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| -rw-r--r-- | Documentation/devicetree/bindings/nvmem/apple,efuses.yaml | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml b/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml new file mode 100644 index 000000000000..5ec8f2bdb3a5 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml @@ -0,0 +1,50 @@ +# 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>; + }; + }; + +... |