diff --git a/arch/sh/cpu/sh4/cache.c b/arch/sh/cpu/sh4/cache.c
index 5049090..2f49ce8 100644
--- a/arch/sh/cpu/sh4/cache.c
+++ b/arch/sh/cpu/sh4/cache.c
@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <cpu_func.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/system.h>