[PATCH 0/3] patches to allow DTB to be appended to the ARM zImage

[Nicolas Pitre]

On Sun, 12 Jun 2011, Russell King - ARM Linux wrote:

> On Sun, Jun 12, 2011 at 05:01:22PM +0200, Arnd Bergmann wrote:
> > Of course it should override the device tree, I'm not arguing that.
> > All I'm saying is that we don't need to special-case this or support
> > both formats once the kernel is there as long as we move the information
> > into appropriate DT-representation of the same data.
> 
> You're arguing for it to be parsed by whatever fragment of assembly code
> we have to place around the zImage to merge it into DT.
> 
> And yes, it's going to have to be assembly code because we don't have a
> C environment at that point which can run in a relocatable way.

The prototype patch translating ATAGs into DT defer that processing to C 
code.  Doing that in assembly is of course madness.


Nicolas