diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common/mem-common.c')
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/mem-common.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/mem-common.c b/arch/arm/cpu/armv7/omap-common/mem-common.c deleted file mode 100644 index d72e82e..0000000 --- a/arch/arm/cpu/armv7/omap-common/mem-common.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * (C) Copyright 2010 - * Texas Instruments, <www.ti.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> -#include <jffs2/load_kernel.h> - -const struct gpmc *gpmc_cfg = (struct gpmc *)GPMC_BASE; - -#if defined(CONFIG_NOR) -char gpmc_cs0_flash = MTD_DEV_TYPE_NOR; -#elif defined(CONFIG_NAND) || defined(CONFIG_CMD_NAND) -char gpmc_cs0_flash = MTD_DEV_TYPE_NAND; -#elif defined(CONFIG_CMD_ONENAND) -char gpmc_cs0_flash = MTD_DEV_TYPE_ONENAND; -#else -char gpmc_cs0_flash = -1; -#endif - -#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, const 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); -} - -void set_gpmc_cs0(int flash_type) -{ - const u32 *gpmc_regs; - u32 base, size; -#if defined(CONFIG_NOR) - const u32 gpmc_regs_nor[GPMC_MAX_REG] = { - STNOR_GPMC_CONFIG1, - STNOR_GPMC_CONFIG2, - STNOR_GPMC_CONFIG3, - STNOR_GPMC_CONFIG4, - STNOR_GPMC_CONFIG5, - STNOR_GPMC_CONFIG6, - STNOR_GPMC_CONFIG7 - }; -#endif -#if defined(CONFIG_NAND) || defined(CONFIG_CMD_NAND) - const u32 gpmc_regs_nand[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 - }; -#endif -#if defined(CONFIG_CMD_ONENAND) - const u32 gpmc_regs_onenand[GPMC_MAX_REG] = { - ONENAND_GPMC_CONFIG1, - ONENAND_GPMC_CONFIG2, - ONENAND_GPMC_CONFIG3, - ONENAND_GPMC_CONFIG4, - ONENAND_GPMC_CONFIG5, - ONENAND_GPMC_CONFIG6, - 0 - }; -#endif - - switch (flash_type) { -#if defined(CONFIG_NOR) - case MTD_DEV_TYPE_NOR: - gpmc_regs = gpmc_regs_nor; - base = CONFIG_SYS_FLASH_BASE; - size = (CONFIG_SYS_FLASH_SIZE > 0x08000000) ? GPMC_SIZE_256M : - ((CONFIG_SYS_FLASH_SIZE > 0x04000000) ? GPMC_SIZE_128M : - ((CONFIG_SYS_FLASH_SIZE > 0x02000000) ? GPMC_SIZE_64M : - ((CONFIG_SYS_FLASH_SIZE > 0x01000000) ? GPMC_SIZE_32M : - GPMC_SIZE_16M))); - break; -#endif -#if defined(CONFIG_NAND) || defined(CONFIG_CMD_NAND) - case MTD_DEV_TYPE_NAND: - gpmc_regs = gpmc_regs_nand; - base = CONFIG_SYS_NAND_BASE; - size = GPMC_SIZE_16M; - break; -#endif -#if defined(CONFIG_CMD_ONENAND) - case MTD_DEV_TYPE_ONENAND: - gpmc_regs = gpmc_regs_onenand; - base = CONFIG_SYS_ONENAND_BASE; - size = GPMC_SIZE_128M; - break; -#endif - default: - /* disable the GPMC0 config set by ROM code */ - writel(0, &gpmc_cfg->cs[0].config7); - sdelay(1000); - return; - } - - /* enable chip-select specific configurations */ - enable_gpmc_cs_config(gpmc_regs, &gpmc_cfg->cs[0], base, size); -} - -/***************************************************** - * 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) -{ - /* global settings */ - writel(0x00000008, &gpmc_cfg->sysconfig); - writel(0x00000000, &gpmc_cfg->irqstatus); - writel(0x00000000, &gpmc_cfg->irqenable); - /* disable timeout, set a safe reset value */ - writel(0x00001ff0, &gpmc_cfg->timeout_control); - writel(gpmc_cs0_flash == MTD_DEV_TYPE_NOR ? - 0x00000200 : 0x00000012, &gpmc_cfg->config); - - set_gpmc_cs0(gpmc_cs0_flash); -} |