1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/rtc/allwinn 4 $id: http://devicetree.org/schemas/rtc/allwinner,sun6i-a31-rtc.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Allwinner A31 RTC !! 7 title: Allwinner A31 RTC Device Tree Bindings
8 8
9 maintainers: 9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org> 10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org> 11 - Maxime Ripard <mripard@kernel.org>
12 12
13 properties: 13 properties:
14 "#clock-cells": 14 "#clock-cells":
15 const: 1 15 const: 1
16 16
17 compatible: 17 compatible:
18 oneOf: 18 oneOf:
19 - enum: !! 19 - const: allwinner,sun6i-a31-rtc
20 - allwinner,sun6i-a31-rtc !! 20 - const: allwinner,sun8i-a23-rtc
21 - allwinner,sun8i-a23-rtc !! 21 - const: allwinner,sun8i-h3-rtc
22 - allwinner,sun8i-h3-rtc !! 22 - const: allwinner,sun8i-r40-rtc
23 - allwinner,sun8i-r40-rtc !! 23 - const: allwinner,sun8i-v3-rtc
24 - allwinner,sun8i-v3-rtc !! 24 - const: allwinner,sun50i-h5-rtc
25 - allwinner,sun50i-h5-rtc <<
26 - allwinner,sun50i-h6-rtc <<
27 - allwinner,sun50i-h616-rtc <<
28 - allwinner,sun50i-r329-rtc <<
29 - items: 25 - items:
30 - const: allwinner,sun50i-a64-rtc 26 - const: allwinner,sun50i-a64-rtc
31 - const: allwinner,sun8i-h3-rtc 27 - const: allwinner,sun8i-h3-rtc
32 - items: !! 28 - const: allwinner,sun50i-h6-rtc
33 - const: allwinner,sun20i-d1-rtc <<
34 - const: allwinner,sun50i-r329-rtc <<
35 29
36 reg: 30 reg:
37 maxItems: 1 31 maxItems: 1
38 32
39 interrupts: 33 interrupts:
40 minItems: 1 34 minItems: 1
41 items: 35 items:
42 - description: RTC Alarm 0 36 - description: RTC Alarm 0
43 - description: RTC Alarm 1 37 - description: RTC Alarm 1
44 38
45 clocks: 39 clocks:
46 minItems: 1 !! 40 maxItems: 1
47 maxItems: 4 <<
48 <<
49 clock-names: <<
50 minItems: 1 <<
51 maxItems: 4 <<
52 41
53 clock-output-names: 42 clock-output-names:
54 minItems: 1 43 minItems: 1
55 maxItems: 3 44 maxItems: 3
56 description: 45 description:
57 The RTC provides up to three clocks 46 The RTC provides up to three clocks
58 - the Low Frequency Oscillator or LOSC 47 - the Low Frequency Oscillator or LOSC, at index 0,
59 - the Low Frequency Oscillator Externa 48 - the Low Frequency Oscillator External output (X32KFOUT in
60 the datasheet), at index 1, 49 the datasheet), at index 1,
61 - the Internal Oscillator, at index 2. 50 - the Internal Oscillator, at index 2.
