76 lines
1.7 KiB
YAML
76 lines
1.7 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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$id: http://devicetree.org/schemas/mmc/mmc-spi-slot.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MMC/SD/SDIO slot directly connected to a SPI bus
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maintainers:
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- Ulf Hansson <ulf.hansson@linaro.org>
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allOf:
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- $ref: "mmc-controller.yaml"
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- $ref: /schemas/spi/spi-peripheral-props.yaml
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description: |
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The extra properties used by an mmc connected via SPI.
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properties:
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compatible:
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const: mmc-spi-slot
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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voltage-ranges:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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description: |
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Two cells are required, first cell specifies minimum slot voltage (mV),
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second cell specifies maximum slot voltage (mV).
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items:
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- description: |
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value for minimum slot voltage in mV
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default: 3200
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- description: |
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value for maximum slot voltage in mV
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default: 3400
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gpios:
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description: |
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For historical reasons, this does not follow the generic mmc-controller
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binding.
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minItems: 1
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items:
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- description: Card-Detect GPIO
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- description: Write-Protect GPIO
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required:
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- compatible
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- reg
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- spi-max-frequency
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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mmc@0 {
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compatible = "mmc-spi-slot";
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reg = <0>;
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gpios = <&gpio 14 GPIO_ACTIVE_LOW>, <&gpio 15 GPIO_ACTIVE_HIGH>;
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voltage-ranges = <3300 3300>;
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spi-max-frequency = <50000000>;
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interrupts = <42>;
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interrupt-parent = <&PIC>;
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};
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};
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...
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