Documentation/devicetree/bindings/nvmem/rmem.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/nvmem/rmem.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Reserved Memory Based nvmem Device
   8
   9 maintainers:
  10   - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
  11
  12 allOf:
  13   - $ref: "nvmem.yaml#"
  14
  15 properties:
  16   compatible:
  17     items:
  18       - enum:
  19           - raspberrypi,bootloader-config
  20       - const: nvmem-rmem
  21
  22   reg:
  23     maxItems: 1
  24
  25   no-map:
  26     $ref: /schemas/types.yaml#/definitions/flag
  27     description:
  28       Avoid creating a virtual mapping of the region as part of the OS'
  29       standard mapping of system memory.
  30
  31 required:
  32   - compatible
  33   - no-map
  34
  35 unevaluatedProperties: false
  36
  37 examples:
  38   - |
  39         reserved-memory {
  40                 #address-cells = <1>;
  41                 #size-cells = <1>;
  42
  43                 blconfig: nvram@10000000 {
  44                         compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
  45                         #address-cells = <1>;
  46                         #size-cells = <1>;
  47                         reg = <0x10000000 0x1000>;
  48                         no-map;
  49                 };
  50         };
  51
  52 ...