xref: /freebsd/sys/contrib/device-tree/Bindings/i2c/cdns,i2c-r1p10.yaml (revision 02e9120893770924227138ba49df1edb3896112a) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/i2c/cdns,i2c-r1p10.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Cadence I2C controller
8
9maintainers:
10  - Michal Simek <michal.simek@xilinx.com>
11
12allOf:
13  - $ref: /schemas/i2c/i2c-controller.yaml#
14
15properties:
16  compatible:
17    enum:
18      - cdns,i2c-r1p10 # cadence i2c controller version 1.0
19      - cdns,i2c-r1p14 # cadence i2c controller version 1.4
20
21  reg:
22    maxItems: 1
23
24  clocks:
25    minItems: 1
26
27  resets:
28    maxItems: 1
29
30  interrupts:
31    maxItems: 1
32
33  clock-frequency:
34    minimum: 1
35    maximum: 400000
36    description: |
37      Desired operating frequency, in Hz, of the bus.
38
39  clock-name:
40    const: pclk
41    description: |
42      Input clock name.
43
44  fifo-depth:
45    description:
46      Size of the data FIFO in bytes.
47    $ref: /schemas/types.yaml#/definitions/uint32
48    default: 16
49    enum: [2, 4, 8, 16, 32, 64, 128, 256]
50
51required:
52  - compatible
53  - reg
54  - clocks
55  - interrupts
56
57unevaluatedProperties: false
58
59examples:
60  - |
61    #include <dt-bindings/interrupt-controller/arm-gic.h>
62    i2c@e0004000 {
63        compatible = "cdns,i2c-r1p10";
64        clocks = <&clkc 38>;
65        resets = <&rstc 288>;
66        interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
67        reg = <0xe0004000 0x1000>;
68        clock-frequency = <400000>;
69        #address-cells = <1>;
70        #size-cells = <0>;
71        fifo-depth = <8>;
72    };
73