1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/dma/fsl,mxs-dma.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale Direct Memory Access (DMA) Controller from i.MX23/i.MX28
8
9 maintainers:
10 - Marek Vasut <marex@denx.de>
11
12 allOf:
13 - $ref: dma-controller.yaml#
14 - if:
15 properties:
16 compatible:
17 contains:
18 const: fsl,imx8qxp-dma-apbh
19 then:
20 required:
21 - power-domains
22 else:
23 properties:
24 power-domains: false
25
26 properties:
27 compatible:
28 oneOf:
29 - items:
30 - enum:
31 - fsl,imx6q-dma-apbh
32 - fsl,imx6sx-dma-apbh
33 - fsl,imx7d-dma-apbh
34 - fsl,imx8qxp-dma-apbh
35 - const: fsl,imx28-dma-apbh
36 - enum:
37 - fsl,imx23-dma-apbh
38 - fsl,imx23-dma-apbx
39 - fsl,imx28-dma-apbh
40 - fsl,imx28-dma-apbx
41 reg:
42 maxItems: 1
43
44 clocks:
45 maxItems: 1
46
47 interrupts:
48 minItems: 4
49 maxItems: 16
50
51 "#dma-cells":
52 const: 1
53
54 dma-channels:
55 enum: [4, 8, 16]
56
57 power-domains:
58 maxItems: 1
59
60 required:
61 - compatible
62 - reg
63 - "#dma-cells"
64 - dma-channels
65 - interrupts
66
67 additionalProperties: false
68
69 examples:
70 - |
71 interrupt-parent = <&irqc>;
72
73 dma-controller@80004000 {
74 compatible = "fsl,imx28-dma-apbh";
75 reg = <0x80004000 0x2000>;
76 interrupts = <82 83 84 85
77 88 88 88 88
78 88 88 88 88
79 87 86 0 0>;
80 #dma-cells = <1>;
81 dma-channels = <16>;
82 };
83
84 dma-controller@80024000 {
85 compatible = "fsl,imx28-dma-apbx";
86 reg = <0x80024000 0x2000>;
87 interrupts = <78 79 66 0
88 80 81 68 69
89 70 71 72 73
90 74 75 76 77>;
91 #dma-cells = <1>;
92 dma-channels = <16>;
93 };
94
95 ...
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