[ARM] 3855/1: Add generic time support

This patch adds Generic time-of-day support for the ARM architecture.

The support is currently added using #ifdef's so that it can support
sub-arches that do not (yet) have a clocksource added.  As sub-arches
add clocksource support, they should 'select GENERIC_TIME'

Signed-off-by: Deepak Saxena <dsaxena@mvista.com>
Signed-off-by: Daniel Walker <dwalker@mvista.com>

Signed-off-by: Kevin Hilman <khilman@mvista.com>

Acked-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/mach/time.h b/include/asm-arm/mach/time.h
index dee0bc3..1eb93f5 100644
--- a/include/asm-arm/mach/time.h
+++ b/include/asm-arm/mach/time.h
@@ -38,7 +38,9 @@
 	void			(*init)(void);
 	void			(*suspend)(void);
 	void			(*resume)(void);
+#ifndef CONFIG_GENERIC_TIME
 	unsigned long		(*offset)(void);
+#endif
 
 #ifdef CONFIG_NO_IDLE_HZ
 	struct dyn_tick_timer	*dyn_tick;