[U-Boot] [PATCH 2/2 RESEND] SPL: Allow user to disable CPU support library

[Marek Vasut <marek.vasut@gmail.com>]

On Friday, September 16, 2011 12:57:44 AM Scott Wood wrote:
> On 09/11/2011 11:03 PM, Marek Vasut wrote:
> > Introduce CONFIG_SPL_NO_CPU_SUPPORT_CODE to avoid compiling the CPU
> > support library. This can be useful on some setups.
> > 
> > Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> > Cc: Stefano Babic <sbabic@denx.de>
> > Cc: Wolfgang Denk <wd@denx.de>
> > Cc: Detlev Zundel <dzu@denx.de>
> > Cc: Chander Kashyap <chander.kashyap@linaro.org>
> 
> But you didn't CC these...

git send-email should handle those ?

> 
> > ---
> > 
> >  spl/Makefile |    7 ++++++-
> >  1 files changed, 6 insertions(+), 1 deletions(-)
> > 
> > diff --git a/spl/Makefile b/spl/Makefile
> > index 56d8ea1..63d1a8a 100644
> > --- a/spl/Makefile
> > +++ b/spl/Makefile
> > @@ -20,6 +20,11 @@ export CONFIG_SPL_BUILD
> > 
> >  include $(TOPDIR)/config.mk
> > 
> > +# In case we want to avoid the CPU support code, we need to define this:
> > +ifndef	CONFIG_SPL_NO_CPU_SUPPORT_CODE
> > +SPL_CPU_SUPPORT_CODE := y
> > +endif
> 
> SPL should ideally contain nothing by default.  Have options that say
> what you do want to pull in, not what you don't want.

You usually DO want to pull this in (because it contains vectoring code, really 
basic lowlevel init etc), there are only border cases where you do not want to 
do that and use your own.

Cheers

> 
> -Scott