7177042bdd
Apple SoCs come with eFuses used to store factory-programmed data such as calibration settings for the PCIe and Type-C PHY. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sven Peter <sven@svenpeter.dev> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20220429162701.2222-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
51 lines
998 B
YAML
51 lines
998 B
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/nvmem/apple,efuses.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Apple SoC eFuse-based NVMEM
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description: |
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Apple SoCs such as the M1 contain factory-programmed eFuses used to e.g. store
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calibration data for the PCIe and the Type-C PHY or unique chip identifiers
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such as the ECID.
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maintainers:
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- Sven Peter <sven@svenpeter.dev>
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allOf:
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- $ref: "nvmem.yaml#"
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properties:
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compatible:
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items:
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- enum:
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- apple,t8103-efuses
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- apple,t6000-efuses
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- const: apple,efuses
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reg:
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maxItems: 1
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required:
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- compatible
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- reg
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unevaluatedProperties: false
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examples:
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- |
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efuse@3d2bc000 {
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compatible = "apple,t8103-efuses", "apple,efuses";
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reg = <0x3d2bc000 0x1000>;
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#address-cells = <1>;
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#size-cells = <1>;
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ecid: efuse@500 {
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reg = <0x500 0x8>;
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};
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};
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...
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