From 921aa7491201b238589ab9f94184b18a1ed00e12 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Wed, 21 Jan 2009 14:42:28 -0800 Subject: [PATCH] igb: make certain to power on optics for 82576 fiber nics It appears that a step was missed in the initialization of 82576 fiber nics that resulted in it not powering on the optics. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/igb/e1000_82575.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c index f5e2e7235fcb..9b367ba8e26f 100644 --- a/drivers/net/igb/e1000_82575.c +++ b/drivers/net/igb/e1000_82575.c @@ -1103,6 +1103,13 @@ static s32 igb_setup_fiber_serdes_link_82575(struct e1000_hw *hw) E1000_CTRL_SWDPIN1; wr32(E1000_CTRL, reg); + /* Power on phy for 82576 fiber adapters */ + if (hw->mac.type == e1000_82576) { + reg = rd32(E1000_CTRL_EXT); + reg &= ~E1000_CTRL_EXT_SDP7_DATA; + wr32(E1000_CTRL_EXT, reg); + } + /* Set switch control to serdes energy detect */ reg = rd32(E1000_CONNSW); reg |= E1000_CONNSW_ENRGSRC;