Here below an example of device tree configuration used on standard DAVE's kit for the [[AXEL ULite SOM]]:
From <code>imx6ul-lynx-som0013axelulite.dtsi</code>:
<pre>
pinctrl-0 = <&pinctrl_usdhc1>;
cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
bus-width = <4>;
no-1-8-v;
keep-power-in-suspend;