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: NCarolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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

@@ -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