1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/allwinner,sun6i-a31-spi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A31 SPI Controller
8
9allOf:
10  - $ref: spi-controller.yaml
11
12maintainers:
13  - Chen-Yu Tsai <wens@csie.org>
14  - Maxime Ripard <mripard@kernel.org>
15
16properties:
17  "#address-cells": true
18  "#size-cells": true
19
20  compatible:
21    oneOf:
22      - const: allwinner,sun50i-r329-spi
23      - const: allwinner,sun6i-a31-spi
24      - const: allwinner,sun8i-h3-spi
25      - items:
26          - enum:
27              - allwinner,sun8i-r40-spi
28              - allwinner,sun50i-h6-spi
29              - allwinner,sun50i-h616-spi
30              - allwinner,suniv-f1c100s-spi
31          - const: allwinner,sun8i-h3-spi
32      - items:
33          - enum:
34              - allwinner,sun20i-d1-spi
35              - allwinner,sun50i-r329-spi-dbi
36          - const: allwinner,sun50i-r329-spi
37      - items:
38          - const: allwinner,sun20i-d1-spi-dbi
39          - const: allwinner,sun50i-r329-spi-dbi
40          - const: allwinner,sun50i-r329-spi
41
42  reg:
43    maxItems: 1
44
45  interrupts:
46    maxItems: 1
47
48  clocks:
49    items:
50      - description: Bus Clock
51      - description: Module Clock
52
53  clock-names:
54    items:
55      - const: ahb
56      - const: mod
57
58  resets:
59    maxItems: 1
60
61  dmas:
62    items:
63      - description: RX DMA Channel
64      - description: TX DMA Channel
65
66  dma-names:
67    items:
68      - const: rx
69      - const: tx
70
71  num-cs: true
72
73patternProperties:
74  "^.*@[0-9a-f]+":
75    type: object
76    additionalProperties: true
77    properties:
78      reg:
79        items:
80          minimum: 0
81          maximum: 4
82
83      spi-rx-bus-width:
84        const: 1
85
86      spi-tx-bus-width:
87        const: 1
88
89required:
90  - compatible
91  - reg
92  - interrupts
93  - clocks
94  - clock-names
95
96additionalProperties: false
97
98examples:
99  - |
100    spi1: spi@1c69000 {
101        compatible = "allwinner,sun6i-a31-spi";
102        reg = <0x01c69000 0x1000>;
103        interrupts = <0 66 4>;
104        clocks = <&ahb1_gates 21>, <&spi1_clk>;
105        clock-names = "ahb", "mod";
106        resets = <&ahb1_rst 21>;
107        #address-cells = <1>;
108        #size-cells = <0>;
109    };
110
111  - |
112    spi0: spi@1c68000 {
113        compatible = "allwinner,sun8i-h3-spi";
114        reg = <0x01c68000 0x1000>;
115        interrupts = <0 65 4>;
116        clocks = <&ccu 30>, <&ccu 82>;
117        clock-names = "ahb", "mod";
118        dmas = <&dma 23>, <&dma 23>;
119        dma-names = "rx", "tx";
120        resets = <&ccu 15>;
121        #address-cells = <1>;
122        #size-cells = <0>;
123    };
124
125...
126