MII_GTCR
mii_write(l, l->phy, MII_GTCR, gtcr);
mii_write(l, l->phy, MII_GTCR, GANA_1000TFDX | GANA_1000THDX);
mii_write(l, l->phy, MII_GTCR, gtcr);
mii_write(l, l->phy, MII_GTCR, gtcr);
PHY_WRITE(sc, MII_GTCR, 0);
PHY_WRITE(sc, MII_GTCR, gig);
PHY_WRITE(sc, MII_GTCR,
PHY_WRITE(sc, MII_GTCR, gig | GTCR_MAN_MS);
#define MII_100T2CR MII_GTCR /* alias */
(reg == MII_GTCR || reg == BRGPHY_MII_AUXCTL))