1 files changed, 42 insertions, 0 deletions

diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index dbc39383e66a..97e1d784f152 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -367,6 +367,44 @@ ENTRY(feroceon_range_dma_flush_range)
         mcr     p15, 0, r0, c7, c10, 4          @ drain WB
         mov     pc, lr
 
+/*
+ *      dma_map_area(start, size, dir)
+ *      - start - kernel virtual start address
+ *      - size  - size of region
+ *      - dir   - DMA direction
+ */
+ENTRY(feroceon_dma_map_area)
+        add     r1, r1, r0
+        cmp     r2, #DMA_TO_DEVICE
+        beq     feroceon_dma_clean_range
+        bcs     feroceon_dma_inv_range
+        b       feroceon_dma_flush_range
+ENDPROC(feroceon_dma_map_area)
+
+/*
+ *      dma_map_area(start, size, dir)
+ *      - start - kernel virtual start address
+ *      - size  - size of region
+ *      - dir   - DMA direction
+ */
+ENTRY(feroceon_range_dma_map_area)
+        add     r1, r1, r0
+        cmp     r2, #DMA_TO_DEVICE
+        beq     feroceon_range_dma_clean_range
+        bcs     feroceon_range_dma_inv_range
+        b       feroceon_range_dma_flush_range
+ENDPROC(feroceon_range_dma_map_area)
+
+/*
+ *      dma_unmap_area(start, size, dir)
+ *      - start - kernel virtual start address
+ *      - size  - size of region
+ *      - dir   - DMA direction
+ */
+ENTRY(feroceon_dma_unmap_area)
+        mov     pc, lr
+ENDPROC(feroceon_dma_unmap_area)
+
 ENTRY(feroceon_cache_fns)
         .long   feroceon_flush_kern_cache_all
         .long   feroceon_flush_user_cache_all
@@ -374,6 +412,8 @@ ENTRY(feroceon_cache_fns)
         .long   feroceon_coherent_kern_range
         .long   feroceon_coherent_user_range
         .long   feroceon_flush_kern_dcache_area
+        .long   feroceon_dma_map_area
+        .long   feroceon_dma_unmap_area
         .long   feroceon_dma_inv_range
         .long   feroceon_dma_clean_range
         .long   feroceon_dma_flush_range
@@ -385,6 +425,8 @@ ENTRY(feroceon_range_cache_fns)
         .long   feroceon_coherent_kern_range
         .long   feroceon_coherent_user_range
         .long   feroceon_range_flush_kern_dcache_area
+        .long   feroceon_range_dma_map_area
+        .long   feroceon_dma_unmap_area
         .long   feroceon_range_dma_inv_range
         .long   feroceon_range_dma_clean_range
         .long   feroceon_range_dma_flush_range