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How set GPIO high at boot time on imx6ul

Question asked by Mihaita Ivascu on Jul 18, 2018
Latest reply on Jul 19, 2018 by igorpadykov



     I would need to set some TAMPER GPIOs at boot time: MX6UL_PAD_SNVS_TAMPER4__GPIO5_IO06, e


     It is enough to do it in the barebox device tree setting them ACTIVE HIGH. If so where exactly in the device tree?


     Also I am trying to assign some signals to different GPIOs as the default GPIOs are used by other kernel modules.

     I could not find programming model for imx6ul or GPIO details in the hardware manual/application processor manual.

     Could somebody point me to the imx6ul documentation that explains GPIOs registers and functions ?