brcm47xx: use b53 phy driver for the switch in kernel 3.10

This makes it possible to use swconfig to controll the switch.

This was tested with devices using b43 and bgmac.
This was not tested on devices using tg3.
This does not support the adm switch used in some very old devices.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37304 3c298f89-4303-0410-b956-a3cf2f4a3e73

6 files changed, 553 insertions, 5 deletions

diff --git a/target/linux/brcm47xx/Makefile b/target/linux/brcm47xx/Makefile
index e059b4d8f5..8d412adf53 100644
--- a/target/linux/brcm47xx/Makefile
+++ b/target/linux/brcm47xx/Makefile
@@ -14,7 +14,7 @@ FEATURES:=squashfs usb pcmcia
 LINUX_VERSION:=3.8.13
 
 include $(INCLUDE_DIR)/target.mk
-DEFAULT_PACKAGES += wpad-mini kmod-switch kmod-diag nvram
+DEFAULT_PACKAGES += swconfig kmod-switch kmod-diag wpad-mini nvram
 
 define Target/Description
 	Build firmware images for Broadcom based routers
diff --git a/target/linux/brcm47xx/base-files/etc/init.d/netconfig b/target/linux/brcm47xx/base-files/etc/init.d/netconfig
index b4be21fe93..e420adbb95 100755
--- a/target/linux/brcm47xx/base-files/etc/init.d/netconfig
+++ b/target/linux/brcm47xx/base-files/etc/init.d/netconfig
@@ -140,7 +140,7 @@ start() {
 		if (model == "Dell TrueMobile 2300") {
 			c["lan_ifname"] = "eth0"
 			c["wan_ifname"] = "eth1"
-			c["vlan1ports"] = "0 1 2 3 4 5u"
+			c["vlan1ports"] = "0 1 2 3 4 5"
 			c["vlan2ports"] = ""
 		}
 		if (nvram["boardtype"] == "bcm94710r4") {
@@ -159,7 +159,7 @@ start() {
 				c["vlan2ports"] = "0 5t"
 			} else {
 				# Generic BCM94704
-				c["vlan1ports"] = "0 1 2 3 4 5u"
+				c["vlan1ports"] = "0 1 2 3 4 5"
 				c["vlan2ports"] = ""
 				c["lan_ifname"] = "eth0"
 				c["wan_ifname"] = "eth1"
@@ -173,7 +173,7 @@ start() {
 		}
 		# Buffalo WBR-B11 and Buffalo WBR-G54
 		if (nvram["boardtype"] == "bcm94710ap") {
-			c["vlan1ports"] = "0 1 2 3 4 5u"
+			c["vlan1ports"] = "0 1 2 3 4 5"
 			c["vlan2ports"] = ""
 			c["lan_ifname"] = "eth0"
 			c["wan_ifname"] = "eth1"
@@ -210,7 +210,7 @@ start() {
 		if (model == "ASUS WL-500W") {
 			c["lan_ifname"] = "eth0"
 			c["wan_ifname"] = "eth1"
-			c["vlan1ports"] = "0 1 2 3 4 5u"
+			c["vlan1ports"] = "0 1 2 3 4 5"
 			c["vlan2ports"] = ""
 		}
 		if (model == "OvisLink WL-1600GL") {
diff --git a/target/linux/brcm47xx/config-3.10 b/target/linux/brcm47xx/config-3.10
index 0f7e12e666..bf58325e79 100644
--- a/target/linux/brcm47xx/config-3.10
+++ b/target/linux/brcm47xx/config-3.10
@@ -7,6 +7,10 @@ CONFIG_ARCH_SUSPEND_POSSIBLE=y
 CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
 CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
 # CONFIG_ARPD is not set
+CONFIG_B53=y
+# CONFIG_B53_MMAP_DRIVER is not set
+CONFIG_B53_PHY_DRIVER=y
+CONFIG_B53_PHY_FIXUP=y
 CONFIG_BCM47XX=y
 CONFIG_BCM47XX_BCMA=y
 CONFIG_BCM47XX_SSB=y
@@ -139,6 +143,7 @@ CONFIG_SSB_PCIHOST=y
 CONFIG_SSB_PCIHOST_POSSIBLE=y
 CONFIG_SSB_SERIAL=y
