dt-bindings: MIPS: Document Ingenic SoCs binding.

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/mips/ingenic/ingenic,cpu.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Bindings for Ingenic XBurst family CPUs

maintainers:

  - 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>

description:

  Ingenic XBurst family CPUs shall have the following properties.

properties:

  compatible:

    oneOf:

      - description: Ingenic XBurst®1 CPU Cores

        enum:

          - ingenic,xburst-mxu1.0

          - ingenic,xburst-fpu1.0-mxu1.1

          - ingenic,xburst-fpu2.0-mxu2.0

      - description: Ingenic XBurst®2 CPU Cores

        enum:

          - ingenic,xburst2-fpu2.1-mxu2.1-smt

  reg:

    maxItems: 1

  clocks:

    maxItems: 1

required:

  - device_type

  - compatible

  - reg

  - clocks

examples:

  - |

    #include <dt-bindings/clock/jz4780-cgu.h>

    cpus {

	#address-cells = <1>;

	#size-cells = <0>;

	cpu0: cpu@0 {

		device_type = "cpu";

		compatible = "ingenic,xburst-fpu1.0-mxu1.1";

		reg = <0>;

		clocks = <&cgu JZ4780_CLK_CPU>;

		clock-names = "cpu";

	};

	cpu1: cpu@1 {

		device_type = "cpu";

		compatible = "ingenic,xburst-fpu1.0-mxu1.1";

		reg = <1>;

		clocks = <&cgu JZ4780_CLK_CORE1>;

		clock-names = "cpu";

	};

    };

...