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| author | amartin@nvidia.com <amartin@nvidia.com> | 2012-05-14 13:14:39 (GMT) |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-07-07 12:07:19 (GMT) |
| commit | f3717ac5848ec389919596d5e518b528fb8bebdd (patch) | |
| tree | fbdd225ba837191edee560934a5f16acbb653699 /arch/arm/cpu | |
| parent | 27c4a3318f716cce0a23248317534bda7792230b (diff) | |
| download | u-boot-f3717ac5848ec389919596d5e518b528fb8bebdd.tar.xz | |
tegra: override compiler flags for low level init code
Override -march setting for tegra to -march=armv4t for files that are
necessary for low level init on tegra.
The recent change to use -march=armv7-a for armv7 caused a regression
on tegra because tegra starts boot on a arm7tdmi processor before
transferring control to the cortex-a9. While still executing on the
arm7tdmi there are calls to getenv_ulong() and memset() that cause an
illegal instruction exception if compiled for armv7.
Signed-off-by: Allen Martin <amartin@nvidia.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/config.mk | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/tegra2/config.mk b/arch/arm/cpu/armv7/tegra2/config.mk index fe9ef5b..4dd8cb8 100644 --- a/arch/arm/cpu/armv7/tegra2/config.mk +++ b/arch/arm/cpu/armv7/tegra2/config.mk @@ -24,10 +24,13 @@ # 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_arch/arm/lib/memset.o += -march=armv4t +CFLAGS_lib/string.o += -march=armv4t +CFLAGS_common/cmd_nvedit.o += -march=armv4t endif USE_PRIVATE_LIBGCC = yes |