target/linux/ixp4xx/patches-2.6.26/202-npe_driver_switch_support.patch

   1 --- a/drivers/net/arm/ixp4xx_eth.c
   2 +++ b/drivers/net/arm/ixp4xx_eth.c
   3 @@ -165,14 +165,15 @@
   4         struct net_device *netdev;
   5         struct napi_struct napi;
   6         struct net_device_stats stat;
   7 -       struct mii_if_info mii;
   8 +       struct mii_if_info mii[IXP4XX_ETH_PHY_MAX_ADDR];
   9         struct delayed_work mdio_thread;
  10         struct eth_plat_info *plat;
  11         buffer_t *rx_buff_tab[RX_DESCS], *tx_buff_tab[TX_DESCS];
  12         struct desc *desc_tab;  /* coherent */
  13         u32 desc_tab_phys;
  14         int id;                 /* logical port ID */
  15 -       u16 mii_bmcr;
  16 +       u16 mii_bmcr[IXP4XX_ETH_PHY_MAX_ADDR];
  17 +       int phy_count;
  18  };
  19
  20  /* NPE message structure */
  21 @@ -316,12 +317,13 @@
  22         spin_unlock_irqrestore(&mdio_lock, flags);
  23  }
  24
  25 -static void phy_reset(struct net_device *dev, int phy_id)
  26 +static void phy_reset(struct net_device *dev, int idx)
  27  {
  28         struct port *port = netdev_priv(dev);
  29 +       int phy_id = port->mii[idx].phy_id;
  30         int cycles = 0;
  31
  32 -       mdio_write(dev, phy_id, MII_BMCR, port->mii_bmcr | BMCR_RESET);
  33 +       mdio_write(dev, phy_id, MII_BMCR, port->mii_bmcr[idx] | BMCR_RESET);
  34
  35         while (cycles < MAX_MII_RESET_RETRIES) {
  36                 if (!(mdio_read(dev, phy_id, MII_BMCR) & BMCR_RESET)) {
  37 @@ -335,12 +337,12 @@
  38                 cycles++;
  39         }
  40
  41 -       printk(KERN_ERR "%s: MII reset failed\n", dev->name);
  42 +       printk(KERN_ERR "%s: MII reset failed on PHY%2d\n", dev->name, phy_id);
  43  }
  44
  45 -static void eth_set_duplex(struct port *port)
  46 +static void eth_set_duplex(struct port *port, int full_duplex)
  47  {
  48 -       if (port->mii.full_duplex)
  49 +       if (full_duplex)
  50                 __raw_writel(DEFAULT_TX_CNTRL0 & ~TX_CNTRL0_HALFDUPLEX,
  51                              &port->regs->tx_control[0]);
  52         else
  53 @@ -348,7 +350,7 @@
  54                              &port->regs->tx_control[0]);
  55  }
  56
  57 -
  58 +#if 0
  59  static void phy_check_media(struct port *port, int init)
  60  {
  61         if (mii_check_media(&port->mii, 1, init))
  62 @@ -367,7 +369,63 @@
  63                 }
  64         }
  65  }
  66 +#else
  67 +static void phy_update_link(struct net_device *dev, int link)
  68 +{
  69 +       int prev_link = netif_carrier_ok(dev);
  70 +
  71 +       if (!prev_link && link) {
  72 +               printk(KERN_INFO "%s: link up\n", dev->name);
  73 +               netif_carrier_on(dev);
  74 +       } else if (prev_link && !link) {
  75 +               printk(KERN_INFO "%s: link down\n", dev->name);
  76 +               netif_carrier_off(dev);
  77 +       }
  78 +}
  79 +
  80 +static void phy_check_media(struct port *port, int init)
  81 +{
  82 +       struct net_device *dev = port->netdev;
  83 +
  84 +       if (port->phy_count == 1) {
  85 +               struct mii_if_info *mii = &port->mii[0];
  86 +
  87 +               if (mii_check_media(mii, 1, init))
  88 +                       eth_set_duplex(port, mii->full_duplex);
  89 +
  90 +               if (mii->force_media) /* mii_check_media() doesn't work */
  91 +                       phy_update_link(dev, mii_link_ok(mii));
  92 +       } else {
  93 +               int cur_link = 0;
  94 +               int i;
  95 +
  96 +               if (init)
  97 +                       eth_set_duplex(port, 1);
  98 +
  99 +               for (i = 0; i < port->phy_count; i++)
 100 +                       cur_link |= mii_link_ok(&port->mii[i]);
 101 +
 102 +               phy_update_link(dev, cur_link);
 103 +       }
 104 +}
 105 +#endif
 106 +
 107 +static void phy_power_down(struct net_device *dev, int idx)
 108 +{
 109 +       struct port *port = netdev_priv(dev);
 110 +       int phy_id = port->mii[idx].phy_id;
 111 +
 112 +       port->mii_bmcr[idx] = mdio_read(dev, phy_id, MII_BMCR) &
 113 +                                               ~(BMCR_RESET | BMCR_PDOWN);
 114 +       mdio_write(dev, phy_id, MII_BMCR, port->mii_bmcr[idx] | BMCR_PDOWN);
 115 +}
 116 +
 117 +static void phy_power_up(struct net_device *dev, int idx)
 118 +{
 119 +       struct port *port = netdev_priv(dev);
 120
 121 +       mdio_write(dev, port->mii[idx].phy_id, MII_BMCR, port->mii_bmcr[idx]);
