spi interface does not show up as expected

Embedded Devices Linux
, ,
1

Hi,

I’m working on a platform based on the ccimx6ulstarter and am interested in utilization of the spi devices as /dev/spi.
I have the following in my dts file:
&ecspi1 {
// PPTEST
fsl,spi-num-chipselects = <1>;
//cs-gpios = <&gpio4 26 GPIO_ACTIVE_LOW>;
//num-cs = <1>;
// PPTEST END
pinctrl-names = “default”;
status = “okay”;

/*
 * Configure the GPIO that you selected as 'slave select'.
 */
//cs-gpios = &lt;&amp;gpio3 26 GPIO_ACTIVE_LOW&gt;;

/*
 * ECSPI1 (as master)
 */
pinctrl-0 = &lt;&amp;pinctrl_ecspi1&gt;;

/*
 * Reference block.
 *
 * Add your slave devices here. Next is an example of spidev.
 * Expect a harmless kernel warning if you enable spidev as slave.
 */
spidev@0 {
	reg = &lt;0&gt;;
	compatible = "linux,spidev";
	spi-max-frequency = &lt;1000000&gt;;
};

};

&ecspi4 {
// PPTEST
//fsl,spi-num-chipselects = <1>; not mentioned in iomux
num-cs = <1>;
cs-gpios = <&gpio4 17 GPIO_ACTIVE_LOW>;
// PPTEST END
pinctrl-names = “default”;
status = “okay”;

/*
 * Configure the GPIO that you selected as 'slave select'.
 */
//cs-gpios = &lt;&amp;gpio3 26 GPIO_ACTIVE_LOW&gt;;

/*
 * ECSPI4 (as master)
 */
pinctrl-0 = &lt;&amp;pinctrl_ecspi4&gt;;

/*
 * Reference block.
 *
 * Add your slave devices here. Next is an example of spidev.
 * Expect a harmless kernel warning if you enable spidev as slave.
 */
spidev@0 {
	reg = &lt;0&gt;;
	compatible = "linux,spidev";
	spi-max-frequency = &lt;1000000&gt;;
};

};
yet, I only get:
/dev/spidev2.0 after

modprobe spidev

but I’d expect /dev/spidev1.0 and /dev/spidev4.0, why is this?
The complete dts can be seen here: https://pastebin.com/C9MxJLCg
I’ve copied it to:
tmp/work-shared/ccimx6ulstarter/kernel-source/arch/arm/boot/dts/imx6ul-ccim
x6ulstarter-id129.dts and invoked:
. dey-setup-environment
bitbake -c compile -f linux-dey
bitbake -C compile virtual/kernel
bitbake dey-image-qt
bitbake core-image-base
to rebuild.