linux-kernel - Re: [PATCH v2 2/2] ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels

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Message-ID: <20130204013408.GH14746@titan.lakedaemon.net>
Date:	Sun, 3 Feb 2013 20:34:08 -0500
From:	Jason Cooper <jason@...edaemon.net>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Andrew Lunn <andrew@...n.ch>,
	Russell King <linux@....linux.org.uk>,
	Simon Baatz <gmbnomis@...il.com>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 2/2] ARM: kirkwood: fix to retain gbe MAC addresses
 for DT kernels

On Wed, Jan 30, 2013 at 09:29:58PM +0100, Sebastian Hesselbarth wrote:
> The ethernet controller used on kirkwood looses its MAC address
> register contents when the corresponding clock is gated. As soon as
> mv643xx_eth is built as module, the clock gets gated and when loading
> the module, the MAC address is gone.
> 
> Proper DT support for the mv643xx_eth driver is expected soon, so we add
> a workaround to always enable ge0/ge1 clocks on kirkwood. This workaround
> is also already used on non-DT kirkwood kernels.
> 
> Reported-by: Simon Baatz <gmbnomis@...il.com>
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
> ---
> Changelog:
> [v2]
> - add note in patch description that MAC address is lost only when using
>   modular driver
> - add note in patch description that the workaround will be removed soon
> 
> Cc: Simon Baatz <gmbnomis@...il.com>
> Cc: Jason Cooper <jason@...edaemon.net>
> Cc: Andrew Lunn <andrew@...n.ch>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> ---
>  arch/arm/mach-kirkwood/board-dt.c |   24 +++++++++++++++---------
>  1 file changed, 15 insertions(+), 9 deletions(-)

Applied to mvebu/fixes with Simon's Tested-by:

thx,

Jason.
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