diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap3')
| -rw-r--r-- | arch/arm/mach-omap2/omap3/Kconfig | 154 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/Makefile | 21 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/am35x_musb.c | 61 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/board.c | 434 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/boot.c | 104 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/clock.c | 799 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/emac.c | 29 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/emif4.c | 165 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/lowlevel_init.S | 476 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/sdrc.c | 241 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/spl_id_nand.c | 57 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap3/sys_info.c | 343 |
12 files changed, 2884 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap3/Kconfig b/arch/arm/mach-omap2/omap3/Kconfig new file mode 100644 index 0000000000..7d884a237b --- /dev/null +++ b/arch/arm/mach-omap2/omap3/Kconfig @@ -0,0 +1,154 @@ +if OMAP34XX + +config SPL_EXT_SUPPORT + default y + +config SPL_FAT_SUPPORT + default y + +config SPL_GPIO_SUPPORT + default y + +config SPL_I2C_SUPPORT + default y + +config SPL_LIBCOMMON_SUPPORT + default y + +config SPL_LIBDISK_SUPPORT + default y + +config SPL_LIBGENERIC_SUPPORT + default y + +config SPL_MMC_SUPPORT + default y + +config SPL_NAND_SUPPORT + default y + +config SPL_POWER_SUPPORT + default y + +config SPL_SERIAL_SUPPORT + default y + +choice + prompt "OMAP3 board select" + optional + +config TARGET_AM3517_EVM + bool "AM3517 EVM" + +config TARGET_MT_VENTOUX + bool "TeeJet Mt.Ventoux" + +config TARGET_OMAP3_BEAGLE + bool "TI OMAP3 BeagleBoard" + select DM + select DM_SERIAL + select DM_GPIO + +config TARGET_CM_T35 + bool "CompuLab CM-T3530 and CM-T3730 boards" + +config TARGET_CM_T3517 + bool "CompuLab CM-T3517 boards" + +config TARGET_DEVKIT8000 + bool "TimLL OMAP3 Devkit8000" + select DM + select DM_SERIAL + select DM_GPIO + +config TARGET_OMAP3_EVM + bool "TI OMAP3 EVM" + +config TARGET_OMAP3_IGEP00X0 + bool "IGEP" + select DM + select DM_SERIAL + select DM_GPIO + +config TARGET_OMAP3_OVERO + bool "OMAP35xx Gumstix Overo" + select DM + select DM_SERIAL + select DM_GPIO + +config TARGET_OMAP3_ZOOM1 + bool "TI Zoom1" + select DM + select DM_SERIAL + select DM_GPIO + +config TARGET_AM3517_CRANE + bool "am3517_crane" + +config TARGET_OMAP3_PANDORA + bool "OMAP3 Pandora" + +config TARGET_ECO5PK + bool "ECO5PK" + +config TARGET_TRICORDER + bool "Tricorder" + +config TARGET_MCX + bool "MCX" + +config TARGET_OMAP3_LOGIC + bool "OMAP3 Logic" + select DM + select DM_SERIAL + select DM_GPIO + +config TARGET_NOKIA_RX51 + bool "Nokia RX51" + +config TARGET_TAO3530 + bool "TAO3530" + +config TARGET_TWISTER + bool "Twister" + +config TARGET_OMAP3_CAIRO + bool "QUIPOS CAIRO" + select DM + select DM_SERIAL + select DM_GPIO + +config TARGET_SNIPER + bool "LG Optimus Black" + select DM + select DM_SERIAL + select DM_GPIO + +endchoice + +config SYS_SOC + default "omap3" + +source "board/logicpd/am3517evm/Kconfig" +source "board/teejet/mt_ventoux/Kconfig" +source "board/ti/beagle/Kconfig" +source "board/compulab/cm_t35/Kconfig" +source "board/compulab/cm_t3517/Kconfig" +source "board/timll/devkit8000/Kconfig" +source "board/ti/evm/Kconfig" +source "board/isee/igep00x0/Kconfig" +source "board/overo/Kconfig" +source "board/logicpd/zoom1/Kconfig" +source "board/ti/am3517crane/Kconfig" +source "board/pandora/Kconfig" +source "board/8dtech/eco5pk/Kconfig" +source "board/corscience/tricorder/Kconfig" +source "board/htkw/mcx/Kconfig" +source "board/logicpd/omap3som/Kconfig" +source "board/nokia/rx51/Kconfig" +source "board/technexion/tao3530/Kconfig" +source "board/technexion/twister/Kconfig" +source "board/quipos/cairo/Kconfig" +source "board/lg/sniper/Kconfig" + +endif diff --git a/arch/arm/mach-omap2/omap3/Makefile b/arch/arm/mach-omap2/omap3/Makefile new file mode 100644 index 0000000000..b2fce966d9 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/Makefile @@ -0,0 +1,21 @@ +# +# (C) Copyright 2000-2003 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := lowlevel_init.o + +obj-y += board.o +obj-y += boot.o +obj-y += clock.o +obj-y += sys_info.o +ifdef CONFIG_SPL_BUILD +obj-$(CONFIG_SPL_OMAP3_ID_NAND) += spl_id_nand.o +endif + +obj-$(CONFIG_DRIVER_TI_EMAC) += emac.o +obj-$(CONFIG_EMIF4) += emif4.o +obj-$(CONFIG_SDRC) += sdrc.o +obj-$(CONFIG_USB_MUSB_AM35X) += am35x_musb.o diff --git a/arch/arm/mach-omap2/omap3/am35x_musb.c b/arch/arm/mach-omap2/omap3/am35x_musb.c new file mode 100644 index 0000000000..74dd105eb6 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/am35x_musb.c @@ -0,0 +1,61 @@ +/* + * This file configures the internal USB PHY in AM35X. + * + * Copyright (C) 2012 Ilya Yanok <ilya.yanok@gmail.com> + * + * Based on omap_phy_internal.c code from Linux by + * Hema HK <hemahk@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/am35x_def.h> + +void am35x_musb_reset(void) +{ + /* Reset the musb interface */ + clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset, + 0, USBOTGSS_SW_RST); + clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset, + USBOTGSS_SW_RST, 0); +} + +void am35x_musb_phy_power(u8 on) +{ + unsigned long start = get_timer(0); + + if (on) { + /* + * Start the on-chip PHY and its PLL. + */ + clrsetbits_le32(&am35x_scm_general_regs->devconf2, + CONF2_RESET | CONF2_PHYPWRDN | CONF2_OTGPWRDN, + CONF2_PHY_PLLON); + + debug("Waiting for PHY clock good...\n"); + while (!(readl(&am35x_scm_general_regs->devconf2) + & CONF2_PHYCLKGD)) { + + if (get_timer(start) > CONFIG_SYS_HZ / 10) { + printf("musb PHY clock good timed out\n"); + break; + } + } + } else { + /* + * Power down the on-chip PHY. + */ + clrsetbits_le32(&am35x_scm_general_regs->devconf2, + CONF2_PHY_PLLON, + CONF2_PHYPWRDN | CONF2_OTGPWRDN); + } +} + +void am35x_musb_clear_irq(void) +{ + clrsetbits_le32(&am35x_scm_general_regs->lvl_intr_clr, + 0, USBOTGSS_INT_CLR); + readl(&am35x_scm_general_regs->lvl_intr_clr); +} diff --git a/arch/arm/mach-omap2/omap3/board.c b/arch/arm/mach-omap2/omap3/board.c new file mode 100644 index 0000000000..5f5597772b --- /dev/null +++ b/arch/arm/mach-omap2/omap3/board.c @@ -0,0 +1,434 @@ +/* + * + * Common board functions for OMAP3 based boards. + * + * (C) Copyright 2004-2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Sunil Kumar <sunilsaini05@gmail.com> + * Shashi Ranjan <shashiranjanmca05@gmail.com> + * + * Derived from Beagle Board and 3430 SDP code by + * Richard Woodruff <r-woodruff2@ti.com> + * Syed Mohammed Khasim <khasim@ti.com> + * + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <dm.h> +#include <spl.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/mem.h> +#include <asm/cache.h> +#include <asm/armv7.h> +#include <asm/gpio.h> +#include <asm/omap_common.h> +#include <linux/compiler.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Declarations */ +extern omap3_sysinfo sysinfo; +#ifndef CONFIG_SYS_L2CACHE_OFF +static void omap3_invalidate_l2_cache_secure(void); +#endif + +#ifdef CONFIG_DM_GPIO +static const struct omap_gpio_platdata omap34xx_gpio[] = { + { 0, OMAP34XX_GPIO1_BASE }, + { 1, OMAP34XX_GPIO2_BASE }, + { 2, OMAP34XX_GPIO3_BASE }, + { 3, OMAP34XX_GPIO4_BASE }, + { 4, OMAP34XX_GPIO5_BASE }, + { 5, OMAP34XX_GPIO6_BASE }, +}; + +U_BOOT_DEVICES(am33xx_gpios) = { + { "gpio_omap", &omap34xx_gpio[0] }, + { "gpio_omap", &omap34xx_gpio[1] }, + { "gpio_omap", &omap34xx_gpio[2] }, + { "gpio_omap", &omap34xx_gpio[3] }, + { "gpio_omap", &omap34xx_gpio[4] }, + { "gpio_omap", &omap34xx_gpio[5] }, +}; + +#else + +static const struct gpio_bank gpio_bank_34xx[6] = { + { (void *)OMAP34XX_GPIO1_BASE }, + { (void *)OMAP34XX_GPIO2_BASE }, + { (void *)OMAP34XX_GPIO3_BASE }, + { (void *)OMAP34XX_GPIO4_BASE }, + { (void *)OMAP34XX_GPIO5_BASE }, + { (void *)OMAP34XX_GPIO6_BASE }, +}; + +const struct gpio_bank *const omap_gpio_bank = gpio_bank_34xx; + +#endif + +/****************************************************************************** + * Routine: secure_unlock + * Description: Setup security registers for access + * (GP Device only) + *****************************************************************************/ +void secure_unlock_mem(void) +{ + struct pm *pm_rt_ape_base = (struct pm *)PM_RT_APE_BASE_ADDR_ARM; + struct pm *pm_gpmc_base = (struct pm *)PM_GPMC_BASE_ADDR_ARM; + struct pm *pm_ocm_ram_base = (struct pm *)PM_OCM_RAM_BASE_ADDR_ARM; + struct pm *pm_iva2_base = (struct pm *)PM_IVA2_BASE_ADDR_ARM; + struct sms *sms_base = (struct sms *)OMAP34XX_SMS_BASE; + + /* Protection Module Register Target APE (PM_RT) */ + writel(UNLOCK_1, &pm_rt_ape_base->req_info_permission_1); + writel(UNLOCK_1, &pm_rt_ape_base->read_permission_0); + writel(UNLOCK_1, &pm_rt_ape_base->wirte_permission_0); + writel(UNLOCK_2, &pm_rt_ape_base->addr_match_1); + + writel(UNLOCK_3, &pm_gpmc_base->req_info_permission_0); + writel(UNLOCK_3, &pm_gpmc_base->read_permission_0); + writel(UNLOCK_3, &pm_gpmc_base->wirte_permission_0); + + writel(UNLOCK_3, &pm_ocm_ram_base->req_info_permission_0); + writel(UNLOCK_3, &pm_ocm_ram_base->read_permission_0); + writel(UNLOCK_3, &pm_ocm_ram_base->wirte_permission_0); + writel(UNLOCK_2, &pm_ocm_ram_base->addr_match_2); + + /* IVA Changes */ + writel(UNLOCK_3, &pm_iva2_base->req_info_permission_0); + writel(UNLOCK_3, &pm_iva2_base->read_permission_0); + writel(UNLOCK_3, &pm_iva2_base->wirte_permission_0); + + /* SDRC region 0 public */ + writel(UNLOCK_1, &sms_base->rg_att0); +} + +/****************************************************************************** + * Routine: secureworld_exit() + * Description: If chip is EMU and boot type is external + * configure secure registers and exit secure world + * general use. + *****************************************************************************/ +void secureworld_exit(void) +{ + unsigned long i; + + /* configure non-secure access control register */ + __asm__ __volatile__("mrc p15, 0, %0, c1, c1, 2":"=r"(i)); + /* enabling