1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/watchdog/renesas,wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Renesas Watchdog Timer (WDT) Controller
8
9 maintainers:
10 - Wolfram Sang <wsa+renesas@sang-engineering.com>
11 - Geert Uytterhoeven <geert+renesas@glider.be>
12
13 properties:
14 compatible:
15 oneOf:
16 - items:
17 - enum:
18 - renesas,r7s72100-wdt # RZ/A1
19 - renesas,r7s9210-wdt # RZ/A2
20 - const: renesas,rza-wdt # RZ/A
21
22 - items:
23 - enum:
24 - renesas,r9a06g032-wdt # RZ/N1D
25 - const: renesas,rzn1-wdt # RZ/N1
26
27 - items:
28 - enum:
29 - renesas,r9a07g043-wdt # RZ/G2UL and RZ/Five
30 - renesas,r9a07g044-wdt # RZ/G2{L,LC}
31 - renesas,r9a07g054-wdt # RZ/V2L
32 - renesas,r9a08g045-wdt # RZ/G3S
33 - const: renesas,rzg2l-wdt
34
35 - items:
36 - enum:
37 - renesas,r9a09g011-wdt # RZ/V2M
38 - const: renesas,rzv2m-wdt # RZ/V2M
39
40 - items:
41 - enum:
42 - renesas,r8a7742-wdt # RZ/G1H
43 - renesas,r8a7743-wdt # RZ/G1M
44 - renesas,r8a7744-wdt # RZ/G1N
45 - renesas,r8a7745-wdt # RZ/G1E
46 - renesas,r8a77470-wdt # RZ/G1C
47 - renesas,r8a7790-wdt # R-Car H2
48 - renesas,r8a7791-wdt # R-Car M2-W
49 - renesas,r8a7792-wdt # R-Car V2H
50 - renesas,r8a7793-wdt # R-Car M2-N
51 - renesas,r8a7794-wdt # R-Car E2
52 - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1
53
54 - items:
55 - enum:
56 - renesas,r8a774a1-wdt # RZ/G2M
57 - renesas,r8a774b1-wdt # RZ/G2N
58 - renesas,r8a774c0-wdt # RZ/G2E
59 - renesas,r8a774e1-wdt # RZ/G2H
60 - renesas,r8a7795-wdt # R-Car H3
61 - renesas,r8a7796-wdt # R-Car M3-W
62 - renesas,r8a77961-wdt # R-Car M3-W+
63 - renesas,r8a77965-wdt # R-Car M3-N
64 - renesas,r8a77970-wdt # R-Car V3M
65 - renesas,r8a77980-wdt # R-Car V3H
66 - renesas,r8a77990-wdt # R-Car E3
67 - renesas,r8a77995-wdt # R-Car D3
68 - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2
69
70 - items:
71 - enum:
72 - renesas,r8a779a0-wdt # R-Car V3U
73 - renesas,r8a779f0-wdt # R-Car S4-8
74 - renesas,r8a779g0-wdt # R-Car V4H
75 - renesas,r8a779h0-wdt # R-Car V4M
76 - const: renesas,rcar-gen4-wdt # R-Car Gen4
77
78 - const: renesas,r9a09g057-wdt # RZ/V2H(P)
79
80 reg:
81 maxItems: 1
82
83 interrupts:
84 minItems: 1
85 items:
86 - description: Timeout
87 - description: Parity error
88
89 interrupt-names:
90 minItems: 1
91 items:
92 - const: wdt
93 - const: perrout
94
95 clocks:
96 minItems: 1
97 items:
98 - description: Register access clock
99 - description: Main clock
100
101 clock-names:
102 minItems: 1
103 items:
104 - const: pclk
105 - const: oscclk
106
107 power-domains:
108 maxItems: 1
109
110 resets:
111 maxItems: 1
112
113 timeout-sec: true
114
115 required:
116 - compatible
117 - reg
118 - clocks
119
120 allOf:
121 - $ref: watchdog.yaml#
122
123 - if:
124 not:
125 properties:
126 compatible:
127 contains:
128 enum:
129 - renesas,rza-wdt
130 - renesas,rzn1-wdt
131 then:
132 required:
133 - power-domains
134 - resets
135
136 - if:
137 properties:
138 compatible:
139 contains:
140 enum:
141 - renesas,r9a09g057-wdt
142 - renesas,rzg2l-wdt
143 - renesas,rzv2m-wdt
144 then:
145 properties:
146 clocks:
147 minItems: 2
148 clock-names:
149 minItems: 2
150 required:
151 - clock-names
152 else:
153 properties:
154 clocks:
155 maxItems: 1
156
157 - if:
158 properties:
159 compatible:
160 contains:
161 enum:
162 - renesas,rzg2l-wdt
163 then:
164 properties:
165 interrupts:
166 minItems: 2
167 interrupt-names:
168 minItems: 2
169 required:
170 - interrupt-names
171 else:
172 properties:
173 interrupts:
174 maxItems: 1
175
176 - if:
177 properties:
178 compatible:
179 contains:
180 const: renesas,r9a09g057-wdt
181 then:
182 properties:
183 interrupts: false
184 interrupt-names: false
185 else:
186 required:
187 - interrupts
188
189 additionalProperties: false
190
191 examples:
192 - |
193 #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
194 #include <dt-bindings/power/r8a7795-sysc.h>
195 #include <dt-bindings/interrupt-controller/arm-gic.h>
196 wdt0: watchdog@e6020000 {
197 compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
198 reg = <0xe6020000 0x0c>;
199 interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
200 clocks = <&cpg CPG_MOD 402>;
201 power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
202 resets = <&cpg 402>;
203 timeout-sec = <60>;
204 };
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