66 lines
1.4 KiB
YAML
66 lines
1.4 KiB
YAML
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# 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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$id: http://devicetree.org/schemas/spi/fsl,espi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale eSPI (Enhanced Serial Peripheral Interface) controller
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maintainers:
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- J. Neuschäfer <j.ne@posteo.net>
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properties:
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compatible:
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const: fsl,mpc8536-espi
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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fsl,espi-num-chipselects:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [ 1, 4 ]
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description: The number of the chipselect signals.
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fsl,csbef:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 15
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description: Chip select assertion time in bits before frame starts
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fsl,csaft:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 15
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description: Chip select negation time in bits after frame ends
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required:
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- compatible
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- reg
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- interrupts
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- fsl,espi-num-chipselects
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allOf:
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- $ref: spi-controller.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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spi@110000 {
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compatible = "fsl,mpc8536-espi";
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reg = <0x110000 0x1000>;
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#address-cells = <1>;
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#size-cells = <0>;
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interrupts = <53 IRQ_TYPE_EDGE_FALLING>;
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fsl,espi-num-chipselects = <4>;
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fsl,csbef = <1>;
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fsl,csaft = <1>;
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};
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...
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