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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/microchip,mpfs-pinctrl-mssio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Microchip Polarfire SoC MSSIO pinctrl
maintainers:
- Conor Dooley <conor.dooley@microchip.com>
properties:
compatible:
oneOf:
- const: microchip,mpfs-pinctrl-mssio
- items:
- const: microchip,pic64gx-pinctrl-mssio
- const: microchip,mpfs-pinctrl-mssio
reg:
maxItems: 1
pinctrl-use-default: true
patternProperties:
'-cfg$':
type: object
additionalProperties: false
patternProperties:
'-pins$':
type: object
additionalProperties: false
allOf:
- $ref: pincfg-node.yaml#
- $ref: pinmux-node.yaml#
properties:
pins:
description:
The list of IOs that properties in the pincfg node apply to.
function:
description:
A string containing the name of the function to mux for these
pins. The "reserved" function tristates a pin.
enum: [ sd, emmc, qspi, spi, usb, uart, i2c, can, mdio, misc
reserved, gpio, fabric-test, tied-low, tied-high, tristate ]
bias-bus-hold: true
bias-disable: true
bias-pull-down: true
bias-pull-up: true
input-schmitt-enable: true
low-power-enable: true
drive-strength:
enum: [ 2, 4, 6, 8, 10, 12, 16, 20 ]
power-source:
description:
Which bank voltage to use. This cannot differ for pins in a
given bank, the whole bank uses the same voltage.
enum: [ 1200000, 1500000, 1800000, 2500000, 3300000 ]
microchip,clamp-diode:
$ref: /schemas/types.yaml#/definitions/flag
description:
Reflects the "Clamp Diode" setting in the MSS Configurator for
this pin. This setting controls whether or not input voltage
clamping should be enabled.
microchip,ibufmd:
$ref: /schemas/types.yaml#/definitions/uint32
default: 0
description:
Reflects the "IBUFMD" bits in the MSS Configurator output files
for this pin.
required:
- pins
- function
- power-source
required:
- compatible
- reg
additionalProperties: false
examples:
- |
pinctrl@204 {
compatible = "microchip,mpfs-pinctrl-mssio";
reg = <0x204 0x7c>;
ikrd-spi1-cfg {
spi1-pins {
pins = <30>, <31>, <32>, <33>;
function = "spi";
bias-pull-up;
drive-strength = <8>;
power-source = <3300000>;
microchip,ibufmd = <0x1>;
};
};
};
...
|
