1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/timer/renesas,cmt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Renesas Compare Match Timer (CMT)
8
9 maintainers:
10 - Geert Uytterhoeven <geert+renesas@glider.be>
11 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
12
13 description:
14 The CMT is a multi-channel 16/32/48-bit timer/counter with configurable clock
15 inputs and programmable compare match.
16
17 Channels share hardware resources but their counter and compare match values
18 are independent. A particular CMT instance can implement only a subset of the
19 channels supported by the CMT model. Channel indices represent the hardware
20 position of the channel in the CMT and don't match the channel numbers in the
21 datasheets.
22
23 properties:
24 compatible:
25 oneOf:
26 - items:
27 - enum:
28 - renesas,r8a7740-cmt0 # 32-bit CMT0 on R-Mobile A1
29 - renesas,r8a7740-cmt1 # 48-bit CMT1 on R-Mobile A1
30 - renesas,r8a7740-cmt2 # 32-bit CMT2 on R-Mobile A1
31 - renesas,r8a7740-cmt3 # 32-bit CMT3 on R-Mobile A1
32 - renesas,r8a7740-cmt4 # 32-bit CMT4 on R-Mobile A1
33 - renesas,sh73a0-cmt0 # 32-bit CMT0 on SH-Mobile AG5
34 - renesas,sh73a0-cmt1 # 48-bit CMT1 on SH-Mobile AG5
35 - renesas,sh73a0-cmt2 # 32-bit CMT2 on SH-Mobile AG5
36 - renesas,sh73a0-cmt3 # 32-bit CMT3 on SH-Mobile AG5
37 - renesas,sh73a0-cmt4 # 32-bit CMT4 on SH-Mobile AG5
38
39 - items:
40 - enum:
41 - renesas,r8a73a4-cmt0 # 32-bit CMT0 on R-Mobile APE6
42 - renesas,r8a7742-cmt0 # 32-bit CMT0 on RZ/G1H
43 - renesas,r8a7743-cmt0 # 32-bit CMT0 on RZ/G1M
44 - renesas,r8a7744-cmt0 # 32-bit CMT0 on RZ/G1N
45 - renesas,r8a7745-cmt0 # 32-bit CMT0 on RZ/G1E
46 - renesas,r8a77470-cmt0 # 32-bit CMT0 on RZ/G1C
47 - renesas,r8a7790-cmt0 # 32-bit CMT0 on R-Car H2
48 - renesas,r8a7791-cmt0 # 32-bit CMT0 on R-Car M2-W
49 - renesas,r8a7792-cmt0 # 32-bit CMT0 on R-Car V2H
50 - renesas,r8a7793-cmt0 # 32-bit CMT0 on R-Car M2-N
51 - renesas,r8a7794-cmt0 # 32-bit CMT0 on R-Car E2
52 - const: renesas,rcar-gen2-cmt0 # 32-bit CMT0 on R-Mobile APE6, R-Car Gen2 and RZ/G1
53
54 - items:
55 - enum:
56 - renesas,r8a73a4-cmt1 # 48-bit CMT1 on R-Mobile APE6
57 - renesas,r8a7742-cmt1 # 48-bit CMT1 on RZ/G1H
58 - renesas,r8a7743-cmt1 # 48-bit CMT1 on RZ/G1M
59 - renesas,r8a7744-cmt1 # 48-bit CMT1 on RZ/G1N
60 - renesas,r8a7745-cmt1 # 48-bit CMT1 on RZ/G1E
61 - renesas,r8a77470-cmt1 # 48-bit CMT1 on RZ/G1C
62 - renesas,r8a7790-cmt1 # 48-bit CMT1 on R-Car H2
63 - renesas,r8a7791-cmt1 # 48-bit CMT1 on R-Car M2-W
64 - renesas,r8a7792-cmt1 # 48-bit CMT1 on R-Car V2H
65 - renesas,r8a7793-cmt1 # 48-bit CMT1 on R-Car M2-N
66 - renesas,r8a7794-cmt1 # 48-bit CMT1 on R-Car E2
67 - const: renesas,rcar-gen2-cmt1 # 48-bit CMT1 on R-Mobile APE6, R-Car Gen2 and RZ/G1
68
69 - items:
70 - enum:
71 - renesas,r8a774a1-cmt0 # 32-bit CMT0 on RZ/G2M
72 - renesas,r8a774b1-cmt0 # 32-bit CMT0 on RZ/G2N
73 - renesas,r8a774c0-cmt0 # 32-bit CMT0 on RZ/G2E
74 - renesas,r8a774e1-cmt0 # 32-bit CMT0 on RZ/G2H
75 - renesas,r8a7795-cmt0 # 32-bit CMT0 on R-Car H3
76 - renesas,r8a7796-cmt0 # 32-bit CMT0 on R-Car M3-W
77 - renesas,r8a77961-cmt0 # 32-bit CMT0 on R-Car M3-W+
78 - renesas,r8a77965-cmt0 # 32-bit CMT0 on R-Car M3-N
79 - renesas,r8a77970-cmt0 # 32-bit CMT0 on R-Car V3M
80 - renesas,r8a77980-cmt0 # 32-bit CMT0 on R-Car V3H
81 - renesas,r8a77990-cmt0 # 32-bit CMT0 on R-Car E3
82 - renesas,r8a77995-cmt0 # 32-bit CMT0 on R-Car D3
83 - const: renesas,rcar-gen3-cmt0 # 32-bit CMT0 on R-Car Gen3 and RZ/G2
84
85 - items:
86 - enum:
