Set Static MAC address on STM32MP157 using OTP fuses

[sbate.1]

Hello,

I am trying to set a static MAC address on an STM32MP157 board via U-boot, I have been following this guide.
https://wiki.st.com/stm32mpu/wiki/How_to_update_OTP_with_U-Boot#:~:text=The%20fuse%20command%20allows%20you,(for%20a%20temporary%20update)

It seemed to work as the ethaddr has been set as seen in image1, however when I boot the board and check ifconfig the MAC address is not present and the board is still using a different MAC address on each boot.

Does anyone have any thoughts or ideas on what to do?

Regards

Stephen

[Erwan SZYMANSKI]

Hello @sbate.1 ,
Please can you first try to erase all your non volatile environment variable with a such command in U-boot : 

U-boot $> env default -a
U-boot $> env save
U-boot $> reset

According to Linux kernel driver code, a random MAC address is created when Linux fails to get a valid Ethernet MAC address (stmmac_main.c)

Kind regards,
Erwan.