xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/remoteproc/renesas,rcar-rproc.yaml

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/remoteproc/renesas,rcar-rproc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas R-Car remote processor controller

maintainers:
  - Julien Massot <julien.massot@iot.bzh>

description: |
  This document defines the bindings for the remoteproc component that loads and
  boots firmwares on the Renesas R-Car family chipset.
  R-Car gen3 family may have a realtime processor, this processor shares peripheral
  and RAM with the host processor with the same address map.

properties:
  compatible:
    const: renesas,rcar-cr7

  resets:
    maxItems: 1

  power-domains:
    maxItems: 1

  memory-region:
    description:
      List of phandles to the reserved memory regions associated with the
      remoteproc device. This is variable and describes the memories shared with
      the remote processor (e.g. remoteproc firmware and carveouts, rpmsg
      vrings, ...).
      (see ../reserved-memory/reserved-memory.yaml)

required:
  - compatible
  - resets
  - memory-region
  - power-domains

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
    #include <dt-bindings/power/r8a7795-sysc.h>
    reserved-memory {
        #address-cells = <2>;
        #size-cells = <2>;

        cr7_ram: cr7_ram@40040000 {
            no-map;
            reg = <0x0 0x40040000 0x0 0x1fc0000>;
        };
    };

    cr7_rproc: cr7 {
        compatible = "renesas,rcar-cr7";
        memory-region = <&cr7_ram>;
        power-domains = <&sysc R8A7795_PD_CR7>;
        resets = <&cpg 222>;
    };

...