CS4281_FCR0
DPRINTF(("FCR0 =0x%08x(expected 0x81000f00)\n", BA0READ4(sc, CS4281_FCR0)));
BA0WRITE4(sc, CS4281_FCR0, (BA0READ4(sc,CS4281_FCR0) & ~FCRn_FEN));
BA0WRITE4(sc, CS4281_FCR0, dat32);
BA0WRITE4(sc, CS4281_FCR0, dat32 | FCRn_FEN);