Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr5.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr5.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: LPDDR5 SDRAM compliant to JEDEC JESD209-5
   8
   9 maintainers:
  10   - Krzysztof Kozlowski <krzk@kernel.org>
  11
  12 allOf:
  13   - $ref: jedec,lpddr-props.yaml#
  14
  15 properties:
  16   compatible:
  17     items:
  18       - pattern: "^lpddr5-[0-9a-f]{2},[0-9a-f]{4}$"
  19       - const: jedec,lpddr5
  20
  21   serial-id:
  22     $ref: /schemas/types.yaml#/definitions/uint32-array
  23     description:
  24       Serial IDs read from Mode Registers 47 through 54. One byte per uint32
  25       cell (i.e. <MR47 MR48 MR49 MR50 MR51 MR52 MR53 MR54>).
  26     maxItems: 8
  27     items:
  28       minimum: 0
  29       maximum: 255
  30
  31 required:
  32   - compatible
  33   - density
  34   - io-width
  35
  36 unevaluatedProperties: false
  37
  38 examples:
  39   - |
  40     lpddr {
  41         compatible = "lpddr5-01,0200", "jedec,lpddr5";
  42         density = <8192>;
  43         io-width = <8>;
  44         revision-id = <2 0>;
  45         serial-id = <3 1 0 0 0 0 0 0>;
  46     };