2 files changed, 89 insertions, 6 deletions

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 612257172b95..0bd74fe5c338 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -217,13 +217,19 @@ static void sky2_power_on(struct sky2_hw *hw)
                 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
 
         if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
-                u32 reg1;
+                u32 reg;
 
-                sky2_pci_write32(hw, PCI_DEV_REG3, 0);
-                reg1 = sky2_pci_read32(hw, PCI_DEV_REG4);
-                reg1 &= P_ASPM_CONTROL_MSK;
-                sky2_pci_write32(hw, PCI_DEV_REG4, reg1);
-                sky2_pci_write32(hw, PCI_DEV_REG5, 0);
+                reg = sky2_pci_read32(hw, PCI_DEV_REG4);
+                /* set all bits to 0 except bits 15..12 and 8 */
+                reg &= P_ASPM_CONTROL_MSK;
+                sky2_pci_write32(hw, PCI_DEV_REG4, reg);
+
+                reg = sky2_pci_read32(hw, PCI_DEV_REG5);
+                /* set all bits to 0 except bits 28 & 27 */
+                reg &= P_CTL_TIM_VMAIN_AV_MSK;
+                sky2_pci_write32(hw, PCI_DEV_REG5, reg);
+
+                sky2_pci_write32(hw, PCI_CFG_REG_1, 0);
         }
 }
 
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h
index b8c4a3b5eadf..3caeddf893ef 100644
--- a/drivers/net/sky2.h
+++ b/drivers/net/sky2.h
@@ -14,6 +14,8 @@ enum {
         PCI_DEV_REG3    = 0x80,
         PCI_DEV_REG4    = 0x84,
         PCI_DEV_REG5    = 0x88,
+        PCI_CFG_REG_0   = 0x90,
+        PCI_CFG_REG_1   = 0x94,
 };
 
 enum {
@@ -28,6 +30,7 @@ enum {
 enum pci_dev_reg_1 {
         PCI_Y2_PIG_ENA   = 1<<31, /* Enable Plug-in-Go (YUKON-2) */
         PCI_Y2_DLL_DIS   = 1<<30, /* Disable PCI DLL (YUKON-2) */
+        PCI_SW_PWR_ON_RST= 1<<30, /* SW Power on Reset (Yukon-EX) */
         PCI_Y2_PHY2_COMA = 1<<29, /* Set PHY 2 to Coma Mode (YUKON-2) */
         PCI_Y2_PHY1_COMA = 1<<28, /* Set PHY 1 to Coma Mode (YUKON-2) */
         PCI_Y2_PHY2_POWD = 1<<27, /* Set PHY 2 to Power Down (YUKON-2) */
@@ -67,6 +70,80 @@ enum pci_dev_reg_4 {
                                   | P_ASPM_CLKRUN_REQUEST | P_ASPM_INT_FIFO_EMPTY,
 };
 
