USB: ehci_fsl update for MPC831x support

For MPC831x support, change the ehci-fsl driver to preserve
bits set in platform code.  Add a common CONFIG_USB_EHCI_FSL
to indicate presence of Freescale EHCI SOC.  Add FSL_USB2_DR_OTG
operating mode support, thus both host and device can work for the
mini-ab receptacle.  Note: this doesn't enable OTG protocol
support.

Signed-off-by: Li Yang <leoli@freescale.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index a2bcca8140c6..2f529828c74d 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -77,6 +77,13 @@ config USB_EHCI_BIG_ENDIAN_DESC
         depends on USB_EHCI_HCD && 440EPX
         default y
 
+config USB_EHCI_FSL
+        bool
+        select USB_EHCI_ROOT_HUB_TT
+        default y if MPC834x || PPC_MPC831x
+        ---help---
+          Variation of ARC USB block used in some Freescale chips.
+
 config USB_ISP116X_HCD
         tristate "ISP116X HCD support"
         depends on USB