mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-23 19:39:44 +09:00
2e222105c5
block_read returns unsigned long, so it doesn't make sense to check for < 0. and neither does marking the header structure as const and then casting away the constness to load data into it. Also cleanup some unneeded pointer casting while we're at it. Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com> Reviewed-by: Tom Rini <trini@ti.com>
138 lines
3.3 KiB
C
138 lines
3.3 KiB
C
/*
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* (C) Copyright 2010
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* Texas Instruments, <www.ti.com>
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*
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* Aneesh V <aneesh@ti.com>
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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 <spl.h>
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#include <asm/u-boot.h>
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#include <asm/utils.h>
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#include <mmc.h>
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#include <fat.h>
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#include <version.h>
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DECLARE_GLOBAL_DATA_PTR;
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static void mmc_load_image_raw(struct mmc *mmc)
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{
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unsigned long err;
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u32 image_size_sectors;
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struct image_header *header;
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header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
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sizeof(struct image_header));
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/* read image header to find the image size & load address */
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err = mmc->block_dev.block_read(0,
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1,
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header);
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if (err == 0)
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goto end;
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spl_parse_image_header(header);
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/* convert size to sectors - round up */
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image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
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mmc->read_bl_len;
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/* Read the header too to avoid extra memcpy */
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err = mmc->block_dev.block_read(0,
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
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image_size_sectors, (void *)spl_image.load_addr);
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end:
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if (err == 0) {
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printf("spl: mmc blk read err - %lu\n", err);
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hang();
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}
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}
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#ifdef CONFIG_SPL_FAT_SUPPORT
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static void mmc_load_image_fat(struct mmc *mmc)
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{
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int err;
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struct image_header *header;
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header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
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sizeof(struct image_header));
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err = fat_register_device(&mmc->block_dev,
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CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION);
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if (err) {
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printf("spl: fat register err - %d\n", err);
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hang();
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}
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err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
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header, sizeof(struct image_header));
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if (err <= 0)
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goto end;
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spl_parse_image_header(header);
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err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
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(u8 *)spl_image.load_addr, 0);
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end:
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if (err <= 0) {
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printf("spl: error reading image %s, err - %d\n",
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CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err);
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hang();
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}
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}
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#endif
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void spl_mmc_load_image(void)
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{
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struct mmc *mmc;
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int err;
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u32 boot_mode;
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mmc_initialize(gd->bd);
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/* We register only one device. So, the dev id is always 0 */
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mmc = find_mmc_device(0);
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if (!mmc) {
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puts("spl: mmc device not found!!\n");
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hang();
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}
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err = mmc_init(mmc);
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if (err) {
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printf("spl: mmc init failed: err - %d\n", err);
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hang();
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}
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boot_mode = spl_boot_mode();
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if (boot_mode == MMCSD_MODE_RAW) {
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debug("boot mode - RAW\n");
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mmc_load_image_raw(mmc);
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#ifdef CONFIG_SPL_FAT_SUPPORT
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} else if (boot_mode == MMCSD_MODE_FAT) {
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debug("boot mode - FAT\n");
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mmc_load_image_fat(mmc);
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#endif
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} else {
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puts("spl: wrong MMC boot mode\n");
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hang();
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}
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}
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