 CONFIG_SSB_SPROM=y
+CONFIG_SWCONFIG=y
 CONFIG_SYS_HAS_CPU_MIPS32_R1=y
 CONFIG_SYS_HAS_CPU_MIPS32_R2=y
 CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
diff --git a/target/linux/brcm47xx/patches-3.10/770-bgmac-phylib.patch b/target/linux/brcm47xx/patches-3.10/770-bgmac-phylib.patch
new file mode 100644
index 0000000000..6041d2a77a
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.10/770-bgmac-phylib.patch
@@ -0,0 +1,208 @@
+--- a/drivers/net/ethernet/broadcom/Kconfig
++++ b/drivers/net/ethernet/broadcom/Kconfig
+@@ -133,6 +133,7 @@ config BNX2X_SRIOV
+ config BGMAC
+ 	tristate "BCMA bus GBit core support"
+ 	depends on BCMA_HOST_SOC && HAS_DMA
++	select PHYLIB
+ 	---help---
+ 	  This driver supports GBit MAC and BCM4706 GBit MAC cores on BCMA bus.
+ 	  They can be found on BCM47xx SoCs and provide gigabit ethernet.
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -1201,27 +1201,14 @@ static int bgmac_set_mac_address(struct
+ static int bgmac_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
+ {
+ 	struct bgmac *bgmac = netdev_priv(net_dev);
+-	struct mii_ioctl_data *data = if_mii(ifr);
+ 
+-	switch (cmd) {
+-	case SIOCGMIIPHY:
+-		data->phy_id = bgmac->phyaddr;
+-		/* fallthru */
+-	case SIOCGMIIREG:
+-		if (!netif_running(net_dev))
+-			return -EAGAIN;
+-		data->val_out = bgmac_phy_read(bgmac, data->phy_id,
+-					       data->reg_num & 0x1f);
+-		return 0;
+-	case SIOCSMIIREG:
+-		if (!netif_running(net_dev))
+-			return -EAGAIN;
+-		bgmac_phy_write(bgmac, data->phy_id, data->reg_num & 0x1f,
+-				data->val_in);
+-		return 0;
+-	default:
+-		return -EOPNOTSUPP;
+-	}
++ 	if (!netif_running(net_dev))
++ 		return -EINVAL;
++
++	if (!bgmac->phydev)
++		return -EINVAL;
++
++	return phy_mii_ioctl(bgmac->phydev, ifr, cmd);
+ }
+ 
+ static const struct net_device_ops bgmac_netdev_ops = {
+@@ -1243,61 +1230,18 @@ static int bgmac_get_settings(struct net
+ {
+ 	struct bgmac *bgmac = netdev_priv(net_dev);
+ 
+-	cmd->supported = SUPPORTED_10baseT_Half |
+-			 SUPPORTED_10baseT_Full |
+-			 SUPPORTED_100baseT_Half |
+-			 SUPPORTED_100baseT_Full |
+-			 SUPPORTED_1000baseT_Half |
+-			 SUPPORTED_1000baseT_Full |
+-			 SUPPORTED_Autoneg;
+-
+-	if (bgmac->autoneg) {
+-		WARN_ON(cmd->advertising);
+-		if (bgmac->full_duplex) {
+-			if (bgmac->speed & BGMAC_SPEED_10)
+-				cmd->advertising |= ADVERTISED_10baseT_Full;
+-			if (bgmac->speed & BGMAC_SPEED_100)
+-				cmd->advertising |= ADVERTISED_100baseT_Full;
+-			if (bgmac->speed & BGMAC_SPEED_1000)
+-				cmd->advertising |= ADVERTISED_1000baseT_Full;
+-		} else {
+-			if (bgmac->speed & BGMAC_SPEED_10)
+-				cmd->advertising |= ADVERTISED_10baseT_Half;
+-			if (bgmac->speed & BGMAC_SPEED_100)
+-				cmd->advertising |= ADVERTISED_100baseT_Half;
+-			if (bgmac->speed & BGMAC_SPEED_1000)
+-				cmd->advertising |= ADVERTISED_1000baseT_Half;
+-		}
+-	} else {
+-		switch (bgmac->speed) {
+-		case BGMAC_SPEED_10:
+-			ethtool_cmd_speed_set(cmd, SPEED_10);
