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/*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
*
* Aneesh V <aneesh@ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <spl.h>
#include <linux/compiler.h>
#include <asm/u-boot.h>
#include <mmc.h>
#include <image.h>
DECLARE_GLOBAL_DATA_PTR;
static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
{
unsigned long count;
u32 image_size_sectors;
struct image_header *header;
header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
sizeof(struct image_header));
/* read image header to find the image size & load address */
count = mmc->block_dev.block_read(0, sector, 1, header);
if (count == 0)
goto end;
if (image_get_magic(header) != IH_MAGIC)
return -1;
spl_parse_image_header(header);
/* convert size to sectors - round up */
image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
mmc->read_bl_len;
/* Read the header too to avoid extra memcpy */
count = mmc->block_dev.block_read(0, sector, image_size_sectors,
(void *) spl_image.load_addr);
end:
if (count == 0) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("spl: mmc block read error\n");
#endif
return -1;
}
return 0;
}
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
{
disk_partition_t info;
int err;
err = get_partition_info(&mmc->block_dev, partition, &info);
if (err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("spl: partition error\n");
#endif
return -1;
}
return mmc_load_image_raw_sector(mmc, info.start);
}
#endif
#ifdef CONFIG_SPL_OS_BOOT
static int mmc_load_image_raw_os(struct mmc *mmc)
{
unsigned long count;
count = mmc->block_dev.block_read(0,
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
(void *) CONFIG_SYS_SPL_ARGS_ADDR);
if (count == 0) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("spl: mmc block read error\n");
#endif
return -1;
}
return mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
}
#endif
void spl_mmc_load_image(void)
{
struct mmc *mmc;
u32 boot_mode;
int err;
__maybe_unused int part;
mmc_initialize(gd->bd);
/* We register only one device. So, the dev id is always 0 */
mmc = find_mmc_device(0);
if (!mmc) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("spl: mmc device not found\n");
#endif
hang();
}
err = mmc_init(mmc);
if (err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("spl: mmc init failed with error: %d\n", err);
#endif
hang();
}
boot_mode = spl_boot_mode();
switch (boot_mode) {
case MMCSD_MODE_RAW:
debug("spl: mmc boot mode: raw\n");
#ifdef CONFIG_SPL_OS_BOOT
if (!spl_start_uboot()) {
err = mmc_load_image_raw_os(mmc);
if (!err)
return;
}
#endif
#if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
err = mmc_load_image_raw_partition(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
if (!err)
return;
#elif defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
err = mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
if (!err)
return;
#endif
case MMCSD_MODE_FS:
debug("spl: mmc boot mode: fs\n");
#ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
#ifdef CONFIG_SPL_FAT_SUPPORT
#ifdef CONFIG_SPL_OS_BOOT
if (!spl_start_uboot()) {
err = spl_load_image_fat_os(&mmc->block_dev,
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
if (!err)
return;
}
#endif
#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
err = spl_load_image_fat(&mmc->block_dev,
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
if (!err)
return;
#endif
#endif
#ifdef CONFIG_SPL_EXT_SUPPORT
#ifdef CONFIG_SPL_OS_BOOT
if (!spl_start_uboot()) {
err = spl_load_image_ext_os(&mmc->block_dev,
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
if (!err)
return;
}
#endif
#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
err = spl_load_image_ext(&mmc->block_dev,
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
if (!err)
return;
#endif
#endif
#endif
#ifdef CONFIG_SUPPORT_EMMC_BOOT
case MMCSD_MODE_EMMCBOOT:
/*
* We need to check what the partition is configured to.
* 1 and 2 match up to boot0 / boot1 and 7 is user data
* which is the first physical partition (0).
*/
part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
if (part == 7)
part = 0;
if (mmc_switch_part(0, part)) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("spl: mmc partition switch failed\n");
#endif
hang();
}
#ifdef CONFIG_SPL_OS_BOOT
if (!spl_start_uboot()) {
err = mmc_load_image_raw_os(mmc);
if (!err)
return;
}
#endif
#if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
err = mmc_load_image_raw_partition(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
if (!err)
return;
#elif defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
err = mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
if (!err)
return;
#endif
#endif
case MMCSD_MODE_UNDEFINED:
default:
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
if (err)
puts("spl: mmc: no boot mode left to try\n");
else
puts("spl: mmc: wrong boot mode\n");
#endif
hang();
}
}
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