On RDU1, sdhc1 is used for eMMC, and that is 3.3V only. Thus configure device node not to probe it as SD/SDIO and not try 1.8V.
Signed-off-by: Nikita Yushchenko <nikita.yo...@cogentembedded.com> --- arch/arm/boot/dts/imx51-zii-rdu1.dts | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/imx51-zii-rdu1.dts b/arch/arm/boot/dts/imx51-zii-rdu1.dts index 0c99ac04ad08..ad2a7c9b203e 100644 --- a/arch/arm/boot/dts/imx51-zii-rdu1.dts +++ b/arch/arm/boot/dts/imx51-zii-rdu1.dts @@ -462,7 +462,10 @@ pinctrl-names = "default"; pinctrl-0 = <&pinctrl_esdhc1>; bus-width = <4>; + no-1-8-v; non-removable; + no-sdio; + no-sd; status = "okay"; }; -- 2.11.0