target/linux/ixp4xx/patches-2.6.36/206-npe_driver_add_update_link_function.patch

   1 --- a/drivers/net/arm/ixp4xx_eth.c
   2 +++ b/drivers/net/arm/ixp4xx_eth.c
   3 @@ -169,7 +169,7 @@ struct port {
   4         struct desc *desc_tab;  /* coherent */
   5         u32 desc_tab_phys;
   6         int id;                 /* logical port ID */
   7 -       int speed, duplex;
   8 +       int link, speed, duplex;
   9         u8 firmware[4];
  10  };
  11
  12 @@ -366,37 +366,52 @@ static void ixp4xx_mdio_remove(void)
  13         mdiobus_free(mdio_bus);
  14  }
  15
  16 -
  17 -static void ixp4xx_adjust_link(struct net_device *dev)
  18 +static void ixp4xx_update_link(struct net_device *dev)
  19  {
  20         struct port *port = netdev_priv(dev);
  21 -       struct phy_device *phydev = port->phydev;
  22
  23 -       if (!phydev->link) {
  24 -               if (port->speed) {
  25 -                       port->speed = 0;
  26 -                       printk(KERN_INFO "%s: link down\n", dev->name);
  27 -               }
  28 +       if (!port->link) {
  29 +               netif_carrier_off(dev);
  30 +               printk(KERN_INFO "%s: link down\n", dev->name);
  31                 return;
  32         }
  33
  34 -       if (port->speed == phydev->speed && port->duplex == phydev->duplex)
  35 -               return;
  36 -
  37 -       port->speed = phydev->speed;
  38 -       port->duplex = phydev->duplex;
  39 -
  40 -       if (port->duplex)
  41 +       if (port->duplex == DUPLEX_FULL)
  42                 __raw_writel(DEFAULT_TX_CNTRL0 & ~TX_CNTRL0_HALFDUPLEX,
  43                              &port->regs->tx_control[0]);
  44         else
  45                 __raw_writel(DEFAULT_TX_CNTRL0 | TX_CNTRL0_HALFDUPLEX,
  46                              &port->regs->tx_control[0]);
  47
  48 +       netif_carrier_on(dev);
  49         printk(KERN_INFO "%s: link up, speed %u Mb/s, %s duplex\n",
  50                dev->name, port->speed, port->duplex ? "full" : "half");
  51  }
  52
  53 +static void ixp4xx_adjust_link(struct net_device *dev)
  54 +{
  55 +       struct port *port = netdev_priv(dev);
  56 +       struct phy_device *phydev = port->phydev;
  57 +       int status_change = 0;
  58 +
  59 +       if (phydev->link) {
  60 +               if (port->duplex != phydev->duplex
  61 +                   || port->speed != phydev->speed) {
  62 +                       status_change = 1;
  63 +               }
  64 +       }
  65 +
  66 +       if (phydev->link != port->link)
  67 +               status_change = 1;
  68 +
  69 +       port->link = phydev->link;
  70 +       port->speed = phydev->speed;
  71 +       port->duplex = phydev->duplex;
  72 +
  73 +       if (status_change)
  74 +               ixp4xx_update_link(dev);
  75 +}
  76 +
  77  static int ixp4xx_phy_connect(struct net_device *dev)
  78  {
  79         struct port *port = netdev_priv(dev);
  80 @@ -431,7 +446,6 @@ static void ixp4xx_phy_start(struct net_
  81  {
  82         struct port *port = netdev_priv(dev);
  83
  84 -       port->speed = 0;        /* force "link up" message */
  85         phy_start(port->phydev);
  86  }
  87
  88 @@ -1263,6 +1277,10 @@ static int __devinit eth_init_one(struct
  89         if ((err = register_netdev(dev)))
  90                 goto err_phy_dis;
  91
  92 +       port->link = 0;
  93 +       port->speed = 0;
  94 +       port->duplex = -1;
  95 +
  96         printk(KERN_INFO "%s: MII PHY %i on %s\n", dev->name, plat->phy,
  97                npe_name(port->npe));
  98