diff options
| author | Tom Rini <trini@konsulko.com> | 2016-04-01 08:17:55 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-04-01 08:17:55 -0400 |
| commit | 40345e9ea74b0caef06f205364bb2cf93528cc40 (patch) | |
| tree | 9f19a59f6580893d10933c3c9275552bd613cdcf /arch/arm/cpu/armv7/sunxi | |
| parent | 7f5b1e9bd952ebdac917264f03522371a473b60c (diff) | |
| parent | 3ffe39ed2b66af71c7271d0cef2a248b5bf7dfdb (diff) | |
Merge branch 'master' of http://git.denx.de/u-boot-sunxi
Diffstat (limited to 'arch/arm/cpu/armv7/sunxi')
21 files changed, 1 insertions, 4890 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile index ce8e5717e7..4d2274a38e 100644 --- a/arch/arm/cpu/armv7/sunxi/Makefile +++ b/arch/arm/cpu/armv7/sunxi/Makefile @@ -8,38 +8,10 @@ # SPDX-License-Identifier: GPL-2.0+ # obj-y += timer.o -obj-y += board.o -obj-y += clock.o -obj-y += cpu_info.o -obj-y += dram_helpers.o -obj-y += pinmux.o -ifndef CONFIG_MACH_SUN9I -obj-y += usb_phy.o -endif -obj-$(CONFIG_MACH_SUN6I) += prcm.o -obj-$(CONFIG_MACH_SUN8I) += prcm.o -obj-$(CONFIG_MACH_SUN9I) += prcm.o -obj-$(CONFIG_MACH_SUN6I) += p2wi.o -obj-$(CONFIG_MACH_SUN8I) += rsb.o -obj-$(CONFIG_MACH_SUN9I) += rsb.o -obj-$(CONFIG_MACH_SUN4I) += clock_sun4i.o -obj-$(CONFIG_MACH_SUN5I) += clock_sun4i.o -obj-$(CONFIG_MACH_SUN6I) += clock_sun6i.o -obj-$(CONFIG_MACH_SUN7I) += clock_sun4i.o -ifdef CONFIG_MACH_SUN8I_A83T -obj-y += clock_sun8i_a83t.o -else -obj-$(CONFIG_MACH_SUN8I) += clock_sun6i.o -endif -obj-$(CONFIG_MACH_SUN9I) += clock_sun9i.o + obj-$(CONFIG_MACH_SUN6I) += tzpc.o obj-$(CONFIG_MACH_SUN8I_H3) += tzpc.o -obj-$(CONFIG_AXP152_POWER) += pmic_bus.o -obj-$(CONFIG_AXP209_POWER) += pmic_bus.o -obj-$(CONFIG_AXP221_POWER) += pmic_bus.o -obj-$(CONFIG_AXP818_POWER) += pmic_bus.o - ifndef CONFIG_SPL_BUILD ifdef CONFIG_ARMV7_PSCI obj-$(CONFIG_MACH_SUN6I) += psci_sun6i.o @@ -49,13 +21,5 @@ endif endif ifdef CONFIG_SPL_BUILD -obj-$(CONFIG_MACH_SUN4I) += dram_sun4i.o -obj-$(CONFIG_MACH_SUN5I) += dram_sun4i.o -obj-$(CONFIG_MACH_SUN6I) += dram_sun6i.o -obj-$(CONFIG_MACH_SUN7I) += dram_sun4i.o -obj-$(CONFIG_MACH_SUN8I_A23) += dram_sun8i_a23.o -obj-$(CONFIG_MACH_SUN8I_A33) += dram_sun8i_a33.o -obj-$(CONFIG_MACH_SUN8I_A83T) += dram_sun8i_a83t.o -obj-$(CONFIG_MACH_SUN8I_H3) += dram_sun8i_h3.o obj-y += fel_utils.o endif diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c deleted file mode 100644 index 7653148c67..0000000000 --- a/arch/arm/cpu/armv7/sunxi/board.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - * (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net> - * - * (C) Copyright 2007-2011 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * Some init for sunxi platform. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <mmc.h> -#include <i2c.h> -#include <serial.h> -#ifdef CONFIG_SPL_BUILD -#include <spl.h> -#endif -#include <asm/gpio.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/gpio.h> -#include <asm/arch/spl.h> -#include <asm/arch/sys_proto.h> -#include <asm/arch/timer.h> -#include <asm/arch/tzpc.h> -#include <asm/arch/mmc.h> - -#include <linux/compiler.h> - -struct fel_stash { - uint32_t sp; - uint32_t lr; - uint32_t cpsr; - uint32_t sctlr; - uint32_t vbar; - uint32_t cr; -}; - -struct fel_stash fel_stash __attribute__((section(".data"))); - -static int gpio_init(void) -{ -#if CONFIG_CONS_INDEX == 1 && defined(CONFIG_UART0_PORT_F) -#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I) - /* disable GPB22,23 as uart0 tx,rx to avoid conflict */ - sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUNXI_GPIO_INPUT); - sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUNXI_GPIO_INPUT); -#endif -#if defined(CONFIG_MACH_SUN8I) - sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUN8I_GPF_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUN8I_GPF_UART0); -#else - sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUNXI_GPF_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUNXI_GPF_UART0); -#endif - sunxi_gpio_set_pull(SUNXI_GPF(4), 1); -#elif CONFIG_CONS_INDEX == 1 && (defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I)) - sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUN4I_GPB_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUN4I_GPB_UART0); - sunxi_gpio_set_pull(SUNXI_GPB(23), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN5I) - sunxi_gpio_set_cfgpin(SUNXI_GPB(19), SUN5I_GPB_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPB(20), SUN5I_GPB_UART0); - sunxi_gpio_set_pull(SUNXI_GPB(20), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN6I) - sunxi_gpio_set_cfgpin(SUNXI_GPH(20), SUN6I_GPH_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPH(21), SUN6I_GPH_UART0); - sunxi_gpio_set_pull(SUNXI_GPH(21), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_A33) - sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUN8I_A33_GPB_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUN8I_A33_GPB_UART0); - sunxi_gpio_set_pull(SUNXI_GPB(1), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_H3) - sunxi_gpio_set_cfgpin(SUNXI_GPA(4), SUN8I_H3_GPA_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPA(5), SUN8I_H3_GPA_UART0); - sunxi_gpio_set_pull(SUNXI_GPA(5), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_A83T) - sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_A83T_GPB_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPB(10), SUN8I_A83T_GPB_UART0); - sunxi_gpio_set_pull(SUNXI_GPB(10), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN9I) - sunxi_gpio_set_cfgpin(SUNXI_GPH(12), SUN9I_GPH_UART0); - sunxi_gpio_set_cfgpin(SUNXI_GPH(13), SUN9I_GPH_UART0); - sunxi_gpio_set_pull(SUNXI_GPH(13), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 2 && defined(CONFIG_MACH_SUN5I) - sunxi_gpio_set_cfgpin(SUNXI_GPG(3), SUN5I_GPG_UART1); - sunxi_gpio_set_cfgpin(SUNXI_GPG(4), SUN5I_GPG_UART1); - sunxi_gpio_set_pull(SUNXI_GPG(4), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 3 && defined(CONFIG_MACH_SUN8I) - sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUN8I_GPB_UART2); - sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUN8I_GPB_UART2); - sunxi_gpio_set_pull(SUNXI_GPB(1), SUNXI_GPIO_PULL_UP); -#elif CONFIG_CONS_INDEX == 5 && defined(CONFIG_MACH_SUN8I) - sunxi_gpio_set_cfgpin(SUNXI_GPL(2), SUN8I_GPL_R_UART); - sunxi_gpio_set_cfgpin(SUNXI_GPL(3), SUN8I_GPL_R_UART); - sunxi_gpio_set_pull(SUNXI_GPL(3), SUNXI_GPIO_PULL_UP); -#else -#error Unsupported console port number. Please fix pin mux settings in board.c -#endif - - return 0; -} - -int spl_board_load_image(void) -{ - debug("Returning to FEL sp=%x, lr=%x\n", fel_stash.sp, fel_stash.lr); - return_to_fel(fel_stash.sp, fel_stash.lr); - - return 0; -} - -void s_init(void) -{ - /* - * Undocumented magic taken from boot0, without this DRAM - * access gets messed up (seems cache related). - * The boot0 sources describe this as: "config ema for cache sram" - */ -#if defined CONFIG_MACH_SUN6I - setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0x1800); -#elif defined CONFIG_MACH_SUN8I_A23 - uint version; - - /* Unlock sram version info reg, read it, relock */ - setbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15)); - version = readl(SUNXI_SRAMC_BASE + 0x24); - clrbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15)); - - if ((version & 0xffff0000) == 0x16500000) - setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0x1800); - else /* 0x1661 ? */ - setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0xc0); -#endif - -#if defined CONFIG_MACH_SUN6I || \ - defined CONFIG_MACH_SUN7I || \ - defined CONFIG_MACH_SUN8I - /* Enable SMP mode for CPU0, by setting bit 6 of Auxiliary Ctl reg */ - asm volatile( - "mrc p15, 0, r0, c1, c0, 1\n" - "orr r0, r0, #1 << 6\n" - "mcr p15, 0, r0, c1, c0, 1\n"); -#endif -#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I_H3 - /* Enable non-secure access to some peripherals */ - tzpc_init(); -#endif - - clock_init(); - timer_init(); - gpio_init(); - i2c_init_board(); - eth_init_board(); -} - -#ifdef CONFIG_SPL_BUILD -DECLARE_GLOBAL_DATA_PTR; - -/* The sunxi internal brom will try to loader external bootloader - * from mmc0, nand flash, mmc2. - */ -u32 spl_boot_device(void) -{ - __maybe_unused struct mmc *mmc0, *mmc1; - /* - * When booting from the SD card or NAND memory, the "eGON.BT0" - * signature is expected to be found in memory at the address 0x0004 - * (see the "mksunxiboot" tool, which generates this header). - * - * When booting in the FEL mode over USB, this signature is patched in - * memory and replaced with something else by the 'fel' tool. This other - * signature is selected in such a way, that it can't be present in a - * valid bootable SD card image (because the BROM would refuse to - * execute the SPL in this case). - * - * This checks for the signature and if it is not found returns to - * the FEL code in the BROM to wait and receive the main u-boot - * binary over USB. If it is found, it determines where SPL was - * read from. - */ - if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */ - return BOOT_DEVICE_BOARD; - - /* The BROM will try to boot from mmc0 first, so try that first. */ -#ifdef CONFIG_MMC - mmc_initialize(gd->bd); - mmc0 = find_mmc_device(0); - if (sunxi_mmc_has_egon_boot_signature(mmc0)) - return BOOT_DEVICE_MMC1; -#endif - - /* Fallback to booting NAND if enabled. */ - if (IS_ENABLED(CONFIG_SPL_NAND_SUPPORT)) - return BOOT_DEVICE_NAND; - -#ifdef CONFIG_MMC - if (CONFIG_MMC_SUNXI_SLOT_EXTRA == 2) { - mmc1 = find_mmc_device(1); - if (sunxi_mmc_has_egon_boot_signature(mmc1)) - return BOOT_DEVICE_MMC2; - } -#endif - - panic("Could not determine boot source\n"); - return -1; /* Never reached */ -} - -/* No confirmation data available in SPL yet. Hardcode bootmode */ -u32 spl_boot_mode(void) -{ - return MMCSD_MODE_RAW; -} - -void board_init_f(ulong dummy) -{ - spl_init(); - preloader_console_init(); - -#ifdef CONFIG_SPL_I2C_SUPPORT - /* Needed early by sunxi_board_init if PMU is enabled */ - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); -#endif - sunxi_board_init(); -} -#endif - -void reset_cpu(ulong addr) -{ -#ifdef CONFIG_SUNXI_GEN_SUN4I - static const struct sunxi_wdog *wdog = - &((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog; - - /* Set the watchdog for its shortest interval (.5s) and wait */ - writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode); - writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl); - - while (1) { - /* sun5i sometimes gets stuck without this */ - writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode); - } -#endif -#ifdef CONFIG_SUNXI_GEN_SUN6I - static const struct sunxi_wdog *wdog = - ((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog; - - /* Set the watchdog for its shortest interval (.5s) and wait */ - writel(WDT_CFG_RESET, &wdog->cfg); - writel(WDT_MODE_EN, &wdog->mode); - writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl); - while (1) { } -#endif -} - -#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/cpu/armv7/sunxi/clock.c b/arch/arm/cpu/armv7/sunxi/clock.c deleted file mode 100644 index 0b8fc94711..0000000000 --- a/arch/arm/cpu/armv7/sunxi/clock.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * (C) Copyright 2007-2012 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/gpio.h> -#include <asm/arch/prcm.h> -#include <asm/arch/sys_proto.h> - -__weak void clock_init_sec(void) -{ -} - -int clock_init(void) -{ -#ifdef CONFIG_SPL_BUILD - clock_init_safe(); -#endif - clock_init_uart(); - clock_init_sec(); - - return 0; -} - -/* These functions are shared between various SoCs so put them here. */ -#if defined CONFIG_SUNXI_GEN_SUN6I && !defined CONFIG_MACH_SUN9I -int clock_twi_onoff(int port, int state) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - if (port == 5) { - if (state) - prcm_apb0_enable( - PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_I2C); - else - prcm_apb0_disable( - PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_I2C); - return 0; - } - - /* set the apb clock gate and reset for twi */ - if (state) { - setbits_le32(&ccm->apb2_gate, - CLK_GATE_OPEN << (APB2_GATE_TWI_SHIFT + port)); - setbits_le32(&ccm->apb2_reset_cfg, - 1 << (APB2_RESET_TWI_SHIFT + port)); - } else { - clrbits_le32(&ccm->apb2_reset_cfg, - 1 << (APB2_RESET_TWI_SHIFT + port)); - clrbits_le32(&ccm->apb2_gate, - CLK_GATE_OPEN << (APB2_GATE_TWI_SHIFT + port)); - } - - return 0; -} -#endif diff --git a/arch/arm/cpu/armv7/sunxi/clock_sun4i.c b/arch/arm/cpu/armv7/sunxi/clock_sun4i.c deleted file mode 100644 index 7e6bd6137e..0000000000 --- a/arch/arm/cpu/armv7/sunxi/clock_sun4i.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * sun4i, sun5i and sun7i specific clock code - * - * (C) Copyright 2007-2012 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/gpio.h> -#include <asm/arch/sys_proto.h> - -#ifdef CONFIG_SPL_BUILD -void clock_init_safe(void) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* Set safe defaults until PMU is configured */ - writel(AXI_DIV_1 << AXI_DIV_SHIFT | - AHB_DIV_2 << AHB_DIV_SHIFT | - APB0_DIV_1 << APB0_DIV_SHIFT | - CPU_CLK_SRC_OSC24M << CPU_CLK_SRC_SHIFT, - &ccm->cpu_ahb_apb0_cfg); - writel(PLL1_CFG_DEFAULT, &ccm->pll1_cfg); - sdelay(200); - writel(AXI_DIV_1 << AXI_DIV_SHIFT | - AHB_DIV_2 << AHB_DIV_SHIFT | - APB0_DIV_1 << APB0_DIV_SHIFT | - CPU_CLK_SRC_PLL1 << CPU_CLK_SRC_SHIFT, - &ccm->cpu_ahb_apb0_cfg); -#ifdef CONFIG_MACH_SUN7I - setbits_le32(&ccm->ahb_gate0, 0x1 << AHB_GATE_OFFSET_DMA); -#endif - writel(PLL6_CFG_DEFAULT, &ccm->pll6_cfg); -#ifdef CONFIG_SUNXI_AHCI - setbits_le32(&ccm->ahb_gate0, 0x1 << AHB_GATE_OFFSET_SATA); - setbits_le32(&ccm->pll6_cfg, 0x1 << CCM_PLL6_CTRL_SATA_EN_SHIFT); -#endif -} -#endif - -void clock_init_uart(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* uart clock source is apb1 */ - writel(APB1_CLK_SRC_OSC24M| - APB1_CLK_RATE_N_1| - APB1_CLK_RATE_M(1), - &ccm->apb1_clk_div_cfg); - - /* open the clock for uart */ - setbits_le32(&ccm->apb1_gate, - CLK_GATE_OPEN << (APB1_GATE_UART_SHIFT+CONFIG_CONS_INDEX - 1)); -} - -int clock_twi_onoff(int port, int state) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* set the apb clock gate for twi */ - if (state) - setbits_le32(&ccm->apb1_gate, - CLK_GATE_OPEN << (APB1_GATE_TWI_SHIFT + port)); - else - clrbits_le32(&ccm->apb1_gate, - CLK_GATE_OPEN << (APB1_GATE_TWI_SHIFT + port)); - - return 0; -} - -#ifdef CONFIG_SPL_BUILD -#define PLL1_CFG(N, K, M, P) ( 1 << CCM_PLL1_CFG_ENABLE_SHIFT | \ - 0 << CCM_PLL1_CFG_VCO_RST_SHIFT | \ - 8 << CCM_PLL1_CFG_VCO_BIAS_SHIFT | \ - 0 << CCM_PLL1_CFG_PLL4_EXCH_SHIFT | \ - 16 << CCM_PLL1_CFG_BIAS_CUR_SHIFT | \ - (P)<< CCM_PLL1_CFG_DIVP_SHIFT | \ - 2 << CCM_PLL1_CFG_LCK_TMR_SHIFT | \ - (N)<< CCM_PLL1_CFG_FACTOR_N_SHIFT | \ - (K)<< CCM_PLL1_CFG_FACTOR_K_SHIFT | \ - 0 << CCM_PLL1_CFG_SIG_DELT_PAT_IN_SHIFT | \ - 0 << CCM_PLL1_CFG_SIG_DELT_PAT_EN_SHIFT | \ - (M)<< CCM_PLL1_CFG_FACTOR_M_SHIFT) - -static struct { - u32 pll1_cfg; - unsigned int freq; -} pll1_para[] = { - /* This array must be ordered by frequency. */ - { PLL1_CFG(31, 1, 0, 0), 1488000000}, - { PLL1_CFG(30, 1, 0, 0), 1440000000}, - { PLL1_CFG(29, 1, 0, 0), 1392000000}, - { PLL1_CFG(28, 1, 0, 0), 1344000000}, - { PLL1_CFG(27, 1, 0, 0), 1296000000}, - { PLL1_CFG(26, 1, 0, 0), 1248000000}, - { PLL1_CFG(25, 1, 0, 0), 1200000000}, - { PLL1_CFG(24, 1, 0, 0), 1152000000}, - { PLL1_CFG(23, 1, 0, 0), 1104000000}, - { PLL1_CFG(22, 1, 0, 0), 1056000000}, - { PLL1_CFG(21, 1, 0, 0), 1008000000}, - { PLL1_CFG(20, 1, 0, 0), 960000000 }, - { PLL1_CFG(19, 1, 0, 0), 912000000 }, - { PLL1_CFG(16, 1, 0, 0), 768000000 }, - /* Final catchall entry 384MHz*/ - { PLL1_CFG(16, 0, 0, 0), 0 }, - -}; - -void clock_set_pll1(unsigned int hz) -{ - int i = 0; - int axi, ahb, apb0; - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* Find target frequency */ - while (pll1_para[i].freq > hz) - i++; - - hz = pll1_para[i].freq; - if (! hz) - hz = 384000000; - - /* Calculate system clock divisors */ - axi = DIV_ROUND_UP(hz, 432000000); /* Max 450MHz */ - ahb = DIV_ROUND_UP(hz/axi, 204000000); /* Max 250MHz */ - apb0 = 2; /* Max 150MHz */ - - printf("CPU: %uHz, AXI/AHB/APB: %d/%d/%d\n", hz, axi, ahb, apb0); - - /* Map divisors to register values */ - axi = axi - 1; - if (ahb > 4) - ahb = 3; - else if (ahb > 2) - ahb = 2; - else if (ahb > 1) - ahb = 1; - else - ahb = 0; - - apb0 = apb0 - 1; - - /* Switch to 24MHz clock while changing PLL1 */ - writel(AXI_DIV_1 << AXI_DIV_SHIFT | - AHB_DIV_2 << AHB_DIV_SHIFT | - APB0_DIV_1 << APB0_DIV_SHIFT | - CPU_CLK_SRC_OSC24M << CPU_CLK_SRC_SHIFT, - &ccm->cpu_ahb_apb0_cfg); - sdelay(20); - - /* Configure sys clock divisors */ - writel(axi << AXI_DIV_SHIFT | - ahb << AHB_DIV_SHIFT | - apb0 << APB0_DIV_SHIFT | - CPU_CLK_SRC_OSC24M << CPU_CLK_SRC_SHIFT, - &ccm->cpu_ahb_apb0_cfg); - - /* Configure PLL1 at the desired frequency */ - writel(pll1_para[i].pll1_cfg, &ccm->pll1_cfg); - sdelay(200); - - /* Switch CPU to PLL1 */ - writel(axi << AXI_DIV_SHIFT | - ahb << AHB_DIV_SHIFT | - apb0 << APB0_DIV_SHIFT | - CPU_CLK_SRC_PLL1 << CPU_CLK_SRC_SHIFT, - &ccm->cpu_ahb_apb0_cfg); - sdelay(20); -} -#endif - -void clock_set_pll3(unsigned int clk) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - if (clk == 0) { - clrbits_le32(&ccm->pll3_cfg, CCM_PLL3_CTRL_EN); - return; - } - - /* PLL3 rate = 3000000 * m */ - writel(CCM_PLL3_CTRL_EN | CCM_PLL3_CTRL_INTEGER_MODE | - CCM_PLL3_CTRL_M(clk / 3000000), &ccm->pll3_cfg); -} - -unsigned int clock_get_pll3(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - uint32_t rval = readl(&ccm->pll3_cfg); - int m = ((rval & CCM_PLL3_CTRL_M_MASK) >> CCM_PLL3_CTRL_M_SHIFT); - return 3000000 * m; -} - -unsigned int clock_get_pll5p(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - uint32_t rval = readl(&ccm->pll5_cfg); - int n = ((rval & CCM_PLL5_CTRL_N_MASK) >> CCM_PLL5_CTRL_N_SHIFT); - int k = ((rval & CCM_PLL5_CTRL_K_MASK) >> CCM_PLL5_CTRL_K_SHIFT) + 1; - int p = ((rval & CCM_PLL5_CTRL_P_MASK) >> CCM_PLL5_CTRL_P_SHIFT); - return (24000000 * n * k) >> p; -} - -unsigned int clock_get_pll6(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - uint32_t rval = readl(&ccm->pll6_cfg); - int n = ((rval & CCM_PLL6_CTRL_N_MASK) >> CCM_PLL6_CTRL_N_SHIFT); - int k = ((rval & CCM_PLL6_CTRL_K_MASK) >> CCM_PLL6_CTRL_K_SHIFT) + 1; - return 24000000 * n * k / 2; -} - -void clock_set_de_mod_clock(u32 *clk_cfg, unsigned int hz) -{ - int pll = clock_get_pll5p(); - int div = 1; - - while ((pll / div) > hz) - div++; - - writel(CCM_DE_CTRL_GATE | CCM_DE_CTRL_RST | CCM_DE_CTRL_PLL5P | - CCM_DE_CTRL_M(div), clk_cfg); -} diff --git a/arch/arm/cpu/armv7/sunxi/clock_sun6i.c b/arch/arm/cpu/armv7/sunxi/clock_sun6i.c deleted file mode 100644 index 15272c9e71..0000000000 --- a/arch/arm/cpu/armv7/sunxi/clock_sun6i.c +++ /dev/null @@ -1,274 +0,0 @@ -/* - * sun6i specific clock code - * - * (C) Copyright 2007-2012 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/prcm.h> -#include <asm/arch/sys_proto.h> - -#ifdef CONFIG_SPL_BUILD -void clock_init_safe(void) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - struct sunxi_prcm_reg * const prcm = - (struct sunxi_prcm_reg *)SUNXI_PRCM_BASE; - - /* Set PLL ldo voltage without this PLL6 does not work properly */ - clrsetbits_le32(&prcm->pll_ctrl1, PRCM_PLL_CTRL_LDO_KEY_MASK, - PRCM_PLL_CTRL_LDO_KEY); - clrsetbits_le32(&prcm->pll_ctrl1, ~PRCM_PLL_CTRL_LDO_KEY_MASK, - PRCM_PLL_CTRL_LDO_DIGITAL_EN | PRCM_PLL_CTRL_LDO_ANALOG_EN | - PRCM_PLL_CTRL_EXT_OSC_EN | PRCM_PLL_CTRL_LDO_OUT_L(1140)); - clrbits_le32(&prcm->pll_ctrl1, PRCM_PLL_CTRL_LDO_KEY_MASK); - - clock_set_pll1(408000000); - - writel(PLL6_CFG_DEFAULT, &ccm->pll6_cfg); - while (!