ARM: shmobile: always build rcar setup for armv7

In a combined ARMv6/v7 kernel, the setup-rcar-gen2.c cannot
currently be compiled correctly because it uses the isb
instruction that is not available on ARMv6. Adding the
-march=armv7-a flag lets the compiler know that it is safe
to build this file for ARMv7.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit e3d163329753b3b473f40c9be71561ed8eb98aea)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 7d68eba..b55cac0 100644 (file)
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -35,6 +35,7 @@ cpu-y                         := platsmp.o headsmp.o
 
 # Shared SoC family objects
 obj-$(CONFIG_ARCH_RCAR_GEN2)   += setup-rcar-gen2.o platsmp-apmu.o $(cpu-y)
+CFLAGS_setup-rcar-gen2.o       += -march=armv7-a
 
 # SMP objects
 smp-y                          := $(cpu-y)