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.

SVN-Revision: 37304

1 files changed, 330 insertions, 0 deletions

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 0000000..72b374c
--- /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 */