Messages in this thread | | | Date | Sun, 3 Feb 2013 00:49:20 +0100 | From | Simon Baatz <> | Subject | Re: [PATCH v2 2/2] ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels |
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Hi Sebastian, Jason,
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@gmail.com> > Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested this on IB-NAS6210 (kirkwood, single GBE interface). Using mv643xx_eth as a module works again now and yields
# cat /sys/kernel/debug/clk/tclk/ge[01]/clk_enable_count 2 1
as expected.
- Simon
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