0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/nvmem/fsl,layerscape-sfp.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Freescale Layerscape Security Fuse Processor
0008
0009 maintainers:
0010 - Michael Walle <michael@walle.cc>
0011
0012 description: |
0013 SFP is the security fuse processor which among other things provides a
0014 unique identifier per part.
0015
0016 allOf:
0017 - $ref: "nvmem.yaml#"
0018
0019 properties:
0020 compatible:
0021 oneOf:
0022 - description: Trust architecture 2.1 SFP
0023 items:
0024 - const: fsl,ls1021a-sfp
0025 - description: Trust architecture 3.0 SFP
0026 items:
0027 - const: fsl,ls1028a-sfp
0028
0029 reg:
0030 maxItems: 1
0031
0032 clocks:
0033 maxItems: 1
0034 description:
0035 The SFP clock. Typically, this is the platform clock divided by 4.
0036
0037 clock-names:
0038 const: sfp
0039
0040 ta-prog-sfp-supply:
0041 description:
0042 The regulator for the TA_PROG_SFP pin. It will be enabled for programming
0043 and disabled for reading.
0044
0045 required:
0046 - compatible
0047 - reg
0048 - clock-names
0049 - clocks
0050
0051 unevaluatedProperties: false
0052
0053 examples:
0054 - |
0055 #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
0056 efuse@1e80000 {
0057 compatible = "fsl,ls1028a-sfp";
0058 reg = <0x1e80000 0x8000>;
0059 clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
0060 QORIQ_CLK_PLL_DIV(4)>;
0061 clock-names = "sfp";
0062 };
