PMUINT2_REG_W
vrpmu_write(sc, PMUINT2_REG_W, PMUINT2_ALL);
intstat2 = vrpmu_read(sc, PMUINT2_REG_W);
reg = vrpmu_read(sc, PMUINT2_REG_W);
intstat2 = vrpmu_read(sc, PMUINT2_REG_W);
vrpmu_write(sc, PMUINT2_REG_W, intstat2);