aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-ixp4xx
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@arm.linux.org.uk>2011-01-05 13:09:03 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-01-05 13:09:03 -0500
commit58daf18cdcab550262a5f4681e1f1e073e21965a (patch)
tree2096324b947761a567dd451f33664f17ee1de2cd /arch/arm/mach-ixp4xx
parentaa312be1987d43216e72ffce42bccf6bf81f62ed (diff)
parent0af85dda39d9b673aca8c0ebae004ea70f3efc93 (diff)
Merge branch 'clksrc' into devel
Conflicts: arch/arm/mach-vexpress/v2m.c arch/arm/plat-omap/counter_32k.c arch/arm/plat-versatile/Makefile
Diffstat (limited to 'arch/arm/mach-ixp4xx')
-rw-r--r--arch/arm/mach-ixp4xx/common.c35
1 files changed, 20 insertions, 15 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 0bce09799d18..4dbfcbb9163c 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -35,6 +35,7 @@
35#include <asm/pgtable.h> 35#include <asm/pgtable.h>
36#include <asm/page.h> 36#include <asm/page.h>
37#include <asm/irq.h> 37#include <asm/irq.h>
38#include <asm/sched_clock.h>
38 39
39#include <asm/mach/map.h> 40#include <asm/mach/map.h>
40#include <asm/mach/irq.h> 41#include <asm/mach/irq.h>
@@ -399,6 +400,23 @@ void __init ixp4xx_sys_init(void)
399} 400}
400 401
401/* 402/*
403 * sched_clock()
404 */
405static DEFINE_CLOCK_DATA(cd);
406
407unsigned long long notrace sched_clock(void)
408{
409 u32 cyc = *IXP4XX_OSTS;
410 return cyc_to_sched_clock(&cd, cyc, (u32)~0);
411}
412
413static void notrace ixp4xx_update_sched_clock(void)
414{
415 u32 cyc = *IXP4XX_OSTS;
416 update_sched_clock(&cd, cyc, (u32)~0);
417}
418
419/*
402 * clocksource 420 * clocksource
403 */ 421 */
404static cycle_t ixp4xx_get_cycles(struct clocksource *cs) 422static cycle_t ixp4xx_get_cycles(struct clocksource *cs)
@@ -411,7 +429,6 @@ static struct clocksource clocksource_ixp4xx = {
411 .rating = 200, 429 .rating = 200,
412 .read = ixp4xx_get_cycles, 430 .read = ixp4xx_get_cycles,
413 .mask = CLOCKSOURCE_MASK(32), 431 .mask = CLOCKSOURCE_MASK(32),
414 .shift = 20,
415 .flags = CLOCK_SOURCE_IS_CONTINUOUS, 432 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
416}; 433};
417 434
@@ -419,21 +436,9 @@ unsigned long ixp4xx_timer_freq = FREQ;
419EXPORT_SYMBOL(ixp4xx_timer_freq); 436EXPORT_SYMBOL(ixp4xx_timer_freq);
420static void __init ixp4xx_clocksource_init(void) 437static void __init ixp4xx_clocksource_init(void)
421{ 438{
422 clocksource_ixp4xx.mult = 439 init_sched_clock(&cd, ixp4xx_update_sched_clock, 32, ixp4xx_timer_freq);
423 clocksource_hz2mult(ixp4xx_timer_freq,
424 clocksource_ixp4xx.shift);
425 clocksource_register(&clocksource_ixp4xx);
426}
427
428/*
429 * sched_clock()
430 */
431unsigned long long sched_clock(void)
432{
433 cycle_t cyc = ixp4xx_get_cycles(NULL);
434 struct clocksource *cs = &clocksource_ixp4xx;
435 440
436 return clocksource_cyc2ns(cyc, cs->mult, cs->shift); 441 clocksource_register_hz(&clocksource_ixp4xx, ixp4xx_timer_freq);
437} 442}
438 443
439/* 444/*