LinuxCon + CloudOpen + ELC-E Europe 2014

This is a repeat of the initial presentation that some attendees were unable to see due to limited seating (and fire regulations).

Device tree has been decreed as the modern way to describe a board's hardware, but falls flat when faced with the problem of hardware that it-self is reconfigurable. While this is more prevalent on systems employing FPGAs, it is actually a problem for low-end boards like the Beaglebone & any other device that exhibits flexibility in configuration its interfaces. Limitation of in-kernel DT support make it hard to apply batches of changes and revert in need be.

The new Transaction Device Tree + Overlays patch-sets overcome these problems and are intended to land in mainline during the next few major revisions.

Pantelis Antoniou will review the extensive changes and will discuss the major changes coming in the DT support of the kernel.