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 - enum:
20 - allwinner,sun6i-a31-rtc 20 - allwinner,sun6i-a31-rtc
21 - allwinner,sun8i-a23-rtc 21 - allwinner,sun8i-a23-rtc
22 - allwinner,sun8i-h3-rtc 22 - allwinner,sun8i-h3-rtc
23 - allwinner,sun8i-r40-rtc 23 - allwinner,sun8i-r40-rtc
24 - allwinner,sun8i-v3-rtc 24 - allwinner,sun8i-v3-rtc
25 - allwinner,sun50i-h5-rtc 25 - allwinner,sun50i-h5-rtc
26 - allwinner,sun50i-h6-rtc 26 - allwinner,sun50i-h6-rtc
27 - allwinner,sun50i-h616-rtc 27 - allwinner,sun50i-h616-rtc
28 - allwinner,sun50i-r329-rtc 28 - allwinner,sun50i-r329-rtc
29 - items: 29 - items:
30 - const: allwinner,sun50i-a64-rtc 30 - const: allwinner,sun50i-a64-rtc
31 - const: allwinner,sun8i-h3-rtc 31 - const: allwinner,sun8i-h3-rtc
32 - items: 32 - items:
33 - const: allwinner,sun20i-d1-rtc 33 - const: allwinner,sun20i-d1-rtc
34 - const: allwinner,sun50i-r329-rtc 34 - const: allwinner,sun50i-r329-rtc
35 35
36 reg: 36 reg:
37 maxItems: 1 37 maxItems: 1
38 38
39 interrupts: 39 interrupts:
40 minItems: 1 40 minItems: 1
41 items: 41 items:
42 - description: RTC Alarm 0 42 - description: RTC Alarm 0
43 - description: RTC Alarm 1 43 - description: RTC Alarm 1
44 44
45 clocks: 45 clocks:
46 minItems: 1 46 minItems: 1
47 maxItems: 4 47 maxItems: 4
48 48
49 clock-names: 49 clock-names:
50 minItems: 1 50 minItems: 1
51 maxItems: 4 51 maxItems: 4
52 52
53 clock-output-names: 53 clock-output-names:
54 minItems: 1 54 minItems: 1
55 maxItems: 3 55 maxItems: 3
56 description: 56 description:
57 The RTC provides up to three clocks 57 The RTC provides up to three clocks
58 - the Low Frequency Oscillator or LOSC 58 - the Low Frequency Oscillator or LOSC, at index 0,
59 - the Low Frequency Oscillator Externa 59 - the Low Frequency Oscillator External output (X32KFOUT in
60 the datasheet), at index 1, 60 the datasheet), at index 1,
61 - the Internal Oscillator, at index 2. 61 - the Internal Oscillator, at index 2.
62 62
63 allOf: 63 allOf:
64 - $ref: rtc.yaml# !! 64 - $ref: "rtc.yaml#"
65 - if: 65 - if:
66 properties: 66 properties:
67 compatible: 67 compatible:
68 contains: 68 contains:
69 const: allwinner,sun6i-a31-rtc 69 const: allwinner,sun6i-a31-rtc
70 70
71 then: 71 then:
72 properties: 72 properties:
73 clock-output-names: 73 clock-output-names:
74 maxItems: 1 74 maxItems: 1
75 75
76 - if: 76 - if:
77 properties: 77 properties:
78 compatible: 78 compatible:
79 contains: 79 contains:
80 enum: 80 enum:
81 - allwinner,sun8i-a23-rtc 81 - allwinner,sun8i-a23-rtc
82 - allwinner,sun8i-r40-rtc 82 - allwinner,sun8i-r40-rtc
83 - allwinner,sun8i-v3-rtc 83 - allwinner,sun8i-v3-rtc
84 84
85 then: 85 then:
86 properties: 86 properties:
87 clock-output-names: 87 clock-output-names:
88 minItems: 2 88 minItems: 2
89 maxItems: 2 89 maxItems: 2
90 90
91 - if: 91 - if:
92 properties: 92 properties:
93 compatible: 93 compatible:
94 contains: 94 contains:
95 enum: 95 enum:
96 - allwinner,sun8i-h3-rtc 96 - allwinner,sun8i-h3-rtc
97 - allwinner,sun50i-h5-rtc 97 - allwinner,sun50i-h5-rtc
98 - allwinner,sun50i-h6-rtc 98 - allwinner,sun50i-h6-rtc
99 99
100 then: 100 then:
101 properties: 101 properties:
102 clock-output-names: 102 clock-output-names:
103 minItems: 3 103 minItems: 3
104 104
