usb: add Freescale QE/CPM USB peripheral controller driver

Some of Freescale SoC chips have a QE or CPM co-processor which
supports full speed USB.  The driver adds device mode support
of both QE and CPM USB controller to Linux USB gadget.  The
driver is tested with MPC8360 and MPC8272, and should work with
other models having QE/CPM given minor tweaks.

Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 80a7c02dc951..c0dfd9be3115 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -341,6 +341,25 @@ config USB_AMD5536UDC
         default USB_GADGET
         select USB_GADGET_SELECTED
 
+config USB_GADGET_FSL_QE
+        boolean "Freescale QE/CPM USB Device Controller"
+        depends on FSL_SOC && (QUICC_ENGINE || CPM)
+        help
+           Some of Freescale PowerPC processors have a Full Speed
+           QE/CPM2 USB controller, which support device mode with 4
+           programmable endpoints. This driver supports the
+           controller in the MPC8360 and MPC8272, and should work with
+           controllers having QE or CPM2, given minor tweaks.
+
+           Set CONFIG_USB_GADGET to "m" to build this driver as a
+           dynmically linked module called "fsl_qe_udc".
+
+config USB_FSL_QE
+        tristate
+        depends on USB_GADGET_FSL_QE
+        default USB_GADGET
+        select USB_GADGET_SELECTED
+
 config USB_GADGET_NET2280
         boolean "NetChip 228x"
         depends on PCI