PHY_BMCR_DUPLEX
if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX)
media |= PHY_BMCR_DUPLEX;
media &= ~PHY_BMCR_DUPLEX;
media &= ~PHY_BMCR_DUPLEX;
media |= PHY_BMCR_DUPLEX;
media &= ~PHY_BMCR_DUPLEX;
media |= PHY_BMCR_DUPLEX;
media &= ~PHY_BMCR_DUPLEX;
PHY_BMCR_DUPLEX | PHY_BMCR_LOOPBK);
bmcr &= ~PHY_BMCR_DUPLEX;
bmcr &= ~PHY_BMCR_DUPLEX;
bmcr |= PHY_BMCR_DUPLEX;
bmcr &= ~PHY_BMCR_DUPLEX;
if (bmcr & PHY_BMCR_DUPLEX)