Subject: [PATCH 1/3] ARM:lib32: add architected timer

[Sascha Hauer]

On Fri, Mar 03, 2023 at 09:23:13AM +0000, Renaud Barbier wrote:
> > On 01.03.23 17:59, Renaud Barbier wrote:
> > > Subject: [PATCH 1/3] ARM:lib32: add architected timer
> > >
> > > In preparation for the introduction of the LS1021A support, add a
> > > specific timer support based on the LS1046A support so that delays can
> > > be used in the PBL.
> > >
> > > Signed-off-by: Renaud Barbier <renaud.barbier at ametek.com>
> > > ---
> > >  arch/arm/lib32/Makefile |  1 +
> > >  arch/arm/lib32/pbl.c    | 17 +++++++++++++++++
> > >  include/clock.h         |  2 ++
> > >  3 files changed, 20 insertions(+)
> > >  create mode 100644 arch/arm/lib32/pbl.c
> > >
> > > diff --git a/arch/arm/lib32/Makefile b/arch/arm/lib32/Makefile index
> > > 82507fffc0..1be8d70c45 100644
> > > --- a/arch/arm/lib32/Makefile
> > > +++ b/arch/arm/lib32/Makefile
> > > @@ -31,6 +31,7 @@ extra-y += barebox.lds
> > >  pbl-y        += lib1funcs.o
> > >  pbl-y        += ashldi3.o
> > >  pbl-y        += div0.o
> > > +pbl-y        += pbl.o
> > 
> > I think we need a CFLAGS_pbl.o := -march=armv7-a here, otherwise this would
> > break builds of non-ARMv7 platforms.
> > 
> > See arm_architected_timer.o in drivers/clocksource. Also, perhaps you should
> > rename the file to arm_architected_timer.c as well?
> > 
> > 
> 
> Would something like below makes sense in arch/arm/lib32/Makefile:
> 
> pbl-$(CONFIG_CLOCKSOURCE_ARM_ARCHITECTED_TIMER) += arm_architected_timer.o
> ifeq ($(CONFIG_CPU_32v7),y)
> CFLAGS_arm_architected_timer.o := -march=armv7-a
> endif

I don't see what the ifeq is needed for. I think you can drop it.

Sascha

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