[Buildroot] [PATCH] u-boot: 2015.07 - fix creation of .config

[Yann E. MORIN <yann.morin.1998@free.fr>]

Alexey, All,

On 2015-08-17 06:37 +0000, Alexey Brodkin spake thusly:
> On Sun, 2015-08-16 at 23:43 +0200, J?rg Krause wrote:
> > Hi Thomas, Alexey,
> > 
> > On Mi, 2015-08-12 at 10:23 +0200, Thomas Petazzoni wrote:
> > > Dear Alexey Brodkin,
> > > 
> > > On Tue, 11 Aug 2015 12:20:01 +0000, Alexey Brodkin wrote:
> > > 
> > > > Any chance for this one to be applied?
> > > > Note without this change or anything similar U-Boot from
> > > > snsp_axs10x_defconfig fails to config.
> > > 
> > > I haven't had the time to look into this in detail. It would be great
> > > if Yann, or J?rg could have a look. I remain unhappy with solving
> > > such
> > > a problem by using a patch against U-Boot 2015.07, because it means
> > > anyone specifying a slightly different U-Boot version (but based on
> > > 2015.07) will still have the problem.
> > 
> > It looks like upstream [1] does not revert this patch but fixes the
> > problem with this patch [2]. Alexey, does this patch solves your
> > problem?
> > 
> > Best regards
> > J?rg Krause
> > 
> > 
> > [1]
> > https://www.mail-archive.com/u-boot at lists.denx.de/msg179681.html 
> > 
> > [2]
> > http://patchwork.ozlabs.org/patch/502793/
> 
> The thing is [2] solves problem only for ARM, while other arches are still
> affected. And that means ARC is not cured by that patch.
> 
> Indeed proper fix is to patch all arches in the same way,
> i.e. select default option for each and every architecture in U-Boot.
> 
> But speaking about Buildroot that approach has at least 2 downsides:
>  1) Not all arches are fixed upstream so in Buildroot we'll have patches
>     that are not there in upstream yet.
> 
>  2) We'll have quite a few patches in Buildroot for U-boot each fixing
>     a separate arch.
> 
> If (1) and (2) are OK for Buildroot I'll try to come up with those patches ASAP.
> 
> My initial approach was IMHO the cleanest and simplest. But if it doesn't work
> we'll do another fix :)

OK, chiming in...

I guess removing the "optional" keywork would be the simplest solution,
indeed.

But then I'm afraid that defconfig files bundled with U-Boot will no
longer work. If they still work, then I'm OK for having a local patch
that reverts upstream's (until upstream fixes all of their archs).

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'