1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/dma/socionext,uniphier-xdmac.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Socionext UniPhier external DMA controller
10 This describes the devicetree bindings for an external DMA engine to perform
11 memory-to-memory or peripheral-to-memory data transfer capable of supporting
12 16 channels, implemented in Socionext UniPhier SoCs.
15 - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
18 - $ref: "dma-controller.yaml#"
22 const: socionext,uniphier-xdmac
26 - description: XDMAC base register region (offset and length)
27 - description: XDMAC extension register region (offset and length)
35 DMA request from clients consists of 2 cells:
37 2. Transfer request factor number, If no transfer factor, use 0.
38 The number is SoC-specific, and this should be specified with
39 relation to the device to use the DMA controller.
45 additionalProperties: false
55 xdmac: dma-controller@5fc10000 {
56 compatible = "socionext,uniphier-xdmac";
57 reg = <0x5fc10000 0x1000>, <0x5fc20000 0x800>;
58 interrupts = <0 188 4>;