-/* Called every time the controller might need to be made
- * aware of new link state. The PHY code conveys this
- * information through variables in the ugeth structure, and this
- * function converts those variables into the appropriate
- * register values, and can bring down the device if needed.
- */
-
-static void adjust_link(struct net_device *dev)
-{
- struct ucc_geth_private *ugeth = netdev_priv(dev);
- struct ucc_geth __iomem *ug_regs;
- struct ucc_fast __iomem *uf_regs;
- struct phy_device *phydev = ugeth->phydev;
- unsigned long flags;
- int new_state = 0;
-
- ug_regs = ugeth->ug_regs;
- uf_regs = ugeth->uccf->uf_regs;
-
- spin_lock_irqsave(&ugeth->lock, flags);
-
- if (phydev->link) {
- u32 tempval = in_be32(&ug_regs->maccfg2);
- u32 upsmr = in_be32(&uf_regs->upsmr);
- /* Now we make sure that we can be in full duplex mode.
- * If not, we operate in half-duplex mode. */
- if (phydev->duplex != ugeth->oldduplex) {
- new_state = 1;
- if (!(phydev->duplex))
- tempval &= ~(MACCFG2_FDX);
- else
- tempval |= MACCFG2_FDX;
- ugeth->oldduplex = phydev->duplex;
- }
-
- if (phydev->speed != ugeth->oldspeed) {
- new_state = 1;
- switch (phydev->speed) {
- case SPEED_1000:
- tempval = ((tempval &
- ~(MACCFG2_INTERFACE_MODE_MASK)) |
- MACCFG2_INTERFACE_MODE_BYTE);
- break;
- case SPEED_100:
- case SPEED_10:
- tempval = ((tempval &
- ~(MACCFG2_INTERFACE_MODE_MASK)) |
- MACCFG2_INTERFACE_MODE_NIBBLE);
- /* if reduced mode, re-set UPSMR.R10M */
- if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
- (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
- (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
- (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
- (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
- (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
- if (phydev->speed == SPEED_10)
- upsmr |= UPSMR_R10M;
- else
- upsmr &= ~(UPSMR_R10M);
- }
- break;
- default:
- if (netif_msg_link(ugeth))
- ugeth_warn(
- "%s: Ack! Speed (%d) is not 10/100/1000!",
- dev->name, phydev->speed);
- break;
- }
- ugeth->oldspeed = phydev->speed;
- }
-
- out_be32(&ug_regs->maccfg2, tempval);
- out_be32(&uf_regs->upsmr, upsmr);
-
- if (!ugeth->oldlink) {
- new_state = 1;
- ugeth->oldlink = 1;
- }
- } else if (ugeth->oldlink) {
- new_state = 1;
- ugeth->oldlink = 0;
- ugeth->oldspeed = 0;
- ugeth->oldduplex = -1;
- }
-
- if (new_state && netif_msg_link(ugeth))
- phy_print_status(phydev);
-
- spin_unlock_irqrestore(&ugeth->lock, flags);
-}
-
-/* Configure the PHY for dev.
- * returns 0 if success. -1 if failure
- */
-static int init_phy(struct net_device *dev)
-{
- struct ucc_geth_private *priv = netdev_priv(dev);
- struct phy_device *phydev;
- char phy_id[BUS_ID_SIZE];
-
- priv->oldlink = 0;
- priv->oldspeed = 0;
- priv->oldduplex = -1;
-
- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, priv->ug_info->mdio_bus,
- priv->ug_info->phy_address);
-
- phydev = phy_connect(dev, phy_id, &adjust_link, 0, priv->phy_interface);
-
- if (IS_ERR(phydev)) {
- printk("%s: Could not attach to PHY\n", dev->name);
- return PTR_ERR(phydev);
- }
-
- phydev->supported &= (ADVERTISED_10baseT_Half |
- ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Half |
- ADVERTISED_100baseT_Full);
-
- if (priv->max_speed == SPEED_1000)
- phydev->supported |= ADVERTISED_1000baseT_Full;
-
- phydev->advertising = phydev->supported;
-
- priv->phydev = phydev;
-
- return 0;
-}
-
-
-