Documentation/devicetree/bindings/nvmem/apple,efuses.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/nvmem/apple,efuses.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Apple SoC eFuse-based NVMEM
   8
   9 description: |
  10   Apple SoCs such as the M1 contain factory-programmed eFuses used to e.g. store
  11   calibration data for the PCIe and the Type-C PHY or unique chip identifiers
  12   such as the ECID.
  13
  14 maintainers:
  15   - Sven Peter <sven@svenpeter.dev>
  16
  17 allOf:
  18   - $ref: nvmem.yaml#
  19   - $ref: nvmem-deprecated-cells.yaml#
  20
  21 properties:
  22   compatible:
  23     items:
  24       - enum:
  25           - apple,t8103-efuses
  26           - apple,t6000-efuses
  27       - const: apple,efuses
  28
  29   reg:
  30     maxItems: 1
  31
  32 required:
  33   - compatible
  34   - reg
  35
  36 unevaluatedProperties: false
  37
  38 examples:
  39   - |
  40     efuse@3d2bc000 {
  41         compatible = "apple,t8103-efuses", "apple,efuses";
  42         reg = <0x3d2bc000 0x1000>;
  43         #address-cells = <1>;
  44         #size-cells = <1>;
  45
  46         ecid: efuse@500 {
  47             reg = <0x500 0x8>;
  48         };
  49     };
  50
  51 ...