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

Rafal Jaworowski raj at semihalf.com
Tue Feb 12 12:52:02 CET 2008


Hi Peter,

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).

Rafal




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