LCDC_LCDCON1
bus_space_write_4(iot, ioh, LCDC_LCDCON1, reg);
lcdcon1 = bus_space_read_4(iot, ioh, LCDC_LCDCON1);
bus_space_write_4(iot, ioh, LCDC_LCDCON1, lcdcon1);
bus_space_write_4(iot, ioh, LCDC_LCDCON1, lcdcon1 | LCDCON1_ENVID);
bus_space_write_4(sc->iot, sc->ioh, LCDC_LCDCON1,
bus_space_read_4(sc->iot, sc->ioh, LCDC_LCDCON1));
for(i=LCDC_LCDCON1; i <= LCDC_LCDSADDR3; i+=4) {