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           - raspberrypi,bootloader-public-key
  21       - const: nvmem-rmem
  22
  23   reg:
  24     maxItems: 1
  25
  26   no-map:
  27     $ref: /schemas/types.yaml#/definitions/flag
  28     description:
  29       Avoid creating a virtual mapping of the region as part of the OS'
  30       standard mapping of system memory.
  31
  32 required:
  33   - compatible
  34   - no-map
  35
  36 unevaluatedProperties: false
  37
  38 examples:
  39   - |
  40         reserved-memory {
  41                 #address-cells = <1>;
  42                 #size-cells = <1>;
  43
  44                 blconfig: nvram@10000000 {
  45                         compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
  46                         #address-cells = <1>;
  47                         #size-cells = <1>;
  48                         reg = <0x10000000 0x1000>;
  49                         no-map;
  50                 };
  51         };
  52
  53 ...