xref: /linux/Documentation/devicetree/bindings/spi/spi-cadence.yaml (revision ed7171ff9fabc49ae6ed42fbd082a576473836fc) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/spi-cadence.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Cadence SPI controller
8
9maintainers:
10  - Michal Simek <michal.simek@amd.com>
11
12allOf:
13  - $ref: spi-controller.yaml#
14
15properties:
16  compatible:
17    enum:
18      - cdns,spi-r1p6
19      - xlnx,zynq-spi-r1p6
20
21  reg:
22    maxItems: 1
23
24  interrupts:
25    maxItems: 1
26
27  clock-names:
28    items:
29      - const: ref_clk
30      - const: pclk
31
32  clocks:
33    maxItems: 2
34
35  num-cs:
36    description: |
37      Number of chip selects used. If a decoder is used,
38      this will be the number of chip selects after the
39      decoder.
40    $ref: /schemas/types.yaml#/definitions/uint32
41    minimum: 1
42    maximum: 4
43    default: 4
44
45  is-decoded-cs:
46    description: |
47      Flag to indicate whether decoder is used or not.
48    $ref: /schemas/types.yaml#/definitions/uint32
49    enum: [ 0, 1 ]
50    default: 0
51
52  power-domains:
53    maxItems: 1
54
55  label:
56    description: Descriptive name of the SPI controller.
57
58  resets:
59    maxItems: 1
60
61  reset-names:
62    items:
63      - const: spi
64
65required:
66  - compatible
67  - reg
68  - interrupts
69  - clock-names
70  - clocks
71
72unevaluatedProperties: false
73
74examples:
75  - |
76    spi@e0007000 {
77      compatible = "xlnx,zynq-spi-r1p6";
78      clock-names = "ref_clk", "pclk";
79      clocks = <&clkc 26>, <&clkc 35>;
80      interrupt-parent = <&intc>;
81      interrupts = <0 49 4>;
82      num-cs = <4>;
83      is-decoded-cs = <0>;
84      reg = <0xe0007000 0x1000>;
85    };
86...
87