target/linux/at91/patches-2.6.22/010-dm9161a-phyfix.patch

   1 Index: linux-2.6.22.19/drivers/net/arm/at91_ether.c
   2 ===================================================================
   3 --- linux-2.6.22.19.orig/drivers/net/arm/at91_ether.c
   4 +++ linux-2.6.22.19/drivers/net/arm/at91_ether.c
   5 @@ -146,6 +146,7 @@ static void update_linkspeed(struct net_
   6         struct at91_private *lp = netdev_priv(dev);
   7         unsigned int bmsr, bmcr, lpa, mac_cfg;
   8         unsigned int speed, duplex;
   9 +       unsigned long timeout = jiffies + HZ;
  10
  11         if (!mii_link_ok(&lp->mii)) {           /* no link */
  12                 netif_carrier_off(dev);
  13 @@ -158,8 +159,15 @@ static void update_linkspeed(struct net_
  14         read_phy(lp->phy_address, MII_BMSR, &bmsr);
  15         read_phy(lp->phy_address, MII_BMCR, &bmcr);
  16         if (bmcr & BMCR_ANENABLE) {                             /* AutoNegotiation is enabled */
  17 -               if (!(bmsr & BMSR_ANEGCOMPLETE))
  18 -                       return;                 /* Do nothing - another interrupt generated when negotiation complete */
  19 +               while (!(bmsr & BMSR_ANEGCOMPLETE)) {
  20 +                       if (time_after(jiffies, timeout)) {
  21 +                               printk("at91_ether: Auto-negotiate timeout\n");
  22 +                               return;
  23 +                       }
  24 +                       read_phy(lp->phy_address, MII_BMSR, &bmsr);
  25 +                       read_phy(lp->phy_address, MII_BMCR, &bmcr);
  26 +                       cpu_relax();
  27 +               }
  28
  29                 read_phy(lp->phy_address, MII_LPA, &lpa);
  30                 if ((lpa & LPA_100FULL) || (lpa & LPA_100HALF)) speed = SPEED_100;