TX2 JetPack4.6 F20 not read low level

Hi everyone,
I use TX2 installed Jetpack4.6 I set F20 pin SDCARD_WP as input pin, but read data always high even the pin connect to gound. The pin mux in dts as below, how to fix this issue? thanks.

pinmux@2430000 {
    gpio_edp1_pp4 { // TODO
        nvidia,pins = "gpio_edp1_pp4";
        nvidia,function = "rsvd0";
        nvidia,pull = <TEGRA_PIN_PULL_NONE>;
        nvidia,tristate = <TEGRA_PIN_DISABLE>;
        nvidia,enable-input = <TEGRA_PIN_ENABLE>;
        nvidia,lpdr = <TEGRA_PIN_DISABLE>;
    };
};

hello kenny_234,

please access Jetson TX2 Series OEM Product Design Guide, and check [Figure 36. SD Card Socket Connection Example] to review the pin connection diagram.

Hi Jerry,
I found that the D00 revision tx2 module works well, but D02 revision tx2 module can’t read low level. Are there any differences between the two modules? Thanks.

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

What do you mean the D00 and D02 module? Can you share a photo of two modules with part number?

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