105 - if: 105 - if:
106 properties: 106 properties:
107 compatible: 107 compatible:
108 contains: 108 contains:
109 const: allwinner,sun50i-h616-rtc 109 const: allwinner,sun50i-h616-rtc
110 110
111 then: 111 then:
112 properties: 112 properties:
113 clocks: 113 clocks:
114 items: 114 items:
115 - description: Bus clock for regis 115 - description: Bus clock for register access
116 - description: 24 MHz oscillator 116 - description: 24 MHz oscillator
117 - description: 32 kHz clock from t 117 - description: 32 kHz clock from the CCU
118 118
119 clock-names: 119 clock-names:
120 items: 120 items:
121 - const: bus 121 - const: bus
122 - const: hosc 122 - const: hosc
123 - const: pll-32k 123 - const: pll-32k
124 124
125 required: 125 required:
126 - clocks 126 - clocks
127 - clock-names 127 - clock-names
128 128
129 - if: 129 - if:
130 properties: 130 properties:
131 compatible: 131 compatible:
132 contains: 132 contains:
133 const: allwinner,sun50i-r329-rtc 133 const: allwinner,sun50i-r329-rtc
134 134
135 then: 135 then:
136 properties: 136 properties:
137 clocks: 137 clocks:
138 minItems: 3 138 minItems: 3
139 items: 139 items:
140 - description: Bus clock for regis 140 - description: Bus clock for register access
141 - description: 24 MHz oscillator 141 - description: 24 MHz oscillator
142 - description: AHB parent for inte 142 - description: AHB parent for internal SPI clock
143 - description: External 32768 Hz o 143 - description: External 32768 Hz oscillator
144 144
145 clock-names: 145 clock-names:
146 minItems: 3 146 minItems: 3
147 items: 147 items:
148 - const: bus 148 - const: bus
149 - const: hosc 149 - const: hosc
150 - const: ahb 150 - const: ahb
151 - const: ext-osc32k 151 - const: ext-osc32k
152 152
153 required: 153 required:
154 - clocks 154 - clocks
155 - clock-names 155 - clock-names
156 156
157 - if: 157 - if:
158 properties: 158 properties:
159 compatible: 159 compatible:
160 contains: 160 contains:
161 enum: 161 enum:
162 - allwinner,sun8i-r40-rtc 162 - allwinner,sun8i-r40-rtc
163 - allwinner,sun50i-h616-rtc 163 - allwinner,sun50i-h616-rtc
164 - allwinner,sun50i-r329-rtc 164 - allwinner,sun50i-r329-rtc
165 165
166 then: 166 then:
167 properties: 167 properties:
168 interrupts: 168 interrupts:
169 maxItems: 1 169 maxItems: 1
170 170
171 else: 171 else:
172 properties: 172 properties:
173 interrupts: 173 interrupts:
174 minItems: 2 174 minItems: 2
175 175
176 required: 176 required:
177 - "#clock-cells" 177 - "#clock-cells"
178 - compatible 178 - compatible
179 - reg 179 - reg
180 - interrupts 180 - interrupts
181 181
182 additionalProperties: false 182 additionalProperties: false
183 183
184 examples: 184 examples:
185 - | 185 - |
186 rtc: rtc@1f00000 { 186 rtc: rtc@1f00000 {
187 compatible = "allwinner,sun6i-a31-rtc" 187 compatible = "allwinner,sun6i-a31-rtc";
188 reg = <0x01f00000 0x400>; 188 reg = <0x01f00000 0x400>;
189 interrupts = <0 40 4>, <0 41 4>; 189 interrupts = <0 40 4>, <0 41 4>;
190 clock-output-names = "osc32k"; 190 clock-output-names = "osc32k";
191 clocks = <&ext_osc32k>; 191 clocks = <&ext_osc32k>;
192 #clock-cells = <1>; 192 #clock-cells = <1>;
193 }; 193 };
194 194
195 ... 195 ...
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