[U-Boot] [PATCH v2 02/10] tegra20: move tegra20 SoC code to arch/arm/cpu/tegra20-common

[Allen Martin <amartin@nvidia.com>]

On Wed, Jun 06, 2012 at 09:16:46AM -0700, Stephen Warren wrote:
> On 06/05/2012 03:20 PM, Allen Martin wrote:
> > In preparation for splitting out the armv4t code from tegra20, move
> > the tegra20 SoC code to arch/arm/cpu/tegra20-common.  This code will
> > be compiled armv4t for the arm7tdmi and armv7 for the cortex A9.
> 
> > diff --git a/arch/arm/cpu/armv7/tegra20/Makefile b/arch/arm/cpu/tegra20-common/Makefile
> 
> >  # The AVP is ARMv4T architecture so we must use special compiler
> >  # flags for any startup files it might use.
> > -CFLAGS_arch/arm/cpu/armv7/tegra2/ap20.o += -march=armv4t
> > -CFLAGS_arch/arm/cpu/armv7/tegra2/clock.o += -march=armv4t
> > -CFLAGS_arch/arm/cpu/armv7/tegra2/warmboot_avp.o += -march=armv4t
> > +CFLAGS_arch/arm/cpu/tegra2-common/ap20.o += -march=armv4t
> > +CFLAGS_arch/arm/cpu/tegra2-common/clock.o += -march=armv4t
> 
> Don't you still need the CFLAGS override for warmboot_avp.o here too? I
> assume that a later patch will just remove it, but it'd be nice if each
> patch along the way built and booted OK to, so that "git bisect" works
> through this series.

When I first wrote the series I made sure it booted at each patch, but
I didn't reconfirm with all the changes, so it's quite possible I
broke that.  I'll make sure I preserve that.

> > -COBJS	:= $(COBJS-y)
> > -SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
> > -OBJS	:= $(addprefix $(obj),$(COBJS) $(SOBJS))
> > +SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
> > +OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
> 
> At least in this patch, I don't think SOBJS is set. Does using it here
> cause build issues?

I'll confirm.

> > diff --git a/spl/Makefile b/spl/Makefile
> 
> > +ifneq ($(CONFIG_TEGRA2),)
> > +LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
> > +endif
> 
> In another file in this patch, that first line was the non-inverted test:
> 
> +ifeq ($(SOC),tegra20)
> 
> That seems simpler. Can we use the same here?

Sure.

-Allen
-- 
nvpublic