[PATCH v3 3/5] dt-binding: Add JH7110 USB wrapper layer doc.
Peter Chen
peter.chen at kernel.org
Wed Mar 15 19:43:52 PDT 2023
On 23-03-15 18:44:09, Minda Chen wrote:
> The dt-binding doc of Cadence USBSS-DRD controller wrapper
> layer.
>
> Signed-off-by: Minda Chen <minda.chen at starfivetech.com>
Reviewed-by: Peter Chen <peter.chen at kernel.org>
> ---
> .../bindings/usb/starfive,jh7110-usb.yaml | 119 ++++++++++++++++++
> 1 file changed, 119 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml
>
> diff --git a/Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml b/Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml
> new file mode 100644
> index 000000000000..b1a8dc6d7b4b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml
> @@ -0,0 +1,119 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/starfive,jh7110-usb.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 wrapper module for the Cadence USBSS-DRD controller
> +
> +maintainers:
> + - Minda Chen <minda.chen at starfivetech.com>
> +
> +properties:
> + compatible:
> + const: starfive,jh7110-usb
> +
> + clocks:
> + items:
> + - description: lpm clock
> + - description: stb clock
> + - description: apb clock
> + - description: axi clock
> + - description: utmi apb clock
> +
> + clock-names:
> + items:
> + - const: lpm
> + - const: stb
> + - const: apb
> + - const: axi
> + - const: utmi_apb
> +
> + resets:
> + items:
> + - description: PWRUP reset
> + - description: APB reset
> + - description: AXI reset
> + - description: UTMI_APB reset
> +
> + starfive,sys-syscon:
> + $ref: /schemas/types.yaml#/definitions/phandle-array
> + items:
> + items:
> + - description: phandle to System Register Controller sys_syscon node.
> + - description: offset of SYS_SYSCONSAIF__SYSCFG register for USB.
> + description:
> + The phandle to System Register Controller syscon node and the offset
> + of SYS_SYSCONSAIF__SYSCFG register for USB.
> +
> + starfive,stg-syscon:
> + $ref: /schemas/types.yaml#/definitions/phandle-array
> + items:
> + items:
> + - description: phandle to System Register Controller stg_syscon node.
> + - description: register0 offset of STG_SYSCONSAIF__SYSCFG register for USB.
> + - description: register1 offset of STG_SYSCONSAIF__SYSCFG register for USB.
> + - description: register2 offset of STG_SYSCONSAIF__SYSCFG register for USB.
> + - description: register3 offset of STG_SYSCONSAIF__SYSCFG register for USB.
> + description:
> + The phandle to System Register Controller syscon node and the offset
> + of STG_SYSCONSAIF__SYSCFG register for USB. Total 4 regsisters offset
> + for USB.
> +
> + "#address-cells":
> + maximum: 2
> +
> + "#size-cells":
> + maximum: 2
> +
> + ranges: true
> +
> +patternProperties:
> + "^usb@[0-9a-f]+$":
> + type: object
> +
> +required:
> + - compatible
> + - clocks
> + - clock-names
> + - resets
> + - starfive,sys-syscon
> + - starfive,stg-syscon
> + - "#address-cells"
> + - "#size-cells"
> + - ranges
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + usb at 10100000 {
> + compatible = "starfive,jh7110-usb";
> + clocks = <&syscrg 4>,
> + <&stgcrg 5>,
> + <&stgcrg 1>,
> + <&stgcrg 3>,
> + <&stgcrg 2>;
> + clock-names = "lpm", "stb", "apb", "axi", "utmi_apb";
> + resets = <&stgcrg 10>,
> + <&stgcrg 8>,
> + <&stgcrg 7>,
> + <&stgcrg 9>;
> + starfive,stg-syscon = <&stg_syscon 0x4 0xc4 0x148 0x1f4>;
> + starfive,sys-syscon = <&sys_syscon 0x18>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x0 0x10100000 0x100000>;
> +
> + usb at 0 {
> + compatible = "cdns,usb3";
> + reg = <0x0 0x10000>,
> + <0x10000 0x10000>,
> + <0x20000 0x10000>;
> + reg-names = "otg", "xhci", "dev";
> + interrupts = <100>, <108>, <110>;
> + interrupt-names = "host", "peripheral", "otg";
> + maximum-speed = "super-speed";
> + dr_mode = "host";
> + };
> + };
> --
> 2.17.1
>
--
Thanks,
Peter Chen
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