[PATCH] 3c59x: fix networking for 10base2 NICs

The "3c59x: use mii_check_media" patch introduced a netif_carrier_off in
vortex_up.  10base2 stoped working because of this.  This is removed.

Tx/Rx reset is back in vortex_up because the 3c900B-Combo stops working after
changing from half duplex to full duplex when Tx/Rx reset is done with
vortex_timer.

Also brought back some mii stuff to be sure that it does not break something
else.

Thanks to Pete Clements <clem@clem.clem-digital.net> for reporting and testing.
Signed-off-by: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/net/3c59x.c

@@ -788,7 +788,7 @@ struct vortex_private {
 	int options;						/* User-settable misc. driver options. */
 	unsigned int media_override:4, 		/* Passed-in media type. */
 		default_media:4,				/* Read from the EEPROM/Wn3_Config. */
-		full_duplex:1, force_fd:1, autoselect:1,
+		full_duplex:1, autoselect:1,
 		bus_master:1,					/* Vortex can only do a fragment bus-m. */
 		full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang  */
 		flow_ctrl:1,					/* Use 802.3x flow control (PAUSE only) */
@@ -1633,12 +1633,6 @@ vortex_set_duplex(struct net_device *dev)
 			((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
 					0x100 : 0),
 			ioaddr + Wn3_MAC_Ctrl);
-
-	issue_and_wait(dev, TxReset);
-	/*
-	 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
-	 */
-	issue_and_wait(dev, RxReset|0x04);
 }
 
 static void vortex_check_media(struct net_device *dev, unsigned int init)
@@ -1663,7 +1657,7 @@ vortex_up(struct net_device *dev)
 	struct vortex_private *vp = netdev_priv(dev);
 	void __iomem *ioaddr = vp->ioaddr;
 	unsigned int config;
-	int i;
+	int i, mii_reg1, mii_reg5;
 
 	if (VORTEX_PCI(vp)) {
 		pci_set_power_state(VORTEX_PCI(vp), PCI_D0);	/* Go active */
@@ -1723,14 +1717,23 @@ vortex_up(struct net_device *dev)
 		printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config);
 	iowrite32(config, ioaddr + Wn3_Config);
 
-	netif_carrier_off(dev);
 	if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
 		EL3WINDOW(4);
+		mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
+		mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
+		vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
+
 		vortex_check_media(dev, 1);
 	}
 	else
 		vortex_set_duplex(dev);
 
+	issue_and_wait(dev, TxReset);
+	/*
+	 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
+	 */
+	issue_and_wait(dev, RxReset|0x04);
+
 
 	iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);