diff --git a/device/pci_device.c b/device/pci_device.c
index 1a3a849fbb..469009fa60 100644
--- a/device/pci_device.c
+++ b/device/pci_device.c
@@ -720,7 +720,7 @@ struct device_operations default_pci_ops_bus = {
  */
 static struct device_operations *get_pci_bridge_ops(struct device * dev)
 {
-	unsigned pos;
+	// unsigned pos;
 
 #if CONFIG_PCIX_PLUGIN_SUPPORT == 1
 	pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
diff --git a/util/dtc/flattree.c b/util/dtc/flattree.c
index b97a7711c3..366c6c6f19 100644
--- a/util/dtc/flattree.c
+++ b/util/dtc/flattree.c
@@ -1062,8 +1062,8 @@ void dt_to_C(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys)
 	 */
 	fprintf(f, "\tu64 reservemap[] = {\n");
 	for (re = bi->reservelist; re; re = re->next) {
-		fprintf(f, "\tu64\t0x%lx\n", re->re.address);
-		fprintf(f, "\tu64\t0x%lx\n", re->re.size);
+		fprintf(f, "\tu64\t0x%lx\n", (long unsigned int)re->re.address);
+		fprintf(f, "\tu64\t0x%lx\n", (long unsigned int)re->re.size);
 	}
 
 
diff --git a/util/lar/list.c b/util/lar/list.c
index 2ec617f471..ea9b2eb207 100644
--- a/util/lar/list.c
+++ b/util/lar/list.c
@@ -89,7 +89,7 @@ int list_lar(int argc, char *argv[])
 		printf("  %s ", walk + sizeof(struct lar_header));
 
 		printf("(%d bytes @0x%lx)\n", ntohl(header->len),
-		       (walk - inmap) + ntohl(header->offset));
+		       (unsigned long)(walk - inmap) + ntohl(header->offset));
 	}
 
 	munmap(inmap, statbuf.st_size);