linux-kernel - Re: [RFC] [PATCH] Device Tree on ARM platform

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Message-ID: <20090527232636.GO6805@pengutronix.de>
Date:	Thu, 28 May 2009 01:26:36 +0200
From:	Robert Schwebel <r.schwebel@...gutronix.de>
To:	David Miller <davem@...emloft.net>
Cc:	timur@...escale.com, scottwood@...escale.com,
	rmk+lkml@....linux.org.uk, jacmet@...site.dk,
	r.schwebel@...gutronix.de, devicetree-discuss@...abs.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk, yuan-bo.ye@...orola.com
Subject: Re: [RFC] [PATCH] Device Tree on ARM platform

On Wed, May 27, 2009 at 01:55:00PM -0700, David Miller wrote:
> > 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).
>
> They either fail to probe the device or use a random MAC address,
> the later of which is severely frowned upon.

For embedded, having no dedicated eeprom for the MAC address but
defining them from the bootloader's configuration space is the standard
use case.

rsc
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