Documentation/devicetree/bindings/nvmem/imx-ocotp.yaml

   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
   7 title: Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings
   8
   9 maintainers:
  10   - Anson Huang <Anson.Huang@nxp.com>
  11
  12 description: |
  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
  17 allOf:
  18   - $ref: "nvmem.yaml#"
  19
  20 properties:
  21   compatible:
  22     oneOf:
  23       - items:
  24           - enum:
  25               - fsl,imx6q-ocotp
  26               - fsl,imx6sl-ocotp
  27               - fsl,imx6sx-ocotp
  28               - fsl,imx6ul-ocotp
  29               - fsl,imx6ull-ocotp
  30               - fsl,imx7d-ocotp
  31               - fsl,imx6sll-ocotp
  32               - fsl,imx7ulp-ocotp
  33               - fsl,imx8mq-ocotp
  34               - fsl,imx8mm-ocotp
  35           - const: syscon
  36       - items:
  37           - enum:
  38               - fsl,imx8mn-ocotp
  39               # i.MX8MP not really compatible with fsl,imx8mm-ocotp, however
  40               # the code for getting SoC revision depends on fsl,imx8mm-ocotp
  41               # compatible.
  42               - fsl,imx8mp-ocotp
  43           - const: fsl,imx8mm-ocotp
  44           - const: syscon
  45
  46   reg:
  47     maxItems: 1
  48
  49   "#address-cells":
  50     const: 1
  51
  52   "#size-cells":
  53     const: 1
  54
  55   clocks:
  56     maxItems: 1
  57
  58 required:
  59   - "#address-cells"
  60   - "#size-cells"
  61   - compatible
  62   - reg
  63
  64 patternProperties:
  65   "^.*@[0-9a-f]+$":
  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
  79 unevaluatedProperties: false
  80
  81 examples:
  82   - |
  83     #include <dt-bindings/clock/imx6sx-clock.h>
  84
  85     ocotp: efuse@21bc000 {
  86         #address-cells = <1>;
  87         #size-cells = <1>;
  88         compatible = "fsl,imx6sx-ocotp", "syscon";
  89         reg = <0x021bc000 0x4000>;
  90         clocks = <&clks IMX6SX_CLK_OCOTP>;
  91
  92         cpu_speed_grade: speed-grade@10 {
  93             reg = <0x10 4>;
  94         };
  95
  96         tempmon_calib: calib@38 {
  97             reg = <0x38 4>;
  98         };
  99
 100         tempmon_temp_grade: temp-grade@20 {
 101             reg = <0x20 4>;
 102         };
 103     };
 104
 105 ...