From e75946542027a8c0fc5823c71a1319861a120bef Mon Sep 17 00:00:00 2001 From: Hamish Guthrie Date: Mon, 4 Jun 2007 17:46:46 +0000 Subject: [PATCH] Fixed at91 ethernet driver for dm9161a PHY interrupt issue SVN-Revision: 7493 --- .../at91-2.6/patches/010-dm9161a-phyfix.patch | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 target/linux/at91-2.6/patches/010-dm9161a-phyfix.patch diff --git a/target/linux/at91-2.6/patches/010-dm9161a-phyfix.patch b/target/linux/at91-2.6/patches/010-dm9161a-phyfix.patch new file mode 100644 index 0000000000..9ad8c42530 --- /dev/null +++ b/target/linux/at91-2.6/patches/010-dm9161a-phyfix.patch @@ -0,0 +1,28 @@ +--- linux-2.6.21.1/drivers/net/arm/at91_ether.c.old 2007-06-04 18:15:49.000000000 +0200 ++++ linux-2.6.21.1/drivers/net/arm/at91_ether.c 2007-06-04 18:10:36.000000000 +0200 +@@ -146,6 +146,7 @@ + struct at91_private *lp = netdev_priv(dev); + unsigned int bmsr, bmcr, lpa, mac_cfg; + unsigned int speed, duplex; ++ unsigned long timeout = jiffies + HZ; + + if (!mii_link_ok(&lp->mii)) { /* no link */ + netif_carrier_off(dev); +@@ -158,8 +159,15 @@ + read_phy(lp->phy_address, MII_BMSR, &bmsr); + read_phy(lp->phy_address, MII_BMCR, &bmcr); + if (bmcr & BMCR_ANENABLE) { /* AutoNegotiation is enabled */ +- if (!(bmsr & BMSR_ANEGCOMPLETE)) +- return; /* Do nothing - another interrupt generated when negotiation complete */ ++ while (!(bmsr & BMSR_ANEGCOMPLETE)) { ++ if (time_after(jiffies, timeout)) { ++ printk("at91_ether: Auto-negotiate timeout\n"); ++ return; ++ } ++ read_phy(lp->phy_address, MII_BMSR, &bmsr); ++ read_phy(lp->phy_address, MII_BMCR, &bmcr); ++ cpu_relax(); ++ } + + read_phy(lp->phy_address, MII_LPA, &lpa); + if ((lpa & LPA_100FULL) || (lpa & LPA_100HALF)) speed = SPEED_100; -- 2.25.1