Draft: [iMX6][SPL] Enable boot from mmcblkXbootY
Assign a value to CONFIG_SUPPORT_EMMC_BOOT
in mx6_common.h
to let the
proper boot mode being selected.
For iMX6, in arch/arm/mach-imx/spl.c
, the config is checked with
IS_ENABLED()
and it needs to have a value in order to pass the check.
This caused the boot mode always to MMCSD_MODE_RAW
with the former
definition.
Discussion:
- the first commit modifies Santino's defconfig to boot from mmcblk0boot0 and considering that all the other boards boots from mmcblk0 - that's not uniform.
- probably this MR should be only with the last commit as the first commit refers only to a Santino board.