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spl: mmc: make eMMC HW boot partition configuration optional

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Loading U-Boot on i.MX8QXP MEK board is broken since recent changes
in spl_mmc:

  U-Boot SPL 2019.10-00162-gff5bd397e4 (Oct 18 2019 - 15:50:45 +0200)
  Normal Boot
  WDT:   Not found!
  Trying to boot from MMC2_2
  Load image from MMC/SD 0x46400
  spl: mmc partition switch failed
  SPL: failed to boot from all boot devices
  ### ERROR ### Please RESET the board ###

The newly added CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION option
is selected automatically and overrides the EXT_CSC_PART_CONFIG
configurations with default value, always selecting the eMMC boot
partition 1. Boards which place U-Boot image in other partitions
became not bootable.

Fix this by making the eMMC HW boot partition selection optional.

Fixes: 17241ea054 (spl: mmc: Add option to set eMMC HW boot partition)
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
This commit is contained in:
Anatolij Gustschin 2019-10-18 21:38:33 +02:00 committed by Tom Rini
parent 4b5c4dd93a
commit 32ded5022e
1 changed files with 22 additions and 6 deletions
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28
common/spl/Kconfig
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@ -325,12 +325,6 @@ 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_EMMC_BOOT_PARTITION
int "Number of the eMMC boot partition to use"
default 1
help
eMMC boot partition number to use when the eMMC in raw mode.
config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
bool "MMC Raw mode: by partition"
help
@ -359,6 +353,28 @@ config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
Partition Type on the MMC to load U-Boot from, when the MMC is being
used in raw mode.
config SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG
bool "Override eMMC EXT_CSC_PART_CONFIG by user defined partition"
depends on SUPPORT_EMMC_BOOT
help
eMMC boot partition is normally configured by the bits of the EXT_CSD
register (EXT_CSC_PART_CONFIG), BOOT_PARTITION_ENABLE field. In some
cases it might be required in SPL to load the image from different
partition than the partition selected by EXT_CSC_PART_CONFIG register.
Enable this option if you intend to use an eMMC boot partition other
then selected via EXT_CSC_PART_CONFIG register and specify the custom
partition number by the CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
option.
config SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
int "Number of the eMMC boot partition to use"
depends on SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG
default 1
help
eMMC boot partition number to use when the eMMC in raw mode and
the eMMC EXT_CSC_PART_CONFIG selection should be overridden in SPL
by user defined partition number.
config SPL_CRC32_SUPPORT
bool "Support CRC32"
default y if SPL_LEGACY_IMAGE_SUPPORT