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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-12-15 21:49:06 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-12-22 22:44:46 +0000
commit5094b92f1c7d0f21c5d4411ba7415bac0684210f (patch)
treedd7ea2777e5c0470fe7c46c9b8ec3ed16885ddcb /arch/arm/mach-sa1100/generic.c
parent7ce830188199c23aaeaf0c5ccc28b73c32b6df02 (diff)
ARM: sa1100: convert sched_clock() to use new infrastructure
Convert sa1100 to use the new sched_clock() infrastructure for extending 32bit counters to full 64-bit nanoseconds. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-sa1100/generic.c')
-rw-r--r--arch/arm/mach-sa1100/generic.c23
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 33b4969e9d51..fbc224d88e6f 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -16,9 +16,7 @@
#include <linux/pm.h>
#include <linux/cpufreq.h>
#include <linux/ioport.h>
-#include <linux/sched.h> /* just for sched_clock() - funny that */
#include <linux/platform_device.h>
-#include <linux/cnt32_to_63.h>
#include <asm/div64.h>
#include <mach/hardware.h>
@@ -110,27 +108,6 @@ unsigned int sa11x0_getspeed(unsigned int cpu)
}
/*
- * This is the SA11x0 sched_clock implementation. This has
- * a resolution of 271ns, and a maximum value of 32025597s (370 days).
- *
- * The return value is guaranteed to be monotonic in that range as
- * long as there is always less than 582 seconds between successive
- * calls to this function.
- *
- * ( * 1E9 / 3686400 => * 78125 / 288)
- */
-unsigned long long notrace sched_clock(void)
-{
- unsigned long long v = cnt32_to_63(OSCR);
-
- /* the <<1 gets rid of the cnt_32_to_63 top bit saving on a bic insn */
- v *= 78125<<1;
- do_div(v, 288<<1);
-
- return v;
-}
-
-/*
* Default power-off for SA1100
*/
static void sa1100_power_off(void)