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