Thsi patch aim at documenting USB related dt-bindings for the
Cadence USBSS-DRD controller.

Signed-off-by: Pawel Laszczak <paw...@cadence.com>
---
 .../devicetree/bindings/usb/cdns3-usb.txt       | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/cdns3-usb.txt

diff --git a/Documentation/devicetree/bindings/usb/cdns3-usb.txt 
b/Documentation/devicetree/bindings/usb/cdns3-usb.txt
new file mode 100644
index 000000000000..f9e953f32d47
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/cdns3-usb.txt
@@ -0,0 +1,17 @@
+Binding for the Cadence USBSS-DRD controller
+
+Required properties:
+  - reg: Physical base address and size of the controller's register area.
+  - compatible: Should contain: "cdns,usb3"
+  - interrupts: Interrupt specifier. Refer to interrupt bindings.
+
+
+Example:
+       cdns3@f3000000 {
+               compatible = "cdns,usb3";
+               interrupts = <USB_IRQ  7 IRQ_TYPE_LEVEL_HIGH>;
+               reg = <0xf3000000 0x10000       //memory area for OTG/DRD 
registers
+                       0xf3010000 0x10000      //memory area for HOST registers
+                       0xf3020000 0x10000>;    //memory area for Device 
registers
+       };
+
-- 
2.17.1

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