GPIO Issue

[Anuj Malviya]

Hello Friends

I am using following image.

bone-debian-9.3-iot-armhf-2018-03-05-4gb.img

I need to enable UART2 for my project for that I enable BB-UART2-00A0.dtbo via uEnvt.txt.

After this I ma facing gpio issues.

Before applying the overlay.

ls /sys/class/gpio

export   gpio112  gpio117  gpio2   gpio27  gpio44  gpio49  gpio61  gpio69  gpio73  gpio78  gpio86  gpiochip0
gpio10   gpio113  gpio12   gpio20  gpio3   gpio45  gpio5   gpio65  gpio7   gpio74  gpio79  gpio87  gpiochip32
gpio11   gpio114  gpio13   gpio22  gpio30  gpio46  gpio50  gpio66  gpio70  gpio75  gpio8   gpio88  gpiochip64
gpio110  gpio115  gpio14   gpio23  gpio31  gpio47  gpio51  gpio67  gpio71  gpio76  gpio80  gpio89  gpiochip96
gpio111  gpio116  gpio15   gpio26  gpio4   gpio48  gpio60  gpio68  gpio72  gpio77  gpio81  gpio9   unexport

After i apply the overlay BB-UART2-00A0.dtbo

ls /sys/class/gpio

export  gpio12  gpio13  gpiochip0  gpiochip32  gpiochip64  gpiochip96  unexport

Attached is the uEnv.txt file.

When i go through the BB-UART2-00A0.dtsi files it is enabling only 2 pins, not sure what is the issue here.

Please suggest.

Br

Anuj

[Robert Nelson]

Yes, that's a pretty new feature, which requires v4.14.x-ti and an
updated bbb-cape-overlays package:

sudo apt update
sudo apt install --only-upgrade bb-cape-overlays

debian@beaglebone:~$ cd /opt/scripts/tools/
debian@beaglebone:/opt/scripts/tools$ git pull
debian@beaglebone:/opt/scripts/tools$ sudo ./update_kernel.sh --lts-4_14

sudo reboot

Regards,

--
Robert Nelson
https://rcn-ee.com/