# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/remoteproc/amlogic,meson-mx-ao-arc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Amlogic Meson AO ARC Remote Processor

description:
  Amlogic Meson6, Meson8, Meson8b and Meson8m2 SoCs embed an ARC core
  controller for always-on operations, typically used for managing
  system suspend. Meson6 and older use a ARC core based on the ARCv1
  ISA, while Meson8, Meson8b and Meson8m2 use an ARC EM4 (ARCv2 ISA)
  core.

maintainers:
  - Martin Blumenstingl <martin.blumenstingl@googlemail.com>

properties:
  compatible:
    items:
      - enum:
          - amlogic,meson8-ao-arc
          - amlogic,meson8b-ao-arc
      - const: amlogic,meson-mx-ao-arc

  firmware-name:
    $ref: /schemas/types.yaml#/definitions/string
    description:
      The name of the firmware which should be loaded for this remote
      processor.

  reg:
    description:
      Address ranges of the remap and CPU control addresses for the
      remote processor.
    minItems: 2

  reg-names:
    items:
      - const: remap
      - const: cpu

  resets:
    minItems: 1

  clocks:
    minItems: 1

  sram:
    maxItems: 1

  amlogic,secbus2:
    $ref: /schemas/types.yaml#/definitions/phandle
    description:
      A phandle to the SECBUS2 region which contains some configuration
      bits of this remote processor

required:
  - compatible
  - reg
  - reg-names
  - resets
  - clocks
  - sram
  - amlogic,secbus2

additionalProperties: false

examples:
  - |
    remoteproc@1c {
      compatible = "amlogic,meson8-ao-arc", "amlogic,meson-mx-ao-arc";
      reg = <0x1c 0x8>, <0x38 0x8>;
      reg-names = "remap", "cpu";
      resets = <&media_cpu_reset>;
      clocks = <&media_cpu_clock>;
      sram = <&ahb_sram_ao_arc>;
      amlogic,secbus2 = <&secbus2>;
    };

...