e1000e: clear PHY wakeup bit after LCD reset on 82577/82578

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Performing a dummy read of the PHY Wakeup Control (WUC) register clears the
wakeup enable bit set by an PHY reset.  If this bit remains set, link
problems may occur.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Bruce Allan 2009-10-26 11:22:47 +00:00 • committed by David S. Miller

parent 39305965f3

commit db2932ecf8

1 changed files with 9 additions and 1 deletions

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10

drivers/net/e1000e/ich8lan.c

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