diff options
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml new file mode 100644 index 0000000000..bb373eb025 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml @@ -0,0 +1,135 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/dwc3-xilinx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx SuperSpeed DWC3 USB SoC controller + +maintainers: + - Piyush Mehta <piyush.mehta@amd.com> + +properties: + compatible: + items: + - enum: + - xlnx,zynqmp-dwc3 + - xlnx,versal-dwc3 + reg: + maxItems: 1 + + "#address-cells": + enum: [ 1, 2 ] + + "#size-cells": + enum: [ 1, 2 ] + + ranges: true + + power-domains: + description: specifies a phandle to PM domain provider node + maxItems: 1 + + clocks: + description: + A list of phandle and clock-specifier pairs for the clocks + listed in clock-names. + items: + - description: Master/Core clock, has to be >= 125 MHz + for SS operation and >= 60MHz for HS operation. + - description: Clock source to core during PHY power down. + + clock-names: + items: + - const: bus_clk + - const: ref_clk + + resets: + description: + A list of phandles for resets listed in reset-names. + + items: + - description: USB core reset + - description: USB hibernation reset + - description: USB APB reset + + reset-names: + items: + - const: usb_crst + - const: usb_hibrst + - const: usb_apbrst + + phys: + minItems: 1 + maxItems: 2 + + phy-names: + minItems: 1 + maxItems: 2 + items: + enum: + - usb2-phy + - usb3-phy + + reset-gpios: + description: GPIO used for the reset ulpi-phy + maxItems: 1 + +# Required child node: + +patternProperties: + "^usb@[0-9a-f]+$": + $ref: snps,dwc3.yaml# + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + - ranges + - power-domains + - clocks + - clock-names + - resets + - reset-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/dma/xlnx-zynqmp-dpdma.h> + #include <dt-bindings/power/xlnx-zynqmp-power.h> + #include <dt-bindings/reset/xlnx-zynqmp-resets.h> + #include <dt-bindings/clock/xlnx-zynqmp-clk.h> + #include <dt-bindings/reset/xlnx-zynqmp-resets.h> + #include <dt-bindings/phy/phy.h> + axi { + #address-cells = <2>; + #size-cells = <2>; + + usb@0 { + #address-cells = <0x2>; + #size-cells = <0x2>; + compatible = "xlnx,zynqmp-dwc3"; + reg = <0x0 0xff9d0000 0x0 0x100>; + clocks = <&zynqmp_clk USB0_BUS_REF>, <&zynqmp_clk USB3_DUAL_REF>; + clock-names = "bus_clk", "ref_clk"; + power-domains = <&zynqmp_firmware PD_USB_0>; + resets = <&zynqmp_reset ZYNQMP_RESET_USB1_CORERESET>, + <&zynqmp_reset ZYNQMP_RESET_USB1_HIBERRESET>, + <&zynqmp_reset ZYNQMP_RESET_USB1_APB>; + reset-names = "usb_crst", "usb_hibrst", "usb_apbrst"; + phys = <&psgtr 2 PHY_TYPE_USB3 0 2>; + phy-names = "usb3-phy"; + ranges; + + usb@fe200000 { + compatible = "snps,dwc3"; + reg = <0x0 0xfe200000 0x0 0x40000>; + interrupt-names = "host", "otg"; + interrupts = <0 65 4>, <0 69 4>; + dr_mode = "host"; + dma-coherent; + }; + }; + }; |