xref: /linux/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,ddr4.yaml (revision c17ee635fd3a482b2ad2bf5e269755c2eae5f25e) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,ddr4.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: DDR4 SDRAM compliant to JEDEC JESD79-4D
8
9maintainers:
10  - Krzysztof Kozlowski <krzk@kernel.org>
11
12allOf:
13  - $ref: jedec,sdram-props.yaml#
14
15properties:
16  compatible:
17    items:
18      - pattern: "^ddr4-[0-9a-f]{4},[a-z]{1,20}-[0-9a-f]{2}$"
19      - const: jedec,ddr4
20
21required:
22  - compatible
23  - density
24  - io-width
25
26unevaluatedProperties: false
27
28examples:
29  - |
30    ddr {
31        compatible = "ddr4-00ff,azaz-ff", "jedec,ddr4";
32        density = <8192>;
33        io-width = <8>;
34    };
35