62 51
63 allOf: 52 allOf:
64 - $ref: rtc.yaml# !! 53 - $ref: "rtc.yaml#"
65 - if: 54 - if:
66 properties: 55 properties:
67 compatible: 56 compatible:
68 contains: 57 contains:
69 const: allwinner,sun6i-a31-rtc 58 const: allwinner,sun6i-a31-rtc
70 59
71 then: 60 then:
72 properties: 61 properties:
73 clock-output-names: 62 clock-output-names:
>> 63 minItems: 1
74 maxItems: 1 64 maxItems: 1
75 65
76 - if: 66 - if:
77 properties: 67 properties:
78 compatible: 68 compatible:
79 contains: 69 contains:
80 enum: 70 enum:
81 - allwinner,sun8i-a23-rtc 71 - allwinner,sun8i-a23-rtc
82 - allwinner,sun8i-r40-rtc 72 - allwinner,sun8i-r40-rtc
83 - allwinner,sun8i-v3-rtc 73 - allwinner,sun8i-v3-rtc
84 74
85 then: 75 then:
86 properties: 76 properties:
87 clock-output-names: 77 clock-output-names:
88 minItems: 2 78 minItems: 2
89 maxItems: 2 79 maxItems: 2
90 80
91 - if: 81 - if:
92 properties: 82 properties:
93 compatible: 83 compatible:
94 contains: 84 contains:
95 enum: 85 enum:
96 - allwinner,sun8i-h3-rtc 86 - allwinner,sun8i-h3-rtc
97 - allwinner,sun50i-h5-rtc 87 - allwinner,sun50i-h5-rtc
98 - allwinner,sun50i-h6-rtc <<
99 88
100 then: 89 then:
101 properties: 90 properties:
102 clock-output-names: 91 clock-output-names:
103 minItems: 3 92 minItems: 3
>> 93 maxItems: 3
104 94
105 - if: 95 - if:
106 properties: 96 properties:
107 compatible: 97 compatible:
108 contains: 98 contains:
109 const: allwinner,sun50i-h616-rtc !! 99 const: allwinner,sun50i-h6-rtc
110 100
111 then: 101 then:
112 properties: 102 properties:
113 clocks: !! 103 clock-output-names:
114 items: <<
115 - description: Bus clock for regis <<
116 - description: 24 MHz oscillator <<
117 - description: 32 kHz clock from t <<
118 <<
119 clock-names: <<
120 items: <<
121 - const: bus <<
122 - const: hosc <<
123 - const: pll-32k <<
124 <<
125 required: <<
126 - clocks <<
127 - clock-names <<
128 <<
129 - if: <<
130 properties: <<
131 compatible: <<
132 contains: <<
133 const: allwinner,sun50i-r329-rtc <<
134 <<
135 then: <<
136 properties: <<
137 clocks: <<
138 minItems: 3 <<
139 items: <<
140 - description: Bus clock for regis <<
141 - description: 24 MHz oscillator <<
142 - description: AHB parent for inte <<
143 - description: External 32768 Hz o <<
144 <<
145 clock-names: <<
146 minItems: 3 104 minItems: 3
147 items: !! 105 maxItems: 3
148 - const: bus <<
149 - const: hosc <<
150 - const: ahb <<
151 - const: ext-osc32k <<
152 <<
153 required: <<
154 - clocks <<
155 - clock-names <<
156 106
157 - if: 107 - if:
158 properties: 108 properties:
159 compatible: 109 compatible:
160 contains: 110 contains:
161 enum: !! 111 const: allwinner,sun8i-r40-rtc
162 - allwinner,sun8i-r40-rtc <<
163 - allwinner,sun50i-h616-rtc <<
164 - allwinner,sun50i-r329-rtc <<
165 112
166 then: 113 then:
167 properties: 114 properties:
168 interrupts: 115 interrupts:
>> 116 minItems: 1
169 maxItems: 1 117 maxItems: 1
170 118
171 else: 119 else:
172 properties: 120 properties:
173 interrupts: 121 interrupts:
174 minItems: 2 122 minItems: 2
>> 123 maxItems: 2
175 124
176 required: 125 required:
177 - "#clock-cells" 126 - "#clock-cells"
178 - compatible 127 - compatible
179 - reg 128 - reg
180 - interrupts 129 - interrupts
>> 130 - clock-output-names
181 131
182 additionalProperties: false 132 additionalProperties: false
183 133
184 examples: 134 examples:
185 - | 135 - |
186 rtc: rtc@1f00000 { 136 rtc: rtc@1f00000 {
187 compatible = "allwinner,sun6i-a31-rtc" 137 compatible = "allwinner,sun6i-a31-rtc";
188 reg = <0x01f00000 0x400>; 138 reg = <0x01f00000 0x400>;
189 interrupts = <0 40 4>, <0 41 4>; 139 interrupts = <0 40 4>, <0 41 4>;
190 clock-output-names = "osc32k"; 140 clock-output-names = "osc32k";
191 clocks = <&ext_osc32k>; 141 clocks = <&ext_osc32k>;
192 #clock-cells = <1>; 142 #clock-cells = <1>;
193 }; 143 };
194 144
195 ... 145 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.