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| author | Felix Fietkau <nbd@openwrt.org> | 2009-04-28 23:27:40 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2009-04-28 23:27:40 +0000 |
| commit | b9e8692aa1fa6f6bed7e6b1cd06258c0c26db56b (patch) | |
| tree | 298aa7c917bbd2dcba042c6a8443c68c73f4e155 /target/linux | |
| parent | 342a0e766022b18ef50178c9f23436180149d452 (diff) | |
| download | mtk-20170518-b9e8692aa1fa6f6bed7e6b1cd06258c0c26db56b.zip mtk-20170518-b9e8692aa1fa6f6bed7e6b1cd06258c0c26db56b.tar.gz mtk-20170518-b9e8692aa1fa6f6bed7e6b1cd06258c0c26db56b.tar.bz2 | |
atheros: add kernel workaround for bringing up eth1 on devices with a micrel switch (PHY is unconnected for ENET1, switch is not configurable through MDIO)
SVN-Revision: 15472
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/atheros/patches-2.6.28/220-enet_micrel_workaround.patch | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/atheros/patches-2.6.28/220-enet_micrel_workaround.patch b/target/linux/atheros/patches-2.6.28/220-enet_micrel_workaround.patch new file mode 100644 index 0000000..676b041 --- /dev/null +++ b/target/linux/atheros/patches-2.6.28/220-enet_micrel_workaround.patch @@ -0,0 +1,69 @@ +--- a/drivers/net/ar231x.c ++++ b/drivers/net/ar231x.c +@@ -148,6 +148,7 @@ static int ar231x_mdiobus_write(struct m + static int ar231x_mdiobus_reset(struct mii_bus *bus); + static int ar231x_mdiobus_probe (struct net_device *dev); + static void ar231x_adjust_link(struct net_device *dev); ++static bool no_phy = false; + + #ifndef ERR + #define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args) +@@ -279,6 +280,21 @@ int __init ar231x_probe(struct platform_ + + mdiobus_register(sp->mii_bus); + ++ /* Workaround for Micrel switch, which is only available on ++ * one PHY and cannot be configured through MDIO */ ++ if (!no_phy) { ++ u32 phy_id = 0; ++ get_phy_id(sp->mii_bus, 1, &phy_id); ++ if (phy_id == 0x00221450) ++ no_phy = true; ++ } ++ if (no_phy) { ++ sp->link = 1; ++ netif_carrier_on(dev); ++ return 0; ++ } ++ no_phy = true; ++ + if (ar231x_mdiobus_probe(dev) != 0) { + printk(KERN_ERR "%s: mdiobus_probe failed\n", dev->name); + rx_tasklet_cleanup(dev); +@@ -335,8 +351,10 @@ static int __exit ar231x_remove(struct p + rx_tasklet_cleanup(dev); + ar231x_init_cleanup(dev); + unregister_netdev(dev); +- mdiobus_unregister(sp->mii_bus); +- mdiobus_free(sp->mii_bus); ++ if (sp->mii_bus) { ++ mdiobus_unregister(sp->mii_bus); ++ mdiobus_free(sp->mii_bus); ++ } + kfree(dev); + return 0; + } +@@ -837,7 +855,12 @@ static int ar231x_rx_int(struct net_devi + dev->stats.rx_bytes += skb->len; + + /* pass the packet to upper layers */ +- sp->rx(skb); ++ if (sp->rx) { ++ sp->rx(skb); ++ } else { ++ skb->protocol = eth_type_trans(skb, skb->dev); ++ netif_rx(skb); ++ } + skb_new->dev = dev; + + /* 16 bit align */ +@@ -1124,6 +1147,9 @@ static int ar231x_ioctl(struct net_devic + struct ar231x_private *sp = netdev_priv(dev); + int ret; + ++ if (!sp->phy_dev) ++ return -ENODEV; ++ + switch (cmd) { + + case SIOCETHTOOL: |