AUE_CTL1
aue_csr_write_1(sc, AUE_CTL1, 0);
AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC);
if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC))