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SPL: add support to boot from a partition type

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the socfpga bootrom supports mmc booting from either a raw image
starting at 0x0, or from a partition of type 0xa2.  This patch
adds support for locating the boot image in the first type 0xa2
partition found.

Assigned a partition number of -1 will cause a search for a
partition of type CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
and use it to find the u-boot image

Signed-off-by: Dalon Westergreen <dwesterg@gmail.com>
This commit is contained in:
Dalon Westergreen
2017-02-10 17:15:34 -08:00
committed by Tom Rini
parent bc1e0dd947
commit f0fb4fa7d5
5 changed files with 41 additions and 0 deletions
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16
common/spl/Kconfig
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@@ -96,6 +96,22 @@ config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
Address on the MMC to load U-Boot from, when the MMC is being used
in raw mode. Units: MMC sectors (1 sector = 512 bytes).
config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
bool "MMC raw mode: by partition type"
depends on SPL && DOS_PARTITION && \
SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
help
Use partition type for specifying U-Boot partition on MMC/SD in
raw mode. U-Boot will be loaded from the first partition of this
type to be found.
config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
hex "Partition Type on the MMC to load U-Boot from"
depends on SPL && SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
help
Partition Type on the MMC to load U-Boot from, when the MMC is being
used in raw mode.
config TPL
bool
depends on SPL && SUPPORT_TPL