1 files changed, 5 insertions, 1 deletions

diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index db532181fbde..d6780b495241 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -25,9 +25,13 @@
  */
 .macro do_flush flushins:req optflushins optnopins label
 
+        R2 = -L1_CACHE_BYTES;
+
+        /* start = (start & -L1_CACHE_BYTES) */
+        R0 = R0 & R2;
+
         /* end = ((end - 1) & -L1_CACHE_BYTES) + L1_CACHE_BYTES; */
         R1 += -1;
-        R2 = -L1_CACHE_BYTES;
         R1 = R1 & R2;
         R1 += L1_CACHE_BYTES;