Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[pandora-kernel.git] / drivers / net / e1000e / ich8lan.c
index 3369d1f..c175212 100644 (file)
@@ -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, &reg);
+       /* Clear the host wakeup bit after lcd reset */
+       if (hw->mac.type >= e1000_pchlan) {
+               e1e_rphy(hw, BM_PORT_GEN_CFG, &reg);
+               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;
@@ -3615,6 +3650,60 @@ 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);
        }
 }