diff options
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/ich8lan.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/ich8lan.c | 60 |
1 files changed, 41 insertions, 19 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index bbf70ba367da..e3a7b07df629 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -165,14 +165,14 @@ #define I217_EEE_100_SUPPORTED (1 << 1) /* 100BaseTx EEE supported */ /* Intel Rapid Start Technology Support */ -#define I217_PROXY_CTRL PHY_REG(BM_WUC_PAGE, 70) +#define I217_PROXY_CTRL BM_PHY_REG(BM_WUC_PAGE, 70) #define I217_PROXY_CTRL_AUTO_DISABLE 0x0080 #define I217_SxCTRL PHY_REG(BM_PORT_CTRL_PAGE, 28) -#define I217_SxCTRL_MASK 0x1000 +#define I217_SxCTRL_ENABLE_LPI_RESET 0x1000 #define I217_CGFREG PHY_REG(772, 29) -#define I217_CGFREG_MASK 0x0002 +#define I217_CGFREG_ENABLE_MTA_RESET 0x0002 #define I217_MEMPWR PHY_REG(772, 26) -#define I217_MEMPWR_MASK 0x0010 +#define I217_MEMPWR_DISABLE_SMB_RELEASE 0x0010 /* Strapping Option Register - RO */ #define E1000_STRAP 0x0000C @@ -325,24 +325,46 @@ static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val) **/ static bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw) { - u16 phy_reg; - u32 phy_id; + u16 phy_reg = 0; + u32 phy_id = 0; + s32 ret_val; + u16 retry_count; + + for (retry_count = 0; retry_count < 2; retry_count++) { + ret_val = e1e_rphy_locked(hw, PHY_ID1, &phy_reg); + if (ret_val || (phy_reg == 0xFFFF)) + continue; + phy_id = (u32)(phy_reg << 16); - e1e_rphy_locked(hw, PHY_ID1, &phy_reg); - phy_id = (u32)(phy_reg << 16); - e1e_rphy_locked(hw, PHY_ID2, &phy_reg); - phy_id |= (u32)(phy_reg & PHY_REVISION_MASK); + ret_val = e1e_rphy_locked(hw, PHY_ID2, &phy_reg); + if (ret_val || (phy_reg == 0xFFFF)) { + phy_id = 0; + continue; + } + phy_id |= (u32)(phy_reg & PHY_REVISION_MASK); + break; + } if (hw->phy.id) { if (hw->phy.id == phy_id) return true; - } else { - if ((phy_id != 0) && (phy_id != PHY_REVISION_MASK)) - hw->phy.id = phy_id; + } else if (phy_id) { + hw->phy.id = phy_id; + hw->phy.revision = (u32)(phy_reg & ~PHY_REVISION_MASK); return true; } - return false; + /* + * In case the PHY needs to be in mdio slow mode, + * set slow mode and try to get the PHY id again. + */ + hw->phy.ops.release(hw); + ret_val = e1000_set_mdio_slow_mode_hv(hw); + if (!ret_val) + ret_val = e1000e_get_phy_id(hw); + hw->phy.ops.acquire(hw); + + return !ret_val; } /** @@ -4089,12 +4111,12 @@ void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw) * power good. */ e1e_rphy_locked(hw, I217_SxCTRL, &phy_reg); - phy_reg |= I217_SxCTRL_MASK; + phy_reg |= I217_SxCTRL_ENABLE_LPI_RESET; e1e_wphy_locked(hw, I217_SxCTRL, phy_reg); /* Disable the SMB release on LCD reset. */ e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg); - phy_reg &= ~I217_MEMPWR; + phy_reg &= ~I217_MEMPWR_DISABLE_SMB_RELEASE; e1e_wphy_locked(hw, I217_MEMPWR, phy_reg); } @@ -4103,7 +4125,7 @@ void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw) * Support */ e1e_rphy_locked(hw, I217_CGFREG, &phy_reg); - phy_reg |= I217_CGFREG_MASK; + phy_reg |= I217_CGFREG_ENABLE_MTA_RESET; e1e_wphy_locked(hw, I217_CGFREG, phy_reg); release: @@ -4176,7 +4198,7 @@ void e1000_resume_workarounds_pchlan(struct e1000_hw *hw) ret_val = e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg); if (ret_val) goto release; - phy_reg |= I217_MEMPWR_MASK; + phy_reg |= I217_MEMPWR_DISABLE_SMB_RELEASE; e1e_wphy_locked(hw, I217_MEMPWR, phy_reg); /* Disable Proxy */ @@ -4186,7 +4208,7 @@ void e1000_resume_workarounds_pchlan(struct e1000_hw *hw) ret_val = e1e_rphy_locked(hw, I217_CGFREG, &phy_reg); if (ret_val) goto release; - phy_reg &= ~I217_CGFREG_MASK; + phy_reg &= ~I217_CGFREG_ENABLE_MTA_RESET; e1e_wphy_locked(hw, I217_CGFREG, phy_reg); release: if (ret_val) |