87 - renesas,r8a774a1-cmt1 # 48-bit CMT on RZ/G2M
88 - renesas,r8a774b1-cmt1 # 48-bit CMT on RZ/G2N
89 - renesas,r8a774c0-cmt1 # 48-bit CMT on RZ/G2E
90 - renesas,r8a774e1-cmt1 # 48-bit CMT on RZ/G2H
91 - renesas,r8a7795-cmt1 # 48-bit CMT on R-Car H3
92 - renesas,r8a7796-cmt1 # 48-bit CMT on R-Car M3-W
93 - renesas,r8a77961-cmt1 # 48-bit CMT on R-Car M3-W+
94 - renesas,r8a77965-cmt1 # 48-bit CMT on R-Car M3-N
95 - renesas,r8a77970-cmt1 # 48-bit CMT on R-Car V3M
96 - renesas,r8a77980-cmt1 # 48-bit CMT on R-Car V3H
97 - renesas,r8a77990-cmt1 # 48-bit CMT on R-Car E3
98 - renesas,r8a77995-cmt1 # 48-bit CMT on R-Car D3
99 - const: renesas,rcar-gen3-cmt1 # 48-bit CMT on R-Car Gen3 and RZ/G2
100
101 - items:
102 - enum:
103 - renesas,r8a779a0-cmt0 # 32-bit CMT0 on R-Car V3U
104 - renesas,r8a779f0-cmt0 # 32-bit CMT0 on R-Car S4-8
105 - renesas,r8a779g0-cmt0 # 32-bit CMT0 on R-Car V4H
106 - renesas,r8a779h0-cmt0 # 32-bit CMT0 on R-Car V4M
107 - const: renesas,rcar-gen4-cmt0 # 32-bit CMT0 on R-Car Gen4
108
109 - items:
110 - enum:
111 - renesas,r8a779a0-cmt1 # 48-bit CMT on R-Car V3U
112 - renesas,r8a779f0-cmt1 # 48-bit CMT on R-Car S4-8
113 - renesas,r8a779g0-cmt1 # 48-bit CMT on R-Car V4H
114 - renesas,r8a779h0-cmt1 # 48-bit CMT on R-Car V4M
115 - const: renesas,rcar-gen4-cmt1 # 48-bit CMT on R-Car Gen4
116
117 reg:
118 maxItems: 1
119
120 interrupts:
121 minItems: 1
122 maxItems: 8
123
124 clocks:
125 maxItems: 1
126
127 clock-names:
128 const: fck
129
130 power-domains:
131 maxItems: 1
132
133 resets:
134 maxItems: 1
135
136 required:
137 - compatible
138 - reg
139 - interrupts
140 - clocks
141 - clock-names
142 - power-domains
143
144 allOf:
145 - if:
146 properties:
147 compatible:
148 contains:
149 enum:
150 - renesas,rcar-gen2-cmt0
151 - renesas,rcar-gen3-cmt0
152 - renesas,rcar-gen4-cmt0
153 then:
154 properties:
155 interrupts:
156 minItems: 2
157 maxItems: 2
158
159 - if:
160 properties:
161 compatible:
162 contains:
163 enum:
164 - renesas,rcar-gen2-cmt1
165 - renesas,rcar-gen3-cmt1
166 - renesas,rcar-gen4-cmt1
167 then:
168 properties:
169 interrupts:
170 minItems: 8
171 maxItems: 8
172
173 additionalProperties: false
174
175 examples:
176 - |
177 #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
178 #include <dt-bindings/interrupt-controller/arm-gic.h>
179 #include <dt-bindings/power/r8a7790-sysc.h>
180 cmt0: timer@ffca0000 {
181 compatible = "renesas,r8a7790-cmt0", "renesas,rcar-gen2-cmt0";
182 reg = <0xffca0000 0x1004>;
183 interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
184 <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
185 clocks = <&cpg CPG_MOD 124>;
186 clock-names = "fck";
187 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
188 resets = <&cpg 124>;
189 };
190
191 cmt1: timer@e6130000 {
192 compatible = "renesas,r8a7790-cmt1", "renesas,rcar-gen2-cmt1";
193 reg = <0xe6130000 0x1004>;
194 interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
195 <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
196 <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
197 <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
198 <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
199 <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
200 <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>,
201 <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>;
202 clocks = <&cpg CPG_MOD 329>;
203 clock-names = "fck";
204 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
205 resets = <&cpg 329>;
206 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.