(readl(&ccm->pll6_cfg) & CCM_PLL6_CTRL_LOCK)) - ; - - writel(AHB1_ABP1_DIV_DEFAULT, &ccm->ahb1_apb1_div); - - writel(MBUS_CLK_DEFAULT, &ccm->mbus0_clk_cfg); - writel(MBUS_CLK_DEFAULT, &ccm->mbus1_clk_cfg); -} -#endif - -void clock_init_sec(void) -{ -#ifdef CONFIG_MACH_SUN8I_H3 - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - setbits_le32(&ccm->ccu_sec_switch, - CCM_SEC_SWITCH_MBUS_NONSEC | - CCM_SEC_SWITCH_BUS_NONSEC | - CCM_SEC_SWITCH_PLL_NONSEC); -#endif -} - -void clock_init_uart(void) -{ -#if CONFIG_CONS_INDEX < 5 - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* uart clock source is apb2 */ - writel(APB2_CLK_SRC_OSC24M| - APB2_CLK_RATE_N_1| - APB2_CLK_RATE_M(1), - &ccm->apb2_div); - - /* open the clock for uart */ - setbits_le32(&ccm->apb2_gate, - CLK_GATE_OPEN << (APB2_GATE_UART_SHIFT + - CONFIG_CONS_INDEX - 1)); - - /* deassert uart reset */ - setbits_le32(&ccm->apb2_reset_cfg, - 1 << (APB2_RESET_UART_SHIFT + - CONFIG_CONS_INDEX - 1)); -#else - /* enable R_PIO and R_UART clocks, and de-assert resets */ - prcm_apb0_enable(PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_UART); -#endif -} - -#ifdef CONFIG_SPL_BUILD -void clock_set_pll1(unsigned int clk) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - const int p = 0; - int k = 1; - int m = 1; - - if (clk > 1152000000) { - k = 2; - } else if (clk > 768000000) { - k = 3; - m = 2; - } - - /* Switch to 24MHz clock while changing PLL1 */ - writel(AXI_DIV_3 << AXI_DIV_SHIFT | - ATB_DIV_2 << ATB_DIV_SHIFT | - CPU_CLK_SRC_OSC24M << CPU_CLK_SRC_SHIFT, - &ccm->cpu_axi_cfg); - - /* - * sun6i: PLL1 rate = ((24000000 * n * k) >> 0) / m (p is ignored) - * sun8i: PLL1 rate = ((24000000 * n * k) >> p) / m - */ - writel(CCM_PLL1_CTRL_EN | CCM_PLL1_CTRL_P(p) | - CCM_PLL1_CTRL_N(clk / (24000000 * k / m)) | - CCM_PLL1_CTRL_K(k) | CCM_PLL1_CTRL_M(m), &ccm->pll1_cfg); - sdelay(200); - - /* Switch CPU to PLL1 */ - writel(AXI_DIV_3 << AXI_DIV_SHIFT | - ATB_DIV_2 << ATB_DIV_SHIFT | - CPU_CLK_SRC_PLL1 << CPU_CLK_SRC_SHIFT, - &ccm->cpu_axi_cfg); -} -#endif - -void clock_set_pll3(unsigned int clk) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - const int m = 8; /* 3 MHz steps just like sun4i, sun5i and sun7i */ - - if (clk == 0) { - clrbits_le32(&ccm->pll3_cfg, CCM_PLL3_CTRL_EN); - return; - } - - /* PLL3 rate = 24000000 * n / m */ - writel(CCM_PLL3_CTRL_EN | CCM_PLL3_CTRL_INTEGER_MODE | - CCM_PLL3_CTRL_N(clk / (24000000 / m)) | CCM_PLL3_CTRL_M(m), - &ccm->pll3_cfg); -} - -void clock_set_pll5(unsigned int clk, bool sigma_delta_enable) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - const int max_n = 32; - int k = 1, m = 2; - - if (sigma_delta_enable) - writel(CCM_PLL5_PATTERN, &ccm->pll5_pattern_cfg); - - /* PLL5 rate = 24000000 * n * k / m */ - if (clk > 24000000 * k * max_n / m) { - m = 1; - if (clk > 24000000 * k * max_n / m) - k = 2; - } - writel(CCM_PLL5_CTRL_EN | - (sigma_delta_enable ? CCM_PLL5_CTRL_SIGMA_DELTA_EN : 0) | - CCM_PLL5_CTRL_UPD | - CCM_PLL5_CTRL_N(clk / (24000000 * k / m)) | - CCM_PLL5_CTRL_K(k) | CCM_PLL5_CTRL_M(m), &ccm->pll5_cfg); - - udelay(5500); -} - -#ifdef CONFIG_MACH_SUN6I -void clock_set_mipi_pll(unsigned int clk) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - unsigned int k, m, n, value, diff; - unsigned best_k = 0, best_m = 0, best_n = 0, best_diff = 0xffffffff; - unsigned int src = clock_get_pll3(); - - /* All calculations are in KHz to avoid overflows */ - clk /= 1000; - src /= 1000; - - /* Pick the closest lower clock */ - for (k = 1; k <= 4; k++) { - for (m = 1; m <= 16; m++) { - for (n = 1; n <= 16; n++) { - value = src * n * k / m; - if (value > clk) - continue; - - diff = clk - value; - if (diff < best_diff) { - best_diff = diff; - best_k = k; - best_m = m; - best_n = n; - } - if (diff == 0) - goto done; - } - } - } - -done: - writel(CCM_MIPI_PLL_CTRL_EN | CCM_MIPI_PLL_CTRL_LDO_EN | - CCM_MIPI_PLL_CTRL_N(best_n) | CCM_MIPI_PLL_CTRL_K(best_k) | - CCM_MIPI_PLL_CTRL_M(best_m), &ccm->mipi_pll_cfg); -} -#endif - -#ifdef CONFIG_MACH_SUN8I_A33 -void clock_set_pll11(unsigned int clk, bool sigma_delta_enable) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - if (sigma_delta_enable) - writel(CCM_PLL11_PATTERN, &ccm->pll5_pattern_cfg); - - writel(CCM_PLL11_CTRL_EN | CCM_PLL11_CTRL_UPD | - (sigma_delta_enable ? CCM_PLL11_CTRL_SIGMA_DELTA_EN : 0) | - CCM_PLL11_CTRL_N(clk / 24000000), &ccm->pll11_cfg); - - while (readl(&ccm->pll11_cfg) & CCM_PLL11_CTRL_UPD) - ; -} -#endif - -unsigned int clock_get_pll3(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - uint32_t rval = readl(&ccm->pll3_cfg); - int n = ((rval & CCM_PLL3_CTRL_N_MASK) >> CCM_PLL3_CTRL_N_SHIFT) + 1; - int m = ((rval & CCM_PLL3_CTRL_M_MASK) >> CCM_PLL3_CTRL_M_SHIFT) + 1; - - /* Multiply by 1000 after dividing by m to avoid integer overflows */ - return (24000 * n / m) * 1000; -} - -unsigned int clock_get_pll6(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - uint32_t rval = readl(&ccm->pll6_cfg); - int n = ((rval & CCM_PLL6_CTRL_N_MASK) >> CCM_PLL6_CTRL_N_SHIFT) + 1; - int k = ((rval & CCM_PLL6_CTRL_K_MASK) >> CCM_PLL6_CTRL_K_SHIFT) + 1; - return 24000000 * n * k / 2; -} - -unsigned int clock_get_mipi_pll(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - uint32_t rval = readl(&ccm->mipi_pll_cfg); - unsigned int n = ((rval & CCM_MIPI_PLL_CTRL_N_MASK) >> CCM_MIPI_PLL_CTRL_N_SHIFT) + 1; - unsigned int k = ((rval & CCM_MIPI_PLL_CTRL_K_MASK) >> CCM_MIPI_PLL_CTRL_K_SHIFT) + 1; - unsigned int m = ((rval & CCM_MIPI_PLL_CTRL_M_MASK) >> CCM_MIPI_PLL_CTRL_M_SHIFT) + 1; - unsigned int src = clock_get_pll3(); - - /* Multiply by 1000 after dividing by m to avoid integer overflows */ - return ((src / 1000) * n * k / m) * 1000; -} - -void clock_set_de_mod_clock(u32 *clk_cfg, unsigned int hz) -{ - int pll = clock_get_pll6() * 2; - int div = 1; - - while ((pll / div) > hz) - div++; - - writel(CCM_DE_CTRL_GATE | CCM_DE_CTRL_PLL6_2X | CCM_DE_CTRL_M(div), - clk_cfg); -} diff --git a/arch/arm/cpu/armv7/sunxi/clock_sun8i_a83t.c b/arch/arm/cpu/armv7/sunxi/clock_sun8i_a83t.c deleted file mode 100644 index 3e8728fff6..0000000000 --- a/arch/arm/cpu/armv7/sunxi/clock_sun8i_a83t.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * A83 specific clock code - * - * (C) Copyright 2007-2012 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * (C) Copyright 2015 Vishnu Patekar <vishnupatekar0510@gmail.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/prcm.h> -#include <asm/arch/sys_proto.h> - -#ifdef CONFIG_SPL_BUILD -void clock_init_safe(void) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - clock_set_pll1(408000000); - /* enable pll_hsic, default is 480M */ - writel(PLL8_CFG_DEFAULT, &ccm->pll8_cfg); - writel(readl(&ccm->pll8_cfg) | (0x1 << 31), &ccm->pll8_cfg); - while (!(readl(&ccm->pll_stable_status) & (1 << 8))) {} - - /* switch to default 24MHz before changing to hsic */ - writel(0x0, &ccm->cci400_cfg); - sdelay(50); - writel(CCM_CCI400_CLK_SEL_HSIC, &ccm->cci400_cfg); - sdelay(100); - - /* switch before changing pll6 */ - clrsetbits_le32(&ccm->ahb1_apb1_div, AHB1_CLK_SRC_MASK, - AHB1_CLK_SRC_OSC24M); - writel(PLL6_CFG_DEFAULT, &ccm->pll6_cfg); - while (!(readl(&ccm->pll_stable_status) & (1 << 6))) {} - - writel(AHB1_ABP1_DIV_DEFAULT, &ccm->ahb1_apb1_div); - writel(CCM_MBUS_RESET_RESET, &ccm->mbus_reset); - writel(MBUS_CLK_DEFAULT, &ccm->mbus_clk_cfg); - - /* timestamp */ - writel(1, 0x01720000); -} -#endif - -void clock_init_uart(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* uart clock source is apb2 */ - writel(APB2_CLK_SRC_OSC24M| - APB2_CLK_RATE_N_1| - APB2_CLK_RATE_M(1), - &ccm->apb2_div); - - /* open the clock for uart */ - setbits_le32(&ccm->apb2_gate, - CLK_GATE_OPEN << (APB2_GATE_UART_SHIFT + - CONFIG_CONS_INDEX - 1)); - - /* deassert uart reset */ - setbits_le32(&ccm->apb2_reset_cfg, - 1 << (APB2_RESET_UART_SHIFT + - CONFIG_CONS_INDEX - 1)); -} - -#ifdef CONFIG_SPL_BUILD -void clock_set_pll1(unsigned int clk) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - const int p = 0; - - /* Switch to 24MHz clock while changing PLL1 */ - writel(AXI_DIV_2 << AXI0_DIV_SHIFT | - AXI_DIV_2 << AXI1_DIV_SHIFT | - CPU_CLK_SRC_OSC24M << C0_CPUX_CLK_SRC_SHIFT | - CPU_CLK_SRC_OSC24M << C1_CPUX_CLK_SRC_SHIFT, - &ccm->cpu_axi_cfg); - - /* clk = 24*n/p, p is ignored if clock is >288MHz */ - writel(CCM_PLL1_CTRL_EN | CCM_PLL1_CTRL_P(p) | CMM_PLL1_CLOCK_TIME_2 | - CCM_PLL1_CTRL_N(clk / 24000000), - &ccm->pll1_c0_cfg); - while (!(readl(&ccm->pll_stable_status) & 0x01)) {} - - writel(CCM_PLL1_CTRL_EN | CCM_PLL1_CTRL_P(p) | CMM_PLL1_CLOCK_TIME_2 | - CCM_PLL1_CTRL_N(clk / (24000000)), - &ccm->pll1_c1_cfg); - while (!(readl(&ccm->pll_stable_status) & 0x02)) {} - - /* Switch CPU to PLL1 */ - writel(AXI_DIV_2 << AXI0_DIV_SHIFT | - AXI_DIV_2 << AXI1_DIV_SHIFT | - CPU_CLK_SRC_PLL1 << C0_CPUX_CLK_SRC_SHIFT | - CPU_CLK_SRC_PLL1 << C1_CPUX_CLK_SRC_SHIFT, - &ccm->cpu_axi_cfg); -} -#endif - -void clock_set_pll5(unsigned int clk) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - unsigned int div1 = 0, div2 = 0; - - /* A83T PLL5 DDR rate = 24000000 * (n+1)/(div1+1)/(div2+1) */ - writel(CCM_PLL5_CTRL_EN | CCM_PLL5_CTRL_UPD | - CCM_PLL5_CTRL_N(clk / (24000000)) | - div2 << CCM_PLL5_DIV2_SHIFT | - div1 << CCM_PLL5_DIV1_SHIFT, &ccm->pll5_cfg); - - udelay(5500); -} - - -unsigned int clock_get_pll6(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - uint32_t rval = readl(&ccm->pll6_cfg); - int n = ((rval & CCM_PLL6_CTRL_N_MASK) >> CCM_PLL6_CTRL_N_SHIFT); - int div1 = ((rval & CCM_PLL6_CTRL_DIV1_MASK) >> - CCM_PLL6_CTRL_DIV1_SHIFT) + 1; - int div2 = ((rval & CCM_PLL6_CTRL_DIV2_MASK) >> - CCM_PLL6_CTRL_DIV2_SHIFT) + 1; - return 24000000 * n / div1 / div2; -} diff --git a/arch/arm/cpu/armv7/sunxi/clock_sun9i.c b/arch/arm/cpu/armv7/sunxi/clock_sun9i.c deleted file mode 100644 index 180634c838..0000000000 --- a/arch/arm/cpu/armv7/sunxi/clock_sun9i.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * sun9i specific clock code - * - * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/prcm.h> -#include <asm/arch/sys_proto.h> - -void clock_init_uart(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* open the clock for uart */ - setbits_le32(&ccm->apb1_gate, - CLK_GATE_OPEN << (APB1_GATE_UART_SHIFT + - CONFIG_CONS_INDEX - 1)); - /* deassert uart reset */ - setbits_le32(&ccm->apb1_reset_cfg, - 1 << (APB1_RESET_UART_SHIFT + - CONFIG_CONS_INDEX - 1)); - - /* Dup with clock_init_safe(), drop once sun9i SPL support lands */ - writel(PLL4_CFG_DEFAULT, &ccm->pll4_periph0_cfg); -} - -int clock_twi_onoff(int port, int state) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - if (port > 4) - return -1; - - /* set the apb reset and clock gate for twi */ - if (state) { - setbits_le32(&ccm->apb1_gate, - CLK_GATE_OPEN << (APB1_GATE_TWI_SHIFT + port)); - setbits_le32(&ccm->apb1_reset_cfg, - 1 << (APB1_RESET_TWI_SHIFT + port)); - } else { - clrbits_le32(&ccm->apb1_reset_cfg, - 1 << (APB1_RESET_TWI_SHIFT + port)); - clrbits_le32(&ccm->apb1_gate, - CLK_GATE_OPEN << (APB1_GATE_TWI_SHIFT + port)); - } - - return 0; -} - -unsigned int clock_get_pll4_periph0(void) -{ - struct sunxi_ccm_reg *const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - uint32_t rval = readl(&ccm->pll4_periph0_cfg); - int n = ((rval & CCM_PLL4_CTRL_N_MASK) >> CCM_PLL4_CTRL_N_SHIFT); - int p = ((rval & CCM_PLL4_CTRL_P_MASK) >> CCM_PLL4_CTRL_P_SHIFT); - int m = ((rval & CCM_PLL4_CTRL_M_MASK) >> CCM_PLL4_CTRL_M_SHIFT) + 1; - const int k = 1; - - return ((24000000 * n * k) >> p) / m; -} diff --git a/arch/arm/cpu/armv7/sunxi/cpu_info.c b/arch/arm/cpu/armv7/sunxi/cpu_info.c deleted file mode 100644 index b9bc70ca86..0000000000 --- a/arch/arm/cpu/armv7/sunxi/cpu_info.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * (C) Copyright 2007-2011 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/cpu.h> -#include <asm/arch/clock.h> -#include <axp_pmic.h> -#include <errno.h> - -#ifdef CONFIG_MACH_SUN6I -int sunxi_get_ss_bonding_id(void) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - static int bonding_id = -1; - - if (bonding_id != -1) - return bonding_id; - - /* Enable Security System */ - setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS); - setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS); - - bonding_id = readl(SUNXI_SS_BASE); - bonding_id = (bonding_id >> 16) & 0x7; - - /* Disable Security System again */ - clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS); - clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS); - - return bonding_id; -} -#endif - -#ifdef CONFIG_DISPLAY_CPUINFO -int print_cpuinfo(void) -{ -#ifdef CONFIG_MACH_SUN4I - puts("CPU: Allwinner A10 (SUN4I)\n"); -#elif defined CONFIG_MACH_SUN5I - u32 val = readl(SUNXI_SID_BASE + 0x08); - switch ((val >> 12) & 0xf) { - case 0: puts("CPU: Allwinner A12 (SUN5I)\n"); break; - case 3: puts("CPU: Allwinner A13 (SUN5I)\n"); break; - case 7: puts("CPU: Allwinner A10s (SUN5I)\n"); break; - default: puts("CPU: Allwinner A1X (SUN5I)\n"); - } -#elif defined CONFIG_MACH_SUN6I - switch (sunxi_get_ss_bonding_id()) { - case SUNXI_SS_BOND_ID_A31: - puts("CPU: Allwinner A31 (SUN6I)\n"); - break; - case SUNXI_SS_BOND_ID_A31S: - puts("CPU: Allwinner A31s (SUN6I)\n"); - break; - default: - printf("CPU: Allwinner A31? (SUN6I, id: %d)\n", - sunxi_get_ss_bonding_id()); - } -#elif defined CONFIG_MACH_SUN7I - puts("CPU: Allwinner A20 (SUN7I)\n"); -#elif defined CONFIG_MACH_SUN8I_A23 - puts("CPU: Allwinner A23 (SUN8I)\n"); -#elif defined CONFIG_MACH_SUN8I_A33 - puts("CPU: Allwinner A33 (SUN8I)\n"); -#elif defined CONFIG_MACH_SUN8I_H3 - puts("CPU: Allwinner H3 (SUN8I)\n"); -#elif defined CONFIG_MACH_SUN9I - puts("CPU: Allwinner A80 (SUN9I)\n"); -#elif defined CONFIG_MACH_SUN8I_A83T - puts("CPU: Allwinner A83T (SUN8I)\n"); -#else -#warning Please update cpu_info.c with correct CPU information - puts("CPU: SUNXI Family\n"); -#endif - return 0; -} -#endif - -int sunxi_get_sid(unsigned int *sid) -{ -#ifdef CONFIG_AXP221_POWER - return axp_get_sid(sid); -#elif defined SUNXI_SID_BASE - int i; - - for (i = 0; i< 4; i++) - sid[i] = readl(SUNXI_SID_BASE + 4 * i); - - return 0; -#else - return -ENODEV; -#endif -} diff --git a/arch/arm/cpu/armv7/sunxi/dram_helpers.c b/arch/arm/cpu/armv7/sunxi/dram_helpers.c deleted file mode 100644 index 9a94e1b679..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_helpers.c +++ /dev/null @@ -1,37 +0,0 @@ -/* - * DRAM init helper functions - * - * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/dram.h> - -/* - * Wait up to 1s for value to be set in given part of reg. - */ -void mctl_await_completion(u32 *reg, u32 mask, u32 val) -{ - unsigned long tmo = timer_get_us() + 1000000; - - while ((readl(reg) & mask) != val) { - if (timer_get_us() > tmo) - panic("Timeout initialising DRAM\n"); - } -} - -/* - * Test if memory at offset offset matches memory at begin of DRAM - */ -bool mctl_mem_matches(u32 offset) -{ - /* Try to write different values to RAM at two addresses */ - writel(0, CONFIG_SYS_SDRAM_BASE); - writel(0xaa55aa55, CONFIG_SYS_SDRAM_BASE + offset); - /* Check if the same value is actually observed when reading back */ - return readl(CONFIG_SYS_SDRAM_BASE) == - readl(CONFIG_SYS_SDRAM_BASE + offset); -} diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun4i.c b/arch/arm/cpu/armv7/sunxi/dram_sun4i.c deleted file mode 100644 index f7b4915037..