1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/spi/fsl-imx-cspi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale (Enhanced) Configurable Serial Peripheral Interface (CSPI/eCSPI) for i.MX
8
9 maintainers:
10 - Shawn Guo <shawnguo@kernel.org>
11
12 allOf:
13 - $ref: /schemas/spi/spi-controller.yaml#
14
15 properties:
16 compatible:
17 oneOf:
18 - const: fsl,imx1-cspi
19 - const: fsl,imx21-cspi
20 - const: fsl,imx27-cspi
21 - const: fsl,imx31-cspi
22 - const: fsl,imx35-cspi
23 - const: fsl,imx51-ecspi
24 - const: fsl,imx53-ecspi
25 - items:
26 - enum:
27 - fsl,imx25-cspi
28 - fsl,imx50-cspi
29 - fsl,imx51-cspi
30 - fsl,imx53-cspi
31 - const: fsl,imx35-cspi
32 - items:
33 - const: fsl,imx8mp-ecspi
34 - const: fsl,imx6ul-ecspi
35 - items:
36 - enum:
37 - fsl,imx50-ecspi
38 - fsl,imx6q-ecspi
39 - fsl,imx6sx-ecspi
40 - fsl,imx6sl-ecspi
41 - fsl,imx6sll-ecspi
42 - fsl,imx6ul-ecspi
43 - fsl,imx7d-ecspi
44 - fsl,imx8mq-ecspi
45 - fsl,imx8mm-ecspi
46 - fsl,imx8mn-ecspi
47 - const: fsl,imx51-ecspi
48
49 reg:
50 maxItems: 1
51
52 interrupts:
53 maxItems: 1
54
55 clocks:
56 items:
57 - description: SoC SPI ipg clock
58 - description: SoC SPI per clock
59
60 clock-names:
61 items:
62 - const: ipg
63 - const: per
64
65 dmas:
66 items:
67 - description: DMA controller phandle and request line for RX
68 - description: DMA controller phandle and request line for TX
69
70 dma-names:
71 items:
72 - const: rx
73 - const: tx
74
75 fsl,spi-rdy-drctl:
76 $ref: /schemas/types.yaml#/definitions/uint32
77 description: |
78 Integer, representing the value of DRCTL, the register controlling
79 the SPI_READY handling. Note that to enable the DRCTL consideration,
80 the SPI_READY mode-flag needs to be set too.
81 Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst).
82 enum: [0, 1, 2]
83
84 required:
85 - compatible
86 - reg
87 - interrupts
88 - clocks
89 - clock-names
90
91 unevaluatedProperties: false
92
93 examples:
94 - |
95 #include <dt-bindings/clock/imx5-clock.h>
96
97 spi@70010000 {
98 #address-cells = <1>;
99 #size-cells = <0>;
100 compatible = "fsl,imx51-ecspi";
101 reg = <0x70010000 0x4000>;
102 interrupts = <36>;
103 clocks = <&clks IMX5_CLK_ECSPI1_IPG_GATE>,
104 <&clks IMX5_CLK_ECSPI1_PER_GATE>;
105 clock-names = "ipg", "per";
106 };
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