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
>> 35 maxItems: 2
41 items: 36 items:
42 - description: RTC Alarm 0 37 - description: RTC Alarm 0
43 - description: RTC Alarm 1 38 - description: RTC Alarm 1
44 39
45 clocks: 40 clocks:
46 minItems: 1 !! 41 maxItems: 1
47 maxItems: 4 <<
48 <<
49 clock-names: <<
50 minItems: 1 <<
51 maxItems: 4 <<
52 42
53 clock-output-names: 43 clock-output-names:
54 minItems: 1 44 minItems: 1
55 maxItems: 3 45 maxItems: 3
56 description: 46 description:
57 The RTC provides up to three clocks 47 The RTC provides up to three clocks
58 - the Low Frequency Oscillator or LOSC 48 - the Low Frequency Oscillator or LOSC, at index 0,
59 - the Low Frequency Oscillator Externa 49 - the Low Frequency Oscillator External output (X32KFOUT in
60 the datasheet), at index 1, 50 the datasheet), at index 1,
61 - the Internal Oscillator, at index 2. 51 - the Internal Oscillator, at index 2.
62 52
63 allOf: 53 allOf:
64 - $ref: rtc.yaml# !! 54 - $ref: "rtc.yaml#"
65 - if: 55 - if:
66 properties: 56 properties:
67 compatible: 57 compatible:
68 contains: 58 contains:
69 const: allwinner,sun6i-a31-rtc 59 const: allwinner,sun6i-a31-rtc
70 60
71 then: 61 then:
72 properties: 62 properties:
73 clock-output-names: 63 clock-output-names:
>> 64 minItems: 1
74 maxItems: 1 65 maxItems: 1
75 66
76 - if: 67 - if:
77 properties: 68 properties:
78 compatible: 69 compatible:
79 contains: 70 contains:
80 enum: 71 enum:
81 - allwinner,sun8i-a23-rtc 72 - allwinner,sun8i-a23-rtc
82 - allwinner,sun8i-r40-rtc 73 - allwinner,sun8i-r40-rtc
83 - allwinner,sun8i-v3-rtc 74 - allwinner,sun8i-v3-rtc
84 75
85 then: 76 then:
86 properties: 77 properties:
87 clock-output-names: 78 clock-output-names:
88 minItems: 2 79 minItems: 2
89 maxItems: 2 80 maxItems: 2
90 81
91 - if: 82 - if:
92 properties: 83 properties:
93 compatible: 84 compatible:
94 contains: 85 contains:
95 enum: 86 enum:
96 - allwinner,sun8i-h3-rtc 87 - allwinner,sun8i-h3-rtc
97 - allwinner,sun50i-h5-rtc 88 - allwinner,sun50i-h5-rtc
98 - allwinner,sun50i-h6-rtc <<
99 89
100 then: 90 then:
101 properties: 91 properties:
102 clock-output-names: 92 clock-output-names:
103 minItems: 3 93 minItems: 3
>> 94 maxItems: 3
104 95
105 - if: 96 - if:
106 properties: 97 properties:
107 compatible: 98 compatible:
108 contains: 99 contains:
109 const: allwinner,sun50i-h616-rtc !! 100 const: allwinner,sun50i-h6-rtc
110 101
111 then: 102 then:
112 properties: 103 properties:
113 clocks: !! 104 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: 3 105 minItems: 3
147 items: !! 106 maxItems: 3
148 - const: bus <<
149 - const: hosc <<
150 - const: ahb <<
151 - const: ext-osc32k <<
152 <<
153 required: <<
154 - clocks <<
155 - clock-names <<
156 107
157 - if: 108 - if:
158 properties: 109 properties:
159 compatible: 110 compatible:
160 contains: 111 contains:
161 enum: !! 112 const: allwinner,sun8i-r40-rtc
162 - allwinner,sun8i-r40-rtc <<
163 - allwinner,sun50i-h616-rtc <<
164 - allwinner,sun50i-r329-rtc <<
165 113
166 then: 114 then:
167 properties: 115 properties:
168 interrupts: 116 interrupts:
>> 117 minItems: 1
169 maxItems: 1 118 maxItems: 1
170 119
171 else: 120 else:
172 properties: 121 properties:
173 interrupts: 122 interrupts:
174 minItems: 2 123 minItems: 2
>> 124 maxItems: 2
175 125
176 required: 126 required:
177 - "#clock-cells" 127 - "#clock-cells"
178 - compatible 128 - compatible
179 - reg 129 - reg
180 - interrupts 130 - interrupts
>> 131 - clocks
>> 132 - clock-output-names
181 133
182 additionalProperties: false 134 additionalProperties: false
183 135
184 examples: 136 examples:
185 - | 137 - |
186 rtc: rtc@1f00000 { 138 rtc: rtc@1f00000 {
187 compatible = "allwinner,sun6i-a31-rtc" 139 compatible = "allwinner,sun6i-a31-rtc";
188 reg = <0x01f00000 0x400>; 140 reg = <0x01f00000 0x400>;
189 interrupts = <0 40 4>, <0 41 4>; 141 interrupts = <0 40 4>, <0 41 4>;
190 clock-output-names = "osc32k"; 142 clock-output-names = "osc32k";
191 clocks = <&ext_osc32k>; 143 clocks = <&ext_osc32k>;
192 #clock-cells = <1>; 144 #clock-cells = <1>;
193 }; 145 };
194 146
195 ... 147 ...
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