amd8111e_mdio_read
lp->mii_if.mdio_read = amd8111e_mdio_read;
advert = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_ADVERTISE);
bmcr = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_BMCR);