From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Schwebel Subject: Re: [RFC] [PATCH] Device Tree on ARM platform Date: Thu, 28 May 2009 01:26:36 +0200 Message-ID: <20090527232636.GO6805@pengutronix.de> References: <4A1D9A66.5020002@freescale.com> <20090527.132553.40558501.davem@davemloft.net> <4A1DA24D.5000101@freescale.com> <20090527.135500.217447785.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20090527.135500.217447785.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-mnsaURCQ41sdnm+yROfE0A@public.gmane.org Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-mnsaURCQ41sdnm+yROfE0A@public.gmane.org To: David Miller Cc: rmk+lkml-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-xIg/pKzrS19vn6HldHNs0ANdhmdF6hFW@public.gmane.org, scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org, yuan-bo.ye-3WKxDLwmzFNWk0Htik3J/w@public.gmane.org, timur-KZfg59tc24xl57MIdRCFDg@public.gmane.org List-Id: devicetree@vger.kernel.org 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 -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |