BCE_EMAC_MODE
val = REG_RD(sc, BCE_EMAC_MODE);
REG_WR(sc, BCE_EMAC_MODE, val);
emac_mode_save = REG_RD(sc, BCE_EMAC_MODE) & emac_mode_mask;
val = REG_RD(sc, BCE_EMAC_MODE);
REG_WR(sc, BCE_EMAC_MODE, val);