mcs7830_write_phy
ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE);
ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000);
ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE);
ret = mcs7830_write_phy(dev, MII_BMCR,
mcs7830_write_phy(dev, location, val);