I measure the level of GPIO to be high, I want to power on to be low, how should I set the level of GPIO?
Which gpio do you want to change?
Initialize gpio01_03 as soon as uboot starts.
Do you mean GPIO1_IO03?
IMX8MQ_PAD_GPIO1_IO03__GPIO1_IO3
If you want to set it to low when u-boot start, you can set it to low in <board>.c file in u-boot source code.