diff options
Diffstat (limited to 'drivers/net/e1000e/ich8lan.c')
-rw-r--r-- | drivers/net/e1000e/ich8lan.c | 78 |
1 files changed, 73 insertions, 5 deletions
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 9b09246..8b6ecd1 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -138,6 +138,10 @@ #define E1000_NVM_K1_CONFIG 0x1B /* NVM K1 Config Word */ #define E1000_NVM_K1_ENABLE 0x1 /* NVM Enable K1 bit */ +/* KMRN Mode Control */ +#define HV_KMRN_MODE_CTRL PHY_REG(769, 16) +#define HV_KMRN_MDIO_SLOW 0x0400 + /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ /* Offset 04h HSFSTS */ union ich8_hws_flash_status { @@ -219,6 +223,7 @@ static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active); static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw); static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw); static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link); +static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw); static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg) { @@ -270,7 +275,21 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; phy->id = e1000_phy_unknown; - e1000e_get_phy_id(hw); + ret_val = e1000e_get_phy_id(hw); + if (ret_val) + goto out; + if ((phy->id == 0) || (phy->id == PHY_REVISION_MASK)) { + /* + * In case the PHY needs to be in mdio slow mode (eg. 82577), + * set slow mode and try to get the PHY id again. + */ + ret_val = e1000_set_mdio_slow_mode_hv(hw); + if (ret_val) + goto out; + ret_val = e1000e_get_phy_id(hw); + if (ret_val) + goto out; + } phy->type = e1000e_get_phy_type_from_id(phy->id); switch (phy->type) { @@ -292,6 +311,7 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) break; } +out: return ret_val; } @@ -454,6 +474,8 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_adapter *adapter) mac->rar_entry_count--; /* Set if manageability features are enabled. */ mac->arc_subsystem_valid = true; + /* Adaptive IFS supported */ + mac->adaptive_ifs = true; /* LED operations */ switch (mac->type) { @@ -1074,16 +1096,44 @@ out: /** + * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode + * @hw: pointer to the HW structure + **/ +static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw) +{ + s32 ret_val; + u16 data; + + ret_val = e1e_rphy(hw, HV_KMRN_MODE_CTRL, &data); + if (ret_val) + return ret_val; + + data |= HV_KMRN_MDIO_SLOW; + + ret_val = e1e_wphy(hw, HV_KMRN_MODE_CTRL, data); + + return ret_val; +} + +/** * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be * done after every PHY reset. **/ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) { s32 ret_val = 0; + u16 phy_data; if (hw->mac.type != e1000_pchlan) return ret_val; + /* Set MDIO slow mode before any other MDIO access */ + if (hw->phy.type == e1000_phy_82577) { + ret_val = e1000_set_mdio_slow_mode_hv(hw); + if (ret_val) + goto out; + } + if (((hw->phy.type == e1000_phy_82577) && ((hw->phy.revision == 1) || (hw->phy.revision == 2))) || ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) { @@ -1116,16 +1166,32 @@ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) hw->phy.addr = 1; ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0); + hw->phy.ops.release(hw); if (ret_val) goto out; - hw->phy.ops.release(hw); /* * Configure the K1 Si workaround during phy reset assuming there is * link so that it disables K1 if link is in 1Gbps. */ ret_val = e1000_k1_gig_workaround_hv(hw, true); + if (ret_val) + goto out; + /* Workaround for link disconnects on a busy hub in half duplex */ + ret_val = hw->phy.ops.acquire(hw); + if (ret_val) + goto out; + ret_val = hw->phy.ops.read_reg_locked(hw, + PHY_REG(BM_PORT_CTRL_PAGE, 17), + &phy_data); + if (ret_val) + goto release; + ret_val = hw->phy.ops.write_reg_locked(hw, + PHY_REG(BM_PORT_CTRL_PAGE, 17), + phy_data & 0x00FF); +release: + hw->phy.ops.release(hw); out: return ret_val; } @@ -1182,6 +1248,7 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) /* Allow time for h/w to get to a quiescent state after reset */ mdelay(10); + /* Perform any necessary post-reset workarounds */ if (hw->mac.type == e1000_pchlan) { ret_val = e1000_hv_phy_workarounds_ich8lan(hw); if (ret_val) @@ -2482,6 +2549,10 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) if (!ret_val) e1000_release_swflag_ich8lan(hw); + /* Perform any necessary post-reset workarounds */ + if (hw->mac.type == e1000_pchlan) + ret_val = e1000_hv_phy_workarounds_ich8lan(hw); + if (ctrl & E1000_CTRL_PHY_RST) ret_val = hw->phy.ops.get_cfg_done(hw); @@ -2526,9 +2597,6 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) kab |= E1000_KABGTXD_BGSQLBIAS; ew32(KABGTXD, kab); - if (hw->mac.type == e1000_pchlan) - ret_val = e1000_hv_phy_workarounds_ich8lan(hw); - out: return ret_val; } |