rockchip,otp.yaml

  1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/nvmem/rockchip,otp.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Rockchip internal OTP (One Time Programmable) memory
  8
  9maintainers:
 10  - Heiko Stuebner <heiko@sntech.de>
 11
 12properties:
 13  compatible:
 14    enum:
 15      - rockchip,px30-otp
 16      - rockchip,rk3308-otp
 17      - rockchip,rk3576-otp
 18      - rockchip,rk3588-otp
 19
 20  reg:
 21    maxItems: 1
 22
 23  clocks:
 24    minItems: 3
 25    maxItems: 4
 26
 27  clock-names:
 28    minItems: 3
 29    items:
 30      - const: otp
 31      - const: apb_pclk
 32      - const: phy
 33      - const: arb
 34
 35  resets:
 36    minItems: 1
 37    maxItems: 3
 38
 39  reset-names:
 40    minItems: 1
 41    maxItems: 3
 42
 43required:
 44  - compatible
 45  - reg
 46  - clocks
 47  - clock-names
 48  - resets
 49  - reset-names
 50
 51allOf:
 52  - $ref: nvmem.yaml#
 53  - $ref: nvmem-deprecated-cells.yaml#
 54
 55  - if:
 56      properties:
 57        compatible:
 58          contains:
 59            enum:
 60              - rockchip,px30-otp
 61              - rockchip,rk3308-otp
 62    then:
 63      properties:
 64        clocks:
 65          maxItems: 3
 66        clock-names:
 67          maxItems: 3
 68        resets:
 69          maxItems: 1
 70        reset-names:
 71          items:
 72            - const: phy
 73
 74  - if:
 75      properties:
 76        compatible:
 77          contains:
 78            enum:
 79              - rockchip,rk3576-otp
 80    then:
 81      properties:
 82        clocks:
 83          maxItems: 3
 84        clock-names:
 85          maxItems: 3
 86        resets:
 87          minItems: 2
 88          maxItems: 2
 89        reset-names:
 90          items:
 91            - const: otp
 92            - const: apb
 93
 94  - if:
 95      properties:
 96        compatible:
 97          contains:
 98            enum:
 99              - rockchip,rk3588-otp
100    then:
101      properties:
102        clocks:
103          minItems: 4
104        clock-names:
105          minItems: 4
106        resets:
107          minItems: 3
108        reset-names:
109          items:
110            - const: otp
111            - const: apb
112            - const: arb
113
114unevaluatedProperties: false
115
116examples:
117  - |
118    #include <dt-bindings/clock/px30-cru.h>
119
120    soc {
121        #address-cells = <2>;
122        #size-cells = <2>;
123
124        otp: efuse@ff290000 {
125            compatible = "rockchip,px30-otp";
126            reg = <0x0 0xff290000 0x0 0x4000>;
127            clocks = <&cru SCLK_OTP_USR>, <&cru PCLK_OTP_NS>,
128                     <&cru PCLK_OTP_PHY>;
129            clock-names = "otp", "apb_pclk", "phy";
130            resets = <&cru SRST_OTP_PHY>;
131            reset-names = "phy";
132            #address-cells = <1>;
133            #size-cells = <1>;
134
135            cpu_id: id@7 {
136                reg = <0x07 0x10>;
137            };
138
139            cpu_leakage: cpu-leakage@17 {
140                reg = <0x17 0x1>;
141            };
142
143            performance: performance@1e {
144                reg = <0x1e 0x1>;
145                bits = <4 3>;
146            };
147        };
148    };