linux-kernel - Re: [PATCH v4 06/12] ARM: dove: add gigabit ethernet and mvmdio device tree nodes

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Message-ID: <20130522170157.GF31290@titan.lakedaemon.net>
Date:	Wed, 22 May 2013 13:01:57 -0400
From:	Jason Cooper <jason@...edaemon.net>
To:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	"tiejun.chen" <tiejun.chen@...driver.com>,
	Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org, David Miller <davem@...emloft.net>,
	Lennert Buytenhek <buytenh@...tstofly.org>
Subject: Re: [PATCH v4 06/12] ARM: dove: add gigabit ethernet and mvmdio
 device tree nodes

On Wed, May 22, 2013 at 10:59:08AM -0600, Jason Gunthorpe wrote:
> On Wed, May 22, 2013 at 09:10:10AM -0400, Jason Cooper wrote:
> 
> > iirc, our solution to this was to parse the ATAGs for the mac addr and
> > update the appended dtb.  This way, module load and unload would work
> > without loosing the mac address.  I believe Jason Gunthorpe has a patch
> > to atags_to_fdt() for this...  This should allow us to get rid of the
> > clocks hack.
> 
> Sorry, no, we don't use ATAGs here, our platforms start the kernel
> with a correct DTB that has the correct mac address to use. My patch
> was to have the driver accept it, and I think Sebastian has already
> got that functionality...

Yes, you're right.

thx,

Jason.
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