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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-12-15 21:56:47 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-12-22 22:44:50 +0000
commit1da0c89c66753860ccfe81eb327c25db46c2a24a (patch)
tree565710dc2a57dca18a17d3e34465485f32191b81 /arch/arm/mach-realview
parentf06a1624621527ef597ae4b3b795553fc1b2eff2 (diff)
ARM: versatile: convert sched_clock() to use new infrastructure
Convert versatile platforms to use the new sched_clock() infrastructure for extending 32bit counters to full 64-bit nanoseconds. Tested-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-realview')
-rw-r--r--arch/arm/mach-realview/core.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 07c08151dfe..3d653e05b75 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -52,6 +52,8 @@
#include <mach/irqs.h>
#include <plat/timer-sp.h>
+#include <plat/sched_clock.h>
+
#include "core.h"
/* used by entry-macro.S and platsmp.c */
@@ -658,6 +660,12 @@ void realview_leds_event(led_event_t ledevt)
#endif /* CONFIG_LEDS */
/*
+ * The sched_clock counter
+ */
+#define REFCOUNTER (__io_address(REALVIEW_SYS_BASE) + \
+ REALVIEW_SYS_24MHz_OFFSET)
+
+/*
* Where is the timer (VA)?
*/
void __iomem *timer0_va_base;
@@ -672,6 +680,8 @@ void __init realview_timer_init(unsigned int timer_irq)
{
u32 val;
+ versatile_sched_clock_init(REFCOUNTER, 24000000);
+
/*
* set clock frequency:
* REALVIEW_REFCLK is 32KHz