1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/spi/cirrus,ep9301-spi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: EP93xx SoC SPI controller
8
9 maintainers:
10 - Alexander Sverdlin <alexander.sverdlin@gmail.com>
11 - Nikita Shubin <nikita.shubin@maquefel.me>
12
13 allOf:
14 - $ref: spi-controller.yaml#
15
16 properties:
17 compatible:
18 oneOf:
19 - const: cirrus,ep9301-spi
20 - items:
21 - enum:
22 - cirrus,ep9302-spi
23 - cirrus,ep9307-spi
24 - cirrus,ep9312-spi
25 - cirrus,ep9315-spi
26 - const: cirrus,ep9301-spi
27
28 reg:
29 items:
30 - description: SPI registers region
31
32 interrupts:
33 maxItems: 1
34
35 clocks:
36 items:
37 - description: SPI Controller reference clock source
38
39 dmas:
40 items:
41 - description: rx DMA channel
42 - description: tx DMA channel
43
44 dma-names:
45 items:
46 - const: rx
47 - const: tx
48
49 required:
50 - compatible
51 - reg
52 - interrupts
53 - clocks
54
55 unevaluatedProperties: false
56
57 examples:
58 - |
59 #include <dt-bindings/gpio/gpio.h>
60 #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
61 spi@808a0000 {
62 compatible = "cirrus,ep9301-spi";
63 reg = <0x808a0000 0x18>;
64 interrupt-parent = <&vic1>;
65 interrupts = <21>;
66 clocks = <&syscon EP93XX_CLK_SPI>;
67 dmas = <&dma1 10 2>, <&dma1 10 1>;
68 dma-names = "rx", "tx";
69 cs-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
70 };
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