Index: kernel/arch/sparc64/include/types.h
===================================================================
--- kernel/arch/sparc64/include/types.h	(revision c484842fc130355cdd5f70ff184d677a38607c4a)
+++ kernel/arch/sparc64/include/types.h	(revision 4a62ec952c0abab08fd690a77afe56cac4aee95f)
@@ -55,8 +55,8 @@
 typedef uint64_t ipl_t;
 
-typedef uint64_t ioport_t;
-
 typedef uint64_t unative_t;
 typedef int64_t native_t;
+
+typedef uintptr_t ioport_t;
 
 /**< Formats for uintptr_t, size_t, count_t and index_t */