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