Bindings/remoteproc/renesas,rcar-rproc.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/remoteproc/renesas,rcar-rproc.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Renesas R-Car remote processor controller
   8
   9 maintainers:
  10   - Julien Massot <julien.massot@iot.bzh>
  11
  12 description: |
  13   This document defines the bindings for the remoteproc component that loads and
  14   boots firmwares on the Renesas R-Car family chipset.
  15   R-Car gen3 family may have a realtime processor, this processor shares peripheral
  16   and RAM with the host processor with the same address map.
  17
  18 properties:
  19   compatible:
  20     const: renesas,rcar-cr7
  21
  22   resets:
  23     maxItems: 1
  24
  25   power-domains:
  26     maxItems: 1
  27
  28   memory-region:
  29     description:
  30       List of phandles to the reserved memory regions associated with the
  31       remoteproc device. This is variable and describes the memories shared with
  32       the remote processor (e.g. remoteproc firmware and carveouts, rpmsg
  33       vrings, ...).
  34       (see reserved-memory/reserved-memory.yaml in dtschema project)
  35
  36 required:
  37   - compatible
  38   - resets
  39   - memory-region
  40   - power-domains
  41
  42 additionalProperties: false
  43
  44 examples:
  45   - |
  46     #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
  47     #include <dt-bindings/power/r8a7795-sysc.h>
  48     reserved-memory {
  49         #address-cells = <2>;
  50         #size-cells = <2>;
  51
  52         cr7_ram: cr7_ram@40040000 {
  53             no-map;
  54             reg = <0x0 0x40040000 0x0 0x1fc0000>;
  55         };
  56     };
  57
  58     cr7_rproc: cr7 {
  59         compatible = "renesas,rcar-cr7";
  60         memory-region = <&cr7_ram>;
  61         power-domains = <&sysc R8A7795_PD_CR7>;
  62         resets = <&cpg 222>;
  63     };
  64
  65 ...