[ar7] add back the fixed PHY patches from #3124, until we move this to platform_data

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17107 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 92 insertions, 0 deletions

diff --git a/target/linux/ar7/patches-2.6.27/910-cpmac_fixed_phy.patch b/target/linux/ar7/patches-2.6.27/910-cpmac_fixed_phy.patch
new file mode 100644
index 000000000..dd4bb76a3
--- /dev/null
+++ b/target/linux/ar7/patches-2.6.27/910-cpmac_fixed_phy.patch
@@ -0,0 +1,92 @@
+This is a hack to make cpmac work with the external switch on a DG834 v3; it
+should also work on other similar routers. It has not been tested on hardware
+with multiple cpmac devices or with no external switch. It may be safer to
+move external_switch to pdata rather than trying to detect it, and to set
+phy_mask correctly rather than moving the phy search loop.
+
+--- a/drivers/net/cpmac.c	2008-11-11 06:18:24.000000000 +1100
++++ b/drivers/net/cpmac.c	2009-04-11 10:58:58.000000000 +1000
+@@ -1124,8 +1124,8 @@
+ 
+ static int __devinit cpmac_probe(struct platform_device *pdev)
+ {
+	int rc, phy_id;
+-	char *mdio_bus_id = "0";
++	char mdio_bus_id[BUS_ID_SIZE];
+ 	struct resource *mem;
+ 	struct cpmac_priv *priv;
+ 	struct net_device *dev;
+@@ -1134,22 +1134,23 @@
+ 
+ 	pdata = pdev->dev.platform_data;
+ 
+-	for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
+-		if (!(pdata->phy_mask & (1 << phy_id)))
+-			continue;
+-		if (!cpmac_mii.phy_map[phy_id])
+-			continue;
+-		break;
++	if (external_switch || dumb_switch) {
++		strncpy(mdio_bus_id, "0", BUS_ID_SIZE); /* fixed phys bus */
++		phy_id = pdev->id;
++	} else {
++		for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
++			if (!(pdata->phy_mask & (1 << phy_id)))
++				continue;
++			if (!cpmac_mii.phy_map[phy_id])
++				continue;
++			strncpy(mdio_bus_id, cpmac_mii.id, BUS_ID_SIZE);
++			break;
++		}
+ 	}
+ 
+ 	if (phy_id == PHY_MAX_ADDR) {
+-		if (external_switch || dumb_switch) {
+-			mdio_bus_id = 0; /* fixed phys bus */
+-			phy_id = pdev->id;
+-		} else {
+-			dev_err(&pdev->dev, "no PHY present\n");
+-			return -ENODEV;
+-		}
++		dev_err(&pdev->dev, "no PHY present\n");
++		return -ENODEV;
+ 	}
+ 
+ #ifdef CONFIG_NETDEVICES_MULTIQUEUE
+@@ -1189,9 +1190,11 @@
+ 	priv->ring_size = 64;
+ 	priv->msg_enable = netif_msg_init(debug_level, 0xff);
+ 	memcpy(dev->dev_addr, pdata->dev_addr, sizeof(dev->dev_addr));
++	
++	snprintf(priv->phy_name, BUS_ID_SIZE, PHY_ID_FMT, mdio_bus_id, phy_id);
+ 
+-	priv->phy = phy_connect(dev, cpmac_mii.phy_map[phy_id]->dev.bus_id,
+-				&cpmac_adjust_link, 0, PHY_INTERFACE_MODE_MII);
++	priv->phy = phy_connect(dev, priv->phy_name, &cpmac_adjust_link, 0,
++	 			PHY_INTERFACE_MODE_MII);
+ 	if (IS_ERR(priv->phy)) {
+ 		if (netif_msg_drv(priv))
+ 			printk(KERN_ERR "%s: Could not attach to PHY\n",
+@@ -1250,11 +1253,11 @@
+ 
+ 	cpmac_mii.reset(&cpmac_mii);
+ 
+-	for (i = 0; i < 300000; i++)
++	for (i = 0; i < 300; i++)
+ 		if ((mask = cpmac_read(cpmac_mii.priv, CPMAC_MDIO_ALIVE)))
+ 			break;
+ 		else
+-			cpu_relax();
++			msleep(10);
+ 
+ 	mask &= 0x7fffffff;
+ 	if (mask & (mask - 1)) {
+@@ -1267,7 +1270,7 @@
+ 	}
+ 
+ 	cpmac_mii.phy_mask = ~(mask | 0x80000000);
+-	snprintf(cpmac_mii.id, MII_BUS_ID_SIZE, "0");
++	snprintf(cpmac_mii.id, MII_BUS_ID_SIZE, "1");
+ 
+ 	res = mdiobus_register(&cpmac_mii);
+ 	if (res)