+-			break;
+-		case BGMAC_SPEED_100:
+-			ethtool_cmd_speed_set(cmd, SPEED_100);
+-			break;
+-		case BGMAC_SPEED_1000:
+-			ethtool_cmd_speed_set(cmd, SPEED_1000);
+-			break;
+-		}
+-	}
+-
+-	cmd->duplex = bgmac->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
+-
+-	cmd->autoneg = bgmac->autoneg;
+-
+-	return 0;
++	return phy_ethtool_gset(bgmac->phydev, cmd);
+ }
+ 
+-#if 0
++
+ static int bgmac_set_settings(struct net_device *net_dev,
+ 			      struct ethtool_cmd *cmd)
+ {
+ 	struct bgmac *bgmac = netdev_priv(net_dev);
+ 
+-	return -1;
++	return phy_ethtool_sset(bgmac->phydev, cmd);
+ }
+-#endif
++
+ 
+ static void bgmac_get_drvinfo(struct net_device *net_dev,
+ 			      struct ethtool_drvinfo *info)
+@@ -1308,6 +1252,7 @@ static void bgmac_get_drvinfo(struct net
+ 
+ static const struct ethtool_ops bgmac_ethtool_ops = {
+ 	.get_settings		= bgmac_get_settings,
++	.set_settings		= bgmac_set_settings,
+ 	.get_drvinfo		= bgmac_get_drvinfo,
+ };
+ 
+@@ -1326,10 +1271,42 @@ static int bgmac_mii_write(struct mii_bu
+ 	return bgmac_phy_write(bus->priv, mii_id, regnum, value);
+ }
+ 
++static void bgmac_adjust_link(struct net_device *dev)
++{
++	struct bgmac *bgmac = netdev_priv(dev);
++	struct phy_device *phydev = bgmac->phydev;
++	int status_changed = 0;
++
++	BUG_ON(!phydev);
++
++	if (bgmac->old_link != phydev->link) {
++		status_changed = 1;
++		bgmac->old_link = phydev->link;
++	}
++
++	/* reflect duplex change */
++	if (phydev->link && (bgmac->old_duplex != phydev->duplex)) {
++		status_changed = 1;
++		bgmac->old_duplex = phydev->duplex;
++	}
++
++	if (status_changed) {
++		pr_info("%s: link %s", dev->name, phydev->link ?
++			"UP" : "DOWN");
++		if (phydev->link)
++			pr_cont(" - %d/%s", phydev->speed,
++			phydev->duplex == DUPLEX_FULL ? "full" : "half");
++		pr_cont("\n");
++	}
++}
++
+ static int bgmac_mii_register(struct bgmac *bgmac)
+ {
+ 	struct mii_bus *mii_bus;
+ 	int i, err = 0;
++	struct phy_device *phydev = NULL;
++	char phy_id[MII_BUS_ID_SIZE + 3];
++	struct net_device *net_dev = bgmac->net_dev;
+ 
+ 	mii_bus = mdiobus_alloc();
+ 	if (!mii_bus)
+@@ -1360,7 +1337,29 @@ static int bgmac_mii_register(struct bgm
+ 
+ 	bgmac->mii_bus = mii_bus;
+ 
+-	return err;
++	/* connect to PHY */
++	snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
++		 mii_bus->id, bgmac->phyaddr);
++
++	phydev = phy_connect(net_dev, phy_id, &bgmac_adjust_link,
++			     PHY_INTERFACE_MODE_MII);
++
++	if (IS_ERR(phydev)) {
++		netdev_err(net_dev, "could not attach PHY: %s", phy_id);
++		bgmac->phyaddr = BGMAC_PHY_NOREGS;
++		return PTR_ERR(phydev);
++	}
++
++	bgmac->phydev = phydev;
++	bgmac->old_link = 0;
++	bgmac->old_duplex = -1;
++	bgmac->phyaddr = phydev->addr;
++
++	netdev_info(net_dev, "attached PHY driver [%s] "
++		"(mii_bus:phy_addr=%s)\n",
++		phydev->drv->name, dev_name(&phydev->dev));
++
++	return 0;
+ 
+ err_free_irq:
+ 	kfree(mii_bus->irq);
