From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] clk: mvebu: Do not gate ge0/1 and runit clocks on Kirkwood
Date: Sun, 27 Jan 2013 16:41:04 +0100 [thread overview]
Message-ID: <20130127164104.1b2e66e6@skate> (raw)
In-Reply-To: <20130127152837.GI29973@lunn.ch>
Dear Andrew Lunn,
On Sun, 27 Jan 2013 16:28:37 +0100, Andrew Lunn wrote:
> I've been thinking the same, store the MAC address before turning the
> clock off and restore it when enabling the clock. We have a need for
> special clocks on kirkwood anyway for turning off the sata and pcie
> PHYs. So adding special clocks for ethernet is not too big a deal.
At least on Armada 370/XP, U-Boot passes the MAC address through a
special ATAG. Willy Tarreau has written some code to read this special
ATAG and feed it into the Device Tree, so that we get the MAC address
as set by U-Boot. I unfortunately haven't had the time to look at
Willy's code and push it, but it does seem like an interesting solution.
Are you interested?
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-01-27 15:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-26 19:01 [PATCH] clk: mvebu: Do not gate ge0/1 and runit clocks on Kirkwood Simon Baatz
2013-01-26 23:50 ` Jason Cooper
2013-01-27 1:31 ` Simon Baatz
2013-01-27 10:15 ` Sebastian Hesselbarth
2013-01-27 10:56 ` Simon Baatz
2013-01-27 11:12 ` Sebastian Hesselbarth
2013-01-27 15:28 ` Andrew Lunn
2013-01-27 15:38 ` Sebastian Hesselbarth
2013-01-27 15:41 ` Thomas Petazzoni [this message]
2013-01-27 16:41 ` Jason Cooper
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