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imx6UL mmc wp

Question asked by Anantha Ramachandran on Sep 21, 2018



I'm using i.MX6UL processor. I want to enable write protection for the usdhc1 [mmc].

But setting the register MX6UL_PAD_CSI_DATA04__USDHC1_WP to proper value. but still seeing write protection is not enabled for the sd card connected.


I even tried adding following line to DTS file:


&usdhc1 {
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_usdhc1>;
    cd-gpios = <&gpio2 21 0>;
    wp-gpios = <&gpio4 25 0>;
    status = "okay";


But still it didnt work.


Am I missing any setting further? Can you please help me out.



Anantha R