diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index f450fe8cbd6..2c69b89eac4 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1240,6 +1240,8 @@ mv_xor_conf_mbus_windows(struct mv_xor_device *xordev,
 
 	writel(win_enable, base + WINDOW_BAR_ENABLE(0));
 	writel(win_enable, base + WINDOW_BAR_ENABLE(1));
+	writel(0, base + WINDOW_OVERRIDE_CTRL(0));
+	writel(0, base + WINDOW_OVERRIDE_CTRL(1));
 }
 
 static int __devinit mv_xor_probe(struct platform_device *pdev)
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h
index 17043287b71..c632a4761fc 100644
--- a/drivers/dma/mv_xor.h
+++ b/drivers/dma/mv_xor.h
@@ -53,6 +53,7 @@
 #define WINDOW_SIZE(w)		(0x270 + ((w) << 2))
 #define WINDOW_REMAP_HIGH(w)	(0x290 + ((w) << 2))
 #define WINDOW_BAR_ENABLE(chan)	(0x240 + ((chan) << 2))
+#define WINDOW_OVERRIDE_CTRL(chan)	(0x2A0 + ((chan) << 2))
 
 struct mv_xor_device {
 	void __iomem	     *xor_base;