diff options
Diffstat (limited to 'drivers/net/e1000e/ich8lan.c')
| -rw-r--r-- | drivers/net/e1000e/ich8lan.c | 191 |
1 files changed, 145 insertions, 46 deletions
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 3369d1f6a39..c1752124f3c 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -275,6 +275,19 @@ static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val) #define ew16flash(reg,val) __ew16flash(hw, (reg), (val)) #define ew32flash(reg,val) __ew32flash(hw, (reg), (val)) +static void e1000_toggle_lanphypc_value_ich8lan(struct e1000_hw *hw) +{ + u32 ctrl; + + ctrl = er32(CTRL); + ctrl |= E1000_CTRL_LANPHYPC_OVERRIDE; + ctrl &= ~E1000_CTRL_LANPHYPC_VALUE; + ew32(CTRL, ctrl); + udelay(10); + ctrl &= ~E1000_CTRL_LANPHYPC_OVERRIDE; + ew32(CTRL, ctrl); +} + /** * e1000_init_phy_params_pchlan - Initialize PHY function pointers * @hw: pointer to the HW structure @@ -284,18 +297,21 @@ static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val) static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; - u32 ctrl, fwsm; + u32 fwsm; s32 ret_val = 0; phy->addr = 1; phy->reset_delay_us = 100; + phy->ops.set_page = e1000_set_page_igp; phy->ops.read_reg = e1000_read_phy_reg_hv; phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked; + phy->ops.read_reg_page = e1000_read_phy_reg_page_hv; phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan; phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan; phy->ops.write_reg = e1000_write_phy_reg_hv; phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked; + phy->ops.write_reg_page = e1000_write_phy_reg_page_hv; phy->ops.power_up = e1000_power_up_phy_copper; phy->ops.power_down = e1000_power_down_phy_copper_ich8lan; phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; @@ -308,13 +324,7 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) */ fwsm = er32(FWSM); if (!(fwsm & E1000_ICH_FWSM_FW_VALID) && !e1000_check_reset_block(hw)) { - ctrl = er32(CTRL); - ctrl |= E1000_CTRL_LANPHYPC_OVERRIDE; - ctrl &= ~E1000_CTRL_LANPHYPC_VALUE; - ew32(CTRL, ctrl); - udelay(10); - ctrl &= ~E1000_CTRL_LANPHYPC_OVERRIDE; - ew32(CTRL, ctrl); + e1000_toggle_lanphypc_value_ich8lan(hw); msleep(50); /* @@ -882,8 +892,13 @@ static void e1000_release_swflag_ich8lan(struct e1000_hw *hw) u32 extcnf_ctrl; extcnf_ctrl = er32(EXTCNF_CTRL); - extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; - ew32(EXTCNF_CTRL, extcnf_ctrl); + + if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) { + extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; + ew32(EXTCNF_CTRL, extcnf_ctrl); + } else { + e_dbg("Semaphore unexpectedly released by sw/fw/hw\n"); + } mutex_unlock(&swflag_mutex); } @@ -1376,14 +1391,11 @@ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) 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); + ret_val = hw->phy.ops.read_reg_locked(hw, BM_PORT_GEN_CFG, &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); + ret_val = hw->phy.ops.write_reg_locked(hw, BM_PORT_GEN_CFG, + phy_data & 0x00FF); release: hw->phy.ops.release(hw); out: @@ -1397,17 +1409,36 @@ out: void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw) { u32 mac_reg; - u16 i; + u16 i, phy_reg = 0; + s32 ret_val; + + ret_val = hw->phy.ops.acquire(hw); + if (ret_val) + return; + ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg); + if (ret_val) + goto release; /* Copy both RAL/H (rar_entry_count) and SHRAL/H (+4) to PHY */ for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) { mac_reg = er32(RAL(i)); - e1e_wphy(hw, BM_RAR_L(i), (u16)(mac_reg & 0xFFFF)); - e1e_wphy(hw, BM_RAR_M(i), (u16)((mac_reg >> 16) & 0xFFFF)); + hw->phy.ops.write_reg_page(hw, BM_RAR_L(i), + (u16)(mac_reg & 0xFFFF)); + hw->phy.ops.write_reg_page(hw, BM_RAR_M(i), + (u16)((mac_reg >> 16) & 0xFFFF)); + mac_reg = er32(RAH(i)); - e1e_wphy(hw, BM_RAR_H(i), (u16)(mac_reg & 0xFFFF)); - e1e_wphy(hw, BM_RAR_CTRL(i), (u16)((mac_reg >> 16) & 0x8000)); + hw->phy.ops.write_reg_page(hw, BM_RAR_H(i), + (u16)(mac_reg & 0xFFFF)); + hw->phy.ops.write_reg_page(hw, BM_RAR_CTRL(i), + (u16)((mac_reg & E1000_RAH_AV) + >> 16)); } + + e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg); + +release: + hw->phy.ops.release(hw); } /** @@ -1726,9 +1757,12 @@ static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw) break; } - /* Dummy read to clear the phy wakeup bit after lcd reset */ - if (hw->mac.type >= e1000_pchlan) - e1e_rphy(hw, BM_WUC, ®); + /* Clear the host wakeup bit after lcd reset */ + if (hw->mac.type >= e1000_pchlan) { + e1e_rphy(hw, BM_PORT_GEN_CFG, ®); + reg &= ~BM_WUC_HOST_WU_BIT; + e1e_wphy(hw, BM_PORT_GEN_CFG, reg); + } /* Configure the LCD with the extended configuration region in NVM */ ret_val = e1000_sw_lcd_config_ich8lan(hw); @@ -3059,7 +3093,7 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) msleep(20); if (!ret_val) - e1000_release_swflag_ich8lan(hw); + mutex_unlock(&swflag_mutex); if (ctrl & E1000_CTRL_PHY_RST) { ret_val = hw->phy.ops.get_cfg_done(hw); @@ -3127,11 +3161,13 @@ static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw) /* * The 82578 Rx buffer will stall if wakeup is enabled in host and - * the ME. Reading the BM_WUC register will clear the host wakeup bit. + * the ME. Disable wakeup by clearing the host wakeup bit. * Reset the phy after disabling host wakeup to reset the Rx buffer. */ if (hw->phy.type == e1000_phy_82578) { - e1e_rphy(hw, BM_WUC, &i); + e1e_rphy(hw, BM_PORT_GEN_CFG, &i); + i &= ~BM_WUC_HOST_WU_BIT; + e1e_wphy(hw, BM_PORT_GEN_CFG, i); ret_val = e1000_phy_hw_reset_ich8lan(hw); if (ret_val) return ret_val; @@ -3586,17 +3622,16 @@ void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw) } /** - * e1000e_disable_gig_wol_ich8lan - disable gig during WoL + * e1000_suspend_workarounds_ich8lan - workarounds needed during S0->Sx * @hw: pointer to the HW structure * * During S0 to Sx transition, it is possible the link remains at gig * instead of negotiating to a lower speed. Before going to Sx, set * 'LPLU Enabled' and 'Gig Disable' to force link speed negotiation - * to a lower speed. - * - * Should only be called for applicable parts. + * to a lower speed. For PCH and newer parts, the OEM bits PHY register + * (LED, GbE disable and LPLU configurations) also needs to be written. **/ -void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw) +void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw) { u32 phy_ctrl; s32 ret_val; @@ -3616,6 +3651,60 @@ void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw) } /** + * e1000_resume_workarounds_pchlan - workarounds needed during Sx->S0 + * @hw: pointer to the HW structure + * + * During Sx to S0 transitions on non-managed devices or managed devices + * on which PHY resets are not blocked, if the PHY registers cannot be + * accessed properly by the s/w toggle the LANPHYPC value to power cycle + * the PHY. + **/ +void e1000_resume_workarounds_pchlan(struct e1000_hw *hw) +{ + u32 fwsm; + + if (hw->mac.type != e1000_pch2lan) + return; + + fwsm = er32(FWSM); + if (!(fwsm & E1000_ICH_FWSM_FW_VALID) || !e1000_check_reset_block(hw)) { + u16 phy_id1, phy_id2; + s32 ret_val; + + ret_val = hw->phy.ops.acquire(hw); + if (ret_val) { + e_dbg("Failed to acquire PHY semaphore in resume\n"); + return; + } + + /* Test access to the PHY registers by reading the ID regs */ + ret_val = hw->phy.ops.read_reg_locked(hw, PHY_ID1, &phy_id1); + if (ret_val) + goto release; + ret_val = hw->phy.ops.read_reg_locked(hw, PHY_ID2, &phy_id2); + if (ret_val) + goto release; + + if (hw->phy.id == ((u32)(phy_id1 << 16) | + (u32)(phy_id2 & PHY_REVISION_MASK))) + goto release; + + e1000_toggle_lanphypc_value_ich8lan(hw); + + hw->phy.ops.release(hw); + msleep(50); + e1000_phy_hw_reset(hw); + msleep(50); + return; + } + +release: + hw->phy.ops.release(hw); + + return; +} + +/** * e1000_cleanup_led_ich8lan - Restore the default LED operation * @hw: pointer to the HW structure * @@ -3832,6 +3921,7 @@ static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw) static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw) { u16 phy_data; + s32 ret_val; e1000e_clear_hw_cntrs_base(hw); @@ -3853,20 +3943,29 @@ static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw) if ((hw->phy.type == e1000_phy_82578) || (hw->phy.type == e1000_phy_82579) || (hw->phy.type == e1000_phy_82577)) { - e1e_rphy(hw, HV_SCC_UPPER, &phy_data); - e1e_rphy(hw, HV_SCC_LOWER, &phy_data); - e1e_rphy(hw, HV_ECOL_UPPER, &phy_data); - e1e_rphy(hw, HV_ECOL_LOWER, &phy_data); - e1e_rphy(hw, HV_MCC_UPPER, &phy_data); - e1e_rphy(hw, HV_MCC_LOWER, &phy_data); - e1e_rphy(hw, HV_LATECOL_UPPER, &phy_data); - e1e_rphy(hw, HV_LATECOL_LOWER, &phy_data); - e1e_rphy(hw, HV_COLC_UPPER, &phy_data); - e1e_rphy(hw, HV_COLC_LOWER, &phy_data); - e1e_rphy(hw, HV_DC_UPPER, &phy_data); - e1e_rphy(hw, HV_DC_LOWER, &phy_data); - e1e_rphy(hw, HV_TNCRS_UPPER, &phy_data); - e1e_rphy(hw, HV_TNCRS_LOWER, &phy_data); + ret_val = hw->phy.ops.acquire(hw); + if (ret_val) + return; + ret_val = hw->phy.ops.set_page(hw, + HV_STATS_PAGE << IGP_PAGE_SHIFT); + if (ret_val) + goto release; + hw->phy.ops.read_reg_page(hw, HV_SCC_UPPER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_SCC_LOWER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_ECOL_UPPER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_ECOL_LOWER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_MCC_UPPER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_MCC_LOWER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_LATECOL_UPPER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_LATECOL_LOWER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_COLC_UPPER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_COLC_LOWER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_DC_UPPER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_DC_LOWER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_TNCRS_UPPER, &phy_data); + hw->phy.ops.read_reg_page(hw, HV_TNCRS_LOWER, &phy_data); +release: + hw->phy.ops.release(hw); } } |