xref: /linux/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml (revision 7f71507851fc7764b36a3221839607d3a45c2025) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/memory-controllers/fsl/fsl,ddr.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale DDR memory controller
8
9maintainers:
10  - Borislav Petkov <bp@alien8.de>
11  - York Sun <york.sun@nxp.com>
12
13properties:
14  $nodename:
15    pattern: "^memory-controller@[0-9a-f]+$"
16
17  compatible:
18    oneOf:
19      - items:
20          - enum:
21              - fsl,qoriq-memory-controller-v4.4
22              - fsl,qoriq-memory-controller-v4.5
23              - fsl,qoriq-memory-controller-v4.7
24              - fsl,qoriq-memory-controller-v5.0
25          - const: fsl,qoriq-memory-controller
26      - enum:
27          - fsl,bsc9132-memory-controller
28          - fsl,mpc8536-memory-controller
29          - fsl,mpc8540-memory-controller
30          - fsl,mpc8541-memory-controller
31          - fsl,mpc8544-memory-controller
32          - fsl,mpc8548-memory-controller
33          - fsl,mpc8555-memory-controller
34          - fsl,mpc8560-memory-controller
35          - fsl,mpc8568-memory-controller
36          - fsl,mpc8569-memory-controller
37          - fsl,mpc8572-memory-controller
38          - fsl,mpc8349-memory-controller
39          - fsl,p1020-memory-controller
40          - fsl,p1021-memory-controller
41          - fsl,p2020-memory-controller
42          - fsl,qoriq-memory-controller
43          - nxp,imx9-memory-controller
44
45  interrupts:
46    maxItems: 1
47
48  little-endian:
49    description:
50      Specifies little-endian access to registers. If omitted, big-endian will
51      be used.
52    type: boolean
53
54  reg:
55    items:
56      - description: Controller register space
57      - description: Inject register space
58    minItems: 1
59
60  reg-names:
61    items:
62      - const: ctrl
63      - const: inject
64    minItems: 1
65
66required:
67  - compatible
68  - interrupts
69  - reg
70
71allOf:
72  - if:
73      properties:
74        compatible:
75          contains:
76            enum:
77              - nxp,imx9-memory-controller
78    then:
79      properties:
80        reg:
81          minItems: 2
82        reg-names:
83          minItems: 2
84    else:
85      properties:
86        reg:
87          maxItems: 1
88        reg-names: false
89
90additionalProperties: false
91
92examples:
93  - |
94    memory-controller@2000 {
95        compatible = "fsl,bsc9132-memory-controller";
96        reg = <0x2000 0x1000>;
97        interrupts = <16 2 1 8>;
98    };
99
100  - |
101    memory-controller@8000 {
102        compatible = "fsl,qoriq-memory-controller-v4.7",
103                     "fsl,qoriq-memory-controller";
104        reg = <0x8000 0x1000>;
105        interrupts = <16 2 1 23>;
106    };
107