co-processor CP10 and CP11 accesses in NS world */ + __asm__ __volatile__("orr %0, %0, #0xC00":"=r"(i)); + /* + * allow allocation of locked TLBs and L2 lines in NS world + * allow use of PLE registers in NS world also + */ + __asm__ __volatile__("orr %0, %0, #0x70000":"=r"(i)); + __asm__ __volatile__("mcr p15, 0, %0, c1, c1, 2":"=r"(i)); + + /* Enable ASA in ACR register */ + __asm__ __volatile__("mrc p15, 0, %0, c1, c0, 1":"=r"(i)); + __asm__ __volatile__("orr %0, %0, #0x10":"=r"(i)); + __asm__ __volatile__("mcr p15, 0, %0, c1, c0, 1":"=r"(i)); + + /* Exiting secure world */ + __asm__ __volatile__("mrc p15, 0, %0, c1, c1, 0":"=r"(i)); + __asm__ __volatile__("orr %0, %0, #0x31":"=r"(i)); + __asm__ __volatile__("mcr p15, 0, %0, c1, c1, 0":"=r"(i)); +} + +/****************************************************************************** + * Routine: try_unlock_sram() + * Description: If chip is GP/EMU(special) type, unlock the SRAM for + * general use. + *****************************************************************************/ +void try_unlock_memory(void) +{ + int mode; + int in_sdram = is_running_in_sdram(); + + /* + * if GP device unlock device SRAM for general use + * secure code breaks for Secure/Emulation device - HS/E/T + */ + mode = get_device_type(); + if (mode == GP_DEVICE) + secure_unlock_mem(); + + /* + * If device is EMU and boot is XIP external booting + * Unlock firewalls and disable L2 and put chip + * out of secure world + * + * Assuming memories are unlocked by the demon who put us in SDRAM + */ + if ((mode <= EMU_DEVICE) && (get_boot_type() == 0x1F) + && (!in_sdram)) { + secure_unlock_mem(); + secureworld_exit(); + } + + return; +} + +/****************************************************************************** + * Routine: s_init + * Description: Does early system init of muxing and clocks. + * - Called path is with SRAM stack. + *****************************************************************************/ +void s_init(void) +{ + watchdog_init(); + + try_unlock_memory(); + +#ifndef CONFIG_SYS_L2CACHE_OFF + /* Invalidate L2-cache from secure mode */ + omap3_invalidate_l2_cache_secure(); +#endif + + set_muxconf_regs(); + sdelay(100); + + prcm_init(); + + per_clocks_enable(); + +#ifdef CONFIG_USB_EHCI_OMAP + ehci_clocks_enable(); +#endif +} + +#ifdef CONFIG_SPL_BUILD +void board_init_f(ulong dummy) +{ + mem_init(); +} +#endif + +/* + * Routine: misc_init_r + * Description: A basic misc_init_r that just displays the die ID + */ +int __weak misc_init_r(void) +{ + omap_die_id_display(); + + return 0; +} + +/****************************************************************************** + * Routine: wait_for_command_complete + * Description: Wait for posting to finish on watchdog + *****************************************************************************/ +static void wait_for_command_complete(struct watchdog *wd_base) +{ + int pending = 1; + do { + pending = readl(&wd_base->wwps); + } while (pending); +} + +/****************************************************************************** + * Routine: watchdog_init + * Description: Shut down watch dogs + *****************************************************************************/ +void watchdog_init(void) +{ + struct watchdog *wd2_base = (struct watchdog *)WD2_BASE; + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + + /* + * There are 3 watch dogs WD1=Secure, WD2=MPU, WD3=IVA. WD1 is + * either taken care of by ROM (HS/EMU) or not accessible (GP). + * We need to take care of WD2-MPU or take a PRCM reset. WD3 + * should not be running and does not generate a PRCM reset. + */ + + setbits_le32(&prcm_base->fclken_wkup, 0x20); + setbits_le32(&prcm_base->iclken_wkup, 0x20); + wait_on_value(ST_WDT2, 0x20, &prcm_base->idlest_wkup, 5); + + writel(WD_UNLOCK1, &wd2_base->wspr); + wait_for_command_complete(wd2_base); + writel(WD_UNLOCK2, &wd2_base->wspr); +} + +/****************************************************************************** + * Dummy function to handle errors for EABI incompatibility + *****************************************************************************/ +void abort(void) +{ +} + +#if defined(CONFIG_NAND_OMAP_GPMC) & !defined(CONFIG_SPL_BUILD) +/****************************************************************************** + * OMAP3 specific command to switch between NAND HW and SW ecc + *****************************************************************************/ +static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + if (argc < 2 || argc > 3) + goto usage; + + if (strncmp(argv[1], "hw", 2) == 0) { + if (argc == 2) { + omap_nand_switch_ecc(1, 1); + } else { + if (strncmp(argv[2], "hamming", 7) == 0) + omap_nand_switch_ecc(1, 1); + else if (strncmp(argv[2], "bch8", 4) == 0) + omap_nand_switch_ecc(1, 8); + else if (strncmp(argv[2], "bch16", 5) == 0) + omap_nand_switch_ecc(1, 16); + else + goto usage; + } + } else if (strncmp(argv[1], "sw", 2) == 0) { + if (argc == 2) { + omap_nand_switch_ecc(0, 1); + } else { + if (strncmp(argv[2], "hamming", 7) == 0) + omap_nand_switch_ecc(0, 1); + else if (strncmp(argv[2], "bch8", 4) == 0) + omap_nand_switch_ecc(0, 8); + else + goto usage; + } + } else { + goto usage; + } + + return 0; + +usage: + printf ("Usage: nandecc %s\n", cmdtp->usage); + return 1; +} + +U_BOOT_CMD( + nandecc, 3, 1, do_switch_ecc, + "switch OMAP3 NAND ECC calculation algorithm", + "hw [hamming|bch8|bch16] - Switch between NAND hardware 1-bit hamming" + " and 8-bit/16-bit BCH\n" + " ecc calculation (second parameter may" + " be omitted).\n" + "nandecc sw - Switch to NAND software ecc algorithm." +); + +#endif /* CONFIG_NAND_OMAP_GPMC & !CONFIG_SPL_BUILD */ + +#ifdef CONFIG_DISPLAY_BOARDINFO +/** + * Print board information + */ +int checkboard (void) +{ + char *mem_s ; + + if (is_mem_sdr()) + mem_s = "mSDR"; + else + mem_s = "LPDDR"; + + printf("%s + %s/%s\n", sysinfo.board_string, mem_s, + sysinfo.nand_string); + + return 0; +} +#endif /* CONFIG_DISPLAY_BOARDINFO */ + +static void omap3_emu_romcode_call(u32 service_id, u32 *parameters) +{ + u32 i, num_params = *parameters; + u32 *sram_scratch_space = (u32 *)OMAP3_PUBLIC_SRAM_SCRATCH_AREA; + + /* + * copy the parameters to an un-cached area to avoid coherency + * issues + */ + for (i = 0; i < num_params; i++) { + __raw_writel(*parameters, sram_scratch_space); + parameters++; + sram_scratch_space++; + } + + /* Now make the PPA call */ + do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA); +} + +void __weak omap3_set_aux_cr_secure(u32 acr) +{ + struct emu_hal_params emu_romcode_params; + + emu_romcode_params.num_params = 1; + emu_romcode_params.param1 = acr; + omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR, + (u32 *)&emu_romcode_params); +} + +void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb, + u32 cpu_variant, u32 cpu_rev) +{ + /* Write ACR - affects secure banked bits */ + if (get_device_type() == GP_DEVICE) + omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_ACR, acr); + else + omap3_set_aux_cr_secure(acr); + + /* Write ACR - affects non-secure banked bits - some erratas need it */ + asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (acr)); +} + + +#ifndef CONFIG_SYS_L2CACHE_OFF +static void omap3_update_aux_cr(u32 set_bits, u32 clear_bits) +{ + u32 acr; + + /* Read ACR */ + asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr)); + acr &= ~clear_bits; + acr |= set_bits; + v7_arch_cp15_set_acr(acr, 0, 0, 0, 0); + +} + +/* Invalidate the entire L2 cache from secure mode */ +static void omap3_invalidate_l2_cache_secure(void) +{ + if (get_device_type() == GP_DEVICE) { + omap_smc1(OMAP3_GP_ROMCODE_API_L2_INVAL, 0); + } else { + struct emu_hal_params emu_romcode_params; + emu_romcode_params.num_params = 1; + emu_romcode_params.param1 = 0; + omap3_emu_romcode_call(OMAP3_EMU_HAL_API_L2_INVAL, + (u32 *)&emu_romcode_params); + } +} + +void v7_outer_cache_enable(void) +{ + + /* + * Set L2EN + * On some revisions L2EN bit is banked on some revisions it's not + * No harm in setting both banked bits(in fact this is required + * by an erratum) + */ + omap3_update_aux_cr(0x2, 0); +} + +void omap3_outer_cache_disable(void) +{ + /* + * Clear L2EN + * On some revisions L2EN bit is banked on some revisions it's not + * No harm in clearing both banked bits(in fact this is required + * by an erratum) + */ + omap3_update_aux_cr(0, 0x2); +} +#endif /* !CONFIG_SYS_L2CACHE_OFF */ diff --git a/arch/arm/mach-omap2/omap3/boot.c b/arch/arm/mach-omap2/omap3/boot.c new file mode 100644 index 0000000000..64b242b752 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/boot.c @@ -0,0 +1,104 @@ +/* + * OMAP3 boot + * + * Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <spl.h> + +static u32 boot_devices[] = { + BOOT_DEVICE_ONENAND, + BOOT_DEVICE_NAND, + BOOT_DEVICE_ONENAND, + BOOT_DEVICE_MMC2, + BOOT_DEVICE_ONENAND, + BOOT_DEVICE_MMC2, + BOOT_DEVICE_MMC1, + BOOT_DEVICE_XIP, + BOOT_DEVICE_XIPWAIT, + BOOT_DEVICE_MMC2, + BOOT_DEVICE_XIP, + BOOT_DEVICE_XIPWAIT, + BOOT_DEVICE_NAND, + BOOT_DEVICE_XIP, + BOOT_DEVICE_XIPWAIT, + BOOT_DEVICE_NAND, + BOOT_DEVICE_ONENAND, + BOOT_DEVICE_MMC2, + BOOT_DEVICE_MMC1, + BOOT_DEVICE_XIP, + BOOT_DEVICE_XIPWAIT, + BOOT_DEVICE_NAND, + BOOT_DEVICE_ONENAND, + BOOT_DEVICE_MMC2, + BOOT_DEVICE_MMC1, + BOOT_DEVICE_XIP, + BOOT_DEVICE_XIPWAIT, + BOOT_DEVICE_NAND, + BOOT_DEVICE_MMC2_2, +}; + +u32 omap_sys_boot_device(void) +{ + struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; + u32 sys_boot; + + /* Grab the first 5 bits of the status register for SYS_BOOT. */ + sys_boot = readl(&ctrl_base->status) & ((1 << 5) - 1); + + if (sys_boot >= (sizeof(boot_devices) / sizeof(u32))) + return BOOT_DEVICE_NONE; + + return boot_devices[sys_boot]; +} + +int omap_reboot_mode(char *mode, unsigned int length) +{ + u32 reboot_mode; + char c; + + if (length < 2) + return -1; + + reboot_mode = readl((u32 *)(OMAP34XX_SCRATCHPAD + + OMAP_REBOOT_REASON_OFFSET)); + + c = (reboot_mode >> 24) & 0xff; + if (c != 'B') + return -1; + + c = (reboot_mode >> 16) & 0xff; + if (c != 'M') + return -1; + + c = reboot_mode & 0xff; + + mode[0] = c; + mode[1] = '\0'; + + return 