Re: [RFC] [PATCH] Device Tree on ARM platform

From: Timur Tabi
Date: Wed May 27 2009 - 16:30:38 EST

David Miller wrote:

> It depends. Some devices have EEPROM's that store the permanently
> assigned MAC address, some have NVRAM for this, and yet other's put it
> into the PCI ROM.

Well, I specifically said "isn't already programmed in the hardware". I wasn't talking about just the NIC.

> Some platforms that have real OF device trees often do not put the
> permanent MAC address into the EEPROM or NVRAM even if it is
> customary to do so on a particular device. The MAC has to be
> obtained from the OF device tree.

Sorry, you're not answering my question. I asked what do drivers do when the MAC address is not in the OF tree, and it is not programmed in hardware (any hardware).

Timur Tabi
Linux kernel developer at Freescale
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