xref: /linux/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml (revision eb01fe7abbe2d0b38824d2a93fdb4cc3eaf2ccc1) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/dma/renesas,rcar-dmac.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas R-Car and RZ/G DMA Controller
8
9maintainers:
10  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
11
12allOf:
13  - $ref: dma-controller.yaml#
14
15properties:
16  compatible:
17    oneOf:
18      - items:
19          - enum:
20              - renesas,dmac-r8a7742  # RZ/G1H
21              - renesas,dmac-r8a7743  # RZ/G1M
22              - renesas,dmac-r8a7744  # RZ/G1N
23              - renesas,dmac-r8a7745  # RZ/G1E
24              - renesas,dmac-r8a77470 # RZ/G1C
25              - renesas,dmac-r8a774a1 # RZ/G2M
26              - renesas,dmac-r8a774b1 # RZ/G2N
27              - renesas,dmac-r8a774c0 # RZ/G2E
28              - renesas,dmac-r8a774e1 # RZ/G2H
29              - renesas,dmac-r8a7790  # R-Car H2
30              - renesas,dmac-r8a7791  # R-Car M2-W
31              - renesas,dmac-r8a7792  # R-Car V2H
32              - renesas,dmac-r8a7793  # R-Car M2-N
33              - renesas,dmac-r8a7794  # R-Car E2
34              - renesas,dmac-r8a7795  # R-Car H3
35              - renesas,dmac-r8a7796  # R-Car M3-W
36              - renesas,dmac-r8a77961 # R-Car M3-W+
37              - renesas,dmac-r8a77965 # R-Car M3-N
38              - renesas,dmac-r8a77970 # R-Car V3M
39              - renesas,dmac-r8a77980 # R-Car V3H
40              - renesas,dmac-r8a77990 # R-Car E3
41              - renesas,dmac-r8a77995 # R-Car D3
42          - const: renesas,rcar-dmac
43
44      - items:
45          - enum:
46              - renesas,dmac-r8a779a0     # R-Car V3U
47              - renesas,dmac-r8a779f0     # R-Car S4-8
48              - renesas,dmac-r8a779g0     # R-Car V4H
49              - renesas,dmac-r8a779h0     # R-Car V4M
50          - const: renesas,rcar-gen4-dmac # R-Car Gen4
51
52  reg: true
53
54  interrupts:
55    minItems: 9
56    maxItems: 17
57
58  interrupt-names:
59    minItems: 9
60    items:
61      - const: error
62      - pattern: "^ch([0-9]|1[0-5])$"
63      - pattern: "^ch([0-9]|1[0-5])$"
64      - pattern: "^ch([0-9]|1[0-5])$"
65      - pattern: "^ch([0-9]|1[0-5])$"
66      - pattern: "^ch([0-9]|1[0-5])$"
67      - pattern: "^ch([0-9]|1[0-5])$"
68      - pattern: "^ch([0-9]|1[0-5])$"
69      - pattern: "^ch([0-9]|1[0-5])$"
70      - pattern: "^ch([0-9]|1[0-5])$"
71      - pattern: "^ch([0-9]|1[0-5])$"
72      - pattern: "^ch([0-9]|1[0-5])$"
73      - pattern: "^ch([0-9]|1[0-5])$"
74      - pattern: "^ch([0-9]|1[0-5])$"
75      - pattern: "^ch([0-9]|1[0-5])$"
76      - pattern: "^ch([0-9]|1[0-5])$"
77      - pattern: "^ch([0-9]|1[0-5])$"
78
79  clocks:
80    maxItems: 1
81
82  clock-names:
83    items:
84      - const: fck
85
86  '#dma-cells':
87    const: 1
88    description:
89      The cell specifies the MID/RID of the DMAC port connected to
90      the DMA client.
91
92  dma-channels:
93    minimum: 8
94    maximum: 16
95
96  dma-channel-mask: true
97
98  iommus:
99    minItems: 8
100    maxItems: 16
101
102  power-domains:
103    maxItems: 1
104
105  resets:
106    maxItems: 1
107
108required:
109  - compatible
110  - reg
111  - interrupts
112  - interrupt-names
113  - clocks
114  - clock-names
115  - '#dma-cells'
116  - dma-channels
117  - power-domains
118  - resets
119
120if:
121  properties:
122    compatible:
123      contains:
124        enum:
125          - renesas,rcar-gen4-dmac
126then:
127  properties:
128    reg:
129      items:
130        - description: Base register block
131        - description: Channel register block
132else:
133  properties:
134    reg:
135      maxItems: 1
136
137additionalProperties: false
138
139examples:
140  - |
141    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
142    #include <dt-bindings/interrupt-controller/arm-gic.h>
143    #include <dt-bindings/power/r8a7790-sysc.h>
144
145    dmac0: dma-controller@e6700000 {
146        compatible = "renesas,dmac-r8a7790", "renesas,rcar-dmac";
147        reg = <0xe6700000 0x20000>;
148        interrupts = <GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>,
149                     <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>,
150                     <GIC_SPI 201 IRQ_TYPE_LEVEL_HIGH>,
151                     <GIC_SPI 202 IRQ_TYPE_LEVEL_HIGH>,
152                     <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>,
153                     <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>,
154                     <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>,
155                     <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>,
156                     <GIC_SPI 207 IRQ_TYPE_LEVEL_HIGH>,
157                     <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>,
158                     <GIC_SPI 209 IRQ_TYPE_LEVEL_HIGH>,
159                     <GIC_SPI 210 IRQ_TYPE_LEVEL_HIGH>,
160                     <GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>,
161                     <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>,
162                     <GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>,
163                     <GIC_SPI 214 IRQ_TYPE_LEVEL_HIGH>;
164        interrupt-names = "error",
165                          "ch0", "ch1", "ch2", "ch3",
166                          "ch4", "ch5", "ch6", "ch7",
167                          "ch8", "ch9", "ch10", "ch11",
168                          "ch12", "ch13", "ch14";
169        clocks = <&cpg CPG_MOD 219>;
170        clock-names = "fck";
171        power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
172        resets = <&cpg 219>;
173        #dma-cells = <1>;
174        dma-channels = <15>;
175    };
176