+--- a/drivers/net/ethernet/broadcom/bgmac.h
++++ b/drivers/net/ethernet/broadcom/bgmac.h
+@@ -399,7 +399,10 @@ struct bgmac {
+ 	struct bcma_device *cmn; /* Reference to CMN core for BCM4706 */
+ 	struct net_device *net_dev;
+ 	struct napi_struct napi;
++	struct phy_device *phydev;
+ 	struct mii_bus *mii_bus;
++	int old_link;
++	int old_duplex;
+ 
+ 	/* DMA */
+ 	struct bgmac_dma_ring tx_ring[BGMAC_MAX_TX_RINGS];
diff --git a/target/linux/brcm47xx/patches-3.10/780-b43-phylib.patch b/target/linux/brcm47xx/patches-3.10/780-b43-phylib.patch
new file mode 100644
index 0000000000..72b374ce55
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.10/780-b43-phylib.patch
@@ -0,0 +1,330 @@
+--- a/drivers/net/ethernet/broadcom/Kconfig
++++ b/drivers/net/ethernet/broadcom/Kconfig
+@@ -24,6 +24,7 @@ config B44
+ 	select SSB
+ 	select NET_CORE
+ 	select MII
++	select PHYLIB
+ 	---help---
+ 	  If you have a network (Ethernet) controller of this type, say Y
+ 	  or M and read the Ethernet-HOWTO, available from
+--- a/drivers/net/ethernet/broadcom/b44.c
++++ b/drivers/net/ethernet/broadcom/b44.c
+@@ -29,6 +29,7 @@
+ #include <linux/dma-mapping.h>
+ #include <linux/ssb/ssb.h>
+ #include <linux/slab.h>
++#include <linux/phy.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/io.h>
+@@ -300,21 +301,23 @@ static inline int b44_writephy(struct b4
+ }
+ 
+ /* miilib interface */
+-static int b44_mii_read(struct net_device *dev, int phy_id, int location)
++static int b44_mii_read(struct mii_bus *bus, int phy_id, int location)
+ {
+ 	u32 val;
+-	struct b44 *bp = netdev_priv(dev);
++	struct b44 *bp = bus->priv;
+ 	int rc = __b44_readphy(bp, phy_id, location, &val);
+ 	if (rc)
+ 		return 0xffffffff;
+ 	return val;
+ }
+ 
+-static void b44_mii_write(struct net_device *dev, int phy_id, int location,
+-			 int val)
++static int b44_mii_write(struct mii_bus *bus, int phy_id, int location,
++			 u16 val)
+ {
+-	struct b44 *bp = netdev_priv(dev);
++	struct b44 *bp = bus->priv;
+ 	__b44_writephy(bp, phy_id, location, val);
++
++	return 0;
+ }
+ 
+ static int b44_phy_reset(struct b44 *bp)
+@@ -1821,102 +1824,24 @@ static int b44_get_settings(struct net_d
+ {
+ 	struct b44 *bp = netdev_priv(dev);
+ 
+-	cmd->supported = (SUPPORTED_Autoneg);
+-	cmd->supported |= (SUPPORTED_100baseT_Half |
+-			  SUPPORTED_100baseT_Full |
+-			  SUPPORTED_10baseT_Half |
+-			  SUPPORTED_10baseT_Full |
+-			  SUPPORTED_MII);
+-
+-	cmd->advertising = 0;
+-	if (bp->flags & B44_FLAG_ADV_10HALF)
+-		cmd->advertising |= ADVERTISED_10baseT_Half;
+-	if (bp->flags & B44_FLAG_ADV_10FULL)
+-		cmd->advertising |= ADVERTISED_10baseT_Full;
+-	if (bp->flags & B44_FLAG_ADV_100HALF)
+-		cmd->advertising |= ADVERTISED_100baseT_Half;
+-	if (bp->flags & B44_FLAG_ADV_100FULL)
+-		cmd->advertising |= ADVERTISED_100baseT_Full;
+-	cmd->advertising |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;
+-	ethtool_cmd_speed_set(cmd, ((bp->flags & B44_FLAG_100_BASE_T) ?
