Add device tree binding document for Renesas r8a77470(a.k.a RZ/G1C)
on-chip EHCI controller driver.
Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
---
V1-->V2
* New patch
---
.../devicetree/bindings/usb/ehci-r8a77470.txt | 35 ++++++++++++++++++++++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/ehci-r8a77470.txt
diff --git a/Documentation/devicetree/bindings/usb/ehci-r8a77470.txt b/Documentation/devicetree/bindings/usb/ehci-r8a77470.txt
new file mode 100644
index 0000000..4646adcf
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ehci-r8a77470.txt
@@ -0,0 +1,35 @@
+Renesas R8A77470(RZ/G1C) USB EHCI controller
+
+Required properties:
+ - compatible : must be "renesas,r8a77470"
+ - reg : physical base addresses of the controller and length
+ of memory mapped region
+ - interrupts : one EHCI interrupt should be described here
+ - clocks : a list of phandle + clock specifier pairs.
+ - phys : see usb-hcd.txt in the current directory
+ - resets : phandle + reset specifier pair
+
+Additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
+Example:
+
+ ehci0: usb@ee080100 {
+ compatible = "renesas,ehci-r8a77470";
+ reg = <0 0xee080100 0 0x800>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 703>;
+ phys = <&usb0 0>;
+ phy-names = "usb";
+ resets = <&cpg 703>;
+ };
+
+ ehci1: usb@ee0c0100 {
+ compatible = "renesas,ehci-r8a77470";
+ reg = <0 0xee0c0100 0 0x800>;
+ interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 705>;
+ phys = <&usb0 1>, <&usb1 0>;
+ phy-names = "usb";
+ resets = <&cpg 705>;
+ };
--
2.7.4
