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Commit 9cbd72e5 authored by Chao Fu's avatar Chao Fu Committed by Mark Brown
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Documentation: DT: Add Freescale DSPI driver 



This patch adds the document for DSPI driver under
Documentation/devicetree/bindings/spi/.

Signed-off-by: default avatarChao Fu <b44548@freescale.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent b36f4be3

Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt

0 → 100644
+42 −0
Original line number Diff line number Diff line 
ARM Freescale DSPI controller



Required properties:

- compatible : "fsl,vf610-dspi"

- reg : Offset and length of the register set for the device

- interrupts : Should contain SPI controller interrupt

- clocks: from common clock binding: handle to dspi clock.

- clock-names: from common clock binding: Shall be "dspi".

- pinctrl-0: pin control group to be used for this controller.

- pinctrl-names: must contain a "default" entry.

- spi-num-chipselects : the number of the chipselect signals.

- bus-num : the slave chip chipselect signal number.

Example:



dspi0@4002c000 {

	#address-cells = <1>;

	#size-cells = <0>;

	compatible = "fsl,vf610-dspi";

	reg = <0x4002c000 0x1000>;

	interrupts = <0 67 0x04>;

	clocks = <&clks VF610_CLK_DSPI0>;

	clock-names = "dspi";

	spi-num-chipselects = <5>;

	bus-num = <0>;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_dspi0_1>;

	status = "okay";



	sflash: at26df081a@0 {

		#address-cells = <1>;

		#size-cells = <1>;

		compatible = "atmel,at26df081a";

		spi-max-frequency = <16000000>;

		spi-cpol;

		spi-cpha;

		reg = <0>;

		linux,modalias = "m25p80";

		modal = "at26df081a";

	};

};