MVNETA_PMACC2
ctl2 = MVNETA_READ(sc, MVNETA_PMACC2);
MVNETA_WRITE(sc, MVNETA_PMACC2, ctl2);
while (MVNETA_READ(sc, MVNETA_PMACC2) & MVNETA_PMACC2_PORTMACRESET)