On 05/23/2012 09:01 AM, Thierry Reding wrote: > * Aneesh V wrote: >> Enable -march=armv7-a for armv7 platforms if the tool-chain >> supports it. This in turn results in Thumb-2 code generated for >> these platforms if CONFIG_SYS_THUMB_BUILD is enabled. >> >> Signed-off-by: Aneesh V <ane...@ti.com> --- I believe armv7-a is >> fine for all the SoCs except Tegra2 and I see that Tegra2 is >> already making the necessary exception in >> .../armv7/tegra2/config.mk >> >> Let me know if any other SoC has a problem with armv7-a > > I haven't been able to boot any Tegra2 boards with this patch > applied. I'm guessing that some exceptions for Tegra2 code are > still missing, though they shouldn't work with armv5 either since > the AVP is armv4 only. For now I've conditionalized the > -march=armv7-a on !CONFIG_TEGRA2.
I have the following patch locally, courtesy of Allen Martin. Allen, are you going to (or did you) post the final version here? > diff --git a/arch/arm/cpu/armv7/tegra2/config.mk > b/arch/arm/cpu/armv7/tegra2/config.mk index fe9ef5b..f3ba6f5 > 100644 --- a/arch/arm/cpu/armv7/tegra2/config.mk +++ > b/arch/arm/cpu/armv7/tegra2/config.mk @@ -24,10 +24,12 @@ # MA > 02111-1307 USA # > > -# Tegra has an ARMv4T CPU which runs board_init_f(), so we must > build this -# file with compatible flags +# Tegra has an ARMv4T CPU > which runs board_init_f(), so we must build these +# files with > compatible flags ifdef CONFIG_TEGRA2 CFLAGS_arch/arm/lib/board.o += > -march=armv4t +CFLAGS_common/cmd_nvedit.o += -march=armv4t > +CFLAGS_lib/string.o += -march=armv4t endif > > USE_PRIVATE_LIBGCC = yes _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