0; +} + +int omap_reboot_mode_clear(void) +{ + writel(0, (u32 *)(OMAP34XX_SCRATCHPAD + OMAP_REBOOT_REASON_OFFSET)); + + return 0; +} + +int omap_reboot_mode_store(char *mode) +{ + u32 reboot_mode; + + reboot_mode = 'B' << 24 | 'M' << 16 | mode[0]; + + writel(reboot_mode, (u32 *)(OMAP34XX_SCRATCHPAD + + OMAP_REBOOT_REASON_OFFSET)); + + return 0; +} diff --git a/arch/arm/mach-omap2/omap3/clock.c b/arch/arm/mach-omap2/omap3/clock.c new file mode 100644 index 0000000000..006969e780 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/clock.c @@ -0,0 +1,799 @@ +/* + * (C) Copyright 2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Manikandan Pillai <mani.pillai@ti.com> + * + * Derived from Beagle Board and OMAP3 SDP code by + * Richard Woodruff <r-woodruff2@ti.com> + * Syed Mohammed Khasim <khasim@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/clocks_omap3.h> +#include <asm/arch/mem.h> +#include <asm/arch/sys_proto.h> +#include <environment.h> +#include <command.h> + +/****************************************************************************** + * get_sys_clk_speed() - determine reference oscillator speed + * based on known 32kHz clock and gptimer. + *****************************************************************************/ +u32 get_osc_clk_speed(void) +{ + u32 start, cstart, cend, cdiff, cdiv, val; + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + struct prm *prm_base = (struct prm *)PRM_BASE; + struct gptimer *gpt1_base = (struct gptimer *)OMAP34XX_GPT1; + struct s32ktimer *s32k_base = (struct s32ktimer *)SYNC_32KTIMER_BASE; + + val = readl(&prm_base->clksrc_ctrl); + + if (val & SYSCLKDIV_2) + cdiv = 2; + else + cdiv = 1; + + /* enable timer2 */ + val = readl(&prcm_base->clksel_wkup) | CLKSEL_GPT1; + + /* select sys_clk for GPT1 */ + writel(val, &prcm_base->clksel_wkup); + + /* Enable I and F Clocks for GPT1 */ + val = readl(&prcm_base->iclken_wkup) | EN_GPT1 | EN_32KSYNC; + writel(val, &prcm_base->iclken_wkup); + + val = readl(&prcm_base->fclken_wkup) | EN_GPT1; + writel(val, &prcm_base->fclken_wkup); + + writel(0, &gpt1_base->tldr); /* start counting at 0 */ + writel(GPT_EN, &gpt1_base->tclr); /* enable clock */ + + /* enable 32kHz source, determine sys_clk via gauging */ + + /* start time in 20 cycles */ + start = 20 + readl(&s32k_base->s32k_cr); + + /* dead loop till start time */ + while (readl(&s32k_base->s32k_cr) < start); + + /* get start sys_clk count */ + cstart = readl(&gpt1_base->tcrr); + + /* wait for 40 cycles */ + while (readl(&s32k_base->s32k_cr) < (start + 20)) ; + cend = readl(&gpt1_base->tcrr); /* get end sys_clk count */ + cdiff = cend - cstart; /* get elapsed ticks */ + cdiff *= cdiv; + + /* based on number of ticks assign speed */ + if (cdiff > 19000) + return S38_4M; + else if (cdiff > 15200) + return S26M; + else if (cdiff > 13000) + return S24M; + else if (cdiff > 9000) + return S19_2M; + else if (cdiff > 7600) + return S13M; + else + return S12M; +} + +/****************************************************************************** + * get_sys_clkin_sel() - returns the sys_clkin_sel field value based on + * input oscillator clock frequency. + *****************************************************************************/ +void get_sys_clkin_sel(u32 osc_clk, u32 *sys_clkin_sel) +{ + switch(osc_clk) { + case S38_4M: + *sys_clkin_sel = 4; + break; + case S26M: + *sys_clkin_sel = 3; + break; + case S19_2M: + *sys_clkin_sel = 2; + break; + case S13M: + *sys_clkin_sel = 1; + break; + case S12M: + default: + *sys_clkin_sel = 0; + } +} + +/* + * OMAP34XX/35XX specific functions + */ + +static void dpll3_init_34xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_core_dpll_param(); + void (*f_lock_pll) (u32, u32, u32, u32); + int xip_safe, p0, p1, p2, p3; + + xip_safe = is_running_in_sram(); + + /* Moving to the right sysclk and ES rev base */ + ptr = ptr + (3 * clk_index) + sil_index; + + if (xip_safe) { + /* + * CORE DPLL + */ + clrsetbits_le32(&prcm_base->clken_pll, + 0x00000007, PLL_FAST_RELOCK_BYPASS); + wait_on_value(ST_CORE_CLK, 0, &prcm_base->idlest_ckgen, + LDELAY); + + /* + * For OMAP3 ES1.0 Errata 1.50, default value directly doesn't + * work. write another value and then default value. + */ + + /* CM_CLKSEL1_EMU[DIV_DPLL3] */ + clrsetbits_le32(&prcm_base->clksel1_emu, + 0x001F0000, (CORE_M3X2 + 1) << 16) ; + clrsetbits_le32(&prcm_base->clksel1_emu, + 0x001F0000, CORE_M3X2 << 16); + + /* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */ + clrsetbits_le32(&prcm_base->clksel1_pll, + 0xF8000000, ptr->m2 << 27); + + /* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */ + clrsetbits_le32(&prcm_base->clksel1_pll, + 0x07FF0000, ptr->m << 16); + + /* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */ + clrsetbits_le32(&prcm_base->clksel1_pll, + 0x00007F00, ptr->n << 8); + + /* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */ + clrbits_le32(&prcm_base->clksel1_pll, 0x00000040); + + /* SSI */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x00000F00, CORE_SSI_DIV << 8); + /* FSUSB */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x00000030, CORE_FUSB_DIV << 4); + /* L4 */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x0000000C, CORE_L4_DIV << 2); + /* L3 */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x00000003, CORE_L3_DIV); + /* GFX */ + clrsetbits_le32(&prcm_base->clksel_gfx, + 0x00000007, GFX_DIV); + /* RESET MGR */ + clrsetbits_le32(&prcm_base->clksel_wkup, + 0x00000006, WKUP_RSM << 1); + /* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */ + clrsetbits_le32(&prcm_base->clken_pll, + 0x000000F0, ptr->fsel << 4); + /* LOCK MODE */ + clrsetbits_le32(&prcm_base->clken_pll, + 0x00000007, PLL_LOCK); + + wait_on_value(ST_CORE_CLK, 1, &prcm_base->idlest_ckgen, + LDELAY); + } else if (is_running_in_flash()) { + /* + * if running from flash, jump to small relocated code + * area in SRAM. + */ + f_lock_pll = (void *) (SRAM_CLK_CODE); + + p0 = readl(&prcm_base->clken_pll); + clrsetbits_le32(&p0, 0x00000007, PLL_FAST_RELOCK_BYPASS); + /* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */ + clrsetbits_le32(&p0, 0x000000F0, ptr->fsel << 4); + + p1 = readl(&prcm_base->clksel1_pll); + /* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */ + clrsetbits_le32(&p1, 0xF8000000, ptr->m2 << 27); + /* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */ + clrsetbits_le32(&p1, 0x07FF0000, ptr->m << 16); + /* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */ + clrsetbits_le32(&p1, 0x00007F00, ptr->n << 8); + /* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */ + clrbits_le32(&p1, 0x00000040); + + p2 = readl(&prcm_base->clksel_core); + /* SSI */ + clrsetbits_le32(&p2, 0x00000F00, CORE_SSI_DIV << 8); + /* FSUSB */ + clrsetbits_le32(&p2, 0x00000030, CORE_FUSB_DIV << 4); + /* L4 */ + clrsetbits_le32(&p2, 0x0000000C, CORE_L4_DIV << 2); + /* L3 */ + clrsetbits_le32(&p2, 0x00000003, CORE_L3_DIV); + + p3 = (u32)&prcm_base->idlest_ckgen; + + (*f_lock_pll) (p0, p1, p2, p3); + } +} + +static void dpll4_init_34xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_per_dpll_param(); + + /* Moving it to the right sysclk base */ + ptr = ptr + clk_index; + + /* EN_PERIPH_DPLL: CM_CLKEN_PLL[16:18] */ + clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_STOP << 16); + wait_on_value(ST_PERIPH_CLK, 0, &prcm_base->idlest_ckgen, LDELAY); + + /* + * Errata 1.50 Workaround for OMAP3 ES1.0 only + * If using default divisors, write default divisor + 1 + * and then the actual divisor value + */ + /* M6 */ + clrsetbits_le32(&prcm_base->clksel1_emu, + 0x1F000000, (PER_M6X2 + 1) << 24); + clrsetbits_le32(&prcm_base->clksel1_emu, + 0x1F000000, PER_M6X2 << 24); + /* M5 */ + clrsetbits_le32(&prcm_base->clksel_cam, 0x0000001F, (PER_M5X2 + 1)); + clrsetbits_le32(&prcm_base->clksel_cam, 0x0000001F, PER_M5X2); + /* M4 */ + clrsetbits_le32(&prcm_base->clksel_dss, 0x0000001F, (PER_M4X2 + 1)); + clrsetbits_le32(&prcm_base->clksel_dss, 0x0000001F, PER_M4X2); + /* M3 */ + clrsetbits_le32(&prcm_base->clksel_dss, + 0x00001F00, (PER_M3X2 + 1) << 8); + clrsetbits_le32(&prcm_base->clksel_dss, + 0x00001F00, PER_M3X2 << 8); + /* M2 (DIV_96M): CM_CLKSEL3_PLL[0:4] */ + clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, (ptr->m2 + 1)); + clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, ptr->m2); + /* Workaround end */ + + /* M (PERIPH_DPLL_MULT): CM_CLKSEL2_PLL[8:18] */ + clrsetbits_le32(&prcm_base->clksel2_pll, + 0x0007FF00, ptr->m << 8); + + /* N (PERIPH_DPLL_DIV): CM_CLKSEL2_PLL[0:6] */ + clrsetbits_le32(&prcm_base->clksel2_pll, 0x0000007F, ptr->n); + + /* FREQSEL (PERIPH_DPLL_FREQSEL): CM_CLKEN_PLL[20:23] */ + clrsetbits_le32(&prcm_base->clken_pll, 0x00F00000, ptr->fsel << 20); + + /* LOCK MODE (EN_PERIPH_DPLL): CM_CLKEN_PLL[16:18] */ + clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_LOCK << 16); + wait_on_value(ST_PERIPH_CLK, 2, &prcm_base->idlest_ckgen, LDELAY); +} + +static void dpll5_init_34xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_per2_dpll_param(); + + /* Moving it to the right sysclk base */ + ptr = ptr + clk_index; + + /* PER2 DPLL (DPLL5) */ + clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_STOP); + wait_on_value(1, 0, &prcm_base->idlest2_ckgen, LDELAY); + /* set M2 (usbtll_fck) */ + clrsetbits_le32(&prcm_base->clksel5_pll, 0x0000001F, ptr->m2); + /* set m (11-bit multiplier) */ + clrsetbits_le32(&prcm_base->clksel4_pll, 0x0007FF00, ptr->m << 8); + /* set n (7-bit divider)*/ + clrsetbits_le32(&prcm_base->clksel4_pll, 0x0000007F, ptr->n); + /* FREQSEL */ + clrsetbits_le32(&prcm_base->clken_pll, 0x000000F0, ptr->fsel << 4); + /* lock mode */ + clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_LOCK); + wait_on_value(1, 1, &prcm_base->idlest2_ckgen, LDELAY); +} + +static void mpu_init_34xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_mpu_dpll_param(); + + /* Moving to the right sysclk and ES rev base */ + ptr = ptr + (3 * clk_index) + sil_index; + + /* MPU DPLL (unlocked already) */ + + /* M2 (MPU_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_MPU[0:4] */ + clrsetbits_le32(&prcm_base->clksel2_pll_mpu, + 