Override -march setting for tegra to -march=armv4t for cmd_nvedit.c
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 is a call to getenv_ulong() that causes an illegal instruction exception if cmd_nvedit is compiled for armv7.
Signed-off-by: Allen Martin amartin@nvidia.com --- arch/arm/cpu/armv7/tegra2/config.mk | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/armv7/tegra2/config.mk b/arch/arm/cpu/armv7/tegra2/config.mk index fe9ef5b..3f068dc 100644 --- a/arch/arm/cpu/armv7/tegra2/config.mk +++ b/arch/arm/cpu/armv7/tegra2/config.mk @@ -24,10 +24,11 @@ # 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 endif
USE_PRIVATE_LIBGCC = yes