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Commit 921aa749 authored by Alexander Duyck's avatar Alexander Duyck Committed by David S. Miller
Browse files

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: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5851765c

drivers/net/igb/e1000_82575.c

+7 −0
Original line number Diff line number Diff line
@@ -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;