MII_TG3_AUXCTL_SHDWSEL_PWRCTL
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_PWRCTL, val);
MII_TG3_AUXCTL_SHDWSEL_PWRCTL,
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_PWRCTL, 0);