diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/skge.c | 158 | ||||
| -rw-r--r-- | drivers/net/skge.h | 2 |
2 files changed, 125 insertions, 35 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 9135602e157..7e687ca4789 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -132,18 +132,93 @@ static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs, } /* Wake on Lan only supported on Yukon chips with rev 1 or above */ -static int wol_supported(const struct skge_hw *hw) +static u32 wol_supported(const struct skge_hw *hw) { - return !((hw->chip_id == CHIP_ID_GENESIS || - (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0))); + if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev != 0) + return WAKE_MAGIC | WAKE_PHY; + else + return 0; +} + +static u32 pci_wake_enabled(struct pci_dev *dev) +{ + int pm = pci_find_capability(dev, PCI_CAP_ID_PM); + u16 value; + + /* If device doesn't support PM Capabilities, but request is to disable + * wake events, it's a nop; otherwise fail */ + if (!pm) + return 0; + + pci_read_config_word(dev, pm + PCI_PM_PMC, &value); + + value &= PCI_PM_CAP_PME_MASK; + value >>= ffs(PCI_PM_CAP_PME_MASK) - 1; /* First bit of mask */ + + return value != 0; +} + +static void skge_wol_init(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + enum pause_control save_mode; + u32 ctrl; + + /* Bring hardware out of reset */ + skge_write16(hw, B0_CTST, CS_RST_CLR); + skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR); + + skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); + skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); + + /* Force to 10/100 skge_reset will re-enable on resume */ + save_mode = skge->flow_control; + skge->flow_control = FLOW_MODE_SYMMETRIC; + + ctrl = skge->advertising; + skge->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full); + + skge_phy_reset(skge); + + skge->flow_control = save_mode; + skge->advertising = ctrl; + + /* Set GMAC to no flow control and auto update for speed/duplex */ + gma_write16(hw, port, GM_GP_CTRL, + GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA| + GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS); + + /* Set WOL address */ + memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR), + skge->netdev->dev_addr, ETH_ALEN); + + /* Turn on appropriate WOL control bits */ + skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT); + ctrl = 0; + if (skge->wol & WAKE_PHY) + ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT; + else + ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT; + + if (skge->wol & WAKE_MAGIC) + ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT; + else + ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;; + + ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT; + skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); + + /* block receiver */ + skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); } static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct skge_port *skge = netdev_priv(dev); - wol->supported = wol_supported(skge->hw) ? WAKE_MAGIC : 0; - wol->wolopts = skge->wol ? WAKE_MAGIC : 0; + wol->supported = wol_supported(skge->hw); + wol->wolopts = skge->wol; } static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) @@ -151,23 +226,12 @@ static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) struct skge_port *skge = netdev_priv(dev); struct skge_hw *hw = skge->hw; - if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0) - return -EOPNOTSUPP; - - if (wol->wolopts == WAKE_MAGIC && !wol_supported(hw)) + if (wol->wolopts & wol_supported(hw)) return -EOPNOTSUPP; - skge->wol = wol->wolopts == WAKE_MAGIC; - - if (skge->wol) { - memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN); - - skge_write16(hw, WOL_CTRL_STAT, - WOL_CTL_ENA_PME_ON_MAGIC_PKT | - WOL_CTL_ENA_MAGIC_PKT_UNIT); - } else - skge_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT); - + skge->wol = wol->wolopts; + if (!netif_running(dev)) + skge_wol_init(skge); return 0; } @@ -3456,6 +3520,7 @@ static struct net_device *skge_devinit(struct skge_hw *hw, int port, skge->duplex = -1; skge->speed = -1; skge->advertising = skge_supported_modes(hw); + skge->wol = pci_wake_enabled(hw->pdev) ? wol_supported(hw) : 0; hw->dev[port] = dev; @@ -3654,28 +3719,46 @@ static void __devexit skge_remove(struct pci_dev *pdev) } #ifdef CONFIG_PM +static int vaux_avail(struct pci_dev *pdev) +{ + int pm_cap; + + pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); + if (pm_cap) { + u16 ctl; + pci_read_config_word(pdev, pm_cap + PCI_PM_PMC, &ctl); + if (ctl & PCI_PM_CAP_AUX_POWER) + return 1; + } + return 0; +} + + static int skge_suspend(struct pci_dev *pdev, pm_message_t state) { struct skge_hw *hw = pci_get_drvdata(pdev); - int i, wol = 0; + int i, err, wol = 0; + + err = pci_save_state(pdev); + if (err) + return err; - pci_save_state(pdev); for (i = 0; i < hw->ports; i++) { struct net_device *dev = hw->dev[i]; + struct skge_port *skge = netdev_priv(dev); - if (netif_running(dev)) { - struct skge_port *skge = netdev_priv(dev); + if (netif_running(dev)) + skge_down(dev); + if (skge->wol) + skge_wol_init(skge); - netif_carrier_off(dev); - if (skge->wol) - netif_stop_queue(dev); - else - skge_down(dev); - wol |= skge->wol; - } - netif_device_detach(dev); + wol |= skge->wol; } + if (wol && vaux_avail(pdev)) + skge_write8(hw, B0_POWER_CTRL, + PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF); + skge_write32(hw, B0_IMSK, 0); pci_enable_wake(pdev, pci_choose_state(pdev, state), wol); pci_set_power_state(pdev, pci_choose_state(pdev, state)); @@ -3688,8 +3771,14 @@ static int skge_resume(struct pci_dev *pdev) struct skge_hw *hw = pci_get_drvdata(pdev); int i, err; - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); + err = pci_set_power_state(pdev, PCI_D0); + if (err) + goto out; + + err = pci_restore_state(pdev); + if (err) + goto out; + pci_enable_wake(pdev, PCI_D0, 0); err = skge_reset(hw); @@ -3699,7 +3788,6 @@ static int skge_resume(struct pci_dev *pdev) for (i = 0; i < hw->ports; i++) { struct net_device *dev = hw->dev[i]; - netif_device_attach(dev); if (netif_running(dev)) { err = skge_up(dev); diff --git a/drivers/net/skge.h b/drivers/net/skge.h index f6223c533c0..17b1b479dff 100644 --- a/drivers/net/skge.h +++ b/drivers/net/skge.h @@ -876,11 +876,13 @@ enum { WOL_PATT_CNT_0 = 0x0f38,/* 32 bit WOL Pattern Counter 3..0 */ WOL_PATT_CNT_4 = 0x0f3c,/* 24 bit WOL Pattern Counter 6..4 */ }; +#define WOL_REGS(port, x) (x + (port)*0x80) enum { WOL_PATT_RAM_1 = 0x1000,/* WOL Pattern RAM Link 1 */ WOL_PATT_RAM_2 = 0x1400,/* WOL Pattern RAM Link 2 */ }; +#define WOL_PATT_RAM_BASE(port) (WOL_PATT_RAM_1 + (port)*0x400) enum { BASE_XMAC_1 = 0x2000,/* XMAC 1 registers */ |