1 files changed, 21 insertions, 5 deletions

diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h
index 2666ff8ea952..9a5b2c572ebf 100644
--- a/arch/blackfin/include/asm/cacheflush.h
+++ b/arch/blackfin/include/asm/cacheflush.h
@@ -11,6 +11,9 @@
 
 #include <asm/blackfin.h>       /* for SSYNC() */
 #include <asm/sections.h>       /* for _ramend */
+#ifdef CONFIG_SMP
+#include <asm/smp.h>
+#endif
 
 extern void blackfin_icache_flush_range(unsigned long start_address, unsigned long end_address);
 extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned long end_address);
@@ -36,8 +39,13 @@ extern void blackfin_invalidate_entire_icache(void);
 
 static inline void flush_icache_range(unsigned start, unsigned end)
 {
-#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
-        blackfin_dcache_flush_range(start, end);
+#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK)
+        if (end <= physical_mem_end)
+                blackfin_dcache_flush_range(start, end);
+#endif
+#if defined(CONFIG_BFIN_L2_WRITEBACK)
+        if (start >= L2_START && end <= L2_START + L2_LENGTH)
+                blackfin_dcache_flush_range(start, end);
 #endif
 
         /* Make sure all write buffers in the data side of the core
@@ -49,9 +57,17 @@ static inline void flush_icache_range(unsigned start, unsigned end)
          * the pipeline.
          */
         SSYNC();
-#if defined(CONFIG_BFIN_ICACHE)
-        blackfin_icache_flush_range(start, end);
-        flush_icache_range_others(start, end);
+#if defined(CONFIG_BFIN_EXTMEM_ICACHEABLE)
+        if (end <= physical_mem_end) {
+                blackfin_icache_flush_range(start, end);
+                flush_icache_range_others(start, end);
+        }
+#endif
+#if defined(CONFIG_BFIN_L2_ICACHEABLE)
+        if (start >= L2_START && end <= L2_START + L2_LENGTH) {
+                blackfin_icache_flush_range(start, end);
+                flush_icache_range_others(start, end);
+        }
 #endif
 }