ioc3_mdio_read
word = ioc3_mdio_read(ip->mii.dev, i, MII_PHYSID1);
ip->mii.mdio_read = ioc3_mdio_read;
sw_physid1 = ioc3_mdio_read(dev, ip->mii.phy_id, MII_PHYSID1);
sw_physid2 = ioc3_mdio_read(dev, ip->mii.phy_id, MII_PHYSID2);