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spl: MMC U-Boot image load from raw partition 

Raw images of U-Boot can be stored inside MMC partitions, so it makes sense to
read the partition table, looking for a partition number instead of using
a fixed sector address.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
[trini: Only add mmc_load_image_raw_partition() when
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION to avoid warning, add missing
conversion in spl_mmc_load_image()]
Signed-off-by: Tom Rini <trini@ti.com>
utp
Paul Kocialkowski 2014-11-08 23:14:56 +01:00 committed by Tom Rini
parent e2ccdf89a0
commit b97300b62f
2 changed files with 30 additions and 4 deletions
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4
README
View File

@ -3660,6 +3660,10 @@ FIT uImage format:
Address and partition on the MMC to load U-Boot from
when the MMC is being used in raw mode.
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
Partition on the MMC to load U-Boot from when the MMC is being
used in raw mode
CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR
Sector to load kernel uImage from when MMC is being
used in raw mode (for Falcon mode)

30
common/spl/spl_mmc.c
View File

@ -15,7 +15,7 @@
DECLARE_GLOBAL_DATA_PTR;
static int mmc_load_image_raw(struct mmc *mmc, unsigned long sector)
static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
{
unsigned long err;
u32 image_size_sectors;
@ -51,6 +51,22 @@ end:
return (err == 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;
if (get_partition_info(&mmc->block_dev, partition, &info)) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("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)
{
@ -64,7 +80,8 @@ static int mmc_load_image_raw_os(struct mmc *mmc)
return -1;
}
return mmc_load_image_raw(mmc, CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
return mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
}
#endif
@ -98,8 +115,13 @@ void spl_mmc_load_image(void)
#ifdef CONFIG_SPL_OS_BOOT
if (spl_start_uboot() || mmc_load_image_raw_os(mmc))
#endif
err = mmc_load_image_raw(mmc,
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
err = mmc_load_image_raw_partition(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
#else
err = mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
#endif
#if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
} else if (boot_mode == MMCSD_MODE_FS) {
debug("boot mode - FS\n");
@ -146,7 +168,7 @@ void spl_mmc_load_image(void)
#ifdef CONFIG_SPL_OS_BOOT
if (spl_start_uboot() || mmc_load_image_raw_os(mmc))
#endif
err = mmc_load_image_raw(mmc,
err = mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
#endif
} else {