Get /dev/ttyAML1 back on bookworm

[johmue]

Hi,

 

I've been using the /dev/ttyAML1 UART port on my Odroid N2+ at the GPIO pins 8 and 10 with buster. With the update to bullseye, the /dev/ttyAML1 device disappeared. Also now in bookworm it is no longer present.

 

Now I happen to need the UART at GPIO 8 and 10 again and did some more persistent research and came across this post over in the DietPI forum. It provided an alternative meson-g12b-odroid-n2-plus.dtb which I installed in my system. Since then my /dev/ttyAML1 device is back and I can use the UART at GPIO 8 and 10 as I wished.

 

However, I am a bit nervous, since I just installed some binary dtb file to my system at a path which is owned by the linux-dtb-current-meson64 package. So it is endangered by a system update.

 

Is there an "official" way to get back my /dev/AML1 UART device which is sustainable?

 

Thank you very much

Edited April 19 by johmue

[usual user]

20 hours ago, johmue said:

Is there an "official" way to get back my /dev/AML1 UART device which is sustainable?

meson-g12b-odroid-n2-plus.dtb is a base DTB with a static applied overlay.
In your mentioned thread at post 23 is a reference to a parallel thread where the overlay source is provided.
So prepare a PR so that the overlay can be included in Armbian.
You'll probably reap tons of grateful users who have been waiting for someone to make the effort.

[allanmac]

I posted a solution in this forum.

 

I'd like to prepare a PR to add this to the existing AmLogic overlays.

Edited September 24 by allanmac
- add link

[tis_a_gift]

@allanmacWhere can I find your solution? I'm in the same boat with a missing /dev/ttyAML1. Thak you.