Documentation/devicetree/bindings/remoteproc/renesas,rcar-rproc.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/remoteproc/renesas,rcar-rproc.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/remoteproc/renesas,rcar-rproc.yaml
Extension
.yaml
Size
1676 bytes
Lines
66
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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# 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 in dtschema project)

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>;
    };

...

Annotation

Implementation Notes