Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6.git] / drivers / net / sky2.c
index c8a5ef2..711e4a8 100644 (file)
@@ -51,7 +51,7 @@
 #include "sky2.h"
 
 #define DRV_NAME               "sky2"
-#define DRV_VERSION            "1.21"
+#define DRV_VERSION            "1.22"
 #define PFX                    DRV_NAME " "
 
 /*
@@ -98,7 +98,7 @@ static int disable_msi = 0;
 module_param(disable_msi, int, 0);
 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
 
-static const struct pci_device_id sky2_id_table[] = {
+static DEFINE_PCI_DEVICE_TABLE(sky2_id_table) = {
        { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */
        { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */
        { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) },    /* DGE-560T */
@@ -137,6 +137,7 @@ static const struct pci_device_id sky2_id_table[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436C) }, /* 88E8072 */
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436D) }, /* 88E8055 */
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4370) }, /* 88E8075 */
+       { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4380) }, /* 88E8057 */
        { 0 }
 };
 
@@ -147,17 +148,6 @@ static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
 static const unsigned rxqaddr[] = { Q_R1, Q_R2 };
 static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 };
 
-/* This driver supports yukon2 chipset only */
-static const char *yukon2_name[] = {
-       "XL",           /* 0xb3 */
-       "EC Ultra",     /* 0xb4 */
-       "Extreme",      /* 0xb5 */
-       "EC",           /* 0xb6 */
-       "FE",           /* 0xb7 */
-       "FE+",          /* 0xb8 */
-       "Supreme",      /* 0xb9 */
-};
-
 static void sky2_set_multicast(struct net_device *dev);
 
 /* Access to PHY via serial interconnect */
@@ -285,6 +275,86 @@ static void sky2_power_aux(struct sky2_hw *hw)
                             PC_VAUX_ON | PC_VCC_OFF));
 }
 
+static void sky2_power_state(struct sky2_hw *hw, pci_power_t state)
+{
+       u16 power_control = sky2_pci_read16(hw, hw->pm_cap + PCI_PM_CTRL);
+       int pex = pci_find_capability(hw->pdev, PCI_CAP_ID_EXP);
+       u32 reg;
+
+       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+
+       switch (state) {
+       case PCI_D0:
+               break;
+
+       case PCI_D1:
+               power_control |= 1;
+               break;
+
+       case PCI_D2:
+               power_control |= 2;
+               break;
+
+       case PCI_D3hot:
+       case PCI_D3cold:
+               power_control |= 3;
+               if (hw->flags & SKY2_HW_ADV_POWER_CTL) {
+                       /* additional power saving measurements */
+                       reg = sky2_pci_read32(hw, PCI_DEV_REG4);
+
+                       /* set gating core clock for LTSSM in L1 state */
+                       reg |= P_PEX_LTSSM_STAT(P_PEX_LTSSM_L1_STAT) |
+                               /* auto clock gated scheme controlled by CLKREQ */
+                               P_ASPM_A1_MODE_SELECT |
+                               /* enable Gate Root Core Clock */
+                               P_CLK_GATE_ROOT_COR_ENA;
+
+                       if (pex && (hw->flags & SKY2_HW_CLK_POWER)) {
+                               /* enable Clock Power Management (CLKREQ) */
+                               u16 ctrl = sky2_pci_read16(hw, pex + PCI_EXP_DEVCTL);
+
+                               ctrl |= PCI_EXP_DEVCTL_AUX_PME;
+                               sky2_pci_write16(hw, pex + PCI_EXP_DEVCTL, ctrl);
+                       } else
+                               /* force CLKREQ Enable in Our4 (A1b only) */
+                               reg |= P_ASPM_FORCE_CLKREQ_ENA;
+
+                       /* set Mask Register for Release/Gate Clock */
+                       sky2_pci_write32(hw, PCI_DEV_REG5,
+                                        P_REL_PCIE_EXIT_L1_ST | P_GAT_PCIE_ENTER_L1_ST |
+                                        P_REL_PCIE_RX_EX_IDLE | P_GAT_PCIE_RX_EL_IDLE |
+                                        P_REL_GPHY_LINK_UP | P_GAT_GPHY_LINK_DOWN);
+               } else
+                       sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_CLK_HALT);
+
+               /* put CPU into reset state */
+               sky2_write8(hw,  B28_Y2_ASF_STAT_CMD, HCU_CCSR_ASF_RESET);
+               if (hw->chip_id == CHIP_ID_YUKON_SUPR && hw->chip_rev == CHIP_REV_YU_SU_A0)
+                       /* put CPU into halt state */
+                       sky2_write8(hw, B28_Y2_ASF_STAT_CMD, HCU_CCSR_ASF_HALTED);
+
+               if (pex && !(hw->flags & SKY2_HW_RAM_BUFFER)) {
+                       reg = sky2_pci_read32(hw, PCI_DEV_REG1);
+                       /* force to PCIe L1 */
+                       reg |= PCI_FORCE_PEX_L1;
+                       sky2_pci_write32(hw, PCI_DEV_REG1, reg);
+               }
+               break;
+
+       default:
+               dev_warn(&hw->pdev->dev, PFX "Invalid power state (%d) ",
+                      state);
+               return;
+       }
+
+       power_control |= PCI_PM_CTRL_PME_ENABLE;
+       /* Finally, set the new power state. */
+       sky2_pci_write32(hw, hw->pm_cap + PCI_PM_CTRL, power_control);
+
+       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+       sky2_pci_read32(hw, B0_CTST);
+}
+
 static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port)
 {
        u16 reg;
@@ -579,8 +649,7 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
                ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
        }
 
