[U-Boot-Users] ARM AT91 Ethernet address register

Rafal Jaworowski raj at semihalf.com
Thu Feb 14 12:11:30 CET 2008


Rafal Jaworowski wrote:
> What is the reason the MAC address on the AT91 is written in the 2nd address
> register, leaving the first one out? Is there something particular about this?
> 
> See cpu/arm920t/at91rm9200/ether.c, eth_init()
> ...
> p_mac->EMAC_SA2L = ...
> ...
> 
> The reason I ask is this may confuse OS driver if no MAC address is found in
> the first register (which is the case for FreeBSD/ARM, for example).
> 

Hello Rick,

Perhaps you could shed some light on the above?

kind regards,
Rafal




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