1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/mfd/delta,t 4 $id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Delta Networks TN48M CPLD controller 7 title: Delta Networks TN48M CPLD controller
8 8
9 maintainers: 9 maintainers:
10 - Robert Marko <robert.marko@sartura.hr> 10 - Robert Marko <robert.marko@sartura.hr>
11 11
12 description: | 12 description: |
13 Lattice CPLD onboard the TN48M switches is u 13 Lattice CPLD onboard the TN48M switches is used for system
14 management. 14 management.
15 15
16 It provides information about the hardware m 16 It provides information about the hardware model, revision,
17 PSU status etc. 17 PSU status etc.
18 18
19 It is also being used as a GPIO expander and 19 It is also being used as a GPIO expander and reset controller
20 for the switch MAC-s and other peripherals. 20 for the switch MAC-s and other peripherals.
21 21
22 properties: 22 properties:
23 compatible: 23 compatible:
24 const: delta,tn48m-cpld 24 const: delta,tn48m-cpld
25 25
26 reg: 26 reg:
27 description: 27 description:
28 I2C device address. 28 I2C device address.
29 maxItems: 1 29 maxItems: 1
30 30
31 "#address-cells": 31 "#address-cells":
32 const: 1 32 const: 1
33 33
34 "#size-cells": 34 "#size-cells":
35 const: 0 35 const: 0
36 36
37 required: 37 required:
38 - compatible 38 - compatible
39 - reg 39 - reg
40 - "#address-cells" 40 - "#address-cells"
41 - "#size-cells" 41 - "#size-cells"
42 42
43 patternProperties: 43 patternProperties:
44 "^gpio(@[0-9a-f]+)?$": 44 "^gpio(@[0-9a-f]+)?$":
45 $ref: /schemas/gpio/delta,tn48m-gpio.yaml 45 $ref: /schemas/gpio/delta,tn48m-gpio.yaml
46 46
47 "^reset-controller?$": 47 "^reset-controller?$":
48 $ref: /schemas/reset/delta,tn48m-reset.yam 48 $ref: /schemas/reset/delta,tn48m-reset.yaml
49 49
50 additionalProperties: false 50 additionalProperties: false
51 51
52 examples: 52 examples:
53 - | 53 - |
54 i2c { 54 i2c {
55 #address-cells = <1>; 55 #address-cells = <1>;
56 #size-cells = <0>; 56 #size-cells = <0>;
57 57
58 cpld@41 { 58 cpld@41 {
59 compatible = "delta,tn48m-cpld"; 59 compatible = "delta,tn48m-cpld";
60 reg = <0x41>; 60 reg = <0x41>;
61 #address-cells = <1>; 61 #address-cells = <1>;
62 #size-cells = <0>; 62 #size-cells = <0>;
63 63
64 gpio@31 { 64 gpio@31 {
65 compatible = "delta,tn48m-gpo" 65 compatible = "delta,tn48m-gpo";
66 reg = <0x31>; 66 reg = <0x31>;
67 gpio-controller; 67 gpio-controller;
68 #gpio-cells = <2>; 68 #gpio-cells = <2>;
69 }; 69 };
70 70
71 gpio@3a { 71 gpio@3a {
72 compatible = "delta,tn48m-gpi" 72 compatible = "delta,tn48m-gpi";
73 reg = <0x3a>; 73 reg = <0x3a>;
74 gpio-controller; 74 gpio-controller;
75 #gpio-cells = <2>; 75 #gpio-cells = <2>;
76 }; 76 };
77 77
78 gpio@40 { 78 gpio@40 {
79 compatible = "delta,tn48m-gpi" 79 compatible = "delta,tn48m-gpi";
80 reg = <0x40>; 80 reg = <0x40>;
81 gpio-controller; 81 gpio-controller;
82 #gpio-cells = <2>; 82 #gpio-cells = <2>;
83 }; 83 };
84 84
85 reset-controller { 85 reset-controller {
86 compatible = "delta,tn48m-reset" 86 compatible = "delta,tn48m-reset";
87 #reset-cells = <1>; 87 #reset-cells = <1>;
88 }; 88 };
89 }; 89 };
90 }; 90 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.