1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: SiFive Unleashed Rev C000 Platform DMA
8
9maintainers:
10  - Green Wan <green.wan@sifive.com>
11  - Palmer Debbelt <palmer@sifive.com>
12  - Paul Walmsley <paul.walmsley@sifive.com>
13
14description: |
15  Platform DMA is a DMA engine of SiFive Unleashed. It supports 4
16  channels. Each channel has 2 interrupts. One is for DMA done and
17  the other is for DME error.
18
19  In different SoC, DMA could be attached to different IRQ line.
20  DT file need to be changed to meet the difference. For technical
21  doc,
22
23  https://static.dev.sifive.com/FU540-C000-v1.0.pdf
24
25allOf:
26  - $ref: "dma-controller.yaml#"
27
28properties:
29  compatible:
30    items:
31      - const: sifive,fu540-c000-pdma
32
33  reg:
34    maxItems: 1
35
36  interrupts:
37    minItems: 1
38    maxItems: 8
39
40  '#dma-cells':
41    const: 1
42
43required:
44  - compatible
45  - reg
46  - interrupts
47
48unevaluatedProperties: false
49
50examples:
51  - |
52    dma-controller@3000000 {
53      compatible = "sifive,fu540-c000-pdma";
54      reg = <0x3000000 0x8000>;
55      interrupts = <23>, <24>, <25>, <26>, <27>, <28>, <29>, <30>;
56      #dma-cells = <1>;
57    };
58
59...
60