2020-05-05 04:42 AM
Hello,
I am using STM32MP157C-DK2 evalution board and I successfully booted the board with STM yocto,now I was trying to add a new environment variable in the Uboot.But I was not able to get how to do that.Can anyone suggest how to do this.
Regards
Srikanth.
2020-05-06 03:51 AM
Hello Srikanth,
E.g. you can carefully adapt following patch file - look for CONFIG_EXTRA_ENV_SETTINGS:
/layers/meta-st/meta-st-stm32mp/recipes-bsp/u-boot/u-boot-stm32mp/0005-ARM-v2018.11-stm32mp-r1-MISC.patch
After rebuild you can also verify that your new varible was correctly added in your build directory
/build-openstlinuxweston-stm32mp1/tmp-glibc/work-shared/stm32mp1/uboot-source/include/configs/stm32mp1.h
Best regards,
Milan
2020-05-09 02:24 AM
Hai mleo,
Thanks for the reply I found the patch file in the path suggested by I came to know from that patch yocto is getting some of the uboot environment variables like kernel_addr..etc.But I was new to this yocto can you help me how to add my variable and generate the patch file to get the uboot environment variable.
Regards
Srikanth.