[PATCH] defconfig: espressobin: enable NET_RANDOM_ETHADDR

[Pali Rohár]

On Monday 21 September 2020 15:21:44 Marek Behun wrote:
> On Mon, 21 Sep 2020 15:05:22 +0200
> Pali Rohár <pali at kernel.org> wrote:
> 
> > Moreover CONFIG_NET_RANDOM_ETHADDR introduce another issue. In case
> > there is no valid mac address, U-Boot generates one. But it does not
> > pass this generates mac address to kernel and therefore kernel generates
> > another new random mac address.
> 
> I think it does :) At least on A3720, if the net controller has MAC
> address set by U-Boot, I think the same one will be used by kernel.

I mean the case when mac address is not already set in env. The case
when CONFIG_NET_RANDOM_ETHADDR code configure mac address, when env
variable is not set.

U-Boot set mac address into FDT file only from env.

turris_mox.c code calls eth_env_set_enetaddr() to set env with correct
mac address.