diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common')
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/emif-common.c | 6 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/hwinit-common.c | 15 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/mem-common.c | 117 |
4 files changed, 124 insertions, 18 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile index 59f5352b26..5f5132f661 100644 --- a/arch/arm/cpu/armv7/omap-common/Makefile +++ b/arch/arm/cpu/armv7/omap-common/Makefile @@ -27,8 +27,4 @@ obj-y += boot-common.o obj-y += lowlevel_init.o endif -ifndef CONFIG_SPL_BUILD -ifneq ($(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),) obj-y += mem-common.o -endif -endif diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c index 429c4becf3..71c0cc8f2e 100644 --- a/arch/arm/cpu/armv7/omap-common/emif-common.c +++ b/arch/arm/cpu/armv7/omap-common/emif-common.c @@ -1384,8 +1384,10 @@ void sdram_init(void) if (sdram_type == EMIF_SDRAM_TYPE_DDR3 && (!in_sdram && !warm_reset())) { - do_bug0039_workaround(EMIF1_BASE); - do_bug0039_workaround(EMIF2_BASE); + if (emif1_enabled) + do_bug0039_workaround(EMIF1_BASE); + if (emif2_enabled) + do_bug0039_workaround(EMIF2_BASE); } debug("<<sdram_init()\n"); diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c index 8ebc0ce251..ba97d9ec56 100644 --- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c +++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c @@ -185,7 +185,7 @@ u32 omap_sdram_size(void) { u32 section, i, valid; u64 sdram_start = 0, sdram_end = 0, addr, - size, total_size = 0, trap_size = 0; + size, total_size = 0, trap_size = 0, trap_start = 0; for (i = 0; i < 4; i++) { section = __raw_readl(DMM_BASE + i*4); @@ -194,8 +194,8 @@ u32 omap_sdram_size(void) addr = section & EMIF_SYS_ADDR_MASK; /* See if the address is valid */ - if ((addr >= DRAM_ADDR_SPACE_START) && - (addr < DRAM_ADDR_SPACE_END)) { + if ((addr >= TI_ARMV7_DRAM_ADDR_SPACE_START) && + (addr < TI_ARMV7_DRAM_ADDR_SPACE_END)) { size = ((section & EMIF_SYS_SIZE_MASK) >> EMIF_SYS_SIZE_SHIFT); size = 1 << size; @@ -208,12 +208,15 @@ u32 omap_sdram_size(void) sdram_end = addr + size; } else { trap_size = size; + trap_start = addr; } - } - } - total_size = (sdram_end - sdram_start) - (trap_size); + + if ((trap_start >= sdram_start) && (trap_start < sdram_end)) + total_size = (sdram_end - sdram_start) - (trap_size); + else + total_size = sdram_end - sdram_start; return total_size; } diff --git a/arch/arm/cpu/armv7/omap-common/mem-common.c b/arch/arm/cpu/armv7/omap-common/mem-common.c index afc1bc185e..944ef840a1 100644 --- a/arch/arm/cpu/armv7/omap-common/mem-common.c +++ b/arch/arm/cpu/armv7/omap-common/mem-common.c @@ -2,31 +2,136 @@ * (C) Copyright 2010 * Texas Instruments, <www.ti.com> * - * Steve Sakoman <steve@sakoman.com> + * Author : + * Mansoor Ahamed <mansoor.ahamed@ti.com> + * + * Initial Code from: + * Manikandan Pillai <mani.pillai@ti.com> + * 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/cpu.h> +#include <asm/arch/mem.h> #include <asm/arch/sys_proto.h> +#include <command.h> +#include <linux/mtd/omap_gpmc.h> struct gpmc *gpmc_cfg; +#if defined(CONFIG_OMAP34XX) +/******************************************************** + * mem_ok() - test used to see if timings are correct + * for a part. Helps in guessing which part + * we are currently using. + *******************************************************/ +u32 mem_ok(u32 cs) +{ + u32 val1, val2, addr; + u32 pattern = 0x12345678; + + addr = OMAP34XX_SDRC_CS0 + get_sdr_cs_offset(cs); + + writel(0x0, addr + 0x400); /* clear pos A */ + writel(pattern, addr); /* pattern to pos B */ + writel(0x0, addr + 4); /* remove pattern off the bus */ + val1 = readl(addr + 0x400); /* get pos A value */ + val2 = readl(addr); /* get val2 */ + writel(0x0, addr + 0x400); /* clear pos A */ + + if ((val1 != 0) || (val2 != pattern)) /* see if pos A val changed */ + return 0; + else + return 1; +} +#endif + +void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base, + u32 size) +{ + writel(0, &cs->config7); + sdelay(1000); + /* Delay for settling */ + writel(gpmc_config[0], &cs->config1); + writel(gpmc_config[1], &cs->config2); + writel(gpmc_config[2], &cs->config3); + writel(gpmc_config[3], &cs->config4); + writel(gpmc_config[4], &cs->config5); + writel(gpmc_config[5], &cs->config6); + /* Enable the config */ + writel((((size & 0xF) << 8) | ((base >> 24) & 0x3F) | + (1 << 6)), &cs->config7); + sdelay(2000); +} + /***************************************************** * gpmc_init(): init gpmc bus + * Init GPMC for x16, MuxMode (SDRAM in x32). * This code can only be executed from SRAM or SDRAM. *****************************************************/ void gpmc_init(void) { + /* putting a blanket check on GPMC based on ZeBu for now */ gpmc_cfg = (struct gpmc *)GPMC_BASE; - +#if defined(CONFIG_NOR) +/* configure GPMC for NOR */ + const u32 gpmc_regs[GPMC_MAX_REG] = { STNOR_GPMC_CONFIG1, + STNOR_GPMC_CONFIG2, + STNOR_GPMC_CONFIG3, + STNOR_GPMC_CONFIG4, + STNOR_GPMC_CONFIG5, + STNOR_GPMC_CONFIG6, + STNOR_GPMC_CONFIG7 + }; + u32 size = GPMC_SIZE_16M; + u32 base = CONFIG_SYS_FLASH_BASE; +#elif defined(CONFIG_NAND) +/* configure GPMC for NAND */ + const u32 gpmc_regs[GPMC_MAX_REG] = { M_NAND_GPMC_CONFIG1, + M_NAND_GPMC_CONFIG2, + M_NAND_GPMC_CONFIG3, + M_NAND_GPMC_CONFIG4, + M_NAND_GPMC_CONFIG5, + M_NAND_GPMC_CONFIG6, + 0 + }; + u32 size = GPMC_SIZE_256M; + u32 base = CONFIG_SYS_NAND_BASE; +#elif defined(CONFIG_CMD_ONENAND) + const u32 gpmc_regs[GPMC_MAX_REG] = { ONENAND_GPMC_CONFIG1, + ONENAND_GPMC_CONFIG2, + ONENAND_GPMC_CONFIG3, + ONENAND_GPMC_CONFIG4, + ONENAND_GPMC_CONFIG5, + ONENAND_GPMC_CONFIG6, + 0 + }; + u32 base = PISMO1_ONEN_BASE; + u32 size = PISMO1_ONEN_SIZE; +#else + const u32 gpmc_regs[GPMC_MAX_REG] = { 0, 0, 0, 0, 0, 0, 0 }; + u32 size = 0; + u32 base = 0; +#endif /* global settings */ - writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */ - writel(0, &gpmc_cfg->timeout_control);/* timeout disable */ - + writel(0x00000008, &gpmc_cfg->sysconfig); + writel(0x00000000, &gpmc_cfg->irqstatus); + writel(0x00000000, &gpmc_cfg->irqenable); + writel(0x00000000, &gpmc_cfg->timeout_control); +#ifdef CONFIG_NOR + writel(0x00000200, &gpmc_cfg->config); +#else + writel(0x00000012, &gpmc_cfg->config); +#endif /* * Disable the GPMC0 config set by ROM code - * It conflicts with our MPDB (both at 0x08000000) */ writel(0, &gpmc_cfg->cs[0].config7); + sdelay(1000); + /* enable chip-select specific configurations */ + enable_gpmc_cs_config(gpmc_regs, &gpmc_cfg->cs[0], base, size); } |
