[U-Boot-Users] Changing ethaddr

Tue Jul 31 13:49:44 CEST 2007

Hello Javier,

as you can read in the "README" file, ethaddr is a special environment
variable and you can set just once. You could change it in your
../include/configs/<board>.h, where you define your default environment
variables using the common format:
#define CONFIG_ETHADDR  <your ethernet address>

Another option is to store the MAC in a flash address and to read it from
there, but it is a bit more complicated and you should look at some
examples.

Cheers,

Raúl Moreno

"Javier Gracia" <javier.gracia.castro at gmail.com>
"Javier Gracia"
Enviado por: u-boot-users-bounces at lists.sourceforge.net
31/07/2007 13:40

 Para:   u-boot-users at lists.sourceforge.net                                                                            

 cc:                                                                                                                   

 Asunto: [U-Boot-Users] Changing ethaddr                                                                               

Hello, I am working with the Atmel board AT91RM9200-EK and I would
like to change the MAC address from U-boot. If I do: setenv ethaddr
(new_mac), I obtain: Can't overwrite "ethaddr". I am using a version
of U-boot from Atmel (u-boot-1.1.5_atmel_1.2). How can I change this
hw address?

Thanks,
Javier

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