Assigning the UUID discovery path to a tweakable environment variable means
that later steps in the boot process - particularly a boot script can
change the target root partition of a particular Linux boot.
Retargeting the rootfs is an important feature when doing ping/pong
upgrades allowing a boot script to select ping or pong as necessary without
reprogramming the bootloader.
Signed-off-by: Bryan O'Donoghue <bryan.odonog...@linaro.org>
---
include/configs/warp7.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/configs/warp7.h b/include/configs/warp7.h
index a92e675..f2ee09b 100644
--- a/include/configs/warp7.h
+++ b/include/configs/warp7.h
@@ -45,7 +45,8 @@
"ip_dyn=yes\0" \
"mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \
"mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \
- "finduuid=part uuid mmc 0:2 uuid\0" \
+ "rootpart=" __stringify(CONFIG_WARP7_ROOT_PART) "\0" \
+ "finduuid=part uuid mmc 0:${rootpart} uuid\0" \
"mmcargs=setenv bootargs console=${console},${baudrate} " \
"root=PARTUUID=${uuid} rootwait rw\0" \
"loadbootscript=" \
--
2.7.4
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