Merge dtc

[Kumar Gala]

On Oct 16, 2007, at 1:00 AM, Benjamin Herrenschmidt wrote:

>
>> You must have missed the thread where various people where  
>> complaining
>> about how powerpc is the only architecture where they can't build
>> kernels without some external tool that they don't have, etc., etc.
>>
>> We thought about shipping compiled DTBs for various platforms, but  
>> the
>> problem there is that they can't be updated with a patch, so whoever
>> commits a patch to the relevant .dts would have to remember to run  
>> dtc
>> and commit the updated .dtb as well, which seems a bit error-prone.
>>
>> In the end, dtc isn't all that much code.  We already have several
>> other programs that run on the host in the process of making a  
>> zImage,
>> such as wrapper, hack-coff, and addnote, not to mention the various C
>> programs that are part of Kbuild, and unifdef, kallsyms, etc.
>>
>> So I think there definitely is a precedent for including dtc.
>
> Note that I just tried to build a 4xx kernel today ... and failed  
> due to
> the lack of mkimage ..
>
> Another one that we need to either add to the kernel or make the
> building of cuImage's optional.

I think if we add dtc we add mkimage since its even smaller.

- k