diff options
Diffstat (limited to 'arch/arm/mach-tegra')
50 files changed, 10665 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig new file mode 100644 index 0000000000..3a8e2b19d6 --- /dev/null +++ b/arch/arm/mach-tegra/Kconfig @@ -0,0 +1,52 @@ +if TEGRA + +choice + prompt "Tegra SoC select" + +config TEGRA20 + bool "Tegra20 family" + +config TEGRA30 + bool "Tegra30 family" + +config TEGRA114 + bool "Tegra114 family" + +config TEGRA124 + bool "Tegra124 family" + +endchoice + +config SYS_MALLOC_F + default y + +config SYS_MALLOC_F_LEN + default 0x1800 + +config USE_PRIVATE_LIBGCC + default y if SPL_BUILD + +config DM + default y if !SPL_BUILD + +config DM_SERIAL + default y if !SPL_BUILD + +config DM_SPI + default y if !SPL_BUILD + +config DM_SPI_FLASH + default y if !SPL_BUILD + +config DM_I2C + default y if !SPL_BUILD + +config DM_GPIO + default y if !SPL_BUILD + +source "arch/arm/mach-tegra/tegra20/Kconfig" +source "arch/arm/mach-tegra/tegra30/Kconfig" +source "arch/arm/mach-tegra/tegra114/Kconfig" +source "arch/arm/mach-tegra/tegra124/Kconfig" + +endif diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile new file mode 100644 index 0000000000..04cef0a252 --- /dev/null +++ b/arch/arm/mach-tegra/Makefile @@ -0,0 +1,31 @@ +# +# (C) Copyright 2010,2011 Nvidia Corporation. +# +# (C) Copyright 2000-2008 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +ifdef CONFIG_SPL_BUILD +obj-y += spl.o +obj-y += cpu.o +else +obj-$(CONFIG_CMD_ENTERRCM) += cmd_enterrcm.o +endif + +obj-y += ap.o +obj-y += board.o +obj-y += cache.o +obj-y += clock.o +obj-y += lowlevel_init.o +obj-y += pinmux-common.o +obj-y += powergate.o +obj-y += xusb-padctl.o +obj-$(CONFIG_DISPLAY_CPUINFO) += sys_info.o +obj-$(CONFIG_TEGRA124) += vpr.o + +obj-$(CONFIG_TEGRA20) += tegra20/ +obj-$(CONFIG_TEGRA30) += tegra30/ +obj-$(CONFIG_TEGRA114) += tegra114/ +obj-$(CONFIG_TEGRA124) += tegra124/ diff --git a/arch/arm/mach-tegra/ap.c b/arch/arm/mach-tegra/ap.c new file mode 100644 index 0000000000..a17dfd1e22 --- /dev/null +++ b/arch/arm/mach-tegra/ap.c @@ -0,0 +1,169 @@ +/* +* (C) Copyright 2010-2014 +* NVIDIA Corporation <www.nvidia.com> +* + * SPDX-License-Identifier: GPL-2.0+ +*/ + +/* Tegra AP (Application Processor) code */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/gp_padctrl.h> +#include <asm/arch-tegra/ap.h> +#include <asm/arch-tegra/clock.h> +#include <asm/arch-tegra/fuse.h> +#include <asm/arch-tegra/pmc.h> +#include <asm/arch-tegra/scu.h> +#include <asm/arch-tegra/tegra.h> +#include <asm/arch-tegra/warmboot.h> + +int tegra_get_chip(void) +{ + int rev; + struct apb_misc_gp_ctlr *gp = + (struct apb_misc_gp_ctlr *)NV_PA_APB_MISC_GP_BASE; + + /* + * This is undocumented, Chip ID is bits 15:8 of the register + * APB_MISC + 0x804, and has value 0x20 for Tegra20, 0x30 for + * Tegra30, 0x35 for T114, and 0x40 for Tegra124. + */ + rev = (readl(&gp->hidrev) & HIDREV_CHIPID_MASK) >> HIDREV_CHIPID_SHIFT; + debug("%s: CHIPID is 0x%02X\n", __func__, rev); + + return rev; +} + +int tegra_get_sku_info(void) +{ + int sku_id; + struct fuse_regs *fuse = (struct fuse_regs *)NV_PA_FUSE_BASE; + + sku_id = readl(&fuse->sku_info) & 0xff; + debug("%s: SKU info byte is 0x%02X\n", __func__, sku_id); + + return sku_id; +} + +int tegra_get_chip_sku(void) +{ + uint sku_id, chip_id; + + chip_id = tegra_get_chip(); + sku_id = tegra_get_sku_info(); + + switch (chip_id) { + case CHIPID_TEGRA20: + switch (sku_id) { + case SKU_ID_T20_7: + case SKU_ID_T20: + return TEGRA_SOC_T20; + case SKU_ID_T25SE: + case SKU_ID_AP25: + case SKU_ID_T25: + case SKU_ID_AP25E: + case SKU_ID_T25E: + return TEGRA_SOC_T25; + } + break; + case CHIPID_TEGRA30: + switch (sku_id) { + case SKU_ID_T33: + case SKU_ID_T30: + case SKU_ID_TM30MQS_P_A3: + default: + return TEGRA_SOC_T30; + } + break; + case CHIPID_TEGRA114: + switch (sku_id) { + case SKU_ID_T114_ENG: + case SKU_ID_T114_1: + default: + return TEGRA_SOC_T114; + } + break; + case CHIPID_TEGRA124: + switch (sku_id) { + case SKU_ID_T124_ENG: + default: + return TEGRA_SOC_T124; + } + break; + } + + /* unknown chip/sku id */ + printf("%s: ERROR: UNKNOWN CHIP/SKU ID COMBO (0x%02X/0x%02X)\n", + __func__, chip_id, sku_id); + return TEGRA_SOC_UNKNOWN; +} + +static void enable_scu(void) +{ + struct scu_ctlr *scu = (struct scu_ctlr *)NV_PA_ARM_PERIPHBASE; + u32 reg; + + /* Only enable the SCU on T20/T25 */ + if (tegra_get_chip() != CHIPID_TEGRA20) + return; + + /* If SCU already setup/enabled, return */ + if (readl(&scu->scu_ctrl) & SCU_CTRL_ENABLE) + return; + + /* Invalidate all ways for all processors */ + writel(0xFFFF, &scu->scu_inv_all); + + /* Enable SCU - bit 0 */ + reg = readl(&scu->scu_ctrl); + reg |= SCU_CTRL_ENABLE; + writel(reg, &scu->scu_ctrl); +} + +static u32 get_odmdata(void) +{ + /* + * ODMDATA is stored in the BCT in IRAM by the BootROM. + * The BCT start and size are stored in the BIT in IRAM. + * Read the data @ bct_start + (bct_size - 12). This works + * on BCTs for currently supported SoCs, which are locked down. + * If this changes in new chips, we can revisit this algorithm. + */ + + u32 bct_start, odmdata; + + bct_start = readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BCTPTR); + odmdata = readl(bct_start + BCT_ODMDATA_OFFSET); + + return odmdata; +} + +static void init_pmc_scratch(void) +{ + struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 odmdata; + int i; + + /* SCRATCH0 is initialized by the boot ROM and shouldn't be cleared */ + for (i = 0; i < 23; i++) + writel(0, &pmc->pmc_scratch1+i); + + /* ODMDATA is for kernel use to determine RAM size, LP config, etc. */ + odmdata = get_odmdata(); + writel(odmdata, &pmc->pmc_scratch20); +} + +void s_init(void) +{ + /* Init PMC scratch memory */ + init_pmc_scratch(); + + enable_scu(); + + /* init the cache */ + config_cache(); + + /* init vpr */ + config_vpr(); +} diff --git a/arch/arm/mach-tegra/board.c b/arch/arm/mach-tegra/board.c new file mode 100644 index 0000000000..b6a84a5774 --- /dev/null +++ b/arch/arm/mach-tegra/board.c @@ -0,0 +1,159 @@ +/* + * (C) Copyright 2010-2014 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/funcmux.h> +#include <asm/arch/mc.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/board.h> +#include <asm/arch-tegra/pmc.h> +#include <asm/arch-tegra/sys_proto.h> +#include <asm/arch-tegra/warmboot.h> + +DECLARE_GLOBAL_DATA_PTR; + +enum { + /* UARTs which we can enable */ + UARTA = 1 << 0, + UARTB = 1 << 1, + UARTC = 1 << 2, + UARTD = 1 << 3, + UARTE = 1 << 4, + UART_COUNT = 5, +}; + +/* Read the RAM size directly from the memory controller */ +unsigned int query_sdram_size(void) +{ + struct mc_ctlr *const mc = (struct mc_ctlr *)NV_PA_MC_BASE; + u32 size_mb; + + size_mb = readl(&mc->mc_emem_cfg); +#if defined(CONFIG_TEGRA20) + debug("mc->mc_emem_cfg (MEM_SIZE_KB) = 0x%08x\n", size_mb); + size_mb = get_ram_size((void *)PHYS_SDRAM_1, size_mb * 1024); +#else + debug("mc->mc_emem_cfg (MEM_SIZE_MB) = 0x%08x\n", size_mb); + size_mb = get_ram_size((void *)PHYS_SDRAM_1, size_mb * 1024 * 1024); +#endif + +#if defined(CONFIG_TEGRA30) || defined(CONFIG_TEGRA114) + /* External memory limited to 2047 MB due to IROM/HI-VEC */ + if (size_mb == SZ_2G) size_mb -= SZ_1M; +#endif + + return size_mb; +} + +int dram_init(void) +{ + /* We do not initialise DRAM here. We just query the size */ + gd->ram_size = query_sdram_size(); + return 0; +} + +#ifdef CONFIG_DISPLAY_BOARDINFO +int checkboard(void) +{ + printf("Board: %s\n", sysinfo.board_string); + return 0; +} +#endif /* CONFIG_DISPLAY_BOARDINFO */ + +static int uart_configs[] = { +#if defined(CONFIG_TEGRA20) + #if defined(CONFIG_TEGRA_UARTA_UAA_UAB) + FUNCMUX_UART1_UAA_UAB, + #elif defined(CONFIG_TEGRA_UARTA_GPU) + FUNCMUX_UART1_GPU, + #elif defined(CONFIG_TEGRA_UARTA_SDIO1) + FUNCMUX_UART1_SDIO1, + #else + FUNCMUX_UART1_IRRX_IRTX, +#endif + FUNCMUX_UART2_UAD, + -1, + FUNCMUX_UART4_GMC, + -1, +#elif defined(CONFIG_TEGRA30) + FUNCMUX_UART1_ULPI, /* UARTA */ + -1, + -1, + -1, + -1, +#elif defined(CONFIG_TEGRA114) + -1, + -1, + -1, + FUNCMUX_UART4_GMI, /* UARTD */ + -1, +#else /* Tegra124 */ + FUNCMUX_UART1_KBC, /* UARTA */ + -1, + -1, + FUNCMUX_UART4_GPIO, /* UARTD */ + -1, +#endif +}; + +/** + * Set up the specified uarts + * + * @param uarts_ids Mask containing UARTs to init (UARTx) + */ +static void setup_uarts(int uart_ids) +{ + static enum periph_id id_for_uart[] = { + PERIPH_ID_UART1, + PERIPH_ID_UART2, + PERIPH_ID_UART3, + PERIPH_ID_UART4, + PERIPH_ID_UART5, + }; + size_t i; + + for (i = 0; i < UART_COUNT; i++) { + if (uart_ids & (1 << i)) { + enum periph_id id = id_for_uart[i]; + + funcmux_select(id, uart_configs[i]); + clock_ll_start_uart(id); + } + } +} + +void board_init_uart_f(void) +{ + int uart_ids = 0; /* bit mask of which UART ids to enable */ + +#ifdef CONFIG_TEGRA_ENABLE_UARTA + uart_ids |= UARTA; +#endif +#ifdef CONFIG_TEGRA_ENABLE_UARTB + uart_ids |= UARTB; +#endif +#ifdef CONFIG_TEGRA_ENABLE_UARTC + uart_ids |= UARTC; +#endif +#ifdef CONFIG_TEGRA_ENABLE_UARTD + uart_ids |= UARTD; +#endif +#ifdef CONFIG_TEGRA_ENABLE_UARTE + uart_ids |= UARTE; +#endif + setup_uarts(uart_ids); +} + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif diff --git a/arch/arm/mach-tegra/cache.c b/arch/arm/mach-tegra/cache.c new file mode 100644 index 0000000000..94f5bce90e --- /dev/null +++ b/arch/arm/mach-tegra/cache.c @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2013-2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Tegra cache routines */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch-tegra/ap.h> +#include <asm/arch/gp_padctrl.h> + +void config_cache(void) +{ + u32 reg = 0; + + /* enable SMP mode and FW for CPU0, by writing to Auxiliary Ctl reg */ + asm volatile( + "mrc p15, 0, r0, c1, c0, 1\n" + "orr r0, r0, #0x41\n" + "mcr p15, 0, r0, c1, c0, 1\n"); + + /* Currently, only Tegra114+ needs this L2 cache change to boot Linux */ + if (tegra_get_chip() < CHIPID_TEGRA114) + return; + + /* + * Systems with an architectural L2 cache must not use the PL310. + * Config L2CTLR here for a data RAM latency of 3 cycles. + */ + asm("mrc p15, 1, %0, c9, c0, 2" : : "r" (reg)); + reg &= ~7; + reg |= 2; + asm("mcr p15, 1, %0, c9, c0, 2" : : "r" (reg)); +} diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c new file mode 100644 index 0000000000..11c7435505 --- /dev/null +++ b/arch/arm/mach-tegra/clock.c @@ -0,0 +1,669 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Tegra SoC common clock control functions */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/timer.h> +#include <div64.h> +#include <fdtdec.h> + +/* + * This is our record of the current clock rate of each clock. We don't + * fill all of these in since we are only really interested in clocks which + * we use as parents. + */ +static unsigned pll_rate[CLOCK_ID_COUNT]; + +/* + * The oscillator frequency is fixed to one of four set values. Based on this + * the other clocks are set up appropriately. + */ +static unsigned osc_freq[CLOCK_OSC_FREQ_COUNT] = { + 13000000, + 19200000, + 12000000, + 26000000, +}; + +/* return 1 if a peripheral ID is in range */ +#define clock_type_id_isvalid(id) ((id) >= 0 && \ + (id) < CLOCK_TYPE_COUNT) + +char pllp_valid = 1; /* PLLP is set up correctly */ + +/* return 1 if a periphc_internal_id is in range */ +#define periphc_internal_id_isvalid(id) ((id) >= 0 && \ + (id) < PERIPHC_COUNT) + +/* number of clock outputs of a PLL */ +static const u8 pll_num_clkouts[] = { + 1, /* PLLC */ + 1, /* PLLM */ + 4, /* PLLP */ + 1, /* PLLA */ + 0, /* PLLU */ + 0, /* PLLD */ +}; + +int clock_get_osc_bypass(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + reg = readl(&clkrst->crc_osc_ctrl); + return (reg & OSC_XOBP_MASK) >> OSC_XOBP_SHIFT; +} + +/* Returns a pointer to the registers of the given pll */ +static struct clk_pll *get_pll(enum clock_id clkid) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + + assert(clock_id_is_pll(clkid)); + return &clkrst->crc_pll[clkid]; +} + +int clock_ll_read_pll(enum clock_id clkid, u32 *divm, u32 *divn, + u32 *divp, u32 *cpcon, u32 *lfcon) +{ + struct clk_pll *pll = get_pll(clkid); + u32 data; + + assert(clkid != CLOCK_ID_USB); + + /* Safety check, adds to code size but is small */ + if (!clock_id_is_pll(clkid) || clkid == CLOCK_ID_USB) + return -1; + data = readl(&pll->pll_base); + *divm = (data & PLL_DIVM_MASK) >> PLL_DIVM_SHIFT; + *divn = (data & PLL_DIVN_MASK) >> PLL_DIVN_SHIFT; + *divp = (data & PLL_DIVP_MASK) >> PLL_DIVP_SHIFT; + data = readl(&pll->pll_misc); + *cpcon = (data & PLL_CPCON_MASK) >> PLL_CPCON_SHIFT; + *lfcon = (data & PLL_LFCON_MASK) >> PLL_LFCON_SHIFT; + + return 0; +} + +unsigned long clock_start_pll(enum clock_id clkid, u32 divm, u32 divn, + u32 divp, u32 cpcon, u32 lfcon) +{ + struct clk_pll *pll = get_pll(clkid); + u32 data; + + /* + * We cheat by treating all PLL (except PLLU) in the same fashion. + * This works only because: + * - same fields are always mapped at same offsets, except DCCON + * - DCCON is always 0, doesn't conflict + * - M,N, P of PLLP values are ignored for PLLP + */ + data = (cpcon << PLL_CPCON_SHIFT) | (lfcon << PLL_LFCON_SHIFT); + writel(data, &pll->pll_misc); + + data = (divm << PLL_DIVM_SHIFT) | (divn << PLL_DIVN_SHIFT) | + (0 << PLL_BYPASS_SHIFT) | (1 << PLL_ENABLE_SHIFT); + + if (clkid == CLOCK_ID_USB) + data |= divp << PLLU_VCO_FREQ_SHIFT; + else + data |= divp << PLL_DIVP_SHIFT; + writel(data, &pll->pll_base); + + /* calculate the stable time */ + return timer_get_us() + CLOCK_PLL_STABLE_DELAY_US; +} + +void clock_ll_set_source_divisor(enum periph_id periph_id, unsigned source, + unsigned divisor) +{ + u32 *reg = get_periph_source_reg(periph_id); + u32 value; + + value = readl(reg); + + value &= ~OUT_CLK_SOURCE_31_30_MASK; + value |= source << OUT_CLK_SOURCE_31_30_SHIFT; + + value &= ~OUT_CLK_DIVISOR_MASK; + value |= divisor << OUT_CLK_DIVISOR_SHIFT; + + writel(value, reg); +} + +void clock_ll_set_source(enum periph_id periph_id, unsigned source) +{ + u32 *reg = get_periph_source_reg(periph_id); + + clrsetbits_le32(reg, OUT_CLK_SOURCE_31_30_MASK, + source << OUT_CLK_SOURCE_31_30_SHIFT); +} + +/** + * Given the parent's rate and the required rate for the children, this works + * out the peripheral clock divider to use, in 7.1 binary format. + * + * @param divider_bits number of divider bits (8 or 16) + * @param parent_rate clock rate of parent clock in Hz + * @param rate required clock rate for this clock + * @return divider which should be used + */ +static int clk_get_divider(unsigned divider_bits, unsigned long parent_rate, + unsigned long rate) +{ + u64 divider = parent_rate * 2; + unsigned max_divider = 1 << divider_bits; + + divider += rate - 1; + do_div(divider, rate); + + if ((s64)divider - 2 < 0) + return 0; + + if ((s64)divider - 2 >= max_divider) + return -1; + + return divider - 2; +} + +int clock_set_pllout(enum clock_id clkid, enum pll_out_id pllout, unsigned rate) +{ + struct clk_pll *pll = get_pll(clkid); + int data = 0, div = 0, offset = 0; + + if (!clock_id_is_pll(clkid)) + return -1; + + if (pllout + 1 > pll_num_clkouts[clkid]) + return -1; + + div = clk_get_divider(8, pll_rate[clkid], rate); + + if (div < 0) + return -1; + + /* out2 and out4 are in the high part of the register */ + if (pllout == PLL_OUT2 || pllout == PLL_OUT4) + offset = 16; + + data = (div << PLL_OUT_RATIO_SHIFT) | + PLL_OUT_OVRRIDE | PLL_OUT_CLKEN | PLL_OUT_RSTN; + clrsetbits_le32(&pll->pll_out[pllout >> 1], + PLL_OUT_RATIO_MASK << offset, data << offset); + + return 0; +} + +/** + * Given the parent's rate and the divider in 7.1 format, this works out the + * resulting peripheral clock rate. + * + * @param parent_rate clock rate of parent clock in Hz + * @param divider which should be used in 7.1 format + * @return effective clock rate of peripheral + */ +static unsigned long get_rate_from_divider(unsigned long parent_rate, + int divider) +{ + u64 rate; + + rate = (u64)parent_rate * 2; + do_div(rate, divider + 2); + return rate; +} + +unsigned long clock_get_periph_rate(enum periph_id periph_id, + enum clock_id parent) +{ + u32 *reg = get_periph_source_reg(periph_id); + + return get_rate_from_divider(pll_rate[parent], + (readl(reg) & OUT_CLK_DIVISOR_MASK) >> OUT_CLK_DIVISOR_SHIFT); +} + +/** + * Find the best available 7.1 format divisor given a parent clock rate and + * required child clock rate. This function assumes that a second-stage + * divisor is available which can divide by powers of 2 from 1 to 256. + * + * @param divider_bits number of divider bits (8 or 16) + * @param parent_rate clock rate of parent clock in Hz + * @param rate required clock rate for this clock + * @param extra_div value for the second-stage divisor (not set if this + * function returns -1. + * @return divider which should be used, or -1 if nothing is valid + * + */ +static int find_best_divider(unsigned divider_bits, unsigned long parent_rate, + unsigned long rate, int *extra_div) +{ + int shift; + int best_divider = -1; + int best_error = rate; + + /* try dividers from 1 to 256 and find closest match */ + for (shift = 0; shift <= 8 && best_error > 0; shift++) { + unsigned divided_parent = parent_rate >> shift; + int divider = clk_get_divider(divider_bits, divided_parent, + rate); + unsigned effective_rate = get_rate_from_divider(divided_parent, + divider); + int error = rate - effective_rate; + + /* Given a valid divider, look for the lowest error */ + if (divider != -1 && error < best_error) { + best_error = error; + *extra_div = 1 << shift; + best_divider = divider; + } + } + + /* return what we found - *extra_div will already be set */ + return best_divider; +} + +/** + * Adjust peripheral PLL to use the given divider and source. + * + * @param periph_id peripheral to adjust + * @param source Source number (0-3 or 0-7) + * @param mux_bits Number of mux bits (2 or 4) + * @param divider Required divider in 7.1 or 15.1 format + * @return 0 if ok, -1 on error (requesting a parent clock which is not valid + * for this peripheral) + */ +static int adjust_periph_pll(enum periph_id periph_id, int source, + int mux_bits, unsigned divider) +{ + u32 *reg = get_periph_source_reg(periph_id); + + clrsetbits_le32(reg, OUT_CLK_DIVISOR_MASK, + divider << OUT_CLK_DIVISOR_SHIFT); + udelay(1); + + /* work out the source clock and set it */ + if (source < 0) + return -1; + + switch (mux_bits) { + case MASK_BITS_31_30: + clrsetbits_le32(reg, OUT_CLK_SOURCE_31_30_MASK, + source << OUT_CLK_SOURCE_31_30_SHIFT); + break; + + case MASK_BITS_31_29: + clrsetbits_le32(reg, OUT_CLK_SOURCE_31_29_MASK, + source << OUT_CLK_SOURCE_31_29_SHIFT); + break; + + case MASK_BITS_31_28: + clrsetbits_le32(reg, OUT_CLK_SOURCE_31_28_MASK, + source << OUT_CLK_SOURCE_31_28_SHIFT); + break; + + default: + return -1; + } + + udelay(2); + return 0; +} + +unsigned clock_adjust_periph_pll_div(enum periph_id periph_id, + enum clock_id parent, unsigned rate, int *extra_div) +{ + unsigned effective_rate; + int mux_bits, divider_bits, source; + int divider; + int xdiv = 0; + + /* work out the source clock and set it */ + source = get_periph_clock_source(periph_id, parent, &mux_bits, + ÷r_bits); + + divider = find_best_divider(divider_bits, pll_rate[parent], + rate, &xdiv); + if (extra_div) + *extra_div = xdiv; + + assert(divider >= 0); + if (adjust_periph_pll(periph_id, source, mux_bits, divider)) + return -1U; + debug("periph %d, rate=%d, reg=%p = %x\n", periph_id, rate, + get_periph_source_reg(periph_id), + readl(get_periph_source_reg(periph_id))); + + /* Check what we ended up with. This shouldn't matter though */ + effective_rate = clock_get_periph_rate(periph_id, parent); + if (extra_div) + effective_rate /= *extra_div; + if (rate != effective_rate) + debug("Requested clock rate %u not honored (got %u)\n", + rate, effective_rate); + return effective_rate; +} + +unsigned clock_start_periph_pll(enum periph_id periph_id, + enum clock_id parent, unsigned rate) +{ + unsigned effective_rate; + + reset_set_enable(periph_id, 1); + clock_enable(periph_id); + + effective_rate = clock_adjust_periph_pll_div(periph_id, parent, rate, + NULL); + + reset_set_enable(periph_id, 0); + return effective_rate; +} + +void clock_enable(enum periph_id clkid) +{ + clock_set_enable(clkid, 1); +} + +void clock_disable(enum periph_id clkid) +{ + clock_set_enable(clkid, 0); +} + +void reset_periph(enum periph_id periph_id, int us_delay) +{ + /* Put peripheral into reset */ + reset_set_enable(periph_id, 1); + udelay(us_delay); + + /* Remove reset */ + reset_set_enable(periph_id, 0); + + udelay(us_delay); +} + +void reset_cmplx_set_enable(int cpu, int which, int reset) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 mask; + + /* Form the mask, which depends on the cpu chosen (2 or 4) */ + assert(cpu >= 0 && cpu < MAX_NUM_CPU); + mask = which << cpu; + + /* either enable or disable those reset for that CPU */ + if (reset) + writel(mask, &clkrst->crc_cpu_cmplx_set); + else + writel(mask, &clkrst->crc_cpu_cmplx_clr); +} + +unsigned clock_get_rate(enum clock_id clkid) +{ + struct clk_pll *pll; + u32 base; + u32 divm; + u64 parent_rate; + u64 rate; + + parent_rate = osc_freq[clock_get_osc_freq()]; + if (clkid == CLOCK_ID_OSC) + return parent_rate; + + pll = get_pll(clkid); + base = readl(&pll->pll_base); + + /* Oh for bf_unpack()... */ + rate = parent_rate * ((base & PLL_DIVN_MASK) >> PLL_DIVN_SHIFT); + divm = (base & PLL_DIVM_MASK) >> PLL_DIVM_SHIFT; + if (clkid == CLOCK_ID_USB) + divm <<= (base & PLLU_VCO_FREQ_MASK) >> PLLU_VCO_FREQ_SHIFT; + else + divm <<= (base & PLL_DIVP_MASK) >> PLL_DIVP_SHIFT; + do_div(rate, divm); + return rate; +} + +/** + * Set the output frequency you want for each PLL clock. + * PLL output frequencies are programmed by setting their N, M and P values. + * The governing equations are: + * VCO = (Fi / m) * n, Fo = VCO / (2^p) + * where Fo is the output frequency from the PLL. + * Example: Set the output frequency to 216Mhz(Fo) with 12Mhz OSC(Fi) + * 216Mhz = ((12Mhz / m) * n) / (2^p) so n=432,m=12,p=1 + * Please see Tegra TRM section 5.3 to get the detail for PLL Programming + * + * @param n PLL feedback divider(DIVN) + * @param m PLL input divider(DIVN) + * @param p post divider(DIVP) + * @param cpcon base PLL charge pump(CPCON) + * @return 0 if ok, -1 on error (the requested PLL is incorrect and cannot + * be overriden), 1 if PLL is already correct + */ +int clock_set_rate(enum clock_id clkid, u32 n, u32 m, u32 p, u32 cpcon) +{ + u32 base_reg; + u32 misc_reg; + struct clk_pll *pll; + + pll = get_pll(clkid); + + base_reg = readl(&pll->pll_base); + + /* Set BYPASS, m, n and p to PLL_BASE */ + base_reg &= ~PLL_DIVM_MASK; + base_reg |= m << PLL_DIVM_SHIFT; + + base_reg &= ~PLL_DIVN_MASK; + base_reg |= n << PLL_DIVN_SHIFT; + + base_reg &= ~PLL_DIVP_MASK; + base_reg |= p << PLL_DIVP_SHIFT; + + if (clkid == CLOCK_ID_PERIPH) { + /* + * If the PLL is already set up, check that it is correct + * and record this info for clock_verify() to check. + */ + if (base_reg & PLL_BASE_OVRRIDE_MASK) { + base_reg |= PLL_ENABLE_MASK; + if (base_reg != readl(&pll->pll_base)) + pllp_valid = 0; + return pllp_valid ? 1 : -1; + } + base_reg |= PLL_BASE_OVRRIDE_MASK; + } + + base_reg |= PLL_BYPASS_MASK; + writel(base_reg, &pll->pll_base); + + /* Set cpcon to PLL_MISC */ + misc_reg = readl(&pll->pll_misc); + misc_reg &= ~PLL_CPCON_MASK; + misc_reg |= cpcon << PLL_CPCON_SHIFT; + writel(misc_reg, &pll->pll_misc); + + /* Enable PLL */ + base_reg |= PLL_ENABLE_MASK; + writel(base_reg, &pll->pll_base); + + /* Disable BYPASS */ + base_reg &= ~PLL_BYPASS_MASK; + writel(base_reg, &pll->pll_base); + + return 0; +} + +void clock_ll_start_uart(enum periph_id periph_id) +{ + /* Assert UART reset and enable clock */ + reset_set_enable(periph_id, 1); + clock_enable(periph_id); + clock_ll_set_source(periph_id, 0); /* UARTx_CLK_SRC = 00, PLLP_OUT0 */ + + /* wait for 2us */ + udelay(2); + + /* De-assert reset to UART */ + reset_set_enable(periph_id, 0); +} + +#ifdef CONFIG_OF_CONTROL +int clock_decode_periph_id(const void *blob, int node) +{ + enum periph_id id; + u32 cell[2]; + int err; + + err = fdtdec_get_int_array(blob, node, "clocks", cell, + ARRAY_SIZE(cell)); + if (err) + return -1; + id = clk_id_to_periph_id(cell[1]); + assert(clock_periph_id_isvalid(id)); + return id; +} +#endif /* CONFIG_OF_CONTROL */ + +int clock_verify(void) +{ + struct clk_pll *pll = get_pll(CLOCK_ID_PERIPH); + u32 reg = readl(&pll->pll_base); + + if (!pllp_valid) { + printf("Warning: PLLP %x is not correct\n", reg); + return -1; + } + debug("PLLP %x is correct\n", reg); + return 0; +} + +void clock_init(void) +{ + pll_rate[CLOCK_ID_MEMORY] = clock_get_rate(CLOCK_ID_MEMORY); + pll_rate[CLOCK_ID_PERIPH] = clock_get_rate(CLOCK_ID_PERIPH); + pll_rate[CLOCK_ID_CGENERAL] = clock_get_rate(CLOCK_ID_CGENERAL); + pll_rate[CLOCK_ID_OSC] = clock_get_rate(CLOCK_ID_OSC); + pll_rate[CLOCK_ID_SFROM32KHZ] = 32768; + pll_rate[CLOCK_ID_XCPU] = clock_get_rate(CLOCK_ID_XCPU); + debug("Osc = %d\n", pll_rate[CLOCK_ID_OSC]); + debug("PLLM = %d\n", pll_rate[CLOCK_ID_MEMORY]); + debug("PLLP = %d\n", pll_rate[CLOCK_ID_PERIPH]); + debug("PLLC = %d\n", pll_rate[CLOCK_ID_CGENERAL]); + debug("PLLX = %d\n", pll_rate[CLOCK_ID_XCPU]); + + /* Do any special system timer/TSC setup */ + arch_timer_init(); +} + +static void set_avp_clock_source(u32 src) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 val; + + val = (src << SCLK_SWAKEUP_FIQ_SOURCE_SHIFT) | + (src << SCLK_SWAKEUP_IRQ_SOURCE_SHIFT) | + (src << SCLK_SWAKEUP_RUN_SOURCE_SHIFT) | + (src << SCLK_SWAKEUP_IDLE_SOURCE_SHIFT) | + (SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT); + writel(val, &clkrst->crc_sclk_brst_pol); + udelay(3); +} + +/* + * This function is useful on Tegra30, and any later SoCs that have compatible + * PLLP configuration registers. + */ +void tegra30_set_up_pllp(void) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + /* + * Based on the Tegra TRM, the system clock (which is the AVP clock) can + * run up to 275MHz. On power on, the default sytem clock source is set + * to PLLP_OUT0. This function sets PLLP's (hence PLLP_OUT0's) rate to + * 408MHz which is beyond system clock's upper limit. + * + * The fix is to set the system clock to CLK_M before initializing PLLP, + * and then switch back to PLLP_OUT4, which has an appropriate divider + * configured, after PLLP has been configured + */ + set_avp_clock_source(SCLK_SOURCE_CLKM); + + /* + * PLLP output frequency set to 408Mhz + * PLLC output frequency set to 228Mhz + */ + switch (clock_get_osc_freq()) { + case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */ + clock_set_rate(CLOCK_ID_PERIPH, 408, 12, 0, 8); + clock_set_rate(CLOCK_ID_CGENERAL, 456, 12, 1, 8); + break; + + case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */ + clock_set_rate(CLOCK_ID_PERIPH, 408, 26, 0, 8); + clock_set_rate(CLOCK_ID_CGENERAL, 600, 26, 0, 8); + break; + + case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */ + clock_set_rate(CLOCK_ID_PERIPH, 408, 13, 0, 8); + clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8); + break; + case CLOCK_OSC_FREQ_19_2: + default: + /* + * These are not supported. It is too early to print a + * message and the UART likely won't work anyway due to the + * oscillator being wrong. + */ + break; + } + + /* Set PLLP_OUT1, 2, 3 & 4 freqs to 9.6, 48, 102 & 204MHz */ + + /* OUT1, 2 */ + /* Assert RSTN before enable */ + reg = PLLP_OUT2_RSTN_EN | PLLP_OUT1_RSTN_EN; + writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]); + /* Set divisor and reenable */ + reg = (IN_408_OUT_48_DIVISOR << PLLP_OUT2_RATIO) + | PLLP_OUT2_OVR | PLLP_OUT2_CLKEN | PLLP_OUT2_RSTN_DIS + | (IN_408_OUT_9_6_DIVISOR << PLLP_OUT1_RATIO) + | PLLP_OUT1_OVR | PLLP_OUT1_CLKEN | PLLP_OUT1_RSTN_DIS; + writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]); + + /* OUT3, 4 */ + /* Assert RSTN before enable */ + reg = PLLP_OUT4_RSTN_EN | PLLP_OUT3_RSTN_EN; + writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]); + /* Set divisor and reenable */ + reg = (IN_408_OUT_204_DIVISOR << PLLP_OUT4_RATIO) + | PLLP_OUT4_OVR | PLLP_OUT4_CLKEN | PLLP_OUT4_RSTN_DIS + | (IN_408_OUT_102_DIVISOR << PLLP_OUT3_RATIO) + | PLLP_OUT3_OVR | PLLP_OUT3_CLKEN | PLLP_OUT3_RSTN_DIS; + writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]); + + set_avp_clock_source(SCLK_SOURCE_PLLP_OUT4); +} diff --git a/arch/arm/mach-tegra/cmd_enterrcm.c b/arch/arm/mach-tegra/cmd_enterrcm.c new file mode 100644 index 0000000000..a94ec93e7b --- /dev/null +++ b/arch/arm/mach-tegra/cmd_enterrcm.c @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * Derived from code (arch/arm/lib/reset.c) that is: + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke <azu@sysgo.de> + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + * + * (C) Copyright 2004 + * DAVE Srl + * http://www.dave-tech.it + * http://www.wawnet.biz + * mailto:info@wawnet.biz + * + * (C) Copyright 2004 Texas Insturments + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/pmc.h> + +static int do_enterrcm(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + + puts("Entering RCM...\n"); + udelay(50000); + + pmc->pmc_scratch0 = 2; + disable_interrupts(); + reset_cpu(0); + + return 0; +} + +U_BOOT_CMD( + enterrcm, 1, 0, do_enterrcm, + "reset Tegra and enter USB Recovery Mode", + "" +); diff --git a/arch/arm/mach-tegra/cpu.c b/arch/arm/mach-tegra/cpu.c new file mode 100644 index 0000000000..c6f3b029a1 --- /dev/null +++ b/arch/arm/mach-tegra/cpu.c @@ -0,0 +1,384 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/gp_padctrl.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/pmc.h> +#include <asm/arch-tegra/scu.h> +#include "cpu.h" + +int get_num_cpus(void) +{ + struct apb_misc_gp_ctlr *gp; + uint rev; + + gp = (struct apb_misc_gp_ctlr *)NV_PA_APB_MISC_GP_BASE; + rev = (readl(&gp->hidrev) & HIDREV_CHIPID_MASK) >> HIDREV_CHIPID_SHIFT; + + switch (rev) { + case CHIPID_TEGRA20: + return 2; + break; + case CHIPID_TEGRA30: + case CHIPID_TEGRA114: + default: + return 4; + break; + } +} + +/* + * Timing tables for each SOC for all four oscillator options. + */ +struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = { + /* + * T20: 1 GHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 22:20 3 + * PLLX_BASE n 17: 8 10 + * PLLX_BASE m 4: 0 5 + * PLLX_MISC cpcon 11: 8 4 + */ + { + { .n = 1000, .m = 13, .p = 0, .cpcon = 12 }, /* OSC: 13.0 MHz */ + { .n = 625, .m = 12, .p = 0, .cpcon = 8 }, /* OSC: 19.2 MHz */ + { .n = 1000, .m = 12, .p = 0, .cpcon = 12 }, /* OSC: 12.0 MHz */ + { .n = 1000, .m = 26, .p = 0, .cpcon = 12 }, /* OSC: 26.0 MHz */ + }, + /* + * T25: 1.2 GHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 22:20 3 + * PLLX_BASE n 17: 8 10 + * PLLX_BASE m 4: 0 5 + * PLLX_MISC cpcon 11: 8 4 + */ + { + { .n = 923, .m = 10, .p = 0, .cpcon = 12 }, /* OSC: 13.0 MHz */ + { .n = 750, .m = 12, .p = 0, .cpcon = 8 }, /* OSC: 19.2 MHz */ + { .n = 600, .m = 6, .p = 0, .cpcon = 12 }, /* OSC: 12.0 MHz */ + { .n = 600, .m = 13, .p = 0, .cpcon = 12 }, /* OSC: 26.0 MHz */ + }, + /* + * T30: 600 MHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 22:20 3 + * PLLX_BASE n 17: 8 10 + * PLLX_BASE m 4: 0 5 + * PLLX_MISC cpcon 11: 8 4 + */ + { + { .n = 600, .m = 13, .p = 0, .cpcon = 8 }, /* OSC: 13.0 MHz */ + { .n = 500, .m = 16, .p = 0, .cpcon = 8 }, /* OSC: 19.2 MHz */ + { .n = 600, .m = 12, .p = 0, .cpcon = 8 }, /* OSC: 12.0 MHz */ + { .n = 600, .m = 26, .p = 0, .cpcon = 8 }, /* OSC: 26.0 MHz */ + }, + /* + * T114: 700 MHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 23:20 4 + * PLLX_BASE n 15: 8 8 + * PLLX_BASE m 7: 0 8 + */ + { + { .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz */ + { .n = 73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz */ + { .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */ + { .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */ + }, + + /* + * T124: 700 MHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 23:20 4 + * PLLX_BASE n 15: 8 8 + * PLLX_BASE m 7: 0 8 + */ + { + { .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz */ + { .n = 73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz */ + { .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */ + { .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */ + }, +}; + +static inline void pllx_set_iddq(void) +{ +#if defined(CONFIG_TEGRA124) + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + /* Disable IDDQ */ + reg = readl(&clkrst->crc_pllx_misc3); + reg &= ~PLLX_IDDQ_MASK; + writel(reg, &clkrst->crc_pllx_misc3); + udelay(2); + debug("%s: IDDQ: PLLX IDDQ = 0x%08X\n", __func__, + readl(&clkrst->crc_pllx_misc3)); +#endif +} + +int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm, + u32 divp, u32 cpcon) +{ + int chip = tegra_get_chip(); + u32 reg; + + /* If PLLX is already enabled, just return */ + if (readl(&pll->pll_base) & PLL_ENABLE_MASK) { + debug("pllx_set_rate: PLLX already enabled, returning\n"); + return 0; + } + + debug(" pllx_set_rate entry\n"); + + pllx_set_iddq(); + + /* Set BYPASS, m, n and p to PLLX_BASE */ + reg = PLL_BYPASS_MASK | (divm << PLL_DIVM_SHIFT); + reg |= ((divn << PLL_DIVN_SHIFT) | (divp << PLL_DIVP_SHIFT)); + writel(reg, &pll->pll_base); + + /* Set cpcon to PLLX_MISC */ + if (chip == CHIPID_TEGRA20 || chip == CHIPID_TEGRA30) + reg = (cpcon << PLL_CPCON_SHIFT); + else + reg = 0; + + /* Set dccon to PLLX_MISC if freq > 600MHz */ + if (divn > 600) + reg |= (1 << PLL_DCCON_SHIFT); + writel(reg, &pll->pll_misc); + + /* Disable BYPASS */ + reg = readl(&pll->pll_base); + reg &= ~PLL_BYPASS_MASK; + writel(reg, &pll->pll_base); + debug("pllx_set_rate: base = 0x%08X\n", reg); + + /* Set lock_enable to PLLX_MISC */ + reg = readl(&pll->pll_misc); + reg |= PLL_LOCK_ENABLE_MASK; + writel(reg, &pll->pll_misc); + debug("pllx_set_rate: misc = 0x%08X\n", reg); + + /* Enable PLLX last, once it's all configured */ + reg = readl(&pll->pll_base); + reg |= PLL_ENABLE_MASK; + writel(reg, &pll->pll_base); + debug("pllx_set_rate: base final = 0x%08X\n", reg); + + return 0; +} + +void init_pllx(void) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + struct clk_pll_simple *pll = &clkrst->crc_pll_simple[SIMPLE_PLLX]; + int soc_type, sku_info, chip_sku; + enum clock_osc_freq osc; + struct clk_pll_table *sel; + + debug("init_pllx entry\n"); + + /* get SOC (chip) type */ + soc_type = tegra_get_chip(); + debug(" init_pllx: SoC = 0x%02X\n", soc_type); + + /* get SKU info */ + sku_info = tegra_get_sku_info(); + debug(" init_pllx: SKU info byte = 0x%02X\n", sku_info); + + /* get chip SKU, combo of the above info */ + chip_sku = tegra_get_chip_sku(); + debug(" init_pllx: Chip SKU = %d\n", chip_sku); + + /* get osc freq */ + osc = clock_get_osc_freq(); + debug(" init_pllx: osc = %d\n", osc); + + /* set pllx */ + sel = &tegra_pll_x_table[chip_sku][osc]; + pllx_set_rate(pll, sel->n, sel->m, sel->p, sel->cpcon); +} + +void enable_cpu_clock(int enable) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 clk; + + /* + * NOTE: + * Regardless of whether the request is to enable or disable the CPU + * clock, every processor in the CPU complex except the master (CPU 0) + * will have it's clock stopped because the AVP only talks to the + * master. + */ + + if (enable) { + /* Initialize PLLX */ + init_pllx(); + + /* Wait until all clocks are stable */ + udelay(PLL_STABILIZATION_DELAY); + + writel(CCLK_BURST_POLICY, &clkrst->crc_cclk_brst_pol); + writel(SUPER_CCLK_DIVIDER, &clkrst->crc_super_cclk_div); + } + + /* + * Read the register containing the individual CPU clock enables and + * always stop the clocks to CPUs > 0. + */ + clk = readl(&clkrst->crc_clk_cpu_cmplx); + clk |= 1 << CPU1_CLK_STP_SHIFT; + if (get_num_cpus() == 4) + clk |= (1 << CPU2_CLK_STP_SHIFT) + (1 << CPU3_CLK_STP_SHIFT); + + /* Stop/Unstop the CPU clock */ + clk &= ~CPU0_CLK_STP_MASK; + clk |= !enable << CPU0_CLK_STP_SHIFT; + writel(clk, &clkrst->crc_clk_cpu_cmplx); + + clock_enable(PERIPH_ID_CPU); +} + +static int is_cpu_powered(void) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + + return (readl(&pmc->pmc_pwrgate_status) & CPU_PWRED) ? 