+-				    SPEED_100 : SPEED_10));
+-	cmd->duplex = (bp->flags & B44_FLAG_FULL_DUPLEX) ?
+-		DUPLEX_FULL : DUPLEX_HALF;
+-	cmd->port = 0;
+-	cmd->phy_address = bp->phy_addr;
+-	cmd->transceiver = (bp->flags & B44_FLAG_INTERNAL_PHY) ?
+-		XCVR_INTERNAL : XCVR_EXTERNAL;
+-	cmd->autoneg = (bp->flags & B44_FLAG_FORCE_LINK) ?
+-		AUTONEG_DISABLE : AUTONEG_ENABLE;
+-	if (cmd->autoneg == AUTONEG_ENABLE)
+-		cmd->advertising |= ADVERTISED_Autoneg;
+-	if (!netif_running(dev)){
+-		ethtool_cmd_speed_set(cmd, 0);
+-		cmd->duplex = 0xff;
+-	}
+-	cmd->maxtxpkt = 0;
+-	cmd->maxrxpkt = 0;
+-	return 0;
++	return phy_ethtool_gset(bp->phydev, cmd);
+ }
+ 
+ static int b44_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+ {
+ 	struct b44 *bp = netdev_priv(dev);
+-	u32 speed = ethtool_cmd_speed(cmd);
+-
+-	/* We do not support gigabit. */
+-	if (cmd->autoneg == AUTONEG_ENABLE) {
+-		if (cmd->advertising &
+-		    (ADVERTISED_1000baseT_Half |
+-		     ADVERTISED_1000baseT_Full))
+-			return -EINVAL;
+-	} else if ((speed != SPEED_100 &&
+-		    speed != SPEED_10) ||
+-		   (cmd->duplex != DUPLEX_HALF &&
+-		    cmd->duplex != DUPLEX_FULL)) {
+-			return -EINVAL;
+-	}
++	int ret;
+ 
+ 	spin_lock_irq(&bp->lock);
+ 
+-	if (cmd->autoneg == AUTONEG_ENABLE) {
+-		bp->flags &= ~(B44_FLAG_FORCE_LINK |
+-			       B44_FLAG_100_BASE_T |
+-			       B44_FLAG_FULL_DUPLEX |
+-			       B44_FLAG_ADV_10HALF |
+-			       B44_FLAG_ADV_10FULL |
+-			       B44_FLAG_ADV_100HALF |
+-			       B44_FLAG_ADV_100FULL);
+-		if (cmd->advertising == 0) {
+-			bp->flags |= (B44_FLAG_ADV_10HALF |
+-				      B44_FLAG_ADV_10FULL |
+-				      B44_FLAG_ADV_100HALF |
+-				      B44_FLAG_ADV_100FULL);
+-		} else {
+-			if (cmd->advertising & ADVERTISED_10baseT_Half)
+-				bp->flags |= B44_FLAG_ADV_10HALF;
+-			if (cmd->advertising & ADVERTISED_10baseT_Full)
+-				bp->flags |= B44_FLAG_ADV_10FULL;
+-			if (cmd->advertising & ADVERTISED_100baseT_Half)
+-				bp->flags |= B44_FLAG_ADV_100HALF;
+-			if (cmd->advertising & ADVERTISED_100baseT_Full)
+-				bp->flags |= B44_FLAG_ADV_100FULL;
+-		}
+-	} else {
+-		bp->flags |= B44_FLAG_FORCE_LINK;
+-		bp->flags &= ~(B44_FLAG_100_BASE_T | B44_FLAG_FULL_DUPLEX);
+-		if (speed == SPEED_100)
+-			bp->flags |= B44_FLAG_100_BASE_T;
+-		if (cmd->duplex == DUPLEX_FULL)
+-			bp->flags |= B44_FLAG_FULL_DUPLEX;
+-	}
+-
+ 	if (netif_running(dev))
+ 		b44_setup_phy(bp);
+ 
++	ret = phy_ethtool_sset(bp->phydev, cmd);
++
+ 	spin_unlock_irq(&bp->lock);
+ 
+-	return 0;
++	return ret;
+ }
+ 
+ static void b44_get_ringparam(struct net_device *dev,
