target/linux/ixp4xx/patches-4.9/206-npe_driver_add_update_link_function.patch

   1 --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
   2 +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
   3 @@ -171,12 +171,13 @@ struct port {
   4         struct npe *npe;
   5         struct net_device *netdev;
   6         struct napi_struct napi;
   7 +       struct phy_device *phydev;
   8         struct eth_plat_info *plat;
   9         buffer_t *rx_buff_tab[RX_DESCS], *tx_buff_tab[TX_DESCS];
  10         struct desc *desc_tab;  /* coherent */
  11         u32 desc_tab_phys;
  12         int id;                 /* logical port ID */
  13 -       int speed, duplex;
  14 +       int link, speed, duplex;
  15         u8 firmware[4];
  16         int hwts_tx_en;
  17         int hwts_rx_en;
  18 @@ -558,36 +559,46 @@ static void ixp4xx_mdio_remove(void)
  19  }
  20
  21
  22 -static void ixp4xx_adjust_link(struct net_device *dev)
  23 +static void ixp4xx_update_link(struct net_device *dev)
  24  {
  25         struct port *port = netdev_priv(dev);
  26 -       struct phy_device *phydev = dev->phydev;
  27 -
  28 -       if (!phydev->link) {
  29 -               if (port->speed) {
  30 -                       port->speed = 0;
  31 -                       printk(KERN_INFO "%s: link down\n", dev->name);
  32 -               }
  33 -               return;
  34 -       }
  35 -
  36 -       if (port->speed == phydev->speed && port->duplex == phydev->duplex)
  37 -               return;
  38 -
  39 -       port->speed = phydev->speed;
  40 -       port->duplex = phydev->duplex;
  41
  42 -       if (port->duplex)
  43 +       if (port->duplex == DUPLEX_FULL)
  44                 __raw_writel(DEFAULT_TX_CNTRL0 & ~TX_CNTRL0_HALFDUPLEX,
  45                              &port->regs->tx_control[0]);
  46         else
  47                 __raw_writel(DEFAULT_TX_CNTRL0 | TX_CNTRL0_HALFDUPLEX,
  48                              &port->regs->tx_control[0]);
  49
  50 +       netif_carrier_on(dev);
  51         printk(KERN_INFO "%s: link up, speed %u Mb/s, %s duplex\n",
  52                dev->name, port->speed, port->duplex ? "full" : "half");
  53  }
  54
  55 +static void ixp4xx_adjust_link(struct net_device *dev)
  56 +{
  57 +       struct port *port = netdev_priv(dev);
  58 +       struct phy_device *phydev = port->phydev;
  59 +       int status_change = 0;
  60 +
  61 +       if (phydev->link) {
  62 +               if (port->duplex != phydev->duplex
  63 +                   || port->speed != phydev->speed) {
  64 +                       status_change = 1;
  65 +               }
  66 +       }
  67 +
  68 +       if (phydev->link != port->link)
  69 +               status_change = 1;
  70 +
  71 +       port->link = phydev->link;
  72 +       port->speed = phydev->speed;
  73 +       port->duplex = phydev->duplex;
  74 +
  75 +       if (status_change)
  76 +               ixp4xx_update_link(dev);
  77 +}
  78 +
  79  static int ixp4xx_phy_connect(struct net_device *dev)
  80  {
  81         struct port *port = netdev_priv(dev);
  82 @@ -623,7 +634,6 @@ static void ixp4xx_phy_start(struct net_
  83  {
  84         struct port *port = netdev_priv(dev);
  85
  86 -       port->speed = 0;        /* force "link up" message */
  87         phy_start(port->phydev);
  88  }
  89
  90 @@ -1499,6 +1509,10 @@ static int eth_init_one(struct platform_
  91         if ((err = register_netdev(dev)))
  92                 goto err_phy_dis;
  93
  94 +       port->link = 0;
  95 +       port->speed = 0;
  96 +       port->duplex = -1;
  97 +
  98         printk(KERN_INFO "%s: MII PHY %i on %s\n", dev->name, plat->phy,
  99                npe_name(port->npe));
 100