diff --git a/include/cache.h b/include/cache.h
index 262cae2a8ea..4478c81a440 100644
--- a/include/cache.h
+++ b/include/cache.h
@@ -168,6 +168,13 @@ static inline int z_impl_sys_icache_range(void *addr, size_t size, int op)
 	return -ENOTSUP;
 }
 
+#ifdef CONFIG_LIBMETAL
+static inline void sys_cache_flush(void *addr, size_t size)
+{
+	sys_dcache_range(addr, size, K_CACHE_WB);
+}
+#endif
+
 #define CPU DT_PATH(cpus, cpu_0)
 
 /**