1 files changed, 85 insertions, 67 deletions

diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 783c1a7b869..6e175e5555a 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -368,48 +368,53 @@ out:
 	return reg;
 }
 
-/* Autodetects and initialises external phy for SMSC9115 and SMSC9117 flavors.
- * If something goes wrong, returns -ENODEV to revert back to internal phy.
- * Performed at initialisation only, so interrupts are enabled */
-static int smsc911x_phy_initialise_external(struct smsc911x_data *pdata)
+/* Switch to external phy. Assumes tx and rx are stopped. */
+static void smsc911x_phy_enable_external(struct smsc911x_data *pdata)
 {
 	unsigned int hwcfg = smsc911x_reg_read(pdata, HW_CFG);
 
-	/* External phy is requested, supported, and detected */
-	if (hwcfg & HW_CFG_EXT_PHY_DET_) {
+	/* Disable phy clocks to the MAC */
+	hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+	hwcfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+	udelay(10);	/* Enough time for clocks to stop */
 
-		/* Switch to external phy. Assuming tx and rx are stopped
-		 * because smsc911x_phy_initialise is called before
-		 * smsc911x_rx_initialise and tx_initialise. */
+	/* Switch to external phy */
+	hwcfg |= HW_CFG_EXT_PHY_EN_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
 
-		/* Disable phy clocks to the MAC */
-		hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
-		hwcfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
-		udelay(10);	/* Enough time for clocks to stop */
+	/* Enable phy clocks to the MAC */
+	hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+	hwcfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+	udelay(10);	/* Enough time for clocks to restart */
 
-		/* Switch to external phy */
-		hwcfg |= HW_CFG_EXT_PHY_EN_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
-
-		/* Enable phy clocks to the MAC */
-		hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
-		hwcfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
-		udelay(10);	/* Enough time for clocks to restart */
+	hwcfg |= HW_CFG_SMI_SEL_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+}
 
-		hwcfg |= HW_CFG_SMI_SEL_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+/* Autodetects and enables external phy if present on supported chips.
+ * autodetection can be overridden by specifying SMSC911X_FORCE_INTERNAL_PHY
+ * or SMSC911X_FORCE_EXTERNAL_PHY in the platform_data flags. */
+static void smsc911x_phy_initialise_external(struct smsc911x_data *pdata)
+{
+	unsigned int hwcfg = smsc911x_reg_read(pdata, HW_CFG);
 
-		SMSC_TRACE(HW, "Successfully switched to external PHY");
+	if (pdata->config.flags & SMSC911X_FORCE_INTERNAL_PHY) {
+		SMSC_TRACE(HW, "Forcing internal PHY");
+		pdata->using_extphy = 0;
+	} else if (pdata->config.flags & SMSC911X_FORCE_EXTERNAL_PHY) {
+		SMSC_TRACE(HW, "Forcing external PHY");
+		smsc911x_phy_enable_external(pdata);
+		pdata->using_extphy = 1;
+	} else if (hwcfg & HW_CFG_EXT_PHY_DET_) {
+		SMSC_TRACE(HW, "HW_CFG EXT_PHY_DET set, using external PHY");
+		smsc911x_phy_enable_external(pdata);
 		pdata->using_extphy = 1;
 	} else {
-		SMSC_WARNING(HW, "No external PHY detected, "
-			"Using internal PHY instead.");
-		/* Use internal phy */
-		return -ENODEV;
+		SMSC_TRACE(HW, "HW_CFG EXT_PHY_DET clear, using internal PHY");
+		pdata->using_extphy = 0;
 	}
-	return 0;
 }
 
 /* Fetches a tx status out of the status fifo */
@@ -769,7 +774,7 @@ static int smsc911x_mii_probe(struct net_device *dev)
 		return -ENODEV;
 	}
 
-	phydev = phy_connect(dev, phydev->dev.bus_id,
+	phydev = phy_connect(dev, dev_name(&phydev->dev),
 		&smsc911x_phy_adjust_link, 0, pdata->config.phy_interface);
 
 	if (IS_ERR(phydev)) {
@@ -778,7 +783,8 @@ static int smsc911x_mii_probe(struct net_device *dev)
 	}
 
 	pr_info("%s: attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n",
-		dev->name, phydev->drv->name, phydev->dev.bus_id, phydev->irq);
+		dev->name, phydev->drv->name,
+		dev_name(&phydev->dev), phydev->irq);
 