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_sun4i.c +++ /dev/null @@ -1,737 +0,0 @@ -/* - * sunxi DRAM controller initialization - * (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net> - * (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net> - * - * Based on sun4i Linux kernel sources mach-sunxi/pm/standby/dram*.c - * and earlier U-Boot Allwiner A10 SPL work - * - * (C) Copyright 2007-2012 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Berg Xing <bergxing@allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * Unfortunately the only documentation we have on the sun7i DRAM - * controller is Allwinner boot0 + boot1 code, and that code uses - * magic numbers & shifts with no explanations. Hence this code is - * rather undocumented and full of magic. - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/dram.h> -#include <asm/arch/timer.h> -#include <asm/arch/sys_proto.h> - -#define CPU_CFG_CHIP_VER(n) ((n) << 6) -#define CPU_CFG_CHIP_VER_MASK CPU_CFG_CHIP_VER(0x3) -#define CPU_CFG_CHIP_REV_A 0x0 -#define CPU_CFG_CHIP_REV_C1 0x1 -#define CPU_CFG_CHIP_REV_C2 0x2 -#define CPU_CFG_CHIP_REV_B 0x3 - -/* - * Wait up to 1s for mask to be clear in given reg. - */ -static inline void await_bits_clear(u32 *reg, u32 mask) -{ - mctl_await_completion(reg, mask, 0); -} - -/* - * Wait up to 1s for mask to be set in given reg. - */ -static inline void await_bits_set(u32 *reg, u32 mask) -{ - mctl_await_completion(reg, mask, mask); -} - -/* - * This performs the external DRAM reset by driving the RESET pin low and - * then high again. According to the DDR3 spec, the RESET pin needs to be - * kept low for at least 200 us. - */ -static void mctl_ddr3_reset(void) -{ - struct sunxi_dram_reg *dram = - (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - -#ifdef CONFIG_MACH_SUN4I - struct sunxi_timer_reg *timer = - (struct sunxi_timer_reg *)SUNXI_TIMER_BASE; - u32 reg_val; - - writel(0, &timer->cpu_cfg); - reg_val = readl(&timer->cpu_cfg); - - if ((reg_val & CPU_CFG_CHIP_VER_MASK) != - CPU_CFG_CHIP_VER(CPU_CFG_CHIP_REV_A)) { - setbits_le32(&dram->mcr, DRAM_MCR_RESET); - udelay(200); - clrbits_le32(&dram->mcr, DRAM_MCR_RESET); - } else -#endif - { - clrbits_le32(&dram->mcr, DRAM_MCR_RESET); - udelay(200); - setbits_le32(&dram->mcr, DRAM_MCR_RESET); - } - /* After the RESET pin is de-asserted, the DDR3 spec requires to wait - * for additional 500 us before driving the CKE pin (Clock Enable) - * high. The duration of this delay can be configured in the SDR_IDCR - * (Initialization Delay Configuration Register) and applied - * automatically by the DRAM controller during the DDR3 initialization - * step. But SDR_IDCR has limited range on sun4i/sun5i hardware and - * can't provide sufficient delay at DRAM clock frequencies higher than - * 524 MHz (while Allwinner A13 supports DRAM clock frequency up to - * 533 MHz according to the datasheet). Additionally, there is no - * official documentation for the SDR_IDCR register anywhere, and - * there is always a chance that we are interpreting it wrong. - * Better be safe than sorry, so add an explicit delay here. */ - udelay(500); -} - -static void mctl_set_drive(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - -#ifdef CONFIG_MACH_SUN7I - clrsetbits_le32(&dram->mcr, DRAM_MCR_MODE_NORM(0x3) | (0x3 << 28), -#else - clrsetbits_le32(&dram->mcr, DRAM_MCR_MODE_NORM(0x3), -#endif - DRAM_MCR_MODE_EN(0x3) | - 0xffc); -} - -static void mctl_itm_disable(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - - clrsetbits_le32(&dram->ccr, DRAM_CCR_INIT, DRAM_CCR_ITM_OFF); -} - -static void mctl_itm_enable(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - - clrbits_le32(&dram->ccr, DRAM_CCR_ITM_OFF); -} - -static void mctl_itm_reset(void) -{ - mctl_itm_disable(); - udelay(1); /* ITM reset needs a bit of delay */ - mctl_itm_enable(); - udelay(1); -} - -static void mctl_enable_dll0(u32 phase) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - - clrsetbits_le32(&dram->dllcr[0], 0x3f << 6, - ((phase >> 16) & 0x3f) << 6); - clrsetbits_le32(&dram->dllcr[0], DRAM_DLLCR_NRESET, DRAM_DLLCR_DISABLE); - udelay(2); - - clrbits_le32(&dram->dllcr[0], DRAM_DLLCR_NRESET | DRAM_DLLCR_DISABLE); - udelay(22); - - clrsetbits_le32(&dram->dllcr[0], DRAM_DLLCR_DISABLE, DRAM_DLLCR_NRESET); - udelay(22); -} - -/* Get the number of DDR byte lanes */ -static u32 mctl_get_number_of_lanes(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - if ((readl(&dram->dcr) & DRAM_DCR_BUS_WIDTH_MASK) == - DRAM_DCR_BUS_WIDTH(DRAM_DCR_BUS_WIDTH_32BIT)) - return 4; - else - return 2; -} - -/* - * Note: This differs from pm/standby in that it checks the bus width - */ -static void mctl_enable_dllx(u32 phase) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - u32 i, number_of_lanes; - - number_of_lanes = mctl_get_number_of_lanes(); - - for (i = 1; i <= number_of_lanes; i++) { - clrsetbits_le32(&dram->dllcr[i], 0xf << 14, - (phase & 0xf) << 14); - clrsetbits_le32(&dram->dllcr[i], DRAM_DLLCR_NRESET, - DRAM_DLLCR_DISABLE); - phase >>= 4; - } - udelay(2); - - for (i = 1; i <= number_of_lanes; i++) - clrbits_le32(&dram->dllcr[i], DRAM_DLLCR_NRESET | - DRAM_DLLCR_DISABLE); - udelay(22); - - for (i = 1; i <= number_of_lanes; i++) - clrsetbits_le32(&dram->dllcr[i], DRAM_DLLCR_DISABLE, - DRAM_DLLCR_NRESET); - udelay(22); -} - -static u32 hpcr_value[32] = { -#ifdef CONFIG_MACH_SUN5I - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0x1031, 0x1031, 0x0735, 0x1035, - 0x1035, 0x0731, 0x1031, 0, - 0x0301, 0x0301, 0x0301, 0x0301, - 0x0301, 0x0301, 0x0301, 0 -#endif -#ifdef CONFIG_MACH_SUN4I - 0x0301, 0x0301, 0x0301, 0x0301, - 0x0301, 0x0301, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0x1031, 0x1031, 0x0735, 0x5031, - 0x1035, 0x0731, 0x1031, 0x0735, - 0x1035, 0x1031, 0x0731, 0x1035, - 0x1031, 0x0301, 0x0301, 0x0731 -#endif -#ifdef CONFIG_MACH_SUN7I - 0x0301, 0x0301, 0x0301, 0x0301, - 0x0301, 0x0301, 0x0301, 0x0301, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0x1031, 0x1031, 0x0735, 0x1035, - 0x1035, 0x0731, 0x1031, 0x0735, - 0x1035, 0x1031, 0x0731, 0x1035, - 0x0001, 0x1031, 0, 0x1031 - /* last row differs from boot0 source table - * 0x1031, 0x0301, 0x0301, 0x0731 - * but boot0 code skips #28 and #30, and sets #29 and #31 to the - * value from #28 entry (0x1031) - */ -#endif -}; - -static void mctl_configure_hostport(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - u32 i; - - for (i = 0; i < 32; i++) - writel(hpcr_value[i], &dram->hpcr[i]); -} - -static void mctl_setup_dram_clock(u32 clk, u32 mbus_clk) -{ - u32 reg_val; - struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - u32 pll5p_clk, pll6x_clk; - u32 pll5p_div, pll6x_div; - u32 pll5p_rate, pll6x_rate; - - /* setup DRAM PLL */ - reg_val = readl(&ccm->pll5_cfg); - reg_val &= ~CCM_PLL5_CTRL_M_MASK; /* set M to 0 (x1) */ - reg_val &= ~CCM_PLL5_CTRL_K_MASK; /* set K to 0 (x1) */ - reg_val &= ~CCM_PLL5_CTRL_N_MASK; /* set N to 0 (x0) */ - reg_val &= ~CCM_PLL5_CTRL_P_MASK; /* set P to 0 (x1) */ -#ifdef CONFIG_OLD_SUNXI_KERNEL_COMPAT - /* Old kernels are hardcoded to P=1 (divide by 2) */ - reg_val |= CCM_PLL5_CTRL_P(1); -#endif - if (clk >= 540 && clk < 552) { - /* dram = 540MHz */ - reg_val |= CCM_PLL5_CTRL_M(CCM_PLL5_CTRL_M_X(2)); - reg_val |= CCM_PLL5_CTRL_K(CCM_PLL5_CTRL_K_X(3)); - reg_val |= CCM_PLL5_CTRL_N(CCM_PLL5_CTRL_N_X(15)); - } else if (clk >= 512 && clk < 528) { - /* dram = 512MHz */ - reg_val |= CCM_PLL5_CTRL_M(CCM_PLL5_CTRL_M_X(3)); - reg_val |= CCM_PLL5_CTRL_K(CCM_PLL5_CTRL_K_X(4)); - reg_val |= CCM_PLL5_CTRL_N(CCM_PLL5_CTRL_N_X(16)); - } else if (clk >= 496 && clk < 504) { - /* dram = 496MHz */ - reg_val |= CCM_PLL5_CTRL_M(CCM_PLL5_CTRL_M_X(3)); - reg_val |= CCM_PLL5_CTRL_K(CCM_PLL5_CTRL_K_X(2)); - reg_val |= CCM_PLL5_CTRL_N(CCM_PLL5_CTRL_N_X(31)); - } else if (clk >= 468 && clk < 480) { - /* dram = 468MHz */ - reg_val |= CCM_PLL5_CTRL_M(CCM_PLL5_CTRL_M_X(2)); - reg_val |= CCM_PLL5_CTRL_K(CCM_PLL5_CTRL_K_X(3)); - reg_val |= CCM_PLL5_CTRL_N(CCM_PLL5_CTRL_N_X(13)); - } else if (clk >= 396 && clk < 408) { - /* dram = 396MHz */ - reg_val |= CCM_PLL5_CTRL_M(CCM_PLL5_CTRL_M_X(2)); - reg_val |= CCM_PLL5_CTRL_K(CCM_PLL5_CTRL_K_X(3)); - reg_val |= CCM_PLL5_CTRL_N(CCM_PLL5_CTRL_N_X(11)); - } else { - /* any other frequency that is a multiple of 24 */ - reg_val |= CCM_PLL5_CTRL_M(CCM_PLL5_CTRL_M_X(2)); - reg_val |= CCM_PLL5_CTRL_K(CCM_PLL5_CTRL_K_X(2)); - reg_val |= CCM_PLL5_CTRL_N(CCM_PLL5_CTRL_N_X(clk / 24)); - } - reg_val &= ~CCM_PLL5_CTRL_VCO_GAIN; /* PLL VCO Gain off */ - reg_val |= CCM_PLL5_CTRL_EN; /* PLL On */ - writel(reg_val, &ccm->pll5_cfg); - udelay(5500); - - setbits_le32(&ccm->pll5_cfg, CCM_PLL5_CTRL_DDR_CLK); - -#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I) - /* reset GPS */ - clrbits_le32(&ccm->gps_clk_cfg, CCM_GPS_CTRL_RESET | CCM_GPS_CTRL_GATE); - setbits_le32(&ccm->ahb_gate0, CCM_AHB_GATE_GPS); - udelay(1); - clrbits_le32(&ccm->ahb_gate0, CCM_AHB_GATE_GPS); -#endif - - /* setup MBUS clock */ - if (!mbus_clk) - mbus_clk = 300; - - /* PLL5P and PLL6 are the potential clock sources for MBUS */ - pll6x_clk = clock_get_pll6() / 1000000; -#ifdef CONFIG_MACH_SUN7I - pll6x_clk *= 2; /* sun7i uses PLL6*2, sun5i uses just PLL6 */ -#endif - pll5p_clk = clock_get_pll5p() / 1000000; - pll6x_div = DIV_ROUND_UP(pll6x_clk, mbus_clk); - pll5p_div = DIV_ROUND_UP(pll5p_clk, mbus_clk); - pll6x_rate = pll6x_clk / pll6x_div; - pll5p_rate = pll5p_clk / pll5p_div; - - if (pll6x_div <= 16 && pll6x_rate > pll5p_rate) { - /* use PLL6 as the MBUS clock source */ - reg_val = CCM_MBUS_CTRL_GATE | - CCM_MBUS_CTRL_CLK_SRC(CCM_MBUS_CTRL_CLK_SRC_PLL6) | - CCM_MBUS_CTRL_N(CCM_MBUS_CTRL_N_X(1)) | - CCM_MBUS_CTRL_M(CCM_MBUS_CTRL_M_X(pll6x_div)); - } else if (pll5p_div <= 16) { - /* use PLL5P as the MBUS clock source */ - reg_val = CCM_MBUS_CTRL_GATE | - CCM_MBUS_CTRL_CLK_SRC(CCM_MBUS_CTRL_CLK_SRC_PLL5) | - CCM_MBUS_CTRL_N(CCM_MBUS_CTRL_N_X(1)) | - CCM_MBUS_CTRL_M(CCM_MBUS_CTRL_M_X(pll5p_div)); - } else { - panic("Bad mbus_clk\n"); - } - writel(reg_val, &ccm->mbus_clk_cfg); - - /* - * open DRAMC AHB & DLL register clock - * close it first - */ -#if defined(CONFIG_MACH_SUN5I) || defined(CONFIG_MACH_SUN7I) - clrbits_le32(&ccm->ahb_gate0, CCM_AHB_GATE_SDRAM | CCM_AHB_GATE_DLL); -#else - clrbits_le32(&ccm->ahb_gate0, CCM_AHB_GATE_SDRAM); -#endif - udelay(22); - - /* then open it */ -#if defined(CONFIG_MACH_SUN5I) || defined(CONFIG_MACH_SUN7I) - setbits_le32(&ccm->ahb_gate0, CCM_AHB_GATE_SDRAM | CCM_AHB_GATE_DLL); -#else - setbits_le32(&ccm->ahb_gate0, CCM_AHB_GATE_SDRAM); -#endif - udelay(22); -} - -/* - * The data from rslrX and rdgrX registers (X=rank) is stored - * in a single 32-bit value using the following format: - * bits [31:26] - DQS gating system latency for byte lane 3 - * bits [25:24] - DQS gating phase select for byte lane 3 - * bits [23:18] - DQS gating system latency for byte lane 2 - * bits [17:16] - DQS gating phase select for byte lane 2 - * bits [15:10] - DQS gating system latency for byte lane 1 - * bits [ 9:8 ] - DQS gating phase select for byte lane 1 - * bits [ 7:2 ] - DQS gating system latency for byte lane 0 - * bits [ 1:0 ] - DQS gating phase select for byte lane 0 - */ -static void mctl_set_dqs_gating_delay(int rank, u32 dqs_gating_delay) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - u32 lane, number_of_lanes = mctl_get_number_of_lanes(); - /* rank0 gating system latency (3 bits per lane: cycles) */ - u32 slr = readl(rank == 0 ? &dram->rslr0 : &dram->rslr1); - /* rank0 gating phase select (2 bits per lane: 90, 180, 270, 360) */ - u32 dgr = readl(rank == 0 ? &dram->rdgr0 : &dram->rdgr1); - for (lane = 0; lane < number_of_lanes; lane++) { - u32 tmp = dqs_gating_delay >> (lane * 8); - slr &= ~(7 << (lane * 3)); - slr |= ((tmp >> 2) & 7) << (lane * 3); - dgr &= ~(3 << (lane * 2)); - dgr |= (tmp & 3) << (lane * 2); - } - writel(slr, rank == 0 ? &dram->rslr0 : &dram->rslr1); - writel(dgr, rank == 0 ? &dram->rdgr0 : &dram->rdgr1); -} - -static int dramc_scan_readpipe(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - u32 reg_val; - - /* data training trigger */ - clrbits_le32(&dram->csr, DRAM_CSR_FAILED); - setbits_le32(&dram->ccr, DRAM_CCR_DATA_TRAINING); - - /* check whether data training process has completed */ - await_bits_clear(&dram->ccr, DRAM_CCR_DATA_TRAINING); - - /* check data training result */ - reg_val = readl(&dram->csr); - if (reg_val & DRAM_CSR_FAILED) - return -1; - - return 0; -} - -static void dramc_clock_output_en(u32 on) -{ -#if defined(CONFIG_MACH_SUN5I) || defined(CONFIG_MACH_SUN7I) - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - - if (on) - setbits_le32(&dram->mcr, DRAM_MCR_DCLK_OUT); - else - clrbits_le32(&dram->mcr, DRAM_MCR_DCLK_OUT); -#endif -#ifdef CONFIG_MACH_SUN4I - struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - if (on) - setbits_le32(&ccm->dram_clk_gate, CCM_DRAM_CTRL_DCLK_OUT); - else - clrbits_le32(&ccm->dram_clk_gate, CCM_DRAM_CTRL_DCLK_OUT); -#endif -} - -/* tRFC in nanoseconds for different densities (from the DDR3 spec) */ -static const u16 tRFC_DDR3_table[6] = { - /* 256Mb 512Mb 1Gb 2Gb 4Gb 8Gb */ - 90, 90, 110, 160, 300, 350 -}; - -static void dramc_set_autorefresh_cycle(u32 clk, u32 density) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - u32 tRFC, tREFI; - - tRFC = (tRFC_DDR3_table[density] * clk + 999) / 1000; - tREFI = (7987 * clk) >> 10; /* <= 7.8us */ - - writel(DRAM_DRR_TREFI(tREFI) | DRAM_DRR_TRFC(tRFC), &dram->drr); -} - -/* Calculate the value for A11, A10, A9 bits in MR0 (write recovery) */ -static u32 ddr3_write_recovery(u32 clk) -{ - u32 twr_ns = 15; /* DDR3 spec says that it is 15ns for all speed bins */ - u32 twr_ck = (twr_ns * clk + 999) / 1000; - if (twr_ck < 5) - return 1; - else if (twr_ck <= 8) - return twr_ck - 4; - else if (twr_ck <= 10) - return 5; - else - return 6; -} - -/* - * If the dram->ppwrsctl (SDR_DPCR) register has the lowest bit set to 1, this - * means that DRAM is currently in self-refresh mode and retaining the old - * data. Since we have no idea what to do in this situation yet, just set this - * register to 0 and initialize DRAM in the same way as on any normal reboot - * (discarding whatever was stored there). - * - * Note: on sun7i hardware, the highest 16 bits need to be set to 0x1651 magic - * value for this write operation to have any effect. On sun5i hadware this - * magic value is not necessary. And on sun4i hardware the writes to this - * register seem to have no effect at all. - */ -static void mctl_disable_power_save(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - writel(0x16510000, &dram->ppwrsctl); -} - -/* - * After the DRAM is powered up or reset, the DDR3 spec requires to wait at - * least 500 us before driving the CKE pin (Clock Enable) high. The dram->idct - * (SDR_IDCR) register appears to configure this delay, which gets applied - * right at the time when the DRAM initialization is activated in the - * 'mctl_ddr3_initialize' function. - */ -static void mctl_set_cke_delay(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - - /* The CKE delay is represented in DRAM clock cycles, multiplied by N - * (where N=2 for sun4i/sun5i and N=3 for sun7i). Here it is set to - * the maximum possible value 0x1ffff, just like in the Allwinner's - * boot0 bootloader. The resulting delay value is somewhere between - * ~0.4 ms (sun5i with 648 MHz DRAM clock speed) and ~1.1 ms (sun7i - * with 360 MHz DRAM clock speed). */ - setbits_le32(&dram->idcr, 0x1ffff); -} - -/* - * This triggers the DRAM initialization. It performs sending the mode registers - * to the DRAM among other things. Very likely the ZQCL command is also getting - * executed (to do the initial impedance calibration on the DRAM side of the - * wire). The memory controller and the PHY must be already configured before - * calling this function. - */ -static void mctl_ddr3_initialize(void) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - setbits_le32(&dram->ccr, DRAM_CCR_INIT); - await_bits_clear(&dram->ccr, DRAM_CCR_INIT); -} - -/* - * Perform impedance calibration on the DRAM controller side of the wire. - */ -static void mctl_set_impedance(u32 zq, bool odt_en) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - u32 reg_val; - u32 zprog = zq & 0xFF, zdata = (zq >> 8) & 0xFFFFF; - -#ifndef CONFIG_MACH_SUN7I - /* Appears that some kind of automatically initiated default - * ZQ calibration is already in progress at this point on sun4i/sun5i - * hardware, but not on sun7i. So it is reasonable to wait for its - * completion before doing anything else. */ - await_bits_set(&dram->zqsr, DRAM_ZQSR_ZDONE); -#endif - - /* ZQ calibration is not really useful unless ODT is enabled */ - if (!odt_en) - return; - -#ifdef