1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 293f7412992e..f098e2a291a0 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -17,6 +17,15 @@
 #include <plat/ehci.h>
 #include <plat/usb-phy.h>
 
+#define EHCI_INSNREG00(base)                    (base + 0x90)
+#define EHCI_INSNREG00_ENA_INCR16               (0x1 << 25)
+#define EHCI_INSNREG00_ENA_INCR8                (0x1 << 24)
+#define EHCI_INSNREG00_ENA_INCR4                (0x1 << 23)
+#define EHCI_INSNREG00_ENA_INCRX_ALIGN          (0x1 << 22)
+#define EHCI_INSNREG00_ENABLE_DMA_BURST \
+        (EHCI_INSNREG00_ENA_INCR16 | EHCI_INSNREG00_ENA_INCR8 | \
+         EHCI_INSNREG00_ENA_INCR4 | EHCI_INSNREG00_ENA_INCRX_ALIGN)
+
 struct s5p_ehci_hcd {
         struct device *dev;
         struct usb_hcd *hcd;
@@ -128,6 +137,9 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev)
         ehci->regs = hcd->regs +
                 HC_LENGTH(ehci, readl(&ehci->caps->hc_capbase));
 
+        /* DMA burst Enable */
+        writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
+
         dbg_hcs_params(ehci, "reset");
         dbg_hcc_params(ehci, "reset");
 
@@ -234,6 +246,9 @@ static int s5p_ehci_resume(struct device *dev)
         if (pdata && pdata->phy_init)
                 pdata->phy_init(pdev, S5P_USB_PHY_HOST);
 
+        /* DMA burst Enable */
+        writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
+
         if (time_before(jiffies, ehci->next_statechange))
                 msleep(100);