1 : 0; +} + +static void remove_cpu_io_clamps(void) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 reg; + + /* Remove the clamps on the CPU I/O signals */ + reg = readl(&pmc->pmc_remove_clamping); + reg |= CPU_CLMP; + writel(reg, &pmc->pmc_remove_clamping); + + /* Give I/O signals time to stabilize */ + udelay(IO_STABILIZATION_DELAY); +} + +void powerup_cpu(void) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 reg; + int timeout = IO_STABILIZATION_DELAY; + + if (!is_cpu_powered()) { + /* Toggle the CPU power state (OFF -> ON) */ + reg = readl(&pmc->pmc_pwrgate_toggle); + reg &= PARTID_CP; + reg |= START_CP; + writel(reg, &pmc->pmc_pwrgate_toggle); + + /* Wait for the power to come up */ + while (!is_cpu_powered()) { + if (timeout-- == 0) + printf("CPU failed to power up!\n"); + else + udelay(10); + } + + /* + * Remove the I/O clamps from CPU power partition. + * Recommended only on a Warm boot, if the CPU partition gets + * power gated. Shouldn't cause any harm when called after a + * cold boot according to HW, probably just redundant. + */ + remove_cpu_io_clamps(); + } +} + +void reset_A9_cpu(int reset) +{ + /* + * NOTE: Regardless of whether the request is to hold the CPU in reset + * or take it out of reset, every processor in the CPU complex + * except the master (CPU 0) will be held in reset because the + * AVP only talks to the master. The AVP does not know that there + * are multiple processors in the CPU complex. + */ + int mask = crc_rst_cpu | crc_rst_de | crc_rst_debug; + int num_cpus = get_num_cpus(); + int cpu; + + debug("reset_a9_cpu entry\n"); + /* Hold CPUs 1 onwards in reset, and CPU 0 if asked */ + for (cpu = 1; cpu < num_cpus; cpu++) + reset_cmplx_set_enable(cpu, mask, 1); + reset_cmplx_set_enable(0, mask, reset); + + /* Enable/Disable master CPU reset */ + reset_set_enable(PERIPH_ID_CPU, reset); +} + +void clock_enable_coresight(int enable) +{ + u32 rst, src = 2; + + debug("clock_enable_coresight entry\n"); + clock_set_enable(PERIPH_ID_CORESIGHT, enable); + reset_set_enable(PERIPH_ID_CORESIGHT, !enable); + + if (enable) { + /* + * Put CoreSight on PLLP_OUT0 and divide it down as per + * PLLP base frequency based on SoC type (T20/T30+). + * Clock divider request would setup CSITE clock as 144MHz + * for PLLP base 216MHz and 204MHz for PLLP base 408MHz + */ + src = CLK_DIVIDER(NVBL_PLLP_KHZ, CSITE_KHZ); + clock_ll_set_source_divisor(PERIPH_ID_CSI, 0, src); + + /* Unlock the CPU CoreSight interfaces */ + rst = CORESIGHT_UNLOCK; + writel(rst, CSITE_CPU_DBG0_LAR); + writel(rst, CSITE_CPU_DBG1_LAR); + if (get_num_cpus() == 4) { + writel(rst, CSITE_CPU_DBG2_LAR); + writel(rst, CSITE_CPU_DBG3_LAR); + } + } +} + +void halt_avp(void) +{ + for (;;) { + writel(HALT_COP_EVENT_JTAG | (FLOW_MODE_STOP << 29), + FLOW_CTLR_HALT_COP_EVENTS); + } +} diff --git a/arch/arm/mach-tegra/cpu.h b/arch/arm/mach-tegra/cpu.h new file mode 100644 index 0000000000..b4ca44fce1 --- /dev/null +++ b/arch/arm/mach-tegra/cpu.h @@ -0,0 +1,74 @@ +/* + * (C) Copyright 2010-2014 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <asm/types.h> + +/* Stabilization delays, in usec */ +#define PLL_STABILIZATION_DELAY (300) +#define IO_STABILIZATION_DELAY (1000) + +#if defined(CONFIG_TEGRA20) +#define NVBL_PLLP_KHZ 216000 +#define CSITE_KHZ 144000 +#elif defined(CONFIG_TEGRA30) || defined(CONFIG_TEGRA114) || \ + defined(CONFIG_TEGRA124) +#define NVBL_PLLP_KHZ 408000 +#define CSITE_KHZ 204000 +#else +#error "Unknown Tegra chip!" +#endif + +#define PLLX_ENABLED (1 << 30) +#define CCLK_BURST_POLICY 0x20008888 +#define SUPER_CCLK_DIVIDER 0x80000000 + +/* Calculate clock fractional divider value from ref and target frequencies */ +#define CLK_DIVIDER(REF, FREQ) ((((REF) * 2) / FREQ) - 2) + +/* Calculate clock frequency value from reference and clock divider value */ +#define CLK_FREQUENCY(REF, REG) (((REF) * 2) / (REG + 2)) + +/* AVP/CPU ID */ +#define PG_UP_TAG_0_PID_CPU 0x55555555 /* CPU aka "a9" aka "mpcore" */ +#define PG_UP_TAG_0 0x0 + +#define CORESIGHT_UNLOCK 0xC5ACCE55; + +#define EXCEP_VECTOR_CPU_RESET_VECTOR (NV_PA_EVP_BASE + 0x100) +#define CSITE_CPU_DBG0_LAR (NV_PA_CSITE_BASE + 0x10FB0) +#define CSITE_CPU_DBG1_LAR (NV_PA_CSITE_BASE + 0x12FB0) +#define CSITE_CPU_DBG2_LAR (NV_PA_CSITE_BASE + 0x14FB0) +#define CSITE_CPU_DBG3_LAR (NV_PA_CSITE_BASE + 0x16FB0) + +#define FLOW_CTLR_HALT_COP_EVENTS (NV_PA_FLOW_BASE + 4) +#define FLOW_MODE_STOP 2 +#define HALT_COP_EVENT_JTAG (1 << 28) +#define HALT_COP_EVENT_IRQ_1 (1 << 11) +#define HALT_COP_EVENT_FIQ_1 (1 << 9) + +#define FLOW_MODE_NONE 0 + +#define SIMPLE_PLLX (CLOCK_ID_XCPU - CLOCK_ID_FIRST_SIMPLE) + +struct clk_pll_table { + u16 n; + u16 m; + u8 p; + u8 cpcon; +}; + +void clock_enable_coresight(int enable); +void enable_cpu_clock(int enable); +void halt_avp(void) __attribute__ ((noreturn)); +void init_pllx(void); +void powerup_cpu(void); +void reset_A9_cpu(int reset); +void start_cpu(u32 reset_vector); +int tegra_get_chip(void); +int tegra_get_sku_info(void); +int tegra_get_chip_sku(void); +void adjust_pllp_out_freqs(void); +void pmic_enable_cpu_vdd(void); diff --git a/arch/arm/mach-tegra/lowlevel_init.S b/arch/arm/mach-tegra/lowlevel_init.S new file mode 100644 index 0000000000..a211bb3b1a --- /dev/null +++ b/arch/arm/mach-tegra/lowlevel_init.S @@ -0,0 +1,26 @@ +/* + * SoC-specific setup info + * + * (C) Copyright 2010,2011 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> +#include <version.h> +#include <linux/linkage.h> + + .align 5 +ENTRY(reset_cpu) + ldr r1, rstctl @ get addr for global reset + @ reg + ldr r3, [r1] + orr r3, r3, #0x10 + str r3, [r1] @ force reset + mov r0, r0 +_loop_forever: + b _loop_forever +rstctl: + .word PRM_RSTCTRL +ENDPROC(reset_cpu) diff --git a/arch/arm/mach-tegra/pinmux-common.c b/arch/arm/mach-tegra/pinmux-common.c new file mode 100644 index 0000000000..6e3ab0c14c --- /dev/null +++ b/arch/arm/mach-tegra/pinmux-common.c @@ -0,0 +1,527 @@ +/* + * Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2011 The Chromium OS Authors. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/pinmux.h> + +/* return 1 if a pingrp is in range */ +#define pmux_pingrp_isvalid(pin) (((pin) >= 0) && ((pin) < PMUX_PINGRP_COUNT)) + +/* return 1 if a pmux_func is in range */ +#define pmux_func_isvalid(func) \ + (((func) >= 0) && ((func) < PMUX_FUNC_COUNT)) + +/* return 1 if a pin_pupd_is in range */ +#define pmux_pin_pupd_isvalid(pupd) \ + (((pupd) >= PMUX_PULL_NORMAL) && ((pupd) <= PMUX_PULL_UP)) + +/* return 1 if a pin_tristate_is in range */ +#define pmux_pin_tristate_isvalid(tristate) \ + (((tristate) >= PMUX_TRI_NORMAL) && ((tristate) <= PMUX_TRI_TRISTATE)) + +#ifdef TEGRA_PMX_HAS_PIN_IO_BIT_ETC +/* return 1 if a pin_io_is in range */ +#define pmux_pin_io_isvalid(io) \ + (((io) >= PMUX_PIN_OUTPUT) && ((io) <= PMUX_PIN_INPUT)) + +/* return 1 if a pin_lock is in range */ +#define pmux_pin_lock_isvalid(lock) \ + (((lock) >= PMUX_PIN_LOCK_DISABLE) && ((lock) <= PMUX_PIN_LOCK_ENABLE)) + +/* return 1 if a pin_od is in range */ +#define pmux_pin_od_isvalid(od) \ + (((od) >= PMUX_PIN_OD_DISABLE) && ((od) <= PMUX_PIN_OD_ENABLE)) + +/* return 1 if a pin_ioreset_is in range */ +#define pmux_pin_ioreset_isvalid(ioreset) \ + (((ioreset) >= PMUX_PIN_IO_RESET_DISABLE) && \ + ((ioreset) <= PMUX_PIN_IO_RESET_ENABLE)) + +#ifdef TEGRA_PMX_HAS_RCV_SEL +/* return 1 if a pin_rcv_sel_is in range */ +#define pmux_pin_rcv_sel_isvalid(rcv_sel) \ + (((rcv_sel) >= PMUX_PIN_RCV_SEL_NORMAL) && \ + ((rcv_sel) <= PMUX_PIN_RCV_SEL_HIGH)) +#endif /* TEGRA_PMX_HAS_RCV_SEL */ +#endif /* TEGRA_PMX_HAS_PIN_IO_BIT_ETC */ + +#define _R(offset) (u32 *)(NV_PA_APB_MISC_BASE + (offset)) + +#if defined(CONFIG_TEGRA20) + +#define MUX_REG(grp) _R(0x80 + ((tegra_soc_pingroups[grp].ctl_id / 16) * 4)) +#define MUX_SHIFT(grp) ((tegra_soc_pingroups[grp].ctl_id % 16) * 2) + +#define PULL_REG(grp) _R(0xa0 + ((tegra_soc_pingroups[grp].pull_id / 16) * 4)) +#define PULL_SHIFT(grp) ((tegra_soc_pingroups[grp].pull_id % 16) * 2) + +#define TRI_REG(grp) _R(0x14 + (((grp) / 32) * 4)) +#define TRI_SHIFT(grp) ((grp) % 32) + +#else + +#define REG(pin) _R(0x3000 + ((pin) * 4)) + +#define MUX_REG(pin) REG(pin) +#define MUX_SHIFT(pin) 0 + +#define PULL_REG(pin) REG(pin) +#define PULL_SHIFT(pin) 2 + +#define TRI_REG(pin) REG(pin) +#define TRI_SHIFT(pin) 4 + +#endif /* CONFIG_TEGRA20 */ + +#define DRV_REG(group) _R(0x868 + ((group) * 4)) + +#define IO_SHIFT 5 +#define OD_SHIFT 6 +#define LOCK_SHIFT 7 +#define IO_RESET_SHIFT 8 +#define RCV_SEL_SHIFT 9 + +#if !defined(CONFIG_TEGRA20) && !defined(CONFIG_TEGRA30) +/* This register/field only exists on Tegra114 and later */ +#define APB_MISC_PP_PINMUX_GLOBAL_0 0x40 +#define CLAMP_INPUTS_WHEN_TRISTATED 1 + +void pinmux_set_tristate_input_clamping(void) +{ + u32 *reg = _R(APB_MISC_PP_PINMUX_GLOBAL_0); + u32 val; + + val = readl(reg); + val |= CLAMP_INPUTS_WHEN_TRISTATED; + writel(val, reg); +} +#endif + +void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func) +{ + u32 *reg = MUX_REG(pin); + int i, mux = -1; + u32 val; + + if (func == PMUX_FUNC_DEFAULT) + return; + + /* Error check on pin and func */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_func_isvalid(func)); + + if (func >= PMUX_FUNC_RSVD1) { + mux = (func - PMUX_FUNC_RSVD1) & 3; + } else { + /* Search for the appropriate function */ + for (i = 0; i < 4; i++) { + if (tegra_soc_pingroups[pin].funcs[i] == func) { + mux = i; + break; + } + } + } + assert(mux != -1); + + val = readl(reg); + val &= ~(3 << MUX_SHIFT(pin)); + val |= (mux << MUX_SHIFT(pin)); + writel(val, reg); +} + +void pinmux_set_pullupdown(enum pmux_pingrp pin, enum pmux_pull pupd) +{ + u32 *reg = PULL_REG(pin); + u32 val; + + /* Error check on pin and pupd */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_pin_pupd_isvalid(pupd)); + + val = readl(reg); + val &= ~(3 << PULL_SHIFT(pin)); + val |= (pupd << PULL_SHIFT(pin)); + writel(val, reg); +} + +static void pinmux_set_tristate(enum pmux_pingrp pin, int tri) +{ + u32 *reg = TRI_REG(pin); + u32 val; + + /* Error check on pin */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_pin_tristate_isvalid(tri)); + + val = readl(reg); + if (tri == PMUX_TRI_TRISTATE) + val |= (1 << TRI_SHIFT(pin)); + else + val &= ~(1 << TRI_SHIFT(pin)); + writel(val, reg); +} + +void pinmux_tristate_enable(enum pmux_pingrp pin) +{ + pinmux_set_tristate(pin, PMUX_TRI_TRISTATE); +} + +void pinmux_tristate_disable(enum pmux_pingrp pin) +{ + pinmux_set_tristate(pin, PMUX_TRI_NORMAL); +} + +#ifdef TEGRA_PMX_HAS_PIN_IO_BIT_ETC +void pinmux_set_io(enum pmux_pingrp pin, enum pmux_pin_io io) +{ + u32 *reg = REG(pin); + u32 val; + + if (io == PMUX_PIN_NONE) + return; + + /* Error check on pin and io */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_pin_io_isvalid(io)); + + val = readl(reg); + if (io == PMUX_PIN_INPUT) + val |= (io & 1) << IO_SHIFT; + else + val &= ~(1 << IO_SHIFT); + writel(val, reg); +} + +static void pinmux_set_lock(enum pmux_pingrp pin, enum pmux_pin_lock lock) +{ + u32 *reg = REG(pin); + u32 val; + + if (lock == PMUX_PIN_LOCK_DEFAULT) + return; + + /* Error check on pin and lock */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_pin_lock_isvalid(lock)); + + val = readl(reg); + if (lock == PMUX_PIN_LOCK_ENABLE) { + val |= (1 << LOCK_SHIFT); + } else { + if (val & (1 << LOCK_SHIFT)) + printf("%s: Cannot clear LOCK bit!\n", __func__); + val &= ~(1 << LOCK_SHIFT); + } + writel(val, reg); + + return; +} + +static void pinmux_set_od(enum pmux_pingrp pin, enum pmux_pin_od od) +{ + u32 *reg = REG(pin); + u32 val; + + if (od == PMUX_PIN_OD_DEFAULT) + return; + + /* Error check on pin and od */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_pin_od_isvalid(od)); + + val = readl(reg); + if (od == PMUX_PIN_OD_ENABLE) + val |= (1 << OD_SHIFT); + else + val &= ~(1 << OD_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_set_ioreset(enum pmux_pingrp pin, + enum pmux_pin_ioreset ioreset) +{ + u32 *reg = REG(pin); + u32 val; + + if (ioreset == PMUX_PIN_IO_RESET_DEFAULT) + return; + + /* Error check on pin and ioreset */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_pin_ioreset_isvalid(ioreset)); + + val = readl(reg); + if (ioreset == PMUX_PIN_IO_RESET_ENABLE) + val |= (1 << IO_RESET_SHIFT); + else + val &= ~(1 << IO_RESET_SHIFT); + writel(val, reg); + + return; +} + +#ifdef TEGRA_PMX_HAS_RCV_SEL +static void pinmux_set_rcv_sel(enum pmux_pingrp pin, + enum pmux_pin_rcv_sel rcv_sel) +{ + u32 *reg = REG(pin); + u32 val; + + if (rcv_sel == PMUX_PIN_RCV_SEL_DEFAULT) + return; + + /* Error check on pin and rcv_sel */ + assert(pmux_pingrp_isvalid(pin)); + assert(pmux_pin_rcv_sel_isvalid(rcv_sel)); + + val = readl(reg); + if (rcv_sel == PMUX_PIN_RCV_SEL_HIGH) + val |= (1 << RCV_SEL_SHIFT); + else + val &= ~(1 << RCV_SEL_SHIFT); + writel(val, reg); + + return; +} +#endif /* TEGRA_PMX_HAS_RCV_SEL */ +#endif /* TEGRA_PMX_HAS_PIN_IO_BIT_ETC */ + +static void pinmux_config_pingrp(const struct pmux_pingrp_config *config) +{ + enum pmux_pingrp pin = config->pingrp; + + pinmux_set_func(pin, config->func); + pinmux_set_pullupdown(pin, config->pull); + pinmux_set_tristate(pin, config->tristate); +#ifdef TEGRA_PMX_HAS_PIN_IO_BIT_ETC + pinmux_set_io(pin, config->io); + pinmux_set_lock(pin, config->lock); + pinmux_set_od(pin, config->od); + pinmux_set_ioreset(pin, config->ioreset); +#ifdef TEGRA_PMX_HAS_RCV_SEL + pinmux_set_rcv_sel(pin, config->rcv_sel); +#endif +#endif +} + +void pinmux_config_pingrp_table(const struct pmux_pingrp_config *config, + int len) +{ + int i; + + for (i = 0; i < len; i++) + pinmux_config_pingrp(&config[i]); +} + +#ifdef TEGRA_PMX_HAS_DRVGRPS + +#define pmux_drvgrp_isvalid(pd) (((pd) >= 0) && ((pd) < PMUX_DRVGRP_COUNT)) + +#define pmux_slw_isvalid(slw) \ + (((slw) >= PMUX_SLWF_MIN) && ((slw) <= PMUX_SLWF_MAX)) + +#define pmux_drv_isvalid(drv) \ + (((drv) >= PMUX_DRVUP_MIN) && ((drv) <= PMUX_DRVUP_MAX)) + +#define pmux_lpmd_isvalid(lpm) \ + (((lpm) >= PMUX_LPMD_X8) && ((lpm) <= PMUX_LPMD_X)) + +#define pmux_schmt_isvalid(schmt) \ + (((schmt) >= PMUX_SCHMT_DISABLE) && ((schmt) <= PMUX_SCHMT_ENABLE)) + +#define pmux_hsm_isvalid(hsm) \ + (((hsm) >= PMUX_HSM_DISABLE) && ((hsm) <= PMUX_HSM_ENABLE)) + +#define HSM_SHIFT 2 +#define SCHMT_SHIFT 3 +#define LPMD_SHIFT 4 +#define LPMD_MASK (3 << LPMD_SHIFT) +#define DRVDN_SHIFT 12 +#define DRVDN_MASK (0x7F << DRVDN_SHIFT) +#define DRVUP_SHIFT 20 +#define DRVUP_MASK (0x7F << DRVUP_SHIFT) +#define SLWR_SHIFT 28 +#define SLWR_MASK (3 << SLWR_SHIFT) +#define SLWF_SHIFT 30 +#define SLWF_MASK (3 << SLWF_SHIFT) + +static void pinmux_set_drvup_slwf(enum pmux_drvgrp grp, int slwf) +{ + u32 *reg = DRV_REG(grp); + u32 val; + + /* NONE means unspecified/do not change/use POR value */ + if (slwf == PMUX_SLWF_NONE) + return; + + /* Error check on pad and slwf */ + assert(pmux_drvgrp_isvalid(grp)); + assert(pmux_slw_isvalid(slwf)); + + val = readl(reg); + val &= ~SLWF_MASK; + val |= (slwf << SLWF_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_set_drvdn_slwr(enum pmux_drvgrp grp, int slwr) +{ + u32 *reg = DRV_REG(grp); + u32 val; + + /* NONE means unspecified/do not change/use POR value */ + if (slwr == PMUX_SLWR_NONE) + return; + + /* Error check on pad and slwr */ + assert(pmux_drvgrp_isvalid(grp)); + assert(pmux_slw_isvalid(slwr)); + + val = readl(reg); + val &= ~SLWR_MASK; + val |= (slwr << SLWR_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_set_drvup(enum pmux_drvgrp grp, int drvup) +{ + u32 *reg = DRV_REG(grp); + u32 val; + + /* NONE means unspecified/do not change/use POR value */ + if (drvup == PMUX_DRVUP_NONE) + return; + + /* Error check on pad and drvup */ + assert(pmux_drvgrp_isvalid(grp)); + assert(pmux_drv_isvalid(drvup)); + + val = readl(reg); + val &= ~DRVUP_MASK; + val |= (drvup << DRVUP_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_set_drvdn(enum pmux_drvgrp grp, int drvdn) +{ + u32 *reg = DRV_REG(grp); + u32 val; + + /* NONE means unspecified/do not change/use POR value */ + if (drvdn == PMUX_DRVDN_NONE) + return; + + /* Error check on pad and drvdn */ + assert(pmux_drvgrp_isvalid(grp)); + assert(pmux_drv_isvalid(drvdn)); + + val = readl(reg); + val &= ~DRVDN_MASK; + val |= (drvdn << DRVDN_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_set_lpmd(enum pmux_drvgrp grp, enum pmux_lpmd lpmd) +{ + u32 *reg = DRV_REG(grp); + u32 val; + + /* NONE means unspecified/do not change/use POR value */ + if (lpmd == PMUX_LPMD_NONE) + return; + + /* Error check pad and lpmd value */ + assert(pmux_drvgrp_isvalid(grp)); + assert(pmux_lpmd_isvalid(lpmd)); + + val = readl(reg); + val &= ~LPMD_MASK; + val |= (lpmd << LPMD_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_set_schmt(enum pmux_drvgrp grp, enum pmux_schmt schmt) +{ + u32 *reg = DRV_REG(grp); + u32 val; + + /* NONE means unspecified/do not change/use POR value */ + if (schmt == PMUX_SCHMT_NONE) + return; + + /* Error check pad */ + assert(pmux_drvgrp_isvalid(grp)); + assert(pmux_schmt_isvalid(schmt)); + + val = readl(reg); + if (schmt == PMUX_SCHMT_ENABLE) + val |= (1 << SCHMT_SHIFT); + else + val &= ~(1 << SCHMT_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_set_hsm(enum pmux_drvgrp grp, enum pmux_hsm hsm) +{ + u32 *reg = DRV_REG(grp); + u32 val; + + /* NONE means unspecified/do not change/use POR value */ + if (hsm == PMUX_HSM_NONE) + return; + + /* Error check pad */ + assert(pmux_drvgrp_isvalid(grp)); + assert(pmux_hsm_isvalid(hsm)); + + val = readl(reg); + if (hsm == PMUX_HSM_ENABLE) + val |= (1 << HSM_SHIFT); + else + val &= ~(1 << HSM_SHIFT); + writel(val, reg); + + return; +} + +static void pinmux_config_drvgrp(const struct pmux_drvgrp_config *config) +{ + enum pmux_drvgrp grp = config->drvgrp; + + pinmux_set_drvup_slwf(grp, config->slwf); + pinmux_set_drvdn_slwr(grp, config->slwr); + pinmux_set_drvup(grp, config->drvup); + pinmux_set_drvdn(grp, config->drvdn); + pinmux_set_lpmd(grp, config->lpmd); + pinmux_set_schmt(grp, config->schmt); + pinmux_set_hsm(grp, config->hsm); +} + +void pinmux_config_drvgrp_table(const struct pmux_drvgrp_config *config, + int len) +{ + int i; + + for (i = 0; i < len; i++) + pinmux_config_drvgrp(&config[i]); +} +#endif /* TEGRA_PMX_HAS_DRVGRPS */ diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c new file mode 100644 index 0000000000..439cff36b9 --- /dev/null +++ b/arch/arm/mach-tegra/powergate.c @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <errno.h> + +#include <asm/io.h> +#include <asm/types.h> + +#include <asm/arch/powergate.h> +#include <asm/arch/tegra.h> + +#define PWRGATE_TOGGLE 0x30 +#define PWRGATE_TOGGLE_START (1 << 8) + +#define REMOVE_CLAMPING 0x34 + +#define PWRGATE_STATUS 0x38 + +static int tegra_powergate_set(enum tegra_powergate id, bool state) +{ + u32 value, mask = state ? (1 << id) : 0, old_mask; + unsigned long start, timeout = 25; + + value = readl(NV_PA_PMC_BASE + PWRGATE_STATUS); + old_mask = value & (1 << id); + + if (mask == old_mask) + return 0; + + writel(PWRGATE_TOGGLE_START | id, NV_PA_PMC_BASE + PWRGATE_TOGGLE); + + start = get_timer(0); + + while (get_timer(start) < timeout) { + value = readl(NV_PA_PMC_BASE + PWRGATE_STATUS); + if ((value & (1 << id)) == mask) + return 0; + } + + return -ETIMEDOUT; +} + +static int tegra_powergate_power_on(enum tegra_powergate id) +{ + return tegra_powergate_set(id, true); +} + +int tegra_powergate_power_off(enum tegra_powergate id) +{ + return tegra_powergate_set(id, false); +} + +static int tegra_powergate_remove_clamping(enum tegra_powergate id) +{ + unsigned long value; + + /* + * The REMOVE_CLAMPING register has the bits for the PCIE and VDEC + * partitions reversed. This was originally introduced on Tegra20 but + * has since been carried forward for backwards-compatibility. + */ + if (id == TEGRA_POWERGATE_VDEC) + value = 1 << TEGRA_POWERGATE_PCIE; + else if (id == TEGRA_POWERGATE_PCIE) + value = 1 << TEGRA_POWERGATE_VDEC; + else + value = 1 << id; + + writel(value, NV_PA_PMC_BASE + REMOVE_CLAMPING); + + return 0; +} + +int tegra_powergate_sequence_power_up(enum tegra_powergate id, + enum periph_id periph) +{ + int err; + + reset_set_enable(periph, 1); + + err = tegra_powergate_power_on(id); + if (err < 0) + return err; + + clock_enable(periph); + + udelay(10); + + err = tegra_powergate_remove_clamping(id); + if (err < 0) + return err; + + udelay(10); + + reset_set_enable(periph, 0); + + return 0; +} diff --git a/arch/arm/mach-tegra/spl.c b/arch/arm/mach-tegra/spl.c new file mode 100644 index 0000000000..e0f9d5b6b4 --- /dev/null +++ b/arch/arm/mach-tegra/spl.c @@ -0,0 +1,49 @@ +/* + * (C) Copyright 2012 + * NVIDIA Inc, <www.nvidia.com> + * + * Allen Martin <amartin@nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <spl.h> + +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/apb_misc.h> +#include <asm/arch-tegra/board.h> +#include <asm/spl.h> +#include "cpu.h" + +void spl_board_init(void) +{ + struct apb_misc_pp_ctlr *apb_misc = + (struct apb_misc_pp_ctlr *)NV_PA_APB_MISC_BASE; + + /* enable JTAG */ + writel(0xC0, &apb_misc->cfg_ctl); + + board_init_uart_f(); + + /* Initialize periph GPIOs */ + gpio_early_init_uart(); + + clock_early_init(); + preloader_console_init(); +} + +u32 spl_boot_device(void) +{ + return BOOT_DEVICE_RAM; +} + +void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) +{ + debug("image entry point: 0x%X\n", spl_image->entry_point); + + start_cpu((u32)spl_image->entry_point); + halt_avp(); +} diff --git a/arch/arm/mach-tegra/sys_info.c b/arch/arm/mach-tegra/sys_info.c new file mode 100644 index 0000000000..5933c35ddd --- /dev/null +++ b/arch/arm/mach-tegra/sys_info.c @@ -0,0 +1,31 @@ +/* + * (C) Copyright 2010,2011 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <linux/ctype.h> + +static void upstring(char *s) +{ + while (*s) { + *s = toupper(*s); + s++; + } +} + +/* Print CPU information */ +int print_cpuinfo(void) +{ + char soc_name[10]; + + strncpy(soc_name, CONFIG_SYS_SOC, 10); + upstring(soc_name); + puts(soc_name); + puts("\n"); + + /* TBD: Add printf of major/minor rev info, stepping, etc. */ + return 0; +} diff --git a/arch/arm/mach-tegra/tegra114/Kconfig b/arch/arm/mach-tegra/tegra114/Kconfig new file mode 100644 index 0000000000..31012bc770 --- /dev/null +++ b/arch/arm/mach-tegra/tegra114/Kconfig @@ -0,0 +1,16 @@ +if TEGRA114 + +choice + prompt "Tegra114 board select" + +config TARGET_DALMORE + bool "NVIDIA Tegra114 Dalmore evaluation board" + +endchoice + +config SYS_SOC + default "tegra114" + +source "board/nvidia/dalmore/Kconfig" + +endif diff --git a/arch/arm/mach-tegra/tegra114/Makefile b/arch/arm/mach-tegra/tegra114/Makefile new file mode 100644 index 0000000000..7489f5f146 --- /dev/null +++ b/arch/arm/mach-tegra/tegra114/Makefile @@ -0,0 +1,19 @@ +# +# Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved. +# +# This program is free software; you can redistribute it and/or modify it +# under the terms and conditions of the GNU General Public License, +# version 2, as published by the Free Software Foundation. +# +# This program is distributed in the hope it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +obj-$(CONFIG_SPL_BUILD) += cpu.o + +obj-y += clock.o funcmux.o pinmux.o diff --git a/arch/arm/mach-tegra/tegra114/clock.c b/arch/arm/mach-tegra/tegra114/clock.c new file mode 100644 index 0000000000..d5194e11b5 --- /dev/null +++ b/arch/arm/mach-tegra/tegra114/clock.c @@ -0,0 +1,669 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Tegra114 Clock control functions */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/sysctr.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/timer.h> +#include <div64.h> +#include <fdtdec.h> + +/* + * Clock types that we can use as a source. The Tegra114 has muxes for the + * peripheral clocks, and in most cases there are four options for the clock + * source. This gives us a clock 'type' and exploits what commonality exists + * in the device. + * + * Letters are obvious, except for T which means CLK_M, and S which means the + * clock derived from 32KHz. Beware that CLK_M (also called OSC in the + * datasheet) and PLL_M are different things. The former is the basic + * clock supplied to the SOC from an external oscillator. The latter is the + * memory clock PLL. + * + * See definitions in clock_id in the header file. + */ +enum clock_type_id { + CLOCK_TYPE_AXPT, /* PLL_A, PLL_X, PLL_P, CLK_M */ + CLOCK_TYPE_MCPA, /* and so on */ + CLOCK_TYPE_MCPT, + CLOCK_TYPE_PCM, + CLOCK_TYPE_PCMT, + CLOCK_TYPE_PCMT16, + CLOCK_TYPE_PDCT, + CLOCK_TYPE_ACPT, + CLOCK_TYPE_ASPTE, + CLOCK_TYPE_PMDACD2T, + CLOCK_TYPE_PCST, + + CLOCK_TYPE_COUNT, + CLOCK_TYPE_NONE = -1, /* invalid clock type */ +}; + +enum { + CLOCK_MAX_MUX = 8 /* number of source options for each clock */ +}; + +/* + * Clock source mux for each clock type. This just converts our enum into + * a list of mux sources for use by the code. + * + * Note: + * The extra column in each clock source array is used to store the mask + * bits in its register for the source. + */ +#define CLK(x) CLOCK_ID_ ## x +static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX+1] = { + { CLK(AUDIO), CLK(XCPU), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(AUDIO), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(NONE), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(DISPLAY), CLK(CGENERAL), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(AUDIO), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(AUDIO), CLK(SFROM32KHZ), CLK(PERIPH), CLK(OSC), + CLK(EPCI), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_29}, + { CLK(PERIPH), CLK(MEMORY), CLK(DISPLAY), CLK(AUDIO), + CLK(CGENERAL), CLK(DISPLAY2), CLK(OSC), CLK(NONE), + MASK_BITS_31_29}, + { CLK(PERIPH), CLK(CGENERAL), CLK(SFROM32KHZ), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_28} +}; + +/* + * Clock type for each peripheral clock source. We put the name in each + * record just so it is easy to match things up + */ +#define TYPE(name, type) type +static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = { + /* 0x00 */ + TYPE(PERIPHC_I2S1, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2S2, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_OUT, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_IN, CLOCK_TYPE_PCM), + TYPE(PERIPHC_PWM, CLOCK_TYPE_PCST), /* only PWM uses b29:28 */ + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC2, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SBC3, CLOCK_TYPE_PCMT), + + /* 0x08 */ + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_I2C1, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_I2C5, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_DISP1, CLOCK_TYPE_PMDACD2T), + TYPE(PERIPHC_DISP2, CLOCK_TYPE_PMDACD2T), + + /* 0x10 */ + TYPE(PERIPHC_CVE, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SDMMC1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SDMMC2, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_G3D, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_G2D, CLOCK_TYPE_MCPA), + + /* 0x18 */ + TYPE(PERIPHC_NDFLASH, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SDMMC4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_VFIR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_EPP, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MPE, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MIPI, CLOCK_TYPE_PCMT), /* MIPI base-band HSI */ + TYPE(PERIPHC_UART1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_UART2, CLOCK_TYPE_PCMT), + + /* 0x20 */ + TYPE(PERIPHC_HOST1X, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_TVO, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_HDMI, CLOCK_TYPE_PMDACD2T), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_TVDAC, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_I2C2, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_EMC, CLOCK_TYPE_MCPT), + + /* 0x28 */ + TYPE(PERIPHC_UART3, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2C3, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_SDMMC3, CLOCK_TYPE_PCMT), + + /* 0x30 */ + TYPE(PERIPHC_UART4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_UART5, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_VDE, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_OWR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NOR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_CSITE, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2S0, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + + /* 0x38h */ /* Jumps to reg offset 0x3B0h */ + TYPE(PERIPHC_G3D2, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MSELECT, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_TSENSOR, CLOCK_TYPE_PCST), /* s/b PCTS */ + TYPE(PERIPHC_I2S3, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2S4, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2C4, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_SBC5, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SBC6, CLOCK_TYPE_PCMT), + + /* 0x40 */ + TYPE(PERIPHC_AUDIO, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_DAM0, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_DAM1, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_DAM2, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_HDA2CODEC2X, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_ACTMON, CLOCK_TYPE_PCST), /* MASK 31:30 */ + TYPE(PERIPHC_EXTPERIPH1, CLOCK_TYPE_ASPTE), + + /* 0x48 */ + TYPE(PERIPHC_EXTPERIPH2, CLOCK_TYPE_ASPTE), + TYPE(PERIPHC_EXTPERIPH3, CLOCK_TYPE_ASPTE), + TYPE(PERIPHC_NANDSPEED, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2CSLOW, CLOCK_TYPE_PCST), /* MASK 31:30 */ + TYPE(PERIPHC_SYS, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SPEEDO, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + + /* 0x50 */ + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SATAOOB, CLOCK_TYPE_PCMT), /* offset 0x420h */ + TYPE(PERIPHC_SATA, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_HDA, CLOCK_TYPE_PCMT), +}; + +/* + * This array translates a periph_id to a periphc_internal_id + * + * Not present/matched up: + * uint vi_sensor; _VI_SENSOR_0, 0x1A8 + * SPDIF - which is both 0x08 and 0x0c + * + */ +#define NONE(name) (-1) +#define OFFSET(name, value) PERIPHC_ ## name +static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = { + /* Low word: 31:0 */ + NONE(CPU), + NONE(COP), + NONE(TRIGSYS), + NONE(RESERVED3), + NONE(RTC), + NONE(TMR), + PERIPHC_UART1, + PERIPHC_UART2, /* and vfir 0x68 */ + + /* 8 */ + NONE(GPIO), + PERIPHC_SDMMC2, + NONE(SPDIF), /* 0x08 and 0x0c, unclear which to use */ + PERIPHC_I2S1, + PERIPHC_I2C1, + PERIPHC_NDFLASH, + PERIPHC_SDMMC1, + PERIPHC_SDMMC4, + + /* 16 */ + NONE(RESERVED16), + PERIPHC_PWM, + PERIPHC_I2S2, + PERIPHC_EPP, + PERIPHC_VI, + PERIPHC_G2D, + NONE(USBD), + NONE(ISP), + + /* 24 */ + PERIPHC_G3D, + NONE(RESERVED25), + PERIPHC_DISP2, + PERIPHC_DISP1, + PERIPHC_HOST1X, + NONE(VCP), + PERIPHC_I2S0, + NONE(CACHE2), + + /* Middle word: 63:32 */ + NONE(MEM), + NONE(AHBDMA), + NONE(APBDMA), + NONE(RESERVED35), + NONE(RESERVED36), + NONE(STAT_MON), + NONE(RESERVED38), + NONE(RESERVED39), + + /* 40 */ + NONE(KFUSE), + NONE(SBC1), /* SBC1, 0x34, is this SPI1? */ + PERIPHC_NOR, + NONE(RESERVED43), + PERIPHC_SBC2, + NONE(RESERVED45), + PERIPHC_SBC3, + PERIPHC_I2C5, + + /* 48 */ + NONE(DSI), + PERIPHC_TVO, /* also CVE 0x40 */ + PERIPHC_MIPI, + PERIPHC_HDMI, + NONE(CSI), + PERIPHC_TVDAC, + PERIPHC_I2C2, + PERIPHC_UART3, + + /* 56 */ + NONE(RESERVED56), + PERIPHC_EMC, + NONE(USB2), + NONE(USB3), + PERIPHC_MPE, + PERIPHC_VDE, + NONE(BSEA), + NONE(BSEV), + + /* Upper word 95:64 */ + PERIPHC_SPEEDO, + PERIPHC_UART4, + PERIPHC_UART5, + PERIPHC_I2C3, + PERIPHC_SBC4, + PERIPHC_SDMMC3, + NONE(PCIE), + PERIPHC_OWR, + + /* 72 */ + NONE(AFI), + PERIPHC_CSITE, + NONE(PCIEXCLK), + NONE(AVPUCQ), + NONE(RESERVED76), + NONE(RESERVED77), + NONE(RESERVED78), + NONE(DTV), + + /* 80 */ + PERIPHC_NANDSPEED, + PERIPHC_I2CSLOW, + NONE(DSIB), + NONE(RESERVED83), + NONE(IRAMA), + NONE(IRAMB), + NONE(IRAMC), + NONE(IRAMD), + + /* 88 */ + NONE(CRAM2), + NONE(RESERVED89), + NONE(MDOUBLER), + NONE(RESERVED91), + NONE(SUSOUT), + NONE(RESERVED93), + NONE(RESERVED94), + NONE(RESERVED95), + + /* V word: 31:0 */ + NONE(CPUG), + NONE(CPULP), + PERIPHC_G3D2, + PERIPHC_MSELECT, + PERIPHC_TSENSOR, + PERIPHC_I2S3, + PERIPHC_I2S4, + PERIPHC_I2C4, + + /* 08 */ + PERIPHC_SBC5, + PERIPHC_SBC6, + PERIPHC_AUDIO, + NONE(APBIF), + PERIPHC_DAM0, + PERIPHC_DAM1, + PERIPHC_DAM2, + PERIPHC_HDA2CODEC2X, + + /* 16 */ + NONE(ATOMICS), + NONE(RESERVED17), + NONE(RESERVED18), + NONE(RESERVED19), + NONE(RESERVED20), + NONE(RESERVED21), + NONE(RESERVED22), + PERIPHC_ACTMON, + + /* 24 */ + NONE(RESERVED24), + NONE(RESERVED25), + NONE(RESERVED26), + NONE(RESERVED27), + PERIPHC_SATA, + PERIPHC_HDA, + NONE(RESERVED30), + NONE(RESERVED31), + + /* W word: 31:0 */ + NONE(HDA2HDMICODEC), + NONE(RESERVED1_SATACOLD), + NONE(RESERVED2_PCIERX0), + NONE(RESERVED3_PCIERX1), + NONE(RESERVED4_PCIERX2), + NONE(RESERVED5_PCIERX3), + NONE(RESERVED6_PCIERX4), + NONE(RESERVED7_PCIERX5), + + /* 40 */ + NONE(CEC), + NONE(PCIE2_IOBIST), + NONE(EMC_IOBIST), + NONE(HDMI_IOBIST), + NONE(SATA_IOBIST), + NONE(MIPI_IOBIST), + NONE(EMC1_IOBIST), + NONE(XUSB), + + /* 48 */ + NONE(CILAB), + NONE(CILCD), + NONE(CILE), + NONE(DSIA_LP), + NONE(DSIB_LP), + NONE(RESERVED21_ENTROPY), + NONE(RESERVED22_W), + NONE(RESERVED23_W), + + /* 56 */ + NONE(RESERVED24_W), + NONE(AMX0), + NONE(ADX0), + NONE(DVFS), + NONE(XUSB_SS), + NONE(EMC_DLL), + NONE(MC1), + NONE(EMC1), +}; + +/* + * Get the oscillator frequency, from the corresponding hardware configuration + * field. Note that T30/T114 support 3 new higher freqs, but we map back + * to the old T20 freqs. Support for the higher oscillators is TBD. + */ +enum clock_osc_freq clock_get_osc_freq(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + reg = readl(&clkrst->crc_osc_ctrl); + reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; + + if (reg & 1) /* one of the newer freqs */ + printf("Warning: OSC_FREQ is unsupported! (%d)\n", reg); + + return reg >> 2; /* Map to most common (T20) freqs */ +} + +/* Returns a pointer to the clock source register for a peripheral */ +u32 *get_periph_source_reg(enum periph_id periph_id) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + enum periphc_internal_id internal_id; + + /* Coresight is a special case */ + if (periph_id == PERIPH_ID_CSI) + return &clkrst->crc_clk_src[PERIPH_ID_CSI+1]; + + assert(periph_id >= PERIPH_ID_FIRST && periph_id < PERIPH_ID_COUNT); + internal_id = periph_id_to_internal_id[periph_id]; + assert(internal_id != -1); + if (internal_id >= PERIPHC_VW_FIRST) { + internal_id -= PERIPHC_VW_FIRST; + return &clkrst->crc_clk_src_vw[internal_id]; + } else + return &clkrst->crc_clk_src[internal_id]; +} + +/** + * Given a peripheral ID and the required source clock, this returns which + * value should be programmed into the source mux for that peripheral. + * + * There is special code here to handle the one source type with 5 sources. + * + * @param periph_id peripheral to start + * @param source PLL id of required parent clock + * @param mux_bits Set to number of bits in mux register: 2 or 4 + * @param divider_bits Set to number of divider bits (8 or 16) + * @return mux value (0-4, or -1 if not found) + */ +int get_periph_clock_source(enum periph_id periph_id, + enum clock_id parent, int *mux_bits, int *divider_bits) +{ + enum clock_type_id type; + enum periphc_internal_id internal_id; + int mux; + + assert(clock_periph_id_isvalid(periph_id)); + + internal_id = periph_id_to_internal_id[periph_id]; + assert(periphc_internal_id_isvalid(internal_id)); + + type = clock_periph_type[internal_id]; + assert(clock_type_id_isvalid(type)); + + *mux_bits = clock_source[type][CLOCK_MAX_MUX]; + + if (type == CLOCK_TYPE_PCMT16) + *divider_bits = 16; + else + *divider_bits = 8; + + for (mux = 0; mux < CLOCK_MAX_MUX; mux++) + if (clock_source[type][mux] == parent) + return mux; + + /* if we get here, either us or the caller has made a mistake */ + printf("Caller requested bad clock: periph=%d, parent=%d\n", periph_id, + parent); + return -1; +} + +void clock_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *clk; + u32 reg; + + /* Enable/disable the clock to this peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + if ((int)periph_id < (int)PERIPH_ID_VW_FIRST) + clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)]; + else + clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)]; + reg = readl(clk); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, clk); +} + +void reset_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *reset; + u32 reg; + + /* Enable/disable reset to the peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + if (periph_id < PERIPH_ID_VW_FIRST) + reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)]; + else + reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)]; + reg = readl(reset); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, reset); +} + +#ifdef CONFIG_OF_CONTROL +/* + * Convert a device tree clock ID to our peripheral ID. They are mostly + * the same but we are very cautious so we check that a valid clock ID is + * provided. + * + * @param clk_id Clock ID according to tegra114 device tree binding + * @return peripheral ID, or PERIPH_ID_NONE if the clock ID is invalid + */ +enum periph_id clk_id_to_periph_id(int clk_id) +{ + if (clk_id > PERIPH_ID_COUNT) + return PERIPH_ID_NONE; + + switch (clk_id) { + case PERIPH_ID_RESERVED3: + case PERIPH_ID_RESERVED16: + case PERIPH_ID_RESERVED24: + case PERIPH_ID_RESERVED35: + case PERIPH_ID_RESERVED43: + case PERIPH_ID_RESERVED45: + case PERIPH_ID_RESERVED56: + case PERIPH_ID_RESERVED76: + case PERIPH_ID_RESERVED77: + case PERIPH_ID_RESERVED78: + case PERIPH_ID_RESERVED83: + case PERIPH_ID_RESERVED89: + case PERIPH_ID_RESERVED91: + case PERIPH_ID_RESERVED93: + case PERIPH_ID_RESERVED94: + case PERIPH_ID_RESERVED95: + return PERIPH_ID_NONE; + default: + return clk_id; + } +} +#endif /* CONFIG_OF_CONTROL */ + +void clock_early_init(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + + tegra30_set_up_pllp(); + + /* + * PLLC output frequency set to 600Mhz + * PLLD output frequency set to 925Mhz + */ + switch (clock_get_osc_freq()) { + case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */ + clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8); + clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12); + break; + + case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */ + clock_set_rate(CLOCK_ID_CGENERAL, 600, 26, 0, 8); + clock_set_rate(CLOCK_ID_DISPLAY, 925, 26, 0, 12); + break; + + case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */ + clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8); + clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12); + break; + case CLOCK_OSC_FREQ_19_2: + default: + /* + * These are not supported. It is too early to print a + * message and the UART likely won't work anyway due to the + * oscillator being wrong. + */ + break; + } + + /* PLLC_MISC2: Set dynramp_stepA/B. MISC2 maps to pll_out[1] */ + writel(0x00561600, &clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_out[1]); + + /* PLLC_MISC: Set LOCK_ENABLE */ + writel(0x01000000, &clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc); + udelay(2); + + /* PLLD_MISC: Set CLKENABLE, CPCON 12, LFCON 1 */ + writel(0x40000C10, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc); + udelay(2); +} + +void arch_timer_init(void) +{ + struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE; + u32 freq, val; + + freq = clock_get_rate(CLOCK_ID_OSC); + debug("%s: osc freq is %dHz [0x%08X]\n", __func__, freq, freq); + + /* ARM CNTFRQ */ + asm("mcr p15, 0, %0, c14, c0, 0\n" : : "r" (freq)); + + /* Only T114 has the System Counter regs */ + debug("%s: setting CNTFID0 to 0x%08X\n", __func__, freq); + writel(freq, &sysctr->cntfid0); + + val = readl(&sysctr->cntcr); + val |= TSC_CNTCR_ENABLE | TSC_CNTCR_HDBG; + writel(val, &sysctr->cntcr); + debug("%s: TSC CNTCR = 0x%08X\n", __func__, val); +} diff --git a/arch/arm/mach-tegra/tegra114/cpu.c b/arch/arm/mach-tegra/tegra114/cpu.c new file mode 100644 index 0000000000..18dc1af1b4 --- /dev/null +++ b/arch/arm/mach-tegra/tegra114/cpu.c @@ -0,0 +1,310 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/flow.