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sunxi: Select environment MMC based on boot device

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Currently, the environment is always stored in eMMC if eMMC is enabled
in the config. This means images written to SD and eMMC will cross-
contaminate their environments unless the configuration is changed.

By dropping the device number from the environment location string and
implementing mmc_get_env_dev, we will always use the environment from
the boot device when booting from SD/eMMC.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Samuel Holland
2021-04-18 22:16:21 -05:00
committed by Andre Przywara
parent 22ecb12132
commit 1011ebc72b
2 changed files with 15 additions and 2 deletions
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3
env/Kconfig vendored
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@@ -446,8 +446,7 @@ config ENV_FAT_DEVICE_AND_PART
depends on ENV_IS_IN_FAT
default "0:1" if TI_COMMON_CMD_OPTIONS
default "0:auto" if ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
default "0:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA = -1
default "1:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA != -1
default ":auto" if ARCH_SUNXI
default "0" if ARCH_AT91
help
Define this to a string to specify the partition of the device. It can