[U-Boot] [PATCH 2/2] SPL: Allow ARM926EJS to avoid compiling in the CPU support code

Marek Vasut
2011-10-21T22:46:49Z

On Saturday, October 22, 2011 12:44:06 AM Albert ARIBAUD wrote:
> Le 22/10/2011 00:00, Marek Vasut a ?crit :
> > On Friday, October 21, 2011 11:52:23 PM Albert ARIBAUD wrote:
> >> Hi Marek,
> >>
> >> Le 21/10/2011 22:44, Marek Vasut a ?crit :
> >>> On Thursday, October 06, 2011 02:13:26 AM Marek Vasut wrote:
> >>>> This allows the SPL to avoid compiling in the CPU support code.
> >>>>
> >>>> 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: Scott Wood<scottwood@freescale.com>
> >>>> ---
> >>>>
> >>>> arch/arm/cpu/arm926ejs/Makefile | 7 +++++++
> >>>> 1 files changed, 7 insertions(+), 0 deletions(-)
> >>>>
> >>>> diff --git a/arch/arm/cpu/arm926ejs/Makefile
> >>>> b/arch/arm/cpu/arm926ejs/Makefile index 930e0d1..3f9b0f1 100644
> >>>> --- a/arch/arm/cpu/arm926ejs/Makefile
> >>>> +++ b/arch/arm/cpu/arm926ejs/Makefile
> >>>> @@ -28,6 +28,13 @@ LIB = $(obj)lib$(CPU).o
> >>>>
> >>>> START = start.o
> >>>> COBJS = cpu.o
> >>>>
> >>>> +ifdef CONFIG_SPL_BUILD
> >>>> +ifdef CONFIG_SPL_NO_CPU_SUPPORT_CODE
> >>>> +START :=
> >>>> +COBJS :=
> >>>> +endif
> >>>> +endif
> >>>> +
> >>>>
> >>>> SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
> >>>> OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))
> >>>> START := $(addprefix $(obj),$(START))
> >>>
> >>> Hi Albert,
> >>>
> >>> can we get this applied please?
> >>
> >> I still don't understand what this is supposed to do -- why not linking
> >> this code is required.
> >>
> >> Amicalement,
> >
> > Hi Albert,
> >
> > I use very different start.S in SPL. And I don't need cpu.o at all.
>
> That I understand; but is there a /problem/ in linking cpu.o in?

I suppose it'll be optimized out at link time ?

Cheers