netdev - Re: [PATCH v2] net: fec_mpc52xx: Read MAC address from device-tree

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Date:	Tue, 12 Feb 2013 16:15:26 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	sr@...x.de
Cc:	netdev@...r.kernel.org, linuxppc-dev@...abs.org, agust@...x.de
Subject: Re: [PATCH v2] net: fec_mpc52xx: Read MAC address from device-tree

From: Stefan Roese <sr@...x.de>
Date: Tue, 12 Feb 2013 10:08:08 +0100

> Until now, the MPC5200 FEC ethernet driver relied upon the bootloader
> (U-Boot) to write the MAC address into the ethernet controller
> registers. The Linux driver should not rely on such a thing. So
> lets read the MAC address from the DT as it should be done here.
> 
> The following priority is now used to read the MAC address:
> 
> 1) First, try OF node MAC address, if not present or invalid, then:
> 
> 2) Read from MAC address registers, if invalid, then:
> 
> 3) Log a warning message, and choose a random MAC address.
> 
> This fixes a problem with a MPC5200 board that uses the SPL U-Boot
> version without FEC initialization before Linux booting for
> boot speedup.
> 
> Additionally a status line is now be printed upon successful
> driver probing, also displaying this MAC address.
> 
> Signed-off-by: Stefan Roese <sr@...x.de>

Applied.
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