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spl_mmc: add Falcon mode support for raw variant

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If Falcon mode support is enabled (and the system isn't directed into
booting u-boot), it will instead try to load kernel from sector
CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR and
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS of kernel argument parameters
starting from sector CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
This commit is contained in:
Peter Korsgaard 2013-05-13 08:36:29 +00:00 committed by Tom Rini
parent 721931f805
commit 2b75b0ad3a
2 changed files with 28 additions and 0 deletions
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10
README
View File

@ -2932,6 +2932,16 @@ FIT uImage format:
Address, size and 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)
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS
Sector and number of sectors to load kernel argument
parameters from when MMC is being used in raw mode
(for falcon mode)
CONFIG_SPL_FAT_SUPPORT
Support for fs/fat/libfat.o in SPL binary

18
common/spl/spl_mmc.c
View File

@ -63,6 +63,21 @@ end:
return (err == 0);
}
#ifdef CONFIG_SPL_OS_BOOT
static int mmc_load_image_raw_os(struct mmc *mmc)
{
if (!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)) {
printf("mmc args blk read error\n");
return -1;
}
return mmc_load_image_raw(mmc, CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
}
#endif
#ifdef CONFIG_SPL_FAT_SUPPORT
static int mmc_load_image_fat(struct mmc *mmc, const char *filename)
{
@ -130,6 +145,9 @@ void spl_mmc_load_image(void)
boot_mode = spl_boot_mode();
if (boot_mode == MMCSD_MODE_RAW) {
debug("boot mode - RAW\n");
#ifdef CONFIG_SPL_OS_BOOT
if (spl_start_uboot() || mmc_load_image_raw_os(mmc))
#endif
err = mmc_load_image_raw(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
#ifdef CONFIG_SPL_FAT_SUPPORT