SF_RMAP_INTREG_BASE
CSR_WRITE_4(sc, SF_INDIRECTIO_ADDR, reg + SF_RMAP_INTREG_BASE);
val = CSR_READ_4(sc, (reg + SF_RMAP_INTREG_BASE));
CSR_WRITE_4(sc, SF_INDIRECTIO_ADDR, reg + SF_RMAP_INTREG_BASE);
CSR_WRITE_4(sc, (reg + SF_RMAP_INTREG_BASE), val);