dt-bindings: usb: new ehci-npcm7xx dt

Device Tree documentation for Nuvoton npcm7xx EHCI.

Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt b/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
new file mode 100644 (file)
index 0000000..5a0f1f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
@@ -0,0 +1,18 @@
+Nuvoton NPCM7XX SoC USB controllers:
+-----------------------------
+
+EHCI:
+-----
+
+Required properties:
+- compatible: "nuvoton,npcm750-ehci"
+- interrupts: Should contain the EHCI interrupt
+- reg:        Physical address and length of the register set for the device
+
+Example:
+
+       ehci1: usb@f0806000 {
+               compatible = "nuvoton,npcm750-ehci";
+               reg = <0xf0806000 0x1000>;
+               interrupts = <0 61 4>;
+       };