Documentation/devicetree/bindings/reserved-memory/phram.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/reserved-memory/phram.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: MTD/block device in RAM
   8
   9 description: |
  10   Specifies that the reserved memory region can be used as an MTD or block
  11   device.
  12
  13   The "phram" node is named after the "MTD in PHysical RAM" driver which
  14   provides an implementation of this functionality in Linux.
  15
  16 maintainers:
  17   - Vincent Whitchurch <vincent.whitchurch@axis.com>
  18
  19 allOf:
  20   - $ref: reserved-memory.yaml
  21   - $ref: /schemas/mtd/mtd.yaml
  22
  23 properties:
  24   compatible:
  25     const: phram
  26
  27   reg:
  28     description: region of memory that can be used as an MTD/block device
  29
  30 required:
  31   - compatible
  32   - reg
  33
  34 unevaluatedProperties: false
  35
  36 examples:
  37   - |
  38     reserved-memory {
  39         #address-cells = <1>;
  40         #size-cells = <1>;
  41
  42         phram: flash@12340000 {
  43             compatible = "phram";
  44             label = "rootfs";
  45             reg = <0x12340000 0x00800000>;
  46         };
  47     };