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/pmc.h> +#include "../cpu.h" + +/* Tegra114-specific CPU init code */ +static void enable_cpu_power_rail(void) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + debug("enable_cpu_power_rail entry\n"); + + /* un-tristate PWR_I2C SCL/SDA, rest of the defaults are correct */ + pinmux_tristate_disable(PMUX_PINGRP_PWR_I2C_SCL_PZ6); + pinmux_tristate_disable(PMUX_PINGRP_PWR_I2C_SDA_PZ7); + + /* + * Set CPUPWRGOOD_TIMER - APB clock is 1/2 of SCLK (102MHz), + * set it for 25ms (102MHz * .025) + */ + reg = 0x26E8F0; + writel(reg, &pmc->pmc_cpupwrgood_timer); + + /* Set polarity to 0 (normal) and enable CPUPWRREQ_OE */ + clrbits_le32(&pmc->pmc_cntrl, CPUPWRREQ_POL); + setbits_le32(&pmc->pmc_cntrl, CPUPWRREQ_OE); + + /* + * Set CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2_0_CAR2PMC_CPU_ACK_WIDTH + * to 408 to satisfy the requirement of having at least 16 CPU clock + * cycles before clamp removal. + */ + + clrbits_le32(&clkrst->crc_cpu_softrst_ctrl2, 0xFFF); + setbits_le32(&clkrst->crc_cpu_softrst_ctrl2, 408); +} + +static void enable_cpu_clocks(void) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + debug("enable_cpu_clocks entry\n"); + + /* Wait for PLL-X to lock */ + do { + reg = readl(&clkrst->crc_pll_simple[SIMPLE_PLLX].pll_base); + } while ((reg & PLL_LOCK_MASK) == 0); + + /* Wait until all clocks are stable */ + udelay(PLL_STABILIZATION_DELAY); + + writel(CCLK_BURST_POLICY, &clkrst->crc_cclk_brst_pol); + writel(SUPER_CCLK_DIVIDER, &clkrst->crc_super_cclk_div); + + /* Always enable the main CPU complex clocks */ + clock_enable(PERIPH_ID_CPU); + clock_enable(PERIPH_ID_CPULP); + clock_enable(PERIPH_ID_CPUG); +} + +static void remove_cpu_resets(void) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + debug("remove_cpu_resets entry\n"); + /* Take the slow non-CPU partition out of reset */ + reg = readl(&clkrst->crc_rst_cpulp_cmplx_clr); + writel((reg | CLR_NONCPURESET), &clkrst->crc_rst_cpulp_cmplx_clr); + + /* Take the fast non-CPU partition out of reset */ + reg = readl(&clkrst->crc_rst_cpug_cmplx_clr); + writel((reg | CLR_NONCPURESET), &clkrst->crc_rst_cpug_cmplx_clr); + + /* Clear the SW-controlled reset of the slow cluster */ + reg = readl(&clkrst->crc_rst_cpulp_cmplx_clr); + reg |= (CLR_CPURESET0+CLR_DBGRESET0+CLR_CORERESET0+CLR_CXRESET0); + writel(reg, &clkrst->crc_rst_cpulp_cmplx_clr); + + /* Clear the SW-controlled reset of the fast cluster */ + reg = readl(&clkrst->crc_rst_cpug_cmplx_clr); + reg |= (CLR_CPURESET0+CLR_DBGRESET0+CLR_CORERESET0+CLR_CXRESET0); + reg |= (CLR_CPURESET1+CLR_DBGRESET1+CLR_CORERESET1+CLR_CXRESET1); + reg |= (CLR_CPURESET2+CLR_DBGRESET2+CLR_CORERESET2+CLR_CXRESET2); + reg |= (CLR_CPURESET3+CLR_DBGRESET3+CLR_CORERESET3+CLR_CXRESET3); + writel(reg, &clkrst->crc_rst_cpug_cmplx_clr); +} + +/** + * The T114 requires some special clock initialization, including setting up + * the DVC I2C, turning on MSELECT and selecting the G CPU cluster + */ +void t114_init_clocks(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE; + u32 val; + + debug("t114_init_clocks entry\n"); + + /* Set active CPU cluster to G */ + clrbits_le32(&flow->cluster_control, 1); + + writel(SUPER_SCLK_ENB_MASK, &clkrst->crc_super_sclk_div); + + debug("Setting up PLLX\n"); + init_pllx(); + + val = (1 << CLK_SYS_RATE_AHB_RATE_SHIFT); + writel(val, &clkrst->crc_clk_sys_rate); + + /* Enable clocks to required peripherals. TBD - minimize this list */ + debug("Enabling clocks\n"); + + clock_set_enable(PERIPH_ID_CACHE2, 1); + clock_set_enable(PERIPH_ID_GPIO, 1); + clock_set_enable(PERIPH_ID_TMR, 1); + clock_set_enable(PERIPH_ID_RTC, 1); + clock_set_enable(PERIPH_ID_CPU, 1); + clock_set_enable(PERIPH_ID_EMC, 1); + clock_set_enable(PERIPH_ID_I2C5, 1); + clock_set_enable(PERIPH_ID_FUSE, 1); + clock_set_enable(PERIPH_ID_PMC, 1); + clock_set_enable(PERIPH_ID_APBDMA, 1); + clock_set_enable(PERIPH_ID_MEM, 1); + clock_set_enable(PERIPH_ID_IRAMA, 1); + clock_set_enable(PERIPH_ID_IRAMB, 1); + clock_set_enable(PERIPH_ID_IRAMC, 1); + clock_set_enable(PERIPH_ID_IRAMD, 1); + clock_set_enable(PERIPH_ID_CORESIGHT, 1); + clock_set_enable(PERIPH_ID_MSELECT, 1); + clock_set_enable(PERIPH_ID_EMC1, 1); + clock_set_enable(PERIPH_ID_MC1, 1); + clock_set_enable(PERIPH_ID_DVFS, 1); + + /* + * Set MSELECT clock source as PLLP (00), and ask for a clock + * divider that would set the MSELECT clock at 102MHz for a + * PLLP base of 408MHz. + */ + clock_ll_set_source_divisor(PERIPH_ID_MSELECT, 0, + CLK_DIVIDER(NVBL_PLLP_KHZ, 102000)); + + /* I2C5 (DVC) gets CLK_M and a divisor of 17 */ + clock_ll_set_source_divisor(PERIPH_ID_I2C5, 3, 16); + + /* Give clocks time to stabilize */ + udelay(1000); + + /* Take required peripherals out of reset */ + debug("Taking periphs out of reset\n"); + reset_set_enable(PERIPH_ID_CACHE2, 0); + reset_set_enable(PERIPH_ID_GPIO, 0); + reset_set_enable(PERIPH_ID_TMR, 0); + reset_set_enable(PERIPH_ID_COP, 0); + reset_set_enable(PERIPH_ID_EMC, 0); + reset_set_enable(PERIPH_ID_I2C5, 0); + reset_set_enable(PERIPH_ID_FUSE, 0); + reset_set_enable(PERIPH_ID_APBDMA, 0); + reset_set_enable(PERIPH_ID_MEM, 0); + reset_set_enable(PERIPH_ID_CORESIGHT, 0); + reset_set_enable(PERIPH_ID_MSELECT, 0); + reset_set_enable(PERIPH_ID_EMC1, 0); + reset_set_enable(PERIPH_ID_MC1, 0); + reset_set_enable(PERIPH_ID_DVFS, 0); + + debug("t114_init_clocks exit\n"); +} + +static bool is_partition_powered(u32 partid) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 reg; + + /* Get power gate status */ + reg = readl(&pmc->pmc_pwrgate_status); + return !!(reg & (1 << partid)); +} + +static bool is_clamp_enabled(u32 partid) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 reg; + + /* Get clamp status. */ + reg = readl(&pmc->pmc_clamp_status); + return !!(reg & (1 << partid)); +} + +static void power_partition(u32 partid) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + + debug("%s: part ID = %08X\n", __func__, partid); + /* Is the partition already on? */ + if (!is_partition_powered(partid)) { + /* No, toggle the partition power state (OFF -> ON) */ + debug("power_partition, toggling state\n"); + writel(START_CP | partid, &pmc->pmc_pwrgate_toggle); + + /* Wait for the power to come up */ + while (!is_partition_powered(partid)) + ; + + /* Wait for the clamp status to be cleared */ + while (is_clamp_enabled(partid)) + ; + + /* Give I/O signals time to stabilize */ + udelay(IO_STABILIZATION_DELAY); + } +} + +void powerup_cpus(void) +{ + debug("powerup_cpus entry\n"); + + /* We boot to the fast cluster */ + debug("powerup_cpus entry: G cluster\n"); + /* Power up the fast cluster rail partition */ + power_partition(CRAIL); + + /* Power up the fast cluster non-CPU partition */ + power_partition(C0NC); + + /* Power up the fast cluster CPU0 partition */ + power_partition(CE0); +} + +void start_cpu(u32 reset_vector) +{ + u32 imme, inst; + + debug("start_cpu entry, reset_vector = %x\n", reset_vector); + + t114_init_clocks(); + + /* Enable VDD_CPU */ + enable_cpu_power_rail(); + + /* Get the CPU(s) running */ + enable_cpu_clocks(); + + /* Enable CoreSight */ + clock_enable_coresight(1); + + /* Take CPU(s) out of reset */ + remove_cpu_resets(); + + /* Set the entry point for CPU execution from reset */ + + /* + * A01P with patched boot ROM; vector hard-coded to 0x4003fffc. + * See nvbug 1193357 for details. + */ + + /* mov r0, #lsb(reset_vector) */ + imme = reset_vector & 0xffff; + inst = imme & 0xfff; + inst |= ((imme >> 12) << 16); + inst |= 0xe3000000; + writel(inst, 0x4003fff0); + + /* movt r0, #msb(reset_vector) */ + imme = (reset_vector >> 16) & 0xffff; + inst = imme & 0xfff; + inst |= ((imme >> 12) << 16); + inst |= 0xe3400000; + writel(inst, 0x4003fff4); + + /* bx r0 */ + writel(0xe12fff10, 0x4003fff8); + + /* b -12 */ + imme = (u32)-20; + inst = (imme >> 2) & 0xffffff; + inst |= 0xea000000; + writel(inst, 0x4003fffc); + + /* Write to orignal location for compatibility */ + writel(reset_vector, EXCEP_VECTOR_CPU_RESET_VECTOR); + + /* If the CPU(s) don't already have power, power 'em up */ + powerup_cpus(); +} diff --git a/arch/arm/mach-tegra/tegra114/funcmux.c b/arch/arm/mach-tegra/tegra114/funcmux.c new file mode 100644 index 0000000000..52441c71e6 --- /dev/null +++ b/arch/arm/mach-tegra/tegra114/funcmux.c @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Tegra114 high-level function multiplexing */ + +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/arch/funcmux.h> +#include <asm/arch/pinmux.h> + +int funcmux_select(enum periph_id id, int config) +{ + int bad_config = config != FUNCMUX_DEFAULT; + + switch (id) { + case PERIPH_ID_UART4: + switch (config) { + case FUNCMUX_UART4_GMI: + pinmux_set_func(PMUX_PINGRP_GMI_A16_PJ7, + PMUX_FUNC_UARTD); + pinmux_set_func(PMUX_PINGRP_GMI_A17_PB0, + PMUX_FUNC_UARTD); + pinmux_set_func(PMUX_PINGRP_GMI_A18_PB1, + PMUX_FUNC_UARTD); + pinmux_set_func(PMUX_PINGRP_GMI_A19_PK7, + PMUX_FUNC_UARTD); + + pinmux_set_io(PMUX_PINGRP_GMI_A16_PJ7, PMUX_PIN_OUTPUT); + pinmux_set_io(PMUX_PINGRP_GMI_A17_PB0, PMUX_PIN_INPUT); + pinmux_set_io(PMUX_PINGRP_GMI_A18_PB1, PMUX_PIN_INPUT); + pinmux_set_io(PMUX_PINGRP_GMI_A19_PK7, PMUX_PIN_OUTPUT); + + pinmux_tristate_disable(PMUX_PINGRP_GMI_A16_PJ7); + pinmux_tristate_disable(PMUX_PINGRP_GMI_A17_PB0); + pinmux_tristate_disable(PMUX_PINGRP_GMI_A18_PB1); + pinmux_tristate_disable(PMUX_PINGRP_GMI_A19_PK7); + break; + } + break; + + /* Add other periph IDs here as needed */ + + default: + debug("%s: invalid periph_id %d", __func__, id); + return -1; + } + + if (bad_config) { + debug("%s: invalid config %d for periph_id %d", __func__, + config, id); + return -1; + } + return 0; +} diff --git a/arch/arm/mach-tegra/tegra114/pinmux.c b/arch/arm/mach-tegra/tegra114/pinmux.c new file mode 100644 index 0000000000..3e5acb93ce --- /dev/null +++ b/arch/arm/mach-tegra/tegra114/pinmux.c @@ -0,0 +1,293 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/pinmux.h> + +#define PIN(pin, f0, f1, f2, f3) \ + { \ + .funcs = { \ + PMUX_FUNC_##f0, \ + PMUX_FUNC_##f1, \ + PMUX_FUNC_##f2, \ + PMUX_FUNC_##f3, \ + }, \ + } + +#define PIN_RESERVED {} + +static const struct pmux_pingrp_desc tegra114_pingroups[] = { + /* pin, f0, f1, f2, f3 */ + /* Offset 0x3000 */ + PIN(ULPI_DATA0_PO1, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA1_PO2, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA2_PO3, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA3_PO4, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA4_PO5, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA5_PO6, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA6_PO7, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA7_PO0, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_CLK_PY0, SPI1, SPI5, UARTD, ULPI), + PIN(ULPI_DIR_PY1, SPI1, SPI5, UARTD, ULPI), + PIN(ULPI_NXT_PY2, SPI1, SPI5, UARTD, ULPI), + PIN(ULPI_STP_PY3, SPI1, SPI5, UARTD, ULPI), + PIN(DAP3_FS_PP0, I2S2, SPI5, DISPLAYA, DISPLAYB), + PIN(DAP3_DIN_PP1, I2S2, SPI5, DISPLAYA, DISPLAYB), + PIN(DAP3_DOUT_PP2, I2S2, SPI5, DISPLAYA, DISPLAYB), + PIN(DAP3_SCLK_PP3, I2S2, SPI5, DISPLAYA, DISPLAYB), + PIN(PV0, USB, RSVD2, RSVD3, RSVD4), + PIN(PV1, RSVD1, RSVD2, RSVD3, RSVD4), + PIN(SDMMC1_CLK_PZ0, SDMMC1, CLK12, RSVD3, RSVD4), + PIN(SDMMC1_CMD_PZ1, SDMMC1, SPDIF, SPI4, UARTA), + PIN(SDMMC1_DAT3_PY4, SDMMC1, SPDIF, SPI4, UARTA), + PIN(SDMMC1_DAT2_PY5, SDMMC1, PWM0, SPI4, UARTA), + PIN(SDMMC1_DAT1_PY6, SDMMC1, PWM1, SPI4, UARTA), + PIN(SDMMC1_DAT0_PY7, SDMMC1, RSVD2, SPI4, UARTA), + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3068 */ + PIN(CLK2_OUT_PW5, EXTPERIPH2, RSVD2, RSVD3, RSVD4), + PIN(CLK2_REQ_PCC5, DAP, RSVD2, RSVD3, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3110 */ + PIN(HDMI_INT_PN7, RSVD1, RSVD2, RSVD3, RSVD4), + PIN(DDC_SCL_PV4, I2C4, RSVD2, RSVD3, RSVD4), + PIN(DDC_SDA_PV5, I2C4, RSVD2, RSVD3, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3164 */ + PIN(UART2_RXD_PC3, IRDA, SPDIF, UARTA, SPI4), + PIN(UART2_TXD_PC2, IRDA, SPDIF, UARTA, SPI4), + PIN(UART2_RTS_N_PJ6, UARTA, UARTB, RSVD3, SPI4), + PIN(UART2_CTS_N_PJ5, UARTA, UARTB, RSVD3, SPI4), + PIN(UART3_TXD_PW6, UARTC, RSVD2, RSVD3, SPI4), + PIN(UART3_RXD_PW7, UARTC, RSVD2, RSVD3, SPI4), + PIN(UART3_CTS_N_PA1, UARTC, SDMMC1, DTV, SPI4), + PIN(UART3_RTS_N_PC0, UARTC, PWM0, DTV, DISPLAYA), + PIN(PU0, OWR, UARTA, RSVD3, RSVD4), + PIN(PU1, RSVD1, UARTA, RSVD3, RSVD4), + PIN(PU2, RSVD1, UARTA, RSVD3, RSVD4), + PIN(PU3, PWM0, UARTA, DISPLAYA, DISPLAYB), + PIN(PU4, PWM1, UARTA, DISPLAYA, DISPLAYB), + PIN(PU5, PWM2, UARTA, DISPLAYA, DISPLAYB), + PIN(PU6, PWM3, UARTA, USB, DISPLAYB), + PIN(GEN1_I2C_SDA_PC5, I2C1, RSVD2, RSVD3, RSVD4), + PIN(GEN1_I2C_SCL_PC4, I2C1, RSVD2, RSVD3, RSVD4), + PIN(DAP4_FS_PP4, I2S3, RSVD2, DTV, RSVD4), + PIN(DAP4_DIN_PP5, I2S3, RSVD2, RSVD3, RSVD4), + PIN(DAP4_DOUT_PP6, I2S3, RSVD2, DTV, RSVD4), + PIN(DAP4_SCLK_PP7, I2S3, RSVD2, RSVD3, RSVD4), + PIN(CLK3_OUT_PEE0, EXTPERIPH3, RSVD2, RSVD3, RSVD4), + PIN(CLK3_REQ_PEE1, DEV3, RSVD2, RSVD3, RSVD4), + PIN(GMI_WP_N_PC7, RSVD1, NAND, GMI, GMI_ALT), + PIN(GMI_IORDY_PI5, SDMMC2, RSVD2, GMI, TRACE), + PIN(GMI_WAIT_PI7, SPI4, NAND, GMI, DTV), + PIN(GMI_ADV_N_PK0, RSVD1, NAND, GMI, TRACE), + PIN(GMI_CLK_PK1, SDMMC2, NAND, GMI, TRACE), + PIN(GMI_CS0_N_PJ0, RSVD1, NAND, GMI, USB), + PIN(GMI_CS1_N_PJ2, RSVD1, NAND, GMI, SOC), + PIN(GMI_CS2_N_PK3, SDMMC2, NAND, GMI, TRACE), + PIN(GMI_CS3_N_PK4, SDMMC2, NAND, GMI, GMI_ALT), + PIN(GMI_CS4_N_PK2, USB, NAND, GMI, TRACE), + PIN(GMI_CS6_N_PI3, NAND, NAND_ALT, GMI, SPI4), + PIN(GMI_CS7_N_PI6, NAND, NAND_ALT, GMI, SDMMC2), + PIN(GMI_AD0_PG0, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD1_PG1, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD2_PG2, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD3_PG3, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD4_PG4, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD5_PG5, RSVD1, NAND, GMI, SPI4), + PIN(GMI_AD6_PG6, RSVD1, NAND, GMI, SPI4), + PIN(GMI_AD7_PG7, RSVD1, NAND, GMI, SPI4), + PIN(GMI_AD8_PH0, PWM0, NAND, GMI, DTV), + PIN(GMI_AD9_PH1, PWM1, NAND, GMI, CLDVFS), + PIN(GMI_AD10_PH2, PWM2, NAND, GMI, CLDVFS), + PIN(GMI_AD11_PH3, PWM3, NAND, GMI, USB), + PIN(GMI_AD12_PH4, SDMMC2, NAND, GMI, RSVD4), + PIN(GMI_AD13_PH5, SDMMC2, NAND, GMI, RSVD4), + PIN(GMI_AD14_PH6, SDMMC2, NAND, GMI, DTV), + PIN(GMI_AD15_PH7, SDMMC2, NAND, GMI, DTV), + PIN(GMI_A16_PJ7, UARTD, TRACE, GMI, GMI_ALT), + PIN(GMI_A17_PB0, UARTD, RSVD2, GMI, TRACE), + PIN(GMI_A18_PB1, UARTD, RSVD2, GMI, TRACE), + PIN(GMI_A19_PK7, UARTD, SPI4, GMI, TRACE), + PIN(GMI_WR_N_PI0, RSVD1, NAND, GMI, SPI4), + PIN(GMI_OE_N_PI1, RSVD1, NAND, GMI, SOC), + PIN(GMI_DQS_P_PJ3, SDMMC2, NAND, GMI, TRACE), + PIN(GMI_RST_N_PI4, NAND, NAND_ALT, GMI, RSVD4), + PIN(GEN2_I2C_SCL_PT5, I2C2, RSVD2, GMI, RSVD4), + PIN(GEN2_I2C_SDA_PT6, I2C2, RSVD2, GMI, RSVD4), + PIN(SDMMC4_CLK_PCC4, SDMMC4, RSVD2, GMI, RSVD4), + PIN(SDMMC4_CMD_PT7, SDMMC4, RSVD2, GMI, RSVD4), + PIN(SDMMC4_DAT0_PAA0, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT1_PAA1, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT2_PAA2, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT3_PAA3, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT4_PAA4, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT5_PAA5, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT6_PAA6, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT7_PAA7, SDMMC4, RSVD2, GMI, RSVD4), + PIN_RESERVED, + /* Offset 0x3284 */ + PIN(CAM_MCLK_PCC0, VI, VI_ALT1, VI_ALT3, RSVD4), + PIN(PCC1, I2S4, RSVD2, RSVD3, RSVD4), + PIN(PBB0, I2S4, VI, VI_ALT1, VI_ALT3), + PIN(CAM_I2C_SCL_PBB1, VGP1, I2C3, RSVD3, RSVD4), + PIN(CAM_I2C_SDA_PBB2, VGP2, I2C3, RSVD3, RSVD4), + PIN(PBB3, VGP3, DISPLAYA, DISPLAYB, RSVD4), + PIN(PBB4, VGP4, DISPLAYA, DISPLAYB, RSVD4), + PIN(PBB5, VGP5, DISPLAYA, DISPLAYB, RSVD4), + PIN(PBB6, VGP6, DISPLAYA, DISPLAYB, RSVD4), + PIN(PBB7, I2S4, RSVD2, RSVD3, RSVD4), + PIN(PCC2, I2S4, RSVD2, RSVD3, RSVD4), + PIN(JTAG_RTCK, RTCK, RSVD2, RSVD3, RSVD4), + PIN(PWR_I2C_SCL_PZ6, I2CPWR, RSVD2, RSVD3, RSVD4), + PIN(PWR_I2C_SDA_PZ7, I2CPWR, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW0_PR0, KBC, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW1_PR1, KBC, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW2_PR2, KBC, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW3_PR3, KBC, DISPLAYA, RSVD3, DISPLAYB), + PIN(KB_ROW4_PR4, KBC, DISPLAYA, SPI2, DISPLAYB), + PIN(KB_ROW5_PR5, KBC, DISPLAYA, SPI2, DISPLAYB), + PIN(KB_ROW6_PR6, KBC, DISPLAYA, DISPLAYA_ALT, DISPLAYB), + PIN(KB_ROW7_PR7, KBC, RSVD2, CLDVFS, UARTA), + PIN(KB_ROW8_PS0, KBC, RSVD2, CLDVFS, UARTA), + PIN(KB_ROW9_PS1, KBC, RSVD2, RSVD3, UARTA), + PIN(KB_ROW10_PS2, KBC, RSVD2, RSVD3, UARTA), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x32fc */ + PIN(KB_COL0_PQ0, KBC, USB, SPI2, EMC_DLL), + PIN(KB_COL1_PQ1, KBC, RSVD2, SPI2, EMC_DLL), + PIN(KB_COL2_PQ2, KBC, RSVD2, SPI2, RSVD4), + PIN(KB_COL3_PQ3, KBC, DISPLAYA, PWM2, UARTA), + PIN(KB_COL4_PQ4, KBC, OWR, SDMMC3, UARTA), + PIN(KB_COL5_PQ5, KBC, RSVD2, SDMMC1, RSVD4), + PIN(KB_COL6_PQ6, KBC, RSVD2, SPI2, RSVD4), + PIN(KB_COL7_PQ7, KBC, RSVD2, SPI2, RSVD4), + PIN(CLK_32K_OUT_PA0, BLINK, SOC, RSVD3, RSVD4), + PIN(SYS_CLK_REQ_PZ5, SYSCLK, RSVD2, RSVD3, RSVD4), + PIN(CORE_PWR_REQ, PWRON, RSVD2, RSVD3, RSVD4), + PIN(CPU_PWR_REQ, CPU, RSVD2, RSVD3, RSVD4), + PIN(PWR_INT_N, PMI, RSVD2, RSVD3, RSVD4), + PIN(CLK_32K_IN, CLK, RSVD2, RSVD3, RSVD4), + PIN(OWR, OWR, RSVD2, RSVD3, RSVD4), + PIN(DAP1_FS_PN0, I2S0, HDA, GMI, RSVD4), + PIN(DAP1_DIN_PN1, I2S0, HDA, GMI, RSVD4), + PIN(DAP1_DOUT_PN2, I2S0, HDA, GMI, RSVD4), + PIN(DAP1_SCLK_PN3, I2S0, HDA, GMI, RSVD4), + PIN(CLK1_REQ_PEE2, DAP, DAP1, RSVD3, RSVD4), + PIN(CLK1_OUT_PW4, EXTPERIPH1, DAP2, RSVD3, RSVD4), + PIN(SPDIF_IN_PK6, SPDIF, USB, RSVD3, RSVD4), + PIN(SPDIF_OUT_PK5, SPDIF, RSVD2, RSVD3, RSVD4), + PIN(DAP2_FS_PA2, I2S1, HDA, RSVD3, RSVD4), + PIN(DAP2_DIN_PA4, I2S1, HDA, RSVD3, RSVD4), + PIN(DAP2_DOUT_PA5, I2S1, HDA, RSVD3, RSVD4), + PIN(DAP2_SCLK_PA3, I2S1, HDA, RSVD3, RSVD4), + PIN(DVFS_PWM_PX0, SPI6, CLDVFS, RSVD3, RSVD4), + PIN(GPIO_X1_AUD_PX1, SPI6, RSVD2, RSVD3, RSVD4), + PIN(GPIO_X3_AUD_PX3, SPI6, SPI1, RSVD3, RSVD4), + PIN(DVFS_CLK_PX2, SPI6, CLDVFS, RSVD3, RSVD4), + PIN(GPIO_X4_AUD_PX4, RSVD1, SPI1, SPI2, DAP2), + PIN(GPIO_X5_AUD_PX5, RSVD1, SPI1, SPI2, RSVD4), + PIN(GPIO_X6_AUD_PX6, SPI6, SPI1, SPI2, RSVD4), + PIN(GPIO_X7_AUD_PX7, RSVD1, SPI1, SPI2, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3390 */ + PIN(SDMMC3_CLK_PA6, SDMMC3, RSVD2, RSVD3, SPI3), + PIN(SDMMC3_CMD_PA7, SDMMC3, PWM3, UARTA, SPI3), + PIN(SDMMC3_DAT0_PB7, SDMMC3, RSVD2, RSVD3, SPI3), + PIN(SDMMC3_DAT1_PB6, SDMMC3, PWM2, UARTA, SPI3), + PIN(SDMMC3_DAT2_PB5, SDMMC3, PWM1, DISPLAYA, SPI3), + PIN(SDMMC3_DAT3_PB4, SDMMC3, PWM0, DISPLAYB, SPI3), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x33e0 */ + PIN(HDMI_CEC_PEE3, CEC, SDMMC3, RSVD3, SOC), + PIN(SDMMC1_WP_N_PV3, SDMMC1, CLK12, SPI4, UARTA), + PIN(SDMMC3_CD_N_PV2, SDMMC3, OWR, RSVD3, RSVD4), + PIN(GPIO_W2_AUD_PW2, SPI6, RSVD2, SPI2, I2C1), + PIN(GPIO_W3_AUD_PW3, SPI6, SPI1, SPI2, I2C1), + PIN(USB_VBUS_EN0_PN4, USB, RSVD2, RSVD3, RSVD4), + PIN(USB_VBUS_EN1_PN5, USB, RSVD2, RSVD3, RSVD4), + PIN(SDMMC3_CLK_LB_IN_PEE5, SDMMC3, RSVD2, RSVD3, RSVD4), + PIN(SDMMC3_CLK_LB_OUT_PEE4, SDMMC3, RSVD2, RSVD3, RSVD4), + PIN(GMI_CLK_LB, SDMMC2, NAND, GMI, RSVD4), + PIN(RESET_OUT_N, RSVD1, RSVD2, RSVD3, RESET_OUT_N), +}; +const struct pmux_pingrp_desc *tegra_soc_pingroups = tegra114_pingroups; diff --git a/arch/arm/mach-tegra/tegra124/Kconfig b/arch/arm/mach-tegra/tegra124/Kconfig new file mode 100644 index 0000000000..88f627c932 --- /dev/null +++ b/arch/arm/mach-tegra/tegra124/Kconfig @@ -0,0 +1,30 @@ +if TEGRA124 + +choice + prompt "Tegra124 board select" + +config TARGET_JETSON_TK1 + bool "NVIDIA Tegra124 Jetson TK1 board" + +config TARGET_NYAN_BIG + bool "Google/NVIDIA Nyan-big Chrombook" + help + Nyan Big is a Tegra124 clamshell board that is very similar + to venice2, but it has a different panel, the sdcard CD and WP + sense are flipped, and it has a different revision of the AS3722 + PMIC. The retail name is the Acer Chromebook 13 CB5-311-T7NN + (13.3-inch HD, NVIDIA Tegra K1, 2GB). + +config TARGET_VENICE2 + bool "NVIDIA Tegra124 Venice2" + +endchoice + +config SYS_SOC + default "tegra124" + +source "board/nvidia/jetson-tk1/Kconfig" +source "board/nvidia/nyan-big/Kconfig" +source "board/nvidia/venice2/Kconfig" + +endif diff --git a/arch/arm/mach-tegra/tegra124/Makefile b/arch/arm/mach-tegra/tegra124/Makefile new file mode 100644 index 0000000000..ef2da29f30 --- /dev/null +++ b/arch/arm/mach-tegra/tegra124/Makefile @@ -0,0 +1,13 @@ +# +# (C) Copyright 2013-2014 +# NVIDIA Corporation <www.nvidia.com> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-$(CONFIG_SPL_BUILD) += cpu.o + +obj-y += clock.o +obj-y += funcmux.o +obj-y += pinmux.o +obj-y += xusb-padctl.o diff --git a/arch/arm/mach-tegra/tegra124/clock.c b/arch/arm/mach-tegra/tegra124/clock.c new file mode 100644 index 0000000000..fc8bd194dd --- /dev/null +++ b/arch/arm/mach-tegra/tegra124/clock.c @@ -0,0 +1,935 @@ +/* + * (C) Copyright 2013 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* Tegra124 Clock control functions */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/sysctr.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/timer.h> +#include <div64.h> +#include <fdtdec.h> + +/* + * Clock types that we can use as a source. The Tegra124 has muxes for the + * peripheral clocks, and in most cases there are four options for the clock + * source. This gives us a clock 'type' and exploits what commonality exists + * in the device. + * + * Letters are obvious, except for T which means CLK_M, and S which means the + * clock derived from 32KHz. Beware that CLK_M (also called OSC in the + * datasheet) and PLL_M are different things. The former is the basic + * clock supplied to the SOC from an external oscillator. The latter is the + * memory clock PLL. + * + * See definitions in clock_id in the header file. + */ +enum clock_type_id { + CLOCK_TYPE_AXPT, /* PLL_A, PLL_X, PLL_P, CLK_M */ + CLOCK_TYPE_MCPA, /* and so on */ + CLOCK_TYPE_MCPT, + CLOCK_TYPE_PCM, + CLOCK_TYPE_PCMT, + CLOCK_TYPE_PDCT, + CLOCK_TYPE_ACPT, + CLOCK_TYPE_ASPTE, + CLOCK_TYPE_PMDACD2T, + CLOCK_TYPE_PCST, + + CLOCK_TYPE_PC2CC3M, + CLOCK_TYPE_PC2CC3S_T, + CLOCK_TYPE_PC2CC3M_T, + CLOCK_TYPE_PC2CC3M_T16, /* PC2CC3M_T, but w/16-bit divisor (I2C) */ + CLOCK_TYPE_MC2CC3P_A, + CLOCK_TYPE_M, + CLOCK_TYPE_MCPTM2C2C3, + CLOCK_TYPE_PC2CC3T_S, + CLOCK_TYPE_AC2CC3P_TS2, + + CLOCK_TYPE_COUNT, + CLOCK_TYPE_NONE = -1, /* invalid clock type */ +}; + +enum { + CLOCK_MAX_MUX = 8 /* number of source options for each clock */ +}; + +/* + * Clock source mux for each clock type. This just converts our enum into + * a list of mux sources for use by the code. + * + * Note: + * The extra column in each clock source array is used to store the mask + * bits in its register for the source. + */ +#define CLK(x) CLOCK_ID_ ## x +static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX+1] = { + { CLK(AUDIO), CLK(XCPU), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(AUDIO), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(NONE), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(DISPLAY), CLK(CGENERAL), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(AUDIO), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(AUDIO), CLK(SFROM32KHZ), CLK(PERIPH), CLK(OSC), + CLK(EPCI), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_29}, + { CLK(PERIPH), CLK(MEMORY), CLK(DISPLAY), CLK(AUDIO), + CLK(CGENERAL), CLK(DISPLAY2), CLK(OSC), CLK(NONE), + MASK_BITS_31_29}, + { CLK(PERIPH), CLK(CGENERAL), CLK(SFROM32KHZ), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_28}, + + /* Additional clock types on Tegra114+ */ + /* CLOCK_TYPE_PC2CC3M */ + { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), + CLK(MEMORY), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_29}, + /* CLOCK_TYPE_PC2CC3S_T */ + { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), + CLK(SFROM32KHZ), CLK(NONE), CLK(OSC), CLK(NONE), + MASK_BITS_31_29}, + /* CLOCK_TYPE_PC2CC3M_T */ + { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), + CLK(MEMORY), CLK(NONE), CLK(OSC), CLK(NONE), + MASK_BITS_31_29}, + /* CLOCK_TYPE_PC2CC3M_T, w/16-bit divisor (I2C) */ + { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), + CLK(MEMORY), CLK(NONE), CLK(OSC), CLK(NONE), + MASK_BITS_31_29}, + /* CLOCK_TYPE_MC2CC3P_A */ + { CLK(MEMORY), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), + CLK(PERIPH), CLK(NONE), CLK(AUDIO), CLK(NONE), + MASK_BITS_31_29}, + /* CLOCK_TYPE_M */ + { CLK(MEMORY), CLK(NONE), CLK(NONE), CLK(NONE), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + /* CLOCK_TYPE_MCPTM2C2C3 */ + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), + CLK(MEMORY2), CLK(CGENERAL2), CLK(CGENERAL3), CLK(NONE), + MASK_BITS_31_29}, + /* CLOCK_TYPE_PC2CC3T_S */ + { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), + CLK(OSC), CLK(NONE), CLK(SFROM32KHZ), CLK(NONE), + MASK_BITS_31_29}, + /* CLOCK_TYPE_AC2CC3P_TS2 */ + { CLK(AUDIO), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), + CLK(PERIPH), CLK(NONE), CLK(OSC), CLK(SRC2), + MASK_BITS_31_29}, +}; + +/* + * Clock type for each peripheral clock source. We put the name in each + * record just so it is easy to match things up + */ +#define TYPE(name, type) type +static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = { + /* 0x00 */ + TYPE(PERIPHC_I2S1, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2S2, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_OUT, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_IN, CLOCK_TYPE_PC2CC3M), + TYPE(PERIPHC_PWM, CLOCK_TYPE_PC2CC3S_T), + TYPE(PERIPHC_05h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC2, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_SBC3, CLOCK_TYPE_PC2CC3M_T), + + /* 0x08 */ + TYPE(PERIPHC_08h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_I2C1, CLOCK_TYPE_PC2CC3M_T16), + TYPE(PERIPHC_I2C5, CLOCK_TYPE_PC2CC3M_T16), + TYPE(PERIPHC_0bh, CLOCK_TYPE_NONE), + TYPE(PERIPHC_0ch, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC1, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_DISP1, CLOCK_TYPE_PMDACD2T), + TYPE(PERIPHC_DISP2, CLOCK_TYPE_PMDACD2T), + + /* 0x10 */ + TYPE(PERIPHC_10h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_11h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI, CLOCK_TYPE_MC2CC3P_A), + TYPE(PERIPHC_13h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SDMMC1, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_SDMMC2, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_16h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_17h, CLOCK_TYPE_NONE), + + /* 0x18 */ + TYPE(PERIPHC_18h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SDMMC4, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_VFIR, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_1Bh, CLOCK_TYPE_NONE), + TYPE(PERIPHC_1Ch, CLOCK_TYPE_NONE), + TYPE(PERIPHC_HSI, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_UART1, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_UART2, CLOCK_TYPE_PC2CC3M_T), + + /* 0x20 */ + TYPE(PERIPHC_HOST1X, CLOCK_TYPE_MC2CC3P_A), + TYPE(PERIPHC_21h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_22h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_HDMI, CLOCK_TYPE_PMDACD2T), + TYPE(PERIPHC_24h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_25h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_I2C2, CLOCK_TYPE_PC2CC3M_T16), + TYPE(PERIPHC_EMC, CLOCK_TYPE_MCPTM2C2C3), + + /* 0x28 */ + TYPE(PERIPHC_UART3, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_29h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI_SENSOR, CLOCK_TYPE_MC2CC3P_A), + TYPE(PERIPHC_2bh, CLOCK_TYPE_NONE), + TYPE(PERIPHC_2ch, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC4, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_I2C3, CLOCK_TYPE_PC2CC3M_T16), + TYPE(PERIPHC_SDMMC3, CLOCK_TYPE_PC2CC3M_T), + + /* 0x30 */ + TYPE(PERIPHC_UART4, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_UART5, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_VDE, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_OWR, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_NOR, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_CSITE, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_I2S0, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_DTV, CLOCK_TYPE_NONE), + + /* 0x38 */ + TYPE(PERIPHC_38h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_39h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_3ah, CLOCK_TYPE_NONE), + TYPE(PERIPHC_3bh, CLOCK_TYPE_NONE), + TYPE(PERIPHC_MSENC, CLOCK_TYPE_MC2CC3P_A), + TYPE(PERIPHC_TSEC, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_3eh, CLOCK_TYPE_NONE), + TYPE(PERIPHC_OSC, CLOCK_TYPE_NONE), + + /* 0x40 */ + TYPE(PERIPHC_40h, CLOCK_TYPE_NONE), /* start with 0x3b0 */ + TYPE(PERIPHC_MSELECT, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_TSENSOR, CLOCK_TYPE_PC2CC3T_S), + TYPE(PERIPHC_I2S3, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2S4, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2C4, CLOCK_TYPE_PC2CC3M_T16), + TYPE(PERIPHC_SBC5, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_SBC6, CLOCK_TYPE_PC2CC3M_T), + + /* 0x48 */ + TYPE(PERIPHC_AUDIO, CLOCK_TYPE_AC2CC3P_TS2), + TYPE(PERIPHC_49h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_DAM0, CLOCK_TYPE_AC2CC3P_TS2), + TYPE(PERIPHC_DAM1, CLOCK_TYPE_AC2CC3P_TS2), + TYPE(PERIPHC_DAM2, CLOCK_TYPE_AC2CC3P_TS2), + TYPE(PERIPHC_HDA2CODEC2X, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_ACTMON, CLOCK_TYPE_PC2CC3S_T), + TYPE(PERIPHC_EXTPERIPH1, CLOCK_TYPE_ASPTE), + + /* 0x50 */ + TYPE(PERIPHC_EXTPERIPH2, CLOCK_TYPE_ASPTE), + TYPE(PERIPHC_EXTPERIPH3, CLOCK_TYPE_ASPTE), + TYPE(PERIPHC_52h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_I2CSLOW, CLOCK_TYPE_PC2CC3S_T), + TYPE(PERIPHC_SYS, CLOCK_TYPE_NONE), + TYPE(PERIPHC_55h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_56h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_57h, CLOCK_TYPE_NONE), + + /* 0x58 */ + TYPE(PERIPHC_58h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_59h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_5ah, CLOCK_TYPE_NONE), + TYPE(PERIPHC_5bh, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SATAOOB, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SATA, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_HDA, CLOCK_TYPE_PC2CC3M_T), + TYPE(PERIPHC_5fh, CLOCK_TYPE_NONE), + + /* 0x60 */ + TYPE(PERIPHC_XUSB_CORE_HOST, CLOCK_TYPE_NONE), + TYPE(PERIPHC_XUSB_FALCON, CLOCK_TYPE_NONE), + TYPE(PERIPHC_XUSB_FS, CLOCK_TYPE_NONE), + TYPE(PERIPHC_XUSB_CORE_DEV, CLOCK_TYPE_NONE), + TYPE(PERIPHC_XUSB_SS, CLOCK_TYPE_NONE), + TYPE(PERIPHC_CILAB, CLOCK_TYPE_NONE), + TYPE(PERIPHC_CILCD, CLOCK_TYPE_NONE), + TYPE(PERIPHC_CILE, CLOCK_TYPE_NONE), + + /* 0x68 */ + TYPE(PERIPHC_DSIA_LP, CLOCK_TYPE_NONE), + TYPE(PERIPHC_DSIB_LP, CLOCK_TYPE_NONE), + TYPE(PERIPHC_ENTROPY, CLOCK_TYPE_NONE), + TYPE(PERIPHC_DVFS_REF, CLOCK_TYPE_NONE), + TYPE(PERIPHC_DVFS_SOC, CLOCK_TYPE_NONE), + TYPE(PERIPHC_TRACECLKIN, CLOCK_TYPE_NONE), + TYPE(PERIPHC_ADX0, CLOCK_TYPE_NONE), + TYPE(PERIPHC_AMX0, CLOCK_TYPE_NONE), + + /* 0x70 */ + TYPE(PERIPHC_EMC_LATENCY, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SOC_THERM, CLOCK_TYPE_NONE), + TYPE(PERIPHC_72h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_73h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_74h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_75h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI_SENSOR2, CLOCK_TYPE_NONE), + TYPE(PERIPHC_I2C6, CLOCK_TYPE_PC2CC3M_T16), + + /* 