 	/* mask with MAC supported features */
 	phydev->supported &= (PHY_BASIC_FEATURES | SUPPORTED_Pause |
@@ -824,22 +830,18 @@ static int __devinit smsc911x_mii_init(struct platform_device *pdev,
 
 	pdata->mii_bus->parent = &pdev->dev;
 
-	pdata->using_extphy = 0;
-
 	switch (pdata->idrev & 0xFFFF0000) {
 	case 0x01170000:
 	case 0x01150000:
 	case 0x117A0000:
 	case 0x115A0000:
 		/* External PHY supported, try to autodetect */
-		if (smsc911x_phy_initialise_external(pdata) < 0) {
-			SMSC_TRACE(HW, "No external PHY detected, "
-				"using internal PHY");
-		}
+		smsc911x_phy_initialise_external(pdata);
 		break;
 	default:
 		SMSC_TRACE(HW, "External PHY is not supported, "
 			"using internal PHY");
+		pdata->using_extphy = 0;
 		break;
 	}
 
@@ -984,7 +986,7 @@ static int smsc911x_poll(struct napi_struct *napi, int budget)
 			/* We processed all packets available.  Tell NAPI it can
 			 * stop polling then re-enable rx interrupts */
 			smsc911x_reg_write(pdata, INT_STS, INT_STS_RSFL_);
-			netif_rx_complete(napi);
+			napi_complete(napi);
 			temp = smsc911x_reg_read(pdata, INT_EN);
 			temp |= INT_EN_RSFL_EN_;
 			smsc911x_reg_write(pdata, INT_EN, temp);
@@ -1246,7 +1248,7 @@ static int smsc911x_open(struct net_device *dev)
 	napi_enable(&pdata->napi);
 
 	temp = smsc911x_reg_read(pdata, INT_EN);
-	temp |= (INT_EN_TDFA_EN_ | INT_EN_RSFL_EN_);
+	temp |= (INT_EN_TDFA_EN_ | INT_EN_RSFL_EN_ | INT_EN_RXSTOP_INT_EN_);
 	smsc911x_reg_write(pdata, INT_EN, temp);
 
 	spin_lock_irq(&pdata->mac_lock);
@@ -1418,11 +1420,6 @@ static void smsc911x_set_multicast_list(struct net_device *dev)
 
 			/* Request the hardware to stop, then perform the
 			 * update when we get an RX_STOP interrupt */
-			smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
-			temp = smsc911x_reg_read(pdata, INT_EN);
-			temp |= INT_EN_RXSTOP_INT_EN_;
-			smsc911x_reg_write(pdata, INT_EN, temp);
-
 			temp = smsc911x_mac_read(pdata, MAC_CR);
 			temp &= ~(MAC_CR_RXEN_);
 			smsc911x_mac_write(pdata, MAC_CR, temp);
@@ -1461,11 +1458,9 @@ static irqreturn_t smsc911x_irqhandler(int irq, void *dev_id)
 		/* Called when there is a multicast update scheduled and
 		 * it is now safe to complete the update */
 		SMSC_TRACE(INTR, "RX Stop interrupt");
-		temp = smsc911x_reg_read(pdata, INT_EN);
-		temp &= (~INT_EN_RXSTOP_INT_EN_);
-		smsc911x_reg_write(pdata, INT_EN, temp);
 		smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
-		smsc911x_rx_multicast_update_workaround(pdata);
+		if (pdata->multicast_update_pending)
+			smsc911x_rx_multicast_update_workaround(pdata);
 		serviced = IRQ_HANDLED;
 	}
 
@@ -1485,16 +1480,16 @@ static irqreturn_t smsc911x_irqhandler(int irq, void *dev_id)
 	}
 
 	if (likely(intsts & inten & INT_STS_RSFL_)) {
-		if (likely(netif_rx_schedule_prep(&pdata->napi))) {
+		if (likely(napi_schedule_prep(&pdata->napi))) {
 			/* Disable Rx interrupts */
 			temp = smsc911x_reg_read(pdata, INT_EN);
 			temp &= (~INT_EN_RSFL_EN_);
 			smsc911x_reg_write(pdata, INT_EN, temp);
 			/* Schedule a NAPI poll */
-			__netif_rx_schedule(&pdata->napi);
+			__napi_schedule(&pdata->napi);
 		} else {
 			SMSC_WARNING(RX_ERR,
-				"netif_rx_schedule_prep failed");
+				"napi_schedule_prep failed");
 		}
 		serviced = IRQ_HANDLED;
 	}
@@ -1545,7 +1540,7 @@ static void smsc911x_ethtool_getdrvinfo(struct net_device *dev,
 {
 	strlcpy(info->driver, SMSC_CHIPNAME, sizeof(info->driver));
 	strlcpy(info->version, SMSC_DRV_VERSION, sizeof(info->version));
-	strlcpy(info->bus_info, dev->dev.parent->bus_id,
+	strlcpy(info->bus_info, dev_name(dev->dev.parent),
 		sizeof(info->bus_info));
 }
 
