dts/upstream/Bindings/dma/marvell,mmp-dma.yaml


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/dma/marvell,mmp-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Marvell MMP DMA controller

maintainers:
  - Duje Mihanović <duje.mihanovic@skole.hr>

description:
  Marvell MMP SoCs may have two types of DMA controllers, peripheral and audio.

properties:
  compatible:
    enum:
      - marvell,pdma-1.0
      - marvell,adma-1.0
      - marvell,pxa910-squ

  reg:
    maxItems: 1

  interrupts:
    description:
      Interrupt lines for the controller, may be shared or one per DMA channel
    minItems: 1

  asram:
    description:
      A phandle to the SRAM pool
    $ref: /schemas/types.yaml#/definitions/phandle

  '#dma-channels':
    deprecated: true

  '#dma-requests':
    deprecated: true

required:
  - compatible
  - reg
  - interrupts
  - '#dma-cells'

allOf:
  - $ref: dma-controller.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - marvell,pdma-1.0
    then:
      properties:
        asram: false
    else:
      required:
        - asram

unevaluatedProperties: false

examples:
  - |
    dma-controller@d4000000 {
        compatible = "marvell,pdma-1.0";
        reg = <0xd4000000 0x10000>;
        interrupts = <47>;
        #dma-cells = <2>;
        dma-channels = <16>;
    };