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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: SiFive Unleashed Rev C000 Platform DMA
maintainers:
- Green Wan <green.wan@sifive.com>
- Palmer Debbelt <palmer@sifive.com>
- Paul Walmsley <paul.walmsley@sifive.com>
description: |
Platform DMA is a DMA engine of SiFive Unleashed. It supports 4
channels. Each channel has 2 interrupts. One is for DMA done and
the other is for DME error.
In different SoC, DMA could be attached to different IRQ line.
DT file need to be changed to meet the difference. For technical
doc,
https://static.dev.sifive.com/FU540-C000-v1.0.pdf
properties:
compatible:
items:
- const: sifive,fu540-c000-pdma
reg:
maxItems: 1
interrupts:
minItems: 1
maxItems: 8
'#dma-cells':
const: 1
required:
- compatible
- reg
- interrupts
- '#dma-cells'
additionalProperties: false
examples:
- |
dma@3000000 {
compatible = "sifive,fu540-c000-pdma";
reg = <0x3000000 0x8000>;
interrupts = <23 24 25 26 27 28 29 30>;
#dma-cells = <1>;
};
...
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