ARM: uniphier: add PH1-LD20 SoC support

This is the first ARMv8 SoC from Socionext Inc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/board_common.c b/arch/arm/mach-uniphier/board_common.c
index 020ffca..330d690 100644
--- a/arch/arm/mach-uniphier/board_common.c
+++ b/arch/arm/mach-uniphier/board_common.c
@@ -8,9 +8,13 @@
 
 #include "micro-support-card.h"
 
+void uniphier_smp_kick_all_cpus(void);
+
 int board_init(void)
 {
 	led_puts("Uboo");
-
+#ifdef CONFIG_ARM64
+	uniphier_smp_kick_all_cpus();
+#endif
 	return 0;
 }