[U-Boot] Compiling for ARMv7-a

[Premi, Sanjeev]

Hi,

I am trying to build the u-boot for ARM Cortex-A8 (OMAP3).

By default the code is built for ARMv5. So, I made this
change in cpu/arm_cortexa8/config.mk:

 # Make ARMv5 to allow more compilers to work, even though its v7a.
-PLATFORM_CPPFLAGS += -march=armv5
+PLATFORM_CPPFLAGS += -march=armv7-a

But when I run make, command-line looks like:

arm-none-linux-gnueabi-gcc -g  -Os   -fno-strict-aliasing
-fno-common -ffixed-r8 -msoft-float   -fno-strict-aliasing
-fno-common -ffixed-r8 -msoft-float   -D__KERNEL__
-DTEXT_BASE=0x80e80000 -I/home/premi/u-boot/include
-fno-builtin -ffreestanding -nostdinc
-isystem /opt/codesourcery/lib/gcc/arm-none-linux-
gnueabi/4.3.2/include -pipe  -DCONFIG_ARM -D__ARM__
-march=armv7-a  -mno-thumb-interwork -march=armv5
-mno-thumb-interwork -Wall -Wstrict-prototypes
-fno-stack-protector -c -o date.o date.c

Notice that -march=armv7-a  is followed by -march=armv5.

Which option will take precedence? What is required to
make sure both are same. My attempt at this change was
not successful:

 omap3_evm_config :      unconfig
-       @$(MKCONFIG) $(@:_config=) arm arm_cortexa8 evm omap3 omap3
+       @$(MKCONFIG) $(@:_config=) arm_cortexa8 arm_cortexa8 evm omap3 omap3

Also, many other options are duplicate on the command-line.
May be okay, but is there a way to remove this duplication?

Best regards,
Sanjeev