Brief introduction to the Device Tree on GNU/Linux

[@surabhibub207]

The video mentions at the end about overlay device tree to avoid compiling the entire kernel for adding one new device. Where can I learn more about it? Do you have a video diving deeper into that as well?

[@johannes4gnu_linux96]

For device tree overlays i already have made some videos. This is the first one. Just follow the Playlist kzbin.info/www/bejne/j6mndpemfbl4hpo In the future I will make some more videos how to directly make changes to the device tree without overlays.

[@sergiogcollado]

Great! Thanks!

[@Jonathan-ru9zl]

Hi! Who deliver the device tree? Board firmware that contain information about the nodes?

[@johannes4gnu_linux96]

Hi. Let's take the TI's AM335x chip which is used on the beaglebone black as an example. TI offers an evaluation board for the chip and a Linux SDK for building a Linux Image for the board. The device tree is part of the SDK. If you download and install it, you can find the device tree files in ti-processor-sdk-linux-rt-am335x-evm-08.02.00.24/board-support/linux-rt-5.10.100+gitAUTOINC+204ec708dc-g204ec708dc/arch/arm/boot/dts Now if you want to build a custom PCB with the AM335x chip, you can take this device tree as an example and change it according to your needs.

[@Jonathan-ru9zl]

@@johannes4gnu_linux96 great!

[@rashidz97100]

Thank you for these videos!! Please do continue 😊

[@herrxerex8484]

sehr gut

[@floating_ghost]

Thank you !