diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index a7bbc2c..8192c87 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -46,9 +46,20 @@
 	  as 0x00400000 which was the default value before this became
 	  configurable.
 
+# Physical addressing modes
+
+config 29BIT
+	def_bool !32BIT
+	depends on SUPERH32
+
 config 32BIT
+	bool
+	default y if CPU_SH5
+
+config PMB
 	bool "Support 32-bit physical addressing through PMB"
 	depends on MMU && (CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785)
+	select 32BIT
 	default y
 	help
 	  If you say Y here, physical addressing will be extended to