MII_Addr
writew((phy_id<<8) + location, ioaddr + MII_Addr);
writew((phy_id<<8) + location, ioaddr + MII_Addr);
iowrite16((phy_id<<8) + location, ioaddr + MII_Addr);
iowrite16((phy_id<<8) + location, ioaddr + MII_Addr);