CONFIG_MACH_SUN7I - /* Enabling ODT in SDR_IOCR on sun7i hardware results in a deadlock - * unless bit 24 is set in SDR_ZQCR1. Not much is known about the - * SDR_ZQCR1 register, but there are hints indicating that it might - * be related to periodic impedance re-calibration. This particular - * magic value is borrowed from the Allwinner boot0 bootloader, and - * using it helps to avoid troubles */ - writel((1 << 24) | (1 << 1), &dram->zqcr1); -#endif - - /* Needed at least for sun5i, because it does not self clear there */ - clrbits_le32(&dram->zqcr0, DRAM_ZQCR0_ZCAL); - - if (zdata) { - /* Set the user supplied impedance data */ - reg_val = DRAM_ZQCR0_ZDEN | zdata; - writel(reg_val, &dram->zqcr0); - /* no need to wait, this takes effect immediately */ - } else { - /* Do the calibration using the external resistor */ - reg_val = DRAM_ZQCR0_ZCAL | DRAM_ZQCR0_IMP_DIV(zprog); - writel(reg_val, &dram->zqcr0); - /* Wait for the new impedance configuration to settle */ - await_bits_set(&dram->zqsr, DRAM_ZQSR_ZDONE); - } - - /* Needed at least for sun5i, because it does not self clear there */ - clrbits_le32(&dram->zqcr0, DRAM_ZQCR0_ZCAL); - - /* Set I/O configure register */ - writel(DRAM_IOCR_ODT_EN, &dram->iocr); -} - -static unsigned long dramc_init_helper(struct dram_para *para) -{ - struct sunxi_dram_reg *dram = (struct sunxi_dram_reg *)SUNXI_DRAMC_BASE; - u32 reg_val; - u32 density; - int ret_val; - - /* - * only single rank DDR3 is supported by this code even though the - * hardware can theoretically support DDR2 and up to two ranks - */ - if (para->type != DRAM_MEMORY_TYPE_DDR3 || para->rank_num != 1) - return 0; - - /* setup DRAM relative clock */ - mctl_setup_dram_clock(para->clock, para->mbus_clock); - - /* Disable any pad power save control */ - mctl_disable_power_save(); - - mctl_set_drive(); - - /* dram clock off */ - dramc_clock_output_en(0); - -#ifdef CONFIG_MACH_SUN4I - /* select dram controller 1 */ - writel(DRAM_CSEL_MAGIC, &dram->csel); -#endif - - mctl_itm_disable(); - mctl_enable_dll0(para->tpr3); - - /* configure external DRAM */ - reg_val = DRAM_DCR_TYPE_DDR3; - reg_val |= DRAM_DCR_IO_WIDTH(para->io_width >> 3); - - if (para->density == 256) - density = DRAM_DCR_CHIP_DENSITY_256M; - else if (para->density == 512) - density = DRAM_DCR_CHIP_DENSITY_512M; - else if (para->density == 1024) - density = DRAM_DCR_CHIP_DENSITY_1024M; - else if (para->density == 2048) - density = DRAM_DCR_CHIP_DENSITY_2048M; - else if (para->density == 4096) - density = DRAM_DCR_CHIP_DENSITY_4096M; - else if (para->density == 8192) - density = DRAM_DCR_CHIP_DENSITY_8192M; - else - density = DRAM_DCR_CHIP_DENSITY_256M; - - reg_val |= DRAM_DCR_CHIP_DENSITY(density); - reg_val |= DRAM_DCR_BUS_WIDTH((para->bus_width >> 3) - 1); - reg_val |= DRAM_DCR_RANK_SEL(para->rank_num - 1); - reg_val |= DRAM_DCR_CMD_RANK_ALL; - reg_val |= DRAM_DCR_MODE(DRAM_DCR_MODE_INTERLEAVE); - writel(reg_val, &dram->dcr); - - dramc_clock_output_en(1); - - mctl_set_impedance(para->zq, para->odt_en); - - mctl_set_cke_delay(); - - mctl_ddr3_reset(); - - udelay(1); - - await_bits_clear(&dram->ccr, DRAM_CCR_INIT); - - mctl_enable_dllx(para->tpr3); - - /* set refresh period */ - dramc_set_autorefresh_cycle(para->clock, density); - - /* set timing parameters */ - writel(para->tpr0, &dram->tpr0); - writel(para->tpr1, &dram->tpr1); - writel(para->tpr2, &dram->tpr2); - - reg_val = DRAM_MR_BURST_LENGTH(0x0); -#if (defined(CONFIG_MACH_SUN5I) || defined(CONFIG_MACH_SUN7I)) - reg_val |= DRAM_MR_POWER_DOWN; -#endif - reg_val |= DRAM_MR_CAS_LAT(para->cas - 4); - reg_val |= DRAM_MR_WRITE_RECOVERY(ddr3_write_recovery(para->clock)); - writel(reg_val, &dram->mr); - - writel(para->emr1, &dram->emr); - writel(para->emr2, &dram->emr2); - writel(para->emr3, &dram->emr3); - - /* disable drift compensation and set passive DQS window mode */ - clrsetbits_le32(&dram->ccr, DRAM_CCR_DQS_DRIFT_COMP, DRAM_CCR_DQS_GATE); - -#ifdef CONFIG_MACH_SUN7I - /* Command rate timing mode 2T & 1T */ - if (para->tpr4 & 0x1) - setbits_le32(&dram->ccr, DRAM_CCR_COMMAND_RATE_1T); -#endif - /* initialize external DRAM */ - mctl_ddr3_initialize(); - - /* scan read pipe value */ - mctl_itm_enable(); - - /* Hardware DQS gate training */ - ret_val = dramc_scan_readpipe(); - - if (ret_val < 0) - return 0; - - /* allow to override the DQS training results with a custom delay */ - if (para->dqs_gating_delay) - mctl_set_dqs_gating_delay(0, para->dqs_gating_delay); - - /* set the DQS gating window type */ - if (para->active_windowing) - clrbits_le32(&dram->ccr, DRAM_CCR_DQS_GATE); - else - setbits_le32(&dram->ccr, DRAM_CCR_DQS_GATE); - - mctl_itm_reset(); - - /* configure all host port */ - mctl_configure_hostport(); - - return get_ram_size((long *)PHYS_SDRAM_0, PHYS_SDRAM_0_SIZE); -} - -unsigned long dramc_init(struct dram_para *para) -{ - unsigned long dram_size, actual_density; - - /* If the dram configuration is not provided, use a default */ - if (!para) - return 0; - - /* if everything is known, then autodetection is not necessary */ - if (para->io_width && para->bus_width && para->density) - return dramc_init_helper(para); - - /* try to autodetect the DRAM bus width and density */ - para->io_width = 16; - para->bus_width = 32; -#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN5I) - /* only A0-A14 address lines on A10/A13, limiting max density to 4096 */ - para->density = 4096; -#else - /* all A0-A15 address lines on A20, which allow density 8192 */ - para->density = 8192; -#endif - - dram_size = dramc_init_helper(para); - if (!dram_size) { - /* if 32-bit bus width failed, try 16-bit bus width instead */ - para->bus_width = 16; - dram_size = dramc_init_helper(para); - if (!dram_size) { - /* if 16-bit bus width also failed, then bail out */ - return dram_size; - } - } - - /* check if we need to adjust the density */ - actual_density = (dram_size >> 17) * para->io_width / para->bus_width; - - if (actual_density != para->density) { - /* update the density and re-initialize DRAM again */ - para->density = actual_density; - dram_size = dramc_init_helper(para); - } - - return dram_size; -} diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun6i.c b/arch/arm/cpu/armv7/sunxi/dram_sun6i.c deleted file mode 100644 index 5dbbf6186f..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_sun6i.c +++ /dev/null @@ -1,411 +0,0 @@ -/* - * Sun6i platform dram controller init. - * - * (C) Copyright 2007-2012 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Berg Xing <bergxing@allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <common.h> -#include <errno.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/dram.h> -#include <asm/arch/prcm.h> - -#define DRAM_CLK (CONFIG_DRAM_CLK * 1000000) - -struct dram_sun6i_para { - u8 bus_width; - u8 chan; - u8 rank; - u8 rows; - u16 page_size; -}; - -static void mctl_sys_init(void) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - const int dram_clk_div = 2; - - clock_set_pll5(DRAM_CLK * dram_clk_div, false); - - clrsetbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_DIV0_MASK, - CCM_DRAMCLK_CFG_DIV0(dram_clk_div) | CCM_DRAMCLK_CFG_RST | - CCM_DRAMCLK_CFG_UPD); - mctl_await_completion(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_UPD, 0); - - writel(MDFS_CLK_DEFAULT, &ccm->mdfs_clk_cfg); - - /* deassert mctl reset */ - setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); - - /* enable mctl clock */ - setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); -} - -static void mctl_dll_init(int ch_index, struct dram_sun6i_para *para) -{ - struct sunxi_mctl_phy_reg *mctl_phy; - - if (ch_index == 0) - mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY0_BASE; - else - mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY1_BASE; - - /* disable + reset dlls */ - writel(MCTL_DLLCR_DISABLE, &mctl_phy->acdllcr); - writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx0dllcr); - writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx1dllcr); - if (para->bus_width == 32) { - writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx2dllcr); - writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx3dllcr); - } - udelay(2); - - /* enable + reset dlls */ - writel(0, &mctl_phy->acdllcr); - writel(0, &mctl_phy->dx0dllcr); - writel(0, &mctl_phy->dx1dllcr); - if (para->bus_width == 32) { - writel(0, &mctl_phy->dx2dllcr); - writel(0, &mctl_phy->dx3dllcr); - } - udelay(22); - - /* enable and release reset of dlls */ - writel(MCTL_DLLCR_NRESET, &mctl_phy->acdllcr); - writel(MCTL_DLLCR_NRESET, &mctl_phy->dx0dllcr); - writel(MCTL_DLLCR_NRESET, &mctl_phy->dx1dllcr); - if (para->bus_width == 32) { - writel(MCTL_DLLCR_NRESET, &mctl_phy->dx2dllcr); - writel(MCTL_DLLCR_NRESET, &mctl_phy->dx3dllcr); - } - udelay(22); -} - -static bool mctl_rank_detect(u32 *gsr0, int rank) -{ - const u32 done = MCTL_DX_GSR0_RANK0_TRAIN_DONE << rank; - const u32 err = MCTL_DX_GSR0_RANK0_TRAIN_ERR << rank; - - mctl_await_completion(gsr0, done, done); - mctl_await_completion(gsr0 + 0x10, done, done); - - return !(readl(gsr0) & err) && !(readl(gsr0 + 0x10) & err); -} - -static void mctl_channel_init(int ch_index, struct dram_sun6i_para *para) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_mctl_ctl_reg *mctl_ctl; - struct sunxi_mctl_phy_reg *mctl_phy; - - if (ch_index == 0) { - mctl_ctl = (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY0_BASE; - } else { - mctl_ctl = (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL1_BASE; - mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY1_BASE; - } - - writel(MCTL_MCMD_NOP, &mctl_ctl->mcmd); - mctl_await_completion(&mctl_ctl->mcmd, MCTL_MCMD_BUSY, 0); - - /* PHY initialization */ - writel(MCTL_PGCR, &mctl_phy->pgcr); - writel(MCTL_MR0, &mctl_phy->mr0); - writel(MCTL_MR1, &mctl_phy->mr1); - writel(MCTL_MR2, &mctl_phy->mr2); - writel(MCTL_MR3, &mctl_phy->mr3); - - writel((MCTL_TITMSRST << 18) | (MCTL_TDLLLOCK << 6) | MCTL_TDLLSRST, - &mctl_phy->ptr0); - - writel((MCTL_TDINIT1 << 19) | MCTL_TDINIT0, &mctl_phy->ptr1); - writel((MCTL_TDINIT3 << 17) | MCTL_TDINIT2, &mctl_phy->ptr2); - - writel((MCTL_TCCD << 31) | (MCTL_TRC << 25) | (MCTL_TRRD << 21) | - (MCTL_TRAS << 16) | (MCTL_TRCD << 12) | (MCTL_TRP << 8) | - (MCTL_TWTR << 5) | (MCTL_TRTP << 2) | (MCTL_TMRD << 0), - &mctl_phy->dtpr0); - - writel((MCTL_TDQSCKMAX << 27) | (MCTL_TDQSCK << 24) | - (MCTL_TRFC << 16) | (MCTL_TRTODT << 11) | - ((MCTL_TMOD - 12) << 9) | (MCTL_TFAW << 3) | (0 << 2) | - (MCTL_TAOND << 0), &mctl_phy->dtpr1); - - writel((MCTL_TDLLK << 19) | (MCTL_TCKE << 15) | (MCTL_TXPDLL << 10) | - (MCTL_TEXSR << 0), &mctl_phy->dtpr2); - - writel(1, &mctl_ctl->dfitphyupdtype0); - writel(MCTL_DCR_DDR3, &mctl_phy->dcr); - writel(MCTL_DSGCR, &mctl_phy->dsgcr); - writel(MCTL_DXCCR, &mctl_phy->dxccr); - writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx0gcr); - writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx1gcr); - writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx2gcr); - writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx3gcr); - - mctl_await_completion(&mctl_phy->pgsr, 0x03, 0x03); - - writel(CONFIG_DRAM_ZQ, &mctl_phy->zq0cr1); - - setbits_le32(&mctl_phy->pir, MCTL_PIR_CLEAR_STATUS); - writel(MCTL_PIR_STEP1, &mctl_phy->pir); - udelay(10); - mctl_await_completion(&mctl_phy->pgsr, 0x1f, 0x1f); - - /* rank detect */ - if (!mctl_rank_detect(&mctl_phy->dx0gsr0, 1)) { - para->rank = 1; - clrbits_le32(&mctl_phy->pgcr, MCTL_PGCR_RANK); - } - - /* - * channel detect, check channel 1 dx0 and dx1 have rank 0, if not - * assume nothing is connected to channel 1. - */ - if (ch_index == 1 && !mctl_rank_detect(&mctl_phy->dx0gsr0, 0)) { - para->chan = 1; - clrbits_le32(&mctl_com->ccr, MCTL_CCR_CH1_CLK_EN); - return; - } - - /* bus width detect, if dx2 and dx3 don't have rank 0, assume 16 bit */ - if (!mctl_rank_detect(&mctl_phy->dx2gsr0, 0)) { - para->bus_width = 16; - para->page_size = 2048; - setbits_le32(&mctl_phy->dx2dllcr, MCTL_DLLCR_DISABLE); - setbits_le32(&mctl_phy->dx3dllcr, MCTL_DLLCR_DISABLE); - clrbits_le32(&mctl_phy->dx2gcr, MCTL_DX_GCR_EN); - clrbits_le32(&mctl_phy->dx3gcr, MCTL_DX_GCR_EN); - } - - setbits_le32(&mctl_phy->pir, MCTL_PIR_CLEAR_STATUS); - writel(MCTL_PIR_STEP2, &mctl_phy->pir); - udelay(10); - mctl_await_completion(&mctl_phy->pgsr, 0x11, 0x11); - - if (readl(&mctl_phy->pgsr) & MCTL_PGSR_TRAIN_ERR_MASK) - panic("Training error initialising DRAM\n"); - - /* Move to configure state */ - writel(MCTL_SCTL_CONFIG, &mctl_ctl->sctl); - mctl_await_completion(&mctl_ctl->sstat, 0x07, 0x01); - - /* Set number of clks per micro-second */ - writel(DRAM_CLK / 1000000, &mctl_ctl->togcnt1u); - /* Set number of clks per 100 nano-seconds */ - writel(DRAM_CLK / 10000000, &mctl_ctl->togcnt100n); - /* Set memory timing registers */ - writel(MCTL_TREFI, &mctl_ctl->trefi); - writel(MCTL_TMRD, &mctl_ctl->tmrd); - writel(MCTL_TRFC, &mctl_ctl->trfc); - writel((MCTL_TPREA << 16) | MCTL_TRP, &mctl_ctl->trp); - writel(MCTL_TRTW, &mctl_ctl->trtw); - writel(MCTL_TAL, &mctl_ctl->tal); - writel(MCTL_TCL, &mctl_ctl->tcl); - writel(MCTL_TCWL, &mctl_ctl->tcwl); - writel(MCTL_TRAS, &mctl_ctl->tras); - writel(MCTL_TRC, &mctl_ctl->trc); - writel(MCTL_TRCD, &mctl_ctl->trcd); - writel(MCTL_TRRD, &mctl_ctl->trrd); - writel(MCTL_TRTP, &mctl_ctl->trtp); - writel(MCTL_TWR, &mctl_ctl->twr); - writel(MCTL_TWTR, &mctl_ctl->twtr); - writel(MCTL_TEXSR, &mctl_ctl->texsr); - writel(MCTL_TXP, &mctl_ctl->txp); - writel(MCTL_TXPDLL, &mctl_ctl->txpdll); - writel(MCTL_TZQCS, &mctl_ctl->tzqcs); - writel(MCTL_TZQCSI, &mctl_ctl->tzqcsi); - writel(MCTL_TDQS, &mctl_ctl->tdqs); - writel(MCTL_TCKSRE, &mctl_ctl->tcksre); - writel(MCTL_TCKSRX, &mctl_ctl->tcksrx); - writel(MCTL_TCKE, &mctl_ctl->tcke); - writel(MCTL_TMOD, &mctl_ctl->tmod); - writel(MCTL_TRSTL, &mctl_ctl->trstl); - writel(MCTL_TZQCL, &mctl_ctl->tzqcl); - writel(MCTL_TMRR, &mctl_ctl->tmrr); - writel(MCTL_TCKESR, &mctl_ctl->tckesr); - writel(MCTL_TDPD, &mctl_ctl->tdpd); - - /* Unknown magic performed by boot0 */ - setbits_le32(&mctl_ctl->dfiodtcfg, 1 << 3); - clrbits_le32(&mctl_ctl->dfiodtcfg1, 0x1f); - - /* Select 16/32-bits mode for MCTL */ - if (para->bus_width == 16) - setbits_le32(&mctl_ctl->ppcfg, 1); - - /* Set DFI timing registers */ - writel(MCTL_TCWL, &mctl_ctl->dfitphywrl); - writel(MCTL_TCL - 1, &mctl_ctl->dfitrdden); - writel(MCTL_DFITPHYRDL, &mctl_ctl->dfitphyrdl); - writel(MCTL_DFISTCFG0, &mctl_ctl->dfistcfg0); - - writel(MCTL_MCFG_DDR3, &mctl_ctl->mcfg); - - /* DFI update configuration register */ - writel(MCTL_DFIUPDCFG_UPD, &mctl_ctl->dfiupdcfg); - - /* Move to access state */ - writel(MCTL_SCTL_ACCESS, &mctl_ctl->sctl); - mctl_await_completion(&mctl_ctl->sstat, 0x07, 0x03); -} - -static void mctl_com_init(struct dram_sun6i_para *para) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_mctl_phy_reg * const mctl_phy1 = - (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY1_BASE; - struct sunxi_prcm_reg * const prcm = - (struct sunxi_prcm_reg *)SUNXI_PRCM_BASE; - - writel(MCTL_CR_UNKNOWN | MCTL_CR_CHANNEL(para->chan) | MCTL_CR_DDR3 | - ((para->bus_width == 32) ? MCTL_CR_BUSW32 : MCTL_CR_BUSW16) | - MCTL_CR_PAGE_SIZE(para->page_size) | MCTL_CR_ROW(para->rows) | - MCTL_CR_BANK(1) | MCTL_CR_RANK(para->rank), &mctl_com->cr); - - /* Unknown magic performed by boot0 */ - setbits_le32(&mctl_com->dbgcr, (1 << 6)); - - if (para->chan == 1) { - /* Shutdown channel 1 */ - setbits_le32(&mctl_phy1->aciocr, MCTL_ACIOCR_DISABLE); - setbits_le32(&mctl_phy1->dxccr, MCTL_DXCCR_DISABLE); - clrbits_le32(&mctl_phy1->dsgcr, MCTL_DSGCR_ENABLE); - /* - * CH0 ?? this is what boot0 does. Leave as is until we can - * confirm this. - */ - setbits_le32(&prcm->vdd_sys_pwroff, - PRCM_VDD_SYS_DRAM_CH0_PAD_HOLD_PWROFF); - } -} - -static void mctl_port_cfg(void) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* enable DRAM AXI clock for CPU access */ - setbits_le32(&ccm->axi_gate, 1 << AXI_GATE_OFFSET_DRAM); - - /* Bunch of magic writes performed by boot0 */ - writel(0x00400302, &mctl_com->rmcr[0]); - writel(0x01000307, &mctl_com->rmcr[1]); - writel(0x00400302, &mctl_com->rmcr[2]); - writel(0x01000307, &mctl_com->rmcr[3]); - writel(0x01000307, &mctl_com->rmcr[4]); - writel(0x01000303, &mctl_com->rmcr[6]); - writel(0x01000303, &mctl_com->mmcr[0]); - writel(0x00400310, &mctl_com->mmcr[1]); - writel(0x01000307, &mctl_com->mmcr[2]); - writel(0x01000303, &mctl_com->mmcr[3]); - writel(0x01800303, &mctl_com->mmcr[4]); - writel(0x01800303, &mctl_com->mmcr[5]); - writel(0x01800303, &mctl_com->mmcr[6]); - writel(0x01800303, &mctl_com->mmcr[7]); - writel(0x01000303, &mctl_com->mmcr[8]); - writel(0x00000002, &mctl_com->mmcr[15]); - writel(0x00000310, &mctl_com->mbagcr[0]); - writel(0x00400310, &mctl_com->mbagcr[1]); - writel(0x00400310, &mctl_com->mbagcr[2]); - writel(0x00000307, &mctl_com->mbagcr[3]); - writel(0x00000317, &mctl_com->mbagcr[4]); - writel(0x00000307, &mctl_com->mbagcr[5]); -} - -unsigned long sunxi_dram_init(void) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - u32 offset; - int bank, bus, columns; - - /* Set initial parameters, these get modified by the autodetect code */ - struct dram_sun6i_para para = { - .bus_width = 32, - .chan = 2, - .rank = 2, - .page_size = 4096, - .rows = 16, - }; - - /* A31s only has one channel */ - if (sunxi_get_ss_bonding_id() == SUNXI_SS_BOND_ID_A31S) - para.chan = 1; - - mctl_sys_init(); - - mctl_dll_init(0, ¶); - setbits_le32(&mctl_com->ccr, MCTL_CCR_CH0_CLK_EN); - - if (para.chan == 2) { - mctl_dll_init(1, ¶); - setbits_le32(&mctl_com->ccr, MCTL_CCR_CH1_CLK_EN); - } - - setbits_le32(&mctl_com->ccr, MCTL_CCR_MASTER_CLK_EN); - - mctl_channel_init(0, ¶); - if (para.chan == 2) - mctl_channel_init(1, ¶); - - mctl_com_init(¶); - mctl_port_cfg(); - - /* - * Change to 1 ch / sequence / 8192 byte pages / 16 rows / - * 8 bit banks / 1 rank mode. - */ - clrsetbits_le32(&mctl_com->cr, - MCTL_CR_CHANNEL_MASK | MCTL_CR_PAGE_SIZE_MASK | - MCTL_CR_ROW_MASK | MCTL_CR_BANK_MASK | MCTL_CR_RANK_MASK, - MCTL_CR_CHANNEL(1) | MCTL_CR_SEQUENCE | - MCTL_CR_PAGE_SIZE(8192) | MCTL_CR_ROW(16) | - MCTL_CR_BANK(1) | MCTL_CR_RANK(1)); - - /* Detect and set page size */ - for (columns = 7; columns < 20; columns++) { - if (mctl_mem_matches(1 << columns)) - break; - } - bus = (para.bus_width == 32) ? 