ARCv2: SMP: clocksource: Enable Global Real Time counter

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/include/asm/mcip.h b/arch/arc/include/asm/mcip.h
index 31f9bac..52c11f0 100644
--- a/arch/arc/include/asm/mcip.h
+++ b/arch/arc/include/asm/mcip.h
@@ -39,6 +39,9 @@
 #define CMD_DEBUG_SET_MASK		0x34
 #define CMD_DEBUG_SET_SELECT		0x36
 
+#define CMD_GRTC_READ_LO		0x42
+#define CMD_GRTC_READ_HI		0x43
+
 #define CMD_IDU_ENABLE			0x71
 #define CMD_IDU_DISABLE			0x72
 #define CMD_IDU_SET_MODE		0x74