openwrt_lede/target/linux/ixp4xx/patches-4.4/207-npe_driver_multiphy_support.patch

TODO: take care of additional PHYs through the PHY abstraction layer

--- a/arch/arm/mach-ixp4xx/include/mach/platform.h
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -95,12 +95,23 @@ struct ixp4xx_pata_data {
 #define IXP4XX_ETH_NPEB		0x10
 #define IXP4XX_ETH_NPEC		0x20
 
+#define IXP4XX_ETH_PHY_MAX_ADDR	32
+
 /* Information about built-in Ethernet MAC interfaces */
 struct eth_plat_info {
 	u8 phy;		/* MII PHY ID, 0 - 31 */
 	u8 rxq;		/* configurable, currently 0 - 31 only */
 	u8 txreadyq;
 	u8 hwaddr[6];
+
+	u32 phy_mask;
+#if 0
+	int speed;
+	int duplex;
+#else
+	int speed_10;
+	int half_duplex;
+#endif
 };
 
 /* Information about built-in HSS (synchronous serial) interfaces */
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -610,6 +610,37 @@ static int ixp4xx_phy_connect(struct net
 	struct eth_plat_info *plat = port->plat;
 	char phy_id[MII_BUS_ID_SIZE + 3];
 
+	if (plat->phy == IXP4XX_ETH_PHY_MAX_ADDR) {
+#if 0
+		switch (plat->speed) {
+		case SPEED_10:
+		case SPEED_100:
+			break;
+		default:
+			printk(KERN_ERR "%s: invalid speed (%d)\n",
+					dev->name, plat->speed);
+			return -EINVAL;
+		}
+
+		switch (plat->duplex) {
+		case DUPLEX_HALF:
+		case DUPLEX_FULL:
+			break;
+		default:
+			printk(KERN_ERR "%s: invalid duplex mode (%d)\n",
+					dev->name, plat->duplex);
+			return -EINVAL;
+		}
+		port->speed = plat->speed;
+		port->duplex = plat->duplex;
+#else
+		port->speed = plat->speed_10 ? SPEED_10 : SPEED_100;
+		port->duplex = plat->half_duplex ? DUPLEX_HALF : DUPLEX_FULL;
+#endif
+
+		return 0;
+	}
+
 	snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT,
 		mdio_bus->id, plat->phy);
 	port->phydev = phy_connect(dev, phy_id, &ixp4xx_adjust_link,
@@ -632,21 +663,32 @@ static void ixp4xx_phy_disconnect(struct
 {
 	struct port *port = netdev_priv(dev);
 
-	phy_disconnect(port->phydev);
+	if (port->phydev)
+		phy_disconnect(port->phydev);
 }
 
 static void ixp4xx_phy_start(struct net_device *dev)
 {
 	struct port *port = netdev_priv(dev);
 
-	phy_start(port->phydev);
+	if (port->phydev) {
+		phy_start(port->phydev);
+	} else {
+		port->link = 1;
+		ixp4xx_update_link(dev);
+	}
 }
 
 static void ixp4xx_phy_stop(struct net_device *dev)
 {
 	struct port *port = netdev_priv(dev);
 
-	phy_stop(port->phydev);
+	if (port->phydev) {
+		phy_stop(port->phydev);
+	} else {
+		port->link = 0;
+		ixp4xx_update_link(dev);
+	}
 }
 
 static inline void debug_pkt(struct net_device *dev, const char *func,
@@ -1048,6 +1090,9 @@ static int eth_ioctl(struct net_device *
 			return hwtstamp_get(dev, req);
 	}
 
+	if (!port->phydev)
+		return -EOPNOTSUPP;
+
 	return phy_mii_ioctl(port->phydev, req, cmd);
 }
 
@@ -1068,18 +1113,30 @@ static void ixp4xx_get_drvinfo(struct ne
 static int ixp4xx_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
 	struct port *port = netdev_priv(dev);
+
+	if (!port->phydev)
+		return -EOPNOTSUPP;
+
 	return phy_ethtool_gset(port->phydev, cmd);
 }
 
 static int ixp4xx_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
 	struct port *port = netdev_priv(dev);
+
+	if (!port->phydev)
+		return -EOPNOTSUPP;
+
 	return phy_ethtool_sset(port->phydev, cmd);
 }
 
 static int ixp4xx_nway_reset(struct net_device *dev)
 {
 	struct port *port = netdev_priv(dev);
+
+	if (!port->phydev)
+		return -EOPNOTSUPP;
+
 	return phy_start_aneg(port->phydev);
 }