2 : 1; - columns -= bus; - para.page_size = (1 << columns) * (bus << 1); - clrsetbits_le32(&mctl_com->cr, MCTL_CR_PAGE_SIZE_MASK, - MCTL_CR_PAGE_SIZE(para.page_size)); - - /* Detect and set rows */ - for (para.rows = 11; para.rows < 16; para.rows++) { - offset = 1 << (para.rows + columns + bus); - if (mctl_mem_matches(offset)) - break; - } - clrsetbits_le32(&mctl_com->cr, MCTL_CR_ROW_MASK, - MCTL_CR_ROW(para.rows)); - - /* Detect bank size */ - offset = 1 << (para.rows + columns + bus + 2); - bank = mctl_mem_matches(offset) ? 0 : 1; - - /* Restore interleave, chan and rank values, set bank size */ - clrsetbits_le32(&mctl_com->cr, - MCTL_CR_CHANNEL_MASK | MCTL_CR_SEQUENCE | - MCTL_CR_BANK_MASK | MCTL_CR_RANK_MASK, - MCTL_CR_CHANNEL(para.chan) | MCTL_CR_BANK(bank) | - MCTL_CR_RANK(para.rank)); - - return 1 << (para.rank + para.rows + bank + columns + para.chan + bus); -} diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a23.c b/arch/arm/cpu/armv7/sunxi/dram_sun8i_a23.c deleted file mode 100644 index c53671a0e9..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a23.c +++ /dev/null @@ -1,343 +0,0 @@ -/* - * Sun8i platform dram controller init. - * - * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * Note this code uses a lot of magic hex values, that is because this code - * simply replays the init sequence as done by the Allwinner boot0 code, so - * we do not know what these values mean. There are no symbolic constants for - * these magic values, since we do not know how to name them and making up - * names for them is not useful. - * - * The register-layout of the sunxi_mctl_phy_reg-s looks a lot like the one - * found in the TI Keystone2 documentation: - * http://www.ti.com/lit/ug/spruhn7a/spruhn7a.pdf - * "Table4-2 DDR3 PHY Registers" - * This may be used as a (possible) reference for future work / cleanups. - */ - -#include <common.h> -#include <errno.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/dram.h> -#include <asm/arch/prcm.h> - -static const struct dram_para dram_para = { - .clock = CONFIG_DRAM_CLK, - .type = 3, - .zq = CONFIG_DRAM_ZQ, - .odt_en = IS_ENABLED(CONFIG_DRAM_ODT_EN), - .odt_correction = CONFIG_DRAM_ODT_CORRECTION, - .para1 = 0, /* not used (only used when tpr13 bit 31 is set */ - .para2 = 0, /* not used (only used when tpr13 bit 31 is set */ - .mr0 = 6736, - .mr1 = 4, - .mr2 = 16, - .mr3 = 0, - /* tpr0 - 10 contain timing constants or-ed together in u32 vals */ - .tpr0 = 0x2ab83def, - .tpr1 = 0x18082356, - .tpr2 = 0x00034156, - .tpr3 = 0x448c5533, - .tpr4 = 0x08010d00, - .tpr5 = 0x0340b20f, - .tpr6 = 0x20d118cc, - .tpr7 = 0x14062485, - .tpr8 = 0x220d1d52, - .tpr9 = 0x1e078c22, - .tpr10 = 0x3c, - .tpr11 = 0, /* not used */ - .tpr12 = 0, /* not used */ - .tpr13 = 0x30000, -}; - -static void mctl_sys_init(void) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - /* enable pll5, note the divide by 2 is deliberate! */ - clock_set_pll5(dram_para.clock * 1000000 / 2, - dram_para.tpr13 & 0x40000); - - /* deassert ahb mctl reset */ - setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); - - /* enable ahb mctl clock */ - setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); -} - -static void mctl_apply_odt_correction(u32 *reg, int correction) -{ - int val; - - val = (readl(reg) >> 8) & 0xff; - val += correction; - - /* clamp */ - if (val < 0) - val = 0; - else if (val > 255) - val = 255; - - clrsetbits_le32(reg, 0xff00, val << 8); -} - -static void mctl_init(u32 *bus_width) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - struct sunxi_mctl_phy_reg * const mctl_phy = - (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY0_BASE; - - if (dram_para.tpr13 & 0x20) - writel(0x40b, &mctl_phy->dcr); - else - writel(0x1000040b, &mctl_phy->dcr); - - if (dram_para.clock >= 480) - writel(0x5c000, &mctl_phy->dllgcr); - else - writel(0xdc000, &mctl_phy->dllgcr); - - writel(0x0a003e3f, &mctl_phy->pgcr0); - writel(0x03008421, &mctl_phy->pgcr1); - - writel(dram_para.mr0, &mctl_phy->mr0); - writel(dram_para.mr1, &mctl_phy->mr1); - writel(dram_para.mr2, &mctl_phy->mr2); - writel(dram_para.mr3, &mctl_phy->mr3); - - if (!(dram_para.tpr13 & 0x10000)) { - clrsetbits_le32(&mctl_phy->dx0gcr, 0x3800, 0x2000); - clrsetbits_le32(&mctl_phy->dx1gcr, 0x3800, 0x2000); - } - - /* - * All the masking and shifting below converts what I assume are DDR - * timing constants from Allwinner dram_para tpr format to the actual - * timing registers format. - */ - - writel((dram_para.tpr0 & 0x000fffff), &mctl_phy->ptr2); - writel((dram_para.tpr1 & 0x1fffffff), &mctl_phy->ptr3); - writel((dram_para.tpr0 & 0x3ff00000) >> 2 | - (dram_para.tpr2 & 0x0003ffff), &mctl_phy->ptr4); - - writel(dram_para.tpr3, &mctl_phy->dtpr0); - writel(dram_para.tpr4, &mctl_phy->dtpr2); - - writel(0x01000081, &mctl_phy->dtcr); - - if (dram_para.clock <= 240 || !dram_para.odt_en) { - clrbits_le32(&mctl_phy->dx0gcr, 0x600); - clrbits_le32(&mctl_phy->dx1gcr, 0x600); - } - if (dram_para.clock <= 240) { - writel(0, &mctl_phy->odtcr); - writel(0, &mctl_ctl->odtmap); - } - - writel(((dram_para.tpr5 & 0x0f00) << 12) | - ((dram_para.tpr5 & 0x00f8) << 9) | - ((dram_para.tpr5 & 0x0007) << 8), - &mctl_ctl->rfshctl0); - - writel(((dram_para.tpr5 & 0x0003f000) << 12) | - ((dram_para.tpr5 & 0x00fc0000) >> 2) | - ((dram_para.tpr5 & 0x3f000000) >> 16) | - ((dram_para.tpr6 & 0x0000003f) >> 0), - &mctl_ctl->dramtmg0); - - writel(((dram_para.tpr6 & 0x000007c0) << 10) | - ((dram_para.tpr6 & 0x0000f800) >> 3) | - ((dram_para.tpr6 & 0x003f0000) >> 16), - &mctl_ctl->dramtmg1); - - writel(((dram_para.tpr6 & 0x0fc00000) << 2) | - ((dram_para.tpr7 & 0x0000001f) << 16) | - ((dram_para.tpr7 & 0x000003e0) << 3) | - ((dram_para.tpr7 & 0x0000fc00) >> 10), - &mctl_ctl->dramtmg2); - - writel(((dram_para.tpr7 & 0x03ff0000) >> 16) | - ((dram_para.tpr6 & 0xf0000000) >> 16), - &mctl_ctl->dramtmg3); - - writel(((dram_para.tpr7 & 0x3c000000) >> 2 ) | - ((dram_para.tpr8 & 0x00000007) << 16) | - ((dram_para.tpr8 & 0x00000038) << 5) | - ((dram_para.tpr8 & 0x000003c0) >> 6), - &mctl_ctl->dramtmg4); - - writel(((dram_para.tpr8 & 0x00003c00) << 14) | - ((dram_para.tpr8 & 0x0003c000) << 2) | - ((dram_para.tpr8 & 0x00fc0000) >> 10) | - ((dram_para.tpr8 & 0x0f000000) >> 24), - &mctl_ctl->dramtmg5); - - writel(0x00000008, &mctl_ctl->dramtmg8); - - writel(((dram_para.tpr8 & 0xf0000000) >> 4) | - ((dram_para.tpr9 & 0x00007c00) << 6) | - ((dram_para.tpr9 & 0x000003e0) << 3) | - ((dram_para.tpr9 & 0x0000001f) >> 0), - &mctl_ctl->pitmg0); - - setbits_le32(&mctl_ctl->pitmg1, 0x80000); - - writel(((dram_para.tpr9 & 0x003f8000) << 9) | 0x2001, - &mctl_ctl->sched); - - writel((dram_para.mr0 << 16) | dram_para.mr1, &mctl_ctl->init3); - writel((dram_para.mr2 << 16) | dram_para.mr3, &mctl_ctl->init4); - - writel(0x00000000, &mctl_ctl->pimisc); - writel(0x80000000, &mctl_ctl->upd0); - - writel(((dram_para.tpr9 & 0xffc00000) >> 22) | - ((dram_para.tpr10 & 0x00000fff) << 16), - &mctl_ctl->rfshtmg); - - if (dram_para.tpr13 & 0x20) - writel(0x01040001, &mctl_ctl->mstr); - else - writel(0x01040401, &mctl_ctl->mstr); - - if (!(dram_para.tpr13 & 0x20000)) { - writel(0x00000002, &mctl_ctl->pwrctl); - writel(0x00008001, &mctl_ctl->pwrtmg); - } - - writel(0x00000001, &mctl_ctl->rfshctl3); - writel(0x00000001, &mctl_ctl->pimisc); - - /* deassert dram_clk_cfg reset */ - setbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_RST); - - setbits_le32(&mctl_com->ccr, 0x80000); - - /* zq stuff */ - writel((dram_para.zq >> 8) & 0xff, &mctl_phy->zqcr1); - - writel(0x00000003, &mctl_phy->pir); - udelay(10); - mctl_await_completion(&mctl_phy->pgsr0, 0x09, 0x09); - - writel(readl(&mctl_phy->zqsr0) | 0x10000000, &mctl_phy->zqcr2); - writel(dram_para.zq & 0xff, &mctl_phy->zqcr1); - - /* A23-v1.0 SDK uses 0xfdf3, A23-v2.0 SDK uses 0x5f3 */ - writel(0x000005f3, &mctl_phy->pir); - udelay(10); - mctl_await_completion(&mctl_phy->pgsr0, 0x03, 0x03); - - if (readl(&mctl_phy->dx1gsr0) & 0x1000000) { - *bus_width = 8; - writel(0, &mctl_phy->dx1gcr); - writel(dram_para.zq & 0xff, &mctl_phy->zqcr1); - writel(0x5f3, &mctl_phy->pir); - udelay(10000); - setbits_le32(&mctl_ctl->mstr, 0x1000); - } else - *bus_width = 16; - - if (dram_para.odt_correction) { - mctl_apply_odt_correction(&mctl_phy->dx0lcdlr1, - dram_para.odt_correction); - mctl_apply_odt_correction(&mctl_phy->dx1lcdlr1, - dram_para.odt_correction); - } - - mctl_await_completion(&mctl_ctl->statr, 0x01, 0x01); - - writel(0x08003e3f, &mctl_phy->pgcr0); - writel(0x00000000, &mctl_ctl->rfshctl3); -} - -unsigned long sunxi_dram_init(void) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - const u32 columns = 13; - u32 bus, bus_width, offset, page_size, rows; - - mctl_sys_init(); - mctl_init(&bus_width); - - if (bus_width == 16) { - page_size = 8; - bus = 1; - } else { - page_size = 7; - bus = 0; - } - - if (!(dram_para.tpr13 & 0x80000000)) { - /* Detect and set rows */ - writel(0x000310f4 | MCTL_CR_PAGE_SIZE(page_size), - &mctl_com->cr); - setbits_le32(&mctl_com->swonr, 0x0003ffff); - for (rows = 11; rows < 16; rows++) { - offset = 1 << (rows + columns + bus); - if (mctl_mem_matches(offset)) - break; - } - clrsetbits_le32(&mctl_com->cr, MCTL_CR_ROW_MASK, - MCTL_CR_ROW(rows)); - } else { - rows = (dram_para.para1 >> 16) & 0xff; - writel(((dram_para.para2 & 0x000000f0) << 11) | - ((rows - 1) << 4) | - ((dram_para.para1 & 0x0f000000) >> 22) | - 0x31000 | MCTL_CR_PAGE_SIZE(page_size), - &mctl_com->cr); - setbits_le32(&mctl_com->swonr, 0x0003ffff); - } - - /* Setup DRAM master priority? If this is left out things still work */ - writel(0x00000008, &mctl_com->mcr0_0); - writel(0x0001000d, &mctl_com->mcr1_0); - writel(0x00000004, &mctl_com->mcr0_1); - writel(0x00000080, &mctl_com->mcr1_1); - writel(0x00000004, &mctl_com->mcr0_2); - writel(0x00000019, &mctl_com->mcr1_2); - writel(0x00000004, &mctl_com->mcr0_3); - writel(0x00000080, &mctl_com->mcr1_3); - writel(0x00000004, &mctl_com->mcr0_4); - writel(0x01010040, &mctl_com->mcr1_4); - writel(0x00000004, &mctl_com->mcr0_5); - writel(0x0001002f, &mctl_com->mcr1_5); - writel(0x00000004, &mctl_com->mcr0_6); - writel(0x00010020, &mctl_com->mcr1_6); - writel(0x00000004, &mctl_com->mcr0_7); - writel(0x00010020, &mctl_com->mcr1_7); - writel(0x00000008, &mctl_com->mcr0_8); - writel(0x00000001, &mctl_com->mcr1_8); - writel(0x00000008, &mctl_com->mcr0_9); - writel(0x00000005, &mctl_com->mcr1_9); - writel(0x00000008, &mctl_com->mcr0_10); - writel(0x00000003, &mctl_com->mcr1_10); - writel(0x00000008, &mctl_com->mcr0_11); - writel(0x00000005, &mctl_com->mcr1_11); - writel(0x00000008, &mctl_com->mcr0_12); - writel(0x00000003, &mctl_com->mcr1_12); - writel(0x00000008, &mctl_com->mcr0_13); - writel(0x00000004, &mctl_com->mcr1_13); - writel(0x00000008, &mctl_com->mcr0_14); - writel(0x00000002, &mctl_com->mcr1_14); - writel(0x00000008, &mctl_com->mcr0_15); - writel(0x00000003, &mctl_com->mcr1_15); - writel(0x00010138, &mctl_com->bwcr); - - return 1 << (rows + columns + bus); -} diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a33.c b/arch/arm/cpu/armv7/sunxi/dram_sun8i_a33.c deleted file mode 100644 index fa1620cb39..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a33.c +++ /dev/null @@ -1,362 +0,0 @@ -/* - * Sun8i a33 platform dram controller init. - * - * (C) Copyright 2007-2015 Allwinner Technology Co. - * Jerry Wang <wangflord@allwinnertech.com> - * (C) Copyright 2015 Vishnu Patekar <vishnupatekar0510@gmail.com> - * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <common.h> -#include <errno.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/dram.h> -#include <asm/arch/prcm.h> - -/* PLL runs at 2x dram-clk, controller runs at PLL / 4 (dram-clk / 2) */ -#define DRAM_CLK_MUL 2 -#define DRAM_CLK_DIV 4 -#define DRAM_SIGMA_DELTA_ENABLE 1 - -struct dram_para { - u8 cs1; - u8 seq; - u8 bank; - u8 rank; - u8 rows; - u8 bus_width; - u16 page_size; -}; - -static void mctl_set_cr(struct dram_para *para) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - - writel(MCTL_CR_CS1_CONTROL(para->cs1) | MCTL_CR_UNKNOWN | - MCTL_CR_CHANNEL(1) | MCTL_CR_DDR3 | - (para->seq ? MCTL_CR_SEQUENCE : 0) | - ((para->bus_width == 16) ? MCTL_CR_BUSW16 : MCTL_CR_BUSW8) | - MCTL_CR_PAGE_SIZE(para->page_size) | MCTL_CR_ROW(para->rows) | - MCTL_CR_BANK(para->bank) | MCTL_CR_RANK(para->rank), - &mctl_com->cr); -} - -static void auto_detect_dram_size(struct dram_para *para) -{ - u8 orig_rank = para->rank; - int rows, columns; - - /* Row detect */ - para->page_size = 512; - para->seq = 1; - para->rows = 16; - para->rank = 1; - mctl_set_cr(para); - for (rows = 11 ; rows < 16 ; rows++) { - if (mctl_mem_matches(1 << (rows + 9))) /* row-column */ - break; - } - - /* Column (page size) detect */ - para->rows = 11; - para->page_size = 8192; - mctl_set_cr(para); - for (columns = 9 ; columns < 13 ; columns++) { - if (mctl_mem_matches(1 << columns)) - break; - } - - para->seq = 0; - para->rank = orig_rank; - para->rows = rows; - para->page_size = 1 << columns; - mctl_set_cr(para); -} - -static inline int ns_to_t(int nanoseconds) -{ - const unsigned int ctrl_freq = - CONFIG_DRAM_CLK * DRAM_CLK_MUL / DRAM_CLK_DIV; - - return (ctrl_freq * nanoseconds + 999) / 1000; -} - -static void auto_set_timing_para(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - u32 reg_val; - - u8 tccd = 2; - u8 tfaw = ns_to_t(50); - u8 trrd = max(ns_to_t(10), 4); - u8 trcd = ns_to_t(15); - u8 trc = ns_to_t(53); - u8 txp = max(ns_to_t(8), 3); - u8 twtr = max(ns_to_t(8), 4); - u8 trtp = max(ns_to_t(8), 4); - u8 twr = max(ns_to_t(15), 3); - u8 trp = ns_to_t(15); - u8 tras = ns_to_t(38); - - u16 trefi = ns_to_t(7800) / 32; - u16 trfc = ns_to_t(350); - - /* Fixed timing parameters */ - u8 tmrw = 0; - u8 tmrd = 4; - u8 tmod = 12; - u8 tcke = 3; - u8 tcksrx = 5; - u8 tcksre = 5; - u8 tckesr = 4; - u8 trasmax = 24; - u8 tcl = 6; /* CL 12 */ - u8 tcwl = 4; /* CWL 8 */ - u8 t_rdata_en = 4; - u8 wr_latency = 2; - - u32 tdinit0 = (500 * CONFIG_DRAM_CLK) + 1; /* 500us */ - u32 tdinit1 = (360 * CONFIG_DRAM_CLK) / 1000 + 1; /* 360ns */ - u32 tdinit2 = (200 * CONFIG_DRAM_CLK) + 1; /* 200us */ - u32 tdinit3 = (1 * CONFIG_DRAM_CLK) + 1; /* 1us */ - - u8 twtp = tcwl + 2 + twr; /* WL + BL / 2 + tWR */ - u8 twr2rd = tcwl + 2 + twtr; /* WL + BL / 2 + tWTR */ - u8 trd2wr = tcl + 2 + 1 - tcwl; /* RL + BL / 2 + 2 - WL */ - - /* Set work mode register */ - mctl_set_cr(para); - /* Set mode register */ - writel(MCTL_MR0, &mctl_ctl->mr0); - writel(MCTL_MR1, &mctl_ctl->mr1); - writel(MCTL_MR2, &mctl_ctl->mr2); - writel(MCTL_MR3, &mctl_ctl->mr3); - /* Set dram timing */ - reg_val = (twtp << 24) | (tfaw << 16) | (trasmax << 8) | (tras << 0); - writel(reg_val, &mctl_ctl->dramtmg0); - reg_val = (txp << 16) | (trtp << 8) | (trc << 0); - writel(reg_val, &mctl_ctl->dramtmg1); - reg_val = (tcwl << 24) | (tcl << 16) | (trd2wr << 8) | (twr2rd << 0); - writel(reg_val, &mctl_ctl->dramtmg2); - reg_val = (tmrw << 16) | (tmrd << 12) | (tmod << 0); - writel(reg_val, &mctl_ctl->dramtmg3); - reg_val = (trcd << 24) | (tccd << 16) | (trrd << 8) | (trp << 0); - writel(reg_val, &mctl_ctl->dramtmg4); - reg_val = (tcksrx << 24) | (tcksre << 16) | (tckesr << 8) | (tcke << 0); - writel(reg_val, &mctl_ctl->dramtmg5); - /* Set two rank timing and exit self-refresh timing */ - reg_val = readl(&mctl_ctl->dramtmg8); - reg_val &= ~(0xff << 8); - reg_val &= ~(0xff << 0); - reg_val |= (0x33 << 8); - reg_val |= (0x8 << 0); - writel(reg_val, &mctl_ctl->dramtmg8); - /* Set phy interface time */ - reg_val = (0x2 << 24) | (t_rdata_en << 16) | (0x1 << 8) - | (wr_latency << 0); - /* PHY interface write latency and read latency configure */ - writel(reg_val, &mctl_ctl->pitmg0); - /* Set phy time PTR0-2 use default */ - writel(((tdinit0 << 0) | (tdinit1 << 20)), &mctl_ctl->ptr3); - writel(((tdinit2 << 0) | (tdinit3 << 20)), &mctl_ctl->ptr4); - /* Set refresh timing */ - reg_val = (trefi << 16) | (trfc << 0); - writel(reg_val, &mctl_ctl->rfshtmg); -} - -static void mctl_set_pir(u32 val) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - writel(val, &mctl_ctl->pir); - mctl_await_completion(&mctl_ctl->pgsr0, 0x1, 0x1); -} - -static void mctl_data_train_cfg(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - if (para->rank == 2) - clrsetbits_le32(&mctl_ctl->dtcr, 0x3 << 24, 0x3 << 24); - else - clrsetbits_le32(&mctl_ctl->dtcr, 0x3 << 24, 0x1 << 24); -} - -static int mctl_train_dram(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - mctl_data_train_cfg(para); - mctl_set_pir(0x5f3); - - return ((readl(&mctl_ctl->pgsr0) >> 20) & 0xff) ? -EIO : 0; -} - -static int mctl_channel_init(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - u32 low_data_lines_status; /* Training status of datalines 0 - 7 */ - u32 high_data_lines_status; /* Training status of datalines 8 - 15 */ - - auto_set_timing_para(para); - - /* Disable dram VTC */ - clrbits_le32(&mctl_ctl->pgcr0, 0x3f << 0); - - /* Set ODT */ - if ((CONFIG_DRAM_CLK > 400) && IS_ENABLED(CONFIG_DRAM_ODT_EN)) { - setbits_le32(DXnGCR0(0), 0x3 << 9); - setbits_le32(DXnGCR0(1), 0x3 << 9); - } else { - clrbits_le32(DXnGCR0(0), 0x3 << 9); - clrbits_le32(DXnGCR0(1), 0x3 << 9); - } - - /* set PLL configuration */ - if (CONFIG_DRAM_CLK >= 480) - setbits_le32(&mctl_ctl->pllgcr, 0x1 << 18); - else - setbits_le32(&mctl_ctl->pllgcr, 0x3 << 18); - - /* Auto detect dram config, set 2 rank and 16bit bus-width */ - para->cs1 = 0; - para->rank = 2; - para->bus_width = 16; - mctl_set_cr(para); - - /* Open DQS gating */ - clrbits_le32(&mctl_ctl->pgcr2, (0x3 << 6)); - clrbits_le32(&mctl_ctl->dqsgmr, (0x1 << 8) | (0x7)); - - mctl_data_train_cfg(para); - - /* ZQ calibration */ - writel(CONFIG_DRAM_ZQ & 0xff, &mctl_ctl->zqcr1); - /* CA calibration */ - mctl_set_pir(0x00000003); - /* More ZQ calibration */ - writel(readl(&mctl_ctl->zqsr0) | 0x10000000, &mctl_ctl->zqcr2); - writel((CONFIG_DRAM_ZQ >> 8) & 0xff, &mctl_ctl->zqcr1); - - /* DQS gate training */ - if (mctl_train_dram(para) != 0) { - low_data_lines_status = (readl(DXnGSR0(0)) >> 24) & 0x03; - high_data_lines_status = (readl(DXnGSR0(1)) >> 24) & 0x03; - - if (low_data_lines_status == 0x3) - return -EIO; - - /* DRAM has only one rank */ - para->rank = 1; - mctl_set_cr(para); - - if (low_data_lines_status == high_data_lines_status) - goto done; /* 16 bit bus, 1 rank */ - - if (!