@@ -1747,6 +1742,21 @@ static const struct net_device_ops smsc911x_netdev_ops = {
 #endif
 };
 
+/* copies the current mac address from hardware to dev->dev_addr */
+static void __devinit smsc911x_read_mac_address(struct net_device *dev)
+{
+	struct smsc911x_data *pdata = netdev_priv(dev);
+	u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH);
+	u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL);
+
+	dev->dev_addr[0] = (u8)(mac_low32);
+	dev->dev_addr[1] = (u8)(mac_low32 >> 8);
+	dev->dev_addr[2] = (u8)(mac_low32 >> 16);
+	dev->dev_addr[3] = (u8)(mac_low32 >> 24);
+	dev->dev_addr[4] = (u8)(mac_high16);
+	dev->dev_addr[5] = (u8)(mac_high16 >> 8);
+}
+
 /* Initializing private device structures, only called from probe */
 static int __devinit smsc911x_init(struct net_device *dev)
 {
@@ -1834,6 +1844,12 @@ static int __devinit smsc911x_init(struct net_device *dev)
 		SMSC_WARNING(PROBE,
 			"This driver is not intended for this chip revision");
 
+	/* workaround for platforms without an eeprom, where the mac address
+	 * is stored elsewhere and set by the bootloader.  This saves the
+	 * mac address before resetting the device */
+	if (pdata->config.flags & SMSC911X_SAVE_MAC_ADDRESS)
+		smsc911x_read_mac_address(dev);
+
 	/* Reset the LAN911x */
 	if (smsc911x_soft_reset(pdata))
 		return -ENODEV;
@@ -1892,9 +1908,9 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
 	struct net_device *dev;
 	struct smsc911x_data *pdata;
 	struct smsc911x_platform_config *config = pdev->dev.platform_data;
-	struct resource *res;
+	struct resource *res, *irq_res;
 	unsigned int intcfg = 0;
-	int res_size;
+	int res_size, irq_flags;
 	int retval;
 	DECLARE_MAC_BUF(mac);
 
@@ -1919,6 +1935,14 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
 	}
 	res_size = res->end - res->start;
 
+	irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!irq_res) {
+		pr_warning("%s: Could not allocate irq resource.\n",
+			SMSC_CHIPNAME);
+		retval = -ENODEV;
+		goto out_0;
+	}
+
 	if (!request_mem_region(res->start, res_size, SMSC_CHIPNAME)) {
 		retval = -EBUSY;
 		goto out_0;
@@ -1935,7 +1959,8 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
 
 	pdata = netdev_priv(dev);
 
-	dev->irq = platform_get_irq(pdev, 0);
+	dev->irq = irq_res->start;
+	irq_flags = irq_res->flags & IRQF_TRIGGER_MASK;
 	pdata->ioaddr = ioremap_nocache(res->start, res_size);
 
 	/* copy config parameters across to pdata */
@@ -1968,8 +1993,8 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
 	smsc911x_reg_write(pdata, INT_EN, 0);
 	smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF);
 
-	retval = request_irq(dev->irq, smsc911x_irqhandler, IRQF_DISABLED,
-			     dev->name, dev);
+	retval = request_irq(dev->irq, smsc911x_irqhandler,
+			     irq_flags | IRQF_SHARED, dev->name, dev);
 	if (retval) {
 		SMSC_WARNING(PROBE,
 			"Unable to claim requested irq: %d", dev->irq);
@@ -2005,14 +2030,7 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
 	} else {
 		/* Try reading mac address from device. if EEPROM is present
 		 * it will already have been set */
-		u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH);
-		u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL);
-		dev->dev_addr[0] = (u8)(mac_low32);
-		dev->dev_addr[1] = (u8)(mac_low32 >> 8);
-		dev->dev_addr[2] = (u8)(mac_low32 >> 16);
-		dev->dev_addr[3] = (u8)(mac_low32 >> 24);
-		dev->dev_addr[4] = (u8)(mac_high16);
-		dev->dev_addr[5] = (u8)(mac_high16 >> 8);
+		smsc911x_read_mac_address(dev);
 
 		if (is_valid_ether_addr(dev->dev_addr)) {
 			/* eeprom values are valid  so use them */