diff --git a/arch/m68k/lib/cache.c b/arch/m68k/lib/cache.c
index 21daf3d..ace791b 100644
--- a/arch/m68k/lib/cache.c
+++ b/arch/m68k/lib/cache.c
@@ -132,3 +132,12 @@
 	__asm__ __volatile__("movec %0, %%cacr"::"r"(temp));
 #endif
 }
+
+__weak void invalidate_dcache_range(unsigned long start, unsigned long stop)
+{
+	/* An empty stub, real implementation should be in platform code */
+}
+__weak void flush_dcache_range(unsigned long start, unsigned long stop)
+{
+	/* An empty stub, real implementation should be in platform code */
+}