diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index d832e10..40ae7b6 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -427,10 +427,10 @@
 
 	/* MacIO itself has a different reg, we use it's PCI base */
 	if (np == chip->of_node) {
-		sprintf(dev->ofdev.dev.bus_id, "%1d.%016llx:%.*s",
+		sprintf(dev->ofdev.dev.bus_id, "%1d.%08x:%.*s",
 			chip->lbus.index,
 #ifdef CONFIG_PCI
-			(unsigned long long)pci_resource_start(chip->lbus.pdev, 0),
+			(unsigned int)pci_resource_start(chip->lbus.pdev, 0),
 #else
 			0, /* NuBus may want to do something better here */
 #endif