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b2d5ac5985
This adds NAND boot support for LS2085AQDS, using SPL framework. Details of forming NAND image can be found in README. Signed-off-by: Scott Wood <scottwood@freescale.com> [York Sun: Remove +S from defconfig after commit 252ed872] Signed-off-by: York Sun <yorksun@freescale.com>
98 lines
2.7 KiB
C
98 lines
2.7 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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <config.h>
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#include <spl.h>
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#include <asm/io.h>
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#include <nand.h>
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#if defined(CONFIG_SPL_NAND_RAW_ONLY)
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void spl_nand_load_image(void)
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{
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nand_init();
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nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
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CONFIG_SYS_NAND_U_BOOT_SIZE,
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(void *)CONFIG_SYS_NAND_U_BOOT_DST);
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spl_set_header_raw_uboot();
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nand_deselect();
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}
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#else
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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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debug("spl: nand - using hw ecc\n");
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nand_init();
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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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sizeof(*header), (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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puts("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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puts("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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sizeof(*header), (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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sizeof(*header), (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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sizeof(*header), (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 *)(unsigned long)spl_image.load_addr);
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nand_deselect();
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}
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#endif
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