ENVY24_MT_PADDR
device_printf(sc->dev, "PADDR:0x%08x\n", envy24_rdmt(sc, ENVY24_MT_PADDR, 4));
envy24_wrmt(sc, ENVY24_MT_PADDR, sc->paddr, 4);
device_printf(sc->dev, "PADDR-->(0x%08x)\n", envy24_rdmt(sc, ENVY24_MT_PADDR, 4));