0x0000001F, ptr->m2); + + /* M (MPU_DPLL_MULT) : CM_CLKSEL2_PLL_MPU[8:18] */ + clrsetbits_le32(&prcm_base->clksel1_pll_mpu, + 0x0007FF00, ptr->m << 8); + + /* N (MPU_DPLL_DIV) : CM_CLKSEL2_PLL_MPU[0:6] */ + clrsetbits_le32(&prcm_base->clksel1_pll_mpu, + 0x0000007F, ptr->n); + + /* FREQSEL (MPU_DPLL_FREQSEL) : CM_CLKEN_PLL_MPU[4:7] */ + clrsetbits_le32(&prcm_base->clken_pll_mpu, + 0x000000F0, ptr->fsel << 4); +} + +static void iva_init_34xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_iva_dpll_param(); + + /* Moving to the right sysclk and ES rev base */ + ptr = ptr + (3 * clk_index) + sil_index; + + /* IVA DPLL */ + /* EN_IVA2_DPLL : CM_CLKEN_PLL_IVA2[0:2] */ + clrsetbits_le32(&prcm_base->clken_pll_iva2, + 0x00000007, PLL_STOP); + wait_on_value(ST_IVA2_CLK, 0, &prcm_base->idlest_pll_iva2, LDELAY); + + /* M2 (IVA2_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_IVA2[0:4] */ + clrsetbits_le32(&prcm_base->clksel2_pll_iva2, + 0x0000001F, ptr->m2); + + /* M (IVA2_DPLL_MULT) : CM_CLKSEL1_PLL_IVA2[8:18] */ + clrsetbits_le32(&prcm_base->clksel1_pll_iva2, + 0x0007FF00, ptr->m << 8); + + /* N (IVA2_DPLL_DIV) : CM_CLKSEL1_PLL_IVA2[0:6] */ + clrsetbits_le32(&prcm_base->clksel1_pll_iva2, + 0x0000007F, ptr->n); + + /* FREQSEL (IVA2_DPLL_FREQSEL) : CM_CLKEN_PLL_IVA2[4:7] */ + clrsetbits_le32(&prcm_base->clken_pll_iva2, + 0x000000F0, ptr->fsel << 4); + + /* LOCK MODE (EN_IVA2_DPLL) : CM_CLKEN_PLL_IVA2[0:2] */ + clrsetbits_le32(&prcm_base->clken_pll_iva2, + 0x00000007, PLL_LOCK); + + wait_on_value(ST_IVA2_CLK, 1, &prcm_base->idlest_pll_iva2, LDELAY); +} + +/* + * OMAP3630 specific functions + */ + +static void dpll3_init_36xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_36x_core_dpll_param(); + void (*f_lock_pll) (u32, u32, u32, u32); + int xip_safe, p0, p1, p2, p3; + + xip_safe = is_running_in_sram(); + + /* Moving it to the right sysclk base */ + ptr += clk_index; + + if (xip_safe) { + /* CORE DPLL */ + + /* Select relock bypass: CM_CLKEN_PLL[0:2] */ + clrsetbits_le32(&prcm_base->clken_pll, + 0x00000007, PLL_FAST_RELOCK_BYPASS); + wait_on_value(ST_CORE_CLK, 0, &prcm_base->idlest_ckgen, + LDELAY); + + /* CM_CLKSEL1_EMU[DIV_DPLL3] */ + clrsetbits_le32(&prcm_base->clksel1_emu, + 0x001F0000, CORE_M3X2 << 16); + + /* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */ + clrsetbits_le32(&prcm_base->clksel1_pll, + 0xF8000000, ptr->m2 << 27); + + /* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */ + clrsetbits_le32(&prcm_base->clksel1_pll, + 0x07FF0000, ptr->m << 16); + + /* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */ + clrsetbits_le32(&prcm_base->clksel1_pll, + 0x00007F00, ptr->n << 8); + + /* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */ + clrbits_le32(&prcm_base->clksel1_pll, 0x00000040); + + /* SSI */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x00000F00, CORE_SSI_DIV << 8); + /* FSUSB */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x00000030, CORE_FUSB_DIV << 4); + /* L4 */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x0000000C, CORE_L4_DIV << 2); + /* L3 */ + clrsetbits_le32(&prcm_base->clksel_core, + 0x00000003, CORE_L3_DIV); + /* GFX */ + clrsetbits_le32(&prcm_base->clksel_gfx, + 0x00000007, GFX_DIV_36X); + /* RESET MGR */ + clrsetbits_le32(&prcm_base->clksel_wkup, + 0x00000006, WKUP_RSM << 1); + /* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */ + clrsetbits_le32(&prcm_base->clken_pll, + 0x000000F0, ptr->fsel << 4); + /* LOCK MODE */ + clrsetbits_le32(&prcm_base->clken_pll, + 0x00000007, PLL_LOCK); + + wait_on_value(ST_CORE_CLK, 1, &prcm_base->idlest_ckgen, + LDELAY); + } else if (is_running_in_flash()) { + /* + * if running from flash, jump to small relocated code + * area in SRAM. + */ + f_lock_pll = (void *) (SRAM_CLK_CODE); + + p0 = readl(&prcm_base->clken_pll); + clrsetbits_le32(&p0, 0x00000007, PLL_FAST_RELOCK_BYPASS); + /* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */ + clrsetbits_le32(&p0, 0x000000F0, ptr->fsel << 4); + + p1 = readl(&prcm_base->clksel1_pll); + /* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */ + clrsetbits_le32(&p1, 0xF8000000, ptr->m2 << 27); + /* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */ + clrsetbits_le32(&p1, 0x07FF0000, ptr->m << 16); + /* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */ + clrsetbits_le32(&p1, 0x00007F00, ptr->n << 8); + /* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */ + clrbits_le32(&p1, 0x00000040); + + p2 = readl(&prcm_base->clksel_core); + /* SSI */ + clrsetbits_le32(&p2, 0x00000F00, CORE_SSI_DIV << 8); + /* FSUSB */ + clrsetbits_le32(&p2, 0x00000030, CORE_FUSB_DIV << 4); + /* L4 */ + clrsetbits_le32(&p2, 0x0000000C, CORE_L4_DIV << 2); + /* L3 */ + clrsetbits_le32(&p2, 0x00000003, CORE_L3_DIV); + + p3 = (u32)&prcm_base->idlest_ckgen; + + (*f_lock_pll) (p0, p1, p2, p3); + } +} + +static void dpll4_init_36xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + struct dpll_per_36x_param *ptr; + + ptr = (struct dpll_per_36x_param *)get_36x_per_dpll_param(); + + /* Moving it to the right sysclk base */ + ptr += clk_index; + + /* EN_PERIPH_DPLL: CM_CLKEN_PLL[16:18] */ + clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_STOP << 16); + wait_on_value(ST_PERIPH_CLK, 0, &prcm_base->idlest_ckgen, LDELAY); + + /* M6 (DIV_DPLL4): CM_CLKSEL1_EMU[24:29] */ + clrsetbits_le32(&prcm_base->clksel1_emu, 0x3F000000, ptr->m6 << 24); + + /* M5 (CLKSEL_CAM): CM_CLKSEL1_EMU[0:5] */ + clrsetbits_le32(&prcm_base->clksel_cam, 0x0000003F, ptr->m5); + + /* M4 (CLKSEL_DSS1): CM_CLKSEL_DSS[0:5] */ + clrsetbits_le32(&prcm_base->clksel_dss, 0x0000003F, ptr->m4); + + /* M3 (CLKSEL_DSS1): CM_CLKSEL_DSS[8:13] */ + clrsetbits_le32(&prcm_base->clksel_dss, 0x00003F00, ptr->m3 << 8); + + /* M2 (DIV_96M): CM_CLKSEL3_PLL[0:4] */ + clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, ptr->m2); + + /* M (PERIPH_DPLL_MULT): CM_CLKSEL2_PLL[8:19] */ + clrsetbits_le32(&prcm_base->clksel2_pll, 0x000FFF00, ptr->m << 8); + + /* N (PERIPH_DPLL_DIV): CM_CLKSEL2_PLL[0:6] */ + clrsetbits_le32(&prcm_base->clksel2_pll, 0x0000007F, ptr->n); + + /* M2DIV (CLKSEL_96M): CM_CLKSEL_CORE[12:13] */ + clrsetbits_le32(&prcm_base->clksel_core, 0x00003000, ptr->m2div << 12); + + /* LOCK MODE (EN_PERIPH_DPLL): CM_CLKEN_PLL[16:18] */ + clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_LOCK << 16); + wait_on_value(ST_PERIPH_CLK, 2, &prcm_base->idlest_ckgen, LDELAY); +} + +static void dpll5_init_36xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_36x_per2_dpll_param(); + + /* Moving it to the right sysclk base */ + ptr = ptr + clk_index; + + /* PER2 DPLL (DPLL5) */ + clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_STOP); + wait_on_value(1, 0, &prcm_base->idlest2_ckgen, LDELAY); + /* set M2 (usbtll_fck) */ + clrsetbits_le32(&prcm_base->clksel5_pll, 0x0000001F, ptr->m2); + /* set m (11-bit multiplier) */ + clrsetbits_le32(&prcm_base->clksel4_pll, 0x0007FF00, ptr->m << 8); + /* set n (7-bit divider)*/ + clrsetbits_le32(&prcm_base->clksel4_pll, 0x0000007F, ptr->n); + /* lock mode */ + clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_LOCK); + wait_on_value(1, 1, &prcm_base->idlest2_ckgen, LDELAY); +} + +static void mpu_init_36xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *) get_36x_mpu_dpll_param(); + + /* Moving to the right sysclk */ + ptr += clk_index; + + /* MPU DPLL (unlocked already */ + + /* M2 (MPU_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_MPU[0:4] */ + clrsetbits_le32(&prcm_base->clksel2_pll_mpu, 0x0000001F, ptr->m2); + + /* M (MPU_DPLL_MULT) : CM_CLKSEL2_PLL_MPU[8:18] */ + clrsetbits_le32(&prcm_base->clksel1_pll_mpu, 0x0007FF00, ptr->m << 8); + + /* N (MPU_DPLL_DIV) : CM_CLKSEL2_PLL_MPU[0:6] */ + clrsetbits_le32(&prcm_base->clksel1_pll_mpu, 0x0000007F, ptr->n); +} + +static void iva_init_36xx(u32 sil_index, u32 clk_index) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + dpll_param *ptr = (dpll_param *)get_36x_iva_dpll_param(); + + /* Moving to the right sysclk */ + ptr += clk_index; + + /* IVA DPLL */ + /* EN_IVA2_DPLL : CM_CLKEN_PLL_IVA2[0:2] */ + clrsetbits_le32(&prcm_base->clken_pll_iva2, 0x00000007, PLL_STOP); + wait_on_value(ST_IVA2_CLK, 0, &prcm_base->idlest_pll_iva2, LDELAY); + + /* M2 (IVA2_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_IVA2[0:4] */ + clrsetbits_le32(&prcm_base->clksel2_pll_iva2, 0x0000001F, ptr->m2); + + /* M (IVA2_DPLL_MULT) : CM_CLKSEL1_PLL_IVA2[8:18] */ + clrsetbits_le32(&prcm_base->clksel1_pll_iva2, 0x0007FF00, ptr->m << 8); + + /* N (IVA2_DPLL_DIV) : CM_CLKSEL1_PLL_IVA2[0:6] */ + clrsetbits_le32(&prcm_base->clksel1_pll_iva2, 0x0000007F, ptr->n); + + /* LOCK (MODE (EN_IVA2_DPLL) : CM_CLKEN_PLL_IVA2[0:2] */ + clrsetbits_le32(&prcm_base->clken_pll_iva2, 0x00000007, PLL_LOCK); + + wait_on_value(ST_IVA2_CLK, 1, &prcm_base->idlest_pll_iva2, LDELAY); +} + +/****************************************************************************** + * prcm_init() - inits clocks for PRCM as defined in clocks.h + * called from SRAM, or Flash (using temp SRAM stack). + *****************************************************************************/ +void prcm_init(void) +{ + u32 osc_clk = 0, sys_clkin_sel; + u32 clk_index, sil_index = 0; + struct prm *prm_base = (struct prm *)PRM_BASE; + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + + /* + * Gauge the input clock speed and find out the sys_clkin_sel + * value corresponding to the input clock. + */ + osc_clk = get_osc_clk_speed(); + get_sys_clkin_sel(osc_clk, &sys_clkin_sel); + + /* set input crystal speed */ + clrsetbits_le32(&prm_base->clksel, 0x00000007, sys_clkin_sel); + + /* If the input clock is greater than 19.2M always divide/2 */ + if (sys_clkin_sel > 2) { + /* input clock divider */ + clrsetbits_le32(&prm_base->clksrc_ctrl, 0x000000C0, 2 << 6); + clk_index = sys_clkin_sel / 2; + } else { + /* input clock divider */ + clrsetbits_le32(&prm_base->clksrc_ctrl, 0x000000C0, 1 << 6); + clk_index = sys_clkin_sel; + } + + if (get_cpu_family() == CPU_OMAP36XX) { + /* + * In warm reset conditions on OMAP36xx/AM/DM37xx + * the rom code incorrectly sets the DPLL4 clock + * input divider