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,rzn1-dmamux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Renesas RZ/N1 DMA mux
8
9 maintainers:
10 - Miquel Raynal <miquel.raynal@bootlin.com>
11
12 allOf:
13 - $ref: dma-router.yaml#
14
15 properties:
16 compatible:
17 const: renesas,rzn1-dmamux
18
19 reg:
20 maxItems: 1
21 description: DMA mux first register offset within the system control parent.
22
23 '#dma-cells':
24 const: 6
25 description:
26 The first four cells are dedicated to the master DMA controller. The fifth
27 cell gives the DMA mux bit index that must be set starting from 0. The
28 sixth cell gives the binary value that must be written there, ie. 0 or 1.
29
30 dma-masters:
31 minItems: 1
32 maxItems: 2
33
34 dma-requests:
35 const: 32
36
37 required:
38 - reg
39 - dma-requests
40
41 additionalProperties: false
42
43 examples:
44 - |
45 dma-router@a0 {
46 compatible = "renesas,rzn1-dmamux";
47 reg = <0xa0 4>;
48 #dma-cells = <6>;
49 dma-masters = <&dma0 &dma1>;
50 dma-requests = <32>;
51 };
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