(low_data_lines_status & high_data_lines_status)) { - /* Retry 16 bit bus-width with CS1 set */ - para->cs1 = 1; - mctl_set_cr(para); - if (mctl_train_dram(para) == 0) - goto done; - } - - /* Try 8 bit bus-width */ - writel(0x0, DXnGCR0(1)); /* Disable high DQ */ - para->cs1 = 0; - para->bus_width = 8; - mctl_set_cr(para); - if (mctl_train_dram(para) != 0) - return -EIO; - } -done: - /* Check the dramc status */ - mctl_await_completion(&mctl_ctl->statr, 0x1, 0x1); - - /* Close DQS gating */ - setbits_le32(&mctl_ctl->pgcr2, 0x3 << 6); - - /* Enable master access */ - writel(0xffffffff, &mctl_com->maer); - - return 0; -} - -static void mctl_sys_init(struct dram_para *para) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - - clrsetbits_le32(&ccm->dram_pll_cfg, CCM_DRAMPLL_CFG_SRC_MASK, - CCM_DRAMPLL_CFG_SRC_PLL11); - - clock_set_pll11(CONFIG_DRAM_CLK * 1000000 * DRAM_CLK_MUL, - DRAM_SIGMA_DELTA_ENABLE); - - clrsetbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_DIV_MASK, - CCM_DRAMCLK_CFG_DIV(DRAM_CLK_DIV) | - CCM_DRAMCLK_CFG_RST | CCM_DRAMCLK_CFG_UPD); - mctl_await_completion(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_UPD, 0); - - setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); - setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); - setbits_le32(&ccm->mbus_reset, CCM_MBUS_RESET_RESET); - setbits_le32(&ccm->mbus0_clk_cfg, MBUS_CLK_GATE); - - /* Set dram master access priority */ - writel(0x0, &mctl_com->mapr); - writel(0x0f802f01, &mctl_ctl->sched); - writel(0x0000400f, &mctl_ctl->clken); /* normal */ - - udelay(250); -} - -unsigned long sunxi_dram_init(void) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - struct dram_para para = { - .cs1 = 0, - .bank = 1, - .rank = 1, - .rows = 15, - .bus_width = 16, - .page_size = 2048, - }; - - mctl_sys_init(¶); - - if (mctl_channel_init(¶) != 0) - return 0; - - auto_detect_dram_size(¶); - - /* Enable master software clk */ - writel(readl(&mctl_com->swonr) | 0x3ffff, &mctl_com->swonr); - - /* Set DRAM ODT MAP */ - if (para.rank == 2) - writel(0x00000303, &mctl_ctl->odtmap); - else - writel(0x00000201, &mctl_ctl->odtmap); - - return para.page_size * (para.bus_width / 8) * - (1 << (para.bank + para.rank + para.rows)); -} diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c b/arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c deleted file mode 100644 index 55df1b9d54..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_sun8i_a83t.c +++ /dev/null @@ -1,472 +0,0 @@ -/* - * Sun8i a33 platform dram controller init. - * - * (C) Copyright 2007-2015 Allwinner Technology Co. - * Jerry Wang <wangflord@allwinnertech.com> - * (C) Copyright 2015 Vishnu Patekar <vishnupatekar0510@gmail.com> - * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <common.h> -#include <errno.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/dram.h> -#include <asm/arch/prcm.h> - -#define DRAM_CLK_MUL 2 -#define DRAM_CLK_DIV 1 - -struct dram_para { - u8 cs1; - u8 seq; - u8 bank; - u8 rank; - u8 rows; - u8 bus_width; - u8 dram_type; - u16 page_size; -}; - -static void mctl_set_cr(struct dram_para *para) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - - writel(MCTL_CR_CS1_CONTROL(para->cs1) | MCTL_CR_UNKNOWN | - MCTL_CR_CHANNEL(1) | MCTL_CR_DRAM_TYPE(para->dram_type) | - (para->seq ? MCTL_CR_SEQUENCE : 0) | - ((para->bus_width == 16) ? MCTL_CR_BUSW16 : MCTL_CR_BUSW8) | - MCTL_CR_PAGE_SIZE(para->page_size) | MCTL_CR_ROW(para->rows) | - MCTL_CR_BANK(para->bank) | MCTL_CR_RANK(para->rank), - &mctl_com->cr); -} - -static void auto_detect_dram_size(struct dram_para *para) -{ - u8 orig_rank = para->rank; - int rows, columns; - - /* Row detect */ - para->page_size = 512; - para->seq = 1; - para->rows = 16; - para->rank = 1; - mctl_set_cr(para); - for (rows = 11 ; rows < 16 ; rows++) { - if (mctl_mem_matches(1 << (rows + 9))) /* row-column */ - break; - } - - /* Column (page size) detect */ - para->rows = 11; - para->page_size = 8192; - mctl_set_cr(para); - for (columns = 9 ; columns < 13 ; columns++) { - if (mctl_mem_matches(1 << columns)) - break; - } - - para->seq = 0; - para->rank = orig_rank; - para->rows = rows; - para->page_size = 1 << columns; - mctl_set_cr(para); -} - -static inline int ns_to_t(int nanoseconds) -{ - const unsigned int ctrl_freq = - CONFIG_DRAM_CLK * DRAM_CLK_MUL / DRAM_CLK_DIV; - - return (ctrl_freq * nanoseconds + 999) / 1000; -} - -static void auto_set_timing_para(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - u32 reg_val; - - u8 tccd = 2; - u8 tfaw = ns_to_t(50); - u8 trrd = max(ns_to_t(10), 4); - u8 trcd = ns_to_t(15); - u8 trc = ns_to_t(53); - u8 txp = max(ns_to_t(8), 3); - u8 twtr = max(ns_to_t(8), 4); - u8 trtp = max(ns_to_t(8), 4); - u8 twr = max(ns_to_t(15), 3); - u8 trp = ns_to_t(15); - u8 tras = ns_to_t(38); - - u16 trefi = ns_to_t(7800) / 32; - u16 trfc = ns_to_t(350); - - /* Fixed timing parameters */ - u8 tmrw = 0; - u8 tmrd = 4; - u8 tmod = 12; - u8 tcke = 3; - u8 tcksrx = 5; - u8 tcksre = 5; - u8 tckesr = 4; - u8 trasmax = 24; - u8 tcl = 6; /* CL 12 */ - u8 tcwl = 4; /* CWL 8 */ - u8 t_rdata_en = 4; - u8 wr_latency = 2; - - u32 tdinit0 = (500 * CONFIG_DRAM_CLK) + 1; /* 500us */ - u32 tdinit1 = (360 * CONFIG_DRAM_CLK) / 1000 + 1; /* 360ns */ - u32 tdinit2 = (200 * CONFIG_DRAM_CLK) + 1; /* 200us */ - u32 tdinit3 = (1 * CONFIG_DRAM_CLK) + 1; /* 1us */ - - u8 twtp = tcwl + 2 + twr; /* WL + BL / 2 + tWR */ - u8 twr2rd = tcwl + 2 + twtr; /* WL + BL / 2 + tWTR */ - u8 trd2wr = tcl + 2 + 1 - tcwl; /* RL + BL / 2 + 2 - WL */ - - /* Set work mode register */ - mctl_set_cr(para); - /* Set mode register */ - if (para->dram_type == DRAM_TYPE_DDR3) { - writel(MCTL_MR0, &mctl_ctl->mr0); - writel(MCTL_MR1, &mctl_ctl->mr1); - writel(MCTL_MR2, &mctl_ctl->mr2); - writel(MCTL_MR3, &mctl_ctl->mr3); - } else if (para->dram_type == DRAM_TYPE_LPDDR3) { - writel(MCTL_LPDDR3_MR0, &mctl_ctl->mr0); - writel(MCTL_LPDDR3_MR1, &mctl_ctl->mr1); - writel(MCTL_LPDDR3_MR2, &mctl_ctl->mr2); - writel(MCTL_LPDDR3_MR3, &mctl_ctl->mr3); - - /* timing parameters for LPDDR3 */ - tfaw = max(ns_to_t(50), 4); - trrd = max(ns_to_t(10), 2); - trcd = max(ns_to_t(24), 2); - trc = ns_to_t(70); - txp = max(ns_to_t(8), 2); - twtr = max(ns_to_t(8), 2); - trtp = max(ns_to_t(8), 2); - trp = max(ns_to_t(27), 2); - tras = ns_to_t(42); - trefi = ns_to_t(3900) / 32; - trfc = ns_to_t(210); - tmrw = 5; - tmrd = 5; - tckesr = 5; - tcwl = 3; /* CWL 8 */ - t_rdata_en = 5; - tdinit0 = (200 * CONFIG_DRAM_CLK) + 1; /* 200us */ - tdinit1 = (100 * CONFIG_DRAM_CLK) / 1000 + 1; /* 100ns */ - tdinit2 = (11 * CONFIG_DRAM_CLK) + 1; /* 200us */ - tdinit3 = (1 * CONFIG_DRAM_CLK) + 1; /* 1us */ - twtp = tcwl + 4 + twr + 1; /* CWL + BL/2 + tWR */ - twr2rd = tcwl + 4 + 1 + twtr; /* WL + BL / 2 + tWTR */ - trd2wr = tcl + 4 + 5 - tcwl + 1; /* RL + BL / 2 + 2 - WL */ - } - /* Set dram timing */ - reg_val = (twtp << 24) | (tfaw << 16) | (trasmax << 8) | (tras << 0); - writel(reg_val, &mctl_ctl->dramtmg0); - reg_val = (txp << 16) | (trtp << 8) | (trc << 0); - writel(reg_val, &mctl_ctl->dramtmg1); - reg_val = (tcwl << 24) | (tcl << 16) | (trd2wr << 8) | (twr2rd << 0); - writel(reg_val, &mctl_ctl->dramtmg2); - reg_val = (tmrw << 16) | (tmrd << 12) | (tmod << 0); - writel(reg_val, &mctl_ctl->dramtmg3); - reg_val = (trcd << 24) | (tccd << 16) | (trrd << 8) | (trp << 0); - writel(reg_val, &mctl_ctl->dramtmg4); - reg_val = (tcksrx << 24) | (tcksre << 16) | (tckesr << 8) | (tcke << 0); - writel(reg_val, &mctl_ctl->dramtmg5); - /* Set two rank timing and exit self-refresh timing */ - reg_val = readl(&mctl_ctl->dramtmg8); - reg_val &= ~(0xff << 8); - reg_val &= ~(0xff << 0); - reg_val |= (0x33 << 8); - reg_val |= (0x8 << 0); - writel(reg_val, &mctl_ctl->dramtmg8); - /* Set phy interface time */ - reg_val = (0x2 << 24) | (t_rdata_en << 16) | (0x1 << 8) - | (wr_latency << 0); - /* PHY interface write latency and read latency configure */ - writel(reg_val, &mctl_ctl->pitmg0); - /* Set phy time PTR0-2 use default */ - writel(((tdinit0 << 0) | (tdinit1 << 20)), &mctl_ctl->ptr3); - writel(((tdinit2 << 0) | (tdinit3 << 20)), &mctl_ctl->ptr4); - /* Set refresh timing */ - reg_val = (trefi << 16) | (trfc << 0); - writel(reg_val, &mctl_ctl->rfshtmg); -} - -static void mctl_set_pir(u32 val) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - writel(val, &mctl_ctl->pir); - mctl_await_completion(&mctl_ctl->pgsr0, 0x1, 0x1); -} - -static void mctl_data_train_cfg(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - if (para->rank == 2) - clrsetbits_le32(&mctl_ctl->dtcr, 0x3 << 24, 0x3 << 24); - else - clrsetbits_le32(&mctl_ctl->dtcr, 0x3 << 24, 0x1 << 24); -} - -static int mctl_train_dram(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - mctl_data_train_cfg(para); - mctl_set_pir(0x5f3); - - return ((readl(&mctl_ctl->pgsr0) >> 20) & 0xff) ? -EIO : 0; -} - -static void set_master_priority(void) -{ - writel(0x00a0000d, MCTL_MASTER_CFG0(0)); - writel(0x00500064, MCTL_MASTER_CFG1(0)); - writel(0x07000009, MCTL_MASTER_CFG0(1)); - writel(0x00000600, MCTL_MASTER_CFG1(1)); - writel(0x01000009, MCTL_MASTER_CFG0(3)); - writel(0x00000064, MCTL_MASTER_CFG1(3)); - writel(0x08000009, MCTL_MASTER_CFG0(4)); - writel(0x00000640, MCTL_MASTER_CFG1(4)); - writel(0x20000308, MCTL_MASTER_CFG0(8)); - writel(0x00001000, MCTL_MASTER_CFG1(8)); - writel(0x02800009, MCTL_MASTER_CFG0(9)); - writel(0x00000100, MCTL_MASTER_CFG1(9)); - writel(0x01800009, MCTL_MASTER_CFG0(5)); - writel(0x00000100, MCTL_MASTER_CFG1(5)); - writel(0x01800009, MCTL_MASTER_CFG0(7)); - writel(0x00000100, MCTL_MASTER_CFG1(7)); - writel(0x00640009, MCTL_MASTER_CFG0(6)); - writel(0x00000032, MCTL_MASTER_CFG1(6)); - writel(0x0100000d, MCTL_MASTER_CFG0(2)); - writel(0x00500080, MCTL_MASTER_CFG1(2)); -} - -static int mctl_channel_init(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - u32 low_data_lines_status; /* Training status of datalines 0 - 7 */ - u32 high_data_lines_status; /* Training status of datalines 8 - 15 */ - u32 i, rval; - - auto_set_timing_para(para); - - /* Set dram master access priority */ - writel(0x000101a0, &mctl_com->bwcr); - /* set cpu high priority */ - writel(0x1, &mctl_com->mapr); - set_master_priority(); - udelay(250); - - /* Disable dram VTC */ - clrbits_le32(&mctl_ctl->pgcr0, 0x3f << 0 | 0x1 << 30); - clrsetbits_le32(&mctl_ctl->pgcr1, 0x1 << 24, 0x1 << 26); - - writel(0x94be6fa3, MCTL_PROTECT); - udelay(100); - clrsetbits_le32(MX_UPD2, 0xfff << 16, 0x50 << 16); - writel(0x0, MCTL_PROTECT); - udelay(100); - - - /* Set ODT */ - if (IS_ENABLED(CONFIG_DRAM_ODT_EN)) - rval = 0x0; - else - rval = 0x2; - - for (i = 0 ; i < 11 ; i++) { - clrsetbits_le32(DATX0IOCR(i), (0x3 << 24) | (0x3 << 16), - rval << 24); - clrsetbits_le32(DATX1IOCR(i), (0x3 << 24) | (0x3 << 16), - rval << 24); - clrsetbits_le32(DATX2IOCR(i), (0x3 << 24) | (0x3 << 16), - rval << 24); - clrsetbits_le32(DATX3IOCR(i), (0x3 << 24) | (0x3 << 16), - rval << 24); - } - - for (i = 0; i < 31; i++) - clrsetbits_le32(CAIOCR(i), 0x3 << 26 | 0x3 << 16, 0x2 << 26); - - /* set PLL configuration */ - if (CONFIG_DRAM_CLK >= 480) - setbits_le32(&mctl_ctl->pllgcr, 0x1 << 19); - else - setbits_le32(&mctl_ctl->pllgcr, 0x3 << 19); - - /* Auto detect dram config, set 2 rank and 16bit bus-width */ - para->cs1 = 0; - para->rank = 2; - para->bus_width = 16; - mctl_set_cr(para); - - /* Open DQS gating */ - clrbits_le32(&mctl_ctl->pgcr2, (0x3 << 6)); - clrbits_le32(&mctl_ctl->dqsgmr, (0x1 << 8) | (0x7)); - - if (para->dram_type == DRAM_TYPE_LPDDR3) - clrsetbits_le32(&mctl_ctl->dxccr, (0x1 << 27) | (0x3<<6) , - 0x1 << 31); - if (readl(&mctl_com->cr) & 0x1) - writel(0x00000303, &mctl_ctl->odtmap); - else - writel(0x00000201, &mctl_ctl->odtmap); - - mctl_data_train_cfg(para); - /* ZQ calibration */ - clrsetbits_le32(ZQnPR(0), 0x000000ff, CONFIG_DRAM_ZQ & 0xff); - clrsetbits_le32(ZQnPR(1), 0x000000ff, (CONFIG_DRAM_ZQ >> 8) & 0xff); - /* CA calibration */ - - if (para->dram_type == DRAM_TYPE_DDR3) - mctl_set_pir(0x0201f3 | 0x1<<10); - else - mctl_set_pir(0x020173 | 0x1<<10); - - /* DQS gate training */ - if (mctl_train_dram(para) != 0) { - low_data_lines_status = (readl(DXnGSR0(0)) >> 24) & 0x03; - high_data_lines_status = (readl(DXnGSR0(1)) >> 24) & 0x03; - - if (low_data_lines_status == 0x3) - return -EIO; - - /* DRAM has only one rank */ - para->rank = 1; - mctl_set_cr(para); - - if (low_data_lines_status == high_data_lines_status) - goto done; /* 16 bit bus, 1 rank */ - - if (!(low_data_lines_status & high_data_lines_status)) { - /* Retry 16 bit bus-width with CS1 set */ - para->cs1 = 1; - mctl_set_cr(para); - if (mctl_train_dram(para) == 0) - goto done; - } - - /* Try 8 bit bus-width */ - writel(0x0, DXnGCR0(1)); /* Disable high DQ */ - para->cs1 = 0; - para->bus_width = 8; - mctl_set_cr(para); - if (mctl_train_dram(para) != 0) - return -EIO; - } -done: - /* Check the dramc status */ - mctl_await_completion(&mctl_ctl->statr, 0x1, 0x1); - - /* Close DQS gating */ - setbits_le32(&mctl_ctl->pgcr2, 0x3 << 6); - - /* set PGCR3,CKE polarity */ - writel(0x00aa0060, &mctl_ctl->pgcr3); - /* Enable master access */ - writel(0xffffffff, &mctl_com->maer); - - return 0; -} - -static void mctl_sys_init(struct dram_para *para) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - clrbits_le32(&ccm->mbus_clk_cfg, MBUS_CLK_GATE); - clrbits_le32(&ccm->mbus_reset, CCM_MBUS_RESET_RESET); - clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); - clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); - clrbits_le32(&ccm->pll5_cfg, CCM_PLL5_CTRL_EN); - udelay(1000); - clrbits_le32(&ccm->dram_clk_cfg, 0x01<<31); - - clock_set_pll5(CONFIG_DRAM_CLK * 1000000 * DRAM_CLK_MUL); - - clrsetbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_DIV_MASK, - CCM_DRAMCLK_CFG_DIV(DRAM_CLK_DIV) | - CCM_DRAMCLK_CFG_RST | CCM_DRAMCLK_CFG_UPD); - mctl_await_completion(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_UPD, 0); - - setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); - setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); - setbits_le32(&ccm->mbus_reset, CCM_MBUS_RESET_RESET); - setbits_le32(&ccm->mbus_clk_cfg, MBUS_CLK_GATE); - - para->rank = 2; - para->bus_width = 16; - mctl_set_cr(para); - - /* Set dram master access priority */ - writel(0x0000e00f, &mctl_ctl->clken); /* normal */ - - udelay(250); -} - -unsigned long sunxi_dram_init(void) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - struct dram_para para = { - .cs1 = 0, - .bank = 1, - .rank = 1, - .rows = 15, - .bus_width = 16, - .page_size = 2048, - }; - -#if defined(CONFIG_MACH_SUN8I_A83T) -#if (CONFIG_DRAM_TYPE == 3) || (CONFIG_DRAM_TYPE == 7) - para.dram_type = CONFIG_DRAM_TYPE; -#else -#error Unsupported DRAM type, Please set DRAM type (3:DDR3, 7:LPDDR3) -#endif -#endif - setbits_le32(SUNXI_PRCM_BASE + 0x1e0, 0x1 << 8); - - writel(0, (SUNXI_PRCM_BASE + 0x1e8)); - udelay(10); - - mctl_sys_init(¶); - - if (mctl_channel_init(¶) != 0) - return 0; - - auto_detect_dram_size(¶); - - /* Enable master software clk */ - writel(readl(&mctl_com->swonr) | 0x3ffff, &mctl_com->swonr); - - /* Set DRAM ODT MAP */ - if (para.rank == 2) - writel(0x00000303, &mctl_ctl->odtmap); - else - writel(0x00000201, &mctl_ctl->odtmap); - - return para.page_size * (para.bus_width / 8) * - (1 << (para.bank + para.rank + para.rows)); -} diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun8i_h3.c b/arch/arm/cpu/armv7/sunxi/dram_sun8i_h3.c deleted file mode 100644 index 2020d75fd1..