to /6.5. Section 3.5.3.3.3.2.1 of + * the AM/DM37x TRM explains that the /6.5 divider + * is used only when the input clock is 13MHz. + * + * If the part is in this cpu family *and* the input + * clock *is not* 13 MHz, then reset the DPLL4 clock + * input divider to /1 as it should never set to /6.5 + * in this case. + */ + if (sys_clkin_sel != 1) { /* 13 MHz */ + /* Bit 8: DPLL4_CLKINP_DIV */ + clrbits_le32(&prm_base->clksrc_ctrl, 0x00000100); + } + + /* Unlock MPU DPLL (slows things down, and needed later) */ + clrsetbits_le32(&prcm_base->clken_pll_mpu, + 0x00000007, PLL_LOW_POWER_BYPASS); + wait_on_value(ST_MPU_CLK, 0, &prcm_base->idlest_pll_mpu, + LDELAY); + + dpll3_init_36xx(0, clk_index); + dpll4_init_36xx(0, clk_index); + dpll5_init_36xx(0, clk_index); + iva_init_36xx(0, clk_index); + mpu_init_36xx(0, clk_index); + + /* Lock MPU DPLL to set frequency */ + clrsetbits_le32(&prcm_base->clken_pll_mpu, + 0x00000007, PLL_LOCK); + wait_on_value(ST_MPU_CLK, 1, &prcm_base->idlest_pll_mpu, + LDELAY); + } else { + /* + * The DPLL tables are defined according to sysclk value and + * silicon revision. The clk_index value will be used to get + * the values for that input sysclk from the DPLL param table + * and sil_index will get the values for that SysClk for the + * appropriate silicon rev. + */ + if (((get_cpu_family() == CPU_OMAP34XX) + && (get_cpu_rev() >= CPU_3XX_ES20)) || + (get_cpu_family() == CPU_AM35XX)) + sil_index = 1; + + /* Unlock MPU DPLL (slows things down, and needed later) */ + clrsetbits_le32(&prcm_base->clken_pll_mpu, + 0x00000007, PLL_LOW_POWER_BYPASS); + wait_on_value(ST_MPU_CLK, 0, &prcm_base->idlest_pll_mpu, + LDELAY); + + dpll3_init_34xx(sil_index, clk_index); + dpll4_init_34xx(sil_index, clk_index); + dpll5_init_34xx(sil_index, clk_index); + if (get_cpu_family() != CPU_AM35XX) + iva_init_34xx(sil_index, clk_index); + + mpu_init_34xx(sil_index, clk_index); + + /* Lock MPU DPLL to set frequency */ + clrsetbits_le32(&prcm_base->clken_pll_mpu, + 0x00000007, PLL_LOCK); + wait_on_value(ST_MPU_CLK, 1, &prcm_base->idlest_pll_mpu, + LDELAY); + } + + /* Set up GPTimers to sys_clk source only */ + setbits_le32(&prcm_base->clksel_per, 0x000000FF); + setbits_le32(&prcm_base->clksel_wkup, 1); + + sdelay(5000); +} + +/* + * Enable usb ehci uhh, tll clocks + */ +void ehci_clocks_enable(void) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + + /* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */ + setbits_le32(&prcm_base->iclken_usbhost, 1); + /* + * Enable USBHOST_48M_FCLK (USBHOST_FCLK1) + * and USBHOST_120M_FCLK (USBHOST_FCLK2) + */ + setbits_le32(&prcm_base->fclken_usbhost, 0x00000003); + /* Enable USBTTL_ICLK */ + setbits_le32(&prcm_base->iclken3_core, 0x00000004); + /* Enable USBTTL_FCLK */ + setbits_le32(&prcm_base->fclken3_core, 0x00000004); +} + +/****************************************************************************** + * peripheral_enable() - Enable the clks & power for perifs (GPT2, UART1,...) + *****************************************************************************/ +void per_clocks_enable(void) +{ + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; + + /* Enable GP2 timer. */ + setbits_le32(&prcm_base->clksel_per, 0x01); /* GPT2 = sys clk */ + setbits_le32(&prcm_base->iclken_per, 0x08); /* ICKen GPT2 */ + setbits_le32(&prcm_base->fclken_per, 0x08); /* FCKen GPT2 */ + + /* Enable GP9 timer. */ + setbits_le32(&prcm_base->clksel_per, 0x80); /* GPT9 = 32kHz clk */ + setbits_le32(&prcm_base->iclken_per, 0x400); /* ICKen GPT9 */ + setbits_le32(&prcm_base->fclken_per, 0x400); /* FCKen GPT9 */ + +#ifdef CONFIG_SYS_NS16550 + /* Enable UART1 clocks */ + setbits_le32(&prcm_base->fclken1_core, 0x00002000); + setbits_le32(&prcm_base->iclken1_core, 0x00002000); + + /* Enable UART2 clocks */ + setbits_le32(&prcm_base->fclken1_core, 0x00004000); + setbits_le32(&prcm_base->iclken1_core, 0x00004000); + + /* UART 3 Clocks */ + setbits_le32(&prcm_base->fclken_per, 0x00000800); + setbits_le32(&prcm_base->iclken_per, 0x00000800); +#endif + +#ifdef CONFIG_OMAP3_GPIO_2 + setbits_le32(&prcm_base->fclken_per, 0x00002000); + setbits_le32(&prcm_base->iclken_per, 0x00002000); +#endif +#ifdef CONFIG_OMAP3_GPIO_3 + setbits_le32(&prcm_base->fclken_per, 0x00004000); + setbits_le32(&prcm_base->iclken_per, 0x00004000); +#endif +#ifdef CONFIG_OMAP3_GPIO_4 + setbits_le32(&prcm_base->fclken_per, 0x00008000); + setbits_le32(&prcm_base->iclken_per, 0x00008000); +#endif +#ifdef CONFIG_OMAP3_GPIO_5 + setbits_le32(&prcm_base->fclken_per, 0x00010000); + setbits_le32(&prcm_base->iclken_per, 0x00010000); +#endif +#ifdef CONFIG_OMAP3_GPIO_6 + setbits_le32(&prcm_base->fclken_per, 0x00020000); + setbits_le32(&prcm_base->iclken_per, 0x00020000); +#endif + +#ifdef CONFIG_SYS_I2C_OMAP34XX + /* Turn on all 3 I2C clocks */ + setbits_le32(&prcm_base->fclken1_core, 0x00038000); + setbits_le32(&prcm_base->iclken1_core, 0x00038000); /* I2C1,2,3 = on */ +#endif + /* Enable the ICLK for 32K Sync Timer as its used in udelay */ + setbits_le32(&prcm_base->iclken_wkup, 0x00000004); + + if (get_cpu_family() != CPU_AM35XX) + out_le32(&prcm_base->fclken_iva2, FCK_IVA2_ON); + + out_le32(&prcm_base->fclken1_core, FCK_CORE1_ON); + out_le32(&prcm_base->iclken1_core, ICK_CORE1_ON); + out_le32(&prcm_base->iclken2_core, ICK_CORE2_ON); + out_le32(&prcm_base->fclken_wkup, FCK_WKUP_ON); + out_le32(&prcm_base->iclken_wkup, ICK_WKUP_ON); + out_le32(&prcm_base->fclken_dss, FCK_DSS_ON); + out_le32(&prcm_base->iclken_dss, ICK_DSS_ON); + if (get_cpu_family() != CPU_AM35XX) { + out_le32(&prcm_base->fclken_cam, FCK_CAM_ON); + out_le32(&prcm_base->iclken_cam, ICK_CAM_ON); + } + + sdelay(1000); +} diff --git a/arch/arm/mach-omap2/omap3/emac.c b/arch/arm/mach-omap2/omap3/emac.c new file mode 100644 index 0000000000..37f4b8b490 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/emac.c @@ -0,0 +1,29 @@ +/* + * + * DaVinci EMAC initialization. + * + * (C) Copyright 2011, Ilya Yanok, Emcraft Systems + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <netdev.h> +#include <asm/io.h> +#include <asm/arch/am35x_def.h> + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ + u32 reset; + + /* ensure that the module is out of reset */ + reset = readl(&am35x_scm_general_regs->ip_sw_reset); + reset &= ~CPGMACSS_SW_RST; + writel(reset, &am35x_scm_general_regs->ip_sw_reset); + + return davinci_emac_initialize(); +} diff --git a/arch/arm/mach-omap2/omap3/emif4.c b/arch/arm/mach-omap2/omap3/emif4.c new file mode 100644 index 0000000000..a2aadc9816 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/emif4.c @@ -0,0 +1,165 @@ +/* + * Author : + * Vaibhav Hiremath <hvaibhav@ti.com> + * + * Based on mem.c and sdrc.c + * + * Copyright (C) 2010 + * Texas Instruments Incorporated - http://www.ti.com/ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/mem.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/emif4.h> + +DECLARE_GLOBAL_DATA_PTR; +extern omap3_sysinfo sysinfo; + +static emif4_t *emif4_base = (emif4_t *)OMAP34XX_SDRC_BASE; + +/* + * is_mem_sdr - + * - Return 1 if mem type in use is SDR + */ +u32 is_mem_sdr(void) +{ + return 0; +} + +/* + * get_sdr_cs_size - + * - Get size of chip select 0/1 + */ +u32 get_sdr_cs_size(u32 cs) +{ + u32 size = 0; + + /* TODO: Calculate the size based on EMIF4 configuration */ + if (cs == CS0) + size = CONFIG_SYS_CS0_SIZE; + + return size; +} + +/* + * get_sdr_cs_offset - + * - Get offset of cs from cs0 start + */ +u32 get_sdr_cs_offset(u32 cs) +{ + u32 offset = 0; + + return offset; +} + +/* + * do_emif4_init - + * - Init the emif4 module for DDR access + * - Early init routines, called from flash or SRAM. + */ +static void do_emif4_init(void) +{ + unsigned int regval; + /* Set the DDR PHY parameters in PHY ctrl registers */ + regval = (EMIF4_DDR1_READ_LAT | EMIF4_DDR1_PWRDN_DIS | + EMIF4_DDR1_EXT_STRB_DIS); + writel(regval, &emif4_base->ddr_phyctrl1); + writel(regval, &emif4_base->ddr_phyctrl1_shdw); + writel(0, &emif4_base->ddr_phyctrl2); + + /* Reset the DDR PHY and wait till completed */ + regval = readl(&emif4_base->sdram_iodft_tlgc); + regval |= (1<<10); + writel(regval, &emif4_base->sdram_iodft_tlgc); + /*Wait till that bit clears*/ + while ((readl(&emif4_base->sdram_iodft_tlgc) & (1<<10)) == 0x1); + /*Re-verify the DDR PHY status*/ + while ((readl(&emif4_base->sdram_sts) & (1<<2)) == 0x0); + + regval |= (1<<0); + writel(regval, &emif4_base->sdram_iodft_tlgc); + /* Set SDR timing registers */ + regval = (EMIF4_TIM1_T_WTR | EMIF4_TIM1_T_RRD | + EMIF4_TIM1_T_RC | EMIF4_TIM1_T_RAS | + EMIF4_TIM1_T_WR | EMIF4_TIM1_T_RCD | + EMIF4_TIM1_T_RP); + writel(regval, &emif4_base->sdram_time1); + writel(regval, &emif4_base->sdram_time1_shdw); + + regval = (EMIF4_TIM2_T_CKE | EMIF4_TIM2_T_RTP | + EMIF4_TIM2_T_XSRD | EMIF4_TIM2_T_XSNR | + EMIF4_TIM2_T_ODT | EMIF4_TIM2_T_XP); + writel(regval, &emif4_base->sdram_time2); + writel(regval, &emif4_base->sdram_time2_shdw); + + regval = (EMIF4_TIM3_T_RAS_MAX | EMIF4_TIM3_T_RFC); + writel(regval, &emif4_base->sdram_time3); + writel(regval, &emif4_base->sdram_time3_shdw); + + /* Set the PWR control register */ + regval = (EMIF4_PWR_PM_TIM | EMIF4_PWR_LP_MODE | + EMIF4_PWR_DPD_DIS | EMIF4_PWR_IDLE_MODE); + writel(regval, &emif4_base->sdram_pwr_mgmt); + writel(regval, &emif4_base->sdram_pwr_mgmt_shdw); + + /* Set the DDR refresh rate control register */ + regval = (EMIF4_REFRESH_RATE | EMIF4_INITREF_DIS); + writel(regval, &emif4_base->sdram_refresh_ctrl); + writel(regval, &emif4_base->sdram_refresh_ctrl_shdw); + + /* set the SDRAM configuration register */ + regval = (EMIF4_CFG_PGSIZE | EMIF4_CFG_EBANK | + EMIF4_CFG_IBANK | EMIF4_CFG_ROWSIZE | + EMIF4_CFG_CL | EMIF4_CFG_NARROW_MD | + EMIF4_CFG_SDR_DRV | EMIF4_CFG_DDR_DIS_DLL | + EMIF4_CFG_DDR2_DDQS | EMIF4_CFG_DDR_TERM | + EMIF4_CFG_IBANK_POS | EMIF4_CFG_SDRAM_TYP); + writel(regval, &emif4_base->sdram_config); +} + +/* + * dram_init - + * - Sets uboots idea of sdram size + */ +int dram_init(void) +{ + unsigned int size0 = 0, size1 = 0; + + size0 = get_sdr_cs_size(CS0); + /* + * If a second bank of DDR is attached to CS1 this is + * where it can be