RGE_EPHYAR
RGE_WRITE_4(sc, RGE_EPHYAR, tmp);
if (!(RGE_READ_4(sc, RGE_EPHYAR) & RGE_EPHYAR_BUSY))
RGE_WRITE_4(sc, RGE_EPHYAR, val);
val = RGE_READ_4(sc, RGE_EPHYAR);