diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index cd8c585a6b02..8ec81b684cae 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -469,10 +469,6 @@ config SBUSCHAR
 	bool
 	default y
 
-config SUN_IO
-	bool
-	default y
-
 config SUN_LDOMS
 	bool "Sun Logical Domains support"
 	depends on SPARC64
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 56df59903eaa..fe7ed08390bb 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -1312,10 +1312,8 @@ void __init srmmu_paging_init(void)
 #endif
 	poke_srmmu();
 
-#ifdef CONFIG_SUN_IO
 	srmmu_allocate_ptable_skeleton(sparc_iomap.start, IOBASE_END);
 	srmmu_allocate_ptable_skeleton(DVMA_VADDR, DVMA_END);
-#endif
 
 	srmmu_allocate_ptable_skeleton(
 		__fix_to_virt(__end_of_fixed_addresses - 1), FIXADDR_TOP);