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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/fsl-imx-cspi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale (Enhanced) Configurable Serial Peripheral Interface (CSPI/eCSPI) for i.MX
maintainers:
- Shawn Guo <shawnguo@kernel.org>
allOf:
- $ref: "/schemas/spi/spi-controller.yaml#"
properties:
compatible:
oneOf:
- const: fsl,imx1-cspi
- const: fsl,imx21-cspi
- const: fsl,imx27-cspi
- const: fsl,imx31-cspi
- const: fsl,imx35-cspi
- const: fsl,imx51-ecspi
- const: fsl,imx53-ecspi
- items:
- const: fsl,imx8mp-ecspi
- const: fsl,imx6ul-ecspi
- items:
- enum:
- fsl,imx50-ecspi
- fsl,imx6q-ecspi
- fsl,imx6sx-ecspi
- fsl,imx6sl-ecspi
- fsl,imx6sll-ecspi
- fsl,imx6ul-ecspi
- fsl,imx7d-ecspi
- fsl,imx8mq-ecspi
- fsl,imx8mm-ecspi
- fsl,imx8mn-ecspi
- const: fsl,imx51-ecspi
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: SoC SPI ipg clock
- description: SoC SPI per clock
clock-names:
items:
- const: ipg
- const: per
dmas:
items:
- description: DMA controller phandle and request line for RX
- description: DMA controller phandle and request line for TX
dma-names:
items:
- const: rx
- const: tx
fsl,spi-rdy-drctl:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Integer, representing the value of DRCTL, the register controlling
the SPI_READY handling. Note that to enable the DRCTL consideration,
the SPI_READY mode-flag needs to be set too.
Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst).
enum: [0, 1, 2]
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/imx5-clock.h>
spi@70010000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,imx51-ecspi";
reg = <0x70010000 0x4000>;
interrupts = <36>;
clocks = <&clks IMX5_CLK_ECSPI1_IPG_GATE>,
<&clks IMX5_CLK_ECSPI1_PER_GATE>;
clock-names = "ipg", "per";
};
|