+@@ -2092,20 +2017,81 @@ static const struct ethtool_ops b44_etht
+ 
+ static int b44_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ {
+-	struct mii_ioctl_data *data = if_mii(ifr);
+ 	struct b44 *bp = netdev_priv(dev);
+ 	int err = -EINVAL;
+ 
+ 	if (!netif_running(dev))
+ 		goto out;
+ 
++	if (!bp->phydev)
++		return -EINVAL;
++
+ 	spin_lock_irq(&bp->lock);
+-	err = generic_mii_ioctl(&bp->mii_if, data, cmd, NULL);
++	err = phy_mii_ioctl(bp->phydev, ifr, cmd);
+ 	spin_unlock_irq(&bp->lock);
+ out:
+ 	return err;
+ }
+ 
++static void b44_adjust_link(struct net_device *dev)
++{
++	struct b44 *bp = netdev_priv(dev);
++	struct phy_device *phydev = bp->phydev;
++	int status_changed = 0;
++
++	BUG_ON(!phydev);
++
++	if (bp->old_link != phydev->link) {
++		status_changed = 1;
++		bp->old_link = phydev->link;
++	}
++
++	/* reflect duplex change */
++	if (phydev->link && (bp->old_duplex != phydev->duplex)) {
++		status_changed = 1;
++		bp->old_duplex = phydev->duplex;
++	}
++
++	if (status_changed) {
++		pr_info("%s: link %s", dev->name, phydev->link ?
++			"UP" : "DOWN");
++		if (phydev->link)
++			pr_cont(" - %d/%s", phydev->speed,
++			phydev->duplex == DUPLEX_FULL ? "full" : "half");
++		pr_cont("\n");
++	}
++}
++
++static int b44_mii_probe(struct net_device *dev)
++{
++	struct b44 *bp = netdev_priv(dev);
++	struct phy_device *phydev = NULL;
++	char phy_id[MII_BUS_ID_SIZE + 3];
++
++	/* connect to PHY */
++	snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
++		 bp->mii_bus->id, bp->phy_addr);
++
++	phydev = phy_connect(dev, phy_id, &b44_adjust_link,
++			     PHY_INTERFACE_MODE_MII);
++	if (IS_ERR(phydev)) {
++		netdev_err(dev, "could not attach PHY: %s", phy_id);
++		bp->phy_addr = B44_PHY_ADDR_NO_PHY;
++		return PTR_ERR(phydev);
++	}
++
++	bp->phydev = phydev;
++	bp->old_link = 0;
++	bp->old_duplex = -1;
++	bp->phy_addr = phydev->addr;
++
++	netdev_info(dev, "attached PHY driver [%s] "
++		"(mii_bus:phy_addr=%s)\n",
++		phydev->drv->name, dev_name(&phydev->dev));
++
++	return 0;
++}
++
+ static int b44_get_invariants(struct b44 *bp)
+ {
+ 	struct ssb_device *sdev = bp->sdev;
+@@ -2225,12 +2211,38 @@ static int b44_init_one(struct ssb_devic
+ 		goto err_out_powerdown;
+ 	}
+ 
+-	bp->mii_if.dev = dev;
+-	bp->mii_if.mdio_read = b44_mii_read;
+-	bp->mii_if.mdio_write = b44_mii_write;
+-	bp->mii_if.phy_id = bp->phy_addr;
+-	bp->mii_if.phy_id_mask = 0x1f;
+-	bp->mii_if.reg_num_mask = 0x1f;
++	bp->mii_bus = mdiobus_alloc();
++	if (!bp->mii_bus) {
++		dev_err(sdev->dev, "mdiobus_alloc() failed\n");
++		err = -ENOMEM;
++		goto err_out_powerdown;
++	}
