Re: [U-Boot] [RFC] Kbuild support for ARM FIT images

[Stephen Warren <swarren@wwwdotorg.org>]

On 02/21/2013 04:11 PM, Jason Gunthorpe wrote:
> On Thu, Feb 21, 2013 at 05:05:54PM -0500, Nicolas Pitre wrote:
...
>> The DT is meant to describe hardware.  As far as I know, the hardware I 
>> own seems to be rather static and stable, and unlike software there is 
>> no way I can change it (soldering irons don't count).
> 
> .. and the patching I mention above are largely driven by either a
> change in understanding of how OF should describe the hardware, or a
> change in understanding of how the driver should treat the
> hardware.
> 
> The recent patching for the tegra PCI-E bridge is instructive in this
> regard, Theirry learned how to drive the chip in a way that creates a
> single PCI domain - this necessitates a change in how the DT models
> that hardware block.

While I certainly don't disagree with the sentiment of your email, Tegra
PCIe is a bad example. There is no finalized DT binding yet for the
Tegra PCIe HW. Thierry is in the process of defining it for the first time.