1 # SPDX-License-Identifier: GPL-2.0-only OR BSD 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/pinctrl/sop 4 $id: http://devicetree.org/schemas/pinctrl/sophgo,cv1800-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Sophgo CV1800 Pin Controller 7 title: Sophgo CV1800 Pin Controller
8 8
9 maintainers: 9 maintainers:
10 - Inochi Amaoto <inochiama@outlook.com> 10 - Inochi Amaoto <inochiama@outlook.com>
11 11
12 properties: 12 properties:
13 compatible: 13 compatible:
14 enum: 14 enum:
15 - sophgo,cv1800b-pinctrl 15 - sophgo,cv1800b-pinctrl
16 - sophgo,cv1812h-pinctrl 16 - sophgo,cv1812h-pinctrl
17 - sophgo,sg2000-pinctrl 17 - sophgo,sg2000-pinctrl
18 - sophgo,sg2002-pinctrl 18 - sophgo,sg2002-pinctrl
19 19
20 reg: 20 reg:
21 items: 21 items:
22 - description: pinctrl for system domain 22 - description: pinctrl for system domain
23 - description: pinctrl for rtc domain 23 - description: pinctrl for rtc domain
24 24
25 reg-names: 25 reg-names:
26 items: 26 items:
27 - const: sys 27 - const: sys
28 - const: rtc 28 - const: rtc
29 29
30 resets: 30 resets:
31 maxItems: 1 31 maxItems: 1
32 32
33 patternProperties: 33 patternProperties:
34 '-cfg$': 34 '-cfg$':
35 type: object 35 type: object
36 description: 36 description:
37 A pinctrl node should contain at least o 37 A pinctrl node should contain at least one subnode representing the
38 pinctrl groups available on the machine. 38 pinctrl groups available on the machine.
39 39
40 additionalProperties: false 40 additionalProperties: false
41 41
42 patternProperties: 42 patternProperties:
43 '-pins$': 43 '-pins$':
44 type: object 44 type: object
45 description: | 45 description: |
46 Each subnode will list the pins it n 46 Each subnode will list the pins it needs, and how they should
47 be configured, with regard to muxer 47 be configured, with regard to muxer configuration, bias, input
48 enable/disable, input schmitt trigge 48 enable/disable, input schmitt trigger, slew-rate, drive strength
49 and bus hold state. In addition, all 49 and bus hold state. In addition, all pins in the same subnode
50 should have the same power domain. F 50 should have the same power domain. For configuration detail,
51 refer to https://github.com/sophgo/s 51 refer to https://github.com/sophgo/sophgo-doc/.
52 52
53 allOf: 53 allOf:
54 - $ref: pincfg-node.yaml# 54 - $ref: pincfg-node.yaml#
55 - $ref: pinmux-node.yaml# 55 - $ref: pinmux-node.yaml#
56 56
57 properties: 57 properties:
58 pinmux: 58 pinmux:
59 description: | 59 description: |
60 The list of GPIOs and their mux 60 The list of GPIOs and their mux settings that properties in the
61 node apply to. This should be se 61 node apply to. This should be set using the GPIOMUX or GPIOMUX2
62 macro. 62 macro.
63 63
64 bias-pull-up: 64 bias-pull-up:
65 type: boolean 65 type: boolean
66 66
67 bias-pull-down: 67 bias-pull-down:
68 type: boolean 68 type: boolean
69 69
70 drive-strength-microamp: 70 drive-strength-microamp:
71 description: typical current when 71 description: typical current when output high level.
72 72
73 input-schmitt-microvolt: 73 input-schmitt-microvolt:
74 description: typical threshold for 74 description: typical threshold for schmitt trigger.
75 75
76 power-source: 76 power-source:
77 description: power supplies at X m 77 description: power supplies at X mV.
78 enum: [ 1800, 3300 ] 78 enum: [ 1800, 3300 ]
79 79
80 slew-rate: 80 slew-rate:
81 description: slew rate for output 81 description: slew rate for output buffer (0 is fast, 1 is slow)
82 enum: [ 0, 1 ] 82 enum: [ 0, 1 ]
83 83
84 bias-bus-hold: true 84 bias-bus-hold: true
85 85
86 required: 86 required:
87 - pinmux 87 - pinmux
88 - power-source 88 - power-source
89 89
90 additionalProperties: false 90 additionalProperties: false
91 91
92 required: 92 required:
93 - compatible 93 - compatible
94 - reg 94 - reg
95 - reg-names 95 - reg-names
96 96
97 additionalProperties: false 97 additionalProperties: false
98 98
99 examples: 99 examples:
100 - | 100 - |
101 #include <dt-bindings/pinctrl/pinctrl-cv18 101 #include <dt-bindings/pinctrl/pinctrl-cv1800b.h>
102 102
103 pinctrl@3001000 { 103 pinctrl@3001000 {
104 compatible = "sophgo,cv1800b-pinctrl"; 104 compatible = "sophgo,cv1800b-pinctrl";
105 reg = <0x03001000 0x1000>, 105 reg = <0x03001000 0x1000>,
106 <0x05027000 0x1000>; 106 <0x05027000 0x1000>;
107 reg-names = "sys", "rtc"; 107 reg-names = "sys", "rtc";
108 108
109 uart0_cfg: uart0-cfg { 109 uart0_cfg: uart0-cfg {
110 uart0-pins { 110 uart0-pins {
111 pinmux = <PINMUX(PIN_UART0_TX, 111 pinmux = <PINMUX(PIN_UART0_TX, 0)>,
112 <PINMUX(PIN_UART0_RX, 112 <PINMUX(PIN_UART0_RX, 0)>;
113 bias-pull-up; 113 bias-pull-up;
114 drive-strength-microamp = <108 114 drive-strength-microamp = <10800>;
115 input-schmitt-microvolt = <0>; 115 input-schmitt-microvolt = <0>;
116 power-source = <3300>; 116 power-source = <3300>;
117 slew-rate = <0>; 117 slew-rate = <0>;
118 }; 118 };
119 }; 119 };
120 }; 120 };
121 121
122 ... 122 ...
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