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Diffstat (limited to 'Documentation/devicetree/bindings/spi/fsl,espi.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/fsl,espi.yaml | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/fsl,espi.yaml b/Documentation/devicetree/bindings/spi/fsl,espi.yaml new file mode 100644 index 000000000000..d267bbfaf02f --- /dev/null +++ b/Documentation/devicetree/bindings/spi/fsl,espi.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/fsl,espi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale eSPI (Enhanced Serial Peripheral Interface) controller + +maintainers: + - J. Neuschäfer <j.ne@posteo.net> + +properties: + compatible: + const: fsl,mpc8536-espi + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,espi-num-chipselects: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 1, 4 ] + description: The number of the chipselect signals. + + fsl,csbef: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Chip select assertion time in bits before frame starts + + fsl,csaft: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Chip select negation time in bits after frame ends + +required: + - compatible + - reg + - interrupts + - fsl,espi-num-chipselects + +allOf: + - $ref: spi-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + spi@110000 { + compatible = "fsl,mpc8536-espi"; + reg = <0x110000 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <53 IRQ_TYPE_EDGE_FALLING>; + fsl,espi-num-chipselects = <4>; + fsl,csbef = <1>; + fsl,csaft = <1>; + }; + +... |