Specifying -mspe=no also disables usage of SPE instructions. It is documented in "[PATCH,rs6000] make -mno-spe work as expected" email: http://gcc.gnu.org/ml/gcc-patches/2008-04/msg00311.html
So replace -mspe=yes by -mspe=no, so make it clear that u-boot has to be compiled without SPE instructions.
Linux kernel contains following Makefile code to achieve it:
# No SPE instruction when building kernel # (We use all available options to help semi-broken compilers) KBUILD_CFLAGS += $(call cc-option,-mno-spe) KBUILD_CFLAGS += $(call cc-option,-mspe=no)
Do same for U-Boot.
Signed-off-by: Pali Rohár pali@kernel.org --- arch/powerpc/cpu/mpc85xx/config.mk | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/cpu/mpc85xx/config.mk b/arch/powerpc/cpu/mpc85xx/config.mk index b6b5d2053aea..482bb90cb120 100644 --- a/arch/powerpc/cpu/mpc85xx/config.mk +++ b/arch/powerpc/cpu/mpc85xx/config.mk @@ -6,11 +6,12 @@ PLATFORM_CPPFLAGS += -msoft-float -mno-string PLATFORM_RELFLAGS += -msingle-pic-base -fno-jump-tables
-# -mspe=yes is needed to have -mno-spe accepted by a buggy GCC; +# No SPE instruction when building u-boot +# (We use all available options to help semi-broken compilers) # see "[PATCH,rs6000] make -mno-spe work as expected" on # http://gcc.gnu.org/ml/gcc-patches/2008-04/msg00311.html -PLATFORM_CPPFLAGS += $(call cc-option,-mspe=yes) \ - $(call cc-option,-mno-spe) +PLATFORM_CPPFLAGS += $(call cc-option,-mno-spe) \ + $(call cc-option,-mspe=no)
ifdef CONFIG_E6500 PLATFORM_CPPFLAGS += -mcpu=e6500