From 25b42557da28fb6786653b854ca8b13a86c99ec1 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Mon, 3 Aug 2009 21:32:31 +0000
Subject: add fixed PHY patches from 2.6.27, refresh patches

SVN-Revision: 17110
---
 .../ar7/patches-2.6.30/910-cpmac_fixed_phy.patch   | 90 ++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 target/linux/ar7/patches-2.6.30/910-cpmac_fixed_phy.patch

(limited to 'target/linux/ar7/patches-2.6.30/910-cpmac_fixed_phy.patch')

diff --git a/target/linux/ar7/patches-2.6.30/910-cpmac_fixed_phy.patch b/target/linux/ar7/patches-2.6.30/910-cpmac_fixed_phy.patch
new file mode 100644
index 0000000000..bd7345abf9
--- /dev/null
+++ b/target/linux/ar7/patches-2.6.30/910-cpmac_fixed_phy.patch
@@ -0,0 +1,90 @@
+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
++++ b/drivers/net/cpmac.c
+@@ -1096,7 +1096,7 @@ static int external_switch;
+ 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;
+@@ -1104,22 +1104,23 @@ static int __devinit cpmac_probe(struct 
+ 
+ 	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;
+ 	}
+ 
+ 	dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
+@@ -1160,8 +1161,10 @@ static int __devinit cpmac_probe(struct 
+ 	priv->msg_enable = netif_msg_init(debug_level, 0xff);
+ 	memcpy(dev->dev_addr, pdata->dev_addr, sizeof(dev->dev_addr));
+ 
+-	priv->phy = phy_connect(dev, dev_name(&cpmac_mii->phy_map[phy_id]->dev),
+-				&cpmac_adjust_link, 0, PHY_INTERFACE_MODE_MII);
++	snprintf(priv->phy_name, BUS_ID_SIZE, PHY_ID_FMT, mdio_bus_id, phy_id);
++
++	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",
+@@ -1235,11 +1238,11 @@ int __devinit cpmac_init(void)
+ 
+ 	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)) {
+@@ -1248,7 +1251,7 @@ int __devinit cpmac_init(void)
+ 	}
+ 
+ 	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)
-- 
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