xref: /freebsd/sys/contrib/device-tree/Bindings/nvmem/apple,efuses.yaml (revision d5b0e70f7e04d971691517ce1304d86a1e367e2e)
1*d5b0e70fSEmmanuel Vadot# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2*d5b0e70fSEmmanuel Vadot%YAML 1.2
3*d5b0e70fSEmmanuel Vadot---
4*d5b0e70fSEmmanuel Vadot$id: http://devicetree.org/schemas/nvmem/apple,efuses.yaml#
5*d5b0e70fSEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml#
6*d5b0e70fSEmmanuel Vadot
7*d5b0e70fSEmmanuel Vadottitle: Apple SoC eFuse-based NVMEM
8*d5b0e70fSEmmanuel Vadot
9*d5b0e70fSEmmanuel Vadotdescription: |
10*d5b0e70fSEmmanuel Vadot  Apple SoCs such as the M1 contain factory-programmed eFuses used to e.g. store
11*d5b0e70fSEmmanuel Vadot  calibration data for the PCIe and the Type-C PHY or unique chip identifiers
12*d5b0e70fSEmmanuel Vadot  such as the ECID.
13*d5b0e70fSEmmanuel Vadot
14*d5b0e70fSEmmanuel Vadotmaintainers:
15*d5b0e70fSEmmanuel Vadot  - Sven Peter <sven@svenpeter.dev>
16*d5b0e70fSEmmanuel Vadot
17*d5b0e70fSEmmanuel VadotallOf:
18*d5b0e70fSEmmanuel Vadot  - $ref: "nvmem.yaml#"
19*d5b0e70fSEmmanuel Vadot
20*d5b0e70fSEmmanuel Vadotproperties:
21*d5b0e70fSEmmanuel Vadot  compatible:
22*d5b0e70fSEmmanuel Vadot    items:
23*d5b0e70fSEmmanuel Vadot      - enum:
24*d5b0e70fSEmmanuel Vadot          - apple,t8103-efuses
25*d5b0e70fSEmmanuel Vadot          - apple,t6000-efuses
26*d5b0e70fSEmmanuel Vadot      - const: apple,efuses
27*d5b0e70fSEmmanuel Vadot
28*d5b0e70fSEmmanuel Vadot  reg:
29*d5b0e70fSEmmanuel Vadot    maxItems: 1
30*d5b0e70fSEmmanuel Vadot
31*d5b0e70fSEmmanuel Vadotrequired:
32*d5b0e70fSEmmanuel Vadot  - compatible
33*d5b0e70fSEmmanuel Vadot  - reg
34*d5b0e70fSEmmanuel Vadot
35*d5b0e70fSEmmanuel VadotunevaluatedProperties: false
36*d5b0e70fSEmmanuel Vadot
37*d5b0e70fSEmmanuel Vadotexamples:
38*d5b0e70fSEmmanuel Vadot  - |
39*d5b0e70fSEmmanuel Vadot    efuse@3d2bc000 {
40*d5b0e70fSEmmanuel Vadot        compatible = "apple,t8103-efuses", "apple,efuses";
41*d5b0e70fSEmmanuel Vadot        reg = <0x3d2bc000 0x1000>;
42*d5b0e70fSEmmanuel Vadot        #address-cells = <1>;
43*d5b0e70fSEmmanuel Vadot        #size-cells = <1>;
44*d5b0e70fSEmmanuel Vadot
45*d5b0e70fSEmmanuel Vadot        ecid: efuse@500 {
46*d5b0e70fSEmmanuel Vadot            reg = <0x500 0x8>;
47*d5b0e70fSEmmanuel Vadot        };
48*d5b0e70fSEmmanuel Vadot    };
49*d5b0e70fSEmmanuel Vadot
50*d5b0e70fSEmmanuel Vadot...
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