bindings/dma/sifive%2Cfu540-c000-pdma.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SiFive Unleashed Rev C000 Platform DMA
10   - Green Wan <green.wan@sifive.com>
11   - Palmer Debbelt <palmer@sifive.com>
12   - Paul Walmsley <paul.walmsley@sifive.com>
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
19   In different SoC, DMA could be attached to different IRQ line.
23   https://static.dev.sifive.com/FU540-C000-v1.0.pdf
26   - $ref: dma-controller.yaml#
31       - enum:
32           - sifive,fu540-c000-pdma
33       - const: sifive,pdma0
35       Should be "sifive,<chip>-pdma" and "sifive,pdma<version>".
36       Supported compatible strings are -
37       "sifive,fu540-c000-pdma" for the SiFive PDMA v0 as integrated onto the
48   dma-channels:
49     description: For backwards-compatibility, the default value is 4
52     default: 4
54   '#dma-cells':
58   - compatible
59   - reg
60   - interrupts
65   - |
66     dma-controller@3000000 {
67       compatible = "sifive,fu540-c000-pdma", "sifive,pdma0";
69       dma-channels = <4>;
71       #dma-cells = <1>;