BMCR_RESET
tg3_writephy(tp, MII_BMCR, BMCR_RESET);
phy_control = BMCR_RESET;
if ((phy_control & BMCR_RESET) == 0) {
mdio_set_bit(cphy, MII_BMCR, BMCR_RESET);
ctl &= BMCR_RESET;