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-rw-r--r--arch/ppc/Makefile4
-rw-r--r--arch/ppc64/Makefile3
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 121d2347b89..94d5716fa7c 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -26,6 +26,10 @@ CPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
AFLAGS += -Iarch/$(ARCH)
CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \
-ffixed-r2 -mmultiple
+
+# No AltiVec instruction when building kernel
+CFLAGS += $(call cc-option, -mno-altivec)
+
CPP = $(CC) -E $(CFLAGS)
# Temporary hack until we have migrated to asm-powerpc
LINUXINCLUDE += -Iarch/$(ARCH)/include
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index 743f0dbdebf..db1b25cdb5b 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -75,6 +75,9 @@ else
CFLAGS += $(call cc-option,-mtune=power4)
endif
+# No AltiVec instruction when building kernel
+CFLAGS += $(call cc-option, -mno-altivec)
+
# Enable unit-at-a-time mode when possible. It shrinks the
# kernel considerably.
CFLAGS += $(call cc-option,-funit-at-a-time)