ARM: zynq: move arm-specific sys_timer out of ttc

Move the sys_timer definition out of ttc driver and make it part of the
common zynq code.  This is preparation for renaming and COMMON_CLK
support.
Signed-off-by: Josh Cartwright <josh.cartwright@ni.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/mach-zynq/common.c

@@ -25,6 +25,7 @@
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
+#include <asm/mach/time.h>
 #include <asm/mach-types.h>
 #include <asm/page.h>
 #include <asm/hardware/gic.h>
@@ -93,6 +94,18 @@ static struct map_desc io_desc[] __initdata = {
 
 };
 
+static void __init xilinx_zynq_timer_init(void)
+{
+	xttcpss_timer_init();
+}
+
+/*
+ * Instantiate and initialize the system timer structure
+ */
+static struct sys_timer xttcpss_sys_timer = {
+	.init		= xilinx_zynq_timer_init,
+};
+
 /**
  * xilinx_map_io() - Create memory mappings needed for early I/O.
  */

arch/arm/mach-zynq/common.h

@@ -17,8 +17,6 @@
 #ifndef __MACH_ZYNQ_COMMON_H__
 #define __MACH_ZYNQ_COMMON_H__
 
-#include <asm/mach/time.h>
-
-extern struct sys_timer xttcpss_sys_timer;
+void __init xttcpss_timer_init(void);
 
 #endif

arch/arm/mach-zynq/timer.c

@@ -24,7 +24,6 @@
 #include <linux/clockchips.h>
 #include <linux/io.h>
 
-#include <asm/mach/time.h>
 #include <mach/zynq_soc.h>
 #include "common.h"
 
@@ -269,7 +268,7 @@ static struct clock_event_device xttcpss_clockevent = {
  * Initializes the timer hardware and register the clock source and clock event
  * timers with Linux kernal timer framework
  **/
-static void __init xttcpss_timer_init(void)
+void __init xttcpss_timer_init(void)
 {
 	xttcpss_timer_hardware_init();
 	clocksource_register_hz(&clocksource_xttcpss, TIMER_RATE);
@@ -289,10 +288,3 @@ static void __init xttcpss_timer_init(void)
 	xttcpss_clockevent.cpumask = cpumask_of(0);
 	clockevents_register_device(&xttcpss_clockevent);
 }
-
-/*
- * Instantiate and initialize the system timer structure
- */
-struct sys_timer xttcpss_sys_timer = {
-	.init		= xttcpss_timer_init,
-};