NGE_RXFILT_DATA
CSR_WRITE_4(sc, NGE_RXFILT_DATA, (eaddr[1] << 8) | eaddr[0]);
CSR_WRITE_4(sc, NGE_RXFILT_DATA, (eaddr[3] << 8) | eaddr[2]);
CSR_WRITE_4(sc, NGE_RXFILT_DATA, (eaddr[5] << 8) | eaddr[4]);
NGE_SETBIT(sc, NGE_RXFILT_DATA, (1 << bit));
CSR_WRITE_4(sc, NGE_RXFILT_DATA, 0);