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Diffstat (limited to 'target/linux/ar7/patches-2.6.30/910-cpmac_fixed_phy.patch')
-rw-r--r--target/linux/ar7/patches-2.6.30/910-cpmac_fixed_phy.patch90
1 files changed, 90 insertions, 0 deletions
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)