Re: [ptxdist] [PATCH 2/7] u-boot: add support for oldconfig/menuconfig

[Alexander Dahl <ada@thorsis.com>]

Hei hei,

Am Dienstag, 16. Oktober 2018, 09:52:55 CEST schrieb Michael Olbrich:
> On Wed, Oct 10, 2018 at 02:03:33PM +0200, Ahmad Fatoum wrote:
> > while at it, remove U_BOOT_PATH, because it's PATH=$(CROSS_PATH) already
> > by default.
> > 
> > Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> > ---
> > 
> >  rules/u-boot.make | 42 ++++++++++++++++++++++++++++++++++--------
> >  1 file changed, 34 insertions(+), 8 deletions(-)
> > 
> > diff --git a/rules/u-boot.make b/rules/u-boot.make
> > index aa7a01ca8fea..46cfc192825a 100644
> > --- a/rules/u-boot.make
> > +++ b/rules/u-boot.make
> > @@ -26,6 +26,9 @@ U_BOOT_SOURCE	:= $(SRCDIR)/$(U_BOOT).$(U_BOOT_SUFFIX)
> > 
> >  U_BOOT_DIR	:= $(BUILDDIR)/$(U_BOOT)
> >  U_BOOT_LICENSE	:= GPL-2.0-only
> > 
> > +U_BOOT_CONFIG	:= $(call ptx/in-platformconfigdir, \
> > +		$(call remove_quotes, $(PTXCONF_U_BOOT_CONFIG)))
> 
> So, I'm pretty sure that the u-boot 'config' was simply a make target in
> the past, not a config file.
> Has this changed for all target or do we need an option to support both?

You may need both. U-Boot has started introducing KConfig some time ago and is 
in the (long) process of migrating all options to it. What you provide as make 
target to recent U-Boot versions is actually a KConfig defconfig which 
overwrites your .config and which is somehow magically merged with 
preprocessor defines in includes/configs/yourboardname.h until the migration 
process is done. (Correct me, if I understood that wrong.)

What I currently do is on a u-boot clone apart from ptxdist: menuconfig, then 
savedefconfig, copy that over, commit in my u-boot tree, export patches and 
use it as a defconfig make target in ptxdist.

Greets
Alex


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