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authorBruce Allan <bruce.w.allan@intel.com>2012-12-12 08:45:51 +0400
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2013-01-27 13:07:35 +0400
commit6e928b721c73817cd20f7dc7a303b3b7e57bff1d (patch)
tree916892b28d2cb8b1ec655fb8f303dd64fdb53849 /drivers/net
parent94fb848bf43fae3410639fb2110a783200e9e1da (diff)
downloadlinux-6e928b721c73817cd20f7dc7a303b3b7e57bff1d.tar.xz
e1000e: prevent hardware from automatically configuring PHY on I217/I218
As done with the previous generation managed 82579, prevent the PHY from being put into an unknown state by blocking the hardware from automatically configuring the PHY as done with the previous generation managed 82579. Instead, the driver should configure the PHY with contents of the EEPROM image. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/e1000e/ich8lan.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 56cbfa7981eb..9a93223bd09a 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -363,10 +363,15 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
s32 ret_val;
u16 phy_reg;
+ /* Gate automatic PHY configuration by hardware on managed and
+ * non-managed 82579 and newer adapters.
+ */
+ e1000_gate_hw_phy_config_ich8lan(hw, true);
+
ret_val = hw->phy.ops.acquire(hw);
if (ret_val) {
e_dbg("Failed to initialize PHY flow\n");
- return ret_val;
+ goto out;
}
/* The MAC-PHY interconnect may be in SMBus mode. If the PHY is
@@ -387,13 +392,6 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
/* fall-through */
case e1000_pch2lan:
- /* Gate automatic PHY configuration by hardware on
- * non-managed 82579
- */
- if ((hw->mac.type == e1000_pch2lan) &&
- !(fwsm & E1000_ICH_FWSM_FW_VALID))
- e1000_gate_hw_phy_config_ich8lan(hw, true);
-
if (e1000_phy_is_accessible_pchlan(hw)) {
if (hw->mac.type == e1000_pch_lpt) {
/* Unforce SMBus mode in PHY */
@@ -461,6 +459,7 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
*/
ret_val = e1000e_phy_hw_reset_generic(hw);
+out:
/* Ungate automatic PHY configuration on non-managed 82579 */
if ((hw->mac.type == e1000_pch2lan) &&
!(fwsm & E1000_ICH_FWSM_FW_VALID)) {
@@ -763,13 +762,6 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
if (mac->type == e1000_ich8lan)
e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
- /* Gate automatic PHY configuration by hardware on managed
- * 82579 and i217
- */
- if ((mac->type == e1000_pch2lan || mac->type == e1000_pch_lpt) &&
- (er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
- e1000_gate_hw_phy_config_ich8lan(hw, true);
-
return 0;
}