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1 | # SPDX-License-Identifier: GPL-2.0 |
2 | %YAML 1.2 | |
3 | --- | |
4 | $id: http://devicetree.org/schemas/pinctrl/fsl,imx8mn-pinctrl.yaml# | |
5 | $schema: http://devicetree.org/meta-schemas/core.yaml# | |
6 | ||
7 | title: Freescale IMX8MN IOMUX Controller | |
8 | ||
9 | maintainers: | |
10 | - Anson Huang <Anson.Huang@nxp.com> | |
11 | ||
12 | description: | |
13 | Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory | |
14 | for common binding part and usage. | |
15 | ||
16 | properties: | |
17 | compatible: | |
18 | const: fsl,imx8mn-iomuxc | |
19 | ||
20 | reg: | |
21 | maxItems: 1 | |
22 | ||
23 | # Client device subnode's properties | |
24 | patternProperties: | |
25 | 'grp$': | |
26 | type: object | |
27 | description: | |
28 | Pinctrl node's client devices use subnodes for desired pin configuration. | |
29 | Client device subnodes use below standard properties. | |
30 | ||
31 | properties: | |
32 | fsl,pins: | |
33 | description: | |
34 | each entry consists of 6 integers and represents the mux and config | |
35 | setting for one pin. The first 5 integers <mux_reg conf_reg input_reg | |
36 | mux_val input_val> are specified using a PIN_FUNC_ID macro, which can | |
37 | be found in <arch/arm64/boot/dts/freescale/imx8mn-pinfunc.h>. The last | |
38 | integer CONFIG is the pad setting value like pull-up on this pin. Please | |
39 | refer to i.MX8M Nano Reference Manual for detailed CONFIG settings. | |
3d21a460 RH |
40 | $ref: /schemas/types.yaml#/definitions/uint32-matrix |
41 | items: | |
42 | items: | |
43 | - description: | | |
44 | "mux_reg" indicates the offset of mux register. | |
45 | - description: | | |
46 | "conf_reg" indicates the offset of pad configuration register. | |
47 | - description: | | |
48 | "input_reg" indicates the offset of select input register. | |
49 | - description: | | |
50 | "mux_val" indicates the mux value to be applied. | |
51 | - description: | | |
52 | "input_val" indicates the select input value to be applied. | |
53 | - description: | | |
54 | "pad_setting" indicates the pad configuration value to be applied. | |
f4a776f7 AH |
55 | |
56 | required: | |
57 | - fsl,pins | |
58 | ||
59 | additionalProperties: false | |
60 | ||
61 | required: | |
62 | - compatible | |
63 | - reg | |
64 | ||
65 | additionalProperties: false | |
66 | ||
67 | examples: | |
68 | # Pinmux controller node | |
69 | - | | |
70 | iomuxc: pinctrl@30330000 { | |
71 | compatible = "fsl,imx8mn-iomuxc"; | |
72 | reg = <0x30330000 0x10000>; | |
73 | ||
74 | pinctrl_uart2: uart2grp { | |
75 | fsl,pins = | |
76 | <0x23C 0x4A4 0x4FC 0x0 0x0 0x140>, | |
77 | <0x240 0x4A8 0x000 0x0 0x0 0x140>; | |
78 | }; | |
79 | }; | |
80 | ||
81 | ... |