mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 09:27:35 +00:00
111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/*
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* Copyright (C) 2011
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* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/u-boot.h>
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#include <asm/utils.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/io.h>
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#include <nand.h>
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#include <version.h>
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#include <asm/omap_common.h>
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void spl_nand_load_image(void)
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{
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struct image_header *header;
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int *src __attribute__((unused));
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int *dst __attribute__((unused));
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switch (omap_boot_mode()) {
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case NAND_MODE_HW_ECC:
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debug("spl: nand - using hw ecc\n");
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gpmc_init();
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nand_init();
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break;
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default:
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puts("spl: ERROR: This bootmode is not implemented - hanging");
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hang();
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}
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/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
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header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
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#ifdef CONFIG_SPL_OS_BOOT
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if (!spl_start_uboot()) {
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/*
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* load parameter image
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* load to temp position since nand_spl_load_image reads
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* a whole block which is typically larger than
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* CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite
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* following sections like BSS
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*/
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nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
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CONFIG_CMD_SPL_WRITE_SIZE,
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(void *)CONFIG_SYS_TEXT_BASE);
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/* copy to destintion */
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for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
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src = (int *)CONFIG_SYS_TEXT_BASE;
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src < (int *)(CONFIG_SYS_TEXT_BASE +
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CONFIG_CMD_SPL_WRITE_SIZE);
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src++, dst++) {
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writel(readl(src), dst);
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}
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/* load linux */
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nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
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CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
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spl_parse_image_header(header);
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if (header->ih_os == IH_OS_LINUX) {
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/* happy - was a linux */
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nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
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spl_image.size, (void *)spl_image.load_addr);
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nand_deselect();
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return;
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} else {
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printf("The Expected Linux image was not"
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"found. Please check your NAND"
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"configuration.\n");
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printf("Trying to start u-boot now...\n");
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}
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}
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#endif
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#ifdef CONFIG_NAND_ENV_DST
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nand_spl_load_image(CONFIG_ENV_OFFSET,
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CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
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spl_parse_image_header(header);
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nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
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(void *)spl_image.load_addr);
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#ifdef CONFIG_ENV_OFFSET_REDUND
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nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
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CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
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spl_parse_image_header(header);
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nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
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(void *)spl_image.load_addr);
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#endif
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#endif
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/* Load u-boot */
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nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
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CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
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spl_parse_image_header(header);
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nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
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spl_image.size, (void *)spl_image.load_addr);
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nand_deselect();
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}
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