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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/fsl,imx6ul-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale IMX6UL IOMUX Controller
maintainers:
- Dong Aisheng <aisheng.dong@nxp.com>
description:
Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
for common binding part and usage.
allOf:
- $ref: pinctrl.yaml#
properties:
compatible:
enum:
- fsl,imx6ul-iomuxc
- fsl,imx6ull-iomuxc-snvs
reg:
maxItems: 1
# Client device subnode's properties
patternProperties:
'grp$':
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/arm/boot/dts/imx6ul-pinfunc.h>. The last integer
CONFIG is the pad setting value like pull-up on this pin. Please
refer to i.MX6UL 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:
PAD_CTL_HYS (1 << 16)
PAD_CTL_PUS_100K_DOWN (0 << 14)
PAD_CTL_PUS_47K_UP (1 << 14)
PAD_CTL_PUS_100K_UP (2 << 14)
PAD_CTL_PUS_22K_UP (3 << 14)
PAD_CTL_PUE (1 << 13)
PAD_CTL_PKE (1 << 12)
PAD_CTL_ODE (1 << 11)
PAD_CTL_SPEED_LOW (0 << 6)
PAD_CTL_SPEED_MED (1 << 6)
PAD_CTL_SPEED_HIGH (3 << 6)
PAD_CTL_DSE_DISABLE (0 << 3)
PAD_CTL_DSE_260ohm (1 << 3)
PAD_CTL_DSE_130ohm (2 << 3)
PAD_CTL_DSE_87ohm (3 << 3)
PAD_CTL_DSE_65ohm (4 << 3)
PAD_CTL_DSE_52ohm (5 << 3)
PAD_CTL_DSE_43ohm (6 << 3)
PAD_CTL_DSE_37ohm (7 << 3)
PAD_CTL_SRE_FAST (1 << 0)
PAD_CTL_SRE_SLOW (0 << 0)
required:
- fsl,pins
additionalProperties: false
required:
- compatible
- reg
additionalProperties: false
examples:
- |
iomuxc: pinctrl@20e0000 {
compatible = "fsl,imx6ul-iomuxc";
reg = <0x020e0000 0x4000>;
mux_uart: uartgrp {
fsl,pins = <
0x0084 0x0310 0x0000 0 0 0x1b0b1
0x0088 0x0314 0x0624 0 3 0x1b0b1
>;
};
};
- |
iomuxc_snvs: pinctrl@2290000 {
compatible = "fsl,imx6ull-iomuxc-snvs";
reg = <0x02290000 0x4000>;
pinctrl_snvs_usbc_det: snvsusbcdetgrp {
fsl,pins = <
0x0010 0x0054 0x0000 0x5 0x0 0x130b0
>;
};
};
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