Document device tree binding information as required by
the ZYNQ USB controller.
Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xxxxxxxxxx>
---
.../devicetree/bindings/usb/ci-hdrc-zynq.txt | 23 ++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt
new file mode 100644
index 0000000..54bb3b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt
@@ -0,0 +1,23 @@
+Xilinx Zynq usb controller based on synopsys usb IP(v2.20a)
+
+Required properties:
+- compatible: should contain "xlnx,zynq-usb-2.20a"
+- clocks: clock provider specifier
+- reg: offset and length of the register set in the memory map
+- interrupt-parent: the phandle for the interrupt controller that services
+ interrupts for this device.
+- interrupts: interrupt-specifier for the controller interrupt.
+- phy_type: should be "ulpi"
+- dr_mode: should be "peripheral" or "host"
+
+Examples:
+
+ usb@e0002000 {
+ clocks = <&clkc 28>;
+ compatible = "xlnx,zynq-usb-2.20a";
+ dr_mode = "host";
+ interrupt-parent = <&ps7_scugic_0>;
+ interrupts = <0 21 4>;
+ phy_type = "ulpi";
+ reg = <0xe0002000 0x1000>;
+ } ;
--
1.7.4
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