diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 4fff837..853eba5 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -115,6 +115,11 @@ static inline void __dma_page_dev_to_cpu(struct page *page, unsigned long off,
 		___dma_page_dev_to_cpu(page, off, size, dir);
 }
 
+static inline void __dma_sync(void)
+{
+	dsb();
+}
+
 /*
  * Return whether the given device DMA address mask can be supported
  * properly.  For example, if your device can only drive the low 24-bits
@@ -378,6 +383,7 @@ static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
 	BUG_ON(!valid_dma_direction(dir));
 
 	addr = __dma_map_single(dev, cpu_addr, size, dir);
+	__dma_sync();
 	debug_dma_map_page(dev, virt_to_page(cpu_addr),
 			(unsigned long)cpu_addr & ~PAGE_MASK, size,
 			dir, addr, true);
@@ -407,6 +413,7 @@ static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
 	BUG_ON(!valid_dma_direction(dir));
 
 	addr = __dma_map_page(dev, page, offset, size, dir);
+	__dma_sync();
 	debug_dma_map_page(dev, page, offset, size, dir, addr, false);
 
 	return addr;
@@ -431,6 +438,7 @@ static inline void dma_unmap_single(struct device *dev, dma_addr_t handle,
 {
 	debug_dma_unmap_page(dev, handle, size, dir, true);
 	__dma_unmap_single(dev, handle, size, dir);
+	__dma_sync();
 }
 
 /**
@@ -452,6 +460,7 @@ static inline void dma_unmap_page(struct device *dev, dma_addr_t handle,
 {
 	debug_dma_unmap_page(dev, handle, size, dir, false);
 	__dma_unmap_page(dev, handle, size, dir);
+	__dma_sync();
 }
 
 /**
@@ -484,6 +493,7 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev,
 		return;
 
 	__dma_single_dev_to_cpu(dma_to_virt(dev, handle) + offset, size, dir);
+	__dma_sync();
 }
 
 static inline void dma_sync_single_range_for_device(struct device *dev,
@@ -498,6 +508,7 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
 		return;
 
 	__dma_single_cpu_to_dev(dma_to_virt(dev, handle) + offset, size, dir);
+	__dma_sync();
 }
 
 static inline void dma_sync_single_for_cpu(struct device *dev,
diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S
index 1fa6f71..6eeb734 100644
--- a/arch/arm/mm/cache-fa.S
+++ b/arch/arm/mm/cache-fa.S
@@ -179,8 +179,6 @@ fa_dma_inv_range:
 	add	r0, r0, #CACHE_DLINESIZE
 	cmp	r0, r1
 	blo	1b
-	mov	r0, #0
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
@@ -197,8 +195,6 @@ fa_dma_clean_range:
 	add	r0, r0, #CACHE_DLINESIZE
 	cmp	r0, r1
 	blo	1b
-	mov	r0, #0	
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
@@ -212,8 +208,6 @@ ENTRY(fa_dma_flush_range)
 	add	r0, r0, #CACHE_DLINESIZE
 	cmp	r0, r1
 	blo	1b
-	mov	r0, #0	
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S
index f40c696..523c0cb 100644
--- a/arch/arm/mm/cache-v4wb.S
+++ b/arch/arm/mm/cache-v4wb.S
@@ -194,7 +194,6 @@ v4wb_dma_inv_range:
 	add	r0, r0, #CACHE_DLINESIZE
 	cmp	r0, r1
 	blo	1b
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
@@ -211,7 +210,6 @@ v4wb_dma_clean_range:
 	add	r0, r0, #CACHE_DLINESIZE
 	cmp	r0, r1
 	blo	1b
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index 73b4a8b..7a842dd 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -239,8 +239,6 @@ v6_dma_inv_range:
 	strlo	r2, [r0]			@ write for ownership
 #endif
 	blo	1b
-	mov	r0, #0
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
@@ -262,8 +260,6 @@ v6_dma_clean_range:
 	add	r0, r0, #D_CACHE_LINE_SIZE
 	cmp	r0, r1
 	blo	1b
-	mov	r0, #0
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
@@ -290,8 +286,6 @@ ENTRY(v6_dma_flush_range)
 	strlob	r2, [r0]			@ write for ownership
 #endif
 	blo	1b
-	mov	r0, #0
-	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mov	pc, lr
 
 /*
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index d32f02b..18dcef6 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -257,7 +257,6 @@ v7_dma_inv_range:
 	add	r0, r0, r2
 	cmp	r0, r1
 	blo	1b
-	dsb
 	mov	pc, lr
 ENDPROC(v7_dma_inv_range)
 
@@ -275,7 +274,6 @@ v7_dma_clean_range:
 	add	r0, r0, r2
 	cmp	r0, r1
 	blo	1b
-	dsb
 	mov	pc, lr
 ENDPROC(v7_dma_clean_range)
 
@@ -293,7 +291,6 @@ ENTRY(v7_dma_flush_range)
 	add	r0, r0, r2
 	cmp	r0, r1
 	blo	1b
-	dsb
 	mov	pc, lr
 ENDPROC(v7_dma_flush_range)
 
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 82a093c..042b056 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -97,6 +97,7 @@ static struct page *__dma_alloc_buffer(struct device *dev, size_t size, gfp_t gf
 	memset(ptr, 0, size);
 	dmac_flush_range(ptr, ptr + size);
 	outer_flush_range(__pa(ptr), __pa(ptr) + size);
+	__dma_sync();
 
 	return page;
 }
@@ -572,6 +573,7 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 		if (dma_mapping_error(dev, s->dma_address))
 			goto bad_mapping;
 	}
+	__dma_sync();
 	debug_dma_map_sg(dev, sg, nents, nents, dir);
 	return nents;
 
@@ -602,6 +604,8 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
 
 	for_each_sg(sg, s, nents, i)
 		__dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir);
+
+	__dma_sync();
 }
 EXPORT_SYMBOL(dma_unmap_sg);
 
@@ -627,6 +631,8 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 				      s->length, dir);
 	}
 
+	__dma_sync();
+
 	debug_dma_sync_sg_for_cpu(dev, sg, nents, dir);
 }
 EXPORT_SYMBOL(dma_sync_sg_for_cpu);
@@ -653,6 +659,8 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 				      s->length, dir);
 	}
 
+	__dma_sync();
+
 	debug_dma_sync_sg_for_device(dev, sg, nents, dir);
 }
 EXPORT_SYMBOL(dma_sync_sg_for_device);
