Access u-boot varibale from linux user space

kartheek

Hi,

Processor: IMX8M PLUS

Yocto : 5.15-kirkstone

While booting through SD card able to access fw_printenv/setenv by adding below line in image recipe of yocto build.

IMAGE_INSTALL += " u-boot-fw-utils"

u-boot configuration is as below.

CONFIG_ENV_SIZE=0x80000
CONFIG_ENV_OFFSET=0x380000
CONFIG_ENV_IS_NOWHERE=y
CONFIG_ENV_IS_IN_MMC=y
CONFIG_SYS_MMC_ENV_DEV=1
CONFIG_SYS_MMC_ENV_PART=0

But when executing those commands on target gives below error.

~# fw_printenv
Configuration file wrong or corrupted

Kindly suggest a procedure to make fw_printenv/setenv work.

Thanks,
Kartheek

Zhiming_Liu

Hi,

Please refer patch here.