diff options
| author | Pali Rohár | 2022-12-19 22:46:22 +0100 |
|---|---|---|
| committer | Tom Rini | 2022-12-22 15:39:13 -0500 |
| commit | 1db706edcd72724a6f18228d42b26e6b8e9e51ba (patch) | |
| tree | 73fe97873ec5bc0c3de997a9dfe54154ce6ba5ee /arch/powerpc | |
| parent | 138b6061a100f149e9249d09ef3e6db2437ff147 (diff) | |
powerpc/mpc85xx: Disable AltiVec and VSX instructions
All vector instructions on powerpc mpc85xx must not be used because U-Boot
does not enable them. Usage cause random crashes. SPE vector instructions
are already disabled by compiler flags, so disable also AltiVec and VSX
vector instructions.
Linux kernel disables AltiVec and VSX instructions too.
Signed-off-by: Pali Rohár <pali@kernel.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/config.mk | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/config.mk b/arch/powerpc/cpu/mpc85xx/config.mk index 482bb90cb12..71a98f05c90 100644 --- a/arch/powerpc/cpu/mpc85xx/config.mk +++ b/arch/powerpc/cpu/mpc85xx/config.mk @@ -13,6 +13,10 @@ PLATFORM_RELFLAGS += -msingle-pic-base -fno-jump-tables PLATFORM_CPPFLAGS += $(call cc-option,-mno-spe) \ $(call cc-option,-mspe=no) +# No AltiVec or VSX instructions when building u-boot +PLATFORM_CPPFLAGS += $(call cc-option,-mno-altivec) +PLATFORM_CPPFLAGS += $(call cc-option,-mno-vsx) + ifdef CONFIG_E6500 PLATFORM_CPPFLAGS += -mcpu=e6500 else ifdef CONFIG_E5500 |