Commit 7177042b authored by Sven Peter's avatar Sven Peter Committed by Greg Kroah-Hartman
Browse files

dt-bindings: nvmem: Add apple,efuses 



Apple SoCs come with eFuses used to store factory-programmed data
such as calibration settings for the PCIe and Type-C PHY.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSven Peter <sven@svenpeter.dev>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-5-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8c240bd6

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

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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/nvmem/apple,efuses.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Apple SoC eFuse-based NVMEM



description: |

  Apple SoCs such as the M1 contain factory-programmed eFuses used to e.g. store

  calibration data for the PCIe and the Type-C PHY or unique chip identifiers

  such as the ECID.



maintainers:

  - Sven Peter <sven@svenpeter.dev>



allOf:

  - $ref: "nvmem.yaml#"



properties:

  compatible:

    items:

      - enum:

          - apple,t8103-efuses

          - apple,t6000-efuses

      - const: apple,efuses



  reg:

    maxItems: 1



required:

  - compatible

  - reg



unevaluatedProperties: false



examples:

  - |

    efuse@3d2bc000 {

        compatible = "apple,t8103-efuses", "apple,efuses";

        reg = <0x3d2bc000 0x1000>;

        #address-cells = <1>;

        #size-cells = <1>;



        ecid: efuse@500 {

            reg = <0x500 0x8>;

        };

    };



...