In message cbc1ab7705071906205ac8b0b9@mail.gmail.com you wrote:
Ok, i was just wondering if Linux try to access to the environnment variable "ethaddr" to get it's value (i've forget one or two words in my question and i ask you to excuse me for that)
This is obviously a question of which ethernet driver you are using. On PowerPC the current standard is to pass the MAC addres(es) as part of the bd_info structure; other architectures have different ways, or the one who implements the driver invents one.
Of course it is also possible to access the U-Boot environment for this purpose, but to me this seems to be overkill.
but to access to ethaddr, someone say me that i can modify the Linux driver to catch the ethaddr by a custom option in my bootargs
Yes, this is an option, too.
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And please stop posting HTML.
Post plain text only.
Best regards,
Wolfgang Denk