ACPI vs DT at runtime

Grant Likely grant.likely at
Tue May 6 08:27:25 PDT 2014

On Mon, 05 May 2014 09:06:14 +0200, Alexander Holler <holler at> wrote:
> Am 22.11.2013 13:00, schrieb Pantelis Antoniou:
> > As one that's going to be dealing with this, please don't take the DTS
> > files from the kernel.
> >
> > If you do this, I can guarantee that within a year almost no ARM board using DT
> > will boot a mainline kernel.
> >
> > The reason is that vendors have enough trouble (and failing) tracking a single
> > tree, adding yet another will just end to the vendor trees as far as the eye can see.
> >
> > Maybe, maybe, EVMs from silicon vendors will still boot, but I doubt any other
> > customer board will work.
> A bit late (I don't follow the ML (or what happens in the ARM world) 
> closely, but as I've recently read that ARM64 will go UEFI and ACPI, I 
> wonder what was the reasoning behind that decision.

ARM64 will include support for UEFI an ACPI, but U-Boot and DT are not
going away. Really the only market segment that will care about ACPI is
ARM servers. Nobody else (embedded, mobile) needs to worry about it.


More information about the linux-arm-kernel mailing list