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_sun8i_h3.c +++ /dev/null @@ -1,469 +0,0 @@ -/* - * sun8i H3 platform dram controller init - * - * (C) Copyright 2007-2015 Allwinner Technology Co. - * Jerry Wang <wangflord@allwinnertech.com> - * (C) Copyright 2015 Vishnu Patekar <vishnupatekar0510@gmail.com> - * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com> - * (C) Copyright 2015 Jens Kuske <jenskuske@gmail.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/dram.h> -#include <linux/kconfig.h> - -struct dram_para { - u32 read_delays; - u32 write_delays; - u16 page_size; - u8 bus_width; - u8 dual_rank; - u8 row_bits; -}; - -static inline int ns_to_t(int nanoseconds) -{ - const unsigned int ctrl_freq = CONFIG_DRAM_CLK / 2; - - return DIV_ROUND_UP(ctrl_freq * nanoseconds, 1000); -} - -static u32 bin_to_mgray(int val) -{ - static const u8 lookup_table[32] = { - 0x00, 0x01, 0x02, 0x03, 0x06, 0x07, 0x04, 0x05, - 0x0c, 0x0d, 0x0e, 0x0f, 0x0a, 0x0b, 0x08, 0x09, - 0x18, 0x19, 0x1a, 0x1b, 0x1e, 0x1f, 0x1c, 0x1d, - 0x14, 0x15, 0x16, 0x17, 0x12, 0x13, 0x10, 0x11, - }; - - return lookup_table[clamp(val, 0, 31)]; -} - -static int mgray_to_bin(u32 val) -{ - static const u8 lookup_table[32] = { - 0x00, 0x01, 0x02, 0x03, 0x06, 0x07, 0x04, 0x05, - 0x0e, 0x0f, 0x0c, 0x0d, 0x08, 0x09, 0x0a, 0x0b, - 0x1e, 0x1f, 0x1c, 0x1d, 0x18, 0x19, 0x1a, 0x1b, - 0x10, 0x11, 0x12, 0x13, 0x16, 0x17, 0x14, 0x15, - }; - - return lookup_table[val & 0x1f]; -} - -static void mctl_phy_init(u32 val) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - writel(val | PIR_INIT, &mctl_ctl->pir); - mctl_await_completion(&mctl_ctl->pgsr[0], PGSR_INIT_DONE, 0x1); -} - -static void mctl_dq_delay(u32 read, u32 write) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - int i, j; - u32 val; - - for (i = 0; i < 4; i++) { - val = DATX_IOCR_WRITE_DELAY((write >> (i * 4)) & 0xf) | - DATX_IOCR_READ_DELAY(((read >> (i * 4)) & 0xf) * 2); - - for (j = DATX_IOCR_DQ(0); j <= DATX_IOCR_DM; j++) - writel(val, &mctl_ctl->datx[i].iocr[j]); - } - - clrbits_le32(&mctl_ctl->pgcr[0], 1 << 26); - - for (i = 0; i < 4; i++) { - val = DATX_IOCR_WRITE_DELAY((write >> (16 + i * 4)) & 0xf) | - DATX_IOCR_READ_DELAY((read >> (16 + i * 4)) & 0xf); - - writel(val, &mctl_ctl->datx[i].iocr[DATX_IOCR_DQS]); - writel(val, &mctl_ctl->datx[i].iocr[DATX_IOCR_DQSN]); - } - - setbits_le32(&mctl_ctl->pgcr[0], 1 << 26); - - udelay(1); -} - -static void mctl_set_master_priority(void) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - - /* enable bandwidth limit windows and set windows size 1us */ - writel(0x00010190, &mctl_com->bwcr); - - /* set cpu high priority */ - writel(0x00000001, &mctl_com->mapr); - - writel(0x0200000d, &mctl_com->mcr[0][0]); - writel(0x00800100, &mctl_com->mcr[0][1]); - writel(0x06000009, &mctl_com->mcr[1][0]); - writel(0x01000400, &mctl_com->mcr[1][1]); - writel(0x0200000d, &mctl_com->mcr[2][0]); - writel(0x00600100, &mctl_com->mcr[2][1]); - writel(0x0100000d, &mctl_com->mcr[3][0]); - writel(0x00200080, &mctl_com->mcr[3][1]); - writel(0x07000009, &mctl_com->mcr[4][0]); - writel(0x01000640, &mctl_com->mcr[4][1]); - writel(0x0100000d, &mctl_com->mcr[5][0]); - writel(0x00200080, &mctl_com->mcr[5][1]); - writel(0x01000009, &mctl_com->mcr[6][0]); - writel(0x00400080, &mctl_com->mcr[6][1]); - writel(0x0100000d, &mctl_com->mcr[7][0]); - writel(0x00400080, &mctl_com->mcr[7][1]); - writel(0x0100000d, &mctl_com->mcr[8][0]); - writel(0x00400080, &mctl_com->mcr[8][1]); - writel(0x04000009, &mctl_com->mcr[9][0]); - writel(0x00400100, &mctl_com->mcr[9][1]); - writel(0x2000030d, &mctl_com->mcr[10][0]); - writel(0x04001800, &mctl_com->mcr[10][1]); - writel(0x04000009, &mctl_com->mcr[11][0]); - writel(0x00400120, &mctl_com->mcr[11][1]); -} - -static void mctl_set_timing_params(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - u8 tccd = 2; - u8 tfaw = ns_to_t(50); - u8 trrd = max(ns_to_t(10), 4); - u8 trcd = ns_to_t(15); - u8 trc = ns_to_t(53); - u8 txp = max(ns_to_t(8), 3); - u8 twtr = max(ns_to_t(8), 4); - u8 trtp = max(ns_to_t(8), 4); - u8 twr = max(ns_to_t(15), 3); - u8 trp = ns_to_t(15); - u8 tras = ns_to_t(38); - u16 trefi = ns_to_t(7800) / 32; - u16 trfc = ns_to_t(350); - - u8 tmrw = 0; - u8 tmrd = 4; - u8 tmod = 12; - u8 tcke = 3; - u8 tcksrx = 5; - u8 tcksre = 5; - u8 tckesr = 4; - u8 trasmax = 24; - - u8 tcl = 6; /* CL 12 */ - u8 tcwl = 4; /* CWL 8 */ - u8 t_rdata_en = 4; - u8 wr_latency = 2; - - u32 tdinit0 = (500 * CONFIG_DRAM_CLK) + 1; /* 500us */ - u32 tdinit1 = (360 * CONFIG_DRAM_CLK) / 1000 + 1; /* 360ns */ - u32 tdinit2 = (200 * CONFIG_DRAM_CLK) + 1; /* 200us */ - u32 tdinit3 = (1 * CONFIG_DRAM_CLK) + 1; /* 1us */ - - u8 twtp = tcwl + 2 + twr; /* WL + BL / 2 + tWR */ - u8 twr2rd = tcwl + 2 + twtr; /* WL + BL / 2 + tWTR */ - u8 trd2wr = tcl + 2 + 1 - tcwl; /* RL + BL / 2 + 2 - WL */ - - /* set mode register */ - writel(0x1c70, &mctl_ctl->mr[0]); /* CL=11, WR=12 */ - writel(0x40, &mctl_ctl->mr[1]); - writel(0x18, &mctl_ctl->mr[2]); /* CWL=8 */ - writel(0x0, &mctl_ctl->mr[3]); - - /* set DRAM timing */ - writel(DRAMTMG0_TWTP(twtp) | DRAMTMG0_TFAW(tfaw) | - DRAMTMG0_TRAS_MAX(trasmax) | DRAMTMG0_TRAS(tras), - &mctl_ctl->dramtmg[0]); - writel(DRAMTMG1_TXP(txp) | DRAMTMG1_TRTP(trtp) | DRAMTMG1_TRC(trc), - &mctl_ctl->dramtmg[1]); - writel(DRAMTMG2_TCWL(tcwl) | DRAMTMG2_TCL(tcl) | - DRAMTMG2_TRD2WR(trd2wr) | DRAMTMG2_TWR2RD(twr2rd), - &mctl_ctl->dramtmg[2]); - writel(DRAMTMG3_TMRW(tmrw) | DRAMTMG3_TMRD(tmrd) | DRAMTMG3_TMOD(tmod), - &mctl_ctl->dramtmg[3]); - writel(DRAMTMG4_TRCD(trcd) | DRAMTMG4_TCCD(tccd) | DRAMTMG4_TRRD(trrd) | - DRAMTMG4_TRP(trp), &mctl_ctl->dramtmg[4]); - writel(DRAMTMG5_TCKSRX(tcksrx) | DRAMTMG5_TCKSRE(tcksre) | - DRAMTMG5_TCKESR(tckesr) | DRAMTMG5_TCKE(tcke), - &mctl_ctl->dramtmg[5]); - - /* set two rank timing */ - clrsetbits_le32(&mctl_ctl->dramtmg[8], (0xff << 8) | (0xff << 0), - (0x66 << 8) | (0x10 << 0)); - - /* set PHY interface timing, write latency and read latency configure */ - writel((0x2 << 24) | (t_rdata_en << 16) | (0x1 << 8) | - (wr_latency << 0), &mctl_ctl->pitmg[0]); - - /* set PHY timing, PTR0-2 use default */ - writel(PTR3_TDINIT0(tdinit0) | PTR3_TDINIT1(tdinit1), &mctl_ctl->ptr[3]); - writel(PTR4_TDINIT2(tdinit2) | PTR4_TDINIT3(tdinit3), &mctl_ctl->ptr[4]); - - /* set refresh timing */ - writel(RFSHTMG_TREFI(trefi) | RFSHTMG_TRFC(trfc), &mctl_ctl->rfshtmg); -} - -static void mctl_zq_calibration(struct dram_para *para) -{ - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - int i; - u16 zq_val[6]; - u8 val; - - writel(0x0a0a0a0a, &mctl_ctl->zqdr[2]); - - for (i = 0; i < 6; i++) { - u8 zq = (CONFIG_DRAM_ZQ >> (i * 4)) & 0xf; - - writel((zq << 20) | (zq << 16) | (zq << 12) | - (zq << 8) | (zq << 4) | (zq << 0), - &mctl_ctl->zqcr); - - writel(PIR_CLRSR, &mctl_ctl->pir); - mctl_phy_init(PIR_ZCAL); - - zq_val[i] = readl(&mctl_ctl->zqdr[0]) & 0xff; - writel(REPEAT_BYTE(zq_val[i]), &mctl_ctl->zqdr[2]); - - writel(PIR_CLRSR, &mctl_ctl->pir); - mctl_phy_init(PIR_ZCAL); - - val = readl(&mctl_ctl->zqdr[0]) >> 24; - zq_val[i] |= bin_to_mgray(mgray_to_bin(val) - 1) << 8; - } - - writel((zq_val[1] << 16) | zq_val[0], &mctl_ctl->zqdr[0]); - writel((zq_val[3] << 16) | zq_val[2], &mctl_ctl->zqdr[1]); - writel((zq_val[5] << 16) | zq_val[4], &mctl_ctl->zqdr[2]); -} - -static void mctl_set_cr(struct dram_para *para) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - - writel(MCTL_CR_BL8 | MCTL_CR_2T | MCTL_CR_DDR3 | MCTL_CR_INTERLEAVED | - MCTL_CR_EIGHT_BANKS | MCTL_CR_BUS_WIDTH(para->bus_width) | - (para->dual_rank ? MCTL_CR_DUAL_RANK : MCTL_CR_SINGLE_RANK) | - MCTL_CR_PAGE_SIZE(para->page_size) | - MCTL_CR_ROW_BITS(para->row_bits), &mctl_com->cr); -} - -static void mctl_sys_init(struct dram_para *para) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - clrbits_le32(&ccm->mbus0_clk_cfg, MBUS_CLK_GATE); - clrbits_le32(&ccm->mbus_reset, CCM_MBUS_RESET_RESET); - clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); - clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); - clrbits_le32(&ccm->pll5_cfg, CCM_PLL5_CTRL_EN); - udelay(10); - - clrbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_RST); - udelay(1000); - - clock_set_pll5(CONFIG_DRAM_CLK * 2 * 1000000, false); - clrsetbits_le32(&ccm->dram_clk_cfg, - CCM_DRAMCLK_CFG_DIV_MASK | CCM_DRAMCLK_CFG_SRC_MASK, - CCM_DRAMCLK_CFG_DIV(1) | CCM_DRAMCLK_CFG_SRC_PLL5 | - CCM_DRAMCLK_CFG_UPD); - mctl_await_completion(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_UPD, 0); - - setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); - setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); - setbits_le32(&ccm->mbus_reset, CCM_MBUS_RESET_RESET); - setbits_le32(&ccm->mbus0_clk_cfg, MBUS_CLK_GATE); - - setbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_RST); - udelay(10); - - writel(0xc00e, &mctl_ctl->clken); - udelay(500); -} - -static int mctl_channel_init(struct dram_para *para) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - unsigned int i; - - mctl_set_cr(para); - mctl_set_timing_params(para); - mctl_set_master_priority(); - - /* setting VTC, default disable all VT */ - clrbits_le32(&mctl_ctl->pgcr[0], (1 << 30) | 0x3f); - clrsetbits_le32(&mctl_ctl->pgcr[1], 1 << 24, 1 << 26); - - /* increase DFI_PHY_UPD clock */ - writel(PROTECT_MAGIC, &mctl_com->protect); - udelay(100); - clrsetbits_le32(&mctl_ctl->upd2, 0xfff << 16, 0x50 << 16); - writel(0x0, &mctl_com->protect); - udelay(100); - - /* set dramc odt */ - for (i = 0; i < 4; i++) - clrsetbits_le32(&mctl_ctl->datx[i].gcr, (0x3 << 4) | - (0x1 << 1) | (0x3 << 2) | (0x3 << 12) | - (0x3 << 14), - IS_ENABLED(CONFIG_DRAM_ODT_EN) ? 0x0 : 0x2); - - /* AC PDR should always ON */ - setbits_le32(&mctl_ctl->aciocr, 0x1 << 1); - - /* set DQS auto gating PD mode */ - setbits_le32(&mctl_ctl->pgcr[2], 0x3 << 6); - - /* dx ddr_clk & hdr_clk dynamic mode */ - clrbits_le32(&mctl_ctl->pgcr[0], (0x3 << 14) | (0x3 << 12)); - - /* dphy & aphy phase select 270 degree */ - clrsetbits_le32(&mctl_ctl->pgcr[2], (0x3 << 10) | (0x3 << 8), - (0x1 << 10) | (0x2 << 8)); - - /* set half DQ */ - if (para->bus_width != 32) { - writel(0x0, &mctl_ctl->datx[2].gcr); - writel(0x0, &mctl_ctl->datx[3].gcr); - } - - /* data training configuration */ - clrsetbits_le32(&mctl_ctl->dtcr, 0xf << 24, - (para->dual_rank ? 0x3 : 0x1) << 24); - - - if (para->read_delays || para->write_delays) { - mctl_dq_delay(para->read_delays, para->write_delays); - udelay(50); - } - - mctl_zq_calibration(para); - - mctl_phy_init(PIR_PLLINIT | PIR_DCAL | PIR_PHYRST | PIR_DRAMRST | - PIR_DRAMINIT | PIR_QSGATE); - - /* detect ranks and bus width */ - if (readl(&mctl_ctl->pgsr[0]) & (0xfe << 20)) { - /* only one rank */ - if (((readl(&mctl_ctl->datx[0].gsr[0]) >> 24) & 0x2) || - ((readl(&mctl_ctl->datx[1].gsr[0]) >> 24) & 0x2)) { - clrsetbits_le32(&mctl_ctl->dtcr, 0xf << 24, 0x1 << 24); - para->dual_rank = 0; - } - - /* only half DQ width */ - if (((readl(&mctl_ctl->datx[2].gsr[0]) >> 24) & 0x1) || - ((readl(&mctl_ctl->datx[3].gsr[0]) >> 24) & 0x1)) { - writel(0x0, &mctl_ctl->datx[2].gcr); - writel(0x0, &mctl_ctl->datx[3].gcr); - para->bus_width = 16; - } - - mctl_set_cr(para); - udelay(20); - - /* re-train */ - mctl_phy_init(PIR_QSGATE); - if (readl(&mctl_ctl->pgsr[0]) & (0xfe << 20)) - return 1; - } - - /* check the dramc status */ - mctl_await_completion(&mctl_ctl->statr, 0x1, 0x1); - - /* liuke added for refresh debug */ - setbits_le32(&mctl_ctl->rfshctl0, 0x1 << 31); - udelay(10); - clrbits_le32(&mctl_ctl->rfshctl0, 0x1 << 31); - udelay(10); - - /* set PGCR3, CKE polarity */ - writel(0x00aa0060, &mctl_ctl->pgcr[3]); - - /* power down zq calibration module for power save */ - setbits_le32(&mctl_ctl->zqcr, ZQCR_PWRDOWN); - - /* enable master access */ - writel(0xffffffff, &mctl_com->maer); - - return 0; -} - -static void mctl_auto_detect_dram_size(struct dram_para *para) -{ - /* detect row address bits */ - para->page_size = 512; - para->row_bits = 16; - mctl_set_cr(para); - - for (para->row_bits = 11; para->row_bits < 16; para->row_bits++) - if (mctl_mem_matches((1 << (para->row_bits + 3)) * para->page_size)) - break; - - /* detect page size */ - para->page_size = 8192; - mctl_set_cr(para); - - for (para->page_size = 512; para->page_size < 8192; para->page_size *= 2) - if (mctl_mem_matches(para->page_size)) - break; -} - -unsigned long sunxi_dram_init(void) -{ - struct sunxi_mctl_com_reg * const mctl_com = - (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; - struct sunxi_mctl_ctl_reg * const mctl_ctl = - (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; - - struct dram_para para = { - .read_delays = 0x00007979, /* dram_tpr12 */ - .write_delays = 0x6aaa0000, /* dram_tpr11 */ - .dual_rank = 0, - .bus_width = 32, - .row_bits = 15, - .page_size = 4096, - }; - - mctl_sys_init(¶); - if (mctl_channel_init(¶)) - return 0; - - if (para.dual_rank) - writel(0x00000303, &mctl_ctl->odtmap); - else - writel(0x00000201, &mctl_ctl->odtmap); - udelay(1); - - /* odt delay */ - writel(0x0c000400, &mctl_ctl->odtcfg); - - /* clear credit value */ - setbits_le32(&mctl_com->cccr, 1 << 31); - udelay(10); - - mctl_auto_detect_dram_size(¶); - mctl_set_cr(¶); - - return (1 << (para.row_bits + 3)) * para.page_size * - (para.dual_rank ? 2 : 1); -} diff --git a/arch/arm/cpu/armv7/sunxi/p2wi.c b/arch/arm/cpu/armv7/sunxi/p2wi.c deleted file mode 100644 index 26a9cfc68b..0000000000 --- a/arch/arm/cpu/armv7/sunxi/p2wi.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - * Sunxi A31 Power Management Unit - * - * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl> - * http://linux-sunxi.org - * - * Based on sun6i sources and earlier U-Boot Allwiner A10 SPL work - * - * (C) Copyright 2006-2013 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Berg Xing <bergxing@allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <errno.h> -#include <asm/io.h> -#include <asm/arch/cpu.h> -#include <asm/arch/gpio.h> -#include <asm/arch/p2wi.h> -#include <asm/arch/prcm.h> -#include <asm/arch/clock.h> -#include <asm/arch/sys_proto.h> - -void p2wi_init(void) -{ - struct sunxi_p2wi_reg *p2wi = (struct sunxi_p2wi_reg *)SUN6I_P2WI_BASE; - - /* Enable p2wi and PIO clk, and de-assert their resets */ - prcm_apb0_enable(PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_P2WI); - - sunxi_gpio_set_cfgpin(SUNXI_GPL(0), SUN6I_GPL0_R_P2WI_SCK); - sunxi_gpio_set_cfgpin(SUNXI_GPL(1), SUN6I_GPL1_R_P2WI_SDA); - - /* Reset p2wi controller and set clock to CLKIN(12)/8 = 1.5 MHz */ - writel(P2WI_CTRL_RESET, &p2wi->ctrl); - sdelay(0x100); - writel(P2WI_CC_SDA_OUT_DELAY(1) | P2WI_CC_CLK_DIV(8), - &p2wi->cc); -} - -int p2wi_change_to_p2wi_mode(u8 slave_addr, u8 ctrl_reg, u8 init_data) -{ - struct sunxi_p2wi_reg *p2wi = (struct sunxi_p2wi_reg *)SUN6I_P2WI_BASE; - unsigned long tmo = timer_get_us() + 1000000; - - writel(P2WI_PM_DEV_ADDR(slave_addr) | - P2WI_PM_CTRL_ADDR(ctrl_reg) | - P2WI_PM_INIT_DATA(init_data) | - P2WI_PM_INIT_SEND, - &p2wi->pm); - - while ((readl(&p2wi->pm) & P2WI_PM_INIT_SEND)) { - if (timer_get_us() > tmo) - return -ETIME; - } - - return 0; -} - -static int p2wi_await_trans(void) -{ - struct sunxi_p2wi_reg *p2wi = (struct sunxi_p2wi_reg *)SUN6I_P2WI_BASE; - unsigned long tmo = timer_get_us() + 1000000; - int ret; - u8 reg; - - while (1) { - reg = readl(&p2wi->status); - if (reg & P2WI_STAT_TRANS_ERR) { - ret = -EIO; - break; - } - if (reg & P2WI_STAT_TRANS_DONE) { - ret = 0; - break; - } - if (timer_get_us() > tmo) { - ret = -ETIME; - break; - } - } - writel(reg, &p2wi->status); /* Clear status bits */ - return ret; -} - -int p2wi_read(const u8 addr, u8 *data) -{ - struct sunxi_p2wi_reg *p2wi = (struct sunxi_p2wi_reg *)SUN6I_P2WI_BASE; - int ret; - - writel(P2WI_DATADDR_BYTE_1(addr), &p2wi->dataddr0); - writel(P2WI_DATA_NUM_BYTES(1) | - P2WI_DATA_NUM_BYTES_READ, &p2wi->numbytes); - writel(P2WI_STAT_TRANS_DONE, &p2wi->status); - writel(P2WI_CTRL_TRANS_START, &p2wi->ctrl); - - ret = p2wi_await_trans(); - - *data = readl(&p2wi->data0) & P2WI_DATA_BYTE_1_MASK; - return ret; -} - -int p2wi_write(const u8 addr, u8 data) -{ - struct sunxi_p2wi_reg *p2wi = (struct sunxi_p2wi_reg *)SUN6I_P2WI_BASE; - - writel(P2WI_DATADDR_BYTE_1(addr), &p2wi->dataddr0); - writel(P2WI_DATA_BYTE_1(data), &p2wi->data0); - writel(P2WI_DATA_NUM_BYTES(1), &p2wi->numbytes); - writel(P2WI_STAT_TRANS_DONE, &p2wi->status); - writel(P2WI_CTRL_TRANS_START, &p2wi->ctrl); - - return p2wi_await_trans(); -} diff --git a/arch/arm/cpu/armv7/sunxi/pinmux.c b/arch/arm/cpu/armv7/sunxi/pinmux.c deleted file mode 100644 index b026f78ca5..0000000000 --- a/arch/arm/cpu/armv7/sunxi/pinmux.