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authorMax Krummenacher <max.krummenacher@toradex.com>2019-08-22 21:31:12 +0200
committerMax Krummenacher <max.krummenacher@toradex.com>2019-08-22 21:32:15 +0200
commit4f7863e34220e25ff49ebc4555dd819bb77280c6 (patch)
treece6d8b1ab46fc8dbbd8fefc3fd3917abca3809e2 /recipes-bsp/u-boot/files
parent6b384d407aaae9267700de0488086353b71bdbcd (diff)
u-boot-toradex-fw-utils: apalis-mx6: follow changed emmc instance
The kernel for Apalis iMX6 now uses mmc2 as the instance for the eMMC. Follow that. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'recipes-bsp/u-boot/files')
-rw-r--r--recipes-bsp/u-boot/files/apalis-imx6/fw_env.config17
-rw-r--r--recipes-bsp/u-boot/files/apalis-imx6/fw_unlock_mmc.sh6
2 files changed, 23 insertions, 0 deletions
diff --git a/recipes-bsp/u-boot/files/apalis-imx6/fw_env.config b/recipes-bsp/u-boot/files/apalis-imx6/fw_env.config
new file mode 100644
index 0000000..be25811
--- /dev/null
+++ b/recipes-bsp/u-boot/files/apalis-imx6/fw_env.config
@@ -0,0 +1,17 @@
+# 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 iMX6/Apalis iMX6
+# 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/mmcblk2boot0 -0x2200 0x2000
diff --git a/recipes-bsp/u-boot/files/apalis-imx6/fw_unlock_mmc.sh b/recipes-bsp/u-boot/files/apalis-imx6/fw_unlock_mmc.sh
new file mode 100644
index 0000000..130a425
--- /dev/null
+++ b/recipes-bsp/u-boot/files/apalis-imx6/fw_unlock_mmc.sh
@@ -0,0 +1,6 @@
+# Give fw_setenv mmcblkXboot0 write permissions
+fw_setenv() {
+ echo 0 > /sys/block/mmcblk2boot0/force_ro
+ /sbin/fw_setenv "$@"
+ echo 1 > /sys/block/mmcblk2boot0/force_ro
+}