| /* |
| * Copyright (C) 2011 |
| * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| #include <common.h> |
| #include <asm/u-boot.h> |
| #include <asm/utils.h> |
| #include <asm/arch/sys_proto.h> |
| #include <asm/io.h> |
| #include <nand.h> |
| #include <version.h> |
| #include <asm/omap_common.h> |
| |
| void spl_nand_load_image(void) |
| { |
| struct image_header *header; |
| int *src __attribute__((unused)); |
| int *dst __attribute__((unused)); |
| |
| switch (omap_boot_mode()) { |
| case NAND_MODE_HW_ECC: |
| debug("spl: nand - using hw ecc\n"); |
| gpmc_init(); |
| nand_init(); |
| break; |
| default: |
| puts("spl: ERROR: This bootmode is not implemented - hanging"); |
| hang(); |
| } |
| |
| /*use CONFIG_SYS_TEXT_BASE as temporary storage area */ |
| header = (struct image_header *)(CONFIG_SYS_TEXT_BASE); |
| #ifdef CONFIG_SPL_OS_BOOT |
| if (!spl_start_uboot()) { |
| /* |
| * load parameter image |
| * load to temp position since nand_spl_load_image reads |
| * a whole block which is typically larger than |
| * CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite |
| * following sections like BSS |
| */ |
| nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS, |
| CONFIG_CMD_SPL_WRITE_SIZE, |
| (void *)CONFIG_SYS_TEXT_BASE); |
| /* copy to destintion */ |
| for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR, |
| src = (int *)CONFIG_SYS_TEXT_BASE; |
| src < (int *)(CONFIG_SYS_TEXT_BASE + |
| CONFIG_CMD_SPL_WRITE_SIZE); |
| src++, dst++) { |
| writel(readl(src), dst); |
| } |
| |
| /* load linux */ |
| nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS, |
| CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); |
| spl_parse_image_header(header); |
| if (header->ih_os == IH_OS_LINUX) { |
| /* happy - was a linux */ |
| nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS, |
| spl_image.size, (void *)spl_image.load_addr); |
| nand_deselect(); |
| return; |
| } else { |
| printf("The Expected Linux image was not" |
| "found. Please check your NAND" |
| "configuration.\n"); |
| printf("Trying to start u-boot now...\n"); |
| } |
| } |
| #endif |
| #ifdef CONFIG_NAND_ENV_DST |
| nand_spl_load_image(CONFIG_ENV_OFFSET, |
| CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); |
| spl_parse_image_header(header); |
| nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size, |
| (void *)spl_image.load_addr); |
| #ifdef CONFIG_ENV_OFFSET_REDUND |
| nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, |
| CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); |
| spl_parse_image_header(header); |
| nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size, |
| (void *)spl_image.load_addr); |
| #endif |
| #endif |
| /* Load u-boot */ |
| nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, |
| CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); |
| spl_parse_image_header(header); |
| nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, |
| spl_image.size, (void *)spl_image.load_addr); |
| nand_deselect(); |
| } |