[U-Boot] Removing the need for boards.cfg

[Simon Glass]

Hi Tom,

On 8 August 2014 07:04, Tom Rini <trini at ti.com> wrote:
> On Fri, Aug 01, 2014 at 12:48:44PM +0100, Simon Glass wrote:
>
>> Hi,
>>
>> At present, as a work-around, we generate boards.cfg if needed. This
>> is quite a slow process since each board config must be fully
>> processed.
>>
>> What can we do to improve this? We only need a small number of options
>> in order to start buildman - things like CONFIG_SYS_ARCH,
>> CONFIG_SYS_CPU, etc.
>>
>> I wonder if we could run a script which adds these to the defconfigs
>> for each board and then apply a patch to mainline? Would that require
>> removing the options from the config.h files? Or could we do that
>> later as a separate step?
>
> I wonder (and I haven't had my coffee nor dug into this much more yet)
> about using say https://github.com/ulfalizer/Kconfiglib to have buildman
> parse all configs/ and then use that information to build what's been
> asked (depending on how long the reading+parsing takes).  If it's
> relatively quick, that would be a big argument in favour of dropping
> MAKEALL.

Well I've had my wine but it seems to parse the Kconfig files rather
than the #includes that are part of U-Boot's system. Unless I'm
missing something, we would still need to find out things like the CPU
type, even with that tool.

Regards,
Simon