+/*      PCI_OUR_REG_5           32 bit  Our Register 5 (Yukon-ECU only) */
+enum pci_dev_reg_5 {
+                                        /* Bit 31..27:  for A3 & later */
+        P_CTL_DIV_CORE_CLK_ENA  = 1<<31, /* Divide Core Clock Enable */
+        P_CTL_SRESET_VMAIN_AV   = 1<<30, /* Soft Reset for Vmain_av De-Glitch */
+        P_CTL_BYPASS_VMAIN_AV   = 1<<29, /* Bypass En. for Vmain_av De-Glitch */
+        P_CTL_TIM_VMAIN_AV_MSK  = 3<<27, /* Bit 28..27: Timer Vmain_av Mask */
+                                         /* Bit 26..16: Release Clock on Event */
+        P_REL_PCIE_RST_DE_ASS   = 1<<26, /* PCIe Reset De-Asserted */
+        P_REL_GPHY_REC_PACKET   = 1<<25, /* GPHY Received Packet */
+        P_REL_INT_FIFO_N_EMPTY  = 1<<24, /* Internal FIFO Not Empty */
+        P_REL_MAIN_PWR_AVAIL    = 1<<23, /* Main Power Available */
+        P_REL_CLKRUN_REQ_REL    = 1<<22, /* CLKRUN Request Release */
+        P_REL_PCIE_RESET_ASS    = 1<<21, /* PCIe Reset Asserted */
+        P_REL_PME_ASSERTED      = 1<<20, /* PME Asserted */
+        P_REL_PCIE_EXIT_L1_ST   = 1<<19, /* PCIe Exit L1 State */
+        P_REL_LOADER_NOT_FIN    = 1<<18, /* EPROM Loader Not Finished */
+        P_REL_PCIE_RX_EX_IDLE   = 1<<17, /* PCIe Rx Exit Electrical Idle State */
+        P_REL_GPHY_LINK_UP      = 1<<16, /* GPHY Link Up */
+
+                                        /* Bit 10.. 0: Mask for Gate Clock */
+        P_GAT_PCIE_RST_ASSERTED = 1<<10,/* PCIe Reset Asserted */
+        P_GAT_GPHY_N_REC_PACKET = 1<<9, /* GPHY Not Received Packet */
+        P_GAT_INT_FIFO_EMPTY    = 1<<8, /* Internal FIFO Empty */
+        P_GAT_MAIN_PWR_N_AVAIL  = 1<<7, /* Main Power Not Available */
+        P_GAT_CLKRUN_REQ_REL    = 1<<6, /* CLKRUN Not Requested */
+        P_GAT_PCIE_RESET_ASS    = 1<<5, /* PCIe Reset Asserted */
+        P_GAT_PME_DE_ASSERTED   = 1<<4, /* PME De-Asserted */
+        P_GAT_PCIE_ENTER_L1_ST  = 1<<3, /* PCIe Enter L1 State */
+        P_GAT_LOADER_FINISHED   = 1<<2, /* EPROM Loader Finished */
+        P_GAT_PCIE_RX_EL_IDLE   = 1<<1, /* PCIe Rx Electrical Idle State */
+        P_GAT_GPHY_LINK_DOWN    = 1<<0, /* GPHY Link Down */
+
+        PCIE_OUR5_EVENT_CLK_D3_SET = P_REL_GPHY_REC_PACKET |
+                                     P_REL_INT_FIFO_N_EMPTY |
+                                     P_REL_PCIE_EXIT_L1_ST |
+                                     P_REL_PCIE_RX_EX_IDLE |
+                                     P_GAT_GPHY_N_REC_PACKET |
+                                     P_GAT_INT_FIFO_EMPTY |
+                                     P_GAT_PCIE_ENTER_L1_ST |
+                                     P_GAT_PCIE_RX_EL_IDLE,
+};
+
+#/*     PCI_CFG_REG_1                   32 bit  Config Register 1 (Yukon-Ext only) */
+enum pci_cfg_reg1 {
+        P_CF1_DIS_REL_EVT_RST   = 1<<24, /* Dis. Rel. Event during PCIE reset */
+                                                                                /* Bit 23..21: Release Clock on Event */
+        P_CF1_REL_LDR_NOT_FIN   = 1<<23, /* EEPROM Loader Not Finished */
+        P_CF1_REL_VMAIN_AVLBL   = 1<<22, /* Vmain available */
+        P_CF1_REL_PCIE_RESET    = 1<<21, /* PCI-E reset */
+                                                                                /* Bit 20..18: Gate Clock on Event */
+        P_CF1_GAT_LDR_NOT_FIN   = 1<<20, /* EEPROM Loader Finished */
+        P_CF1_GAT_PCIE_RX_IDLE  = 1<<19, /* PCI-E Rx Electrical idle */
+        P_CF1_GAT_PCIE_RESET    = 1<<18, /* PCI-E Reset */
+        P_CF1_PRST_PHY_CLKREQ   = 1<<17, /* Enable PCI-E rst & PM2PHY gen. CLKREQ */
+        P_CF1_PCIE_RST_CLKREQ   = 1<<16, /* Enable PCI-E rst generate CLKREQ */
+
+        P_CF1_ENA_CFG_LDR_DONE  = 1<<8, /* Enable core level Config loader done */
+
+        P_CF1_ENA_TXBMU_RD_IDLE = 1<<1, /* Enable TX BMU Read  IDLE for ASPM */
+        P_CF1_ENA_TXBMU_WR_IDLE = 1<<0, /* Enable TX BMU Write IDLE for ASPM */
+
+        PCIE_CFG1_EVENT_CLK_D3_SET = P_CF1_DIS_REL_EVT_RST |
+                                        P_CF1_REL_LDR_NOT_FIN |
+                                        P_CF1_REL_VMAIN_AVLBL |
+                                        P_CF1_REL_PCIE_RESET |
+                                        P_CF1_GAT_LDR_NOT_FIN |
+                                        P_CF1_GAT_PCIE_RESET |
+                                        P_CF1_PRST_PHY_CLKREQ |
+                                        P_CF1_ENA_CFG_LDR_DONE |
+                                        P_CF1_ENA_TXBMU_RD_IDLE |
+                                        P_CF1_ENA_TXBMU_WR_IDLE,
+};
+
 
 #define PCI_STATUS_ERROR_BITS (PCI_STATUS_DETECTED_PARITY | \
                                PCI_STATUS_SIG_SYSTEM_ERROR | \