I want to change sdmmc1 pad valtage to 1800mV，how to change it in Linux device tree, thanks.
please access Jetson AGX Orin Series Pinmux, you should update the [I/O Block Voltage] and generate DT files to update the board accordingly.
please also check developer guide. Changing the Pinmux for reference, thanks
I add the dtsi file and update to the board, but the voltage is also 3.3V. The dtsi as attachment. In tegra234-p3701-0004-p3737-0000.dts file include Orin-jetson_agx_orin1.5_1.8-padvoltage-default.dtsi.
Orin-jetson_agx_orin1.5_1.8-padvoltage-default.dtsi (1.4 KB)
tegra234-p3701-0004-p3737-0000.dts (6.5 KB)
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