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Commit bb1d18d1 authored by Carolyn Wyborny's avatar Carolyn Wyborny Committed by David S. Miller
Browse files

igb: Add additional get_phy_id call for i354 devices 



This patch fixes a problem where some ports can fail to initialize on a
cold boot. This patch adds an additional call to read the PHY id for i354
devices in order workaround the hardware problem.

Signed-off-by: default avatarCarolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 732bf15e

drivers/net/ethernet/intel/igb/e1000_82575.c

+4 −0
Original line number Diff line number Diff line
@@ -719,6 +719,10 @@ static s32 igb_get_phy_id_82575(struct e1000_hw *hw) 
	u32 ctrl_ext;

	u32 mdic;



	/* Extra read required for some PHY's on i354 */

	if (hw->mac.type == e1000_i354)

		igb_get_phy_id(hw);



	/* For SGMII PHYs, we try the list of possible addresses until

	 * we find one that works.  For non-SGMII PHYs

	 * (e.g. integrated copper PHYs), an address of 1 should