started. Early init code will init + * memory on CS0. + */ + if ((sysinfo.mtype == DDR_COMBO) || (sysinfo.mtype == DDR_STACKED)) + size1 = get_sdr_cs_size(CS1); + + gd->ram_size = size0 + size1; + return 0; +} + +void dram_init_banksize (void) +{ + unsigned int size0 = 0, size1 = 0; + + size0 = get_sdr_cs_size(CS0); + size1 = get_sdr_cs_size(CS1); + + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = size0; + gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + get_sdr_cs_offset(CS1); + gd->bd->bi_dram[1].size = size1; +} + +/* + * mem_init() - + * - Initialize memory subsystem + */ +void mem_init(void) +{ + do_emif4_init(); +} diff --git a/arch/arm/mach-omap2/omap3/lowlevel_init.S b/arch/arm/mach-omap2/omap3/lowlevel_init.S new file mode 100644 index 0000000000..1e587723ce --- /dev/null +++ b/arch/arm/mach-omap2/omap3/lowlevel_init.S @@ -0,0 +1,476 @@ +/* + * Board specific setup info + * + * (C) Copyright 2008 + * Texas Instruments, <www.ti.com> + * + * Initial Code by: + * Richard Woodruff <r-woodruff2@ti.com> + * Syed Mohammed Khasim <khasim@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> +#include <asm/arch/mem.h> +#include <asm/arch/clocks_omap3.h> +#include <linux/linkage.h> + +/* + * Funtion for making PPA HAL API calls in secure devices + * Input: + * R0 - Service ID + * R1 - paramer list + */ +ENTRY(do_omap3_emu_romcode_call) + PUSH {r4-r12, lr} @ Save all registers from ROM code! + MOV r12, r0 @ Copy the Secure Service ID in R12 + MOV r3, r1 @ Copy the pointer to va_list in R3 + MOV r1, #0 @ Process ID - 0 + MOV r2, #OMAP3_EMU_HAL_START_HAL_CRITICAL @ Copy the pointer + @ to va_list in R3 + MOV r6, #0xFF @ Indicate new Task call + mcr p15, 0, r0, c7, c10, 4 @ DSB + mcr p15, 0, r0, c7, c10, 5 @ DMB + .word 0xe1600071 @ SMC #1 to call PPA service - hand assembled + @ because we use -march=armv5 + POP {r4-r12, pc} +ENDPROC(do_omap3_emu_romcode_call) + +#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_NAND_BOOT) +/************************************************************************** + * cpy_clk_code: relocates clock code into SRAM where its safer to execute + * R1 = SRAM destination address. + *************************************************************************/ +ENTRY(cpy_clk_code) + /* Copy DPLL code into SRAM */ + adr r0, go_to_speed /* copy from start of go_to_speed... */ + adr r2, lowlevel_init /* ... up to start of low_level_init */ +next2: + ldmia r0!, {r3 - r10} /* copy from source address [r0] */ + stmia r1!, {r3 - r10} /* copy to target address [r1] */ + cmp r0, r2 /* until source end address [r2] */ + blo next2 + mov pc, lr /* back to caller */ +ENDPROC(cpy_clk_code) + +/* *************************************************************************** + * go_to_speed: -Moves to bypass, -Commits clock dividers, -puts dpll at speed + * -executed from SRAM. + * R0 = CM_CLKEN_PLL-bypass value + * R1 = CM_CLKSEL1_PLL-m, n, and divider values + * R2 = CM_CLKSEL_CORE-divider values + * R3 = CM_IDLEST_CKGEN - addr dpll lock wait + * + * Note: If core unlocks/relocks and SDRAM is running fast already it gets + * confused. A reset of the controller gets it back. Taking away its + * L3 when its not in self refresh seems bad for it. Normally, this + * code runs from flash before SDR is init so that should be ok. + ****************************************************************************/ +ENTRY(go_to_speed) + stmfd sp!, {r4 - r6} + + /* move into fast relock bypass */ + ldr r4, pll_ctl_add + str r0, [r4] +wait1: + ldr r5, [r3] /* get status */ + and r5, r5, #0x1 /* isolate core status */ + cmp r5, #0x1 /* still locked? */ + beq wait1 /* if lock, loop */ + + /* set new dpll dividers _after_ in bypass */ + ldr r5, pll_div_add1 + str r1, [r5] /* set m, n, m2 */ + ldr r5, pll_div_add2 + str r2, [r5] /* set l3/l4/.. dividers*/ + ldr r5, pll_div_add3 /* wkup */ + ldr r2, pll_div_val3 /* rsm val */ + str r2, [r5] + ldr r5, pll_div_add4 /* gfx */ + ldr r2, pll_div_val4 + str r2, [r5] + ldr r5, pll_div_add5 /* emu */ + ldr r2, pll_div_val5 + str r2, [r5] + + /* now prepare GPMC (flash) for new dpll speed */ + /* flash needs to be stable when we jump back to it */ + ldr r5, flash_cfg3_addr + ldr r2, flash_cfg3_val + str r2, [r5] + ldr r5, flash_cfg4_addr + ldr r2, flash_cfg4_val + str r2, [r5] + ldr r5, flash_cfg5_addr + ldr r2, flash_cfg5_val + str r2, [r5] + ldr r5, flash_cfg1_addr + ldr r2, [r5] + orr r2, r2, #0x3 /* up gpmc divider */ + str r2, [r5] + + /* lock DPLL3 and wait a bit */ + orr r0, r0, #0x7 /* set up for lock mode */ + str r0, [r4] /* lock */ + nop /* ARM slow at this point working at sys_clk */ + nop + nop + nop +wait2: + ldr r5, [r3] /* get status */ + and r5, r5, #0x1 /* isolate core status */ + cmp r5, #0x1 /* still locked? */ + bne wait2 /* if lock, loop */ + nop + nop + nop + nop + ldmfd sp!, {r4 - r6} + mov pc, lr /* back to caller, locked */ +ENDPROC(go_to_speed) + +_go_to_speed: .word go_to_speed + +/* these constants need to be close for PIC code */ +/* The Nor has to be in the Flash Base CS0 for this condition to happen */ +flash_cfg1_addr: + .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG1) +flash_cfg3_addr: + .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG3) +flash_cfg3_val: + .word STNOR_GPMC_CONFIG3 +flash_cfg4_addr: + .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG4) +flash_cfg4_val: + .word STNOR_GPMC_CONFIG4 +flash_cfg5_val: + .word STNOR_GPMC_CONFIG5 +flash_cfg5_addr: + .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG5) +pll_ctl_add: + .word CM_CLKEN_PLL +pll_div_add1: + .word CM_CLKSEL1_PLL +pll_div_add2: + .word CM_CLKSEL_CORE +pll_div_add3: + .word CM_CLKSEL_WKUP +pll_div_val3: + .word (WKUP_RSM << 1) +pll_div_add4: + .word CM_CLKSEL_GFX +pll_div_val4: + .word (GFX_DIV << 0) +pll_div_add5: + .word CM_CLKSEL1_EMU +pll_div_val5: + .word CLSEL1_EMU_VAL + +#endif + +ENTRY(lowlevel_init) + ldr sp, SRAM_STACK + str ip, [sp] /* stash ip register */ + mov ip, lr /* save link reg across call */ +#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_ONENAND_BOOT) +/* + * No need to copy/exec the clock code - DPLL adjust already done + * in NAND/oneNAND Boot. + */ + ldr r1, =SRAM_CLK_CODE + bl cpy_clk_code +#endif /* NAND Boot */ + mov lr, ip /* restore link reg */ + ldr ip, [sp] /* restore save ip */ + /* tail-call s_init to setup pll, mux, memory */ + b s_init + +ENDPROC(lowlevel_init) + + /* the literal pools origin */ + .ltorg + +REG_CONTROL_STATUS: + .word CONTROL_STATUS +SRAM_STACK: + .word LOW_LEVEL_SRAM_STACK + +/* DPLL(1-4) PARAM TABLES */ + +/* + * Each of the tables has M, N, FREQSEL, M2 values defined for nominal + * OPP (1.2V). The fields are defined according to dpll_param struct (clock.c). + * The values are defined for all possible sysclk and for ES1 and ES2. + */ + +mpu_dpll_param: +/* 12MHz */ +/* ES1 */ +.word MPU_M_12_ES1, MPU_N_12_ES1, MPU_FSEL_12_ES1, MPU_M2_12_ES1 +/* ES2 */ +.word MPU_M_12_ES2, MPU_N_12_ES2, MPU_FSEL_12_ES2, MPU_M2_ES2 +/* 3410 */ +.word MPU_M_12, MPU_N_12, MPU_FSEL_12, MPU_M2_12 + +/* 13MHz */ +/* ES1 */ +.word MPU_M_13_ES1, MPU_N_13_ES1, MPU_FSEL_13_ES1, MPU_M2_13_ES1 +/* ES2 */ +.word MPU_M_13_ES2, MPU_N_13_ES2, MPU_FSEL_13_ES2, MPU_M2_13_ES2 +/* 3410 */ +.word MPU_M_13, MPU_N_13, MPU_FSEL_13, MPU_M2_13 + +/* 19.2MHz */ +/* ES1 */ +.word MPU_M_19P2_ES1, MPU_N_19P2_ES1, MPU_FSEL_19P2_ES1, MPU_M2_19P2_ES1 +/* ES2 */ +.word MPU_M_19P2_ES2, MPU_N_19P2_ES2, MPU_FSEL_19P2_ES2, MPU_M2_19P2_ES2 +/* 3410 */ +.word MPU_M_19P2, MPU_N_19P2, MPU_FSEL_19P2, MPU_M2_19P2 + +/* 26MHz */ +/* ES1 */ +.word MPU_M_26_ES1, MPU_N_26_ES1, MPU_FSEL_26_ES1, MPU_M2_26_ES1 +/* ES2 */ +.word MPU_M_26_ES2, MPU_N_26_ES2, MPU_FSEL_26_ES2, MPU_M2_26_ES2 +/* 3410 */ +.word MPU_M_26, MPU_N_26, MPU_FSEL_26, MPU_M2_26 + +/* 38.4MHz */ +/* ES1 */ +.word MPU_M_38P4_ES1, MPU_N_38P4_ES1, MPU_FSEL_38P4_ES1, MPU_M2_38P4_ES1 +/* ES2 */ +.word MPU_M_38P4_ES2, MPU_N_38P4_ES2, MPU_FSEL_38P4_ES2, MPU_M2_38P4_ES2 +/* 3410 */ +.word MPU_M_38P4, MPU_N_38P4, MPU_FSEL_38P4, MPU_M2_38P4 + + +.globl get_mpu_dpll_param +get_mpu_dpll_param: + adr r0, mpu_dpll_param + mov pc, lr + +iva_dpll_param: +/* 12MHz */ +/* ES1 */ +.word IVA_M_12_ES1, IVA_N_12_ES1, IVA_FSEL_12_ES1, IVA_M2_12_ES1 +/* ES2 */ +.word IVA_M_12_ES2, IVA_N_12_ES2, IVA_FSEL_12_ES2, IVA_M2_12_ES2 +/* 3410 */ +.word IVA_M_12, IVA_N_12, IVA_FSEL_12, IVA_M2_12 + +/* 13MHz */ +/* ES1 */ +.word IVA_M_13_ES1, IVA_N_13_ES1, IVA_FSEL_13_ES1, IVA_M2_13_ES1 +/* ES2 */ +.word IVA_M_13_ES2, IVA_N_13_ES2, IVA_FSEL_13_ES2, IVA_M2_13_ES2 +/* 3410 */ +.word IVA_M_13, IVA_N_13, IVA_FSEL_13, IVA_M2_13 + +/* 19.2MHz */ +/* ES1 */ +.word IVA_M_19P2_ES1, IVA_N_19P2_ES1, IVA_FSEL_19P2_ES1, IVA_M2_19P2_ES1 +/* ES2 */ +.word IVA_M_19P2_ES2, IVA_N_19P2_ES2, IVA_FSEL_19P2_ES2, IVA_M2_19P2_ES2 +/* 3410 */ +.word IVA_M_19P2, IVA_N_19P2, IVA_FSEL_19P2, IVA_M2_19P2 + +/* 26MHz */ +/* ES1 */ +.word IVA_M_26_ES1, IVA_N_26_ES1, IVA_FSEL_26_ES1, IVA_M2_26_ES1 +/* ES2 */ +.word IVA_M_26_ES2, IVA_N_26_ES2, IVA_FSEL_26_ES2, IVA_M2_26_ES2 +/* 3410 */ +.word IVA_M_26, IVA_N_26, IVA_FSEL_26, IVA_M2_26 + +/* 38.4MHz */ +/* ES1 */ +.word IVA_M_38P4_ES1, IVA_N_38P4_ES1, IVA_FSEL_38P4_ES1, IVA_M2_38P4_ES1 +/* ES2 */ +.word IVA_M_38P4_ES2, IVA_N_38P4_ES2, IVA_FSEL_38P4_ES2, IVA_M2_38P4_ES2 +/* 3410 */ +.word IVA_M_38P4, IVA_N_38P4, IVA_FSEL_38P4, IVA_M2_38P4 + + +.globl get_iva_dpll_param +get_iva_dpll_param: + adr r0, iva_dpll_param + mov pc, lr + +/* Core DPLL targets for L3 at 166 & L133 */ +core_dpll_param: +/* 12MHz */ +/* ES1 */ +.word CORE_M_12_ES1, CORE_N_12_ES1, CORE_FSL_12_ES1, CORE_M2_12_ES1 +/* ES2 */ +.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12 +/* 3410 */ +.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12 + +/* 13MHz */ +/* ES1 */ +.word CORE_M_13_ES1, CORE_N_13_ES1, CORE_FSL_13_ES1, CORE_M2_13_ES1 +/* ES2 */ +.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13 +/* 3410 */ +.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13 + +/* 19.2MHz */ +/* ES1 */ +.word CORE_M_19P2_ES1, CORE_N_19P2_ES1, CORE_FSL_19P2_ES1, CORE_M2_19P2_ES1 +/* ES2 */ +.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2 +/* 3410 */ +.