mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-10-05 02:50:44 +09:00
91199f4a5a
This refactors spl_mmc_load_image to use a switch/case structure and easier to understand spl_start_uboot checks. This also introduces some more automatic fallback on the next mmc boot mode as long as it keeps failing. Lines that go beyond 80 chars are also reduced by reducing the number of tabs. Debug and error strings are refctored to match a common style. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> [trini: Fix a thinko in the SPL_EXT_SUPPORT + SPL_OS conversion, make part be __maybe_unused] Signed-off-by: Tom Rini <trini@konsulko.com>
215 lines
4.7 KiB
C
215 lines
4.7 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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <spl.h>
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#include <linux/compiler.h>
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#include <asm/u-boot.h>
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#include <mmc.h>
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#include <image.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
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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, sector, 1, header);
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if (err == 0)
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goto end;
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if (image_get_magic(header) != IH_MAGIC)
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return -1;
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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, sector, image_size_sectors,
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(void *)spl_image.load_addr);
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end:
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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if (err == 0)
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printf("spl: mmc block read error\n");
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#endif
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return (err == 0);
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}
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#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
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static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
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{
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disk_partition_t info;
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if (get_partition_info(&mmc->block_dev, partition, &info)) {
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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printf("spl: partition error\n");
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#endif
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return -1;
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}
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return mmc_load_image_raw_sector(mmc, info.start);
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}
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#endif
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#ifdef CONFIG_SPL_OS_BOOT
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static int mmc_load_image_raw_os(struct mmc *mmc)
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{
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unsigned long err;
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err = mmc->block_dev.block_read(0,
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CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
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CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
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(void *)CONFIG_SYS_SPL_ARGS_ADDR);
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if (err) {
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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printf("spl: mmc block read error\n");
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#endif
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return -1;
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}
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return mmc_load_image_raw_sector(mmc,
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CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
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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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u32 boot_mode;
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int err;
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__maybe_unused int part;
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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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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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puts("spl: mmc device not found\n");
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#endif
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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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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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printf("spl: mmc init failed with error: %d\n", err);
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#endif
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hang();
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}
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boot_mode = spl_boot_mode();
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switch (boot_mode) {
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case MMCSD_MODE_RAW:
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debug("spl: mmc boot mode: raw\n");
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#ifdef CONFIG_SPL_OS_BOOT
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if (!spl_start_uboot()) {
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err = mmc_load_image_raw_os(mmc);
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if (!err)
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return;
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}
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#endif
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#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
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err = mmc_load_image_raw_partition(mmc,
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
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#else
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err = mmc_load_image_raw_sector(mmc,
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
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#endif
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if (!err)
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return;
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#if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
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case MMCSD_MODE_FS:
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debug("spl: mmc boot mode: fs\n");
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#ifdef CONFIG_SPL_FAT_SUPPORT
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#ifdef CONFIG_SPL_OS_BOOT
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if (!spl_start_uboot()) {
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err = spl_load_image_fat_os(&mmc->block_dev,
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CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
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if (!err)
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return;
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}
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#endif
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err = spl_load_image_fat(&mmc->block_dev,
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CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
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CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
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if (!err)
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return;
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#endif
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#ifdef CONFIG_SPL_EXT_SUPPORT
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#ifdef CONFIG_SPL_OS_BOOT
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if (!spl_start_uboot()) {
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err = spl_load_image_ext_os(&mmc->block_dev,
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CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
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if (!err)
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return;
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}
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#endif
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err = spl_load_image_ext(&mmc->block_dev,
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CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
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CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
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if (!err)
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return;
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#endif
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#endif
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#ifdef CONFIG_SUPPORT_EMMC_BOOT
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case MMCSD_MODE_EMMCBOOT:
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/*
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* We need to check what the partition is configured to.
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* 1 and 2 match up to boot0 / boot1 and 7 is user data
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* which is the first physical partition (0).
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*/
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part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
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if (part == 7)
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part = 0;
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if (mmc_switch_part(0, part)) {
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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puts("spl: mmc partition switch failed\n");
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#endif
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hang();
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}
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#ifdef CONFIG_SPL_OS_BOOT
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if (!spl_start_uboot()) {
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err = mmc_load_image_raw_os(mmc);
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if (!err)
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return;
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}
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#endif
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err = mmc_load_image_raw_sector(mmc,
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
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if (!err)
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return;
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#endif
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case MMCSD_MODE_UNDEFINED:
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default:
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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if (err)
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puts("spl: mmc: no boot mode left to try\n");
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else
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puts("spl: mmc: wrong boot mode\n");
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#endif
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hang();
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}
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}
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