fix switch support on the Compex WP18/NP18A

SVN-Revision: 10611

target/linux/ixp4xx/patches-2.6.23/202-npe_driver_no_phy.patch

@@ -0,0 +1,41 @@
+diff -Nur linux-2.6.23.16/drivers/net/arm/ixp4xx_eth.c linux-2.6.23.16-owrt/drivers/net/arm/ixp4xx_eth.c
+--- linux-2.6.23.16/drivers/net/arm/ixp4xx_eth.c	2008-02-15 18:18:02.000000000 +0100
++++ linux-2.6.23.16-owrt/drivers/net/arm/ixp4xx_eth.c	2008-02-18 12:14:42.000000000 +0100
+@@ -297,6 +297,27 @@
+ 	unsigned long flags;
+ 	u16 val;
+ 
++	/* For boards that use a switch chip (eg. Marvell 88E6060) */
++	if ( phy_id < 0 || phy_id > 31 ) {
++		switch (location) {
++		case MII_BMCR:
++			val = 0x3100;
++			break;
++		case MII_BMSR:
++			val = 0x406d;
++			break;
++		case MII_ADVERTISE:
++			val = 0x0101;
++			break;
++		case MII_LPA:
++			val = 0x4101;
++			break;
++		default:
++			val = 0;
++			break;
++		}
++		return val;
++	}
+ 	spin_lock_irqsave(&mdio_lock, flags);
+ 	val = mdio_cmd(dev, phy_id, location, 0, 0);
+ 	spin_unlock_irqrestore(&mdio_lock, flags);
+@@ -308,6 +329,9 @@
+ {
+ 	unsigned long flags;
+ 
++	if ( phy_id < 0 || phy_id > 31 ) {
++		return;
++	}
+ 	spin_lock_irqsave(&mdio_lock, flags);
+ 	mdio_cmd(dev, phy_id, location, 1, val);
+ 	spin_unlock_irqrestore(&mdio_lock, flags);