RGE_PHYOCP
RGE_WRITE_4(sc, RGE_PHYOCP, tmp);
if (!(RGE_READ_4(sc, RGE_PHYOCP) & RGE_PHYOCP_BUSY))
RGE_WRITE_4(sc, RGE_PHYOCP, val);
val = RGE_READ_4(sc, RGE_PHYOCP);