[U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

[Peng Fan]

Pass -mgeneral-regs-only to GCC, if not compiler may generate
instructions that use SIMD registers.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
Cc: Albert Aribaud <albert.u.boot at aribaud.net>
Cc: Tom Rini <trini at konsulko.com>
---
 arch/arm/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 3e93fd6..e44e45c 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -18,7 +18,7 @@ arch-$(CONFIG_CPU_ARM1136)	=-march=armv5
 arch-$(CONFIG_CPU_ARM1176)	=-march=armv5t
 arch-$(CONFIG_CPU_V7)		=$(call cc-option, -march=armv7-a, \
 				 $(call cc-option, -march=armv7, -march=armv5))
-arch-$(CONFIG_ARM64)		=-march=armv8-a
+arch-$(CONFIG_ARM64)           =-march=armv8-a -mgeneral-regs-only
 
 # On Tegra systems we must build SPL for the armv4 core on the device
 # but otherwise we can use the value in CONFIG_SYS_ARM_ARCH
-- 
2.6.2