1 files changed, 28 insertions, 4 deletions

diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 8e4f6dca8997..e5797f1c1db7 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -257,7 +257,7 @@ ENTRY(xsc3_flush_kern_dcache_area)
  *      - start  - virtual start address
  *      - end    - virtual end address
  */
-ENTRY(xsc3_dma_inv_range)
+xsc3_dma_inv_range:
         tst     r0, #CACHELINESIZE - 1
         bic     r0, r0, #CACHELINESIZE - 1
         mcrne   p15, 0, r0, c7, c10, 1          @ clean L1 D line
@@ -278,7 +278,7 @@ ENTRY(xsc3_dma_inv_range)
  *      - start  - virtual start address
  *      - end    - virtual end address
  */
-ENTRY(xsc3_dma_clean_range)
+xsc3_dma_clean_range:
         bic     r0, r0, #CACHELINESIZE - 1
 1:      mcr     p15, 0, r0, c7, c10, 1          @ clean L1 D line
         add     r0, r0, #CACHELINESIZE
@@ -304,6 +304,30 @@ ENTRY(xsc3_dma_flush_range)
         mcr     p15, 0, r0, c7, c10, 4          @ data write barrier
         mov     pc, lr
 
+/*
+ *      dma_map_area(start, size, dir)
+ *      - start - kernel virtual start address
+ *      - size  - size of region
+ *      - dir   - DMA direction
+ */
+ENTRY(xsc3_dma_map_area)
+        add     r1, r1, r0
+        cmp     r2, #DMA_TO_DEVICE
+        beq     xsc3_dma_clean_range
+        bcs     xsc3_dma_inv_range
+        b       xsc3_dma_flush_range
+ENDPROC(xsc3_dma_map_area)
+
+/*
+ *      dma_unmap_area(start, size, dir)
+ *      - start - kernel virtual start address
+ *      - size  - size of region
+ *      - dir   - DMA direction
+ */
+ENTRY(xsc3_dma_unmap_area)
+        mov     pc, lr
+ENDPROC(xsc3_dma_unmap_area)
+
 ENTRY(xsc3_cache_fns)
         .long   xsc3_flush_kern_cache_all
         .long   xsc3_flush_user_cache_all
@@ -311,8 +335,8 @@ ENTRY(xsc3_cache_fns)
         .long   xsc3_coherent_kern_range
         .long   xsc3_coherent_user_range
         .long   xsc3_flush_kern_dcache_area
-        .long   xsc3_dma_inv_range
-        .long   xsc3_dma_clean_range
+        .long   xsc3_dma_map_area
+        .long   xsc3_dma_unmap_area
         .long   xsc3_dma_flush_range
 
 ENTRY(cpu_xsc3_dcache_clean_area)