1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/dma/allwinn 4 $id: http://devicetree.org/schemas/dma/allwinner,sun50i-a64-dma.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Allwinner A64 DMA Controller !! 7 title: Allwinner A64 DMA Controller Device Tree Bindings
8 8
9 maintainers: 9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org> 10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org> 11 - Maxime Ripard <mripard@kernel.org>
12 12
13 allOf: 13 allOf:
14 - $ref: dma-controller.yaml# !! 14 - $ref: "dma-controller.yaml#"
15 15
16 properties: 16 properties:
17 "#dma-cells": 17 "#dma-cells":
18 const: 1 18 const: 1
19 description: The cell is the request line 19 description: The cell is the request line number.
20 20
21 compatible: 21 compatible:
22 oneOf: 22 oneOf:
23 - enum: !! 23 - const: allwinner,sun50i-a64-dma
24 - allwinner,sun20i-d1-dma !! 24 - const: allwinner,sun50i-h6-dma
25 - allwinner,sun50i-a64-dma <<
26 - allwinner,sun50i-a100-dma <<
27 - allwinner,sun50i-h6-dma <<
28 - items: 25 - items:
29 - const: allwinner,sun8i-r40-dma 26 - const: allwinner,sun8i-r40-dma
30 - const: allwinner,sun50i-a64-dma 27 - const: allwinner,sun50i-a64-dma
31 - items: <<
32 - const: allwinner,sun50i-h616-dma <<
33 - const: allwinner,sun50i-a100-dma <<
34 28
35 reg: 29 reg:
36 maxItems: 1 30 maxItems: 1
37 31
38 interrupts: 32 interrupts:
39 maxItems: 1 33 maxItems: 1
40 34
41 clocks: 35 clocks:
42 minItems: 1 36 minItems: 1
43 maxItems: 2 37 maxItems: 2
44 38
45 clock-names: 39 clock-names:
46 items: 40 items:
47 - const: bus 41 - const: bus
48 - const: mbus 42 - const: mbus
49 43
50 resets: 44 resets:
51 maxItems: 1 45 maxItems: 1
52 46
53 required: 47 required:
54 - "#dma-cells" 48 - "#dma-cells"
55 - compatible 49 - compatible
56 - reg 50 - reg
57 - interrupts 51 - interrupts
58 - clocks 52 - clocks
59 - resets 53 - resets
60 - dma-channels 54 - dma-channels
61 55
62 if: 56 if:
63 properties: 57 properties:
64 compatible: 58 compatible:
65 contains: !! 59 const: allwinner,sun50i-h6-dma
66 enum: <<
67 - allwinner,sun20i-d1-dma <<
68 - allwinner,sun50i-a100-dma <<
69 - allwinner,sun50i-h6-dma <<
70 60
71 then: 61 then:
72 properties: 62 properties:
73 clocks: 63 clocks:
74 minItems: 2 64 minItems: 2
75 65
76 required: 66 required:
77 - clock-names 67 - clock-names
78 68
79 else: 69 else:
80 properties: 70 properties:
81 clocks: 71 clocks:
82 maxItems: 1 72 maxItems: 1
83 73
84 unevaluatedProperties: false 74 unevaluatedProperties: false
85 75
86 examples: 76 examples:
87 - | 77 - |
88 dma: dma-controller@1c02000 { 78 dma: dma-controller@1c02000 {
89 compatible = "allwinner,sun50i-a64-dma 79 compatible = "allwinner,sun50i-a64-dma";
90 reg = <0x01c02000 0x1000>; 80 reg = <0x01c02000 0x1000>;
91 interrupts = <0 50 4>; 81 interrupts = <0 50 4>;
92 clocks = <&ccu 30>; 82 clocks = <&ccu 30>;
93 dma-channels = <8>; 83 dma-channels = <8>;
94 dma-requests = <27>; 84 dma-requests = <27>;
95 resets = <&ccu 7>; 85 resets = <&ccu 7>;
96 #dma-cells = <1>; 86 #dma-cells = <1>;
97 }; 87 };
98 88
99 ... 89 ...
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