diff --git a/arch/blackfin/lib/cache.c b/arch/blackfin/lib/cache.c
index 0a321a4..e8a0cb5 100644
--- a/arch/blackfin/lib/cache.c
+++ b/arch/blackfin/lib/cache.c
@@ -111,3 +111,13 @@
 {
 	return bfin_read_DMEM_CONTROL() & ACACHE_BCACHE;
 }
+
+void invalidate_dcache_range(unsigned long start, unsigned long stop)
+{
+	blackfin_dcache_flush_invalidate_range((const void *)start, (const void *)stop);
+}
+
+void flush_dcache_range(unsigned long start, unsigned long stop)
+{
+	blackfin_dcache_flush_range((const void *)start, (const void *)stop);
+}