summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml
blob: 9c6eff7889282be7ad0f872cc650356379e57b3d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/nvmem/rockchip,otp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Rockchip internal OTP (One Time Programmable) memory

maintainers:
  - Heiko Stuebner <heiko@sntech.de>

properties:
  compatible:
    enum:
      - rockchip,px30-otp
      - rockchip,rk3308-otp
      - rockchip,rk3588-otp

  reg:
    maxItems: 1

  clocks:
    minItems: 3
    maxItems: 4

  clock-names:
    minItems: 3
    items:
      - const: otp
      - const: apb_pclk
      - const: phy
      - const: arb

  resets:
    minItems: 1
    maxItems: 3

  reset-names:
    minItems: 1
    maxItems: 3

required:
  - compatible
  - reg
  - clocks
  - clock-names
  - resets
  - reset-names

allOf:
  - $ref: nvmem.yaml#

  - if:
      properties:
        compatible:
          contains:
            enum:
              - rockchip,px30-otp
              - rockchip,rk3308-otp
    then:
      properties:
        clocks:
          maxItems: 3
        resets:
          maxItems: 1
        reset-names:
          items:
            - const: phy

  - if:
      properties:
        compatible:
          contains:
            enum:
              - rockchip,rk3588-otp
    then:
      properties:
        clocks:
          minItems: 4
        resets:
          minItems: 3
        reset-names:
          items:
            - const: otp
            - const: apb
            - const: arb

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/px30-cru.h>

    soc {
        #address-cells = <2>;
        #size-cells = <2>;

        otp: efuse@ff290000 {
            compatible = "rockchip,px30-otp";
            reg = <0x0 0xff290000 0x0 0x4000>;
            clocks = <&cru SCLK_OTP_USR>, <&cru PCLK_OTP_NS>,
                     <&cru PCLK_OTP_PHY>;
            clock-names = "otp", "apb_pclk", "phy";
            resets = <&cru SRST_OTP_PHY>;
            reset-names = "phy";
            #address-cells = <1>;
            #size-cells = <1>;

            cpu_id: id@7 {
                reg = <0x07 0x10>;
            };

            cpu_leakage: cpu-leakage@17 {
                reg = <0x17 0x1>;
            };

            performance: performance@1e {
                reg = <0x1e 0x1>;
                bits = <4 3>;
            };
        };
    };