diff --git a/sys/dev/pci/piixide.c b/sys/dev/pci/piixide.c
index 1f6a05d140db..772dce212ff7 100644
--- a/sys/dev/pci/piixide.c
+++ b/sys/dev/pci/piixide.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: piixide.c,v 1.23 2005/07/21 07:09:31 tron Exp $	*/
+/*	$NetBSD: piixide.c,v 1.24 2005/08/10 13:23:38 bouyer Exp $	*/
 
 /*
  * Copyright (c) 1999, 2000, 2001 Manuel Bouyer.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: piixide.c,v 1.23 2005/07/21 07:09:31 tron Exp $");
+__KERNEL_RCSID(0, "$NetBSD: piixide.c,v 1.24 2005/08/10 13:23:38 bouyer Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -246,6 +246,7 @@ piix_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
 	int channel;
 	u_int32_t idetim;
 	bus_size_t cmdsize, ctlsize;
+	pcireg_t interface = PCI_INTERFACE(pa->pa_class);
 
 	if (pciide_chipen(sc, pa) == 0)
 		return;
@@ -341,8 +342,7 @@ piix_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
 	for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
 	     channel++) {
 		cp = &sc->pciide_channels[channel];
-		/* PIIX is compat-only */
-		if (pciide_chansetup(sc, channel, 0) == 0)
+		if (pciide_chansetup(sc, channel, interface) == 0)
 			continue;
 		idetim = pci_conf_read(sc->sc_pc, sc->sc_tag, PIIX_IDETIM);
 		if ((PIIX_IDETIM_READ(idetim, channel) &
@@ -365,8 +365,8 @@ piix_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
 			    channel, idetim, interface);
 #endif
 		}
-		/* PIIX are compat-only pciide devices */
-		pciide_mapchan(pa, cp, 0, &cmdsize, &ctlsize, pciide_pci_intr);
+		pciide_mapchan(pa, cp, interface,
+		    &cmdsize, &ctlsize, pciide_pci_intr);
 	}
 
 	ATADEBUG_PRINT(("piix_setup_chip: idetim=0x%x",