diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index f51d0a4..659981f 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -127,3 +127,14 @@
 			__flush_wback_region((void *)addr, PAGE_SIZE);
 	}
 }
+
+void __init cpu_cache_init(void)
+{
+	if ((boot_cpu_data.family == CPU_FAMILY_SH4) ||
+	    (boot_cpu_data.family == CPU_FAMILY_SH4A) ||
+	    (boot_cpu_data.family == CPU_FAMILY_SH4AL_DSP)) {
+		extern void __weak sh4_cache_init(void);
+
+		sh4_cache_init();
+	}
+}