0x78 */ + TYPE(PERIPHC_78h, CLOCK_TYPE_NONE), + TYPE(PERIPHC_EMC_DLL, CLOCK_TYPE_MCPTM2C2C3), + TYPE(PERIPHC_HDMI_AUDIO, CLOCK_TYPE_NONE), + TYPE(PERIPHC_CLK72MHZ, CLOCK_TYPE_NONE), + TYPE(PERIPHC_ADX1, CLOCK_TYPE_AC2CC3P_TS2), + TYPE(PERIPHC_AMX1, CLOCK_TYPE_AC2CC3P_TS2), + TYPE(PERIPHC_VIC, CLOCK_TYPE_NONE), + TYPE(PERIPHC_7Fh, CLOCK_TYPE_NONE), +}; + +/* + * This array translates a periph_id to a periphc_internal_id + * + * Not present/matched up: + * uint vi_sensor; _VI_SENSOR_0, 0x1A8 + * SPDIF - which is both 0x08 and 0x0c + * + */ +#define NONE(name) (-1) +#define OFFSET(name, value) PERIPHC_ ## name +static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = { + /* Low word: 31:0 */ + NONE(CPU), + NONE(COP), + NONE(TRIGSYS), + NONE(ISPB), + NONE(RESERVED4), + NONE(TMR), + PERIPHC_UART1, + PERIPHC_UART2, /* and vfir 0x68 */ + + /* 8 */ + NONE(GPIO), + PERIPHC_SDMMC2, + PERIPHC_SPDIF_IN, + PERIPHC_I2S1, + PERIPHC_I2C1, + NONE(RESERVED13), + PERIPHC_SDMMC1, + PERIPHC_SDMMC4, + + /* 16 */ + NONE(TCW), + PERIPHC_PWM, + PERIPHC_I2S2, + NONE(RESERVED19), + PERIPHC_VI, + NONE(RESERVED21), + NONE(USBD), + NONE(ISP), + + /* 24 */ + NONE(RESERVED24), + NONE(RESERVED25), + PERIPHC_DISP2, + PERIPHC_DISP1, + PERIPHC_HOST1X, + NONE(VCP), + PERIPHC_I2S0, + NONE(CACHE2), + + /* Middle word: 63:32 */ + NONE(MEM), + NONE(AHBDMA), + NONE(APBDMA), + NONE(RESERVED35), + NONE(RESERVED36), + NONE(STAT_MON), + NONE(RESERVED38), + NONE(FUSE), + + /* 40 */ + NONE(KFUSE), + PERIPHC_SBC1, /* SBCx = SPIx */ + PERIPHC_NOR, + NONE(RESERVED43), + PERIPHC_SBC2, + NONE(XIO), + PERIPHC_SBC3, + PERIPHC_I2C5, + + /* 48 */ + NONE(DSI), + NONE(RESERVED49), + PERIPHC_HSI, + PERIPHC_HDMI, + NONE(CSI), + NONE(RESERVED53), + PERIPHC_I2C2, + PERIPHC_UART3, + + /* 56 */ + NONE(MIPI_CAL), + PERIPHC_EMC, + NONE(USB2), + NONE(USB3), + NONE(RESERVED60), + PERIPHC_VDE, + NONE(BSEA), + NONE(BSEV), + + /* Upper word 95:64 */ + NONE(RESERVED64), + PERIPHC_UART4, + PERIPHC_UART5, + PERIPHC_I2C3, + PERIPHC_SBC4, + PERIPHC_SDMMC3, + NONE(PCIE), + PERIPHC_OWR, + + /* 72 */ + NONE(AFI), + PERIPHC_CSITE, + NONE(PCIEXCLK), + NONE(AVPUCQ), + NONE(LA), + NONE(TRACECLKIN), + NONE(SOC_THERM), + NONE(DTV), + + /* 80 */ + NONE(RESERVED80), + PERIPHC_I2CSLOW, + NONE(DSIB), + PERIPHC_TSEC, + NONE(RESERVED84), + NONE(RESERVED85), + NONE(RESERVED86), + NONE(EMUCIF), + + /* 88 */ + NONE(RESERVED88), + NONE(XUSB_HOST), + NONE(RESERVED90), + PERIPHC_MSENC, + NONE(RESERVED92), + NONE(RESERVED93), + NONE(RESERVED94), + NONE(XUSB_DEV), + + /* V word: 31:0 */ + NONE(CPUG), + NONE(CPULP), + NONE(V_RESERVED2), + PERIPHC_MSELECT, + NONE(V_RESERVED4), + PERIPHC_I2S3, + PERIPHC_I2S4, + PERIPHC_I2C4, + + /* 104 */ + PERIPHC_SBC5, + PERIPHC_SBC6, + PERIPHC_AUDIO, + NONE(APBIF), + PERIPHC_DAM0, + PERIPHC_DAM1, + PERIPHC_DAM2, + PERIPHC_HDA2CODEC2X, + + /* 112 */ + NONE(ATOMICS), + NONE(V_RESERVED17), + NONE(V_RESERVED18), + NONE(V_RESERVED19), + NONE(V_RESERVED20), + NONE(V_RESERVED21), + NONE(V_RESERVED22), + PERIPHC_ACTMON, + + /* 120 */ + NONE(EXTPERIPH1), + NONE(EXTPERIPH2), + NONE(EXTPERIPH3), + NONE(OOB), + PERIPHC_SATA, + PERIPHC_HDA, + NONE(TZRAM), + NONE(SE), + + /* W word: 31:0 */ + NONE(HDA2HDMICODEC), + NONE(SATACOLD), + NONE(W_RESERVED2), + NONE(W_RESERVED3), + NONE(W_RESERVED4), + NONE(W_RESERVED5), + NONE(W_RESERVED6), + NONE(W_RESERVED7), + + /* 136 */ + NONE(CEC), + NONE(W_RESERVED9), + NONE(W_RESERVED10), + NONE(W_RESERVED11), + NONE(W_RESERVED12), + NONE(W_RESERVED13), + NONE(XUSB_PADCTL), + NONE(W_RESERVED15), + + /* 144 */ + NONE(W_RESERVED16), + NONE(W_RESERVED17), + NONE(W_RESERVED18), + NONE(W_RESERVED19), + NONE(W_RESERVED20), + NONE(ENTROPY), + NONE(DDS), + NONE(W_RESERVED23), + + /* 152 */ + NONE(DP2), + NONE(AMX0), + NONE(ADX0), + NONE(DVFS), + NONE(XUSB_SS), + NONE(W_RESERVED29), + NONE(W_RESERVED30), + NONE(W_RESERVED31), + + /* X word: 31:0 */ + NONE(SPARE), + NONE(X_RESERVED1), + NONE(X_RESERVED2), + NONE(X_RESERVED3), + NONE(CAM_MCLK), + NONE(CAM_MCLK2), + PERIPHC_I2C6, + NONE(X_RESERVED7), + + /* 168 */ + NONE(X_RESERVED8), + NONE(X_RESERVED9), + NONE(X_RESERVED10), + NONE(VIM2_CLK), + NONE(X_RESERVED12), + NONE(X_RESERVED13), + NONE(EMC_DLL), + NONE(X_RESERVED15), + + /* 176 */ + NONE(HDMI_AUDIO), + NONE(CLK72MHZ), + NONE(VIC), + NONE(X_RESERVED19), + NONE(ADX1), + NONE(DPAUX), + NONE(SOR0), + NONE(X_RESERVED23), + + /* 184 */ + NONE(GPU), + NONE(AMX1), + NONE(X_RESERVED26), + NONE(X_RESERVED27), + NONE(X_RESERVED28), + NONE(X_RESERVED29), + NONE(X_RESERVED30), + NONE(X_RESERVED31), +}; + +/* + * Get the oscillator frequency, from the corresponding hardware configuration + * field. Note that Tegra30+ support 3 new higher freqs, but we map back + * to the old T20 freqs. Support for the higher oscillators is TBD. + */ +enum clock_osc_freq clock_get_osc_freq(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + reg = readl(&clkrst->crc_osc_ctrl); + reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; + + if (reg & 1) /* one of the newer freqs */ + printf("Warning: OSC_FREQ is unsupported! (%d)\n", reg); + + return reg >> 2; /* Map to most common (T20) freqs */ +} + +/* Returns a pointer to the clock source register for a peripheral */ +u32 *get_periph_source_reg(enum periph_id periph_id) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + enum periphc_internal_id internal_id; + + /* Coresight is a special case */ + if (periph_id == PERIPH_ID_CSI) + return &clkrst->crc_clk_src[PERIPH_ID_CSI+1]; + + assert(periph_id >= PERIPH_ID_FIRST && periph_id < PERIPH_ID_COUNT); + internal_id = periph_id_to_internal_id[periph_id]; + assert(internal_id != -1); + if (internal_id >= PERIPHC_VW_FIRST) { + internal_id -= PERIPHC_VW_FIRST; + return &clkrst->crc_clk_src_vw[internal_id]; + } else { + return &clkrst->crc_clk_src[internal_id]; + } +} + +/** + * Given a peripheral ID and the required source clock, this returns which + * value should be programmed into the source mux for that peripheral. + * + * There is special code here to handle the one source type with 5 sources. + * + * @param periph_id peripheral to start + * @param source PLL id of required parent clock + * @param mux_bits Set to number of bits in mux register: 2 or 4 + * @param divider_bits Set to number of divider bits (8 or 16) + * @return mux value (0-4, or -1 if not found) + */ +int get_periph_clock_source(enum periph_id periph_id, + enum clock_id parent, int *mux_bits, int *divider_bits) +{ + enum clock_type_id type; + enum periphc_internal_id internal_id; + int mux; + + assert(clock_periph_id_isvalid(periph_id)); + + internal_id = periph_id_to_internal_id[periph_id]; + assert(periphc_internal_id_isvalid(internal_id)); + + type = clock_periph_type[internal_id]; + assert(clock_type_id_isvalid(type)); + + *mux_bits = clock_source[type][CLOCK_MAX_MUX]; + + if (type == CLOCK_TYPE_PC2CC3M_T16) + *divider_bits = 16; + else + *divider_bits = 8; + + for (mux = 0; mux < CLOCK_MAX_MUX; mux++) + if (clock_source[type][mux] == parent) + return mux; + + /* if we get here, either us or the caller has made a mistake */ + printf("Caller requested bad clock: periph=%d, parent=%d\n", periph_id, + parent); + return -1; +} + +void clock_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *clk; + u32 reg; + + /* Enable/disable the clock to this peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + if ((int)periph_id < (int)PERIPH_ID_VW_FIRST) + clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)]; + else + clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)]; + reg = readl(clk); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, clk); +} + +void reset_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *reset; + u32 reg; + + /* Enable/disable reset to the peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + if (periph_id < PERIPH_ID_VW_FIRST) + reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)]; + else + reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)]; + reg = readl(reset); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, reset); +} + +#ifdef CONFIG_OF_CONTROL +/* + * Convert a device tree clock ID to our peripheral ID. They are mostly + * the same but we are very cautious so we check that a valid clock ID is + * provided. + * + * @param clk_id Clock ID according to tegra124 device tree binding + * @return peripheral ID, or PERIPH_ID_NONE if the clock ID is invalid + */ +enum periph_id clk_id_to_periph_id(int clk_id) +{ + if (clk_id > PERIPH_ID_COUNT) + return PERIPH_ID_NONE; + + switch (clk_id) { + case PERIPH_ID_RESERVED4: + case PERIPH_ID_RESERVED25: + case PERIPH_ID_RESERVED35: + case PERIPH_ID_RESERVED36: + case PERIPH_ID_RESERVED38: + case PERIPH_ID_RESERVED43: + case PERIPH_ID_RESERVED49: + case PERIPH_ID_RESERVED53: + case PERIPH_ID_RESERVED64: + case PERIPH_ID_RESERVED84: + case PERIPH_ID_RESERVED85: + case PERIPH_ID_RESERVED86: + case PERIPH_ID_RESERVED88: + case PERIPH_ID_RESERVED90: + case PERIPH_ID_RESERVED92: + case PERIPH_ID_RESERVED93: + case PERIPH_ID_RESERVED94: + case PERIPH_ID_V_RESERVED2: + case PERIPH_ID_V_RESERVED4: + case PERIPH_ID_V_RESERVED17: + case PERIPH_ID_V_RESERVED18: + case PERIPH_ID_V_RESERVED19: + case PERIPH_ID_V_RESERVED20: + case PERIPH_ID_V_RESERVED21: + case PERIPH_ID_V_RESERVED22: + case PERIPH_ID_W_RESERVED2: + case PERIPH_ID_W_RESERVED3: + case PERIPH_ID_W_RESERVED4: + case PERIPH_ID_W_RESERVED5: + case PERIPH_ID_W_RESERVED6: + case PERIPH_ID_W_RESERVED7: + case PERIPH_ID_W_RESERVED9: + case PERIPH_ID_W_RESERVED10: + case PERIPH_ID_W_RESERVED11: + case PERIPH_ID_W_RESERVED12: + case PERIPH_ID_W_RESERVED13: + case PERIPH_ID_W_RESERVED15: + case PERIPH_ID_W_RESERVED16: + case PERIPH_ID_W_RESERVED17: + case PERIPH_ID_W_RESERVED18: + case PERIPH_ID_W_RESERVED19: + case PERIPH_ID_W_RESERVED20: + case PERIPH_ID_W_RESERVED23: + case PERIPH_ID_W_RESERVED29: + case PERIPH_ID_W_RESERVED30: + case PERIPH_ID_W_RESERVED31: + return PERIPH_ID_NONE; + default: + return clk_id; + } +} +#endif /* CONFIG_OF_CONTROL */ + +void clock_early_init(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + + tegra30_set_up_pllp(); + + /* + * PLLC output frequency set to 600Mhz + * PLLD output frequency set to 925Mhz + */ + switch (clock_get_osc_freq()) { + case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */ + clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8); + clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12); + break; + + case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */ + clock_set_rate(CLOCK_ID_CGENERAL, 600, 26, 0, 8); + clock_set_rate(CLOCK_ID_DISPLAY, 925, 26, 0, 12); + break; + + case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */ + clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8); + clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12); + break; + case CLOCK_OSC_FREQ_19_2: + default: + /* + * These are not supported. It is too early to print a + * message and the UART likely won't work anyway due to the + * oscillator being wrong. + */ + break; + } + + /* PLLC_MISC2: Set dynramp_stepA/B. MISC2 maps to pll_out[1] */ + writel(0x00561600, &clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_out[1]); + + /* PLLC_MISC: Set LOCK_ENABLE */ + writel(0x01000000, &clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc); + udelay(2); + + /* PLLD_MISC: Set CLKENABLE, CPCON 12, LFCON 1 */ + writel(0x40000C10, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc); + udelay(2); +} + +void arch_timer_init(void) +{ + struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE; + u32 freq, val; + + freq = clock_get_rate(CLOCK_ID_OSC); + debug("%s: osc freq is %dHz [0x%08X]\n", __func__, freq, freq); + + /* ARM CNTFRQ */ + asm("mcr p15, 0, %0, c14, c0, 0\n" : : "r" (freq)); + + /* Only Tegra114+ has the System Counter regs */ + debug("%s: setting CNTFID0 to 0x%08X\n", __func__, freq); + writel(freq, &sysctr->cntfid0); + + val = readl(&sysctr->cntcr); + val |= TSC_CNTCR_ENABLE | TSC_CNTCR_HDBG; + writel(val, &sysctr->cntcr); + debug("%s: TSC CNTCR = 0x%08X\n", __func__, val); +} + +#define PLLE_SS_CNTL 0x68 +#define PLLE_SS_CNTL_SSCINCINTR(x) (((x) & 0x3f) << 24) +#define PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16) +#define PLLE_SS_CNTL_SSCINVERT (1 << 15) +#define PLLE_SS_CNTL_SSCCENTER (1 << 14) +#define PLLE_SS_CNTL_SSCBYP (1 << 12) +#define PLLE_SS_CNTL_INTERP_RESET (1 << 11) +#define PLLE_SS_CNTL_BYPASS_SS (1 << 10) +#define PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0) + +#define PLLE_BASE 0x0e8 +#define PLLE_BASE_ENABLE (1 << 30) +#define PLLE_BASE_LOCK_OVERRIDE (1 << 29) +#define PLLE_BASE_PLDIV_CML(x) (((x) & 0xf) << 24) +#define PLLE_BASE_NDIV(x) (((x) & 0xff) << 8) +#define PLLE_BASE_MDIV(x) (((x) & 0xff) << 0) + +#define PLLE_MISC 0x0ec +#define PLLE_MISC_IDDQ_SWCTL (1 << 14) +#define PLLE_MISC_IDDQ_OVERRIDE (1 << 13) +#define PLLE_MISC_LOCK_ENABLE (1 << 9) +#define PLLE_MISC_PTS (1 << 8) +#define PLLE_MISC_VREG_BG_CTRL(x) (((x) & 0x3) << 4) +#define PLLE_MISC_VREG_CTRL(x) (((x) & 0x3) << 2) + +#define PLLE_AUX 0x48c +#define PLLE_AUX_SEQ_ENABLE (1 << 24) +#define PLLE_AUX_ENABLE_SWCTL (1 << 4) + +int tegra_plle_enable(void) +{ + unsigned int m = 1, n = 200, cpcon = 13; + u32 value; + + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + value &= ~PLLE_BASE_LOCK_OVERRIDE; + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_AUX); + value |= PLLE_AUX_ENABLE_SWCTL; + value &= ~PLLE_AUX_SEQ_ENABLE; + writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX); + + udelay(1); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + value |= PLLE_MISC_IDDQ_SWCTL; + value &= ~PLLE_MISC_IDDQ_OVERRIDE; + value |= PLLE_MISC_LOCK_ENABLE; + value |= PLLE_MISC_PTS; + value |= PLLE_MISC_VREG_BG_CTRL(3); + value |= PLLE_MISC_VREG_CTRL(2); + writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); + + udelay(5); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value |= PLLE_SS_CNTL_SSCBYP | PLLE_SS_CNTL_INTERP_RESET | + PLLE_SS_CNTL_BYPASS_SS; + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + value &= ~PLLE_BASE_PLDIV_CML(0xf); + value &= ~PLLE_BASE_NDIV(0xff); + value &= ~PLLE_BASE_MDIV(0xff); + value |= PLLE_BASE_PLDIV_CML(cpcon); + value |= PLLE_BASE_NDIV(n); + value |= PLLE_BASE_MDIV(m); + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + udelay(1); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + value |= PLLE_BASE_ENABLE; + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + /* wait for lock */ + udelay(300); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value &= ~PLLE_SS_CNTL_SSCINVERT; + value &= ~PLLE_SS_CNTL_SSCCENTER; + + value &= ~PLLE_SS_CNTL_SSCINCINTR(0x3f); + value &= ~PLLE_SS_CNTL_SSCINC(0xff); + value &= ~PLLE_SS_CNTL_SSCMAX(0x1ff); + + value |= PLLE_SS_CNTL_SSCINCINTR(0x20); + value |= PLLE_SS_CNTL_SSCINC(0x01); + value |= PLLE_SS_CNTL_SSCMAX(0x25); + + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value &= ~PLLE_SS_CNTL_SSCBYP; + value &= ~PLLE_SS_CNTL_BYPASS_SS; + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + udelay(1); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value &= ~PLLE_SS_CNTL_INTERP_RESET; + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + udelay(1); + + return 0; +} diff --git a/arch/arm/mach-tegra/tegra124/cpu.c b/arch/arm/mach-tegra/tegra124/cpu.c new file mode 100644 index 0000000000..974f203f12 --- /dev/null +++ b/arch/arm/mach-tegra/tegra124/cpu.c @@ -0,0 +1,265 @@ +/* + * (C) Copyright 2013 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/ahb.h> +#include <asm/arch/clock.h> +#include <asm/arch/flow.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/pmc.h> +#include <asm/arch-tegra/ap.h> +#include "../cpu.h" + +/* Tegra124-specific CPU init code */ + +static void enable_cpu_power_rail(void) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + + debug("enable_cpu_power_rail entry\n"); + + /* un-tristate PWR_I2C SCL/SDA, rest of the defaults are correct */ + pinmux_tristate_disable(PMUX_PINGRP_PWR_I2C_SCL_PZ6); + pinmux_tristate_disable(PMUX_PINGRP_PWR_I2C_SDA_PZ7); + + pmic_enable_cpu_vdd(); + + /* + * Set CPUPWRGOOD_TIMER - APB clock is 1/2 of SCLK (102MHz), + * set it for 5ms as per SysEng (102MHz*5ms = 510000 (7C830h). + */ + writel(0x7C830, &pmc->pmc_cpupwrgood_timer); + + /* Set polarity to 0 (normal) and enable CPUPWRREQ_OE */ + clrbits_le32(&pmc->pmc_cntrl, CPUPWRREQ_POL); + setbits_le32(&pmc->pmc_cntrl, CPUPWRREQ_OE); +} + +static void enable_cpu_clocks(void) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + debug("enable_cpu_clocks entry\n"); + + /* Wait for PLL-X to lock */ + do { + reg = readl(&clkrst->crc_pll_simple[SIMPLE_PLLX].pll_base); + debug("%s: PLLX base = 0x%08X\n", __func__, reg); + } while ((reg & PLL_LOCK_MASK) == 0); + + debug("%s: PLLX locked, delay for stable clocks\n", __func__); + /* Wait until all clocks are stable */ + udelay(PLL_STABILIZATION_DELAY); + + debug("%s: Setting CCLK_BURST and DIVIDER\n", __func__); + writel(CCLK_BURST_POLICY, &clkrst->crc_cclk_brst_pol); + writel(SUPER_CCLK_DIVIDER, &clkrst->crc_super_cclk_div); + + debug("%s: Enabling clock to all CPUs\n", __func__); + /* Enable the clock to all CPUs */ + reg = CLR_CPU3_CLK_STP | CLR_CPU2_CLK_STP | CLR_CPU1_CLK_STP | + CLR_CPU0_CLK_STP; + writel(reg, &clkrst->crc_clk_cpu_cmplx_clr); + + debug("%s: Enabling main CPU complex clocks\n", __func__); + /* Always enable the main CPU complex clocks */ + clock_enable(PERIPH_ID_CPU); + clock_enable(PERIPH_ID_CPULP); + clock_enable(PERIPH_ID_CPUG); + + debug("%s: Done\n", __func__); +} + +static void remove_cpu_resets(void) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + debug("remove_cpu_resets entry\n"); + + /* Take the slow and fast partitions out of reset */ + reg = CLR_NONCPURESET; + writel(reg, &clkrst->crc_rst_cpulp_cmplx_clr); + writel(reg, &clkrst->crc_rst_cpug_cmplx_clr); + + /* Clear the SW-controlled reset of the slow cluster */ + reg = CLR_CPURESET0 | CLR_DBGRESET0 | CLR_CORERESET0 | CLR_CXRESET0 | + CLR_L2RESET | CLR_PRESETDBG; + writel(reg, &clkrst->crc_rst_cpulp_cmplx_clr); + + /* Clear the SW-controlled reset of the fast cluster */ + reg = CLR_CPURESET0 | CLR_DBGRESET0 | CLR_CORERESET0 | CLR_CXRESET0 | + CLR_CPURESET1 | CLR_DBGRESET1 | CLR_CORERESET1 | CLR_CXRESET1 | + CLR_CPURESET2 | CLR_DBGRESET2 | CLR_CORERESET2 | CLR_CXRESET2 | + CLR_CPURESET3 | CLR_DBGRESET3 | CLR_CORERESET3 | CLR_CXRESET3 | + CLR_L2RESET | CLR_PRESETDBG; + writel(reg, &clkrst->crc_rst_cpug_cmplx_clr); +} + +/** + * The Tegra124 requires some special clock initialization, including setting up + * the DVC I2C, turning on MSELECT and selecting the G CPU cluster + */ +void tegra124_init_clocks(void) +{ + struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE; + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 val; + + debug("tegra124_init_clocks entry\n"); + + /* Set active CPU cluster to G */ + clrbits_le32(&flow->cluster_control, 1); + + /* Change the oscillator drive strength */ + val = readl(&clkrst->crc_osc_ctrl); + val &= ~OSC_XOFS_MASK; + val |= (OSC_DRIVE_STRENGTH << OSC_XOFS_SHIFT); + writel(val, &clkrst->crc_osc_ctrl); + + /* Update same value in PMC_OSC_EDPD_OVER XOFS field for warmboot */ + val = readl(&pmc->pmc_osc_edpd_over); + val &= ~PMC_XOFS_MASK; + val |= (OSC_DRIVE_STRENGTH << PMC_XOFS_SHIFT); + writel(val, &pmc->pmc_osc_edpd_over); + + /* Set HOLD_CKE_LOW_EN to 1 */ + setbits_le32(&pmc->pmc_cntrl2, HOLD_CKE_LOW_EN); + + debug("Setting up PLLX\n"); + init_pllx(); + + val = (1 << CLK_SYS_RATE_AHB_RATE_SHIFT); + writel(val, &clkrst->crc_clk_sys_rate); + + /* Enable clocks to required peripherals. TBD - minimize this list */ + debug("Enabling clocks\n"); + + clock_set_enable(PERIPH_ID_CACHE2, 1); + clock_set_enable(PERIPH_ID_GPIO, 1); + clock_set_enable(PERIPH_ID_TMR, 1); + clock_set_enable(PERIPH_ID_CPU, 1); + clock_set_enable(PERIPH_ID_EMC, 1); + clock_set_enable(PERIPH_ID_I2C5, 1); + clock_set_enable(PERIPH_ID_APBDMA, 1); + clock_set_enable(PERIPH_ID_MEM, 1); + clock_set_enable(PERIPH_ID_CORESIGHT, 1); + clock_set_enable(PERIPH_ID_MSELECT, 1); + clock_set_enable(PERIPH_ID_DVFS, 1); + + /* + * Set MSELECT clock source as PLLP (00), and ask for a clock + * divider that would set the MSELECT clock at 102MHz for a + * PLLP base of 408MHz. + */ + clock_ll_set_source_divisor(PERIPH_ID_MSELECT, 0, + CLK_DIVIDER(NVBL_PLLP_KHZ, 102000)); + + /* Give clock time to stabilize */ + udelay(IO_STABILIZATION_DELAY); + + /* I2C5 (DVC) gets CLK_M and a divisor of 17 */ + clock_ll_set_source_divisor(PERIPH_ID_I2C5, 3, 16); + + /* Give clock time to stabilize */ + udelay(IO_STABILIZATION_DELAY); + + /* Take required peripherals out of reset */ + debug("Taking periphs out of reset\n"); + reset_set_enable(PERIPH_ID_CACHE2, 0); + reset_set_enable(PERIPH_ID_GPIO, 0); + reset_set_enable(PERIPH_ID_TMR, 0); + reset_set_enable(PERIPH_ID_COP, 0); + reset_set_enable(PERIPH_ID_EMC, 0); + reset_set_enable(PERIPH_ID_I2C5, 0); + reset_set_enable(PERIPH_ID_APBDMA, 0); + reset_set_enable(PERIPH_ID_MEM, 0); + reset_set_enable(PERIPH_ID_CORESIGHT, 0); + reset_set_enable(PERIPH_ID_MSELECT, 0); + reset_set_enable(PERIPH_ID_DVFS, 0); + + debug("tegra124_init_clocks exit\n"); +} + +static bool is_partition_powered(u32 partid) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 reg; + + /* Get power gate status */ + reg = readl(&pmc->pmc_pwrgate_status); + return !!(reg & (1 << partid)); +} + +static void power_partition(u32 partid) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + + debug("%s: part ID = %08X\n", __func__, partid); + /* Is the partition already on? */ + if (!is_partition_powered(partid)) { + /* No, toggle the partition power state (OFF -> ON) */ + debug("power_partition, toggling state\n"); + writel(START_CP | partid, &pmc->pmc_pwrgate_toggle); + + /* Wait for the power to come up */ + while (!is_partition_powered(partid)) + ; + + /* Give I/O signals time to stabilize */ + udelay(IO_STABILIZATION_DELAY); + } +} + +void powerup_cpus(void) +{ + debug("powerup_cpus entry\n"); + + /* We boot to the fast cluster */ + debug("powerup_cpus entry: G cluster\n"); + + /* Power up the fast cluster rail partition */ + debug("powerup_cpus: CRAIL\n"); + power_partition(CRAIL); + + /* Power up the fast cluster non-CPU partition */ + debug("powerup_cpus: C0NC\n"); + power_partition(C0NC); + + /* Power up the fast cluster CPU0 partition */ + debug("powerup_cpus: CE0\n"); + power_partition(CE0); + + debug("powerup_cpus: done\n"); +} + +void start_cpu(u32 reset_vector) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + + debug("start_cpu entry, reset_vector = %x\n", reset_vector); + + tegra124_init_clocks(); + + /* Set power-gating timer multiplier */ + writel((MULT_8 << TIMER_MULT_SHIFT) | (MULT_8 << TIMER_MULT_CPU_SHIFT), + &pmc->pmc_pwrgate_timer_mult); + + enable_cpu_power_rail(); + enable_cpu_clocks(); + clock_enable_coresight(1); + remove_cpu_resets(); + writel(reset_vector, EXCEP_VECTOR_CPU_RESET_VECTOR); + powerup_cpus(); + debug("start_cpu exit, should continue @ reset_vector\n"); +} diff --git a/arch/arm/mach-tegra/tegra124/funcmux.c b/arch/arm/mach-tegra/tegra124/funcmux.c new file mode 100644 index 0000000000..cced787e6b --- /dev/null +++ b/arch/arm/mach-tegra/tegra124/funcmux.c @@ -0,0 +1,71 @@ +/* + * (C) Copyright 2013 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* Tegra124 high-level function multiplexing */ + +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/arch/funcmux.h> +#include <asm/arch/pinmux.h> + +int funcmux_select(enum periph_id id, int config) +{ + int bad_config = config != FUNCMUX_DEFAULT; + + switch (id) { + case PERIPH_ID_UART4: + switch (config) { + case FUNCMUX_UART4_GPIO: /* TXD,RXD,CTS,RTS */ + pinmux_set_func(PMUX_PINGRP_PJ7, PMUX_FUNC_UARTD); + pinmux_set_func(PMUX_PINGRP_PB0, PMUX_FUNC_UARTD); + pinmux_set_func(PMUX_PINGRP_PB1, PMUX_FUNC_UARTD); + pinmux_set_func(PMUX_PINGRP_PK7, PMUX_FUNC_UARTD); + + pinmux_set_io(PMUX_PINGRP_PJ7, PMUX_PIN_OUTPUT); + pinmux_set_io(PMUX_PINGRP_PB0, PMUX_PIN_INPUT); + pinmux_set_io(PMUX_PINGRP_PB1, PMUX_PIN_INPUT); + pinmux_set_io(PMUX_PINGRP_PK7, PMUX_PIN_OUTPUT); + + pinmux_tristate_disable(PMUX_PINGRP_PJ7); + pinmux_tristate_disable(PMUX_PINGRP_PB0); + pinmux_tristate_disable(PMUX_PINGRP_PB1); + pinmux_tristate_disable(PMUX_PINGRP_PK7); + break; + } + break; + + case PERIPH_ID_UART1: + switch (config) { + case FUNCMUX_UART1_KBC: + pinmux_set_func(PMUX_PINGRP_KB_ROW9_PS1, + PMUX_FUNC_UARTA); + pinmux_set_func(PMUX_PINGRP_KB_ROW10_PS2, + PMUX_FUNC_UARTA); + + pinmux_set_io(PMUX_PINGRP_KB_ROW9_PS1, PMUX_PIN_OUTPUT); + pinmux_set_io(PMUX_PINGRP_KB_ROW10_PS2, PMUX_PIN_INPUT); + + pinmux_tristate_disable(PMUX_PINGRP_KB_ROW9_PS1); + pinmux_tristate_disable(PMUX_PINGRP_KB_ROW10_PS2); + break; + } + break; + + /* Add other periph IDs here as needed */ + + default: + debug("%s: invalid periph_id %d", __func__, id); + return -1; + } + + if (bad_config) { + debug("%s: invalid config %d for periph_id %d", __func__, + config, id); + return -1; + } + return 0; +} diff --git a/arch/arm/mach-tegra/tegra124/pinmux.c b/arch/arm/mach-tegra/tegra124/pinmux.c new file mode 100644 index 0000000000..c6685eaae1 --- /dev/null +++ b/arch/arm/mach-tegra/tegra124/pinmux.c @@ -0,0 +1,306 @@ +/* + * Copyright (c) 2013-2014, NVIDIA CORPORATION. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/pinmux.h> + +#define PIN(pin, f0, f1, f2, f3) \ + { \ + .funcs = { \ + PMUX_FUNC_##f0, \ + PMUX_FUNC_##f1, \ + PMUX_FUNC_##f2, \ + PMUX_FUNC_##f3, \ + }, \ + } + +#define PIN_RESERVED {} + +static const struct pmux_pingrp_desc tegra124_pingroups[] = { + /* pin, f0, f1, f2, f3 */ + /* Offset 0x3000 */ + PIN(ULPI_DATA0_PO1, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA1_PO2, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA2_PO3, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA3_PO4, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA4_PO5, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA5_PO6, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA6_PO7, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA7_PO0, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_CLK_PY0, SPI1, SPI5, UARTD, ULPI), + PIN(ULPI_DIR_PY1, SPI1, SPI5, UARTD, ULPI), + PIN(ULPI_NXT_PY2, SPI1, SPI5, UARTD, ULPI), + PIN(ULPI_STP_PY3, SPI1, SPI5, UARTD, ULPI), + PIN(DAP3_FS_PP0, I2S2, SPI5, DISPLAYA, DISPLAYB), + PIN(DAP3_DIN_PP1, I2S2, SPI5, DISPLAYA, DISPLAYB), + PIN(DAP3_DOUT_PP2, I2S2, SPI5, DISPLAYA, RSVD4), + PIN(DAP3_SCLK_PP3, I2S2, SPI5, RSVD3, DISPLAYB), + PIN(PV0, RSVD1, RSVD2, RSVD3, RSVD4), + PIN(PV1, RSVD1, RSVD2, RSVD3, RSVD4), + PIN(SDMMC1_CLK_PZ0, SDMMC1, CLK12, RSVD3, RSVD4), + PIN(SDMMC1_CMD_PZ1, SDMMC1, SPDIF, SPI4, UARTA), + PIN(SDMMC1_DAT3_PY4, SDMMC1, SPDIF, SPI4, UARTA), + PIN(SDMMC1_DAT2_PY5, SDMMC1, PWM0, SPI4, UARTA), + PIN(SDMMC1_DAT1_PY6, SDMMC1, PWM1, SPI4, UARTA), + PIN(SDMMC1_DAT0_PY7, SDMMC1, RSVD2, SPI4, UARTA), + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3068 */ + PIN(CLK2_OUT_PW5, EXTPERIPH2, RSVD2, RSVD3, RSVD4), + PIN(CLK2_REQ_PCC5, DAP, RSVD2, RSVD3, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3110 */ + PIN(HDMI_INT_PN7, RSVD1, RSVD2, RSVD3, RSVD4), + PIN(DDC_SCL_PV4, I2C4, RSVD2, RSVD3, RSVD4), + PIN(DDC_SDA_PV5, I2C4, RSVD2, RSVD3, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3164 */ + PIN(UART2_RXD_PC3, IRDA, SPDIF, UARTA, SPI4), + PIN(UART2_TXD_PC2, IRDA, SPDIF, UARTA, SPI4), + PIN(UART2_RTS_N_PJ6, UARTA, UARTB, GMI, SPI4), + PIN(UART2_CTS_N_PJ5, UARTA, UARTB, GMI, SPI4), + PIN(UART3_TXD_PW6, UARTC, RSVD2, GMI, SPI4), + PIN(UART3_RXD_PW7, UARTC, RSVD2, GMI, SPI4), + PIN(UART3_CTS_N_PA1, UARTC, SDMMC1, DTV, GMI), + PIN(UART3_RTS_N_PC0, UARTC, PWM0, DTV, GMI), + PIN(PU0, OWR, UARTA, GMI, RSVD4), + PIN(PU1, RSVD1, UARTA, GMI, RSVD4), + PIN(PU2, RSVD1, UARTA, GMI, RSVD4), + PIN(PU3, PWM0, UARTA, GMI, DISPLAYB), + PIN(PU4, PWM1, UARTA, GMI, DISPLAYB), + PIN(PU5, PWM2, UARTA, GMI, DISPLAYB), + PIN(PU6, PWM3, UARTA, RSVD3, GMI), + PIN(GEN1_I2C_SDA_PC5, I2C1, RSVD2, RSVD3, RSVD4), + PIN(GEN1_I2C_SCL_PC4, I2C1, RSVD2, RSVD3, RSVD4), + PIN(DAP4_FS_PP4, I2S3, GMI, DTV, RSVD4), + PIN(DAP4_DIN_PP5, I2S3, GMI, RSVD3, RSVD4), + PIN(DAP4_DOUT_PP6, I2S3, GMI, DTV, RSVD4), + PIN(DAP4_SCLK_PP7, I2S3, GMI, RSVD3, RSVD4), + PIN(CLK3_OUT_PEE0, EXTPERIPH3, RSVD2, RSVD3, RSVD4), + PIN(CLK3_REQ_PEE1, DEV3, RSVD2, RSVD3, RSVD4), + PIN(PC7, RSVD1, RSVD2, GMI, GMI_ALT), + PIN(PI5, SDMMC2, RSVD2, GMI, RSVD4), + PIN(PI7, RSVD1, TRACE, GMI, DTV), + PIN(PK0, RSVD1, SDMMC3, GMI, SOC), + PIN(PK1, SDMMC2, TRACE, GMI, RSVD4), + PIN(PJ0, RSVD1, RSVD2, GMI, USB), + PIN(PJ2, RSVD1, RSVD2, GMI, SOC), + PIN(PK3, SDMMC2, TRACE, GMI, CCLA), + PIN(PK4, SDMMC2, RSVD2, GMI, GMI_ALT), + PIN(PK2, RSVD1, RSVD2, GMI, RSVD4), + PIN(PI3, RSVD1, RSVD2, GMI, SPI4), + PIN(PI6, RSVD1, RSVD2, GMI, SDMMC2), + PIN(PG0, RSVD1, RSVD2, GMI, RSVD4), + PIN(PG1, RSVD1, RSVD2, GMI, RSVD4), + PIN(PG2, RSVD1, TRACE, GMI, RSVD4), + PIN(PG3, RSVD1, TRACE, GMI, RSVD4), + PIN(PG4, RSVD1, TMDS, GMI, SPI4), + PIN(PG5, RSVD1, RSVD2, GMI, SPI4), + PIN(PG6, RSVD1, RSVD2, GMI, SPI4), + PIN(PG7, RSVD1, RSVD2, GMI, SPI4), + PIN(PH0, PWM0, TRACE, GMI, DTV), + PIN(PH1, PWM1, TMDS, GMI, DISPLAYA), + PIN(PH2, PWM2, TMDS, GMI, CLDVFS), + PIN(PH3, PWM3, SPI4, GMI, CLDVFS), + PIN(PH4, SDMMC2, RSVD2, GMI, RSVD4), + PIN(PH5, SDMMC2, RSVD2, GMI, RSVD4), + PIN(PH6, SDMMC2, TRACE, GMI, DTV), + PIN(PH7, SDMMC2, TRACE, GMI, DTV), + PIN(PJ7, UARTD, RSVD2, GMI, GMI_ALT), + PIN(PB0, UARTD, RSVD2, GMI, RSVD4), + PIN(PB1, UARTD, RSVD2, GMI, RSVD4), + PIN(PK7, UARTD, RSVD2, GMI, RSVD4), + PIN(PI0, RSVD1, RSVD2, GMI, RSVD4), + PIN(PI1, RSVD1, RSVD2, GMI, RSVD4), + PIN(PI2, SDMMC2, TRACE, GMI, RSVD4), + PIN(PI4, SPI4, TRACE, GMI, DISPLAYA), + PIN(GEN2_I2C_SCL_PT5, I2C2, RSVD2, GMI, RSVD4), + PIN(GEN2_I2C_SDA_PT6, I2C2, RSVD2, GMI, RSVD4), + PIN(SDMMC4_CLK_PCC4, SDMMC4, RSVD2, GMI, RSVD4), + PIN(SDMMC4_CMD_PT7, SDMMC4, RSVD2, GMI, RSVD4), + PIN(SDMMC4_DAT0_PAA0, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT1_PAA1, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT2_PAA2, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT3_PAA3, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT4_PAA4, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT5_PAA5, SDMMC4, SPI3, RSVD3, RSVD4), + PIN(SDMMC4_DAT6_PAA6, SDMMC4, SPI3, GMI, RSVD4), + PIN(SDMMC4_DAT7_PAA7, SDMMC4, RSVD2, GMI, RSVD4), + PIN_RESERVED, + /* Offset 0x3284 */ + PIN(CAM_MCLK_PCC0, VI, VI_ALT1, VI_ALT3, SDMMC2), + PIN(PCC1, I2S4, RSVD2, RSVD3, SDMMC2), + PIN(PBB0, VGP6, VIMCLK2, SDMMC2, VIMCLK2_ALT), + PIN(CAM_I2C_SCL_PBB1, VGP1, I2C3, RSVD3, SDMMC2), + PIN(CAM_I2C_SDA_PBB2, VGP2, I2C3, RSVD3, SDMMC2), + PIN(PBB3, VGP3, DISPLAYA, DISPLAYB, SDMMC2), + PIN(PBB4, VGP4, DISPLAYA, DISPLAYB, SDMMC2), + PIN(PBB5, VGP5, DISPLAYA, RSVD3, SDMMC2), + PIN(PBB6, I2S4, RSVD2, DISPLAYB, SDMMC2), + PIN(PBB7, I2S4, RSVD2, RSVD3, SDMMC2), + PIN(PCC2, I2S4, RSVD2, SDMMC3, SDMMC2), + PIN(JTAG_RTCK, RTCK, RSVD2, RSVD3, RSVD4), + PIN(PWR_I2C_SCL_PZ6, I2CPWR, RSVD2, RSVD3, RSVD4), + PIN(PWR_I2C_SDA_PZ7, I2CPWR, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW0_PR0, KBC, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW1_PR1, KBC, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW2_PR2, KBC, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW3_PR3, KBC, DISPLAYA, SYS, DISPLAYB), + PIN(KB_ROW4_PR4, KBC, DISPLAYA, RSVD3, DISPLAYB), + PIN(KB_ROW5_PR5, KBC, DISPLAYA, RSVD3, DISPLAYB), + PIN(KB_ROW6_PR6, KBC, DISPLAYA, DISPLAYA_ALT, DISPLAYB), + PIN(KB_ROW7_PR7, KBC, RSVD2, CLDVFS, UARTA), + PIN(KB_ROW8_PS0, KBC, RSVD2, CLDVFS, UARTA), + PIN(KB_ROW9_PS1, KBC, RSVD2, RSVD3, UARTA), + PIN(KB_ROW10_PS2, KBC, RSVD2, RSVD3, UARTA), + PIN(KB_ROW11_PS3, KBC, RSVD2, RSVD3, IRDA), + PIN(KB_ROW12_PS4, KBC, RSVD2, RSVD3, IRDA), + PIN(KB_ROW13_PS5, KBC, RSVD2, SPI2, RSVD4), + PIN(KB_ROW14_PS6, KBC, RSVD2, SPI2, RSVD4), + PIN(KB_ROW15_PS7, KBC, SOC, RSVD3, RSVD4), + PIN(KB_COL0_PQ0, KBC, RSVD2, SPI2, RSVD4), + PIN(KB_COL1_PQ1, KBC, RSVD2, SPI2, RSVD4), + PIN(KB_COL2_PQ2, KBC, RSVD2, SPI2, RSVD4), + PIN(KB_COL3_PQ3, KBC, DISPLAYA, PWM2, UARTA), + PIN(KB_COL4_PQ4, KBC, OWR, SDMMC3, UARTA), + PIN(KB_COL5_PQ5, KBC, RSVD2, SDMMC3, RSVD4), + PIN(KB_COL6_PQ6, KBC, RSVD2, SPI2, UARTD), + PIN(KB_COL7_PQ7, KBC, RSVD2, SPI2, UARTD), + PIN(CLK_32K_OUT_PA0, BLINK, SOC, RSVD3, RSVD4), + PIN_RESERVED, + /* Offset 0x3324 */ + PIN(CORE_PWR_REQ, PWRON, RSVD2, RSVD3, RSVD4), + PIN(CPU_PWR_REQ, CPU, RSVD2, RSVD3, RSVD4), + PIN(PWR_INT_N, PMI, RSVD2, RSVD3, RSVD4), + PIN(CLK_32K_IN, CLK, RSVD2, RSVD3, RSVD4), + PIN(OWR, OWR, RSVD2, RSVD3, RSVD4), + PIN(DAP1_FS_PN0, I2S0, HDA, GMI, RSVD4), + PIN(DAP1_DIN_PN1, I2S0, HDA, GMI, RSVD4), + PIN(DAP1_DOUT_PN2, I2S0, HDA, GMI, SATA), + PIN(DAP1_SCLK_PN3, I2S0, HDA, GMI, RSVD4), + PIN(DAP_MCLK1_REQ_PEE2, DAP, DAP1, SATA, RSVD4), + PIN(DAP_MCLK1_PW4, EXTPERIPH1, DAP2, RSVD3, RSVD4), + PIN(SPDIF_IN_PK6, SPDIF, RSVD2, RSVD3, I2C3), + PIN(SPDIF_OUT_PK5, SPDIF, RSVD2, RSVD3, I2C3), + PIN(DAP2_FS_PA2, I2S1, HDA, GMI, RSVD4), + PIN(DAP2_DIN_PA4, I2S1, HDA, GMI, RSVD4), + PIN(DAP2_DOUT_PA5, I2S1, HDA, GMI, RSVD4), + PIN(DAP2_SCLK_PA3, I2S1, HDA, GMI, RSVD4), + PIN(DVFS_PWM_PX0, SPI6, CLDVFS, GMI, RSVD4), + PIN(GPIO_X1_AUD_PX1, SPI6, RSVD2, GMI, RSVD4), + PIN(GPIO_X3_AUD_PX3, SPI6, SPI1, GMI, RSVD4), + PIN(DVFS_CLK_PX2, SPI6, CLDVFS, GMI, RSVD4), + PIN(GPIO_X4_AUD_PX4, GMI, SPI1, SPI2, DAP2), + PIN(GPIO_X5_AUD_PX5, GMI, SPI1, SPI2, RSVD4), + PIN(GPIO_X6_AUD_PX6, SPI6, SPI1, SPI2, GMI), + PIN(GPIO_X7_AUD_PX7, RSVD1, SPI1, SPI2, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3390 */ + PIN(SDMMC3_CLK_PA6, SDMMC3, RSVD2, RSVD3, SPI3), + PIN(SDMMC3_CMD_PA7, SDMMC3, PWM3, UARTA, SPI3), + PIN(SDMMC3_DAT0_PB7, SDMMC3, RSVD2, RSVD3, SPI3), + PIN(SDMMC3_DAT1_PB6, SDMMC3, PWM2, UARTA, SPI3), + PIN(SDMMC3_DAT2_PB5, SDMMC3, PWM1, DISPLAYA, SPI3), + PIN(SDMMC3_DAT3_PB4, SDMMC3, PWM0, DISPLAYB, SPI3), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x33bc */ + PIN(PEX_L0_RST_N_PDD1, PE0, RSVD2, RSVD3, RSVD4), + PIN(PEX_L0_CLKREQ_N_PDD2, PE0, RSVD2, RSVD3, RSVD4), + PIN(PEX_WAKE_N_PDD3, PE, RSVD2, RSVD3, RSVD4), + PIN_RESERVED, + /* Offset 0x33cc */ + PIN(PEX_L1_RST_N_PDD5, PE1, RSVD2, RSVD3, RSVD4), + PIN(PEX_L1_CLKREQ_N_PDD6, PE1, RSVD2, RSVD3, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x33e0 */ + PIN(HDMI_CEC_PEE3, CEC, RSVD2, RSVD3, RSVD4), + PIN(SDMMC1_WP_N_PV3, SDMMC1, CLK12, SPI4, UARTA), + PIN(SDMMC3_CD_N_PV2, SDMMC3, OWR, RSVD3, RSVD4), + PIN(GPIO_W2_AUD_PW2, SPI6, RSVD2, SPI2, I2C1), + PIN(GPIO_W3_AUD_PW3, SPI6, SPI1, SPI2, I2C1), + PIN(USB_VBUS_EN0_PN4, USB, RSVD2, RSVD3, RSVD4), + PIN(USB_VBUS_EN1_PN5, USB, RSVD2, RSVD3, RSVD4), + PIN(SDMMC3_CLK_LB_IN_PEE5, SDMMC3, RSVD2, RSVD3, RSVD4), + PIN(SDMMC3_CLK_LB_OUT_PEE4, SDMMC3, RSVD2, RSVD3, RSVD4), + PIN(GMI_CLK_LB, SDMMC2, RSVD2, GMI, RSVD4), + PIN(RESET_OUT_N, RSVD1, RSVD2, RSVD3, RESET_OUT_N), + PIN(KB_ROW16_PT0, KBC, RSVD2, RSVD3, UARTC), + PIN(KB_ROW17_PT1, KBC, RSVD2, RSVD3, UARTC), + PIN(USB_VBUS_EN2_PFF1, USB, RSVD2, RSVD3, RSVD4), + PIN(PFF2, SATA, RSVD2, RSVD3, RSVD4), + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + PIN_RESERVED, + /* Offset 0x3430 */ + PIN(DP_HPD_PFF0, DP, RSVD2, RSVD3, RSVD4), +}; +const struct pmux_pingrp_desc *tegra_soc_pingroups = tegra124_pingroups; diff --git a/arch/arm/mach-tegra/tegra124/xusb-padctl.c b/arch/arm/mach-tegra/tegra124/xusb-padctl.c new file mode 100644 index 0000000000..43af883f2c --- /dev/null +++ b/arch/arm/mach-tegra/tegra124/xusb-padctl.c @@ -0,0 +1,716 @@ +/* + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#define pr_fmt(fmt) "tegra-xusb-padctl: " fmt + +#include <common.h> +#include <errno.h> +#include <fdtdec.h> +#include <malloc.h> + +#include <asm/io.h> + +#include <asm/arch/clock.h> +#include <asm/arch-tegra/xusb-padctl.h> + +#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h> + +#define XUSB_PADCTL_ELPG_PROGRAM 0x01c +#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 26) +#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 25) +#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 24) + +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1 0x040 +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET (1 << 19) +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK (0xf << 12) +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST (1 << 1) + +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2 0x044 +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN (1 << 6) +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN (1 << 5) +#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL (1 << 4) + +#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1 0x138 +#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET (1 << 27) +#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE (1 << 24) +#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD (1 << 3) +#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST (1 << 1) +#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ (1 << 0) + +#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1 0x148 +#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD (1 << 1) +#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ (1 << 0) + +enum tegra124_function { + TEGRA124_FUNC_SNPS, + TEGRA124_FUNC_XUSB, + TEGRA124_FUNC_UART, + TEGRA124_FUNC_PCIE, + TEGRA124_FUNC_USB3, + TEGRA124_FUNC_SATA, + TEGRA124_FUNC_RSVD, +}; + +static const char *const tegra124_functions[] = { + "snps", + "xusb", + "uart", + "pcie", + "usb3", + "sata", + "rsvd", +}; + +static const unsigned int tegra124_otg_functions[] = { + TEGRA124_FUNC_SNPS, + TEGRA124_FUNC_XUSB, + TEGRA124_FUNC_UART, + TEGRA124_FUNC_RSVD, +}; + +static const unsigned int tegra124_usb_functions[] = { + TEGRA124_FUNC_SNPS, + TEGRA124_FUNC_XUSB, +}; + +static const unsigned int tegra124_pci_functions[] = { + TEGRA124_FUNC_PCIE, + TEGRA124_FUNC_USB3, + TEGRA124_FUNC_SATA, + TEGRA124_FUNC_RSVD, +}; + +struct tegra_xusb_padctl_lane { + const char *name; + + unsigned int offset; + unsigned int shift; + unsigned int mask; + unsigned int iddq; + + const unsigned int *funcs; + unsigned int num_funcs; +}; + +#define TEGRA124_LANE(_name, _offset, _shift, _mask, _iddq, _funcs) \ + { \ + .name = _name, \ + .offset = _offset, \ + .shift = _shift, \ + .mask = _mask, \ + .iddq = _iddq, \ + .num_funcs = ARRAY_SIZE(tegra124_##_funcs##_functions), \ + .funcs = tegra124_##_funcs##_functions, \ + } + +static const struct tegra_xusb_padctl_lane tegra124_lanes[] = { + TEGRA124_LANE("otg-0", 0x004, 0, 0x3, 0, otg), + TEGRA124_LANE("otg-1", 0x004, 2, 0x3, 0, otg), + TEGRA124_LANE("otg-2", 0x004, 4, 0x3, 0, otg), + TEGRA124_LANE("ulpi-0", 0x004, 12, 0x1, 0, usb), + TEGRA124_LANE("hsic-0", 0x004, 14, 0x1, 0, usb), + TEGRA124_LANE("hsic-1", 0x004, 15, 0x1, 0, usb), + TEGRA124_LANE("pcie-0", 0x134, 16, 0x3, 1, pci), + TEGRA124_LANE("pcie-1", 0x134, 18, 0x3, 2, pci), + TEGRA124_LANE("pcie-2", 0x134, 20, 0x3, 3, pci), + TEGRA124_LANE("pcie-3", 0x134, 22, 0x3, 4, pci), + TEGRA124_LANE("pcie-4", 0x134, 24, 0x3, 5, pci), + TEGRA124_LANE("sata-0", 0x134, 26, 0x3, 6, pci), +}; + +struct tegra_xusb_phy_ops { + int (*prepare)(struct tegra_xusb_phy *phy); + int (*enable)(struct tegra_xusb_phy *phy); + int (*disable)(struct tegra_xusb_phy *phy); + int (*unprepare)(struct tegra_xusb_phy *phy); +}; + +struct tegra_xusb_phy { + const struct tegra_xusb_phy_ops *ops; + + struct tegra_xusb_padctl *padctl; +}; + +struct tegra_xusb_padctl_pin { + const struct tegra_xusb_padctl_lane *lane; + + unsigned int func; + int iddq; +}; + +#define MAX_GROUPS 3 +#define MAX_PINS 6 + +struct tegra_xusb_padctl_group { + const char *name; + + const char *pins[MAX_PINS]; + unsigned int num_pins; + + const char *func; + int iddq; +}; + +struct tegra_xusb_padctl_config { + const char *name; + + struct tegra_xusb_padctl_group groups[MAX_GROUPS]; + unsigned int num_groups; +}; + +struct tegra_xusb_padctl { + struct fdt_resource regs; + + unsigned int enable; + + struct tegra_xusb_phy phys[2]; + + const struct tegra_xusb_padctl_lane *lanes; + unsigned int num_lanes; + + const char *const *functions; + unsigned int num_functions; + + struct tegra_xusb_padctl_config config; +}; + +static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl, + unsigned long offset) +{ + return readl(padctl->regs.start + offset); +} + +static inline void padctl_writel(struct tegra_xusb_padctl *padctl, + u32 value, unsigned long offset) +{ + writel(value, padctl->regs.start + offset); +} + +static int tegra_xusb_padctl_enable(struct tegra_xusb_padctl *padctl) +{ + u32 value; + + if (padctl->enable++ > 0) + return 0; + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN; + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + udelay(100); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY; + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + udelay(100); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN; + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + return 0; +} + +static int tegra_xusb_padctl_disable(struct tegra_xusb_padctl *padctl) +{ + u32 value; + + if (padctl->enable == 0) { + error("tegra-xusb-padctl: unbalanced enable/disable"); + return 0; + } + + if (--padctl->enable > 0) + return 0; + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN; + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + udelay(100); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY; + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + udelay(100); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN; + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + return 0; +} + +static int phy_prepare(struct tegra_xusb_phy *phy) +{ + return tegra_xusb_padctl_enable(phy->padctl); +} + +static int phy_unprepare(struct tegra_xusb_phy *phy) +{ + return tegra_xusb_padctl_disable(phy->padctl); +} + +static int pcie_phy_enable(struct tegra_xusb_phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy->padctl; + int err = -ETIMEDOUT; + unsigned long start; + u32 value; + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1); + value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL2); + value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN | + XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN | + XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL2); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1); + value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1); + + start = get_timer(0); + + while (get_timer(start) < 50) { + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1); + if (value & XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET) { + err = 0; + break; + } + } + + return err; +} + +static int pcie_phy_disable(struct tegra_xusb_phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy->padctl; + u32 value; + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1); + value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1); + + return 0; +} + +static int sata_phy_enable(struct tegra_xusb_phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy->padctl; + int err = -ETIMEDOUT; + unsigned long start; + u32 value; + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1); + value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD; + value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD; + value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + + start = get_timer(0); + + while (get_timer(start) < 50) { + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + if (value & XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET) { + err = 0; + break; + } + } + + return err; +} + +static int sata_phy_disable(struct tegra_xusb_phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy->padctl; + u32 value; + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD; + value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1); + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1); + value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD; + value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ; + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1); + + return 0; +} + +static const struct tegra_xusb_phy_ops pcie_phy_ops = { + .prepare = phy_prepare, + .enable = pcie_phy_enable, + .disable = pcie_phy_disable, + .unprepare = phy_unprepare, +}; + +static const struct tegra_xusb_phy_ops sata_phy_ops = { + .prepare = phy_prepare, + .enable = sata_phy_enable, + .disable = sata_phy_disable, + .unprepare = phy_unprepare, +}; + +static struct tegra_xusb_padctl *padctl = &(struct tegra_xusb_padctl) { + .phys = { + [0] = { + .ops = &pcie_phy_ops, + }, + [1] = { + .ops = &sata_phy_ops, + }, + }, +}; + +static const struct tegra_xusb_padctl_lane * +tegra_xusb_padctl_find_lane(struct tegra_xusb_padctl *padctl, const char *name) +{ + unsigned int i; + + for (i = 0; i < padctl->num_lanes; i++) + if (strcmp(name, padctl->lanes[i].name) == 0) + return &padctl->lanes[i]; + + return NULL; +} + +static int +tegra_xusb_padctl_group_parse_dt(struct tegra_xusb_padctl *padctl, + struct tegra_xusb_padctl_group *group, + const void *fdt, int node) +{ + unsigned int i; + int len, err; + + group->name = fdt_get_name(fdt, node, &len); + + len = fdt_count_strings(fdt, node, "nvidia,lanes"); + if (len < 0) { + error("tegra-xusb-padctl: failed to parse \"nvidia,lanes\" property"); + return -EINVAL; + } + + group->num_pins = len; + + for (i = 0; i < group->num_pins; i++) { + err = fdt_get_string_index(fdt, node, "nvidia,lanes", i, + &group->pins[i]); + if (err < 0) { + error("tegra-xusb-padctl: failed to read string from \"nvidia,lanes\" property"); + return -EINVAL; + } + } + + group->num_pins = len; + + err = fdt_get_string(fdt, node, "nvidia,function", &group->func); + if (err < 0) { + error("tegra-xusb-padctl: failed to parse \"nvidia,func\" property"); + return -EINVAL; + } + + group->iddq = fdtdec_get_int(fdt, node, "nvidia,iddq", -1); + + return 0; +} + +static int tegra_xusb_padctl_find_function(struct tegra_xusb_padctl *padctl, + const char *name) +{ + unsigned int i; + + for (i = 0; i < padctl->num_functions; i++) + if (strcmp(name, padctl->functions[i]) == 0) + return i; + + return -ENOENT; +} + +static int +tegra_xusb_padctl_lane_find_function(struct tegra_xusb_padctl *padctl, + const struct tegra_xusb_padctl_lane *lane, + const char *name) +{ + unsigned int i; + int func; + + func = tegra_xusb_padctl_find_function(padctl, name); + if (func < 0) + return func; + + for (i = 0; i < lane->num_funcs; i++) + if (lane->funcs[i] == func) + return i; + + return -ENOENT; +} + +static int +tegra_xusb_padctl_group_apply(struct tegra_xusb_padctl *padctl, + const struct tegra_xusb_padctl_group *group) +{ + unsigned int i; + + for (i = 0; i < group->num_pins; i++) { + const struct tegra_xusb_padctl_lane *lane; + unsigned int func; + u32 value; + + lane = tegra_xusb_padctl_find_lane(padctl, group->pins[i]); + if (!lane) { + error("tegra-xusb-padctl: no lane for pin %s", + group->pins[i]); + continue; + } + + func = tegra_xusb_padctl_lane_find_function(padctl, lane, + group->func); + if (func < 0) { + error("tegra-xusb-padctl: function %s invalid for lane %s: %d", + group->func, lane->name, func); + continue; + } + + value = padctl_readl(padctl, lane->offset); + + /* set pin function */ + value &= ~(lane->mask << lane->shift); + value |= func << lane->shift; + + /* + * Set IDDQ if supported on the lane and specified in the + * configuration. + */ + if (lane->iddq > 0 && group->iddq >= 0) { + if (group->iddq != 0) + value &= ~(1 << lane->iddq); + else + value |= 1 << lane->iddq; + } + + padctl_writel(padctl, value, lane->offset); + } + + return 0; +} + +static int +tegra_xusb_padctl_config_apply(struct tegra_xusb_padctl *padctl, + struct tegra_xusb_padctl_config *config) +{ + unsigned int i; + + for (i = 0; i < config->num_groups; i++) { + const struct tegra_xusb_padctl_group *group; + int err; + + group = &config->groups[i]; + + err = tegra_xusb_padctl_group_apply(padctl, group); + if (err < 0) { + error("tegra-xusb-padctl: failed to apply group %s: %d", + group->name, err); + continue; + } + } + + return 0; +} + +static int +tegra_xusb_padctl_config_parse_dt(struct tegra_xusb_padctl *padctl, + struct tegra_xusb_padctl_config *config, + const void *fdt, int node) +{ + int subnode; + + config->name = fdt_get_name(fdt, node, NULL); + + fdt_for_each_subnode(fdt, subnode, node) { + struct tegra_xusb_padctl_group *group; + int err; + + group = &config->groups[config->num_groups]; + + err = tegra_xusb_padctl_group_parse_dt(padctl, group, fdt, + subnode); + if (err < 0) { + error("tegra-xusb-padctl: failed to parse group %s", + group->name); + return err; + } + + config->num_groups++; + } + + return 0; +} + +static int tegra_xusb_padctl_parse_dt(struct tegra_xusb_padctl *padctl, + const void *fdt, int node) +{ + int subnode, err; + + err = fdt_get_resource(fdt, node, "reg", 0, &padctl->regs); + if (err < 0) { + error("tegra-xusb-padctl: registers not found"); + return err; + } + + fdt_for_each_subnode(fdt, subnode, node) { + struct tegra_xusb_padctl_config *config = &padctl->config; + + err = tegra_xusb_padctl_config_parse_dt(padctl, config, fdt, + subnode); + if (err < 0) { + error("tegra-xusb-padctl: failed to parse entry %s: %d", + config->name, err); + continue; + } + } + + return 0; +} + +static int process_nodes(const void *fdt, int nodes[], unsigned int count) +{ + unsigned int i; + + for (i = 0; i < count; i++) { + enum fdt_compat_id id; + int err; + + if (!fdtdec_get_is_enabled(fdt, nodes[i])) + continue; + + id = fdtdec_lookup(fdt, nodes[i]); + switch (id) { + case COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL: + break; + + default: + error("tegra-xusb-padctl: unsupported compatible: %s", + fdtdec_get_compatible(id)); + continue; + } + + padctl->num_lanes = ARRAY_SIZE(tegra124_lanes); + padctl->lanes = tegra124_lanes; + + padctl->num_functions = ARRAY_SIZE(tegra124_functions); + padctl->functions = tegra124_functions; + + err = tegra_xusb_padctl_parse_dt(padctl, fdt, nodes[i]); + if (err < 0) { + error("tegra-xusb-padctl: failed to parse DT: %d", + err); + continue; + } + + /* deassert XUSB padctl reset */ + reset_set_enable(PERIPH_ID_XUSB_PADCTL, 0); + + err = tegra_xusb_padctl_config_apply(padctl, &padctl->config); + if (err < 0) { + error("tegra-xusb-padctl: failed to apply pinmux: %d", + err); + continue; + } + + /* only a single instance is supported */ + break; + } + + return 0; +} + +struct tegra_xusb_phy *tegra_xusb_phy_get(unsigned int type) +{ + struct tegra_xusb_phy *phy = NULL; + + switch (type) { + case TEGRA_XUSB_PADCTL_PCIE: + phy = &padctl->phys[0]; + phy->padctl = padctl; + break; + + case TEGRA_XUSB_PADCTL_SATA: + phy = &padctl->phys[1]; + phy->padctl = padctl; + break; + } + + return phy; +} + +int tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy) +{ + if (phy && phy->ops && phy->ops->prepare) + return phy->ops->prepare(phy); + + return phy ? -ENOSYS : -EINVAL; +} + +int tegra_xusb_phy_enable(struct tegra_xusb_phy *phy) +{ + if (phy && phy->ops && phy->ops->enable) + return phy->ops->enable(phy); + + return phy ? -ENOSYS : -EINVAL; +} + +int tegra_xusb_phy_disable(struct tegra_xusb_phy *phy) +{ + if (phy && phy->ops && phy->ops->disable) + return phy->ops->disable(phy); + + return phy ? -ENOSYS : -EINVAL; +} + +int tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy) +{ + if (phy && phy->ops && phy->ops->unprepare) + return phy->ops->unprepare(phy); + + return phy ? -ENOSYS : -EINVAL; +} + +void tegra_xusb_padctl_init(const void *fdt) +{ + int count, nodes[1]; + + count = fdtdec_find_aliases_for_id(fdt, "padctl", + COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL, + nodes, ARRAY_SIZE(nodes)); + if (process_nodes(fdt, nodes, count)) + return; +} diff --git a/arch/arm/mach-tegra/tegra20/Kconfig b/arch/arm/mach-tegra/tegra20/Kconfig new file mode 100644 index 0000000000..a354e2ad1f --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/Kconfig @@ -0,0 +1,52 @@ +if TEGRA20 + +choice + prompt "Tegra20 board select" + +config TARGET_HARMONY + bool "NVIDIA Tegra20 Harmony evaluation board" + +config TARGET_MEDCOM_WIDE + bool "Avionic Design Medcom-Wide board" + +config TARGET_PAZ00 + bool "Paz00 board" + +config TARGET_PLUTUX + bool "Avionic Design Plutux board" + +config TARGET_SEABOARD + bool "NVIDIA Seaboard" + +config TARGET_TEC + bool "Avionic Design Tamonten Evaluation Carrier" + +config TARGET_TRIMSLICE + bool "Compulab TrimSlice board" + +config TARGET_VENTANA + bool "NVIDIA Tegra20 Ventana evaluation board" + +config TARGET_WHISTLER + bool "NVIDIA Tegra20 Whistler evaluation board" + +config TARGET_COLIBRI_T20_IRIS + bool "Toradex Colibri T20 board" + +endchoice + +config SYS_SOC + default "tegra20" + +source "board/nvidia/harmony/Kconfig" +source "board/avionic-design/medcom-wide/Kconfig" +source "board/compal/paz00/Kconfig" +source "board/avionic-design/plutux/Kconfig" +source "board/nvidia/seaboard/Kconfig" +source "board/avionic-design/tec/Kconfig" +source "board/compulab/trimslice/Kconfig" +source "board/nvidia/ventana/Kconfig" +source "board/nvidia/whistler/Kconfig" +source "board/toradex/colibri_t20_iris/Kconfig" + +endif diff --git a/arch/arm/mach-tegra/tegra20/Makefile b/arch/arm/mach-tegra/tegra20/Makefile new file mode 100644 index 0000000000..d48f9bb325 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/Makefile @@ -0,0 +1,21 @@ +# +# (C) Copyright 2010,2011 Nvidia Corporation. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +ifdef CONFIG_SPL_BUILD +obj-y += cpu.o +else +obj-$(CONFIG_PWM_TEGRA) += pwm.o +obj-$(CONFIG_VIDEO_TEGRA) += display.o +endif + +# The AVP is ARMv4T architecture so we must use special compiler +# flags for any startup files it might use. +CFLAGS_warmboot_avp.o += -march=armv4t + +obj-y += clock.o funcmux.o pinmux.o +obj-$(CONFIG_TEGRA_LP0) += warmboot.o crypto.o warmboot_avp.o +obj-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o +obj-$(CONFIG_TEGRA_PMU) += pmu.o diff --git a/arch/arm/mach-tegra/tegra20/clock.c b/arch/arm/mach-tegra/tegra20/clock.c new file mode 100644 index 0000000000..7b9e10cd93 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/clock.c @@ -0,0 +1,687 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* Tegra20 Clock control functions */ + +#include <common.h> +#include <errno.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/timer.h> +#include <div64.h> +#include <fdtdec.h> + +/* + * Clock types that we can use as a source. The Tegra20 has muxes for the + * peripheral clocks, and in most cases there are four options for the clock + * source. This gives us a clock 'type' and exploits what commonality exists + * in the device. + * + * Letters are obvious, except for T which means CLK_M, and S which means the + * clock derived from 32KHz. Beware that CLK_M (also called OSC in the + * datasheet) and PLL_M are different things. The former is the basic + * clock supplied to the SOC from an external oscillator. The latter is the + * memory clock PLL. + * + * See definitions in clock_id in the header file. + */ +enum clock_type_id { + CLOCK_TYPE_AXPT, /* PLL_A, PLL_X, PLL_P, CLK_M */ + CLOCK_TYPE_MCPA, /* and so on */ + CLOCK_TYPE_MCPT, + CLOCK_TYPE_PCM, + CLOCK_TYPE_PCMT, + CLOCK_TYPE_PCMT16, /* CLOCK_TYPE_PCMT with 16-bit divider */ + CLOCK_TYPE_PCXTS, + CLOCK_TYPE_PDCT, + + CLOCK_TYPE_COUNT, + CLOCK_TYPE_NONE = -1, /* invalid clock type */ +}; + +enum { + CLOCK_MAX_MUX = 4 /* number of source options for each clock */ +}; + +/* + * Clock source mux for each clock type. This just converts our enum into + * a list of mux sources for use by the code. Note that CLOCK_TYPE_PCXTS + * is special as it has 5 sources. Since it also has a different number of + * bits in its register for the source, we just handle it with a special + * case in the code. + */ +#define CLK(x) CLOCK_ID_ ## x +static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX] = { + { CLK(AUDIO), CLK(XCPU), CLK(PERIPH), CLK(OSC) }, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(AUDIO) }, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC) }, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(NONE) }, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC) }, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC) }, + { CLK(PERIPH), CLK(CGENERAL), CLK(XCPU), CLK(OSC) }, + { CLK(PERIPH), CLK(DISPLAY), CLK(CGENERAL), CLK(OSC) }, +}; + +/* + * Clock peripheral IDs which sadly don't match up with PERIPH_ID. This is + * not in the header file since it is for purely internal use - we want + * callers to use the PERIPH_ID for all access to peripheral clocks to avoid + * confusion bewteen PERIPH_ID_... and PERIPHC_... + * + * We don't call this CLOCK_PERIPH_ID or PERIPH_CLOCK_ID as it would just be + * confusing. + * + * Note to SOC vendors: perhaps define a unified numbering for peripherals and + * use it for reset, clock enable, clock source/divider and even pinmuxing + * if you can. + */ +enum periphc_internal_id { + /* 0x00 */ + PERIPHC_I2S1, + PERIPHC_I2S2, + PERIPHC_SPDIF_OUT, + PERIPHC_SPDIF_IN, + PERIPHC_PWM, + PERIPHC_SPI1, + PERIPHC_SPI2, + PERIPHC_SPI3, + + /* 0x08 */ + PERIPHC_XIO, + PERIPHC_I2C1, + PERIPHC_DVC_I2C, + PERIPHC_TWC, + PERIPHC_0c, + PERIPHC_10, /* PERIPHC_SPI1, what is this really? */ + PERIPHC_DISP1, + PERIPHC_DISP2, + + /* 0x10 */ + PERIPHC_CVE, + PERIPHC_IDE0, + PERIPHC_VI, + PERIPHC_1c, + PERIPHC_SDMMC1, + PERIPHC_SDMMC2, + PERIPHC_G3D, + PERIPHC_G2D, + + /* 0x18 */ + PERIPHC_NDFLASH, + PERIPHC_SDMMC4, + PERIPHC_VFIR, + PERIPHC_EPP, + PERIPHC_MPE, + PERIPHC_MIPI, + PERIPHC_UART1, + PERIPHC_UART2, + + /* 0x20 */ + PERIPHC_HOST1X, + PERIPHC_21, + PERIPHC_TVO, + PERIPHC_HDMI, + PERIPHC_24, + PERIPHC_TVDAC, + PERIPHC_I2C2, + PERIPHC_EMC, + + /* 0x28 */ + PERIPHC_UART3, + PERIPHC_29, + PERIPHC_VI_SENSOR, + PERIPHC_2b, + PERIPHC_2c, + PERIPHC_SPI4, + PERIPHC_I2C3, + PERIPHC_SDMMC3, + + /* 0x30 */ + PERIPHC_UART4, + PERIPHC_UART5, + PERIPHC_VDE, + PERIPHC_OWR, + PERIPHC_NOR, + PERIPHC_CSITE, + + PERIPHC_COUNT, + + PERIPHC_NONE = -1, +}; + +/* + * Clock type for each peripheral clock source. We put the name in each + * record just so it is easy to match things up + */ +#define TYPE(name, type) type +static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = { + /* 0x00 */ + TYPE(PERIPHC_I2S1, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2S2, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_OUT, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_IN, CLOCK_TYPE_PCM), + TYPE(PERIPHC_PWM, CLOCK_TYPE_PCXTS), + TYPE(PERIPHC_SPI1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SPI22, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SPI3, CLOCK_TYPE_PCMT), + + /* 0x08 */ + TYPE(PERIPHC_XIO, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2C1, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_DVC_I2C, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_TWC, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SPI1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_DISP1, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_DISP2, CLOCK_TYPE_PDCT), + + /* 0x10 */ + TYPE(PERIPHC_CVE, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_IDE0, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SDMMC1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SDMMC2, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_G3D, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_G2D, CLOCK_TYPE_MCPA), + + /* 0x18 */ + TYPE(PERIPHC_NDFLASH, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SDMMC4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_VFIR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_EPP, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MPE, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MIPI, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_UART1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_UART2, CLOCK_TYPE_PCMT), + + /* 0x20 */ + TYPE(PERIPHC_HOST1X, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_TVO, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_HDMI, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_TVDAC, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_I2C2, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_EMC, CLOCK_TYPE_MCPT), + + /* 0x28 */ + TYPE(PERIPHC_UART3, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SPI4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2C3, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_SDMMC3, CLOCK_TYPE_PCMT), + + /* 0x30 */ + TYPE(PERIPHC_UART4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_UART5, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_VDE, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_OWR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NOR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_CSITE, CLOCK_TYPE_PCMT), +}; + +/* + * This array translates a periph_id to a periphc_internal_id + * + * Not present/matched up: + * uint vi_sensor; _VI_SENSOR_0, 0x1A8 + * SPDIF - which is both 0x08 and 0x0c + * + */ +#define NONE(name) (-1) +#define OFFSET(name, value) PERIPHC_ ## name +static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = { + /* Low word: 31:0 */ + NONE(CPU), + NONE(RESERVED1), + NONE(RESERVED2), + NONE(AC97), + NONE(RTC), + NONE(TMR), + PERIPHC_UART1, + PERIPHC_UART2, /* and vfir 0x68 */ + + /* 0x08 */ + NONE(GPIO), + PERIPHC_SDMMC2, + NONE(SPDIF), /* 0x08 and 0x0c, unclear which to use */ + PERIPHC_I2S1, + PERIPHC_I2C1, + PERIPHC_NDFLASH, + PERIPHC_SDMMC1, + PERIPHC_SDMMC4, + + /* 0x10 */ + PERIPHC_TWC, + PERIPHC_PWM, + PERIPHC_I2S2, + PERIPHC_EPP, + PERIPHC_VI, + PERIPHC_G2D, + NONE(USBD), + NONE(ISP), + + /* 0x18 */ + PERIPHC_G3D, + PERIPHC_IDE0, + PERIPHC_DISP2, + PERIPHC_DISP1, + PERIPHC_HOST1X, + NONE(VCP), + NONE(RESERVED30), + NONE(CACHE2), + + /* Middle word: 63:32 */ + NONE(MEM), + NONE(AHBDMA), + NONE(APBDMA), + NONE(RESERVED35), + NONE(KBC), + NONE(STAT_MON), + NONE(PMC), + NONE(FUSE), + + /* 0x28 */ + NONE(KFUSE), + NONE(SBC1), /* SBC1, 0x34, is this SPI1? */ + PERIPHC_NOR, + PERIPHC_SPI1, + PERIPHC_SPI2, + PERIPHC_XIO, + PERIPHC_SPI3, + PERIPHC_DVC_I2C, + + /* 0x30 */ + NONE(DSI), + PERIPHC_TVO, /* also CVE 0x40 */ + PERIPHC_MIPI, + PERIPHC_HDMI, + PERIPHC_CSITE, + PERIPHC_TVDAC, + PERIPHC_I2C2, + PERIPHC_UART3, + + /* 0x38 */ + NONE(RESERVED56), + PERIPHC_EMC, + NONE(USB2), + NONE(USB3), + PERIPHC_MPE, + PERIPHC_VDE, + NONE(BSEA), + NONE(BSEV), + + /* Upper word 95:64 */ + NONE(SPEEDO), + PERIPHC_UART4, + PERIPHC_UART5, + PERIPHC_I2C3, + PERIPHC_SPI4, + PERIPHC_SDMMC3, + NONE(PCIE), + PERIPHC_OWR, + + /* 0x48 */ + NONE(AFI), + NONE(CORESIGHT), + NONE(PCIEXCLK), + NONE(AVPUCQ), + NONE(RESERVED76), + NONE(RESERVED77), + NONE(RESERVED78), + NONE(RESERVED79), + + /* 0x50 */ + NONE(RESERVED80), + NONE(RESERVED81), + NONE(RESERVED82), + NONE(RESERVED83), + NONE(IRAMA), + NONE(IRAMB), + NONE(IRAMC), + NONE(IRAMD), + + /* 0x58 */ + NONE(CRAM2), +}; + +/* + * Get the oscillator frequency, from the corresponding hardware configuration + * field. T20 has 4 frequencies that it supports. + */ +enum clock_osc_freq clock_get_osc_freq(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + reg = readl(&clkrst->crc_osc_ctrl); + return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; +} + +/* Returns a pointer to the clock source register for a peripheral */ +u32 *get_periph_source_reg(enum periph_id periph_id) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + enum periphc_internal_id internal_id; + + assert(clock_periph_id_isvalid(periph_id)); + internal_id = periph_id_to_internal_id[periph_id]; + assert(internal_id != -1); + return &clkrst->crc_clk_src[internal_id]; +} + +/** + * Given a peripheral ID and the required source clock, this returns which + * value should be programmed into the source mux for that peripheral. + * + * There is special code here to handle the one source type with 5 sources. + * + * @param periph_id peripheral to start + * @param source PLL id of required parent clock + * @param mux_bits Set to number of bits in mux register: 2 or 4 + * @param divider_bits Set to number of divider bits (8 or 16) + * @return mux value (0-4, or -1 if not found) + */ +int get_periph_clock_source(enum periph_id periph_id, + enum clock_id parent, int *mux_bits, int *divider_bits) +{ + enum clock_type_id type; + enum periphc_internal_id internal_id; + int mux; + + assert(clock_periph_id_isvalid(periph_id)); + + internal_id = periph_id_to_internal_id[periph_id]; + assert(periphc_internal_id_isvalid(internal_id)); + + type = clock_periph_type[internal_id]; + assert(clock_type_id_isvalid(type)); + + /* + * Special cases here for the clock with a 4-bit source mux and I2C + * with its 16-bit divisor + */ + if (type == CLOCK_TYPE_PCXTS) + *mux_bits = MASK_BITS_31_28; + else + *mux_bits = MASK_BITS_31_30; + if (type == CLOCK_TYPE_PCMT16) + *divider_bits = 16; + else + *divider_bits = 8; + + for (mux = 0; mux < CLOCK_MAX_MUX; mux++) + if (clock_source[type][mux] == parent) + return mux; + + /* + * Not found: it might be looking for the 'S' in CLOCK_TYPE_PCXTS + * which is not in our table. If not, then they are asking for a + * source which this peripheral can't access through its mux. + */ + assert(type == CLOCK_TYPE_PCXTS); + assert(parent == CLOCK_ID_SFROM32KHZ); + if (type == CLOCK_TYPE_PCXTS && parent == CLOCK_ID_SFROM32KHZ) + return 4; /* mux value for this clock */ + + /* if we get here, either us or the caller has made a mistake */ + printf("Caller requested bad clock: periph=%d, parent=%d\n", periph_id, + parent); + return -1; +} + +void clock_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)]; + u32 reg; + + /* Enable/disable the clock to this peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + reg = readl(clk); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, clk); +} + +void reset_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)]; + u32 reg; + + /* Enable/disable reset to the peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + reg = readl(reset); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, reset); +} + +#ifdef CONFIG_OF_CONTROL +/* + * Convert a device tree clock ID to our peripheral ID. They are mostly + * the same but we are very cautious so we check that a valid clock ID is + * provided. + * + * @param clk_id Clock ID according to tegra20 device tree binding + * @return peripheral ID, or PERIPH_ID_NONE if the clock ID is invalid + */ +enum periph_id clk_id_to_periph_id(int clk_id) +{ + if (clk_id > PERIPH_ID_COUNT) + return PERIPH_ID_NONE; + + switch (clk_id) { + case PERIPH_ID_RESERVED1: + case PERIPH_ID_RESERVED2: + case PERIPH_ID_RESERVED30: + case PERIPH_ID_RESERVED35: + case PERIPH_ID_RESERVED56: + case PERIPH_ID_PCIEXCLK: + case PERIPH_ID_RESERVED76: + case PERIPH_ID_RESERVED77: + case PERIPH_ID_RESERVED78: + case PERIPH_ID_RESERVED79: + case PERIPH_ID_RESERVED80: + case PERIPH_ID_RESERVED81: + case PERIPH_ID_RESERVED82: + case PERIPH_ID_RESERVED83: + case PERIPH_ID_RESERVED91: + return PERIPH_ID_NONE; + default: + return clk_id; + } +} +#endif /* CONFIG_OF_CONTROL */ + +void clock_early_init(void) +{ + /* + * PLLP output frequency set to 216MHz + * PLLC output frequency set to 600Mhz + * + * TODO: Can we calculate these values instead of hard-coding? + */ + switch (clock_get_osc_freq()) { + case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */ + clock_set_rate(CLOCK_ID_PERIPH, 432, 12, 1, 8); + clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8); + break; + + case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */ + clock_set_rate(CLOCK_ID_PERIPH, 432, 26, 1, 8); + clock_set_rate(CLOCK_ID_CGENERAL, 600, 26, 0, 8); + break; + + case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */ + clock_set_rate(CLOCK_ID_PERIPH, 432, 13, 1, 8); + clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8); + break; + case CLOCK_OSC_FREQ_19_2: + default: + /* + * These are not supported. It is too early to print a + * message and the UART likely won't work anyway due to the + * oscillator being wrong. + */ + break; + } +} + +void arch_timer_init(void) +{ +} + +#define PMC_SATA_PWRGT 0x1ac +#define PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE (1 << 5) +#define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL (1 << 4) + +#define PLLE_SS_CNTL 0x68 +#define PLLE_SS_CNTL_SSCINCINTRV(x) (((x) & 0x3f) << 24) +#define PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16) +#define PLLE_SS_CNTL_SSCBYP (1 << 12) +#define PLLE_SS_CNTL_INTERP_RESET (1 << 11) +#define PLLE_SS_CNTL_BYPASS_SS (1 << 10) +#define PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0) + +#define PLLE_BASE 0x0e8 +#define PLLE_BASE_ENABLE_CML (1 << 31) +#define PLLE_BASE_ENABLE (1 << 30) +#define PLLE_BASE_PLDIV_CML(x) (((x) & 0xf) << 24) +#define PLLE_BASE_PLDIV(x) (((x) & 0x3f) << 16) +#define PLLE_BASE_NDIV(x) (((x) & 0xff) << 8) +#define PLLE_BASE_MDIV(x) (((x) & 0xff) << 0) + +#define PLLE_MISC 0x0ec +#define PLLE_MISC_SETUP_BASE(x) (((x) & 0xffff) << 16) +#define PLLE_MISC_PLL_READY (1 << 15) +#define PLLE_MISC_LOCK (1 << 11) +#define PLLE_MISC_LOCK_ENABLE (1 << 9) +#define PLLE_MISC_SETUP_EXT(x) (((x) & 0x3) << 2) + +static int tegra_plle_train(void) +{ + unsigned int timeout = 2000; + unsigned long value; + + value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT); + value |= PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE; + writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT); + + value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT); + value |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL; + writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT); + + value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT); + value &= ~PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE; + writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT); + + do { + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + if (value & PLLE_MISC_PLL_READY) + break; + + udelay(100); + } while (--timeout); + + if (timeout == 0) { + error("timeout waiting for PLLE to become ready"); + return -ETIMEDOUT; + } + + return 0; +} + +int tegra_plle_enable(void) +{ + unsigned int timeout = 1000; + u32 value; + int err; + + /* disable PLLE clock */ + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + value &= ~PLLE_BASE_ENABLE_CML; + value &= ~PLLE_BASE_ENABLE; + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + /* clear lock enable and setup field */ + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + value &= ~PLLE_MISC_LOCK_ENABLE; + value &= ~PLLE_MISC_SETUP_BASE(0xffff); + value &= ~PLLE_MISC_SETUP_EXT(0x3); + writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + if ((value & PLLE_MISC_PLL_READY) == 0) { + err = tegra_plle_train(); + if (err < 0) { + error("failed to train PLLE: %d", err); + return err; + } + } + + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + value |= PLLE_MISC_SETUP_BASE(0x7); + value |= PLLE_MISC_LOCK_ENABLE; + value |= PLLE_MISC_SETUP_EXT(0); + writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value |= PLLE_SS_CNTL_SSCBYP | PLLE_SS_CNTL_INTERP_RESET | + PLLE_SS_CNTL_BYPASS_SS; + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + value |= PLLE_BASE_ENABLE_CML | PLLE_BASE_ENABLE; + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + do { + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + if (value & PLLE_MISC_LOCK) + break; + + udelay(2); + } while (--timeout); + + if (timeout == 0) { + error("timeout waiting for PLLE to lock"); + return -ETIMEDOUT; + } + + udelay(50); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value &= ~PLLE_SS_CNTL_SSCINCINTRV(0x3f); + value |= PLLE_SS_CNTL_SSCINCINTRV(0x18); + + value &= ~PLLE_SS_CNTL_SSCINC(0xff); + value |= PLLE_SS_CNTL_SSCINC(0x01); + + value &= ~PLLE_SS_CNTL_SSCBYP; + value &= ~PLLE_SS_CNTL_INTERP_RESET; + value &= ~PLLE_SS_CNTL_BYPASS_SS; + + value &= ~PLLE_SS_CNTL_SSCMAX(0x1ff); + value |= PLLE_SS_CNTL_SSCMAX(0x24); + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + return 0; +} diff --git a/arch/arm/mach-tegra/tegra20/cpu.c b/arch/arm/mach-tegra/tegra20/cpu.c new file mode 100644 index 0000000000..67f49d7756 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/cpu.c @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/pmc.h> +#include "../cpu.h" + +static void enable_cpu_power_rail(void) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 reg; + + reg = readl(&pmc->pmc_cntrl); + reg |= CPUPWRREQ_OE; + writel(reg, &pmc->pmc_cntrl); + + /* + * The TI PMU65861C needs a 3.75ms delay between enabling + * the power rail and enabling the CPU clock. This delay + * between SM1EN and SM1 is for switching time + the ramp + * up of the voltage to the CPU (VDD_CPU from PMU). + */ + udelay(3750); +} + +void start_cpu(u32 reset_vector) +{ + /* Enable VDD_CPU */ + enable_cpu_power_rail(); + + /* Hold the CPUs in reset */ + reset_A9_cpu(1); + + /* Disable the CPU clock */ + enable_cpu_clock(0); + + /* Enable CoreSight */ + clock_enable_coresight(1); + + /* + * Set the entry point for CPU execution from reset, + * if it's a non-zero value. + */ + if (reset_vector) + writel(reset_vector, EXCEP_VECTOR_CPU_RESET_VECTOR); + + /* Enable the CPU clock */ + enable_cpu_clock(1); + + /* If the CPU doesn't already have power, power it up */ + powerup_cpu(); + + /* Take the CPU out of reset */ + reset_A9_cpu(0); +} diff --git a/arch/arm/mach-tegra/tegra20/crypto.c b/arch/arm/mach-tegra/tegra20/crypto.c new file mode 100644 index 0000000000..ec95d7ceb1 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/crypto.c @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * (C) Copyright 2010 - 2011 NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/errno.h> +#include "crypto.h" +#include "aes.h" + +static u8 zero_key[16]; + +#define AES_CMAC_CONST_RB 0x87 /* from RFC 4493, Figure 2.2 */ + +enum security_op { + SECURITY_SIGN = 1 << 0, /* Sign the data */ + SECURITY_ENCRYPT = 1 << 1, /* Encrypt the data */ +}; + +/** + * Shift a vector left by one bit + * + * \param in Input vector + * \param out Output vector + * \param size Length of vector in bytes + */ +static void left_shift_vector(u8 *in, u8 *out, int size) +{ + int carry = 0; + int i; + + for (i = size - 1; i >= 0; i--) { + out[i] = (in[i] << 1) | carry; + carry = in[i] >> 7; /* get most significant bit */ + } +} + +/** + * Sign a block of data, putting the result into dst. + * + * \param key Input AES key, length AES_KEY_LENGTH + * \param key_schedule Expanded key to use + * \param src Source data of length 'num_aes_blocks' blocks + * \param dst Destination buffer, length AES_KEY_LENGTH + * \param num_aes_blocks Number of AES blocks to encrypt + */ +static void sign_object(u8 *key, u8 *key_schedule, u8 *src, u8 *dst, + u32 num_aes_blocks) +{ + u8 tmp_data[AES_KEY_LENGTH]; + u8 left[AES_KEY_LENGTH]; + u8 k1[AES_KEY_LENGTH]; + u8 *cbc_chain_data; + unsigned i; + + cbc_chain_data = zero_key; /* Convenient array of 0's for IV */ + + /* compute K1 constant needed by AES-CMAC calculation */ + for (i = 0; i < AES_KEY_LENGTH; i++) + tmp_data[i] = 0; + + aes_cbc_encrypt_blocks(key_schedule, tmp_data, left, 1); + + left_shift_vector(left, k1, sizeof(left)); + + if ((left[0] >> 7) != 0) /* get MSB of L */ + k1[AES_KEY_LENGTH-1] ^= AES_CMAC_CONST_RB; + + /* compute the AES-CMAC value */ + for (i = 0; i < num_aes_blocks; i++) { + /* Apply the chain data */ + aes_apply_cbc_chain_data(cbc_chain_data, src, tmp_data); + + /* for the final block, XOR K1 into the IV */ + if (i == num_aes_blocks - 1) + aes_apply_cbc_chain_data(tmp_data, k1, tmp_data); + + /* encrypt the AES block */ + aes_encrypt(tmp_data, key_schedule, dst); + + debug("sign_obj: block %d of %d\n", i, num_aes_blocks); + + /* Update pointers for next loop. */ + cbc_chain_data = dst; + src += AES_KEY_LENGTH; + } +} + +/** + * Encrypt and sign a block of data (depending on security mode). + * + * \param key Input AES key, length AES_KEY_LENGTH + * \param oper Security operations mask to perform (enum security_op) + * \param src Source data + * \param length Size of source data + * \param sig_dst Destination address for signature, AES_KEY_LENGTH bytes + */ +static int encrypt_and_sign(u8 *key, enum security_op oper, u8 *src, + u32 length, u8 *sig_dst) +{ + u32 num_aes_blocks; + u8 key_schedule[AES_EXPAND_KEY_LENGTH]; + + debug("encrypt_and_sign: length = %d\n", length); + + /* + * The only need for a key is for signing/checksum purposes, so + * if not encrypting, expand a key of 0s. + */ + aes_expand_key(oper & SECURITY_ENCRYPT ? key : zero_key, key_schedule); + + num_aes_blocks = (length + AES_KEY_LENGTH - 1) / AES_KEY_LENGTH; + + if (oper & SECURITY_ENCRYPT) { + /* Perform this in place, resulting in src being encrypted. */ + debug("encrypt_and_sign: begin encryption\n"); + aes_cbc_encrypt_blocks(key_schedule, src, src, num_aes_blocks); + debug("encrypt_and_sign: end encryption\n"); + } + + if (oper & SECURITY_SIGN) { + /* encrypt the data, overwriting the result in signature. */ + debug("encrypt_and_sign: begin signing\n"); + sign_object(key, key_schedule, src, sig_dst, num_aes_blocks); + debug("encrypt_and_sign: end signing\n"); + } + + return 0; +} + +int sign_data_block(u8 *source, unsigned length, u8 *signature) +{ + return encrypt_and_sign(zero_key, SECURITY_SIGN, source, + length, signature); +} diff --git a/arch/arm/mach-tegra/tegra20/crypto.h b/arch/arm/mach-tegra/tegra20/crypto.h new file mode 100644 index 0000000000..f59b92768a --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/crypto.h @@ -0,0 +1,20 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * (C) Copyright 2010 - 2011 NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _CRYPTO_H_ +#define _CRYPTO_H_ + +/** + * Sign a block of data + * + * \param source Source data + * \param length Size of source data + * \param signature Destination address for signature, AES_KEY_LENGTH bytes + */ +int sign_data_block(u8 *source, unsigned length, u8 *signature); + +#endif /* #ifndef _CRYPTO_H_ */ diff --git a/arch/arm/mach-tegra/tegra20/display.c b/arch/arm/mach-tegra/tegra20/display.c new file mode 100644 index 0000000000..61efed6464 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/display.c @@ -0,0 +1,394 @@ +/* + * (C) Copyright 2010 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/tegra.h> +#include <asm/arch/display.h> +#include <asm/arch/dc.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/timer.h> + +static struct fdt_disp_config config; + +static void update_window(struct dc_ctlr *dc, struct disp_ctl_win *win) +{ + unsigned h_dda, v_dda; + unsigned long val; + + val = readl(&dc->cmd.disp_win_header); + val |= WINDOW_A_SELECT; + writel(val, &dc->cmd.disp_win_header); + + writel(win->fmt, &dc->win.color_depth); + + clrsetbits_le32(&dc->win.byte_swap, BYTE_SWAP_MASK, + BYTE_SWAP_NOSWAP << BYTE_SWAP_SHIFT); + + val = win->out_x << H_POSITION_SHIFT; + val |= win->out_y << V_POSITION_SHIFT; + writel(val, &dc->win.pos); + + val = win->out_w << H_SIZE_SHIFT; + val |= win->out_h << V_SIZE_SHIFT; + writel(val, &dc->win.size); + + val = (win->w * win->bpp / 8) << H_PRESCALED_SIZE_SHIFT; + val |= win->h << V_PRESCALED_SIZE_SHIFT; + writel(val, &dc->win.prescaled_size); + + writel(0, &dc->win.h_initial_dda); + writel(0, &dc->win.v_initial_dda); + + h_dda = (win->w * 0x1000) / max(win->out_w - 1, 1U); + v_dda = (win->h * 0x1000) / max(win->out_h - 1, 1U); + + val = h_dda << H_DDA_INC_SHIFT; + val |= v_dda << V_DDA_INC_SHIFT; + writel(val, &dc->win.dda_increment); + + writel(win->stride, &dc->win.line_stride); + writel(0, &dc->win.buf_stride); + + val = WIN_ENABLE; + if (win->bpp < 24) + val |= COLOR_EXPAND; + writel(val, &dc->win.win_opt); + + writel((unsigned long)win->phys_addr, &dc->winbuf.start_addr); + writel(win->x, &dc->winbuf.addr_h_offset); + writel(win->y, &dc->winbuf.addr_v_offset); + + writel(0xff00, &dc->win.blend_nokey); + writel(0xff00, &dc->win.blend_1win); + + val = GENERAL_ACT_REQ | WIN_A_ACT_REQ; + val |= GENERAL_UPDATE | WIN_A_UPDATE; + writel(val, &dc->cmd.state_ctrl); +} + +static void write_pair(struct fdt_disp_config *config, int item, u32 *reg) +{ + writel(config->horiz_timing[item] | + (config->vert_timing[item] << 16), reg); +} + +static int update_display_mode(struct dc_disp_reg *disp, + struct fdt_disp_config *config) +{ + unsigned long val; + unsigned long rate; + unsigned long div; + + writel(0x0, &disp->disp_timing_opt); + write_pair(config, FDT_LCD_TIMING_REF_TO_SYNC, &disp->ref_to_sync); + write_pair(config, FDT_LCD_TIMING_SYNC_WIDTH, &disp->sync_width); + write_pair(config, FDT_LCD_TIMING_BACK_PORCH, &disp->back_porch); + write_pair(config, FDT_LCD_TIMING_FRONT_PORCH, &disp->front_porch); + + writel(config->width | (config->height << 16), &disp->disp_active); + + val = DE_SELECT_ACTIVE << DE_SELECT_SHIFT; + val |= DE_CONTROL_NORMAL << DE_CONTROL_SHIFT; + writel(val, &disp->data_enable_opt); + + val = DATA_FORMAT_DF1P1C << DATA_FORMAT_SHIFT; + val |= DATA_ALIGNMENT_MSB << DATA_ALIGNMENT_SHIFT; + val |= DATA_ORDER_RED_BLUE << DATA_ORDER_SHIFT; + writel(val, &disp->disp_interface_ctrl); + + /* + * The pixel clock divider is in 7.1 format (where the bottom bit + * represents 0.5). Here we calculate the divider needed to get from + * the display clock (typically 600MHz) to the pixel clock. We round + * up or down as requried. + */ + rate = clock_get_periph_rate(PERIPH_ID_DISP1, CLOCK_ID_CGENERAL); + div = ((rate * 2 + config->pixel_clock / 2) / config->pixel_clock) - 2; + debug("Display clock %lu, divider %lu\n", rate, div); + + writel(0x00010001, &disp->shift_clk_opt); + + val = PIXEL_CLK_DIVIDER_PCD1 << PIXEL_CLK_DIVIDER_SHIFT; + val |= div << SHIFT_CLK_DIVIDER_SHIFT; + writel(val, &disp->disp_clk_ctrl); + + return 0; +} + +/* Start up the display and turn on power to PWMs */ +static void basic_init(struct dc_cmd_reg *cmd) +{ + u32 val; + + writel(0x00000100, &cmd->gen_incr_syncpt_ctrl); + writel(0x0000011a, &cmd->cont_syncpt_vsync); + writel(0x00000000, &cmd->int_type); + writel(0x00000000, &cmd->int_polarity); + writel(0x00000000, &cmd->int_mask); + writel(0x00000000, &cmd->int_enb); + + val = PW0_ENABLE | PW1_ENABLE | PW2_ENABLE; + val |= PW3_ENABLE | PW4_ENABLE | PM0_ENABLE; + val |= PM1_ENABLE; + writel(val, &cmd->disp_pow_ctrl); + + val = readl(&cmd->disp_cmd); + val |= CTRL_MODE_C_DISPLAY << CTRL_MODE_SHIFT; + writel(val, &cmd->disp_cmd); +} + +static void basic_init_timer(struct dc_disp_reg *disp) +{ + writel(0x00000020, &disp->mem_high_pri); + writel(0x00000001, &disp->mem_high_pri_timer); +} + +static const u32 rgb_enb_tab[PIN_REG_COUNT] = { + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, +}; + +static const u32 rgb_polarity_tab[PIN_REG_COUNT] = { + 0x00000000, + 0x01000000, + 0x00000000, + 0x00000000, +}; + +static const u32 rgb_data_tab[PIN_REG_COUNT] = { + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, +}; + +static const u32 rgb_sel_tab[PIN_OUTPUT_SEL_COUNT] = { + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00210222, + 0x00002200, + 0x00020000, +}; + +static void rgb_enable(struct dc_com_reg *com) +{ + int i; + + for (i = 0; i < PIN_REG_COUNT; i++) { + writel(rgb_enb_tab[i], &com->pin_output_enb[i]); + writel(rgb_polarity_tab[i], &com->pin_output_polarity[i]); + writel(rgb_data_tab[i], &com->pin_output_data[i]); + } + + for (i = 0; i < PIN_OUTPUT_SEL_COUNT; i++) + writel(rgb_sel_tab[i], &com->pin_output_sel[i]); +} + +static int setup_window(struct disp_ctl_win *win, + struct fdt_disp_config *config) +{ + win->x = 0; + win->y = 0; + win->w = config->width; + win->h = config->height; + win->out_x = 0; + win->out_y = 0; + win->out_w = config->width; + win->out_h = config->height; + win->phys_addr = config->frame_buffer; + win->stride = config->width * (1 << config->log2_bpp) / 8; + debug("%s: depth = %d\n", __func__, config->log2_bpp); + switch (config->log2_bpp) { + case 5: + case 24: + win->fmt = COLOR_DEPTH_R8G8B8A8; + win->bpp = 32; + break; + case 4: + win->fmt = COLOR_DEPTH_B5G6R5; + win->bpp = 16; + break; + + default: + debug("Unsupported LCD bit depth"); + return -1; + } + + return 0; +} + +struct fdt_disp_config *tegra_display_get_config(void) +{ + return config.valid ? &config : NULL; +} + +static void debug_timing(const char *name, unsigned int timing[]) +{ +#ifdef DEBUG + int i; + + debug("%s timing: ", name); + for (i = 0; i < FDT_LCD_TIMING_COUNT; i++) + debug("%d ", timing[i]); + debug("\n"); +#endif +} + +/** + * Decode panel information from the fdt, according to a standard binding + * + * @param blob fdt blob + * @param node offset of fdt node to read from + * @param config structure to store fdt config into + * @return 0 if ok, -ve on error + */ +static int tegra_decode_panel(const void *blob, int node, + struct fdt_disp_config *config) +{ + int front, back, ref; + + config->width = fdtdec_get_int(blob, node, "xres", -1); + config->height = fdtdec_get_int(blob, node, "yres", -1); + config->pixel_clock = fdtdec_get_int(blob, node, "clock", 0); + if (!config->pixel_clock || config->width == -1 || + config->height == -1) { + debug("%s: Pixel parameters missing\n", __func__); + return -FDT_ERR_NOTFOUND; + } + + back = fdtdec_get_int(blob, node, "left-margin", -1); + front = fdtdec_get_int(blob, node, "right-margin", -1); + ref = fdtdec_get_int(blob, node, "hsync-len", -1); + if ((back | front | ref) == -1) { + debug("%s: Horizontal parameters missing\n", __func__); + return -FDT_ERR_NOTFOUND; + } + + /* Use a ref-to-sync of 1 always, and take this from the front porch */ + config->horiz_timing[FDT_LCD_TIMING_REF_TO_SYNC] = 1; + config->horiz_timing[FDT_LCD_TIMING_SYNC_WIDTH] = ref; + config->horiz_timing[FDT_LCD_TIMING_BACK_PORCH] = back; + config->horiz_timing[FDT_LCD_TIMING_FRONT_PORCH] = front - + config->horiz_timing[FDT_LCD_TIMING_REF_TO_SYNC]; + debug_timing("horiz", config->horiz_timing); + + back = fdtdec_get_int(blob, node, "upper-margin", -1); + front = fdtdec_get_int(blob, node, "lower-margin", -1); + ref = fdtdec_get_int(blob, node, "vsync-len", -1); + if ((back | front | ref) == -1) { + debug("%s: Vertical parameters missing\n", __func__); + return -FDT_ERR_NOTFOUND; + } + + config->vert_timing[FDT_LCD_TIMING_REF_TO_SYNC] = 1; + config->vert_timing[FDT_LCD_TIMING_SYNC_WIDTH] = ref; + config->vert_timing[FDT_LCD_TIMING_BACK_PORCH] = back; + config->vert_timing[FDT_LCD_TIMING_FRONT_PORCH] = front - + config->vert_timing[FDT_LCD_TIMING_REF_TO_SYNC]; + debug_timing("vert", config->vert_timing); + + return 0; +} + +/** + * Decode the display controller information from the fdt. + * + * @param blob fdt blob + * @param config structure to store fdt config into + * @return 0 if ok, -ve on error + */ +static int tegra_display_decode_config(const void *blob, + struct fdt_disp_config *config) +{ + int node, rgb; + int bpp, bit; + + /* TODO: Support multiple controllers */ + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA20_DC); + if (node < 0) { + debug("%s: Cannot find display controller node in fdt\n", + __func__); + return node; + } + config->disp = (struct disp_ctlr *)fdtdec_get_addr(blob, node, "reg"); + if (!config->disp) { + debug("%s: No display controller address\n", __func__); + return -1; + } + + rgb = fdt_subnode_offset(blob, node, "rgb"); + + config->panel_node = fdtdec_lookup_phandle(blob, rgb, "nvidia,panel"); + if (config->panel_node < 0) { + debug("%s: Cannot find panel information\n", __func__); + return -1; + } + + if (tegra_decode_panel(blob, config->panel_node, config)) { + debug("%s: Failed to decode panel information\n", __func__); + return -1; + } + + bpp = fdtdec_get_int(blob, config->panel_node, "nvidia,bits-per-pixel", + -1); + bit = ffs(bpp) - 1; + if (bpp == (1 << bit)) + config->log2_bpp = bit; + else + config->log2_bpp = bpp; + if (bpp == -1) { + debug("%s: Pixel bpp parameters missing\n", __func__); + return -FDT_ERR_NOTFOUND; + } + config->bpp = bpp; + + config->valid = 1; /* we have a valid configuration */ + + return 0; +} + +int tegra_display_probe(const void *blob, void *default_lcd_base) +{ + struct disp_ctl_win window; + struct dc_ctlr *dc; + + if (tegra_display_decode_config(blob, &config)) + return -1; + + config.frame_buffer = (u32)default_lcd_base; + + dc = (struct dc_ctlr *)config.disp; + + /* + * A header file for clock constants was NAKed upstream. + * TODO: Put this into the FDT and fdt_lcd struct when we have clock + * support there + */ + clock_start_periph_pll(PERIPH_ID_HOST1X, CLOCK_ID_PERIPH, + 144 * 1000000); + clock_start_periph_pll(PERIPH_ID_DISP1, CLOCK_ID_CGENERAL, + 600 * 1000000); + basic_init(&dc->cmd); + basic_init_timer(&dc->disp); + rgb_enable(&dc->com); + + if (config.pixel_clock) + update_display_mode(&dc->disp, &config); + + if (setup_window(&window, &config)) + return -1; + + update_window(dc, &window); + + return 0; +} diff --git a/arch/arm/mach-tegra/tegra20/emc.c b/arch/arm/mach-tegra/tegra20/emc.c new file mode 100644 index 0000000000..ed2462ab0f --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/emc.c @@ -0,0 +1,270 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <fdtdec.h> +#include <asm/io.h> +#include <asm/arch-tegra/ap.h> +#include <asm/arch-tegra/apb_misc.h> +#include <asm/arch/clock.h> +#include <asm/arch/emc.h> +#include <asm/arch/tegra.h> + +/* + * The EMC registers have shadow registers. When the EMC clock is updated + * in the clock controller, the shadow registers are copied to the active + * registers, allowing glitchless memory bus frequency changes. + * This function updates the shadow registers for a new clock frequency, + * and relies on the clock lock on the emc clock to avoid races between + * multiple frequency changes + */ + +/* + * This table defines the ordering of the registers provided to + * tegra_set_mmc() + * TODO: Convert to fdt version once available + */ +static const unsigned long emc_reg_addr[TEGRA_EMC_NUM_REGS] = { + 0x2c, /* RC */ + 0x30, /* RFC */ + 0x34, /* RAS */ + 0x38, /* RP */ + 0x3c, /* R2W */ + 0x40, /* W2R */ + 0x44, /* R2P */ + 0x48, /* W2P */ + 0x4c, /* RD_RCD */ + 0x50, /* WR_RCD */ + 0x54, /* RRD */ + 0x58, /* REXT */ + 0x5c, /* WDV */ + 0x60, /* QUSE */ + 0x64, /* QRST */ + 0x68, /* QSAFE */ + 0x6c, /* RDV */ + 0x70, /* REFRESH */ + 0x74, /* BURST_REFRESH_NUM */ + 0x78, /* PDEX2WR */ + 0x7c, /* PDEX2RD */ + 0x80, /* PCHG2PDEN */ + 0x84, /* ACT2PDEN */ + 0x88, /* AR2PDEN */ + 0x8c, /* RW2PDEN */ + 0x90, /* TXSR */ + 0x94, /* TCKE */ + 0x98, /* TFAW */ + 0x9c, /* TRPAB */ + 0xa0, /* TCLKSTABLE */ + 0xa4, /* TCLKSTOP */ + 0xa8, /* TREFBW */ + 0xac, /* QUSE_EXTRA */ + 0x114, /* FBIO_CFG6 */ + 0xb0, /* ODT_WRITE */ + 0xb4, /* ODT_READ */ + 0x104, /* FBIO_CFG5 */ + 0x2bc, /* CFG_DIG_DLL */ + 0x2c0, /* DLL_XFORM_DQS */ + 0x2c4, /* DLL_XFORM_QUSE */ + 0x2e0, /* ZCAL_REF_CNT */ + 0x2e4, /* ZCAL_WAIT_CNT */ + 0x2a8, /* AUTO_CAL_INTERVAL */ + 0x2d0, /* CFG_CLKTRIM_0 */ + 0x2d4, /* CFG_CLKTRIM_1 */ + 0x2d8, /* CFG_CLKTRIM_2 */ +}; + +struct emc_ctlr *emc_get_controller(const void *blob) +{ + fdt_addr_t addr; + int node; + + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA20_EMC); + if (node > 0) { + addr = fdtdec_get_addr(blob, node, "reg"); + if (addr != FDT_ADDR_T_NONE) + return (struct emc_ctlr *)addr; + } + return NULL; +} + +/* Error codes we use */ +enum { + ERR_NO_EMC_NODE = -10, + ERR_NO_EMC_REG, + ERR_NO_FREQ, + ERR_FREQ_NOT_FOUND, + ERR_BAD_REGS, + ERR_NO_RAM_CODE, + ERR_RAM_CODE_NOT_FOUND, +}; + +/** + * Find EMC tables for the given ram code. + * + * The tegra EMC binding has two options, one using the ram code and one not. + * We detect which is in use by looking for the nvidia,use-ram-code property. + * If this is not present, then the EMC tables are directly below 'node', + * otherwise we select the correct emc-tables subnode based on the 'ram_code' + * value. + * + * @param blob Device tree blob + * @param node EMC node (nvidia,tegra20-emc compatible string) + * @param ram_code RAM code to select (0-3, or -1 if unknown) + * @return 0 if ok, otherwise a -ve ERR_ code (see enum above) + */ +static int find_emc_tables(const void *blob, int node, int ram_code) +{ + int need_ram_code; + int depth; + int offset; + + /* If we are using RAM codes, scan through the tables for our code */ + need_ram_code = fdtdec_get_bool(blob, node, "nvidia,use-ram-code"); + if (!need_ram_code) + return node; + if (ram_code == -1) { + debug("%s: RAM code required but not supplied\n", __func__); + return ERR_NO_RAM_CODE; + } + + offset = node; + depth = 0; + do { + /* + * Sadly there is no compatible string so we cannot use + * fdtdec_next_compatible_subnode(). + */ + offset = fdt_next_node(blob, offset, &depth); + if (depth <= 0) + break; + + /* Make sure this is a direct subnode */ + if (depth != 1) + continue; + if (strcmp("emc-tables", fdt_get_name(blob, offset, NULL))) + continue; + + if (fdtdec_get_int(blob, offset, "nvidia,ram-code", -1) + == ram_code) + return offset; + } while (1); + + debug("%s: Could not find tables for RAM code %d\n", __func__, + ram_code); + return ERR_RAM_CODE_NOT_FOUND; +} + +/** + * Decode the EMC node of the device tree, returning a pointer to the emc + * controller and the table to be used for the given rate. + * + * @param blob Device tree blob + * @param rate Clock speed of memory controller in Hz (=2x memory bus rate) + * @param emcp Returns address of EMC controller registers + * @param tablep Returns pointer to table to program into EMC. There are + * TEGRA_EMC_NUM_REGS entries, destined for offsets as per the + * emc_reg_addr array. + * @return 0 if ok, otherwise a -ve error code which will allow someone to + * figure out roughly what went wrong by looking at this code. + */ +static int decode_emc(const void *blob, unsigned rate, struct emc_ctlr **emcp, + const u32 **tablep) +{ + struct apb_misc_pp_ctlr *pp = + (struct apb_misc_pp_ctlr *)NV_PA_APB_MISC_BASE; + int ram_code; + int depth; + int node; + + ram_code = (readl(&pp->strapping_opt_a) & RAM_CODE_MASK) + >> RAM_CODE_SHIFT; + /* + * The EMC clock rate is twice the bus rate, and the bus rate is + * measured in kHz + */ + rate = rate / 2 / 1000; + + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA20_EMC); + if (node < 0) { + debug("%s: No EMC node found in FDT\n", __func__); + return ERR_NO_EMC_NODE; + } + *emcp = (struct emc_ctlr *)fdtdec_get_addr(blob, node, "reg"); + if (*emcp == (struct emc_ctlr *)FDT_ADDR_T_NONE) { + debug("%s: No EMC node reg property\n", __func__); + return ERR_NO_EMC_REG; + } + + /* Work out the parent node which contains our EMC tables */ + node = find_emc_tables(blob, node, ram_code & 3); + if (node < 0) + return node; + + depth = 0; + for (;;) { + int node_rate; + + node = fdtdec_next_compatible_subnode(blob, node, + COMPAT_NVIDIA_TEGRA20_EMC_TABLE, &depth); + if (node < 0) + break; + node_rate = fdtdec_get_int(blob, node, "clock-frequency", -1); + if (node_rate == -1) { + debug("%s: Missing clock-frequency\n", __func__); + return ERR_NO_FREQ; /* we expect this property */ + } + + if (node_rate == rate) + break; + } + if (node < 0) { + debug("%s: No node found for clock frequency %d\n", __func__, + rate); + return ERR_FREQ_NOT_FOUND; + } + + *tablep = fdtdec_locate_array(blob, node, "nvidia,emc-registers", + TEGRA_EMC_NUM_REGS); + if (!*tablep) { + debug("%s: node '%s' array missing / wrong size\n", __func__, + fdt_get_name(blob, node, NULL)); + return ERR_BAD_REGS; + } + + /* All seems well */ + return 0; +} + +int tegra_set_emc(const void *blob, unsigned rate) +{ + struct emc_ctlr *emc; + const u32 *table = NULL; + int err, i; + + err = decode_emc(blob, rate, &emc, &table); + if (err) { + debug("Warning: no valid EMC (%d), memory timings unset\n", + err); + return err; + } + + debug("%s: Table found, setting EMC values as follows:\n", __func__); + for (i = 0; i < TEGRA_EMC_NUM_REGS; i++) { + u32 value = fdt32_to_cpu(table[i]); + u32 addr = (uintptr_t)emc + emc_reg_addr[i]; + + debug(" %#x: %#x\n", addr, value); + writel(value, addr); + } + + /* trigger emc with new settings */ + clock_adjust_periph_pll_div(PERIPH_ID_EMC, CLOCK_ID_MEMORY, + clock_get_rate(CLOCK_ID_MEMORY), NULL); + debug("EMC clock set to %lu\n", + clock_get_periph_rate(PERIPH_ID_EMC, CLOCK_ID_MEMORY)); + + return 0; +} diff --git a/arch/arm/mach-tegra/tegra20/funcmux.c b/arch/arm/mach-tegra/tegra20/funcmux.c new file mode 100644 index 0000000000..0df4a0738d --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/funcmux.c @@ -0,0 +1,296 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* Tegra20 high-level function multiplexing */ +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/arch/funcmux.h> +#include <asm/arch/pinmux.h> + +/* + * The PINMUX macro is used to set up pinmux tables. + */ +#define PINMUX(grp, mux, pupd, tri) \ + {PMUX_PINGRP_##grp, PMUX_FUNC_##mux, PMUX_PULL_##pupd, PMUX_TRI_##tri} + +static const struct pmux_pingrp_config disp1_default[] = { + PINMUX(LDI, DISPA, NORMAL, NORMAL), + PINMUX(LHP0, DISPA, NORMAL, NORMAL), + PINMUX(LHP1, DISPA, NORMAL, NORMAL), + PINMUX(LHP2, DISPA, NORMAL, NORMAL), + PINMUX(LHS, DISPA, NORMAL, NORMAL), + PINMUX(LM0, RSVD4, NORMAL, NORMAL), + PINMUX(LPP, DISPA, NORMAL, NORMAL), + PINMUX(LPW0, DISPA, NORMAL, NORMAL), + PINMUX(LPW2, DISPA, NORMAL, NORMAL), + PINMUX(LSC0, DISPA, NORMAL, NORMAL), + PINMUX(LSPI, DISPA, NORMAL, NORMAL), + PINMUX(LVP1, DISPA, NORMAL, NORMAL), + PINMUX(LVS, DISPA, NORMAL, NORMAL), + PINMUX(SLXD, SPDIF, NORMAL, NORMAL), +}; + + +int funcmux_select(enum periph_id id, int config) +{ + int bad_config = config != FUNCMUX_DEFAULT; + + switch (id) { + case PERIPH_ID_UART1: + switch (config) { + case FUNCMUX_UART1_IRRX_IRTX: + pinmux_set_func(PMUX_PINGRP_IRRX, PMUX_FUNC_UARTA); + pinmux_set_func(PMUX_PINGRP_IRTX, PMUX_FUNC_UARTA); + pinmux_tristate_disable(PMUX_PINGRP_IRRX); + pinmux_tristate_disable(PMUX_PINGRP_IRTX); + break; + case FUNCMUX_UART1_UAA_UAB: + pinmux_set_func(PMUX_PINGRP_UAA, PMUX_FUNC_UARTA); + pinmux_set_func(PMUX_PINGRP_UAB, PMUX_FUNC_UARTA); + pinmux_tristate_disable(PMUX_PINGRP_UAA); + pinmux_tristate_disable(PMUX_PINGRP_UAB); + bad_config = 0; + break; + case FUNCMUX_UART1_GPU: + pinmux_set_func(PMUX_PINGRP_GPU, PMUX_FUNC_UARTA); + pinmux_tristate_disable(PMUX_PINGRP_GPU); + bad_config = 0; + break; + case FUNCMUX_UART1_SDIO1: + pinmux_set_func(PMUX_PINGRP_SDIO1, PMUX_FUNC_UARTA); + pinmux_tristate_disable(PMUX_PINGRP_SDIO1); + bad_config = 0; + break; + } + if (!bad_config) { + /* + * Tegra appears to boot with function UARTA pre- + * selected on mux group SDB. If two mux groups are + * both set to the same function, it's unclear which + * group's pins drive the RX signals into the HW. + * For UARTA, SDB certainly overrides group IRTX in + * practice. To solve this, configure some alternative + * function on SDB to avoid the conflict. Also, tri- + * state the group to avoid driving any signal onto it + * until we know what's connected. + */ + pinmux_tristate_enable(PMUX_PINGRP_SDB); + pinmux_set_func(PMUX_PINGRP_SDB, PMUX_FUNC_SDIO3); + } + break; + + case PERIPH_ID_UART2: + if (config == FUNCMUX_UART2_UAD) { + pinmux_set_func(PMUX_PINGRP_UAD, PMUX_FUNC_UARTB); + pinmux_tristate_disable(PMUX_PINGRP_UAD); + } + break; + + case PERIPH_ID_UART4: + if (config == FUNCMUX_UART4_GMC) { + pinmux_set_func(PMUX_PINGRP_GMC, PMUX_FUNC_UARTD); + pinmux_tristate_disable(PMUX_PINGRP_GMC); + } + break; + + case PERIPH_ID_DVC_I2C: + /* there is only one selection, pinmux_config is ignored */ + if (config == FUNCMUX_DVC_I2CP) { + pinmux_set_func(PMUX_PINGRP_I2CP, PMUX_FUNC_I2C); + pinmux_tristate_disable(PMUX_PINGRP_I2CP); + } + break; + + case PERIPH_ID_I2C1: + /* support pinmux_config of 0 for now, */ + if (config == FUNCMUX_I2C1_RM) { + pinmux_set_func(PMUX_PINGRP_RM, PMUX_FUNC_I2C); + pinmux_tristate_disable(PMUX_PINGRP_RM); + } + break; + case PERIPH_ID_I2C2: /* I2C2 */ + switch (config) { + case FUNCMUX_I2C2_DDC: /* DDC pin group, select I2C2 */ + pinmux_set_func(PMUX_PINGRP_DDC, PMUX_FUNC_I2C2); + /* PTA to HDMI */ + pinmux_set_func(PMUX_PINGRP_PTA, PMUX_FUNC_HDMI); + pinmux_tristate_disable(PMUX_PINGRP_DDC); + break; + case FUNCMUX_I2C2_PTA: /* PTA pin group, select I2C2 */ + pinmux_set_func(PMUX_PINGRP_PTA, PMUX_FUNC_I2C2); + /* set DDC_SEL to RSVDx (RSVD2 works for now) */ + pinmux_set_func(PMUX_PINGRP_DDC, PMUX_FUNC_RSVD2); + pinmux_tristate_disable(PMUX_PINGRP_PTA); + bad_config = 0; + break; + } + break; + case PERIPH_ID_I2C3: /* I2C3 */ + /* support pinmux_config of 0 for now */ + if (config == FUNCMUX_I2C3_DTF) { + pinmux_set_func(PMUX_PINGRP_DTF, PMUX_FUNC_I2C3); + pinmux_tristate_disable(PMUX_PINGRP_DTF); + } + break; + + case PERIPH_ID_SDMMC1: + if (config == FUNCMUX_SDMMC1_SDIO1_4BIT) { + pinmux_set_func(PMUX_PINGRP_SDIO1, PMUX_FUNC_SDIO1); + pinmux_tristate_disable(PMUX_PINGRP_SDIO1); + } + break; + + case PERIPH_ID_SDMMC2: + if (config == FUNCMUX_SDMMC2_DTA_DTD_8BIT) { + pinmux_set_func(PMUX_PINGRP_DTA, PMUX_FUNC_SDIO2); + pinmux_set_func(PMUX_PINGRP_DTD, PMUX_FUNC_SDIO2); + + pinmux_tristate_disable(PMUX_PINGRP_DTA); + pinmux_tristate_disable(PMUX_PINGRP_DTD); + } + break; + + case PERIPH_ID_SDMMC3: + switch (config) { + case FUNCMUX_SDMMC3_SDB_SLXA_8BIT: + pinmux_set_func(PMUX_PINGRP_SLXA, PMUX_FUNC_SDIO3); + pinmux_set_func(PMUX_PINGRP_SLXC, PMUX_FUNC_SDIO3); + pinmux_set_func(PMUX_PINGRP_SLXD, PMUX_FUNC_SDIO3); + pinmux_set_func(PMUX_PINGRP_SLXK, PMUX_FUNC_SDIO3); + + pinmux_tristate_disable(PMUX_PINGRP_SLXA); + pinmux_tristate_disable(PMUX_PINGRP_SLXC); + pinmux_tristate_disable(PMUX_PINGRP_SLXD); + pinmux_tristate_disable(PMUX_PINGRP_SLXK); + /* fall through */ + + case FUNCMUX_SDMMC3_SDB_4BIT: + pinmux_set_func(PMUX_PINGRP_SDB, PMUX_FUNC_SDIO3); + pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_SDIO3); + pinmux_set_func(PMUX_PINGRP_SDD, PMUX_FUNC_SDIO3); + + pinmux_tristate_disable(PMUX_PINGRP_SDB); + pinmux_tristate_disable(PMUX_PINGRP_SDC); + pinmux_tristate_disable(PMUX_PINGRP_SDD); + bad_config = 0; + break; + } + break; + + case PERIPH_ID_SDMMC4: + switch (config) { + case FUNCMUX_SDMMC4_ATC_ATD_8BIT: + pinmux_set_func(PMUX_PINGRP_ATC, PMUX_FUNC_SDIO4); + pinmux_set_func(PMUX_PINGRP_ATD, PMUX_FUNC_SDIO4); + + pinmux_tristate_disable(PMUX_PINGRP_ATC); + pinmux_tristate_disable(PMUX_PINGRP_ATD); + break; + + case FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT: + pinmux_set_func(PMUX_PINGRP_GME, PMUX_FUNC_SDIO4); + pinmux_tristate_disable(PMUX_PINGRP_GME); + /* fall through */ + + case FUNCMUX_SDMMC4_ATB_GMA_4_BIT: + pinmux_set_func(PMUX_PINGRP_ATB, PMUX_FUNC_SDIO4); + pinmux_set_func(PMUX_PINGRP_GMA, PMUX_FUNC_SDIO4); + + pinmux_tristate_disable(PMUX_PINGRP_ATB); + pinmux_tristate_disable(PMUX_PINGRP_GMA); + bad_config = 0; + break; + } + break; + + case PERIPH_ID_KBC: + if (config == FUNCMUX_DEFAULT) { + enum pmux_pingrp grp[] = {PMUX_PINGRP_KBCA, + PMUX_PINGRP_KBCB, PMUX_PINGRP_KBCC, + PMUX_PINGRP_KBCD, PMUX_PINGRP_KBCE, + PMUX_PINGRP_KBCF}; + int i; + + for (i = 0; i < ARRAY_SIZE(grp); i++) { + pinmux_tristate_disable(grp[i]); + pinmux_set_func(grp[i], PMUX_FUNC_KBC); + pinmux_set_pullupdown(grp[i], PMUX_PULL_UP); + } + } + break; + + case PERIPH_ID_USB2: + if (config == FUNCMUX_USB2_ULPI) { + pinmux_set_func(PMUX_PINGRP_UAA, PMUX_FUNC_ULPI); + pinmux_set_func(PMUX_PINGRP_UAB, PMUX_FUNC_ULPI); + pinmux_set_func(PMUX_PINGRP_UDA, PMUX_FUNC_ULPI); + + pinmux_tristate_disable(PMUX_PINGRP_UAA); + pinmux_tristate_disable(PMUX_PINGRP_UAB); + pinmux_tristate_disable(PMUX_PINGRP_UDA); + } + break; + + case PERIPH_ID_SPI1: + if (config == FUNCMUX_SPI1_GMC_GMD) { + pinmux_set_func(PMUX_PINGRP_GMC, PMUX_FUNC_SFLASH); + pinmux_set_func(PMUX_PINGRP_GMD, PMUX_FUNC_SFLASH); + + pinmux_tristate_disable(PMUX_PINGRP_GMC); + pinmux_tristate_disable(PMUX_PINGRP_GMD); + } + break; + + case PERIPH_ID_NDFLASH: + switch (config) { + case FUNCMUX_NDFLASH_ATC: + pinmux_set_func(PMUX_PINGRP_ATC, PMUX_FUNC_NAND); + pinmux_tristate_disable(PMUX_PINGRP_ATC); + break; + case FUNCMUX_NDFLASH_KBC_8_BIT: + pinmux_set_func(PMUX_PINGRP_KBCA, PMUX_FUNC_NAND); + pinmux_set_func(PMUX_PINGRP_KBCC, PMUX_FUNC_NAND); + pinmux_set_func(PMUX_PINGRP_KBCD, PMUX_FUNC_NAND); + pinmux_set_func(PMUX_PINGRP_KBCE, PMUX_FUNC_NAND); + pinmux_set_func(PMUX_PINGRP_KBCF, PMUX_FUNC_NAND); + + pinmux_tristate_disable(PMUX_PINGRP_KBCA); + pinmux_tristate_disable(PMUX_PINGRP_KBCC); + pinmux_tristate_disable(PMUX_PINGRP_KBCD); + pinmux_tristate_disable(PMUX_PINGRP_KBCE); + pinmux_tristate_disable(PMUX_PINGRP_KBCF); + + bad_config = 0; + break; + } + break; + case PERIPH_ID_DISP1: + if (config == FUNCMUX_DEFAULT) { + int i; + + for (i = PMUX_PINGRP_LD0; i <= PMUX_PINGRP_LD17; i++) { + pinmux_set_func(i, PMUX_FUNC_DISPA); + pinmux_tristate_disable(i); + pinmux_set_pullupdown(i, PMUX_PULL_NORMAL); + } + pinmux_config_pingrp_table(disp1_default, + ARRAY_SIZE(disp1_default)); + } + break; + + default: + debug("%s: invalid periph_id %d", __func__, id); + return -1; + } + + if (bad_config) { + debug("%s: invalid config %d for periph_id %d", __func__, + config, id); + return -1; + } + + return 0; +} diff --git a/arch/arm/mach-tegra/tegra20/pinmux.c b/arch/arm/mach-tegra/tegra20/pinmux.c new file mode 100644 index 0000000000..e484f991bf --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/pinmux.c @@ -0,0 +1,425 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* Tegra20 pin multiplexing functions */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/pinmux.h> + +/* + * This defines the order of the pin mux control bits in the registers. For + * some reason there is no correspendence between the tristate, pin mux and + * pullup/pulldown registers. + */ +enum pmux_ctlid { + /* 0: APB_MISC_PP_PIN_MUX_CTL_A_0 */ + MUXCTL_UAA, + MUXCTL_UAB, + MUXCTL_UAC, + MUXCTL_UAD, + MUXCTL_UDA, + MUXCTL_RESERVED5, + MUXCTL_ATE, + MUXCTL_RM, + + MUXCTL_ATB, + MUXCTL_RESERVED9, + MUXCTL_ATD, + MUXCTL_ATC, + MUXCTL_ATA, + MUXCTL_KBCF, + MUXCTL_KBCE, + MUXCTL_SDMMC1, + + /* 16: APB_MISC_PP_PIN_MUX_CTL_B_0 */ + MUXCTL_GMA, + MUXCTL_GMC, + MUXCTL_HDINT, + MUXCTL_SLXA, + MUXCTL_OWC, + MUXCTL_SLXC, + MUXCTL_SLXD, + MUXCTL_SLXK, + + MUXCTL_UCA, + MUXCTL_UCB, + MUXCTL_DTA, + MUXCTL_DTB, + MUXCTL_RESERVED28, + MUXCTL_DTC, + MUXCTL_DTD, + MUXCTL_DTE, + + /* 32: APB_MISC_PP_PIN_MUX_CTL_C_0 */ + MUXCTL_DDC, + MUXCTL_CDEV1, + MUXCTL_CDEV2, + MUXCTL_CSUS, + MUXCTL_I2CP, + MUXCTL_KBCA, + MUXCTL_KBCB, + MUXCTL_KBCC, + + MUXCTL_IRTX, + MUXCTL_IRRX, + MUXCTL_DAP1, + MUXCTL_DAP2, + MUXCTL_DAP3, + MUXCTL_DAP4, + MUXCTL_GMB, + MUXCTL_GMD, + + /* 48: APB_MISC_PP_PIN_MUX_CTL_D_0 */ + MUXCTL_GME, + MUXCTL_GPV, + MUXCTL_GPU, + MUXCTL_SPDO, + MUXCTL_SPDI, + MUXCTL_SDB, + MUXCTL_SDC, + MUXCTL_SDD, + + MUXCTL_SPIH, + MUXCTL_SPIG, + MUXCTL_SPIF, + MUXCTL_SPIE, + MUXCTL_SPID, + MUXCTL_SPIC, + MUXCTL_SPIB, + MUXCTL_SPIA, + + /* 64: APB_MISC_PP_PIN_MUX_CTL_E_0 */ + MUXCTL_LPW0, + MUXCTL_LPW1, + MUXCTL_LPW2, + MUXCTL_LSDI, + MUXCTL_LSDA, + MUXCTL_LSPI, + MUXCTL_LCSN, + MUXCTL_LDC, + + MUXCTL_LSCK, + MUXCTL_LSC0, + MUXCTL_LSC1, + MUXCTL_LHS, + MUXCTL_LVS, + MUXCTL_LM0, + MUXCTL_LM1, + MUXCTL_LVP0, + + /* 80: APB_MISC_PP_PIN_MUX_CTL_F_0 */ + MUXCTL_LD0, + MUXCTL_LD1, + MUXCTL_LD2, + MUXCTL_LD3, + MUXCTL_LD4, + MUXCTL_LD5, + MUXCTL_LD6, + MUXCTL_LD7, + + MUXCTL_LD8, + MUXCTL_LD9, + MUXCTL_LD10, + MUXCTL_LD11, + MUXCTL_LD12, + MUXCTL_LD13, + MUXCTL_LD14, + MUXCTL_LD15, + + /* 96: APB_MISC_PP_PIN_MUX_CTL_G_0 */ + MUXCTL_LD16, + MUXCTL_LD17, + MUXCTL_LHP1, + MUXCTL_LHP2, + MUXCTL_LVP1, + MUXCTL_LHP0, + MUXCTL_RESERVED102, + MUXCTL_LPP, + + MUXCTL_LDI, + MUXCTL_PMC, + MUXCTL_CRTP, + MUXCTL_PTA, + MUXCTL_RESERVED108, + MUXCTL_KBCD, + MUXCTL_GPU7, + MUXCTL_DTF, + + MUXCTL_NONE = -1, +}; + +/* + * And this defines the order of the pullup/pulldown controls which are again + * in a different order + */ +enum pmux_pullid { + /* 0: APB_MISC_PP_PULLUPDOWN_REG_A_0 */ + PUCTL_ATA, + PUCTL_ATB, + PUCTL_ATC, + PUCTL_ATD, + PUCTL_ATE, + PUCTL_DAP1, + PUCTL_DAP2, + PUCTL_DAP3, + + PUCTL_DAP4, + PUCTL_DTA, + PUCTL_DTB, + PUCTL_DTC, + PUCTL_DTD, + PUCTL_DTE, + PUCTL_DTF, + PUCTL_GPV, + + /* 16: APB_MISC_PP_PULLUPDOWN_REG_B_0 */ + PUCTL_RM, + PUCTL_I2CP, + PUCTL_PTA, + PUCTL_GPU7, + PUCTL_KBCA, + PUCTL_KBCB, + PUCTL_KBCC, + PUCTL_KBCD, + + PUCTL_SPDI, + PUCTL_SPDO, + PUCTL_GPSLXAU, + PUCTL_CRTP, + PUCTL_SLXC, + PUCTL_SLXD, + PUCTL_SLXK, + + /* 32: APB_MISC_PP_PULLUPDOWN_REG_C_0 */ + PUCTL_CDEV1, + PUCTL_CDEV2, + PUCTL_SPIA, + PUCTL_SPIB, + PUCTL_SPIC, + PUCTL_SPID, + PUCTL_SPIE, + PUCTL_SPIF, + + PUCTL_SPIG, + PUCTL_SPIH, + PUCTL_IRTX, + PUCTL_IRRX, + PUCTL_GME, + PUCTL_RESERVED45, + PUCTL_XM2D, + PUCTL_XM2C, + + /* 48: APB_MISC_PP_PULLUPDOWN_REG_D_0 */ + PUCTL_UAA, + PUCTL_UAB, + PUCTL_UAC, + PUCTL_UAD, + PUCTL_UCA, + PUCTL_UCB, + PUCTL_LD17, + PUCTL_LD19_18, + + PUCTL_LD21_20, + PUCTL_LD23_22, + PUCTL_LS, + PUCTL_LC, + PUCTL_CSUS, + PUCTL_DDRC, + PUCTL_SDC, + PUCTL_SDD, + + /* 64: APB_MISC_PP_PULLUPDOWN_REG_E_0 */ + PUCTL_KBCF, + PUCTL_KBCE, + PUCTL_PMCA, + PUCTL_PMCB, + PUCTL_PMCC, + PUCTL_PMCD, + PUCTL_PMCE, + PUCTL_CK32, + + PUCTL_UDA, + PUCTL_SDMMC1, + PUCTL_GMA, + PUCTL_GMB, + PUCTL_GMC, + PUCTL_GMD, + PUCTL_DDC, + PUCTL_OWC, + + PUCTL_NONE = -1 +}; + +/* Convenient macro for defining pin group properties */ +#define PINALL(pingrp, f0, f1, f2, f3, mux, pupd) \ + { \ + .funcs = { \ + PMUX_FUNC_ ## f0, \ + PMUX_FUNC_ ## f1, \ + PMUX_FUNC_ ## f2, \ + PMUX_FUNC_ ## f3, \ + }, \ + .ctl_id = mux, \ + .pull_id = pupd \ + } + +/* A normal pin group where the mux name and pull-up name match */ +#define PIN(pingrp, f0, f1, f2, f3) \ + PINALL(pingrp, f0, f1, f2, f3, MUXCTL_##pingrp, PUCTL_##pingrp) + +/* A pin group where the pull-up name doesn't have a 1-1 mapping */ +#define PINP(pingrp, f0, f1, f2, f3, pupd) \ + PINALL(pingrp, f0, f1, f2, f3, MUXCTL_##pingrp, PUCTL_##pupd) + +/* A pin group number which is not used */ +#define PIN_RESERVED \ + PIN(NONE, RSVD1, RSVD2, RSVD3, RSVD4) + +#define DRVGRP(drvgrp) \ + PINALL(drvgrp, RSVD1, RSVD2, RSVD3, RSVD4, MUXCTL_NONE, PUCTL_NONE) + +static const struct pmux_pingrp_desc tegra20_pingroups[] = { + PIN(ATA, IDE, NAND, GMI, RSVD4), + PIN(ATB, IDE, NAND, GMI, SDIO4), + PIN(ATC, IDE, NAND, GMI, SDIO4), + PIN(ATD, IDE, NAND, GMI, SDIO4), + PIN(CDEV1, OSC, PLLA_OUT, PLLM_OUT1, AUDIO_SYNC), + PIN(CDEV2, OSC, AHB_CLK, APB_CLK, PLLP_OUT4), + PIN(CSUS, PLLC_OUT1, PLLP_OUT2, PLLP_OUT3, VI_SENSOR_CLK), + PIN(DAP1, DAP1, RSVD2, GMI, SDIO2), + + PIN(DAP2, DAP2, TWC, RSVD3, GMI), + PIN(DAP3, DAP3, RSVD2, RSVD3, RSVD4), + PIN(DAP4, DAP4, RSVD2, GMI, RSVD4), + PIN(DTA, RSVD1, SDIO2, VI, RSVD4), + PIN(DTB, RSVD1, RSVD2, VI, SPI1), + PIN(DTC, RSVD1, RSVD2, VI, RSVD4), + PIN(DTD, RSVD1, SDIO2, VI, RSVD4), + PIN(DTE, RSVD1, RSVD2, VI, SPI1), + + PINP(GPU, PWM, UARTA, GMI, RSVD4, GPSLXAU), + PIN(GPV, PCIE, RSVD2, RSVD3, RSVD4), + PIN(I2CP, I2C, RSVD2, RSVD3, RSVD4), + PIN(IRTX, UARTA, UARTB, GMI, SPI4), + PIN(IRRX, UARTA, UARTB, GMI, SPI4), + PIN(KBCB, KBC, NAND, SDIO2, MIO), + PIN(KBCA, KBC, NAND, SDIO2, EMC_TEST0_DLL), + PINP(PMC, PWR_ON, PWR_INTR, RSVD3, RSVD4, NONE), + + PIN(PTA, I2C2, HDMI, GMI, RSVD4), + PIN(RM, I2C, RSVD2, RSVD3, RSVD4), + PIN(KBCE, KBC, NAND, OWR, RSVD4), + PIN(KBCF, KBC, NAND, TRACE, MIO), + PIN(GMA, UARTE, SPI3, GMI, SDIO4), + PIN(GMC, UARTD, SPI4, GMI, SFLASH), + PIN(SDMMC1, SDIO1, RSVD2, UARTE, UARTA), + PIN(OWC, OWR, RSVD2, RSVD3, RSVD4), + + PIN(GME, RSVD1, DAP5, GMI, SDIO4), + PIN(SDC, PWM, TWC, SDIO3, SPI3), + PIN(SDD, UARTA, PWM, SDIO3, SPI3), + PIN_RESERVED, + PINP(SLXA, PCIE, SPI4, SDIO3, SPI2, CRTP), + PIN(SLXC, SPDIF, SPI4, SDIO3, SPI2), + PIN(SLXD, SPDIF, SPI4, SDIO3, SPI2), + PIN(SLXK, PCIE, SPI4, SDIO3, SPI2), + + PIN(SPDI, SPDIF, RSVD2, I2C, SDIO2), + PIN(SPDO, SPDIF, RSVD2, I2C, SDIO2), + PIN(SPIA, SPI1, SPI2, SPI3, GMI), + PIN(SPIB, SPI1, SPI2, SPI3, GMI), + PIN(SPIC, SPI1, SPI2, SPI3, GMI), + PIN(SPID, SPI2, SPI1, SPI2_ALT, GMI), + PIN(SPIE, SPI2, SPI1, SPI2_ALT, GMI), + PIN(SPIF, SPI3, SPI1, SPI2, RSVD4), + + PIN(SPIG, SPI3, SPI2, SPI2_ALT, I2C), + PIN(SPIH, SPI3, SPI2, SPI2_ALT, I2C), + PIN(UAA, SPI3, MIPI_HS, UARTA, ULPI), + PIN(UAB, SPI2, MIPI_HS, UARTA, ULPI), + PIN(UAC, OWR, RSVD2, RSVD3, RSVD4), + PIN(UAD, UARTB, SPDIF, UARTA, SPI4), + PIN(UCA, UARTC, RSVD2, GMI, RSVD4), + PIN(UCB, UARTC, PWM, GMI, RSVD4), + + PIN_RESERVED, + PIN(ATE, IDE, NAND, GMI, RSVD4), + PIN(KBCC, KBC, NAND, TRACE, EMC_TEST1_DLL), + PIN_RESERVED, + PIN_RESERVED, + PIN(GMB, IDE, NAND, GMI, GMI_INT), + PIN(GMD, RSVD1, NAND, GMI, SFLASH), + PIN(DDC, I2C2, RSVD2, RSVD3, RSVD4), + + /* 64 */ + PINP(LD0, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD1, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD2, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD3, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD4, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD5, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD6, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD7, DISPA, DISPB, XIO, RSVD4, LD17), + + PINP(LD8, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD9, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD10, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD11, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD12, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD13, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD14, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD15, DISPA, DISPB, XIO, RSVD4, LD17), + + PINP(LD16, DISPA, DISPB, XIO, RSVD4, LD17), + PINP(LD17, DISPA, DISPB, RSVD3, RSVD4, LD17), + PINP(LHP0, DISPA, DISPB, RSVD3, RSVD4, LD21_20), + PINP(LHP1, DISPA, DISPB, RSVD3, RSVD4, LD19_18), + PINP(LHP2, DISPA, DISPB, RSVD3, RSVD4, LD19_18), + PINP(LVP0, DISPA, DISPB, RSVD3, RSVD4, LC), + PINP(LVP1, DISPA, DISPB, RSVD3, RSVD4, LD21_20), + PINP(HDINT, HDMI, RSVD2, RSVD3, RSVD4, LC), + + PINP(LM0, DISPA, DISPB, SPI3, RSVD4, LC), + PINP(LM1, DISPA, DISPB, RSVD3, CRT, LC), + PINP(LVS, DISPA, DISPB, XIO, RSVD4, LC), + PINP(LSC0, DISPA, DISPB, XIO, RSVD4, LC), + PINP(LSC1, DISPA, DISPB, SPI3, HDMI, LS), + PINP(LSCK, DISPA, DISPB, SPI3, HDMI, LS), + PINP(LDC, DISPA, DISPB, RSVD3, RSVD4, LS), + PINP(LCSN, DISPA, DISPB, SPI3, RSVD4, LS), + + /* 96 */ + PINP(LSPI, DISPA, DISPB, XIO, HDMI, LC), + PINP(LSDA, DISPA, DISPB, SPI3, HDMI, LS), + PINP(LSDI, DISPA, DISPB, SPI3, RSVD4, LS), + PINP(LPW0, DISPA, DISPB, SPI3, HDMI, LS), + PINP(LPW1, DISPA, DISPB, RSVD3, RSVD4, LS), + PINP(LPW2, DISPA, DISPB, SPI3, HDMI, LS), + PINP(LDI, DISPA, DISPB, RSVD3, RSVD4, LD23_22), + PINP(LHS, DISPA, DISPB, XIO, RSVD4, LC), + + PINP(LPP, DISPA, DISPB, RSVD3, RSVD4, LD23_22), + PIN_RESERVED, + PIN(KBCD, KBC, NAND, SDIO2, MIO), + PIN(GPU7, RTCK, RSVD2, RSVD3, RSVD4), + PIN(DTF, I2C3, RSVD2, VI, RSVD4), + PIN(UDA, SPI1, RSVD2, UARTD, ULPI), + PIN(CRTP, CRT, RSVD2, RSVD3, RSVD4), + PINP(SDB, UARTA, PWM, SDIO3, SPI2, NONE), + + /* these pin groups only have pullup and pull down control */ + DRVGRP(CK32), + DRVGRP(DDRC), + DRVGRP(PMCA), + DRVGRP(PMCB), + DRVGRP(PMCC), + DRVGRP(PMCD), + DRVGRP(PMCE), + DRVGRP(XM2C), + DRVGRP(XM2D), +}; +const struct pmux_pingrp_desc *tegra_soc_pingroups = tegra20_pingroups; diff --git a/arch/arm/mach-tegra/tegra20/pmu.c b/arch/arm/mach-tegra/tegra20/pmu.c new file mode 100644 index 0000000000..a774246a27 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/pmu.c @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * (C) Copyright 2010,2011 NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <i2c.h> +#include <tps6586x.h> +#include <asm/io.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/ap.h> +#include <asm/arch-tegra/tegra_i2c.h> +#include <asm/arch-tegra/sys_proto.h> + +#define VDD_CORE_NOMINAL_T25 0x17 /* 1.3v */ +#define VDD_CPU_NOMINAL_T25 0x10 /* 1.125v */ + +#define VDD_CORE_NOMINAL_T20 0x16 /* 1.275v */ +#define VDD_CPU_NOMINAL_T20 0x0f /* 1.1v */ + +#define VDD_RELATION 0x02 /* 50mv */ +#define VDD_TRANSITION_STEP 0x06 /* 150mv */ +#define VDD_TRANSITION_RATE 0x06 /* 3.52mv/us */ + +#define PMI_I2C_ADDRESS 0x34 /* chip requires this address */ + +int pmu_set_nominal(void) +{ + struct udevice *bus, *dev; + int core, cpu; + int ret; + + /* by default, the table has been filled with T25 settings */ + switch (tegra_get_chip_sku()) { + case TEGRA_SOC_T20: + core = VDD_CORE_NOMINAL_T20; + cpu = VDD_CPU_NOMINAL_T20; + break; + case TEGRA_SOC_T25: + core = VDD_CORE_NOMINAL_T25; + cpu = VDD_CPU_NOMINAL_T25; + break; + default: + debug("%s: Unknown SKU id\n", __func__); + return -1; + } + + ret = tegra_i2c_get_dvc_bus(&bus); + if (ret) { + debug("%s: Cannot find DVC I2C bus\n", __func__); + return ret; + } + ret = i2c_get_chip(bus, PMI_I2C_ADDRESS, 1, &dev); + if (ret) { + debug("%s: Cannot find DVC I2C chip\n", __func__); + return ret; + } + + tps6586x_init(dev); + tps6586x_set_pwm_mode(TPS6586X_PWM_SM1); + return tps6586x_adjust_sm0_sm1(core, cpu, VDD_TRANSITION_STEP, + VDD_TRANSITION_RATE, VDD_RELATION); +} diff --git a/arch/arm/mach-tegra/tegra20/pwm.c b/arch/arm/mach-tegra/tegra20/pwm.c new file mode 100644 index 0000000000..5b886363f8 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/pwm.c @@ -0,0 +1,86 @@ +/* + * Tegra2 pulse width frequency modulator definitions + * + * Copyright (c) 2011 The Chromium OS Authors. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <fdtdec.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/pwm.h> + +struct pwm_info { + struct pwm_ctlr *pwm; /* Registers for our pwm controller */ + int pwm_node; /* PWM device tree node */ +} local; + +void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider) +{ + u32 reg; + + assert(channel < PWM_NUM_CHANNELS); + + /* TODO: Can we use clock_adjust_periph_pll_div() here? */ + clock_start_periph_pll(PERIPH_ID_PWM, CLOCK_ID_SFROM32KHZ, rate); + + reg = PWM_ENABLE_MASK; + reg |= pulse_width << PWM_WIDTH_SHIFT; + reg |= freq_divider << PWM_DIVIDER_SHIFT; + writel(reg, &local.pwm[channel].control); + debug("%s: channel=%d, rate=%d\n", __func__, channel, rate); +} + +int pwm_request(const void *blob, int node, const char *prop_name) +{ + int pwm_node; + u32 data[3]; + + if (fdtdec_get_int_array(blob, node, prop_name, data, + ARRAY_SIZE(data))) { + debug("%s: Cannot decode PWM property '%s'\n", __func__, + prop_name); + return -1; + } + + pwm_node = fdt_node_offset_by_phandle(blob, data[0]); + if (pwm_node != local.pwm_node) { + debug("%s: PWM property '%s' phandle %d not recognised" + "- expecting %d\n", __func__, prop_name, data[0], + local.pwm_node); + return -1; + } + if (data[1] >= PWM_NUM_CHANNELS) { + debug("%s: PWM property '%s': invalid channel %u\n", __func__, + prop_name, data[1]); + return -1; + } + + /* + * TODO: We could maintain a list of requests, but it might not be + * worth it for U-Boot. + */ + return data[1]; +} + +int pwm_init(const void *blob) +{ + local.pwm_node = fdtdec_next_compatible(blob, 0, + COMPAT_NVIDIA_TEGRA20_PWM); + if (local.pwm_node < 0) { + debug("%s: Cannot find device tree node\n", __func__); + return -1; + } + + local.pwm = (struct pwm_ctlr *)fdtdec_get_addr(blob, local.pwm_node, + "reg"); + if (local.pwm == (struct pwm_ctlr *)FDT_ADDR_T_NONE) { + debug("%s: Cannot find pwm reg address\n", __func__); + return -1; + } + debug("Tegra PWM at %p, node %d\n", local.pwm, local.pwm_node); + + return 0; +} diff --git a/arch/arm/mach-tegra/tegra20/warmboot.c b/arch/arm/mach-tegra/tegra20/warmboot.c new file mode 100644 index 0000000000..5fdc4bbb50 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/warmboot.c @@ -0,0 +1,372 @@ +/* + * (C) Copyright 2010 - 2011 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <asm/arch/clock.h> +#include <asm/arch/emc.h> +#include <asm/arch/gp_padctrl.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/sdram_param.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/ap.h> +#include <asm/arch-tegra/apb_misc.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/pmc.h> +#include <asm/arch-tegra/fuse.h> +#include <asm/arch-tegra/warmboot.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_TEGRA_CLOCK_SCALING +#error "You must enable CONFIG_TEGRA_CLOCK_SCALING to use CONFIG_TEGRA_LP0" +#endif + +/* + * This is the place in SRAM where the SDRAM parameters are stored. There + * are 4 blocks, one for each RAM code + */ +#define SDRAM_PARAMS_BASE (NV_PA_BASE_SRAM + 0x188) + +/* TODO: If we later add support for the Misc GP controller, refactor this */ +union xm2cfga_reg { + struct { + u32 reserved0:2; + u32 hsm_en:1; + u32 reserved1:2; + u32 preemp_en:1; + u32 vref_en:1; + u32 reserved2:5; + u32 cal_drvdn:5; + u32 reserved3:3; + u32 cal_drvup:5; + u32 reserved4:3; + u32 cal_drvdn_slwr:2; + u32 cal_drvup_slwf:2; + }; + u32 word; +}; + +union xm2cfgd_reg { + struct { + u32 reserved0:2; + u32 hsm_en:1; + u32 schmt_en:1; + u32 lpmd:2; + u32 vref_en:1; + u32 reserved1:5; + u32 cal_drvdn:5; + u32 reserved2:3; + u32 cal_drvup:5; + u32 reserved3:3; + u32 cal_drvdn_slwr:2; + u32 cal_drvup_slwf:2; + }; + u32 word; +}; + +/* + * TODO: This register is not documented in the TRM yet. We could move this + * into the EMC and give it a proper interface, but not while it is + * undocumented. + */ +union fbio_spare_reg { + struct { + u32 reserved:24; + u32 cfg_wb0:8; + }; + u32 word; +}; + +/* We pack the resume information into these unions for later */ +union scratch2_reg { + struct { + u32 pllm_base_divm:5; + u32 pllm_base_divn:10; + u32 pllm_base_divp:3; + u32 pllm_misc_lfcon:4; + u32 pllm_misc_cpcon:4; + u32 gp_xm2cfga_padctrl_preemp:1; + u32 gp_xm2cfgd_padctrl_schmt:1; + u32 osc_ctrl_xobp:1; + u32 memory_type:3; + }; + u32 word; +}; + +union scratch4_reg { + struct { + u32 emc_clock_divider:8; + u32 pllm_stable_time:8; + u32 pllx_stable_time:8; + u32 emc_fbio_spare_cfg_wb0:8; + }; + u32 word; +}; + +union scratch24_reg { + struct { + u32 emc_auto_cal_wait:8; + u32 emc_pin_program_wait:8; + u32 warmboot_wait:8; + u32 reserved:8; + }; + u32 word; +}; + +int warmboot_save_sdram_params(void) +{ + u32 ram_code; + struct sdram_params sdram; + struct apb_misc_pp_ctlr *apb_misc = + (struct apb_misc_pp_ctlr *)NV_PA_APB_MISC_BASE; + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + struct apb_misc_gp_ctlr *gp = + (struct apb_misc_gp_ctlr *)NV_PA_APB_MISC_GP_BASE; + struct emc_ctlr *emc = emc_get_controller(gd->fdt_blob); + union scratch2_reg scratch2; + union scratch4_reg scratch4; + union scratch24_reg scratch24; + union xm2cfga_reg xm2cfga; + union xm2cfgd_reg xm2cfgd; + union fbio_spare_reg fbio_spare; + + /* get ram code that is used as index to array sdram_params in BCT */ + ram_code = (readl(&apb_misc->strapping_opt_a) >> + STRAP_OPT_A_RAM_CODE_SHIFT) & 3; + memcpy(&sdram, + (char *)((struct sdram_params *)SDRAM_PARAMS_BASE + ram_code), + sizeof(sdram)); + + xm2cfga.word = readl(&gp->xm2cfga); + xm2cfgd.word = readl(&gp->xm2cfgd); + + scratch2.word = 0; + scratch2.osc_ctrl_xobp = clock_get_osc_bypass(); + + /* Get the memory PLL settings */ + { + u32 divm, divn, divp, cpcon, lfcon; + + if (clock_ll_read_pll(CLOCK_ID_MEMORY, &divm, &divn, &divp, + &cpcon, &lfcon)) + return -1; + scratch2.pllm_base_divm = divm; + scratch2.pllm_base_divn = divn; + scratch2.pllm_base_divp = divp; + scratch2.pllm_misc_cpcon = cpcon; + scratch2.pllm_misc_lfcon = lfcon; + } + + scratch2.gp_xm2cfga_padctrl_preemp = xm2cfga.preemp_en; + scratch2.gp_xm2cfgd_padctrl_schmt = xm2cfgd.schmt_en; + scratch2.memory_type = sdram.memory_type; + writel(scratch2.word, &pmc->pmc_scratch2); + + /* collect data from various sources for pmc_scratch4 */ + fbio_spare.word = readl(&emc->fbio_spare); + scratch4.word = 0; + scratch4.emc_fbio_spare_cfg_wb0 = fbio_spare.cfg_wb0; + scratch4.emc_clock_divider = sdram.emc_clock_divider; + scratch4.pllm_stable_time = -1; + scratch4.pllx_stable_time = -1; + writel(scratch4.word, &pmc->pmc_scratch4); + + /* collect various data from sdram for pmc_scratch24 */ + scratch24.word = 0; + scratch24.emc_pin_program_wait = sdram.emc_pin_program_wait; + scratch24.emc_auto_cal_wait = sdram.emc_auto_cal_wait; + scratch24.warmboot_wait = sdram.warm_boot_wait; + writel(scratch24.word, &pmc->pmc_scratch24); + + return 0; +} + +static u32 get_major_version(void) +{ + u32 major_id; + struct apb_misc_gp_ctlr *gp = + (struct apb_misc_gp_ctlr *)NV_PA_APB_MISC_GP_BASE; + + major_id = (readl(&gp->hidrev) & HIDREV_MAJORPREV_MASK) >> + HIDREV_MAJORPREV_SHIFT; + return major_id; +} + +static int is_production_mode_fuse_set(struct fuse_regs *fuse) +{ + return readl(&fuse->production_mode); +} + +static int is_odm_production_mode_fuse_set(struct fuse_regs *fuse) +{ + return readl(&fuse->security_mode); +} + +static int is_failure_analysis_mode(struct fuse_regs *fuse) +{ + return readl(&fuse->fa); +} + +static int ap20_is_odm_production_mode(void) +{ + struct fuse_regs *fuse = (struct fuse_regs *)NV_PA_FUSE_BASE; + + if (!is_failure_analysis_mode(fuse) && + is_odm_production_mode_fuse_set(fuse)) + return 1; + else + return 0; +} + +static int ap20_is_production_mode(void) +{ + struct fuse_regs *fuse = (struct fuse_regs *)NV_PA_FUSE_BASE; + + if (get_major_version() == 0) + return 1; + + if (!is_failure_analysis_mode(fuse) && + is_production_mode_fuse_set(fuse) && + !is_odm_production_mode_fuse_set(fuse)) + return 1; + else + return 0; +} + +static enum fuse_operating_mode fuse_get_operation_mode(void) +{ + u32 chip_id; + struct apb_misc_gp_ctlr *gp = + (struct apb_misc_gp_ctlr *)NV_PA_APB_MISC_GP_BASE; + + chip_id = (readl(&gp->hidrev) & HIDREV_CHIPID_MASK) >> + HIDREV_CHIPID_SHIFT; + if (chip_id == CHIPID_TEGRA20) { + if (ap20_is_odm_production_mode()) { + printf("!! odm_production_mode is not supported !!\n"); + return MODE_UNDEFINED; + } else + if (ap20_is_production_mode()) + return MODE_PRODUCTION; + else + return MODE_UNDEFINED; + } + return MODE_UNDEFINED; +} + +static void determine_crypto_options(int *is_encrypted, int *is_signed, + int *use_zero_key) +{ + switch (fuse_get_operation_mode()) { + case MODE_PRODUCTION: + *is_encrypted = 0; + *is_signed = 1; + *use_zero_key = 1; + break; + case MODE_UNDEFINED: + default: + *is_encrypted = 0; + *is_signed = 0; + *use_zero_key = 0; + break; + } +} + +static int sign_wb_code(u32 start, u32 length, int use_zero_key) +{ + int err; + u8 *source; /* Pointer to source */ + u8 *hash; + + /* Calculate AES block parameters. */ + source = (u8 *)(start + offsetof(struct wb_header, random_aes_block)); + length -= offsetof(struct wb_header, random_aes_block); + hash = (u8 *)(start + offsetof(struct wb_header, hash)); + err = sign_data_block(source, length, hash); + + return err; +} + +int warmboot_prepare_code(u32 seg_address, u32 seg_length) +{ + int err = 0; + u32 length; /* length of the signed/encrypt code */ + struct wb_header *dst_header; /* Pointer to dest WB header */ + int is_encrypted; /* Segment is encrypted */ + int is_signed; /* Segment is signed */ + int use_zero_key; /* Use key of all zeros */ + + /* Determine crypto options. */ + determine_crypto_options(&is_encrypted, &is_signed, &use_zero_key); + + /* Get the actual code limits. */ + length = roundup(((u32)wb_end - (u32)wb_start), 16); + + /* + * The region specified by seg_address must be in SDRAM and must be + * nonzero in length. + */ + if (seg_length == 0 || seg_address < NV_PA_SDRAM_BASE || + seg_address + seg_length >= NV_PA_SDRAM_BASE + gd->ram_size) { + err = -EFAULT; + goto fail; + } + + /* Things must be 16-byte aligned. */ + if ((seg_length & 0xF) || (seg_address & 0xF)) { + err = -EINVAL; + goto fail; + } + + /* Will the code fit? (destination includes wb_header + wb code) */ + if (seg_length < (length + sizeof(struct wb_header))) { + err = -EINVAL; + goto fail; + } + + dst_header = (struct wb_header *)seg_address; + memset((char *)dst_header, 0, sizeof(struct wb_header)); + + /* Populate the random_aes_block as requested. */ + { + u32 *aes_block = (u32 *)&(dst_header->random_aes_block); + u32 *end = (u32 *)(((u32)aes_block) + + sizeof(dst_header->random_aes_block)); + + do { + *aes_block++ = 0; + } while (aes_block < end); + } + + /* Populate the header. */ + dst_header->length_insecure = length + sizeof(struct wb_header); + dst_header->length_secure = length + sizeof(struct wb_header); + dst_header->destination = NV_WB_RUN_ADDRESS; + dst_header->entry_point = NV_WB_RUN_ADDRESS; + dst_header->code_length = length; + + if (is_encrypted) { + printf("!!!! Encryption is not supported !!!!\n"); + dst_header->length_insecure = 0; + err = -EACCES; + goto fail; + } else + /* copy the wb code directly following dst_header. */ + memcpy((char *)(dst_header+1), (char *)wb_start, length); + + if (is_signed) + err = sign_wb_code(seg_address, dst_header->length_insecure, + use_zero_key); + +fail: + if (err) + printf("Warning: warmboot code copy failed (error=%d)\n", err); + + return err; +} diff --git a/arch/arm/mach-tegra/tegra20/warmboot_avp.c b/arch/arm/mach-tegra/tegra20/warmboot_avp.c new file mode 100644 index 0000000000..27ce5f480f --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/warmboot_avp.c @@ -0,0 +1,236 @@ +/* + * (C) Copyright 2010 - 2011 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/flow.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/ap.h> +#include <asm/arch-tegra/apb_misc.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/pmc.h> +#include <asm/arch-tegra/warmboot.h> +#include "warmboot_avp.h" + +#define DEBUG_RESET_CORESIGHT + +void wb_start(void) +{ + struct apb_misc_pp_ctlr *apb_misc = + (struct apb_misc_pp_ctlr *)NV_PA_APB_MISC_BASE; + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE; + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + union osc_ctrl_reg osc_ctrl; + union pllx_base_reg pllx_base; + union pllx_misc_reg pllx_misc; + union scratch3_reg scratch3; + u32 reg; + + /* enable JTAG & TBE */ + writel(CONFIG_CTL_TBE | CONFIG_CTL_JTAG, &apb_misc->cfg_ctl); + + /* Are we running where we're supposed to be? */ + asm volatile ( + "adr %0, wb_start;" /* reg: wb_start address */ + : "=r"(reg) /* output */ + /* no input, no clobber list */ + ); + + if (reg != NV_WB_RUN_ADDRESS) + goto do_reset; + + /* Are we running with AVP? */ + if (readl(NV_PA_PG_UP_BASE + PG_UP_TAG_0) != PG_UP_TAG_AVP) + goto do_reset; + +#ifdef DEBUG_RESET_CORESIGHT + /* Assert CoreSight reset */ + reg = readl(&clkrst->crc_rst_dev[TEGRA_DEV_U]); + reg |= SWR_CSITE_RST; + writel(reg, &clkrst->crc_rst_dev[TEGRA_DEV_U]); +#endif + + /* TODO: Set the drive strength - maybe make this a board parameter? */ + osc_ctrl.word = readl(&clkrst->crc_osc_ctrl); + osc_ctrl.xofs = 4; + osc_ctrl.xoe = 1; + writel(osc_ctrl.word, &clkrst->crc_osc_ctrl); + + /* Power up the CPU complex if necessary */ + if (!(readl(&pmc->pmc_pwrgate_status) & PWRGATE_STATUS_CPU)) { + reg = PWRGATE_TOGGLE_PARTID_CPU | PWRGATE_TOGGLE_START; + writel(reg, &pmc->pmc_pwrgate_toggle); + while (!(readl(&pmc->pmc_pwrgate_status) & PWRGATE_STATUS_CPU)) + ; + } + + /* Remove the I/O clamps from the CPU power partition. */ + reg = readl(&pmc->pmc_remove_clamping); + reg |= CPU_CLMP; + writel(reg, &pmc->pmc_remove_clamping); + + reg = EVENT_ZERO_VAL_20 | EVENT_MSEC | EVENT_MODE_STOP; + writel(reg, &flow->halt_cop_events); + + /* Assert CPU complex reset */ + reg = readl(&clkrst->crc_rst_dev[TEGRA_DEV_L]); + reg |= CPU_RST; + writel(reg, &clkrst->crc_rst_dev[TEGRA_DEV_L]); + + /* Hold both CPUs in reset */ + reg = CPU_CMPLX_CPURESET0 | CPU_CMPLX_CPURESET1 | CPU_CMPLX_DERESET0 | + CPU_CMPLX_DERESET1 | CPU_CMPLX_DBGRESET0 | CPU_CMPLX_DBGRESET1; + writel(reg, &clkrst->crc_cpu_cmplx_set); + + /* Halt CPU1 at the flow controller for uni-processor configurations */ + writel(EVENT_MODE_STOP, &flow->halt_cpu1_events); + + /* + * Set the CPU reset vector. SCRATCH41 contains the physical + * address of the CPU-side restoration code. + */ + reg = readl(&pmc->pmc_scratch41); + writel(reg, EXCEP_VECTOR_CPU_RESET_VECTOR); + + /* Select CPU complex clock source */ + writel(CCLK_PLLP_BURST_POLICY, &clkrst->crc_cclk_brst_pol); + + /* Start the CPU0 clock and stop the CPU1 clock */ + reg = CPU_CMPLX_CPU_BRIDGE_CLKDIV_4 | CPU_CMPLX_CPU0_CLK_STP_RUN | + CPU_CMPLX_CPU1_CLK_STP_STOP; + writel(reg, &clkrst->crc_clk_cpu_cmplx); + + /* Enable the CPU complex clock */ + reg = readl(&clkrst->crc_clk_out_enb[TEGRA_DEV_L]); + reg |= CLK_ENB_CPU; + writel(reg, &clkrst->crc_clk_out_enb[TEGRA_DEV_L]); + + /* Make sure the resets were held for at least 2 microseconds */ + reg = readl(TIMER_USEC_CNTR); + while (readl(TIMER_USEC_CNTR) <= (reg + 2)) + ; + +#ifdef DEBUG_RESET_CORESIGHT + /* + * De-assert CoreSight reset. + * NOTE: We're leaving the CoreSight clock on the oscillator for + * now. It will be restored to its original clock source + * when the CPU-side restoration code runs. + */ + reg = readl(&clkrst->crc_rst_dev[TEGRA_DEV_U]); + reg &= ~SWR_CSITE_RST; + writel(reg, &clkrst->crc_rst_dev[TEGRA_DEV_U]); +#endif + + /* Unlock the CPU CoreSight interfaces */ + reg = 0xC5ACCE55; + writel(reg, CSITE_CPU_DBG0_LAR); + writel(reg, CSITE_CPU_DBG1_LAR); + + /* + * Sample the microsecond timestamp again. This is the time we must + * use when returning from LP0 for PLL stabilization delays. + */ + reg = readl(TIMER_USEC_CNTR); + writel(reg, &pmc->pmc_scratch1); + + pllx_base.word = 0; + pllx_misc.word = 0; + scratch3.word = readl(&pmc->pmc_scratch3); + + /* Get the OSC. For 19.2 MHz, use 19 to make the calculations easier */ + reg = (readl(TIMER_USEC_CFG) & USEC_CFG_DIVISOR_MASK) + 1; + + /* + * According to the TRM, for 19.2MHz OSC, the USEC_DIVISOR is 0x5f, and + * USEC_DIVIDEND is 0x04. So, if USEC_DIVISOR > 26, OSC is 19.2 MHz. + * + * reg is used to calculate the pllx freq, which is used to determine if + * to set dccon or not. + */ + if (reg > 26) + reg = 19; + + /* PLLX_BASE.PLLX_DIVM */ + if (scratch3.pllx_base_divm == reg) + reg = 0; + else + reg = 1; + + /* PLLX_BASE.PLLX_DIVN */ + pllx_base.divn = scratch3.pllx_base_divn; + reg = scratch3.pllx_base_divn << reg; + + /* PLLX_BASE.PLLX_DIVP */ + pllx_base.divp = scratch3.pllx_base_divp; + reg = reg >> scratch3.pllx_base_divp; + + pllx_base.bypass = 1; + + /* PLLX_MISC_DCCON must be set for pllx frequency > 600 MHz. */ + if (reg > 600) + pllx_misc.dccon = 1; + + /* PLLX_MISC_LFCON */ + pllx_misc.lfcon = scratch3.pllx_misc_lfcon; + + /* PLLX_MISC_CPCON */ + pllx_misc.cpcon = scratch3.pllx_misc_cpcon; + + writel(pllx_misc.word, &clkrst->crc_pll_simple[SIMPLE_PLLX].pll_misc); + writel(pllx_base.word, &clkrst->crc_pll_simple[SIMPLE_PLLX].pll_base); + + pllx_base.enable = 1; + writel(pllx_base.word, &clkrst->crc_pll_simple[SIMPLE_PLLX].pll_base); + pllx_base.bypass = 0; + writel(pllx_base.word, &clkrst->crc_pll_simple[SIMPLE_PLLX].pll_base); + + writel(0, flow->halt_cpu_events); + + reg = CPU_CMPLX_CPURESET0 | CPU_CMPLX_DBGRESET0 | CPU_CMPLX_DERESET0; + writel(reg, &clkrst->crc_cpu_cmplx_clr); + + reg = PLLM_OUT1_RSTN_RESET_DISABLE | PLLM_OUT1_CLKEN_ENABLE | + PLLM_OUT1_RATIO_VAL_8; + writel(reg, &clkrst->crc_pll[CLOCK_ID_MEMORY].pll_out[0]); + + reg = SCLK_SWAKE_FIQ_SRC_PLLM_OUT1 | SCLK_SWAKE_IRQ_SRC_PLLM_OUT1 | + SCLK_SWAKE_RUN_SRC_PLLM_OUT1 | SCLK_SWAKE_IDLE_SRC_PLLM_OUT1 | + SCLK_SYS_STATE_IDLE; + writel(reg, &clkrst->crc_sclk_brst_pol); + + /* avp_resume: no return after the write */ + reg = readl(&clkrst->crc_rst_dev[TEGRA_DEV_L]); + reg &= ~CPU_RST; + writel(reg, &clkrst->crc_rst_dev[TEGRA_DEV_L]); + + /* avp_halt: */ +avp_halt: + reg = EVENT_MODE_STOP | EVENT_JTAG; + writel(reg, flow->halt_cop_events); + goto avp_halt; + +do_reset: + /* + * Execution comes here if something goes wrong. The chip is reset and + * a cold boot is performed. + */ + writel(SWR_TRIG_SYS_RST, &clkrst->crc_rst_dev[TEGRA_DEV_L]); + goto do_reset; +} + +/* + * wb_end() is a dummy function, and must be directly following wb_start(), + * and is used to calculate the size of wb_start(). + */ +void wb_end(void) +{ +} diff --git a/arch/arm/mach-tegra/tegra20/warmboot_avp.h b/arch/arm/mach-tegra/tegra20/warmboot_avp.h new file mode 100644 index 0000000000..7b86acb156 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20/warmboot_avp.h @@ -0,0 +1,65 @@ +/* + * (C) Copyright 2010, 2011 + * NVIDIA Corporation <www.nvidia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _WARMBOOT_AVP_H_ +#define _WARMBOOT_AVP_H_ + +#define TEGRA_DEV_L 0 +#define TEGRA_DEV_H 1 +#define TEGRA_DEV_U 2 + +#define SIMPLE_PLLX (CLOCK_ID_XCPU - CLOCK_ID_FIRST_SIMPLE) +#define SIMPLE_PLLE (CLOCK_ID_EPCI - CLOCK_ID_FIRST_SIMPLE) + +#define TIMER_USEC_CNTR (NV_PA_TMRUS_BASE + 0) +#define TIMER_USEC_CFG (NV_PA_TMRUS_BASE + 4) + +#define USEC_CFG_DIVISOR_MASK 0xffff + +#define CONFIG_CTL_TBE (1 << 7) +#define CONFIG_CTL_JTAG (1 << 6) + +#define CPU_RST (1 << 0) +#define CLK_ENB_CPU (1 << 0) +#define SWR_TRIG_SYS_RST (1 << 2) +#define SWR_CSITE_RST (1 << 9) + +#define PWRGATE_STATUS_CPU (1 << 0) +#define PWRGATE_TOGGLE_PARTID_CPU (0 << 0) +#define PWRGATE_TOGGLE_START (1 << 8) + +#define CPU_CMPLX_CPU_BRIDGE_CLKDIV_4 (3 << 0) +#define CPU_CMPLX_CPU0_CLK_STP_STOP (1 << 8) +#define CPU_CMPLX_CPU0_CLK_STP_RUN (0 << 8) +#define CPU_CMPLX_CPU1_CLK_STP_STOP (1 << 9) +#define CPU_CMPLX_CPU1_CLK_STP_RUN (0 << 9) + +#define CPU_CMPLX_CPURESET0 (1 << 0) +#define CPU_CMPLX_CPURESET1 (1 << 1) +#define CPU_CMPLX_DERESET0 (1 << 4) +#define CPU_CMPLX_DERESET1 (1 << 5) +#define CPU_CMPLX_DBGRESET0 (1 << 12) +#define CPU_CMPLX_DBGRESET1 (1 << 13) + +#define PLLM_OUT1_RSTN_RESET_DISABLE (1 << 0) +#define PLLM_OUT1_CLKEN_ENABLE (1 << 1) +#define PLLM_OUT1_RATIO_VAL_8 (8 << 8) + +#define SCLK_SYS_STATE_IDLE (1 << 28) +#define SCLK_SWAKE_FIQ_SRC_PLLM_OUT1 (7 << 12) +#define SCLK_SWAKE_IRQ_SRC_PLLM_OUT1 (7 << 8) +#define SCLK_SWAKE_RUN_SRC_PLLM_OUT1 (7 << 4) +#define SCLK_SWAKE_IDLE_SRC_PLLM_OUT1 (7 << 0) + +#define EVENT_ZERO_VAL_20 (20 << 0) +#define EVENT_MSEC (1 << 24) +#define EVENT_JTAG (1 << 28) +#define EVENT_MODE_STOP (2 << 29) + +#define CCLK_PLLP_BURST_POLICY 0x20004444 + +#endif diff --git a/arch/arm/mach-tegra/tegra30/Kconfig b/arch/arm/mach-tegra/tegra30/Kconfig new file mode 100644 index 0000000000..3abdc7ba17 --- /dev/null +++ b/arch/arm/mach-tegra/tegra30/Kconfig @@ -0,0 +1,32 @@ +if TEGRA30 + +choice + prompt "Tegra30 board select" + +config TARGET_APALIS_T30 + bool "Toradex Apalis T30 board" + +config TARGET_BEAVER + bool "NVIDIA Tegra30 Beaver evaluation board" + +config TARGET_CARDHU + bool "NVIDIA Tegra30 Cardhu evaluation board" + +config TARGET_COLIBRI_T30 + bool "Toradex Colibri T30 board" + +config TARGET_TEC_NG + bool "Avionic Design TEC-NG board" + +endchoice + +config SYS_SOC + default "tegra30" + +source "board/toradex/apalis_t30/Kconfig" +source "board/nvidia/beaver/Kconfig" +source "board/nvidia/cardhu/Kconfig" +source "board/toradex/colibri_t30/Kconfig" +source "board/avionic-design/tec-ng/Kconfig" + +endif diff --git a/arch/arm/mach-tegra/tegra30/Makefile b/arch/arm/mach-tegra/tegra30/Makefile new file mode 100644 index 0000000000..bc250deba8 --- /dev/null +++ b/arch/arm/mach-tegra/tegra30/Makefile @@ -0,0 +1,19 @@ +# +# Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. +# +# This program is free software; you can redistribute it and/or modify it +# under the terms and conditions of the GNU General Public License, +# version 2, as published by the Free Software Foundation. +# +# This program is distributed in the hope it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +obj-$(CONFIG_SPL_BUILD) += cpu.o + +obj-y += clock.o funcmux.o pinmux.o diff --git a/arch/arm/mach-tegra/tegra30/clock.c b/arch/arm/mach-tegra/tegra30/clock.c new file mode 100644 index 0000000000..0eb0f0ade3 --- /dev/null +++ b/arch/arm/mach-tegra/tegra30/clock.c @@ -0,0 +1,744 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Tegra30 Clock control functions */ + +#include <common.h> +#include <errno.