Index: sys/powerpc/powernv/opal_pci.c
===================================================================
--- sys/powerpc/powernv/opal_pci.c	(revision 333254)
+++ sys/powerpc/powernv/opal_pci.c	(working copy)
@@ -278,16 +278,16 @@
 	if (OF_getencprop(ofw_bus_get_node(dev), "ibm,opal-m64-window",
 	    m64window, sizeof(m64window)) == sizeof(m64window)) {
 		opal_call(OPAL_PCI_PHB_MMIO_ENABLE, sc->phb_id,
-		    OPAL_M64_WINDOW_TYPE, 0, 0);
+		    OPAL_M64_WINDOW_TYPE, 1, 0);
 		opal_call(OPAL_PCI_SET_PHB_MEM_WINDOW, sc->phb_id,
-		    OPAL_M64_WINDOW_TYPE, 0 /* index */, 
+		    OPAL_M64_WINDOW_TYPE, 1 /* index */, 
 		    ((uint64_t)m64window[2] << 32) | m64window[3], 0,
 		    ((uint64_t)m64window[4] << 32) | m64window[5]);
 		opal_call(OPAL_PCI_MAP_PE_MMIO_WINDOW, sc->phb_id,
 		    OPAL_PCI_DEFAULT_PE, OPAL_M64_WINDOW_TYPE,
-		    0 /* index */, 0);
+		    1 /* index */, 0);
 		opal_call(OPAL_PCI_PHB_MMIO_ENABLE, sc->phb_id,
-		    OPAL_M64_WINDOW_TYPE, 0, OPAL_ENABLE_M64_NON_SPLIT);
+		    OPAL_M64_WINDOW_TYPE, 1, OPAL_ENABLE_M64_NON_SPLIT);
 	}
 
 	/*