xref: /freebsd/sys/contrib/device-tree/Bindings/nvmem/fsl,layerscape-sfp.yaml (revision fac71e4e09885bb2afa3d984a0c239a52e1a7418) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/nvmem/fsl,layerscape-sfp.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale Layerscape Security Fuse Processor
8
9maintainers:
10  - Michael Walle <michael@walle.cc>
11
12description: |
13  SFP is the security fuse processor which among other things provides a
14  unique identifier per part.
15
16allOf:
17  - $ref: nvmem.yaml#
18
19properties:
20  compatible:
21    oneOf:
22      - description: Trust architecture 2.1 SFP
23        items:
24          - const: fsl,ls1021a-sfp
25      - description: Trust architecture 3.0 SFP
26        items:
27          - const: fsl,ls1028a-sfp
28
29  reg:
30    maxItems: 1
31
32  clocks:
33    maxItems: 1
34    description:
35      The SFP clock. Typically, this is the platform clock divided by 4.
36
37  clock-names:
38    const: sfp
39
40  ta-prog-sfp-supply:
41    description:
42      The regulator for the TA_PROG_SFP pin. It will be enabled for programming
43      and disabled for reading.
44
45required:
46  - compatible
47  - reg
48  - clock-names
49  - clocks
50
51unevaluatedProperties: false
52
53examples:
54  - |
55    #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
56    efuse@1e80000 {
57        compatible = "fsl,ls1028a-sfp";
58        reg = <0x1e80000 0x8000>;
59        clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
60                            QORIQ_CLK_PLL_DIV(4)>;
61        clock-names = "sfp";
62    };
63