USB: gadget driver for LPC32xx

This patch adds a USB gadget driver for the LPC32xx ARM SoC.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/usb/lpc32xx-udc.txt b/Documentation/devicetree/bindings/usb/lpc32xx-udc.txt
new file mode 100644
index 000000000000..29f12a533f66
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/lpc32xx-udc.txt
@@ -0,0 +1,28 @@
+* NXP LPC32xx SoC USB Device Controller (UDC)
+
+Required properties:
+- compatible: Must be "nxp,lpc3220-udc"
+- reg: Physical base address of the controller and length of memory mapped
+  region.
+- interrupts: The USB interrupts:
+              * USB Device Low Priority Interrupt
+              * USB Device High Priority Interrupt
+              * USB Device DMA Interrupt
+              * External USB Transceiver Interrupt (OTG ATX)
+- transceiver: phandle of the associated ISP1301 device - this is necessary for
+               the UDC controller for connecting to the USB physical layer
+
+Example:
+
+	isp1301: usb-transceiver@2c {
+		compatible = "nxp,isp1301";
+		reg = <0x2c>;
+	};
+
+	usbd@31020000 {
+		compatible = "nxp,lpc3220-udc";
+		reg = <0x31020000 0x300>;
+		interrupt-parent = <&mic>;
+		interrupts = <0x3d 0>, <0x3e 0>, <0x3c 0>, <0x3a 0>;
+		transceiver = <&isp1301>;
+	};