-       if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
-           hw->chip_rev == CHIP_REV_YU_EC_U_A1) {
+       if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_UL_2) {
                /* apply fixes in PHY AFE */
                gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
 
@@ -588,9 +657,11 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
                gm_phy_write(hw, port, 0x18, 0xaa99);
                gm_phy_write(hw, port, 0x17, 0x2011);
 
-               /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
-               gm_phy_write(hw, port, 0x18, 0xa204);
-               gm_phy_write(hw, port, 0x17, 0x2002);
+               if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
+                       /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
+                       gm_phy_write(hw, port, 0x18, 0xa204);
+                       gm_phy_write(hw, port, 0x17, 0x2002);
+               }
 
                /* set page register to 0 */
                gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
@@ -599,7 +670,8 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
                /* apply workaround for integrated resistors calibration */
                gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17);
                gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60);
-       } else if (hw->chip_id != CHIP_ID_YUKON_EX) {
+       } else if (hw->chip_id != CHIP_ID_YUKON_EX &&
+                  hw->chip_id < CHIP_ID_YUKON_SUPR) {
                /* no effect on Yukon-XL */
                gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
 
@@ -620,28 +692,71 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
                gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
 }
 
-static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff)
+static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
+static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA };
+
+static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port)
 {
        u32 reg1;
-       static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
-       static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA };
 
        sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
        reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
-       /* Turn on/off phy power saving */
-       if (onoff)
-               reg1 &= ~phy_power[port];
-       else
-               reg1 |= phy_power[port];
+       reg1 &= ~phy_power[port];
 
-       if (onoff && hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
+       if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
                reg1 |= coma_mode[port];
 
        sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
        sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
        sky2_pci_read32(hw, PCI_DEV_REG1);
+}
+
+static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port)
+{
+       u32 reg1;
+       u16 ctrl;
+
+       /* release GPHY Control reset */
+       sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+
+       /* release GMAC reset */
+       sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+
+       if (hw->flags & SKY2_HW_NEWER_PHY) {
+               /* select page 2 to access MAC control register */
+               gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
 
-       udelay(100);
+               ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+               /* allow GMII Power Down */
+               ctrl &= ~PHY_M_MAC_GMIF_PUP;
+               gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+               /* set page register back to 0 */
+               gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+       }
+
+       /* setup General Purpose Control Register */
+       gma_write16(hw, port, GM_GP_CTRL,
+                   GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 | GM_GPCR_AU_ALL_DIS);
+
+       if (hw->chip_id != CHIP_ID_YUKON_EC) {
+               if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
+                       ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+
+                       /* enable Power Down */
+                       ctrl |= PHY_M_PC_POW_D_ENA;
+                       gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+               }
+
+               /* set IEEE compatible Power Down Mode (dev. #4.99) */
+               gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN);
+       }
+
+       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+       reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
+       reg1 |= phy_power[port];                /* set PHY to PowerDown/COMA Mode */
+       sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
+       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
 }
 
 /* Force a renegotiation */
@@ -676,8 +791,11 @@ static void sky2_wol_init(struct sky2_port *sky2)
 
        sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
        sky2->flow_mode = FC_NONE;
-       sky2_phy_power(hw, port, 1);
-       sky2_phy_reinit(sky2);
+
+       spin_lock_bh(&sky2->phy_lock);
+       sky2_phy_power_up(hw, port);
+       sky2_phy_init(hw, port);
+       spin_unlock_bh(&sky2->phy_lock);
 
        sky2->flow_mode = save_mode;
        sky2->advertising = ctrl;
@@ -782,6 +900,7 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
        sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
 
        spin_lock_bh(&sky2->phy_lock);
+       sky2_phy_power_up(hw, port);
        sky2_phy_init(hw, port);
        spin_unlock_bh(&sky2->phy_lock);
 
@@ -1386,8 +1505,6 @@ static int sky2_up(struct net_device *dev)
        if (!sky2->rx_ring)
                goto err_out;
 
-       sky2_phy_power(hw, port, 1);
-
        sky2_mac_init(hw, port);
 
        /* Register is number of 4K blocks on internal RAM buffer. */
@@ -1768,7 +1885,7 @@ static int sky2_down(struct net_device *dev)
        sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
        sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
 
-       sky2_phy_power(hw, port, 0);
+       sky2_phy_power_down(hw, port);
 
        netif_carrier_off(dev);
 
