DMA2_SR
(bus_space_read_1(iot, sc->sc_ioh2, DMA2_SR) & 0x0f) << 4;
tc = bus_space_read_1(iot, sc->sc_ioh2, DMA2_SR) &
ids->ids_dma2h, DMA2_SR) & 0x0f) << 4;