usb: dwc3: of-simple: add compatible for Cavium

Add necessary compatible flag for Cavium's DWC3 so
dwc3-of-simple will probe.

Tested-by: Steven J. Hill <Steven.Hill@cavium.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/Documentation/devicetree/bindings/usb/dwc3-cavium.txt b/Documentation/devicetree/bindings/usb/dwc3-cavium.txt
new file mode 100644 (file)
index 0000000..710b782
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/dwc3-cavium.txt
@@ -0,0 +1,28 @@
+Cavium SuperSpeed DWC3 USB SoC controller
+
+Required properties:
+- compatible:  Should contain "cavium,octeon-7130-usb-uctl"
+
+Required child node:
+A child node must exist to represent the core DWC3 IP block. The name of
+the node is not important. The content of the node is defined in dwc3.txt.
+
+Example device node:
+
+                   uctl@1180069000000 {
+                           compatible = "cavium,octeon-7130-usb-uctl";
+                           reg = <0x00011800 0x69000000 0x00000000 0x00000100>;
+                           ranges;
+                           #address-cells = <0x00000002>;
+                           #size-cells = <0x00000002>;
+                           refclk-frequency = <0x05f5e100>;
+                           refclk-type-ss = "dlmc_ref_clk0";
+                           refclk-type-hs = "dlmc_ref_clk0";
+                           power = <0x00000002 0x00000002 0x00000001>;
+                           xhci@1690000000000 {
+                                   compatible = "cavium,octeon-7130-xhci", "synopsys,dwc3";
+                                   reg = <0x00016900 0x00000000 0x00000010 0x00000000>;
+                                   interrupt-parent = <0x00000010>;
+                                   interrupts = <0x00000009 0x00000004>;
+                           };
+                   };

diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index ed6bbb31ec9035309223c7ec0f4df73980769747..fe414e7a9c78cda7405db573f321da91d0d4eb5b 100644 (file)
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -176,6 +176,7 @@ static const struct of_device_id of_dwc3_simple_match[] = {
        { .compatible = "qcom,dwc3" },
        { .compatible = "rockchip,rk3399-dwc3" },
        { .compatible = "xlnx,zynqmp-dwc3" },
+       { .compatible = "cavium,octeon-7130-usb-uctl" },
        { /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, of_dwc3_simple_match);