xref: /linux/Documentation/devicetree/bindings/nvmem/imx-ocotp.yaml (revision df3682987d1933a4bad3229d27f26bef2557a0de) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/nvmem/imx-ocotp.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings
8
9maintainers:
10  - Anson Huang <Anson.Huang@nxp.com>
11
12description: |
13  This binding represents the on-chip eFuse OTP controller found on
14  i.MX6Q/D, i.MX6DL/S, i.MX6SL, i.MX6SX, i.MX6UL, i.MX6ULL/ULZ, i.MX6SLL,
15  i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.
16
17allOf:
18  - $ref: "nvmem.yaml#"
19
20properties:
21  compatible:
22    oneOf:
23      - items:
24          - enum:
25              - fsl,imx6q-ocotp
26              - fsl,imx6sl-ocotp
27              - fsl,imx6sx-ocotp
28              - fsl,imx6ul-ocotp
29              - fsl,imx6ull-ocotp
30              - fsl,imx7d-ocotp
31              - fsl,imx6sll-ocotp
32              - fsl,imx7ulp-ocotp
33              - fsl,imx8mq-ocotp
34              - fsl,imx8mm-ocotp
35          - const: syscon
36      - items:
37          - enum:
38              - fsl,imx8mn-ocotp
39              # i.MX8MP not really compatible with fsl,imx8mm-ocotp, however
40              # the code for getting SoC revision depends on fsl,imx8mm-ocotp
41              # compatible.
42              - fsl,imx8mp-ocotp
43          - const: fsl,imx8mm-ocotp
44          - const: syscon
45
46  reg:
47    maxItems: 1
48
49  "#address-cells":
50    const: 1
51
52  "#size-cells":
53    const: 1
54
55  clocks:
56    maxItems: 1
57
58required:
59  - "#address-cells"
60  - "#size-cells"
61  - compatible
62  - reg
63
64patternProperties:
65  "^.*@[0-9a-f]+$":
66    type: object
67
68    properties:
69      reg:
70        maxItems: 1
71        description:
72          Offset and size in bytes within the storage device.
73
74    required:
75      - reg
76
77    additionalProperties: false
78
79examples:
80  - |
81    #include <dt-bindings/clock/imx6sx-clock.h>
82
83    ocotp: efuse@21bc000 {
84        #address-cells = <1>;
85        #size-cells = <1>;
86        compatible = "fsl,imx6sx-ocotp", "syscon";
87        reg = <0x021bc000 0x4000>;
88        clocks = <&clks IMX6SX_CLK_OCOTP>;
89
90        cpu_speed_grade: speed-grade@10 {
91            reg = <0x10 4>;
92        };
93
94        tempmon_calib: calib@38 {
95            reg = <0x38 4>;
96        };
97
98        tempmon_temp_grade: temp-grade@20 {
99            reg = <0x20 4>;
100        };
101    };
102
103...
104