[U-Boot] what's the uboot way to pass eth*addr to linux ?

Hello

I have a problem : my (coldfire) linux kernel does not reuse the mac addresses known by u-boot as ethaddr and eth1addr.

I have read doc/README.enetaddr, that states :

struct bd_info [...] are temporary copies of the MAC address only for the purpose of passing this information to an OS kernel we are about to boot.

but I see no field in bd_info that could be set before booting linux.

I thought that the address of the environment zone could be given to linux, but I do not see where either.

So what's the recommended/supported way to inform the kernel of the mac addresses of all the ethernet interfaces ?

Philippe