xref: /linux/Documentation/devicetree/bindings/fsi/fsi-controller.yaml (revision 6af91e3d2cfc8bb579b1aa2d22cd91f8c34acdf6) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/fsi/fsi-controller.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: FSI Controller Common Properties
8
9maintainers:
10  - Eddie James <eajames@linux.ibm.com>
11
12description:
13  FSI (FRU (Field Replaceable Unit) Service Interface) is a two wire bus. The
14  FSI bus is connected to a CFAM (Common FRU Access Macro) which contains
15  various engines such as I2C controllers, SPI controllers, etc.
16
17properties:
18  "#address-cells":
19    const: 2
20
21  "#size-cells":
22    const: 0
23
24  '#interrupt-cells':
25    const: 1
26
27  bus-frequency:
28    minimum: 1
29    maximum: 200000000
30
31  interrupt-controller: true
32
33  no-scan-on-init:
34    $ref: /schemas/types.yaml#/definitions/flag
35    description:
36      The FSI controller cannot scan the bus during initialization.
37
38patternProperties:
39  "cfam@[0-9a-f],[0-9a-f]":
40    type: object
41    properties:
42      chip-id:
43        $ref: /schemas/types.yaml#/definitions/uint32
44        description:
45          Processor index, a global unique chip ID which is used to identify
46          the physical location of the chip in a system specific way.
47
48      bus-frequency:
49        minimum: 1
50        maximum: 100000000
51
52      reg:
53        maxItems: 1
54
55      "#address-cells":
56        const: 1
57
58      "#size-cells":
59        const: 1
60
61    required:
62      - reg
63
64    additionalProperties: true
65
66additionalProperties: true
67