Xavier NX external SD card hot plug in/out on custom board (JetPack 4.6)

[WayneWWW]

That is why you can refer to other posts… they already shared the answer. Also, they even use the same GPIO as your case…

SD Card on SDMMC3 signals

Hello, On my custom board hosting a Xavier NX module, I have implemented an SD Card using the SDMMC3 slot. For the SD card detection signal, I used the GPIO08. For the enable of the voltage regulator, I took the GPIO09. I am modifying the following dtsi files: kernel/hardware/nvidia/platform/t19x/jakku/kernel-dts/common/tegra194-p3509-0000-a00.dtsi added : sdhci_sd: sdhci@3440000 { mmc-ocr-mask = <0x0>; cd-inverted; cd-gpios = <&tegra_main_gpio TEGRA194_MAIN_GPIO(Q, 2) 0>; nvidia,cd-w…