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * (C) Copyright 2007-2011 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/gpio.h> - -void sunxi_gpio_set_cfgbank(struct sunxi_gpio *pio, int bank_offset, u32 val) -{ - u32 index = GPIO_CFG_INDEX(bank_offset); - u32 offset = GPIO_CFG_OFFSET(bank_offset); - - clrsetbits_le32(&pio->cfg[0] + index, 0xf << offset, val << offset); -} - -void sunxi_gpio_set_cfgpin(u32 pin, u32 val) -{ - u32 bank = GPIO_BANK(pin); - struct sunxi_gpio *pio = BANK_TO_GPIO(bank); - - sunxi_gpio_set_cfgbank(pio, pin, val); -} - -int sunxi_gpio_get_cfgbank(struct sunxi_gpio *pio, int bank_offset) -{ - u32 index = GPIO_CFG_INDEX(bank_offset); - u32 offset = GPIO_CFG_OFFSET(bank_offset); - u32 cfg; - - cfg = readl(&pio->cfg[0] + index); - cfg >>= offset; - - return cfg & 0xf; -} - -int sunxi_gpio_get_cfgpin(u32 pin) -{ - u32 bank = GPIO_BANK(pin); - struct sunxi_gpio *pio = BANK_TO_GPIO(bank); - - return sunxi_gpio_get_cfgbank(pio, pin); -} - -int sunxi_gpio_set_drv(u32 pin, u32 val) -{ - u32 bank = GPIO_BANK(pin); - u32 index = GPIO_DRV_INDEX(pin); - u32 offset = GPIO_DRV_OFFSET(pin); - struct sunxi_gpio *pio = BANK_TO_GPIO(bank); - - clrsetbits_le32(&pio->drv[0] + index, 0x3 << offset, val << offset); - - return 0; -} - -int sunxi_gpio_set_pull(u32 pin, u32 val) -{ - u32 bank = GPIO_BANK(pin); - u32 index = GPIO_PULL_INDEX(pin); - u32 offset = GPIO_PULL_OFFSET(pin); - struct sunxi_gpio *pio = BANK_TO_GPIO(bank); - - clrsetbits_le32(&pio->pull[0] + index, 0x3 << offset, val << offset); - - return 0; -} diff --git a/arch/arm/cpu/armv7/sunxi/pmic_bus.c b/arch/arm/cpu/armv7/sunxi/pmic_bus.c deleted file mode 100644 index 5b81a8d8e1..0000000000 --- a/arch/arm/cpu/armv7/sunxi/pmic_bus.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com> - * - * Sunxi PMIC bus access helpers - * - * The axp152 & axp209 use an i2c bus, the axp221 uses the p2wi bus and the - * axp223 uses the rsb bus, these functions abstract this. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/arch/p2wi.h> -#include <asm/arch/rsb.h> -#include <i2c.h> -#include <asm/arch/pmic_bus.h> - -#define AXP152_I2C_ADDR 0x30 - -#define AXP209_I2C_ADDR 0x34 - -#define AXP221_CHIP_ADDR 0x68 -#define AXP221_CTRL_ADDR 0x3e -#define AXP221_INIT_DATA 0x3e - -/* AXP818 device and runtime addresses are same as AXP223 */ -#define AXP223_DEVICE_ADDR 0x3a3 -#define AXP223_RUNTIME_ADDR 0x2d - -int pmic_bus_init(void) -{ - /* This cannot be 0 because it is used in SPL before BSS is ready */ - static int needs_init = 1; - __maybe_unused int ret; - - if (!needs_init) - return 0; - -#if defined CONFIG_AXP221_POWER || defined CONFIG_AXP818_POWER -# ifdef CONFIG_MACH_SUN6I - p2wi_init(); - ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR, - AXP221_INIT_DATA); -# else - ret = rsb_init(); - if (ret) - return ret; - - ret = rsb_set_device_address(AXP223_DEVICE_ADDR, AXP223_RUNTIME_ADDR); -# endif - if (ret) - return ret; -#endif - - needs_init = 0; - return 0; -} - -int pmic_bus_read(u8 reg, u8 *data) -{ -#ifdef CONFIG_AXP152_POWER - return i2c_read(AXP152_I2C_ADDR, reg, 1, data, 1); -#elif defined CONFIG_AXP209_POWER - return i2c_read(AXP209_I2C_ADDR, reg, 1, data, 1); -#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP818_POWER -# ifdef CONFIG_MACH_SUN6I - return p2wi_read(reg, data); -# else - return rsb_read(AXP223_RUNTIME_ADDR, reg, data); -# endif -#endif -} - -int pmic_bus_write(u8 reg, u8 data) -{ -#ifdef CONFIG_AXP152_POWER - return i2c_write(AXP152_I2C_ADDR, reg, 1, &data, 1); -#elif defined CONFIG_AXP209_POWER - return i2c_write(AXP209_I2C_ADDR, reg, 1, &data, 1); -#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP818_POWER -# ifdef CONFIG_MACH_SUN6I - return p2wi_write(reg, data); -# else - return rsb_write(AXP223_RUNTIME_ADDR, reg, data); -# endif -#endif -} - -int pmic_bus_setbits(u8 reg, u8 bits) -{ - int ret; - u8 val; - - ret = pmic_bus_read(reg, &val); - if (ret) - return ret; - - val |= bits; - return pmic_bus_write(reg, val); -} - -int pmic_bus_clrbits(u8 reg, u8 bits) -{ - int ret; - u8 val; - - ret = pmic_bus_read(reg, &val); - if (ret) - return ret; - - val &= ~bits; - return pmic_bus_write(reg, val); -} diff --git a/arch/arm/cpu/armv7/sunxi/prcm.c b/arch/arm/cpu/armv7/sunxi/prcm.c deleted file mode 100644 index e1d091fd57..0000000000 --- a/arch/arm/cpu/armv7/sunxi/prcm.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Sunxi A31 Power Management Unit - * - * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl> - * http://linux-sunxi.org - * - * Based on sun6i sources and earlier U-Boot Allwinner A10 SPL work - * - * (C) Copyright 2006-2013 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * Berg Xing <bergxing@allwinnertech.com> - * Tom Cubie <tangliang@allwinnertech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <errno.h> -#include <asm/io.h> -#include <asm/arch/cpu.h> -#include <asm/arch/prcm.h> -#include <asm/arch/sys_proto.h> - -/* APB0 clock gate and reset bit offsets are the same. */ -void prcm_apb0_enable(u32 flags) -{ - struct sunxi_prcm_reg *prcm = - (struct sunxi_prcm_reg *)SUNXI_PRCM_BASE; - - /* open the clock for module */ - setbits_le32(&prcm->apb0_gate, flags); - - /* deassert reset for module */ - setbits_le32(&prcm->apb0_reset, flags); -} - -void prcm_apb0_disable(u32 flags) -{ - struct sunxi_prcm_reg *prcm = - (struct sunxi_prcm_reg *)SUNXI_PRCM_BASE; - - /* assert reset for module */ - clrbits_le32(&prcm->apb0_reset, flags); - - /* close the clock for module */ - clrbits_le32(&prcm->apb0_gate, flags); -} diff --git a/arch/arm/cpu/armv7/sunxi/rsb.c b/arch/arm/cpu/armv7/sunxi/rsb.c deleted file mode 100644 index 6fd11f1529..0000000000 --- a/arch/arm/cpu/armv7/sunxi/rsb.c +++ /dev/null @@ -1,175 +0,0 @@ -/* - * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com> - * - * Based on allwinner u-boot sources rsb code which is: - * (C) Copyright 2007-2013 - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * lixiang <lixiang@allwinnertech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <errno.h> -#include <asm/arch/cpu.h> -#include <asm/arch/gpio.h> -#include <asm/arch/prcm.h> -#include <asm/arch/rsb.h> - -static int rsb_set_device_mode(void); - -static void rsb_cfg_io(void) -{ -#ifdef CONFIG_MACH_SUN8I - sunxi_gpio_set_cfgpin(SUNXI_GPL(0), SUN8I_GPL_R_RSB); - sunxi_gpio_set_cfgpin(SUNXI_GPL(1), SUN8I_GPL_R_RSB); - sunxi_gpio_set_pull(SUNXI_GPL(0), 1); - sunxi_gpio_set_pull(SUNXI_GPL(1), 1); - sunxi_gpio_set_drv(SUNXI_GPL(0), 2); - sunxi_gpio_set_drv(SUNXI_GPL(1), 2); -#elif defined CONFIG_MACH_SUN9I - sunxi_gpio_set_cfgpin(SUNXI_GPN(0), SUN9I_GPN_R_RSB); - sunxi_gpio_set_cfgpin(SUNXI_GPN(1), SUN9I_GPN_R_RSB); - sunxi_gpio_set_pull(SUNXI_GPN(0), 1); - sunxi_gpio_set_pull(SUNXI_GPN(1), 1); - sunxi_gpio_set_drv(SUNXI_GPN(0), 2); - sunxi_gpio_set_drv(SUNXI_GPN(1), 2); -#else -#error unsupported MACH_SUNXI -#endif -} - -static void rsb_set_clk(void) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - u32 div = 0; - u32 cd_odly = 0; - - /* Source is Hosc24M, set RSB clk to 3Mhz */ - div = 24000000 / 3000000 / 2 - 1; - cd_odly = div >> 1; - if (!cd_odly) - cd_odly = 1; - - writel((cd_odly << 8) | div, &rsb->ccr); -} - -int rsb_init(void) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - - /* Enable RSB and PIO clk, and de-assert their resets */ - prcm_apb0_enable(PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_RSB); - - /* Setup external pins */ - rsb_cfg_io(); - - writel(RSB_CTRL_SOFT_RST, &rsb->ctrl); - rsb_set_clk(); - - return rsb_set_device_mode(); -} - -static int rsb_await_trans(void) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - unsigned long tmo = timer_get_us() + 1000000; - u32 stat; - int ret; - - while (1) { - stat = readl(&rsb->stat); - if (stat & RSB_STAT_LBSY_INT) { - ret = -EBUSY; - break; - } - if (stat & RSB_STAT_TERR_INT) { - ret = -EIO; - break; - } - if (stat & RSB_STAT_TOVER_INT) { - ret = 0; - break; - } - if (timer_get_us() > tmo) { - ret = -ETIME; - break; - } - } - writel(stat, &rsb->stat); /* Clear status bits */ - - return ret; -} - -static int rsb_set_device_mode(void) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - unsigned long tmo = timer_get_us() + 1000000; - - writel(RSB_DMCR_DEVICE_MODE_START | RSB_DMCR_DEVICE_MODE_DATA, - &rsb->dmcr); - - while (readl(&rsb->dmcr) & RSB_DMCR_DEVICE_MODE_START) { - if (timer_get_us() > tmo) - return -ETIME; - } - - return rsb_await_trans(); -} - -static int rsb_do_trans(void) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - - setbits_le32(&rsb->ctrl, RSB_CTRL_START_TRANS); - return rsb_await_trans(); -} - -int rsb_set_device_address(u16 device_addr, u16 runtime_addr) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - - writel(RSB_DEVADDR_RUNTIME_ADDR(runtime_addr) | - RSB_DEVADDR_DEVICE_ADDR(device_addr), &rsb->devaddr); - writel(RSB_CMD_SET_RTSADDR, &rsb->cmd); - - return rsb_do_trans(); -} - -int rsb_write(const u16 runtime_device_addr, const u8 reg_addr, u8 data) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - - writel(RSB_DEVADDR_RUNTIME_ADDR(runtime_device_addr), &rsb->devaddr); - writel(reg_addr, &rsb->addr); - writel(data, &rsb->data); - writel(RSB_CMD_BYTE_WRITE, &rsb->cmd); - - return rsb_do_trans(); -} - -int rsb_read(const u16 runtime_device_addr, const u8 reg_addr, u8 *data) -{ - struct sunxi_rsb_reg * const rsb = - (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; - int ret; - - writel(RSB_DEVADDR_RUNTIME_ADDR(runtime_device_addr), &rsb->devaddr); - writel(reg_addr, &rsb->addr); - writel(RSB_CMD_BYTE_READ, &rsb->cmd); - - ret = rsb_do_trans(); - if (ret) - return ret; - - *data = readl(&rsb->data) & 0xff; - - return 0; -} diff --git a/arch/arm/cpu/armv7/sunxi/usb_phy.c b/arch/arm/cpu/armv7/sunxi/usb_phy.c deleted file mode 100644 index 0749fbdadc..0000000000 --- a/arch/arm/cpu/armv7/sunxi/usb_phy.c +++ /dev/null @@ -1,356 +0,0 @@ -/* - * Sunxi usb-phy code - * - * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com> - * Copyright (C) 2014 Roman Byshko <rbyshko@gmail.com> - * - * Based on code from - * Allwinner Technology Co., Ltd. <www.allwinnertech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/arch/clock.h> -#include <asm/arch/cpu.h> -#include <asm/arch/usb_phy.h> -#include <asm/gpio.h> -#include <asm/io.h> -#include <errno.h> - -#define SUNXI_USB_PMU_IRQ_ENABLE 0x800 -#ifdef CONFIG_MACH_SUN8I_A33 -#define SUNXI_USB_CSR 0x410 -#else -#define SUNXI_USB_CSR 0x404 -#endif -#define SUNXI_USB_PASSBY_EN 1 - -#define SUNXI_EHCI_AHB_ICHR8_EN (1 << 10) -#define SUNXI_EHCI_AHB_INCR4_BURST_EN (1 << 9) -#define SUNXI_EHCI_AHB_INCRX_ALIGN_EN (1 << 8) -#define SUNXI_EHCI_ULPI_BYPASS_EN (1 << 0) - -#define REG_PHY_UNK_H3 0x420 -#define REG_PMU_UNK_H3 0x810 - -static struct sunxi_usb_phy { - int usb_rst_mask; - int gpio_vbus; - int gpio_vbus_det; - int gpio_id_det; - int id; - int init_count; - int power_on_count; - int base; -} sunxi_usb_phy[] = { - { - .usb_rst_mask = CCM_USB_CTRL_PHY0_RST | CCM_USB_CTRL_PHY0_CLK, - .id = 0, - .base = SUNXI_USB0_BASE, - }, - { - .usb_rst_mask = CCM_USB_CTRL_PHY1_RST | CCM_USB_CTRL_PHY1_CLK, - .id = 1, - .base = SUNXI_USB1_BASE, - }, -#if CONFIG_SUNXI_USB_PHYS >= 3 - { - .usb_rst_mask = CCM_USB_CTRL_PHY2_RST | CCM_USB_CTRL_PHY2_CLK, - .id = 2, - .base = SUNXI_USB2_BASE, - }, -#endif -#if CONFIG_SUNXI_USB_PHYS >= 4 - { - .usb_rst_mask = CCM_USB_CTRL_PHY3_RST | CCM_USB_CTRL_PHY3_CLK, - .id = 3, - .base = SUNXI_USB3_BASE, - } -#endif -}; - -static int get_vbus_gpio(int index) -{ - switch (index) { - case 0: return sunxi_name_to_gpio(CONFIG_USB0_VBUS_PIN); - case 1: return sunxi_name_to_gpio(CONFIG_USB1_VBUS_PIN); - case 2: return sunxi_name_to_gpio(CONFIG_USB2_VBUS_PIN); - case 3: return sunxi_name_to_gpio(CONFIG_USB3_VBUS_PIN); - } - return -EINVAL; -} - -static int get_vbus_detect_gpio(int index) -{ - switch (index) { - case 0: return sunxi_name_to_gpio(CONFIG_USB0_VBUS_DET); - } - return -EINVAL; -} - -static int get_id_detect_gpio(int index) -{ - switch (index) { - case 0: return sunxi_name_to_gpio(CONFIG_USB0_ID_DET); - } - return -EINVAL; -} - -static void usb_phy_write(struct sunxi_usb_phy *phy, int addr, - int data, int len) -{ - int j = 0, usbc_bit = 0; - void *dest = (void *)SUNXI_USB0_BASE + SUNXI_USB_CSR; - -#ifdef CONFIG_MACH_SUN8I_A33 - /* CSR needs to be explicitly initialized to 0 on A33 */ - writel(0, dest); -#endif - - usbc_bit = 1 << (phy->id * 2); - for (j = 0; j < len; j++) { - /* set the bit address to be written */ - clrbits_le32(dest, 0xff << 8); - setbits_le32(dest, (addr + j) << 8); - - clrbits_le32(dest, usbc_bit); - /* set data bit */ - if (data & 0x1) - setbits_le32(dest, 1 << 7); - else - clrbits_le32(dest, 1 << 7); - - setbits_le32(dest, usbc_bit); - - clrbits_le32(dest, usbc_bit); - - data >>= 1; - } -} - -#if defined CONFIG_MACH_SUN8I_H3 -static void sunxi_usb_phy_config(struct sunxi_usb_phy *phy) -{ - if (phy->id == 0) - clrbits_le32(SUNXI_USBPHY_BASE + REG_PHY_UNK_H3, 0x01); - - clrbits_le32(phy->base + REG_PMU_UNK_H3, 0x02); -} -#else -static void sunxi_usb_phy_config(struct sunxi_usb_phy *phy) -{ - /* The following comments are machine - * translated from Chinese, you have been warned! - */ - - /* Regulation 45 ohms */ - if (phy->id == 0) - usb_phy_write(phy, 0x0c, 0x01, 1); - - /* adjust PHY's magnitude and rate */ - usb_phy_write(phy, 0x20, 0x14, 5); - - /* threshold adjustment disconnect */ -#if defined CONFIG_MACH_SUN5I || defined CONFIG_MACH_SUN7I - usb_phy_write(phy, 0x2a, 2, 2); -#else - usb_phy_write(phy, 0x2a, 3, 2); -#endif - - return; -} -#endif - -static void sunxi_usb_phy_passby(struct sunxi_usb_phy *phy, int enable) -{ - unsigned long bits = 0; - void *addr; - - addr = (void *)phy->base + SUNXI_USB_PMU_IRQ_ENABLE; - - bits = SUNXI_EHCI_AHB_ICHR8_EN | - SUNXI_EHCI_AHB_INCR4_BURST_EN | - SUNXI_EHCI_AHB_INCRX_ALIGN_EN | - SUNXI_EHCI_ULPI_BYPASS_EN; - - if (enable) - setbits_le32(addr, bits); - else - clrbits_le32(addr, bits); - - return; -} - -void sunxi_usb_phy_enable_squelch_detect(int index, int enable) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - - usb_phy_write(phy, 0x3c, enable ? 0 : 2, 2); -} - -void sunxi_usb_phy_init(int index) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - phy->init_count++; - if (phy->init_count != 1) - return; - - setbits_le32(&ccm->usb_clk_cfg, phy->usb_rst_mask); - - sunxi_usb_phy_config(phy); - - if (phy->id != 0) - sunxi_usb_phy_passby(phy, SUNXI_USB_PASSBY_EN); -} - -void sunxi_usb_phy_exit(int index) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - phy->init_count--; - if (phy->init_count != 0) - return; - - if (phy->id != 0) - sunxi_usb_phy_passby(phy, !SUNXI_USB_PASSBY_EN); - - clrbits_le32(&ccm->usb_clk_cfg, phy->usb_rst_mask); -} - -void sunxi_usb_phy_power_on(int index) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - - phy->power_on_count++; - if (phy->power_on_count != 1) - return; - - if (phy->gpio_vbus >= 0) - gpio_set_value(phy->gpio_vbus, 1); -} - -void sunxi_usb_phy_power_off(int index) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - - phy->power_on_count--; - if (phy->power_on_count != 0) - return; - - if (phy->gpio_vbus >= 0) - gpio_set_value(phy->gpio_vbus, 0); -} - -int sunxi_usb_phy_power_is_on(int index) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - - return phy->power_on_count > 0; -} - -int sunxi_usb_phy_vbus_detect(int index) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - int err, retries = 3; - - if (phy->gpio_vbus_det < 0) - return phy->gpio_vbus_det; - - err = gpio_get_value(phy->gpio_vbus_det); - /* - * Vbus may have been provided by the board and just been turned of - * some milliseconds ago on reset, what we're measuring then is a - * residual charge on Vbus, sleep a bit and try again. - */ - while (err > 0 && retries--) { - mdelay(100); - err = gpio_get_value(phy->gpio_vbus_det); - } - - return err; -} - -int sunxi_usb_phy_id_detect(int index) -{ - struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; - - if (phy->gpio_id_det < 0) - return phy->gpio_id_det; - - return gpio_get_value(phy->gpio_id_det); -} - -int sunxi_usb_phy_probe(void) -{ - struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - struct sunxi_usb_phy *phy; - int i, ret = 0; - - for (i = 0; i < CONFIG_SUNXI_USB_PHYS; i++) { - phy = &sunxi_usb_phy[i]; - - phy->gpio_vbus = get_vbus_gpio(i); - if (phy->gpio_vbus >= 0) { - ret = gpio_request(phy->gpio_vbus, "usb_vbus"); - if (ret) - return ret; - ret = gpio_direction_output(phy->gpio_vbus, 0); - if (ret) - return ret; - } - - phy->gpio_vbus_det = get_vbus_detect_gpio(i); - if (phy->gpio_vbus_det >= 0) { - ret = gpio_request(phy->gpio_vbus_det, "usb_vbus_det"); - if (ret) - return ret; - ret = gpio_direction_input(phy->gpio_vbus_det); - if (ret) - return ret; - } - - phy->gpio_id_det = get_id_detect_gpio(i); - if (phy->gpio_id_det >= 0) { - ret = gpio_request(phy->gpio_id_det, "usb_id_det"); - if (ret) - return ret; - ret = gpio_direction_input(phy->gpio_id_det); - if (ret) - return ret; - sunxi_gpio_set_pull(phy->gpio_id_det, - SUNXI_GPIO_PULL_UP); - } - } - - setbits_le32(&ccm->usb_clk_cfg, CCM_USB_CTRL_PHYGATE); - - return 0; -} - -int sunxi_usb_phy_remove(void) -{ - struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - struct sunxi_usb_phy *phy; - int i; - - clrbits_le32(&ccm->usb_clk_cfg, CCM_USB_CTRL_PHYGATE); - - for (i = 0; i < CONFIG_SUNXI_USB_PHYS; i++) { - phy = &sunxi_usb_phy[i]; - - if (phy->gpio_vbus >= 0) - gpio_free(phy->gpio_vbus); - - if (phy->gpio_vbus_det >= 0) - gpio_free(phy->gpio_vbus_det); - - if (phy->gpio_id_det >= 0) - gpio_free(phy->gpio_id_det); - } - - return 0; -} |