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2 + +/* 26MHz */ +/* ES1 */ +.word CORE_M_26_ES1, CORE_N_26_ES1, CORE_FSL_26_ES1, CORE_M2_26_ES1 +/* ES2 */ +.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26 +/* 3410 */ +.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26 + +/* 38.4MHz */ +/* ES1 */ +.word CORE_M_38P4_ES1, CORE_N_38P4_ES1, CORE_FSL_38P4_ES1, CORE_M2_38P4_ES1 +/* ES2 */ +.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4 +/* 3410 */ +.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4 + +.globl get_core_dpll_param +get_core_dpll_param: + adr r0, core_dpll_param + mov pc, lr + +/* PER DPLL values are same for both ES1 and ES2 */ +per_dpll_param: +/* 12MHz */ +.word PER_M_12, PER_N_12, PER_FSEL_12, PER_M2_12 + +/* 13MHz */ +.word PER_M_13, PER_N_13, PER_FSEL_13, PER_M2_13 + +/* 19.2MHz */ +.word PER_M_19P2, PER_N_19P2, PER_FSEL_19P2, PER_M2_19P2 + +/* 26MHz */ +.word PER_M_26, PER_N_26, PER_FSEL_26, PER_M2_26 + +/* 38.4MHz */ +.word PER_M_38P4, PER_N_38P4, PER_FSEL_38P4, PER_M2_38P4 + +.globl get_per_dpll_param +get_per_dpll_param: + adr r0, per_dpll_param + mov pc, lr + +/* PER2 DPLL values */ +per2_dpll_param: +/* 12MHz */ +.word PER2_M_12, PER2_N_12, PER2_FSEL_12, PER2_M2_12 + +/* 13MHz */ +.word PER2_M_13, PER2_N_13, PER2_FSEL_13, PER2_M2_13 + +/* 19.2MHz */ +.word PER2_M_19P2, PER2_N_19P2, PER2_FSEL_19P2, PER2_M2_19P2 + +/* 26MHz */ +.word PER2_M_26, PER2_N_26, PER2_FSEL_26, PER2_M2_26 + +/* 38.4MHz */ +.word PER2_M_38P4, PER2_N_38P4, PER2_FSEL_38P4, PER2_M2_38P4 + +.globl get_per2_dpll_param +get_per2_dpll_param: + adr r0, per2_dpll_param + mov pc, lr + +/* + * Tables for 36XX/37XX devices + * + */ +mpu_36x_dpll_param: +/* 12MHz */ +.word 50, 0, 0, 1 +/* 13MHz */ +.word 600, 12, 0, 1 +/* 19.2MHz */ +.word 125, 3, 0, 1 +/* 26MHz */ +.word 300, 12, 0, 1 +/* 38.4MHz */ +.word 125, 7, 0, 1 + +iva_36x_dpll_param: +/* 12MHz */ +.word 130, 2, 0, 1 +/* 13MHz */ +.word 20, 0, 0, 1 +/* 19.2MHz */ +.word 325, 11, 0, 1 +/* 26MHz */ +.word 10, 0, 0, 1 +/* 38.4MHz */ +.word 325, 23, 0, 1 + +core_36x_dpll_param: +/* 12MHz */ +.word 100, 2, 0, 1 +/* 13MHz */ +.word 400, 12, 0, 1 +/* 19.2MHz */ +.word 375, 17, 0, 1 +/* 26MHz */ +.word 200, 12, 0, 1 +/* 38.4MHz */ +.word 375, 35, 0, 1 + +per_36x_dpll_param: +/* SYSCLK M N M2 M3 M4 M5 M6 m2DIV */ +.word 12000, 360, 4, 9, 16, 5, 4, 3, 1 +.word 13000, 864, 12, 9, 16, 9, 4, 3, 1 +.word 19200, 360, 7, 9, 16, 5, 4, 3, 1 +.word 26000, 432, 12, 9, 16, 9, 4, 3, 1 +.word 38400, 360, 15, 9, 16, 5, 4, 3, 1 + +per2_36x_dpll_param: +/* 12MHz */ +.word PER2_36XX_M_12, PER2_36XX_N_12, 0, PER2_36XX_M2_12 +/* 13MHz */ +.word PER2_36XX_M_13, PER2_36XX_N_13, 0, PER2_36XX_M2_13 +/* 19.2MHz */ +.word PER2_36XX_M_19P2, PER2_36XX_N_19P2, 0, PER2_36XX_M2_19P2 +/* 26MHz */ +.word PER2_36XX_M_26, PER2_36XX_N_26, 0, PER2_36XX_M2_26 +/* 38.4MHz */ +.word PER2_36XX_M_38P4, PER2_36XX_N_38P4, 0, PER2_36XX_M2_38P4 + + +ENTRY(get_36x_mpu_dpll_param) + adr r0, mpu_36x_dpll_param + mov pc, lr +ENDPROC(get_36x_mpu_dpll_param) + +ENTRY(get_36x_iva_dpll_param) + adr r0, iva_36x_dpll_param + mov pc, lr +ENDPROC(get_36x_iva_dpll_param) + +ENTRY(get_36x_core_dpll_param) + adr r0, core_36x_dpll_param + mov pc, lr +ENDPROC(get_36x_core_dpll_param) + +ENTRY(get_36x_per_dpll_param) + adr r0, per_36x_dpll_param + mov pc, lr +ENDPROC(get_36x_per_dpll_param) + +ENTRY(get_36x_per2_dpll_param) + adr r0, per2_36x_dpll_param + mov pc, lr +ENDPROC(get_36x_per2_dpll_param) diff --git a/arch/arm/mach-omap2/omap3/sdrc.c b/arch/arm/mach-omap2/omap3/sdrc.c new file mode 100644 index 0000000000..4f15ac9cb5 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/sdrc.c @@ -0,0 +1,241 @@ +/* + * Functions related to OMAP3 SDRC. + * + * This file has been created after exctracting and consolidating + * the SDRC related content from mem.c and board.c, also created + * generic init function (mem_init). + * + * Copyright (C) 2004-2010 + * Texas Instruments Incorporated - http://www.ti.com/ + * + * Copyright (C) 2011 + * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> + * + * Author : + * Vaibhav Hiremath <hvaibhav@ti.com> + * + * Original implementation by (mem.c, board.c) : + * Sunil Kumar <sunilsaini05@gmail.com> + * Shashi Ranjan <shashiranjanmca05@gmail.com> + * Manikandan Pillai <mani.pillai@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/mem.h> +#include <asm/arch/sys_proto.h> + +DECLARE_GLOBAL_DATA_PTR; +extern omap3_sysinfo sysinfo; + +static struct sdrc *sdrc_base = (struct sdrc *)OMAP34XX_SDRC_BASE; + +/* + * is_mem_sdr - + * - Return 1 if mem type in use is SDR + */ +u32 is_mem_sdr(void) +{ + if (readl(&sdrc_base->cs[CS0].mr) == SDRC_MR_0_SDR) + return 1; + return 0; +} + +/* + * make_cs1_contiguous - + * - When we have CS1 populated we want to have it mapped after cs0 to allow + * command line mem=xyz use all memory with out discontinuous support + * compiled in. We could do it in the ATAG, but there really is two banks... + */ +void make_cs1_contiguous(void) +{ + u32 size, a_add_low, a_add_high; + + size = get_sdr_cs_size(CS0); + size >>= 25; /* divide by 32 MiB to find size to offset CS1 */ + a_add_high = (size & 3) << 8; /* set up low field */ + a_add_low = (size & 0x3C) >> 2; /* set up high field */ + writel((a_add_high | a_add_low), &sdrc_base->cs_cfg); + +} + + +/* + * get_sdr_cs_size - + * - Get size of chip select 0/1 + */ +u32 get_sdr_cs_size(u32 cs) +{ + u32 size; + + /* get ram size field */ + size = readl(&sdrc_base->cs[cs].mcfg) >> 8; + size &= 0x3FF; /* remove unwanted bits */ + size <<= 21; /* multiply by 2 MiB to find size in MB */ + return size; +} + +/* + * get_sdr_cs_offset - + * - Get offset of cs from cs0 start + */ +u32 get_sdr_cs_offset(u32 cs) +{ + u32 offset; + + if (!cs) + return 0; + + offset = readl(&sdrc_base->cs_cfg); + offset = (offset & 15) << 27 | (offset & 0x300) << 17; + + return offset; +} + +/* + * write_sdrc_timings - + * - Takes CS and associated timings and initalize SDRAM + * - Test CS to make sure it's OK for use + */ +static void write_sdrc_timings(u32 cs, struct sdrc_actim *sdrc_actim_base, + struct board_sdrc_timings *timings) +{ + /* Setup timings we got from the board. */ + writel(timings->mcfg, &sdrc_base->cs[cs].mcfg); + writel(timings->ctrla, &sdrc_actim_base->ctrla); + writel(timings->ctrlb, &sdrc_actim_base->ctrlb); + writel(timings->rfr_ctrl, &sdrc_base->cs[cs].rfr_ctrl); + writel(CMD_NOP, &sdrc_base->cs[cs].manual); + writel(CMD_PRECHARGE, &sdrc_base->cs[cs].manual); + writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual); + writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual); + writel(timings->mr, &sdrc_base->cs[cs].mr); + + /* + * Test ram in this bank + * Disable if bad or not present + */ + if (!mem_ok(cs)) + writel(0, &sdrc_base->cs[cs].mcfg); +} + +/* + * do_sdrc_init - + * - Code called once in C-Stack only context for CS0 and with early being + * true and a possible 2nd time depending on memory configuration from + * stack+global context. + */ +void do_sdrc_init(u32 cs, u32 early) +{ + struct sdrc_actim *sdrc_actim_base0, *sdrc_actim_base1; + struct board_sdrc_timings timings; + + sdrc_actim_base0 = (struct sdrc_actim *)SDRC_ACTIM_CTRL0_BASE; + sdrc_actim_base1 = (struct sdrc_actim *)SDRC_ACTIM_CTRL1_BASE; + + /* set some default timings */ + timings.sharing = SDRC_SHARING; + + /* + * When called in the early context this may be SPL and we will + * need to set all of the timings. This ends up being board + * specific so we call a helper function to take care of this + * for us. Otherwise, to be safe, we need to copy the settings + * from the first bank to the second. We will setup CS0, + * then set cs_cfg to the appropriate value then try and + * setup CS1. + */ +#ifdef CONFIG_SPL_BUILD + /* set/modify board-specific timings */ + get_board_mem_timings(&timings); +#endif + if (early) { + /* reset sdrc controller */ + writel(SOFTRESET, &sdrc_base->sysconfig); + wait_on_value(RESETDONE, RESETDONE, &sdrc_base->status, + 12000000); + writel(0, &sdrc_base->sysconfig); + + /* setup sdrc to ball mux */ + writel(timings.sharing, &sdrc_base->sharing); + + /* Disable Power Down of CKE because of 1 CKE on combo part */ + writel(WAKEUPPROC | SRFRONRESET | PAGEPOLICY_HIGH, + &sdrc_base->power); + + writel(ENADLL | DLLPHASE_90, &sdrc_base->dlla_ctrl); + sdelay(0x20000); +#ifdef CONFIG_SPL_BUILD + write_sdrc_timings(CS0, sdrc_actim_base0, &timings); + make_cs1_contiguous(); + write_sdrc_timings(CS1, sdrc_actim_base1, &timings); +#endif + + } + + /* + * If we aren't using SPL we have been loaded by some + * other means which may not have correctly initialized + * both CS0 and CS1 (such as some older versions of x-loader) + * so we may be asked now to setup CS1. + */ + if (cs == CS1) { + timings.mcfg = readl(&sdrc_base->cs[CS0].mcfg), + timings.rfr_ctrl = readl(&sdrc_base->cs[CS0].rfr_ctrl); + timings.ctrla = readl(&sdrc_actim_base0->ctrla); + timings.ctrlb = readl(&sdrc_actim_base0->ctrlb); + timings.mr = readl(&sdrc_base->cs[CS0].mr); + write_sdrc_timings(cs, sdrc_actim_base1, &timings); + } +} + +/* + * dram_init - + * - Sets uboots idea of sdram size + */ +int dram_init(void) +{ + unsigned int size0 = 0, size1 = 0; + + size0 = get_sdr_cs_size(CS0); + /* + * We always need to have cs_cfg point at where the second + * bank would be, if present. Failure to do so can lead to + * strange situations where memory isn't detected and + * configured correctly. CS0 will already have been setup + * at this point. + */ + make_cs1_contiguous(); + do_sdrc_init(CS1, NOT_EARLY); + size1 = get_sdr_cs_size(CS1); + + gd->ram_size = size0 + size1; + + return 0; +} + +void dram_init_banksize (void) +{ + unsigned int size0 = 0, size1 = 0; + + size0 = get_sdr_cs_size(CS0); + size1 = get_sdr_cs_size(CS1); + + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = size0; + gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + get_sdr_cs_offset(CS1); + gd->bd->bi_dram[1].size = size1; +} + +/* + * mem_init - + * - Init the sdrc chip, + * - Selects CS0 and CS1, + */ +void mem_init(void) +{ + /* only init up first bank here */ + do_sdrc_init(CS0, EARLY_INIT); +} diff --git a/arch/arm/mach-omap2/omap3/spl_id_nand.c b/arch/arm/mach-omap2/omap3/spl_id_nand.c new file mode 100644 index 0000000000..0e2f0a2f6d --- /dev/null +++ b/arch/arm/mach-omap2/omap3/spl_id_nand.c @@ -0,0 +1,57 @@ +/* + * (C) Copyright 2011 + * Texas Instruments, <www.ti.com> + * + * Author : + * Tom Rini <trini@ti.com> + * + * Initial Code from: + * Richard Woodruff <r-woodruff2@ti.com> + * Jian Zhang <jzhang@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <jffs2/load_kernel.