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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: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@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:
Carolyn Wyborny 2013-09-10 11:57:16 -07:00 committed by David S. Miller
parent 732bf15efc
commit bb1d18d1ad
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/intel/igb/e1000_82575.c
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@ -719,6 +719,10 @@ static s32 igb_get_phy_id_82575(struct e1000_hw *hw)
u32 ctrl_ext; u32 ctrl_ext;
u32 mdic; 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 /* For SGMII PHYs, we try the list of possible addresses until
* we find one that works. For non-SGMII PHYs * we find one that works. For non-SGMII PHYs
* (e.g. integrated copper PHYs), an address of 1 should * (e.g. integrated copper PHYs), an address of 1 should