How to enable spidev on i.MX6 using kernel 3.14.28?

yaolinchang — Tue, 07 Jul 2015 11:33:37 GMT

Hi All,

We run imx-test/mxc_spi_test/mxc_spi_test1.c to test spi device, but we can't find any spi device node in /dev/

We also can't find any "spidev" device name in device tree.

Our sample code of device tree as below:

Freescale default setting is connected to nor flash.

Can anyone tell me what is happen ? And how should I modify device tree?

================================

<imx6qdl.dtsi>

ecspi1: ecspi@02008000 {

#address-cells = <1>;

#size-cells = <0>;

compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";

reg = <0x02008000 0x4000>;

interrupts = <0 31 IRQ_TYPE_LEVEL_HIGH>;

clocks = <&clks IMX6QDL_CLK_ECSPI1>,

<&clks IMX6QDL_CLK_ECSPI1>;

clock-names = "ipg", "per";

status = "disabled";

};

=================================

<imx6qdl-sabresd.dtsi >

&ecspi1 {

fsl,spi-num-chipselects = <1>;

cs-gpios = <&gpio4 9 0>;

pinctrl-names = "default";

pinctrl-0 = <&pinctrl_ecspi1>;

status = "okay";

flash: m25p80@0 {

#address-cells = <1>;

#size-cells = <1>;

compatible = "st,m25p32";

spi-max-frequency = <20000000>;

reg = <0>;

};

Thanks,

Best Regards,

Yao

Re: How to enable spidev on i.MX6 using kernel 3.14.28?

igorpadykov — Wed, 08 Jul 2015 13:56:20 GMT

Hi YaoLin

could you try settings as shown below

How to enable spidev on i.MX6 using kernel 3.10.9?

VAR-SOM-MX6 Yocto Unit Testing V5 b2 - Variscite Wiki

Best regards

igor

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How to enable spidev on i.MX6 using kernel 3.14.28?

Re: How to enable spidev on i.MX6 using kernel 3.14.28?