redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

igb: make certain to power on optics for 82576 fiber nics

Browse source 
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 <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-01-21 14:42:28 -08:00 committed by David S. Miller
parent 5851765cca
commit 921aa74912
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/net/igb/e1000_82575.c
View file

@ -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;