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/omap_gpmc.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/mem.h> + +/* + * Many boards will want to know the results of the NAND_CMD_READID command + * in order to decide what to do about DDR initialization. This function + * allows us to do that very early and to pass those results back to the + * board so it can make whatever decisions need to be made. + */ +int identify_nand_chip(int *mfr, int *id) +{ + int loops = 1000; + + /* Make sure that we have setup GPMC for NAND correctly. */ + set_gpmc_cs0(MTD_DEV_TYPE_NAND); + + sdelay(2000); + + /* Issue a RESET and then READID */ + writeb(NAND_CMD_RESET, &gpmc_cfg->cs[0].nand_cmd); + writeb(NAND_CMD_STATUS, &gpmc_cfg->cs[0].nand_cmd); + while ((readl(&gpmc_cfg->cs[0].nand_dat) & NAND_STATUS_READY) + != NAND_STATUS_READY) { + sdelay(100); + if (--loops == 0) + return 1; + } + writeb(NAND_CMD_READID, &gpmc_cfg->cs[0].nand_cmd); + + /* Set the address to read to 0x0 */ + writeb(0x0, &gpmc_cfg->cs[0].nand_adr); + + /* Read off the manufacturer and device id. */ + *mfr = readb(&gpmc_cfg->cs[0].nand_dat); + *id = readb(&gpmc_cfg->cs[0].nand_dat); + + return 0; +} diff --git a/arch/arm/mach-omap2/omap3/sys_info.c b/arch/arm/mach-omap2/omap3/sys_info.c new file mode 100644 index 0000000000..6818fab253 --- /dev/null +++ b/arch/arm/mach-omap2/omap3/sys_info.c @@ -0,0 +1,343 @@ +/* + * (C) Copyright 2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Manikandan Pillai <mani.pillai@ti.com> + * + * Derived from Beagle Board and 3430 SDP code by + * Richard Woodruff <r-woodruff2@ti.com> + * Syed Mohammed Khasim <khasim@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/mem.h> /* get mem tables */ +#include <asm/arch/sys_proto.h> +#include <asm/bootm.h> + +#include <i2c.h> +#include <linux/compiler.h> + +extern omap3_sysinfo sysinfo; +static struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; + +#ifdef CONFIG_DISPLAY_CPUINFO +static char *rev_s[CPU_3XX_MAX_REV] = { + "1.0", + "2.0", + "2.1", + "3.0", + "3.1", + "UNKNOWN", + "UNKNOWN", + "3.1.2"}; + +/* this is the revision table for 37xx CPUs */ +static char *rev_s_37xx[CPU_37XX_MAX_REV] = { + "1.0", + "1.1", + "1.2"}; +#endif /* CONFIG_DISPLAY_CPUINFO */ + +void omap_die_id(unsigned int *die_id) +{ + struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE; + + die_id[0] = readl(&id_base->die_id_0); + die_id[1] = readl(&id_base->die_id_1); + die_id[2] = readl(&id_base->die_id_2); + die_id[3] = readl(&id_base->die_id_3); +} + +/****************************************** + * get_cpu_type(void) - extract cpu info + ******************************************/ +u32 get_cpu_type(void) +{ + return readl(&ctrl_base->ctrl_omap_stat); +} + +/****************************************** + * get_cpu_id(void) - extract cpu id + * returns 0 for ES1.0, cpuid otherwise + ******************************************/ +u32 get_cpu_id(void) +{ + struct ctrl_id *id_base; + u32 cpuid = 0; + + /* + * On ES1.0 the IDCODE register is not exposed on L4 + * so using CPU ID to differentiate between ES1.0 and > ES1.0. + */ + __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid)); + if ((cpuid & 0xf) == 0x0) { + return 0; + } else { + /* Decode the IDs on > ES1.0 */ + id_base = (struct ctrl_id *) OMAP34XX_ID_L4_IO_BASE; + + cpuid = readl(&id_base->idcode); + } + + return cpuid; +} + +/****************************************** + * get_cpu_family(void) - extract cpu info + ******************************************/ +u32 get_cpu_family(void) +{ + u16 hawkeye; + u32 cpu_family; + u32 cpuid = get_cpu_id(); + + if (cpuid == 0) + return CPU_OMAP34XX; + + hawkeye = (cpuid >> HAWKEYE_SHIFT) & 0xffff; + switch (hawkeye) { + case HAWKEYE_OMAP34XX: + cpu_family = CPU_OMAP34XX; + break; + case HAWKEYE_AM35XX: + cpu_family = CPU_AM35XX; + break; + case HAWKEYE_OMAP36XX: + cpu_family = CPU_OMAP36XX; + break; + default: + cpu_family = CPU_OMAP34XX; + } + + return cpu_family; +} + +/****************************************** + * get_cpu_rev(void) - extract version info + ******************************************/ +u32 get_cpu_rev(void) +{ + u32 cpuid = get_cpu_id(); + + if (cpuid == 0) + return CPU_3XX_ES10; + else + return (cpuid >> CPU_3XX_ID_SHIFT) & 0xf; +} + +/***************************************************************** + * get_sku_id(void) - read sku_id to get info on max clock rate + *****************************************************************/ +u32 get_sku_id(void) +{ + struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE; + return readl(&id_base->sku_id) & SKUID_CLK_MASK; +} + +/*************************************************************************** + * get_gpmc0_base() - Return current address hardware will be + * fetching from. The below effectively gives what is correct, its a bit + * mis-leading compared to the TRM. For the most general case the mask + * needs to be also taken into account this does work in practice. + * - for u-boot we currently map: + * -- 0 to nothing, + * -- 4 to flash + * -- 8 to enent + * -- c to wifi + ****************************************************************************/ +u32 get_gpmc0_base(void) +{ + u32 b; + + b = readl(&gpmc_cfg->cs[0].config7); + b &= 0x1F; /* keep base [5:0] */ + b = b << 24; /* ret 0x0b000000 */ + return b; +} + +/******************************************************************* + * get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand) + *******************************************************************/ +u32 get_gpmc0_width(void) +{ + return WIDTH_16BIT; +} + +/************************************************************************* + * get_board_rev() - setup to pass kernel board revision information + * returns:(bit[0-3] sub version, higher bit[7-4] is higher version) + *************************************************************************/ +#ifdef CONFIG_REVISION_TAG +u32 __weak get_board_rev(void) +{ + return 0x20; +} +#endif + +/******************************************************** + * get_base(); get upper addr of current execution + *******************************************************/ +static u32 get_base(void) +{ + u32 val; + + __asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory"); + val &= 0xF0000000; + val >>= 28; + return val; +} + +/******************************************************** + * is_running_in_flash() - tell if currently running in + * FLASH. + *******************************************************/ +u32 is_running_in_flash(void) +{ + if (get_base() < 4) + return 1; /* in FLASH */ + + return 0; /* running in SRAM or SDRAM */ +} + +/******************************************************** + * is_running_in_sram() - tell if currently running in + * SRAM. + *******************************************************/ +u32 is_running_in_sram(void) +{ + if (get_base() == 4) + return 1; /* in SRAM */ + + return 0; /* running in FLASH or SDRAM */ +} + +/******************************************************** + * is_running_in_sdram() - tell if currently running in + * SDRAM. + *******************************************************/ +u32 is_running_in_sdram(void) +{ + if (get_base() > 4) + return 1; /* in SDRAM */ + + return 0; /* running in SRAM or FLASH */ +} + +/*************************************************************** + * get_boot_type() - Is this an XIP type device or a stream one + * bits 4-0 specify type. Bit 5 says mem/perif + ***************************************************************/ +u32 get_boot_type(void) +{ + return (readl(&ctrl_base->status) & SYSBOOT_MASK); +} + +/************************************************************* + * get_device_type(): tell if GP/HS/EMU/TST + *************************************************************/ +u32 get_device_type(void) +{ + return ((readl(&ctrl_base->status) & (DEVICE_MASK)) >> 8); +} + +#ifdef CONFIG_DISPLAY_CPUINFO +/** + * Print CPU information + */ +int print_cpuinfo (void) +{ + char *cpu_family_s, *cpu_s, *sec_s, *max_clk; + + switch (get_cpu_family()) { + case CPU_OMAP34XX: + cpu_family_s = "OMAP"; + switch (get_cpu_type()) { + case OMAP3503: + cpu_s = "3503"; + break; + case OMAP3515: + cpu_s = "3515"; + break; + case OMAP3525: + cpu_s = "3525"; + break; + case OMAP3530: + cpu_s = "3530"; + break; + default: + cpu_s = "35XX"; + break; + } + if ((get_cpu_rev() >= CPU_3XX_ES31) && + (get_sku_id() == SKUID_CLK_720MHZ)) + max_clk = "720 MHz"; + else + max_clk = "600 MHz"; + + break; + case CPU_AM35XX: + cpu_family_s = "AM"; + switch (get_cpu_type()) { + case AM3505: + cpu_s = "3505"; + break; + case AM3517: + cpu_s = "3517"; + break; + default: + cpu_s = "35XX"; + break; + } + max_clk = "600 Mhz"; + break; + case CPU_OMAP36XX: + cpu_family_s = "OMAP"; + switch (get_cpu_type()) { + case OMAP3730: + cpu_s = "3630/3730"; + break; + default: + cpu_s = "36XX/37XX"; + break; + } + max_clk = "1 Ghz"; + break; + default: + cpu_family_s = "OMAP"; + cpu_s = "35XX"; + max_clk = "600 Mhz"; + } + + switch (get_device_type()) { + case TST_DEVICE: + sec_s = "TST"; + break; + case EMU_DEVICE: + sec_s = "EMU"; + break; + case HS_DEVICE: + sec_s = "HS"; + break; + case GP_DEVICE: + sec_s = "GP"; + break; + default: + sec_s = "?"; + } + + if (CPU_OMAP36XX == get_cpu_family()) + printf("%s%s-%s ES%s, CPU-OPP2, L3-200MHz, Max CPU Clock %s\n", + cpu_family_s, cpu_s, sec_s, + rev_s_37xx[get_cpu_rev()], max_clk); + else + printf("%s%s-%s ES%s, CPU-OPP2, L3-165MHz, Max CPU Clock %s\n", + cpu_family_s, cpu_s, sec_s, + rev_s[get_cpu_rev()], max_clk); + + return 0; +} +#endif /* CONFIG_DISPLAY_CPUINFO */ |