Has anyone programmed a mac address fuse on IMX8m mini?

[floydbrown]

I am trying to Burn imx8M mini fuses for mac address 0, and have tried to use uboot (2019.04-4.19.35-1.1.0+g4d377539a1) fuse prog command.

I am trying:

fuse prog 9 0 f6200000

fuse prog 9 1 000a

but reading back results in zeros (and reading shadow regs also read zero)

Anybody have any thoughts on if this really is supposed to work or not?

Thanks

[floydbrown]

Yes it works, but you have to reset uboot to read the values.

[joanxie]

have you been fused it before? this is one time programmable registers