2 files changed, 14 insertions, 2 deletions

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 889c2027e7f7..a205a53c61ff 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -201,9 +201,15 @@ static void tdi_reset (struct ehci_hcd *ehci)
         u32 __iomem     *reg_ptr;
         u32             tmp;
 
-        reg_ptr = (u32 __iomem *)(((u8 __iomem *)ehci->regs) + 0x68);
+        reg_ptr = (u32 __iomem *)(((u8 __iomem *)ehci->regs) + USBMODE);
         tmp = ehci_readl(ehci, reg_ptr);
-        tmp |= 0x3;
+        tmp |= USBMODE_CM_HC;
+        /* The default byte access to MMR space is LE after
+         * controller reset. Set the required endian mode
+         * for transfer buffers to match the host microprocessor
+         */
+        if (ehci_big_endian_mmio(ehci))
+                tmp |= USBMODE_BE;
         ehci_writel(ehci, tmp, reg_ptr);
 }
 
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 4d617108f552..2c68a04230c1 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -302,6 +302,12 @@ struct ehci_regs {
 #define PORT_RWC_BITS   (PORT_CSC | PORT_PEC | PORT_OCC)
 } __attribute__ ((packed));
 
+#define USBMODE         0x68            /* USB Device mode */
+#define USBMODE_SDIS    (1<<3)          /* Stream disable */
+#define USBMODE_BE      (1<<2)          /* BE/LE endianness select */
+#define USBMODE_CM_HC   (3<<0)          /* host controller mode */
+#define USBMODE_CM_IDLE (0<<0)          /* idle state */
+
 /* Appendix C, Debug port ... intended for use with special "debug devices"
  * that can help if there's no serial console.  (nonstandard enumeration.)
  */