diff options
Diffstat (limited to 'drivers/net/ethernet/smsc')
| -rw-r--r-- | drivers/net/ethernet/smsc/epic100.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/smsc/smc911x.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/smsc/smc91x.c | 81 | ||||
| -rw-r--r-- | drivers/net/ethernet/smsc/smc91x.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/smsc/smsc911x.c | 62 | ||||
| -rw-r--r-- | drivers/net/ethernet/smsc/smsc911x.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/smsc/smsc9420.c | 2 |
7 files changed, 126 insertions, 29 deletions
diff --git a/drivers/net/ethernet/smsc/epic100.c b/drivers/net/ethernet/smsc/epic100.c index 8ae1f8a7bf38..443f1da9fc9e 100644 --- a/drivers/net/ethernet/smsc/epic100.c +++ b/drivers/net/ethernet/smsc/epic100.c @@ -173,7 +173,7 @@ static const struct epic_chip_info pci_id_tbl[] = { }; -static DEFINE_PCI_DEVICE_TABLE(epic_pci_tbl) = { +static const struct pci_device_id epic_pci_tbl[] = { { 0x10B8, 0x0005, 0x1092, 0x0AB4, 0, 0, SMSC_83C170_0 }, { 0x10B8, 0x0005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SMSC_83C170 }, { 0x10B8, 0x0006, PCI_ANY_ID, PCI_ANY_ID, diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c index 9778cba9fc74..e88df9c7f1c0 100644 --- a/drivers/net/ethernet/smsc/smc911x.c +++ b/drivers/net/ethernet/smsc/smc911x.c @@ -1927,9 +1927,6 @@ static int smc911x_probe(struct net_device *dev) } dev->irq = irq_canonicalize(dev->irq); - /* Fill in the fields of the device structure with ethernet values. */ - ether_setup(dev); - dev->netdev_ops = &smc911x_netdev_ops; dev->watchdog_timeo = msecs_to_jiffies(watchdog); dev->ethtool_ops = &smc911x_ethtool_ops; diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c index bcaa41af1e62..6cc3cf6f17c8 100644 --- a/drivers/net/ethernet/smsc/smc91x.c +++ b/drivers/net/ethernet/smsc/smc91x.c @@ -81,6 +81,7 @@ static const char version[] = #include <linux/workqueue.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/of_gpio.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> @@ -1967,9 +1968,6 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr, } dev->irq = irq_canonicalize(dev->irq); - /* Fill in the fields of the device structure with ethernet values. */ - ether_setup(dev); - dev->watchdog_timeo = msecs_to_jiffies(watchdog); dev->netdev_ops = &smc_netdev_ops; dev->ethtool_ops = &smc_ethtool_ops; @@ -2191,6 +2189,41 @@ static const struct of_device_id smc91x_match[] = { {}, }; MODULE_DEVICE_TABLE(of, smc91x_match); + +/** + * of_try_set_control_gpio - configure a gpio if it exists + */ +static int try_toggle_control_gpio(struct device *dev, + struct gpio_desc **desc, + const char *name, int index, + int value, unsigned int nsdelay) +{ + struct gpio_desc *gpio = *desc; + int res; + + gpio = devm_gpiod_get_index(dev, name, index); + if (IS_ERR(gpio)) { + if (PTR_ERR(gpio) == -ENOENT) { + *desc = NULL; + return 0; + } + + return PTR_ERR(gpio); + } + res = gpiod_direction_output(gpio, !value); + if (res) { + dev_err(dev, "unable to toggle gpio %s: %i\n", name, res); + devm_gpiod_put(dev, gpio); + gpio = NULL; + return res; + } + if (nsdelay) + usleep_range(nsdelay, 2 * nsdelay); + gpiod_set_value_cansleep(gpio, value); + *desc = gpio; + + return 0; +} #endif /* @@ -2210,9 +2243,10 @@ static int smc_drv_probe(struct platform_device *pdev) const struct