1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/spi/allwinn
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Allwinner A31 SPI Controller
8
9 allOf:
10 - $ref: spi-controller.yaml
11
12 maintainers:
13 - Chen-Yu Tsai <wens@csie.org>
14 - Maxime Ripard <mripard@kernel.org>
15
16 properties:
17 compatible:
18 oneOf:
19 - const: allwinner,sun50i-r329-spi
20 - const: allwinner,sun6i-a31-spi
21 - const: allwinner,sun8i-h3-spi
22 - items:
23 - enum:
24 - allwinner,sun8i-r40-spi
25 - allwinner,sun50i-h6-spi
26 - allwinner,sun50i-h616-spi
27 - allwinner,suniv-f1c100s-spi
28 - const: allwinner,sun8i-h3-spi
29 - items:
30 - enum:
31 - allwinner,sun20i-d1-spi
32 - allwinner,sun50i-r329-spi-dbi
33 - const: allwinner,sun50i-r329-spi
34 - items:
35 - const: allwinner,sun20i-d1-spi-dbi
36 - const: allwinner,sun50i-r329-spi-d
37 - const: allwinner,sun50i-r329-spi
38
39 reg:
40 maxItems: 1
41
42 interrupts:
43 maxItems: 1
44
45 clocks:
46 items:
47 - description: Bus Clock
48 - description: Module Clock
49
50 clock-names:
51 items:
52 - const: ahb
53 - const: mod
54
55 resets:
56 maxItems: 1
57
58 dmas:
59 items:
60 - description: RX DMA Channel
61 - description: TX DMA Channel
62
63 dma-names:
64 items:
65 - const: rx
66 - const: tx
67
68 patternProperties:
69 "^.*@[0-9a-f]+":
70 type: object
71 additionalProperties: true
72
73 properties:
74 reg:
75 items:
76 minimum: 0
77 maximum: 4
78
79 spi-rx-bus-width:
80 const: 1
81
82 spi-tx-bus-width:
83 const: 1
84
85 required:
86 - compatible
87 - reg
88 - interrupts
89 - clocks
90 - clock-names
91
92 unevaluatedProperties: false
93
94 examples:
95 - |
96 spi1: spi@1c69000 {
97 compatible = "allwinner,sun6i-a31-spi"
98 reg = <0x01c69000 0x1000>;
99 interrupts = <0 66 4>;
100 clocks = <&ahb1_gates 21>, <&spi1_clk>
101 clock-names = "ahb", "mod";
102 resets = <&ahb1_rst 21>;
103 #address-cells = <1>;
104 #size-cells = <0>;
105 };
106
107 - |
108 spi0: spi@1c68000 {
109 compatible = "allwinner,sun8i-h3-spi";
110 reg = <0x01c68000 0x1000>;
111 interrupts = <0 65 4>;
112 clocks = <&ccu 30>, <&ccu 82>;
113 clock-names = "ahb", "mod";
114 dmas = <&dma 23>, <&dma 23>;
115 dma-names = "rx", "tx";
116 resets = <&ccu 15>;
117 #address-cells = <1>;
118 #size-cells = <0>;
119 };
120
121 ...
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