++
++	bp->mii_bus->priv = bp;
++	bp->mii_bus->read = b44_mii_read;
++	bp->mii_bus->write = b44_mii_write;
++	bp->mii_bus->name = "b44_eth_mii";
++	snprintf(bp->mii_bus->id, MII_BUS_ID_SIZE, "%x", instance);
++	bp->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
++	if (!bp->mii_bus->irq) {
++		dev_err(sdev->dev, "mii_bus irq allocation failed\n");
++		err = -ENOMEM;
++		goto err_out_mdiobus;
++	}
++
++	memset(bp->mii_bus->irq, PHY_POLL, sizeof(int) * PHY_MAX_ADDR);
++
++	err = mdiobus_register(bp->mii_bus);
++	if (err) {
++		dev_err(sdev->dev, "failed to register MII bus\n");
++		goto err_out_mdiobus_irq;
++	}
++
++	err = b44_mii_probe(dev);
++	if (err) {
++		dev_err(sdev->dev, "failed to probe MII bus\n");
++		goto err_out_mdiobus_unregister;
++	}
+ 
+ 	/* By default, advertise all speed/duplex settings. */
+ 	bp->flags |= (B44_FLAG_ADV_10HALF | B44_FLAG_ADV_10FULL |
+@@ -2262,6 +2274,16 @@ static int b44_init_one(struct ssb_devic
+ 
+ 	return 0;
+ 
++
++err_out_mdiobus_unregister:
++	mdiobus_unregister(bp->mii_bus);
++
++err_out_mdiobus_irq:
++	kfree(bp->mii_bus->irq);
++
++err_out_mdiobus:
++	mdiobus_free(bp->mii_bus);
++
+ err_out_powerdown:
+ 	ssb_bus_may_powerdown(sdev->bus);
+ 
+@@ -2275,8 +2297,12 @@ out:
+ static void b44_remove_one(struct ssb_device *sdev)
+ {
+ 	struct net_device *dev = ssb_get_drvdata(sdev);
++	struct b44 *bp = netdev_priv(dev);
+ 
+ 	unregister_netdev(dev);
++	mdiobus_unregister(bp->mii_bus);
++	kfree(bp->mii_bus->irq);
++	mdiobus_free(bp->mii_bus);
+ 	ssb_device_disable(sdev, 0);
+ 	ssb_bus_may_powerdown(sdev->bus);
+ 	free_netdev(dev);
+--- a/drivers/net/ethernet/broadcom/b44.h
++++ b/drivers/net/ethernet/broadcom/b44.h
+@@ -396,7 +396,10 @@ struct b44 {
+ 	u32			tx_pending;
+ 	u8			phy_addr;
+ 	u8			force_copybreak;
+-	struct mii_if_info	mii_if;
++	struct phy_device	*phydev;
++	struct mii_bus		*mii_bus;
++	int			old_link;
++	int			old_duplex;
+ };
+ 
+ #endif /* _B44_H */
diff --git a/target/linux/generic/files/drivers/net/phy/b53/b53_common.c b/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
index c74bf7fbcb..86e3a787fb 100644
--- a/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
+++ b/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
@@ -1155,8 +1155,13 @@ int b53_switch_init(struct b53_device *dev)
 			dev->enabled_ports &= ~BIT(4);
 			break;
 		default:
+/* On the BCM47XX SoCs this is the supported internal switch.*/
+#ifndef CONFIG_BCM47XX
 			/* BCM5325M */
 			return -EINVAL;
+#else
+			break;
+#endif
 		}
 	} else if (dev->chip_id == BCM53115_DEVICE_ID) {
 		u64 strap_value;