XL_STATUS
status = CSR_READ_2(sc, XL_STATUS);
while(((status = CSR_READ_2(sc, XL_STATUS)) & XL_INTRS) &&
if (!(CSR_READ_2(sc, XL_STATUS) & XL_STAT_CMDBUSY))
if (!(CSR_READ_2(sc, XL_STATUS) & XL_STAT_CMDBUSY))