85 lines
2.4 KiB
YAML
85 lines
2.4 KiB
YAML
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/pinctrl/fsl,imx8mm-pinctrl.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Freescale IMX8MM IOMUX Controller
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Anson Huang <Anson.Huang@nxp.com>
|
||
|
|
|
||
|
|
description:
|
||
|
|
Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
|
||
|
|
for common binding part and usage.
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
const: fsl,imx8mm-iomuxc
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
# Client device subnode's properties
|
||
|
|
patternProperties:
|
||
|
|
'grp$':
|
||
|
|
type: object
|
||
|
|
description:
|
||
|
|
Pinctrl node's client devices use subnodes for desired pin configuration.
|
||
|
|
Client device subnodes use below standard properties.
|
||
|
|
|
||
|
|
properties:
|
||
|
|
fsl,pins:
|
||
|
|
description:
|
||
|
|
each entry consists of 6 integers and represents the mux and config
|
||
|
|
setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
|
||
|
|
mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
|
||
|
|
be found in <arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h>. The last
|
||
|
|
integer CONFIG is the pad setting value like pull-up on this pin. Please
|
||
|
|
refer to i.MX8M Mini Reference Manual for detailed CONFIG settings.
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32-matrix
|
||
|
|
items:
|
||
|
|
items:
|
||
|
|
- description: |
|
||
|
|
"mux_reg" indicates the offset of mux register.
|
||
|
|
- description: |
|
||
|
|
"conf_reg" indicates the offset of pad configuration register.
|
||
|
|
- description: |
|
||
|
|
"input_reg" indicates the offset of select input register.
|
||
|
|
- description: |
|
||
|
|
"mux_val" indicates the mux value to be applied.
|
||
|
|
- description: |
|
||
|
|
"input_val" indicates the select input value to be applied.
|
||
|
|
- description: |
|
||
|
|
"pad_setting" indicates the pad configuration value to be applied.
|
||
|
|
|
||
|
|
required:
|
||
|
|
- fsl,pins
|
||
|
|
|
||
|
|
additionalProperties: false
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: "pinctrl.yaml#"
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
|
||
|
|
additionalProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
# Pinmux controller node
|
||
|
|
- |
|
||
|
|
iomuxc: pinctrl@30330000 {
|
||
|
|
compatible = "fsl,imx8mm-iomuxc";
|
||
|
|
reg = <0x30330000 0x10000>;
|
||
|
|
|
||
|
|
pinctrl_uart2: uart2grp {
|
||
|
|
fsl,pins =
|
||
|
|
<0x23C 0x4A4 0x4FC 0x0 0x0 0x140>,
|
||
|
|
<0x240 0x4A8 0x000 0x0 0x0 0x140>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
...
|