diff --git a/drivers/firmware/efi/arm-init.c b/drivers/firmware/efi/arm-init.c
index 5d6945b761dcf2727c673d09f6fcd3172bef22e7..ca708fb18c1dfc859487a9f19c4e7352e8b726ac 100644
--- a/drivers/firmware/efi/arm-init.c
+++ b/drivers/firmware/efi/arm-init.c
@@ -149,7 +149,7 @@ static __init void reserve_regions(void)
 	 * uses its own memory map instead.
 	 */
 	memblock_dump_all();
-	memblock_remove(0, ULLONG_MAX);
+	memblock_remove(0, (phys_addr_t)ULLONG_MAX);
 
 	for_each_efi_memory_desc(&memmap, md) {
 		paddr = md->phys_addr;