ARCv2: clocksource: Introduce 64bit local RTC 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/Kconfig b/arch/arc/Kconfig
index 974ed90..f09e03a 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -372,6 +372,11 @@
 	  dest operands with 2 possible source operands.
 	default y
 
+config ARC_HAS_RTC
+	bool "Local 64-bit r/o cycle counter"
+	default n
+	depends on !SMP
+
 config ARC_NUMBER_OF_INTERRUPTS
 	int "Number of interrupts"
 	range 8 240