 122 +}
 123
 124  static void mdio_thread(struct work_struct *work)
 125  {
 126 @@ -792,9 +850,12 @@
 127
 128         if (!netif_running(dev))
 129                 return -EINVAL;
 130 -       err = generic_mii_ioctl(&port->mii, if_mii(req), cmd, &duplex_chg);
 131 +       if (port->phy_count != 1)
 132 +               return -EOPNOTSUPP;
 133 +
 134 +       err = generic_mii_ioctl(&port->mii[0], if_mii(req), cmd, &duplex_chg);
 135         if (duplex_chg)
 136 -               eth_set_duplex(port);
 137 +               eth_set_duplex(port, port->mii[0].full_duplex);
 138         return err;
 139  }
 140
 141 @@ -947,7 +1008,8 @@
 142                 }
 143         }
 144
 145 -       mdio_write(dev, port->plat->phy, MII_BMCR, port->mii_bmcr);
 146 +       for (i = 0; i < port->phy_count; i++)
 147 +               phy_power_up(dev, i);
 148
 149         memset(&msg, 0, sizeof(msg));
 150         msg.cmd = NPE_VLAN_SETRXQOSENTRY;
 151 @@ -1107,10 +1169,8 @@
 152                 printk(KERN_CRIT "%s: unable to disable loopback\n",
 153                        dev->name);
 154
 155 -       port->mii_bmcr = mdio_read(dev, port->plat->phy, MII_BMCR) &
 156 -               ~(BMCR_RESET | BMCR_PDOWN); /* may have been altered */
 157 -       mdio_write(dev, port->plat->phy, MII_BMCR,
 158 -                  port->mii_bmcr | BMCR_PDOWN);
 159 +       for (i = 0; i < port->phy_count; i++)
 160 +               phy_power_down(dev, i);
 161
 162         if (!ports_open)
 163                 qmgr_disable_irq(TXDONE_QUEUE);
 164 @@ -1120,6 +1180,42 @@
 165         return 0;
 166  }
 167
 168 +static void eth_add_phy(struct net_device *dev, int phy_id)
 169 +{
 170 +       struct port *port = netdev_priv(dev);
 171 +       int i;
 172 +
 173 +       i = port->phy_count++;
 174 +
 175 +       port->mii[i].dev = dev;
 176 +       port->mii[i].mdio_read = mdio_read;
 177 +       port->mii[i].mdio_write = mdio_write;
 178 +       port->mii[i].phy_id = phy_id;
 179 +       port->mii[i].phy_id_mask = 0x1F;
 180 +       port->mii[i].reg_num_mask = 0x1F;
 181 +
 182 +       printk(KERN_INFO "%s: MII PHY %i on %s\n", dev->name, phy_id,
 183 +              npe_name(port->npe));
 184 +
 185 +       phy_reset(dev, i);
 186 +       phy_power_down(dev, i);
 187 +}
 188 +
 189 +static void eth_init_mii(struct net_device *dev)
 190 +{
 191 +       struct port *port = netdev_priv(dev);
 192 +
 193 +       if (port->plat->phy < IXP4XX_ETH_PHY_MAX_ADDR) {
 194 +               eth_add_phy(dev, port->plat->phy);
 195 +       } else {
 196 +               int i;
 197 +               for (i = 0; i < IXP4XX_ETH_PHY_MAX_ADDR; i++)
 198 +                       if (port->plat->phy_mask & (1U << i))
 199 +                               eth_add_phy(dev, i);
 200 +       }
 201 +
 202 +}
 203 +
 204  static int __devinit eth_init_one(struct platform_device *pdev)
 205  {
 206         struct port *port;
 207 @@ -1192,20 +1288,7 @@
 208         __raw_writel(DEFAULT_CORE_CNTRL, &port->regs->core_control);
 209         udelay(50);
 210
 211 -       port->mii.dev = dev;
 212 -       port->mii.mdio_read = mdio_read;
 213 -       port->mii.mdio_write = mdio_write;
 214 -       port->mii.phy_id = plat->phy;
 215 -       port->mii.phy_id_mask = 0x1F;
 216 -       port->mii.reg_num_mask = 0x1F;
 217 -
 218 -       printk(KERN_INFO "%s: MII PHY %i on %s\n", dev->name, plat->phy,
 219 -              npe_name(port->npe));
 220 -
 221 -       phy_reset(dev, plat->phy);
 222 -       port->mii_bmcr = mdio_read(dev, plat->phy, MII_BMCR) &
 223 -               ~(BMCR_RESET | BMCR_PDOWN);
 224 -       mdio_write(dev, plat->phy, MII_BMCR, port->mii_bmcr | BMCR_PDOWN);
 225 +       eth_init_mii(dev);
 226
 227         INIT_DELAYED_WORK(&port->mdio_thread, mdio_thread);
 228         return 0;
 229 --- a/include/asm-arm/arch-ixp4xx/platform.h
 230 +++ b/include/asm-arm/arch-ixp4xx/platform.h
 231 @@ -95,12 +95,15 @@
 232  #define IXP4XX_ETH_NPEB                0x10
 233  #define IXP4XX_ETH_NPEC                0x20
 234
 235 +#define IXP4XX_ETH_PHY_MAX_ADDR        32
 236 +
 237  /* Information about built-in Ethernet MAC interfaces */
 238  struct eth_plat_info {
 239         u8 phy;         /* MII PHY ID, 0 - 31 */
 240         u8 rxq;         /* configurable, currently 0 - 31 only */
 241         u8 txreadyq;
 242         u8 hwaddr[6];
 243 +       u32 phy_mask;
 244  };
 245
 246  /* Information about built-in HSS (synchronous serial) interfaces */