of_device_id *match = NULL; struct smc_local *lp; struct net_device *ndev; - struct resource *res, *ires; + struct resource *res; unsigned int __iomem *addr; unsigned long irq_flags = SMC_IRQ_FLAGS; + unsigned long irq_resflags; int ret; ndev = alloc_etherdev(sizeof(struct smc_local)); @@ -2240,6 +2274,28 @@ static int smc_drv_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; u32 val; + /* Optional pwrdwn GPIO configured? */ + ret = try_toggle_control_gpio(&pdev->dev, &lp->power_gpio, + "power", 0, 0, 100); + if (ret) + return ret; + + /* + * Optional reset GPIO configured? Minimum 100 ns reset needed + * according to LAN91C96 datasheet page 14. + */ + ret = try_toggle_control_gpio(&pdev->dev, &lp->reset_gpio, + "reset", 0, 0, 100); + if (ret) + return ret; + + /* + * Need to wait for optional EEPROM to load, max 750 us according + * to LAN91C96 datasheet page 55. + */ + if (lp->reset_gpio) + usleep_range(750, 1000); + /* Combination of IO widths supported, default to 16-bit */ if (!of_property_read_u32(np, "reg-io-width", &val)) { if (val & 1) @@ -2282,16 +2338,19 @@ static int smc_drv_probe(struct platform_device *pdev) goto out_free_netdev; } - ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!ires) { + ndev->irq = platform_get_irq(pdev, 0); + if (ndev->irq <= 0) { ret = -ENODEV; goto out_release_io; } - - ndev->irq = ires->start; - - if (irq_flags == -1 || ires->flags & IRQF_TRIGGER_MASK) - irq_flags = ires->flags & IRQF_TRIGGER_MASK; + /* + * If this platform does not specify any special irqflags, or if + * the resource supplies a trigger, override the irqflags with + * the trigger flags from the resource. + */ + irq_resflags = irqd_get_trigger_type(irq_get_irq_data(ndev->irq)); + if (irq_flags == -1 || irq_resflags & IRQF_TRIGGER_MASK) + irq_flags = irq_resflags & IRQF_TRIGGER_MASK; ret = smc_request_attrib(pdev, ndev); if (ret) diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h index 47dce918eb0f..2a38dacbbd27 100644 --- a/drivers/net/ethernet/smsc/smc91x.h +++ b/drivers/net/ethernet/smsc/smc91x.h @@ -298,6 +298,9 @@ struct smc_local { struct sk_buff *pending_tx_skb; struct tasklet_struct tx_task; + struct gpio_desc *power_gpio; + struct gpio_desc *reset_gpio; + /* version/revision of the SMC91x chip */ int version; diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c index 5e13fa5524ae..77ed74561e5f 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -1342,6 +1342,42 @@ static void smsc911x_rx_multicast_update_workaround(struct smsc911x_data *pdata) spin_unlock(&pdata->mac_lock); } +static int smsc911x_phy_general_power_up(struct smsc911x_data *pdata) +{ + int rc = 0; + + if (!pdata->phy_dev) + return rc; + + /* If the internal PHY is in General Power-Down mode, all, except the + * management interface, is powered-down and stays in that condition as + * long as Phy register bit 0.11 is HIGH. + * + * In that case, clear the bit 0.11, so the PHY powers up and we can + * access to the phy registers. + */ + rc = phy_read(pdata->phy_dev, MII_BMCR); + if (rc < 0) { + SMSC_WARN(pdata, drv, "Failed reading PHY control reg"); + return rc; + } + + /* If the PHY general power-down bit is not set is not necessary to + * disable the general power down-mode. + */ + if (rc & BMCR_PDOWN) { + rc = phy_write(pdata->phy_dev, MII_BMCR, rc & ~BMCR_PDOWN); + if (rc < 0) { + SMSC_WARN(pdata, drv, "Failed writing PHY control reg"); + return rc; + } + + usleep_range(1000, 1500); + } + + return 0; +} + static int smsc911x_phy_disable_energy_detect(struct smsc911x_data *pdata) { int rc = 0; @@ -1356,12 +1392,8 @@ static int smsc911x_phy_disable_energy_detect(struct smsc911x_data *pdata) return rc; } - /* - * If energy is detected the PHY is already awake so is not necessary - * to disable the energy detect power-down mode. - */ - if ((rc & MII_LAN83C185_EDPWRDOWN) && - !(rc & MII_LAN83C185_ENERGYON)) { + /* Only disable if energy detect mode is already enabled */ + if (rc & MII_LAN83C185_EDPWRDOWN) { /* Disable energy detect mode for this SMSC Transceivers */ rc = phy_write(pdata->phy_dev, MII_LAN83C185_CTRL_STATUS, rc & (~MII_LAN83C185_EDPWRDOWN)); @@ -1370,8 +1402,8 @@ static int smsc911x_phy_disable_energy_detect(struct smsc911x_data *pdata) SMSC_WARN(pdata, drv, "Failed writing PHY control reg"); return rc; } - - mdelay(1); + /* Allow PHY to wakeup */ + mdelay(2); } return 0; @@ -1393,7 +1425,6 @@ static int smsc911x_phy_enable_energy_detect(struct smsc911x_data *pdata) /* Only enable if energy detect mode is already disabled */ if (!(rc & MII_LAN83C185_EDPWRDOWN)) { - mdelay(100); /* Enable energy detect mode for this SMSC Transceivers */ rc = phy_write(pdata->phy_dev, MII_LAN83C185_CTRL_STATUS, rc | MII_LAN83C185_EDPWRDOWN); @@ -1402,8 +1433,6 @@ static int smsc911x_phy_enable_energy_detect(struct smsc911x_data *pdata) SMSC_WARN(pdata, drv, "Failed writing PHY control reg"); return rc; } - - mdelay(1); } return 0; } @@ -1415,6 +1444,16 @@ static int smsc911x_soft_reset(struct smsc911x_data *pdata) int ret; /* + * Make sure to power-up the PHY chip before doing a reset, otherwise + * the reset fails. + */ + ret = smsc911x_phy_general_power_up(pdata); + if (ret) { + SMSC_WARN(pdata, drv, "Failed to power-up the PHY chip"); + return ret; + } + + /* * LAN9210/LAN9211/LAN9220/LAN9221 chips have an internal PHY that * are initialized in a Energy Detect Power-Down mode that prevents * the MAC chip to be software reseted. So we have to wakeup the PHY @@ -2255,7 +2294,6 @@ static int smsc911x_init(struct net_device *dev) if (smsc911x_soft_reset(pdata)) return -ENODEV; - ether_setup(dev); dev->flags |= IFF_MULTICAST; netif_napi_add(dev, &pdata->napi, smsc911x_poll, SMSC_NAPI_WEIGHT); dev->netdev_ops = &smsc911x_netdev_ops; diff --git a/drivers/net/ethernet/smsc/smsc911x.h b/drivers/net/ethernet/smsc/smsc911x.h index 23953957fed8..54d648920a1b 100644 --- a/drivers/net/ethernet/smsc/smsc911x.h +++ b/drivers/net/ethernet/smsc/smsc911x.h @@ -51,7 +51,7 @@ #ifdef CONFIG_DEBUG_SPINLOCK #define SMSC_ASSERT_MAC_LOCK(pdata) \ - WARN_ON(!spin_is_locked(&pdata->mac_lock)) + WARN_ON_SMP(!spin_is_locked(&pdata->mac_lock)) #else #define SMSC_ASSERT_MAC_LOCK(pdata) do {} while (0) #endif /* CONFIG_DEBUG_SPINLOCK */ diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c index d3b967aff9e0..4a90cdae5444 100644 --- a/drivers/net/ethernet/smsc/smsc9420.c +++ b/drivers/net/ethernet/smsc/smsc9420.c @@ -83,7 +83,7 @@ struct smsc9420_pdata { int last_carrier; }; -static DEFINE_PCI_DEVICE_TABLE(smsc9420_id_table) = { +static const struct pci_device_id smsc9420_id_table[] = { { PCI_VENDOR_ID_9420, PCI_DEVICE_ID_9420, PCI_ANY_ID, PCI_ANY_ID, }, { 0, } }; |