Re: [22/26] MIPS: generic: Introduce generic DT-based board support

From: James Hogan
Date: Mon Nov 20 2017 - 05:26:10 EST

On Sat, Nov 18, 2017 at 07:43:25PM -0800, Guenter Roeck wrote:
> On Fri, Aug 26, 2016 at 04:37:21PM +0100, Paul Burton wrote:
> > Introduce a "generic" platform, which aims to be board-agnostic by
> > making use of device trees passed by the boot protocol defined in the
> > MIPS UHI (Universal Hosting Interface) specification. Provision is made
> > for supporting boards which use a legacy boot protocol that can't be
> > changed, but adding support for such boards or any others is left to
> > followon patches.
> >
> > Right now the built kernels expect to be loaded to 0x80100000, ie. in
> > kseg0. This is fine for the vast majority of MIPS platforms, but
> > nevertheless it would be good to remove this limitation in the future by
> > mapping the kernel via the TLB such that it can be loaded anywhere & map
> > itself appropriately.
> >
> > Configuration is handled by dynamically generating configs using
> > scripts/kconfig/, somewhat similar to the way powerpc
> > makes use of it. This allows for variations upon the configuration, eg.
> > differing architecture revisions or subsets of driver support for
> > differing boards, to be handled without having a large number of
> > defconfig files.
> >
> > Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
> Guess it is known that this patch causes failures when building
> "allmodconfig" on test systems such as 0day; it was reported by 0day
> some two months ago. nevertheless, the patch found its way into mainline
> without fix. Does anyone care, or should I simply disable "allmodconfig"
> test builds for mips ?

Hi Guenter,

I can't find any emails from 0day in relation to this patch (I've also
dug about on the kbuild-all archives without success). Could you link to
or quote the build failure you're referring to.