diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 2af949a..6a1e79b 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -130,6 +130,9 @@
 config ARCH_NO_VIRT_TO_BUS
 	def_bool y
 
+config ARCH_HAS_DEFAULT_IDLE
+	def_bool y
+
 config IO_TRAPPED
 	bool
 
diff --git a/arch/sh/include/asm/system.h b/arch/sh/include/asm/system.h
index c9ec6af..a88895e 100644
--- a/arch/sh/include/asm/system.h
+++ b/arch/sh/include/asm/system.h
@@ -153,6 +153,7 @@
 extern struct dentry *sh_debugfs_root;
 
 void per_cpu_trap_init(void);
+void default_idle(void);
 
 asmlinkage void break_point_trap(void);
 
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c
index fe59ccf..f35ed03 100644
--- a/arch/sh/kernel/idle.c
+++ b/arch/sh/kernel/idle.c
@@ -38,7 +38,7 @@
 }
 __setup("hlt", hlt_setup);
 
-static void default_idle(void)
+void default_idle(void)
 {
 	if (!hlt_counter) {
 		clear_thread_flag(TIF_POLLING_NRFLAG);