diff --git a/include/asm-h8300/cache.h b/include/asm-h8300/cache.h
new file mode 100644
index 0000000..c635028
--- /dev/null
+++ b/include/asm-h8300/cache.h
@@ -0,0 +1,12 @@
+#ifndef __ARCH_H8300_CACHE_H
+#define __ARCH_H8300_CACHE_H
+
+/* bytes per L1 cache line */
+#define        L1_CACHE_BYTES  4
+
+/* m68k-elf-gcc  2.95.2 doesn't like these */
+
+#define __cacheline_aligned
+#define ____cacheline_aligned
+
+#endif