xref: /freebsd/sys/contrib/device-tree/Bindings/spi/mediatek,spi-mt65xx.yaml (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/mediatek,spi-mt65xx.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: SPI Bus controller for MediaTek ARM SoCs
8
9maintainers:
10  - Leilk Liu <leilk.liu@mediatek.com>
11
12allOf:
13  - $ref: "/schemas/spi/spi-controller.yaml#"
14
15properties:
16  compatible:
17    oneOf:
18      - items:
19          - enum:
20              - mediatek,mt7629-spi
21          - const: mediatek,mt7622-spi
22      - items:
23          - enum:
24              - mediatek,mt8516-spi
25          - const: mediatek,mt2712-spi
26      - items:
27          - enum:
28              - mediatek,mt6779-spi
29              - mediatek,mt8186-spi
30              - mediatek,mt8192-spi
31              - mediatek,mt8195-spi
32          - const: mediatek,mt6765-spi
33      - items:
34          - enum:
35              - mediatek,mt7986-spi-ipm
36          - const: mediatek,spi-ipm
37      - items:
38          - enum:
39              - mediatek,mt2701-spi
40              - mediatek,mt2712-spi
41              - mediatek,mt6589-spi
42              - mediatek,mt6765-spi
43              - mediatek,mt6893-spi
44              - mediatek,mt7622-spi
45              - mediatek,mt8135-spi
46              - mediatek,mt8173-spi
47              - mediatek,mt8183-spi
48
49  reg:
50    maxItems: 1
51
52  interrupts:
53    maxItems: 1
54
55  clocks:
56    items:
57      - description: clock used for the parent clock
58      - description: clock used for the muxes clock
59      - description: clock used for the clock gate
60
61  clock-names:
62    items:
63      - const: parent-clk
64      - const: sel-clk
65      - const: spi-clk
66
67  mediatek,pad-select:
68    $ref: /schemas/types.yaml#/definitions/uint32-array
69    minItems: 1
70    maxItems: 4
71    items:
72      enum: [0, 1, 2, 3]
73    description:
74      specify which pins group(ck/mi/mo/cs) spi controller used.
75      This is an array.
76
77required:
78  - compatible
79  - reg
80  - interrupts
81  - clocks
82  - clock-names
83  - '#address-cells'
84  - '#size-cells'
85
86unevaluatedProperties: false
87
88examples:
89  - |
90    #include <dt-bindings/clock/mt8173-clk.h>
91    #include <dt-bindings/gpio/gpio.h>
92    #include <dt-bindings/interrupt-controller/arm-gic.h>
93    #include <dt-bindings/interrupt-controller/irq.h>
94
95    spi@1100a000 {
96      compatible = "mediatek,mt8173-spi";
97      #address-cells = <1>;
98      #size-cells = <0>;
99      reg = <0x1100a000 0x1000>;
100      interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
101      clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
102               <&topckgen CLK_TOP_SPI_SEL>,
103               <&pericfg CLK_PERI_SPI0>;
104      clock-names = "parent-clk", "sel-clk", "spi-clk";
105      cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
106      mediatek,pad-select = <1>, <0>;
107    };
108