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 344042c..54b3b31 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 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot