EMAC_INT_CTL
EMAC_WRITE_REG(sc, EMAC_INT_CTL, 0);
reg_val = EMAC_READ_REG(sc, EMAC_INT_CTL);
EMAC_WRITE_REG(sc, EMAC_INT_CTL, reg_val);
EMAC_WRITE_REG(sc, EMAC_INT_CTL, 0);
EMAC_WRITE_REG(sc, EMAC_INT_CTL, 0);
reg_val = EMAC_READ_REG(sc, EMAC_INT_CTL);
EMAC_WRITE_REG(sc, EMAC_INT_CTL, reg_val);