diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c
index 7713813a68..0f8ead980c 100644
--- a/arch/arm/mach-sunxi/board.c
+++ b/arch/arm/mach-sunxi/board.c
@@ -182,7 +182,8 @@ void s_init(void)
 
 #if defined CONFIG_MACH_SUN6I || \
     defined CONFIG_MACH_SUN7I || \
-    defined CONFIG_MACH_SUN8I
+    defined CONFIG_MACH_SUN8I || \
+    defined CONFIG_MACH_SUN9I
 	/* Enable SMP mode for CPU0, by setting bit 6 of Auxiliary Ctl reg */
 	asm volatile(
 		"mrc p15, 0, r0, c1, c0, 1\n"