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/timer.h> +#include <div64.h> +#include <fdtdec.h> + +/* + * Clock types that we can use as a source. The Tegra30 has muxes for the + * peripheral clocks, and in most cases there are four options for the clock + * source. This gives us a clock 'type' and exploits what commonality exists + * in the device. + * + * Letters are obvious, except for T which means CLK_M, and S which means the + * clock derived from 32KHz. Beware that CLK_M (also called OSC in the + * datasheet) and PLL_M are different things. The former is the basic + * clock supplied to the SOC from an external oscillator. The latter is the + * memory clock PLL. + * + * See definitions in clock_id in the header file. + */ +enum clock_type_id { + CLOCK_TYPE_AXPT, /* PLL_A, PLL_X, PLL_P, CLK_M */ + CLOCK_TYPE_MCPA, /* and so on */ + CLOCK_TYPE_MCPT, + CLOCK_TYPE_PCM, + CLOCK_TYPE_PCMT, + CLOCK_TYPE_PCMT16, + CLOCK_TYPE_PDCT, + CLOCK_TYPE_ACPT, + CLOCK_TYPE_ASPTE, + CLOCK_TYPE_PMDACD2T, + CLOCK_TYPE_PCST, + + CLOCK_TYPE_COUNT, + CLOCK_TYPE_NONE = -1, /* invalid clock type */ +}; + +enum { + CLOCK_MAX_MUX = 8 /* number of source options for each clock */ +}; + +/* + * Clock source mux for each clock type. This just converts our enum into + * a list of mux sources for use by the code. + * + * Note: + * The extra column in each clock source array is used to store the mask + * bits in its register for the source. + */ +#define CLK(x) CLOCK_ID_ ## x +static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX+1] = { + { CLK(AUDIO), CLK(XCPU), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(AUDIO), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(NONE), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(PERIPH), CLK(DISPLAY), CLK(CGENERAL), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(AUDIO), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_30}, + { CLK(AUDIO), CLK(SFROM32KHZ), CLK(PERIPH), CLK(OSC), + CLK(EPCI), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_29}, + { CLK(PERIPH), CLK(MEMORY), CLK(DISPLAY), CLK(AUDIO), + CLK(CGENERAL), CLK(DISPLAY2), CLK(OSC), CLK(NONE), + MASK_BITS_31_29}, + { CLK(PERIPH), CLK(CGENERAL), CLK(SFROM32KHZ), CLK(OSC), + CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), + MASK_BITS_31_28} +}; + +/* + * Clock type for each peripheral clock source. We put the name in each + * record just so it is easy to match things up + */ +#define TYPE(name, type) type +static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = { + /* 0x00 */ + TYPE(PERIPHC_I2S1, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2S2, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_OUT, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_SPDIF_IN, CLOCK_TYPE_PCM), + TYPE(PERIPHC_PWM, CLOCK_TYPE_PCST), /* only PWM uses b29:28 */ + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC2, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SBC3, CLOCK_TYPE_PCMT), + + /* 0x08 */ + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_I2C1, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_DVC_I2C, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_DISP1, CLOCK_TYPE_PMDACD2T), + TYPE(PERIPHC_DISP2, CLOCK_TYPE_PMDACD2T), + + /* 0x10 */ + TYPE(PERIPHC_CVE, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SDMMC1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SDMMC2, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_G3D, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_G2D, CLOCK_TYPE_MCPA), + + /* 0x18 */ + TYPE(PERIPHC_NDFLASH, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SDMMC4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_VFIR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_EPP, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MPE, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MIPI, CLOCK_TYPE_PCMT), /* MIPI base-band HSI */ + TYPE(PERIPHC_UART1, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_UART2, CLOCK_TYPE_PCMT), + + /* 0x20 */ + TYPE(PERIPHC_HOST1X, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_TVO, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_HDMI, CLOCK_TYPE_PMDACD2T), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_TVDAC, CLOCK_TYPE_PDCT), + TYPE(PERIPHC_I2C2, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_EMC, CLOCK_TYPE_MCPT), + + /* 0x28 */ + TYPE(PERIPHC_UART3, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SBC4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2C3, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_SDMMC3, CLOCK_TYPE_PCMT), + + /* 0x30 */ + TYPE(PERIPHC_UART4, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_UART5, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_VDE, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_OWR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NOR, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_CSITE, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2S0, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + + /* 0x38h */ /* Jumps to reg offset 0x3B0h - new for T30 */ + TYPE(PERIPHC_G3D2, CLOCK_TYPE_MCPA), + TYPE(PERIPHC_MSELECT, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_TSENSOR, CLOCK_TYPE_PCST), /* s/b PCTS */ + TYPE(PERIPHC_I2S3, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2S4, CLOCK_TYPE_AXPT), + TYPE(PERIPHC_I2C4, CLOCK_TYPE_PCMT16), + TYPE(PERIPHC_SBC5, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_SBC6, CLOCK_TYPE_PCMT), + + /* 0x40 */ + TYPE(PERIPHC_AUDIO, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_DAM0, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_DAM1, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_DAM2, CLOCK_TYPE_ACPT), + TYPE(PERIPHC_HDA2CODEC2X, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_ACTMON, CLOCK_TYPE_PCST), /* MASK 31:30 */ + TYPE(PERIPHC_EXTPERIPH1, CLOCK_TYPE_ASPTE), + + /* 0x48 */ + TYPE(PERIPHC_EXTPERIPH2, CLOCK_TYPE_ASPTE), + TYPE(PERIPHC_EXTPERIPH3, CLOCK_TYPE_ASPTE), + TYPE(PERIPHC_NANDSPEED, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_I2CSLOW, CLOCK_TYPE_PCST), /* MASK 31:30 */ + TYPE(PERIPHC_SYS, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SPEEDO, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + + /* 0x50 */ + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE), + TYPE(PERIPHC_SATAOOB, CLOCK_TYPE_PCMT), /* offset 0x420h */ + TYPE(PERIPHC_SATA, CLOCK_TYPE_PCMT), + TYPE(PERIPHC_HDA, CLOCK_TYPE_PCMT), +}; + +/* + * This array translates a periph_id to a periphc_internal_id + * + * Not present/matched up: + * uint vi_sensor; _VI_SENSOR_0, 0x1A8 + * SPDIF - which is both 0x08 and 0x0c + * + */ +#define NONE(name) (-1) +#define OFFSET(name, value) PERIPHC_ ## name +static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = { + /* Low word: 31:0 */ + NONE(CPU), + NONE(COP), + NONE(TRIGSYS), + NONE(RESERVED3), + NONE(RESERVED4), + NONE(TMR), + PERIPHC_UART1, + PERIPHC_UART2, /* and vfir 0x68 */ + + /* 8 */ + NONE(GPIO), + PERIPHC_SDMMC2, + NONE(SPDIF), /* 0x08 and 0x0c, unclear which to use */ + PERIPHC_I2S1, + PERIPHC_I2C1, + PERIPHC_NDFLASH, + PERIPHC_SDMMC1, + PERIPHC_SDMMC4, + + /* 16 */ + NONE(RESERVED16), + PERIPHC_PWM, + PERIPHC_I2S2, + PERIPHC_EPP, + PERIPHC_VI, + PERIPHC_G2D, + NONE(USBD), + NONE(ISP), + + /* 24 */ + PERIPHC_G3D, + NONE(RESERVED25), + PERIPHC_DISP2, + PERIPHC_DISP1, + PERIPHC_HOST1X, + NONE(VCP), + PERIPHC_I2S0, + NONE(CACHE2), + + /* Middle word: 63:32 */ + NONE(MEM), + NONE(AHBDMA), + NONE(APBDMA), + NONE(RESERVED35), + NONE(RESERVED36), + NONE(STAT_MON), + NONE(RESERVED38), + NONE(RESERVED39), + + /* 40 */ + NONE(KFUSE), + PERIPHC_SBC1, + PERIPHC_NOR, + NONE(RESERVED43), + PERIPHC_SBC2, + NONE(RESERVED45), + PERIPHC_SBC3, + PERIPHC_DVC_I2C, + + /* 48 */ + NONE(DSI), + PERIPHC_TVO, /* also CVE 0x40 */ + PERIPHC_MIPI, + PERIPHC_HDMI, + NONE(CSI), + PERIPHC_TVDAC, + PERIPHC_I2C2, + PERIPHC_UART3, + + /* 56 */ + NONE(RESERVED56), + PERIPHC_EMC, + NONE(USB2), + NONE(USB3), + PERIPHC_MPE, + PERIPHC_VDE, + NONE(BSEA), + NONE(BSEV), + + /* Upper word 95:64 */ + PERIPHC_SPEEDO, + PERIPHC_UART4, + PERIPHC_UART5, + PERIPHC_I2C3, + PERIPHC_SBC4, + PERIPHC_SDMMC3, + NONE(PCIE), + PERIPHC_OWR, + + /* 72 */ + NONE(AFI), + PERIPHC_CSITE, + NONE(PCIEXCLK), + NONE(AVPUCQ), + NONE(RESERVED76), + NONE(RESERVED77), + NONE(RESERVED78), + NONE(DTV), + + /* 80 */ + PERIPHC_NANDSPEED, + PERIPHC_I2CSLOW, + NONE(DSIB), + NONE(RESERVED83), + NONE(IRAMA), + NONE(IRAMB), + NONE(IRAMC), + NONE(IRAMD), + + /* 88 */ + NONE(CRAM2), + NONE(RESERVED89), + NONE(MDOUBLER), + NONE(RESERVED91), + NONE(SUSOUT), + NONE(RESERVED93), + NONE(RESERVED94), + NONE(RESERVED95), + + /* V word: 31:0 */ + NONE(CPUG), + NONE(CPULP), + PERIPHC_G3D2, + PERIPHC_MSELECT, + PERIPHC_TSENSOR, + PERIPHC_I2S3, + PERIPHC_I2S4, + PERIPHC_I2C4, + + /* 08 */ + PERIPHC_SBC5, + PERIPHC_SBC6, + PERIPHC_AUDIO, + NONE(APBIF), + PERIPHC_DAM0, + PERIPHC_DAM1, + PERIPHC_DAM2, + PERIPHC_HDA2CODEC2X, + + /* 16 */ + NONE(ATOMICS), + NONE(RESERVED17), + NONE(RESERVED18), + NONE(RESERVED19), + NONE(RESERVED20), + NONE(RESERVED21), + NONE(RESERVED22), + PERIPHC_ACTMON, + + /* 24 */ + NONE(RESERVED24), + NONE(RESERVED25), + NONE(RESERVED26), + NONE(RESERVED27), + PERIPHC_SATA, + PERIPHC_HDA, + NONE(RESERVED30), + NONE(RESERVED31), + + /* W word: 31:0 */ + NONE(HDA2HDMICODEC), + NONE(SATACOLD), + NONE(RESERVED0_PCIERX0), + NONE(RESERVED1_PCIERX1), + NONE(RESERVED2_PCIERX2), + NONE(RESERVED3_PCIERX3), + NONE(RESERVED4_PCIERX4), + NONE(RESERVED5_PCIERX5), + + /* 40 */ + NONE(CEC), + NONE(RESERVED6_PCIE2), + NONE(RESERVED7_EMC), + NONE(RESERVED8_HDMI), + NONE(RESERVED9_SATA), + NONE(RESERVED10_MIPI), + NONE(EX_RESERVED46), + NONE(EX_RESERVED47), +}; + +/* + * Get the oscillator frequency, from the corresponding hardware configuration + * field. Note that T30 supports 3 new higher freqs, but we map back + * to the old T20 freqs. Support for the higher oscillators is TBD. + */ +enum clock_osc_freq clock_get_osc_freq(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + reg = readl(&clkrst->crc_osc_ctrl); + reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; + + if (reg & 1) /* one of the newer freqs */ + printf("Warning: OSC_FREQ is unsupported! (%d)\n", reg); + + return reg >> 2; /* Map to most common (T20) freqs */ +} + +/* Returns a pointer to the clock source register for a peripheral */ +u32 *get_periph_source_reg(enum periph_id periph_id) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + enum periphc_internal_id internal_id; + + /* Coresight is a special case */ + if (periph_id == PERIPH_ID_CSI) + return &clkrst->crc_clk_src[PERIPH_ID_CSI+1]; + + assert(periph_id >= PERIPH_ID_FIRST && periph_id < PERIPH_ID_COUNT); + internal_id = periph_id_to_internal_id[periph_id]; + assert(internal_id != -1); + if (internal_id >= PERIPHC_VW_FIRST) { + internal_id -= PERIPHC_VW_FIRST; + return &clkrst->crc_clk_src_vw[internal_id]; + } else + return &clkrst->crc_clk_src[internal_id]; +} + +/** + * Given a peripheral ID and the required source clock, this returns which + * value should be programmed into the source mux for that peripheral. + * + * There is special code here to handle the one source type with 5 sources. + * + * @param periph_id peripheral to start + * @param source PLL id of required parent clock + * @param mux_bits Set to number of bits in mux register: 2 or 4 + * @param divider_bits Set to number of divider bits (8 or 16) + * @return mux value (0-4, or -1 if not found) + */ +int get_periph_clock_source(enum periph_id periph_id, + enum clock_id parent, int *mux_bits, int *divider_bits) +{ + enum clock_type_id type; + enum periphc_internal_id internal_id; + int mux; + + assert(clock_periph_id_isvalid(periph_id)); + + internal_id = periph_id_to_internal_id[periph_id]; + assert(periphc_internal_id_isvalid(internal_id)); + + type = clock_periph_type[internal_id]; + assert(clock_type_id_isvalid(type)); + + *mux_bits = clock_source[type][CLOCK_MAX_MUX]; + + if (type == CLOCK_TYPE_PCMT16) + *divider_bits = 16; + else + *divider_bits = 8; + + for (mux = 0; mux < CLOCK_MAX_MUX; mux++) + if (clock_source[type][mux] == parent) + return mux; + + /* if we get here, either us or the caller has made a mistake */ + printf("Caller requested bad clock: periph=%d, parent=%d\n", periph_id, + parent); + return -1; +} + +void clock_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *clk; + u32 reg; + + /* Enable/disable the clock to this peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + if ((int)periph_id < (int)PERIPH_ID_VW_FIRST) + clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)]; + else + clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)]; + reg = readl(clk); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, clk); +} + +void reset_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *reset; + u32 reg; + + /* Enable/disable reset to the peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + if (periph_id < PERIPH_ID_VW_FIRST) + reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)]; + else + reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)]; + reg = readl(reset); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, reset); +} + +#ifdef CONFIG_OF_CONTROL +/* + * Convert a device tree clock ID to our peripheral ID. They are mostly + * the same but we are very cautious so we check that a valid clock ID is + * provided. + * + * @param clk_id Clock ID according to tegra30 device tree binding + * @return peripheral ID, or PERIPH_ID_NONE if the clock ID is invalid + */ +enum periph_id clk_id_to_periph_id(int clk_id) +{ + if (clk_id > PERIPH_ID_COUNT) + return PERIPH_ID_NONE; + + switch (clk_id) { + case PERIPH_ID_RESERVED3: + case PERIPH_ID_RESERVED4: + case PERIPH_ID_RESERVED16: + case PERIPH_ID_RESERVED24: + case PERIPH_ID_RESERVED35: + case PERIPH_ID_RESERVED43: + case PERIPH_ID_RESERVED45: + case PERIPH_ID_RESERVED56: + case PERIPH_ID_PCIEXCLK: + case PERIPH_ID_RESERVED76: + case PERIPH_ID_RESERVED77: + case PERIPH_ID_RESERVED78: + case PERIPH_ID_RESERVED83: + case PERIPH_ID_RESERVED89: + case PERIPH_ID_RESERVED91: + case PERIPH_ID_RESERVED93: + case PERIPH_ID_RESERVED94: + case PERIPH_ID_RESERVED95: + return PERIPH_ID_NONE; + default: + return clk_id; + } +} +#endif /* CONFIG_OF_CONTROL */ + +void clock_early_init(void) +{ + tegra30_set_up_pllp(); +} + +void arch_timer_init(void) +{ +} + +#define PMC_SATA_PWRGT 0x1ac +#define PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE (1 << 5) +#define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL (1 << 4) + +#define PLLE_SS_CNTL 0x68 +#define PLLE_SS_CNTL_SSCINCINTRV(x) (((x) & 0x3f) << 24) +#define PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16) +#define PLLE_SS_CNTL_SSCBYP (1 << 12) +#define PLLE_SS_CNTL_INTERP_RESET (1 << 11) +#define PLLE_SS_CNTL_BYPASS_SS (1 << 10) +#define PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0) + +#define PLLE_BASE 0x0e8 +#define PLLE_BASE_ENABLE_CML (1 << 31) +#define PLLE_BASE_ENABLE (1 << 30) +#define PLLE_BASE_PLDIV_CML(x) (((x) & 0xf) << 24) +#define PLLE_BASE_PLDIV(x) (((x) & 0x3f) << 16) +#define PLLE_BASE_NDIV(x) (((x) & 0xff) << 8) +#define PLLE_BASE_MDIV(x) (((x) & 0xff) << 0) + +#define PLLE_MISC 0x0ec +#define PLLE_MISC_SETUP_BASE(x) (((x) & 0xffff) << 16) +#define PLLE_MISC_PLL_READY (1 << 15) +#define PLLE_MISC_LOCK (1 << 11) +#define PLLE_MISC_LOCK_ENABLE (1 << 9) +#define PLLE_MISC_SETUP_EXT(x) (((x) & 0x3) << 2) + +static int tegra_plle_train(void) +{ + unsigned int timeout = 2000; + unsigned long value; + + value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT); + value |= PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE; + writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT); + + value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT); + value |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL; + writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT); + + value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT); + value &= ~PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE; + writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT); + + do { + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + if (value & PLLE_MISC_PLL_READY) + break; + + udelay(100); + } while (--timeout); + + if (timeout == 0) { + error("timeout waiting for PLLE to become ready"); + return -ETIMEDOUT; + } + + return 0; +} + +int tegra_plle_enable(void) +{ + unsigned int cpcon = 11, p = 18, n = 150, m = 1, timeout = 1000; + u32 value; + int err; + + /* disable PLLE clock */ + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + value &= ~PLLE_BASE_ENABLE_CML; + value &= ~PLLE_BASE_ENABLE; + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + /* clear lock enable and setup field */ + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + value &= ~PLLE_MISC_LOCK_ENABLE; + value &= ~PLLE_MISC_SETUP_BASE(0xffff); + value &= ~PLLE_MISC_SETUP_EXT(0x3); + writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + if ((value & PLLE_MISC_PLL_READY) == 0) { + err = tegra_plle_train(); + if (err < 0) { + error("failed to train PLLE: %d", err); + return err; + } + } + + /* configure PLLE */ + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + + value &= ~PLLE_BASE_PLDIV_CML(0x0f); + value |= PLLE_BASE_PLDIV_CML(cpcon); + + value &= ~PLLE_BASE_PLDIV(0x3f); + value |= PLLE_BASE_PLDIV(p); + + value &= ~PLLE_BASE_NDIV(0xff); + value |= PLLE_BASE_NDIV(n); + + value &= ~PLLE_BASE_MDIV(0xff); + value |= PLLE_BASE_MDIV(m); + + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + value |= PLLE_MISC_SETUP_BASE(0x7); + value |= PLLE_MISC_LOCK_ENABLE; + value |= PLLE_MISC_SETUP_EXT(0); + writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value |= PLLE_SS_CNTL_SSCBYP | PLLE_SS_CNTL_INTERP_RESET | + PLLE_SS_CNTL_BYPASS_SS; + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); + value |= PLLE_BASE_ENABLE_CML | PLLE_BASE_ENABLE; + writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); + + do { + value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); + if (value & PLLE_MISC_LOCK) + break; + + udelay(2); + } while (--timeout); + + if (timeout == 0) { + error("timeout waiting for PLLE to lock"); + return -ETIMEDOUT; + } + + udelay(50); + + value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + value &= ~PLLE_SS_CNTL_SSCINCINTRV(0x3f); + value |= PLLE_SS_CNTL_SSCINCINTRV(0x18); + + value &= ~PLLE_SS_CNTL_SSCINC(0xff); + value |= PLLE_SS_CNTL_SSCINC(0x01); + + value &= ~PLLE_SS_CNTL_SSCBYP; + value &= ~PLLE_SS_CNTL_INTERP_RESET; + value &= ~PLLE_SS_CNTL_BYPASS_SS; + + value &= ~PLLE_SS_CNTL_SSCMAX(0x1ff); + value |= PLLE_SS_CNTL_SSCMAX(0x24); + writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); + + return 0; +} diff --git a/arch/arm/mach-tegra/tegra30/cpu.c b/arch/arm/mach-tegra/tegra30/cpu.c new file mode 100644 index 0000000000..c76e74c65f --- /dev/null +++ b/arch/arm/mach-tegra/tegra30/cpu.c @@ -0,0 +1,183 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/flow.h> +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch-tegra/pmc.h> +#include <asm/arch-tegra/tegra_i2c.h> +#include "../cpu.h" + +/* Tegra30-specific CPU init code */ +void tegra_i2c_ll_write_addr(uint addr, uint config) +{ + struct i2c_ctlr *reg = (struct i2c_ctlr *)TEGRA_DVC_BASE; + + writel(addr, ®->cmd_addr0); + writel(config, ®->cnfg); +} + +void tegra_i2c_ll_write_data(uint data, uint config) +{ + struct i2c_ctlr *reg = (struct i2c_ctlr *)TEGRA_DVC_BASE; + + writel(data, ®->cmd_data1); + writel(config, ®->cnfg); +} + +#define TPS62366A_I2C_ADDR 0xC0 +#define TPS62366A_SET1_REG 0x01 +#define TPS62366A_SET1_DATA (0x4600 | TPS62366A_SET1_REG) + +#define TPS62361B_I2C_ADDR 0xC0 +#define TPS62361B_SET3_REG 0x03 +#define TPS62361B_SET3_DATA (0x4600 | TPS62361B_SET3_REG) + +#define TPS65911_I2C_ADDR 0x5A +#define TPS65911_VDDCTRL_OP_REG 0x28 +#define TPS65911_VDDCTRL_SR_REG 0x27 +#define TPS65911_VDDCTRL_OP_DATA (0x2400 | TPS65911_VDDCTRL_OP_REG) +#define TPS65911_VDDCTRL_SR_DATA (0x0100 | TPS65911_VDDCTRL_SR_REG) +#define I2C_SEND_2_BYTES 0x0A02 + +static void enable_cpu_power_rail(void) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + u32 reg; + + debug("enable_cpu_power_rail entry\n"); + reg = readl(&pmc->pmc_cntrl); + reg |= CPUPWRREQ_OE; + writel(reg, &pmc->pmc_cntrl); + + /* Set VDD_CORE to 1.200V. */ +#ifdef CONFIG_TEGRA_VDD_CORE_TPS62366A_SET1 + tegra_i2c_ll_write_addr(TPS62366A_I2C_ADDR, 2); + tegra_i2c_ll_write_data(TPS62366A_SET1_DATA, I2C_SEND_2_BYTES); +#endif +#ifdef CONFIG_TEGRA_VDD_CORE_TPS62361B_SET3 + tegra_i2c_ll_write_addr(TPS62361B_I2C_ADDR, 2); + tegra_i2c_ll_write_data(TPS62361B_SET3_DATA, I2C_SEND_2_BYTES); +#endif + udelay(1000); + + /* + * Bring up CPU VDD via the TPS65911x PMIC on the DVC I2C bus. + * First set VDD to 1.0125V, then enable the VDD regulator. + */ + tegra_i2c_ll_write_addr(TPS65911_I2C_ADDR, 2); + tegra_i2c_ll_write_data(TPS65911_VDDCTRL_OP_DATA, I2C_SEND_2_BYTES); + udelay(1000); + tegra_i2c_ll_write_data(TPS65911_VDDCTRL_SR_DATA, I2C_SEND_2_BYTES); + udelay(10 * 1000); +} + +/** + * The T30 requires some special clock initialization, including setting up + * the dvc i2c, turning on mselect and selecting the G CPU cluster + */ +void t30_init_clocks(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE; + u32 val; + + debug("t30_init_clocks entry\n"); + /* Set active CPU cluster to G */ + clrbits_le32(flow->cluster_control, 1 << 0); + + writel(SUPER_SCLK_ENB_MASK, &clkrst->crc_super_sclk_div); + + val = (0 << CLK_SYS_RATE_HCLK_DISABLE_SHIFT) | + (1 << CLK_SYS_RATE_AHB_RATE_SHIFT) | + (0 << CLK_SYS_RATE_PCLK_DISABLE_SHIFT) | + (0 << CLK_SYS_RATE_APB_RATE_SHIFT); + writel(val, &clkrst->crc_clk_sys_rate); + + /* Put i2c, mselect in reset and enable clocks */ + reset_set_enable(PERIPH_ID_DVC_I2C, 1); + clock_set_enable(PERIPH_ID_DVC_I2C, 1); + reset_set_enable(PERIPH_ID_MSELECT, 1); + clock_set_enable(PERIPH_ID_MSELECT, 1); + + /* Switch MSELECT clock to PLLP (00) and use a divisor of 2 */ + clock_ll_set_source_divisor(PERIPH_ID_MSELECT, 0, 2); + + /* + * Our high-level clock routines are not available prior to + * relocation. We use the low-level functions which require a + * hard-coded divisor. Use CLK_M with divide by (n + 1 = 17) + */ + clock_ll_set_source_divisor(PERIPH_ID_DVC_I2C, 3, 16); + + /* + * Give clocks time to stabilize, then take i2c and mselect out of + * reset + */ + udelay(1000); + reset_set_enable(PERIPH_ID_DVC_I2C, 0); + reset_set_enable(PERIPH_ID_MSELECT, 0); +} + +static void set_cpu_running(int run) +{ + struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE; + + debug("set_cpu_running entry, run = %d\n", run); + writel(run ? FLOW_MODE_NONE : FLOW_MODE_STOP, &flow->halt_cpu_events); +} + +void start_cpu(u32 reset_vector) +{ + debug("start_cpu entry, reset_vector = %x\n", reset_vector); + t30_init_clocks(); + + /* Enable VDD_CPU */ + enable_cpu_power_rail(); + + set_cpu_running(0); + + /* Hold the CPUs in reset */ + reset_A9_cpu(1); + + /* Disable the CPU clock */ + enable_cpu_clock(0); + + /* Enable CoreSight */ + clock_enable_coresight(1); + + /* + * Set the entry point for CPU execution from reset, + * if it's a non-zero value. + */ + if (reset_vector) + writel(reset_vector, EXCEP_VECTOR_CPU_RESET_VECTOR); + + /* Enable the CPU clock */ + enable_cpu_clock(1); + + /* If the CPU doesn't already have power, power it up */ + powerup_cpu(); + + /* Take the CPU out of reset */ + reset_A9_cpu(0); + + set_cpu_running(1); +} diff --git a/arch/arm/mach-tegra/tegra30/funcmux.c b/arch/arm/mach-tegra/tegra30/funcmux.c new file mode 100644 index 0000000000..409335ce1d --- /dev/null +++ b/arch/arm/mach-tegra/tegra30/funcmux.c @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Tegra30 high-level function multiplexing */ + +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/arch/funcmux.h> +#include <asm/arch/pinmux.h> + +int funcmux_select(enum periph_id id, int config) +{ + int bad_config = config != FUNCMUX_DEFAULT; + + switch (id) { + case PERIPH_ID_UART1: + switch (config) { + case FUNCMUX_UART1_ULPI: + pinmux_set_func(PMUX_PINGRP_ULPI_DATA0_PO1, + PMUX_FUNC_UARTA); + pinmux_set_func(PMUX_PINGRP_ULPI_DATA1_PO2, + PMUX_FUNC_UARTA); + pinmux_set_func(PMUX_PINGRP_ULPI_DATA2_PO3, + PMUX_FUNC_UARTA); + pinmux_set_func(PMUX_PINGRP_ULPI_DATA3_PO4, + PMUX_FUNC_UARTA); + pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA0_PO1); + pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA1_PO2); + pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA2_PO3); + pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA3_PO4); + break; + } + break; + + /* Add other periph IDs here as needed */ + + default: + debug("%s: invalid periph_id %d", __func__, id); + return -1; + } + + if (bad_config) { + debug("%s: invalid config %d for periph_id %d", __func__, + config, id); + return -1; + } + return 0; +} diff --git a/arch/arm/mach-tegra/tegra30/pinmux.c b/arch/arm/mach-tegra/tegra30/pinmux.c new file mode 100644 index 0000000000..7eb05743b4 --- /dev/null +++ b/arch/arm/mach-tegra/tegra30/pinmux.c @@ -0,0 +1,276 @@ +/* + * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/pinmux.h> + +#define PIN(pin, f0, f1, f2, f3) \ + { \ + .funcs = { \ + PMUX_FUNC_##f0, \ + PMUX_FUNC_##f1, \ + PMUX_FUNC_##f2, \ + PMUX_FUNC_##f3, \ + }, \ + } + +#define PIN_RESERVED {} + +static const struct pmux_pingrp_desc tegra30_pingroups[] = { + /* pin, f0, f1, f2, f3 */ + /* Offset 0x3000 */ + PIN(ULPI_DATA0_PO1, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA1_PO2, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA2_PO3, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA3_PO4, SPI3, HSI, UARTA, ULPI), + PIN(ULPI_DATA4_PO5, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA5_PO6, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA6_PO7, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_DATA7_PO0, SPI2, HSI, UARTA, ULPI), + PIN(ULPI_CLK_PY0, SPI1, RSVD2, UARTD, ULPI), + PIN(ULPI_DIR_PY1, SPI1, RSVD2, UARTD, ULPI), + PIN(ULPI_NXT_PY2, SPI1, RSVD2, UARTD, ULPI), + PIN(ULPI_STP_PY3, SPI1, RSVD2, UARTD, ULPI), + PIN(DAP3_FS_PP0, I2S2, RSVD2, DISPLAYA, DISPLAYB), + PIN(DAP3_DIN_PP1, I2S2, RSVD2, DISPLAYA, DISPLAYB), + PIN(DAP3_DOUT_PP2, I2S2, RSVD2, DISPLAYA, DISPLAYB), + PIN(DAP3_SCLK_PP3, I2S2, RSVD2, DISPLAYA, DISPLAYB), + PIN(PV0, RSVD1, RSVD2, RSVD3, RSVD4), + PIN(PV1, RSVD1, RSVD2, RSVD3, RSVD4), + PIN(SDMMC1_CLK_PZ0, SDMMC1, RSVD2, RSVD3, UARTA), + PIN(SDMMC1_CMD_PZ1, SDMMC1, RSVD2, RSVD3, UARTA), + PIN(SDMMC1_DAT3_PY4, SDMMC1, RSVD2, UARTE, UARTA), + PIN(SDMMC1_DAT2_PY5, SDMMC1, RSVD2, UARTE, UARTA), + PIN(SDMMC1_DAT1_PY6, SDMMC1, RSVD2, UARTE, UARTA), + PIN(SDMMC1_DAT0_PY7, SDMMC1, RSVD2, UARTE, UARTA), + PIN(PV2, OWR, RSVD2, RSVD3, RSVD4), + PIN(PV3, CLK_12M_OUT, RSVD2, RSVD3, RSVD4), + PIN(CLK2_OUT_PW5, EXTPERIPH2, RSVD2, RSVD3, RSVD4), + PIN(CLK2_REQ_PCC5, DAP, RSVD2, RSVD3, RSVD4), + PIN(LCD_PWR1_PC1, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_PWR2_PC6, DISPLAYA, DISPLAYB, SPI5, HDCP), + PIN(LCD_SDIN_PZ2, DISPLAYA, DISPLAYB, SPI5, RSVD4), + PIN(LCD_SDOUT_PN5, DISPLAYA, DISPLAYB, SPI5, HDCP), + PIN(LCD_WR_N_PZ3, DISPLAYA, DISPLAYB, SPI5, HDCP), + PIN(LCD_CS0_N_PN4, DISPLAYA, DISPLAYB, SPI5, RSVD4), + PIN(LCD_DC0_PN6, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_SCK_PZ4, DISPLAYA, DISPLAYB, SPI5, HDCP), + PIN(LCD_PWR0_PB2, DISPLAYA, DISPLAYB, SPI5, HDCP), + PIN(LCD_PCLK_PB3, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_DE_PJ1, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_HSYNC_PJ3, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_VSYNC_PJ4, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D0_PE0, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D1_PE1, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D2_PE2, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D3_PE3, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D4_PE4, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D5_PE5, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D6_PE6, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D7_PE7, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D8_PF0, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D9_PF1, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D10_PF2, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D11_PF3, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D12_PF4, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D13_PF5, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D14_PF6, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D15_PF7, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D16_PM0, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D17_PM1, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D18_PM2, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D19_PM3, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D20_PM4, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D21_PM5, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D22_PM6, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_D23_PM7, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_CS1_N_PW0, DISPLAYA, DISPLAYB, SPI5, RSVD4), + PIN(LCD_M1_PW1, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(LCD_DC1_PD2, DISPLAYA, DISPLAYB, RSVD3, RSVD4), + PIN(HDMI_INT_PN7, HDMI, RSVD2, RSVD3, RSVD4), + PIN(DDC_SCL_PV4, I2C4, RSVD2, RSVD3, RSVD4), + PIN(DDC_SDA_PV5, I2C4, RSVD2, RSVD3, RSVD4), + PIN(CRT_HSYNC_PV6, CRT, RSVD2, RSVD3, RSVD4), + PIN(CRT_VSYNC_PV7, CRT, RSVD2, RSVD3, RSVD4), + PIN(VI_D0_PT4, DDR, RSVD2, VI, RSVD4), + PIN(VI_D1_PD5, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D2_PL0, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D3_PL1, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D4_PL2, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D5_PL3, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D6_PL4, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D7_PL5, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D8_PL6, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D9_PL7, DDR, SDMMC2, VI, RSVD4), + PIN(VI_D10_PT2, DDR, RSVD2, VI, RSVD4), + PIN(VI_D11_PT3, DDR, RSVD2, VI, RSVD4), + PIN(VI_PCLK_PT0, RSVD1, SDMMC2, VI, RSVD4), + PIN(VI_MCLK_PT1, VI, VI_ALT1, VI_ALT2, VI_ALT3), + PIN(VI_VSYNC_PD6, DDR, RSVD2, VI, RSVD4), + PIN(VI_HSYNC_PD7, DDR, RSVD2, VI, RSVD4), + PIN(UART2_RXD_PC3, UARTB, SPDIF, UARTA, SPI4), + PIN(UART2_TXD_PC2, UARTB, SPDIF, UARTA, SPI4), + PIN(UART2_RTS_N_PJ6, UARTA, UARTB, GMI, SPI4), + PIN(UART2_CTS_N_PJ5, UARTA, UARTB, GMI, SPI4), + PIN(UART3_TXD_PW6, UARTC, RSVD2, GMI, RSVD4), + PIN(UART3_RXD_PW7, UARTC, RSVD2, GMI, RSVD4), + PIN(UART3_CTS_N_PA1, UARTC, RSVD2, GMI, RSVD4), + PIN(UART3_RTS_N_PC0, UARTC, PWM0, GMI, RSVD4), + PIN(PU0, OWR, UARTA, GMI, RSVD4), + PIN(PU1, RSVD1, UARTA, GMI, RSVD4), + PIN(PU2, RSVD1, UARTA, GMI, RSVD4), + PIN(PU3, PWM0, UARTA, GMI, RSVD4), + PIN(PU4, PWM1, UARTA, GMI, RSVD4), + PIN(PU5, PWM2, UARTA, GMI, RSVD4), + PIN(PU6, PWM3, UARTA, GMI, RSVD4), + PIN(GEN1_I2C_SDA_PC5, I2C1, RSVD2, RSVD3, RSVD4), + PIN(GEN1_I2C_SCL_PC4, I2C1, RSVD2, RSVD3, RSVD4), + PIN(DAP4_FS_PP4, I2S3, RSVD2, GMI, RSVD4), + PIN(DAP4_DIN_PP5, I2S3, RSVD2, GMI, RSVD4), + PIN(DAP4_DOUT_PP6, I2S3, RSVD2, GMI, RSVD4), + PIN(DAP4_SCLK_PP7, I2S3, RSVD2, GMI, RSVD4), + PIN(CLK3_OUT_PEE0, EXTPERIPH3, RSVD2, RSVD3, RSVD4), + PIN(CLK3_REQ_PEE1, DEV3, RSVD2, RSVD3, RSVD4), + PIN(GMI_WP_N_PC7, RSVD1, NAND, GMI, GMI_ALT), + PIN(GMI_IORDY_PI5, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_WAIT_PI7, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_ADV_N_PK0, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_CLK_PK1, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_CS0_N_PJ0, RSVD1, NAND, GMI, DTV), + PIN(GMI_CS1_N_PJ2, RSVD1, NAND, GMI, DTV), + PIN(GMI_CS2_N_PK3, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_CS3_N_PK4, RSVD1, NAND, GMI, GMI_ALT), + PIN(GMI_CS4_N_PK2, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_CS6_N_PI3, NAND, NAND_ALT, GMI, SATA), + PIN(GMI_CS7_N_PI6, NAND, NAND_ALT, GMI, GMI_ALT), + PIN(GMI_AD0_PG0, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD1_PG1, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD2_PG2, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD3_PG3, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD4_PG4, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD5_PG5, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD6_PG6, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD7_PG7, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD8_PH0, PWM0, NAND, GMI, RSVD4), + PIN(GMI_AD9_PH1, PWM1, NAND, GMI, RSVD4), + PIN(GMI_AD10_PH2, PWM2, NAND, GMI, RSVD4), + PIN(GMI_AD11_PH3, PWM3, NAND, GMI, RSVD4), + PIN(GMI_AD12_PH4, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD13_PH5, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD14_PH6, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_AD15_PH7, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_A16_PJ7, UARTD, SPI4, GMI, GMI_ALT), + PIN(GMI_A17_PB0, UARTD, SPI4, GMI, DTV), + PIN(GMI_A18_PB1, UARTD, SPI4, GMI, DTV), + PIN(GMI_A19_PK7, UARTD, SPI4, GMI, RSVD4), + PIN(GMI_WR_N_PI0, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_OE_N_PI1, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_DQS_PI2, RSVD1, NAND, GMI, RSVD4), + PIN(GMI_RST_N_PI4, NAND, NAND_ALT, GMI, RSVD4), + PIN(GEN2_I2C_SCL_PT5, I2C2, HDCP, GMI, RSVD4), + PIN(GEN2_I2C_SDA_PT6, I2C2, HDCP, GMI, RSVD4), + PIN(SDMMC4_CLK_PCC4, INVALID, NAND, GMI, SDMMC4), + PIN(SDMMC4_CMD_PT7, I2C3, NAND, GMI, SDMMC4), + PIN(SDMMC4_DAT0_PAA0, UARTE, SPI3, GMI, SDMMC4), + PIN(SDMMC4_DAT1_PAA1, UARTE, SPI3, GMI, SDMMC4), + PIN(SDMMC4_DAT2_PAA2, UARTE, SPI3, GMI, SDMMC4), + PIN(SDMMC4_DAT3_PAA3, UARTE, SPI3, GMI, SDMMC4), + PIN(SDMMC4_DAT4_PAA4, I2C3, I2S4, GMI, SDMMC4), + PIN(SDMMC4_DAT5_PAA5, VGP3, I2S4, GMI, SDMMC4), + PIN(SDMMC4_DAT6_PAA6, VGP4, I2S4, GMI, SDMMC4), + PIN(SDMMC4_DAT7_PAA7, VGP5, I2S4, GMI, SDMMC4), + PIN(SDMMC4_RST_N_PCC3, VGP6, RSVD2, RSVD3, SDMMC4), + PIN(CAM_MCLK_PCC0, VI, VI_ALT1, VI_ALT3, SDMMC4), + PIN(PCC1, I2S4, RSVD2, RSVD3, SDMMC4), + PIN(PBB0, I2S4, RSVD2, RSVD3, SDMMC4), + PIN(CAM_I2C_SCL_PBB1, VGP1, I2C3, RSVD3, SDMMC4), + PIN(CAM_I2C_SDA_PBB2, VGP2, I2C3, RSVD3, SDMMC4), + PIN(PBB3, VGP3, DISPLAYA, DISPLAYB, SDMMC4), + PIN(PBB4, VGP4, DISPLAYA, DISPLAYB, SDMMC4), + PIN(PBB5, VGP5, DISPLAYA, DISPLAYB, SDMMC4), + PIN(PBB6, VGP6, DISPLAYA, DISPLAYB, SDMMC4), + PIN(PBB7, I2S4, RSVD2, RSVD3, SDMMC4), + PIN(PCC2, I2S4, RSVD2, RSVD3, RSVD4), + PIN(JTAG_RTCK_PU7, RTCK, RSVD2, RSVD3, RSVD4), + PIN(PWR_I2C_SCL_PZ6, I2CPWR, RSVD2, RSVD3, RSVD4), + PIN(PWR_I2C_SDA_PZ7, I2CPWR, RSVD2, RSVD3, RSVD4), + PIN(KB_ROW0_PR0, KBC, NAND, RSVD3, RSVD4), + PIN(KB_ROW1_PR1, KBC, NAND, RSVD3, RSVD4), + PIN(KB_ROW2_PR2, KBC, NAND, RSVD3, RSVD4), + PIN(KB_ROW3_PR3, KBC, NAND, RSVD3, INVALID), + PIN(KB_ROW4_PR4, KBC, NAND, TRACE, RSVD4), + PIN(KB_ROW5_PR5, KBC, NAND, TRACE, OWR), + PIN(KB_ROW6_PR6, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW7_PR7, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW8_PS0, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW9_PS1, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW10_PS2, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW11_PS3, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW12_PS4, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW13_PS5, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW14_PS6, KBC, NAND, SDMMC2, MIO), + PIN(KB_ROW15_PS7, KBC, NAND, SDMMC2, MIO), + PIN(KB_COL0_PQ0, KBC, NAND, TRACE, TEST), + PIN(KB_COL1_PQ1, KBC, NAND, TRACE, TEST), + PIN(KB_COL2_PQ2, KBC, NAND, TRACE, RSVD4), + PIN(KB_COL3_PQ3, KBC, NAND, TRACE, RSVD4), + PIN(KB_COL4_PQ4, KBC, NAND, TRACE, RSVD4), + PIN(KB_COL5_PQ5, KBC, NAND, TRACE, RSVD4), + PIN(KB_COL6_PQ6, KBC, NAND, TRACE, MIO), + PIN(KB_COL7_PQ7, KBC, NAND, TRACE, MIO), + PIN(CLK_32K_OUT_PA0, BLINK, RSVD2, RSVD3, RSVD4), + PIN(SYS_CLK_REQ_PZ5, SYSCLK, RSVD2, RSVD3, RSVD4), + PIN(CORE_PWR_REQ, CORE_PWR_REQ, RSVD2, RSVD3, RSVD4), + PIN(CPU_PWR_REQ, CPU_PWR_REQ, RSVD2, RSVD3, RSVD4), + PIN(PWR_INT_N, PWR_INT_N, RSVD2, RSVD3, RSVD4), + PIN(CLK_32K_IN, CLK_32K_IN, RSVD2, RSVD3, RSVD4), + PIN(OWR, OWR, CEC, RSVD3, RSVD4), + PIN(DAP1_FS_PN0, I2S0, HDA, GMI, SDMMC2), + PIN(DAP1_DIN_PN1, I2S0, HDA, GMI, SDMMC2), + PIN(DAP1_DOUT_PN2, I2S0, HDA, GMI, SDMMC2), + PIN(DAP1_SCLK_PN3, I2S0, HDA, GMI, SDMMC2), + PIN(CLK1_REQ_PEE2, DAP, HDA, RSVD3, RSVD4), + PIN(CLK1_OUT_PW4, EXTPERIPH1, RSVD2, RSVD3, RSVD4), + PIN(SPDIF_IN_PK6, SPDIF, HDA, I2C1, SDMMC2), + PIN(SPDIF_OUT_PK5, SPDIF, RSVD2, I2C1, SDMMC2), + PIN(DAP2_FS_PA2, I2S1, HDA, RSVD3, GMI), + PIN(DAP2_DIN_PA4, I2S1, HDA, RSVD3, GMI), + PIN(DAP2_DOUT_PA5, I2S1, HDA, RSVD3, GMI), + PIN(DAP2_SCLK_PA3, I2S1, HDA, RSVD3, GMI), + PIN(SPI2_MOSI_PX0, SPI6, SPI2, SPI3, GMI), + PIN(SPI2_MISO_PX1, SPI6, SPI2, SPI3, GMI), + PIN(SPI2_CS0_N_PX3, SPI6, SPI2, SPI3, GMI), + PIN(SPI2_SCK_PX2, SPI6, SPI2, SPI3, GMI), + PIN(SPI1_MOSI_PX4, SPI2, SPI1, SPI2_ALT, GMI), + PIN(SPI1_SCK_PX5, SPI2, SPI1, SPI2_ALT, GMI), + PIN(SPI1_CS0_N_PX6, SPI2, SPI1, SPI2_ALT, GMI), + PIN(SPI1_MISO_PX7, SPI3, SPI1, SPI2_ALT, RSVD4), + PIN(SPI2_CS1_N_PW2, SPI3, SPI2, SPI2_ALT, I2C1), + PIN(SPI2_CS2_N_PW3, SPI3, SPI2, SPI2_ALT, I2C1), + PIN(SDMMC3_CLK_PA6, UARTA, PWM2, SDMMC3, SPI3), + PIN(SDMMC3_CMD_PA7, UARTA, PWM3, SDMMC3, SPI2), + PIN(SDMMC3_DAT0_PB7, RSVD1, RSVD2, SDMMC3, SPI3), + PIN(SDMMC3_DAT1_PB6, RSVD1, RSVD2, SDMMC3, SPI3), + PIN(SDMMC3_DAT2_PB5, RSVD1, PWM1, SDMMC3, SPI3), + PIN(SDMMC3_DAT3_PB4, RSVD1, PWM0, SDMMC3, SPI3), + PIN(SDMMC3_DAT4_PD1, PWM1, SPI4, SDMMC3, SPI2), + PIN(SDMMC3_DAT5_PD0, PWM0, SPI4, SDMMC3, SPI2), + PIN(SDMMC3_DAT6_PD3, SPDIF, SPI4, SDMMC3, SPI2), + PIN(SDMMC3_DAT7_PD4, SPDIF, SPI4, SDMMC3, SPI2), + PIN(PEX_L0_PRSNT_N_PDD0, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L0_RST_N_PDD1, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L0_CLKREQ_N_PDD2, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_WAKE_N_PDD3, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L1_PRSNT_N_PDD4, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L1_RST_N_PDD5, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L1_CLKREQ_N_PDD6, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L2_PRSNT_N_PDD7, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L2_RST_N_PCC6, PCIE, HDA, RSVD3, RSVD4), + PIN(PEX_L2_CLKREQ_N_PCC7, PCIE, HDA, RSVD3, RSVD4), + PIN(HDMI_CEC_PEE3, CEC, RSVD2, RSVD3, RSVD4), +}; +const struct pmux_pingrp_desc *tegra_soc_pingroups = tegra30_pingroups; diff --git a/arch/arm/mach-tegra/vpr.c b/arch/arm/mach-tegra/vpr.c new file mode 100644 index 0000000000..f695811c9b --- /dev/null +++ b/arch/arm/mach-tegra/vpr.c @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Tegra vpr routines */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/tegra.h> +#include <asm/arch/mc.h> + +/* Configures VPR. Right now, all we do is turn it off. */ +void config_vpr(void) +{ + struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE; + + /* Turn VPR off */ + writel(0, &mc->mc_video_protect_size_mb); + writel(TEGRA_MC_VIDEO_PROTECT_REG_WRITE_ACCESS_DISABLED, + &mc->mc_video_protect_reg_ctrl); + /* read back to ensure the write went through */ + readl(&mc->mc_video_protect_reg_ctrl); +} diff --git a/arch/arm/mach-tegra/xusb-padctl.c b/arch/arm/mach-tegra/xusb-padctl.c new file mode 100644 index 0000000000..65f8d2ea96 --- /dev/null +++ b/arch/arm/mach-tegra/xusb-padctl.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <errno.h> + +#include <asm/arch-tegra/xusb-padctl.h> + +struct tegra_xusb_phy * __weak tegra_xusb_phy_get(unsigned int type) +{ + return NULL; +} + +int __weak tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy) +{ + return -ENOSYS; +} + +int __weak tegra_xusb_phy_enable(struct tegra_xusb_phy *phy) +{ + return -ENOSYS; +} + +int __weak tegra_xusb_phy_disable(struct tegra_xusb_phy *phy) +{ + return -ENOSYS; +} + +int __weak tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy) +{ + return -ENOSYS; +} + +void __weak tegra_xusb_padctl_init(const void *fdt) +{ +} |