AUE_PHY_CTL
aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ);
if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE);
if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)