diff --git a/include/asm-blackfin/blackfin_local.h b/include/asm-blackfin/blackfin_local.h
index 4e15834435..e17d8a2003 100644
--- a/include/asm-blackfin/blackfin_local.h
+++ b/include/asm-blackfin/blackfin_local.h
@@ -66,17 +66,11 @@ extern void blackfin_dcache_flush_range(const void *, const void *);
 extern void blackfin_icache_dcache_flush_range(const void *, const void *);
 extern void blackfin_dcache_flush_invalidate_range(const void *, const void *);
 
-/* Use DMA to move data from on chip to external memory.  While this is
- * required for only L1 instruction (it is not directly readable by the
- * core via data loads), it isn't a huge performance issue for other
- * regions (it's probably even faster than core load/stores).  However,
- * the DMA engine does not have access to the L1 scratchpad, and we
- * cannot use DMA inside of the MMR space.
+/* Use DMA to move data from on chip to external memory.  The L1 instruction
+ * regions can only be accessed via DMA, so if the address in question is in
+ * that region, make sure we attempt to DMA indirectly.
  */
-# define addr_bfin_on_chip_mem(addr) \
-	(((unsigned long)(addr) >= 0xef000000 && (unsigned long)addr < SYSMMR_BASE) && \
-	 !((unsigned long)(addr) >= L1_SRAM_SCRATCH && \
-	   (unsigned long)(addr) < L1_SRAM_SCRATCH_END))
+# define addr_bfin_on_chip_mem(addr) (((unsigned long)(addr) & 0xFFF00000) == 0xFFA00000)
 
 # include <asm/system.h>