Toggle the gpio

Chethan — Tue, 18 May 2021 07:12:39 GMT

Hi,

I am using LS1046a board for my application.

Now i need to enable the GPIO4_10 in dtsi file and i need to check in the sys entries like below.

echo xxx > /sys/class/gpio/export
echo in > /sys/class/gpio/gpioxxx/direction
cat /sys/class/gpio/gpioxxx/value

so please provide the device tree of GPIO4_10 of dtsi file and to verify using sys entries

Thanks & Regards
Chethan GR

Re: Toggle the gpio

ufedor — Tue, 18 May 2021 09:40:41 GMT

GPIOs are already configured in the "fsl-ls1046a.dtsi" which could be used as a reference:

To make it possible to use GPIO4_10 it is required to set SCFG_RCWPMUXCR0[IIC3_SCL]=001.

For further testing (gpio toggling) refer to the Layerscape Software Development Kit User Guide: