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u-boot-toradex-fw-utils: add colibri-imx7-emmc support

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This adds a usefull fw_env.config for colibri-imx7-emmc.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Fabio Berton <fabio.berton@ossystems.com.br>
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Max Krummenacher 2020-03-27 11:55:39 +01:00 committed by Otavio Salvador
parent 0858c7fa5b
commit a5c02bf0ba
1 changed files with 17 additions and 0 deletions
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recipes-bsp/u-boot/u-boot-toradex-fw-utils/colibri-imx7-emmc/fw_env.config Normal file
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# Configuration file for fw_(printenv/setenv) utility.
# Up to two entries are valid, in this case the redundant
# environment sector is assumed present.
# Device offset must be prefixed with 0x to be parsed as a hexadecimal value.
# On a block device a negative offset is treated as a backwards offset from the
# end of the device/partition, rather than a forwards offset from the start.
# Colibri iMX7 Dual 1GB (eMMC)
# U-Boot environment is stored at the end of the first eMMC boot partition
# hence use a negative value. The environment is just in front of the config
# block which occupies the last sector (hence -0x200)
# Note that /dev/mmcblk0boot0 by default is read only
# To use fw_setenv you have to first make it writeable, on the cmdline e.g. by
# $ echo 0 > /sys/block/mmcblk0boot0/force_ro
# Block device name Device offset Env. size
/dev/mmcblk0boot0 -0x2200 0x2000