0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/dma/renesas,rzn1-dmamux.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Renesas RZ/N1 DMA mux
0008
0009 maintainers:
0010 - Miquel Raynal <miquel.raynal@bootlin.com>
0011
0012 allOf:
0013 - $ref: "dma-router.yaml#"
0014
0015 properties:
0016 compatible:
0017 const: renesas,rzn1-dmamux
0018
0019 reg:
0020 maxItems: 1
0021 description: DMA mux first register offset within the system control parent.
0022
0023 '#dma-cells':
0024 const: 6
0025 description:
0026 The first four cells are dedicated to the master DMA controller. The fifth
0027 cell gives the DMA mux bit index that must be set starting from 0. The
0028 sixth cell gives the binary value that must be written there, ie. 0 or 1.
0029
0030 dma-masters:
0031 minItems: 1
0032 maxItems: 2
0033
0034 dma-requests:
0035 const: 32
0036
0037 required:
0038 - reg
0039 - dma-requests
0040
0041 additionalProperties: false
0042
0043 examples:
0044 - |
0045 dma-router@a0 {
0046 compatible = "renesas,rzn1-dmamux";
0047 reg = <0xa0 4>;
0048 #dma-cells = <6>;
0049 dma-masters = <&dma0 &dma1>;
0050 dma-requests = <32>;
0051 };
