xref: /linux/Documentation/devicetree/bindings/mfd/realtek,rtl9301-switch.yaml (revision c34e9ab9a612ee8b18273398ef75c207b01f516d) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mfd/realtek,rtl9301-switch.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Realtek Switch with Internal CPU
8
9maintainers:
10  - Chris Packham <chris.packham@alliedtelesis.co.nz>
11
12description:
13  The RTL9300 is a series of is an Ethernet switches with an integrated CPU. A
14  number of different peripherals are accessed through a common register block,
15  represented here as a syscon node.
16
17properties:
18  compatible:
19    items:
20      - enum:
21          - realtek,rtl9301-switch
22          - realtek,rtl9302b-switch
23          - realtek,rtl9302c-switch
24          - realtek,rtl9303-switch
25      - const: syscon
26      - const: simple-mfd
27
28  reg:
29    maxItems: 1
30
31  '#address-cells':
32    const: 1
33
34  '#size-cells':
35    const: 1
36
37patternProperties:
38  'reboot@[0-9a-f]+$':
39    $ref: /schemas/power/reset/syscon-reboot.yaml#
40
41  'i2c@[0-9a-f]+$':
42    $ref: /schemas/i2c/realtek,rtl9301-i2c.yaml#
43
44required:
45  - compatible
46  - reg
47
48additionalProperties: false
49
50examples:
51  - |
52    ethernet-switch@1b000000 {
53      compatible = "realtek,rtl9301-switch", "syscon", "simple-mfd";
54      reg = <0x1b000000 0x10000>;
55      #address-cells = <1>;
56      #size-cells = <1>;
57
58      reboot@c {
59        compatible = "syscon-reboot";
60        reg = <0x0c 0x4>;
61        value = <0x01>;
62      };
63
64      i2c@36c {
65        compatible = "realtek,rtl9301-i2c";
66        reg = <0x36c 0x14>;
67        #address-cells = <1>;
68        #size-cells = <0>;
69
70        i2c@0 {
71          reg = <0>;
72          #address-cells = <1>;
73          #size-cells = <0>;
74          gpio@20 {
75            compatible = "nxp,pca9555";
76            gpio-controller;
77            #gpio-cells = <2>;
78            reg = <0x20>;
79          };
80        };
81
82        i2c@2 {
83          reg = <2>;
84          #address-cells = <1>;
85          #size-cells = <0>;
86          gpio@20 {
87            compatible = "nxp,pca9555";
88            gpio-controller;
89            #gpio-cells = <2>;
90            reg = <0x20>;
91          };
92        };
93      };
94
95      i2c@388 {
96        compatible = "realtek,rtl9301-i2c";
97        reg = <0x388 0x14>;
98        #address-cells = <1>;
99        #size-cells = <0>;
100
101        i2c@7 {
102          reg = <7>;
103          #address-cells = <1>;
104          #size-cells = <0>;
105          gpio@20 {
106            compatible = "nxp,pca9555";
107            gpio-controller;
108            #gpio-cells = <2>;
109            reg = <0x20>;
110          };
111        };
112      };
113    };
114
115