@@ -2694,6 +2811,7 @@ static u32 sky2_mhz(const struct sky2_hw *hw)
        case CHIP_ID_YUKON_EC_U:
        case CHIP_ID_YUKON_EX:
        case CHIP_ID_YUKON_SUPR:
+       case CHIP_ID_YUKON_UL_2:
                return 125;
 
        case CHIP_ID_YUKON_FE:
@@ -2742,6 +2860,10 @@ static int __devinit sky2_init(struct sky2_hw *hw)
                hw->flags = SKY2_HW_GIGABIT
                        | SKY2_HW_NEWER_PHY
                        | SKY2_HW_ADV_POWER_CTL;
+
+               /* check for Rev. A1 dev 4200 */
+               if (sky2_read16(hw, Q_ADDR(Q_XA1, Q_WM)) == 0)
+                       hw->flags |= SKY2_HW_CLK_POWER;
                break;
 
        case CHIP_ID_YUKON_EX:
@@ -2782,6 +2904,11 @@ static int __devinit sky2_init(struct sky2_hw *hw)
                        | SKY2_HW_ADV_POWER_CTL;
                break;
 
+       case CHIP_ID_YUKON_UL_2:
+               hw->flags = SKY2_HW_GIGABIT
+                       | SKY2_HW_ADV_POWER_CTL;
+               break;
+
        default:
                dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
                        hw->chip_id);
@@ -2792,6 +2919,11 @@ static int __devinit sky2_init(struct sky2_hw *hw)
        if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P')
                hw->flags |= SKY2_HW_FIBRE_PHY;
 
+       hw->pm_cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PM);
+       if (hw->pm_cap == 0) {
+               dev_err(&hw->pdev->dev, "cannot find PowerManagement capability\n");
+               return -EIO;
+       }
 
        hw->ports = 1;
        t8 = sky2_read8(hw, B2_Y2_HW_RES);
@@ -3379,7 +3511,7 @@ static void sky2_led(struct sky2_port *sky2, enum led_mode mode)
 
                gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
        } else
-               gm_phy_write(hw, port, PHY_MARV_LED_OVER, 
+               gm_phy_write(hw, port, PHY_MARV_LED_OVER,
                                     PHY_M_LED_MO_DUP(mode) |
                                     PHY_M_LED_MO_10(mode) |
                                     PHY_M_LED_MO_100(mode) |
@@ -4132,12 +4264,34 @@ static int __devinit pci_wake_enabled(struct pci_dev *dev)
        return value & PCI_PM_CTRL_PME_ENABLE;
 }
 
+/* This driver supports yukon2 chipset only */
+static const char *sky2_name(u8 chipid, char *buf, int sz)
+{
+       const char *name[] = {
+               "XL",           /* 0xb3 */
+               "EC Ultra",     /* 0xb4 */
+               "Extreme",      /* 0xb5 */
+               "EC",           /* 0xb6 */
+               "FE",           /* 0xb7 */
+               "FE+",          /* 0xb8 */
+               "Supreme",      /* 0xb9 */
+               "UL 2",         /* 0xba */
+       };
+
+       if (chipid >= CHIP_ID_YUKON_XL && chipid < CHIP_ID_YUKON_UL_2)
+               strncpy(buf, name[chipid - CHIP_ID_YUKON_XL], sz);
+       else
+               snprintf(buf, sz, "(chip %#x)", chipid);
+       return buf;
+}
+
 static int __devinit sky2_probe(struct pci_dev *pdev,
                                const struct pci_device_id *ent)
 {
        struct net_device *dev;
        struct sky2_hw *hw;
        int err, using_dac = 0, wol_default;
+       char buf1[16];
 
        err = pci_enable_device(pdev);
        if (err) {
@@ -4208,10 +4362,10 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
        if (err)
                goto err_out_iounmap;
 
-       dev_info(&pdev->dev, "v%s addr 0x%llx irq %d Yukon-%s (0x%x) rev %d\n",
-              DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0),
-              pdev->irq, yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
-              hw->chip_id, hw->chip_rev);
+       dev_info(&pdev->dev, "v%s addr 0x%llx irq %d Yukon-2 %s rev %d\n",
+                DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0),
+                pdev->irq, sky2_name(hw->chip_id, buf1, sizeof(buf1)),
+                hw->chip_rev);
 
        sky2_reset(hw);
 
@@ -4363,7 +4517,7 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
 
        pci_save_state(pdev);
        pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
-       pci_set_power_state(pdev, pci_choose_state(pdev, state));
+       sky2_power_state(hw, pci_choose_state(pdev, state));
 
        return 0;
 }
@@ -4376,9 +4530,7 @@ static int sky2_resume(struct pci_dev *pdev)
        if (!hw)
                return 0;
 
-       err = pci_set_power_state(pdev, PCI_D0);
-       if (err)
-               goto out;
+       sky2_power_state(hw, PCI_D0);
 
        err = pci_restore_state(pdev);
        if (err)
@@ -4448,8 +4600,7 @@ static void sky2_shutdown(struct pci_dev *pdev)
        pci_enable_wake(pdev, PCI_D3cold, wol);
 
        pci_disable_device(pdev);
-       pci_set_power_state(pdev, PCI_D3hot);
-
+       sky2_power_state(hw, PCI_D3hot);
 }
 
 static struct pci_driver sky2_driver = {