98 lines
2.3 KiB
YAML
98 lines
2.3 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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$id: http://devicetree.org/schemas/spi/fsl-imx-cspi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale (Enhanced) Configurable Serial Peripheral Interface (CSPI/eCSPI) for i.MX
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maintainers:
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- Shawn Guo <shawnguo@kernel.org>
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allOf:
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- $ref: "/schemas/spi/spi-controller.yaml#"
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properties:
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compatible:
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oneOf:
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- const: fsl,imx1-cspi
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- const: fsl,imx21-cspi
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- const: fsl,imx27-cspi
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- const: fsl,imx31-cspi
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- const: fsl,imx35-cspi
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- const: fsl,imx51-ecspi
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- const: fsl,imx53-ecspi
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- items:
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- enum:
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- fsl,imx50-ecspi
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- fsl,imx6q-ecspi
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- fsl,imx6sx-ecspi
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- fsl,imx6sl-ecspi
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- fsl,imx6sll-ecspi
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- fsl,imx6ul-ecspi
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- fsl,imx7d-ecspi
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- fsl,imx8mq-ecspi
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- fsl,imx8mm-ecspi
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- fsl,imx8mn-ecspi
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- fsl,imx8mp-ecspi
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- const: fsl,imx51-ecspi
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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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clocks:
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items:
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- description: SoC SPI ipg clock
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- description: SoC SPI per clock
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clock-names:
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items:
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- const: ipg
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- const: per
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dmas:
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items:
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- description: DMA controller phandle and request line for RX
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- description: DMA controller phandle and request line for TX
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dma-names:
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items:
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- const: rx
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- const: tx
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fsl,spi-rdy-drctl:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Integer, representing the value of DRCTL, the register controlling
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the SPI_READY handling. Note that to enable the DRCTL consideration,
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the SPI_READY mode-flag needs to be set too.
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Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst).
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enum: [0, 1, 2]
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/imx5-clock.h>
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spi@70010000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "fsl,imx51-ecspi";
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reg = <0x70010000 0x4000>;
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interrupts = <36>;
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clocks = <&clks IMX5_CLK_ECSPI1_IPG_GATE>,
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<&clks IMX5_CLK_ECSPI1_PER_GATE>;
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clock-names = "ipg", "per";
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};
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