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Diffstat (limited to 'arch/arm/kernel/time.c')
-rw-r--r--arch/arm/kernel/time.c81
1 files changed, 19 insertions, 62 deletions
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 09be0c3c906..829a96d4a17 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -11,30 +11,26 @@
* This file contains the ARM-specific time handling details:
* reading the RTC at bootup, etc...
*/
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/errno.h>
#include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/profile.h>
#include <linux/sched.h>
+#include <linux/sched_clock.h>
#include <linux/smp.h>
+#include <linux/time.h>
#include <linux/timex.h>
-#include <linux/errno.h>
-#include <linux/profile.h>
-#include <linux/syscore_ops.h>
#include <linux/timer.h>
-#include <linux/irq.h>
-#include <asm/thread_info.h>
-#include <asm/sched_clock.h>
-#include <asm/stacktrace.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
-
-/*
- * Our system timer.
- */
-static struct sys_timer *system_timer;
+#include <asm/stacktrace.h>
+#include <asm/thread_info.h>
#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || \
defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE)
@@ -69,16 +65,6 @@ unsigned long profile_pc(struct pt_regs *regs)
EXPORT_SYMBOL(profile_pc);
#endif
-#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
-u32 arch_gettimeoffset(void)
-{
- if (system_timer->offset != NULL)
- return system_timer->offset() * 1000;
-
- return 0;
-}
-#endif /* CONFIG_ARCH_USES_GETTIMEOFFSET */
-
#ifndef CONFIG_GENERIC_CLOCKEVENTS
/*
* Kernel system timer support.
@@ -129,43 +115,14 @@ int __init register_persistent_clock(clock_access_fn read_boot,
return -EINVAL;
}
-#if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS)
-static int timer_suspend(void)
-{
- if (system_timer->suspend)
- system_timer->suspend();
-
- return 0;
-}
-
-static void timer_resume(void)
-{
- if (system_timer->resume)
- system_timer->resume();
-}
-#else
-#define timer_suspend NULL
-#define timer_resume NULL
-#endif
-
-static struct syscore_ops timer_syscore_ops = {
- .suspend = timer_suspend,
- .resume = timer_resume,
-};
-
-static int __init timer_init_syscore_ops(void)
-{
- register_syscore_ops(&timer_syscore_ops);
-
- return 0;
-}
-
-device_initcall(timer_init_syscore_ops);
-
void __init time_init(void)
{
- system_timer = machine_desc->timer;
- system_timer->init();
- sched_clock_postinit();
+ if (machine_desc->init_time) {
+ machine_desc->init_time();
+ } else {
+#ifdef CONFIG_COMMON_CLK
+ of_clk_init(NULL);
+#endif
+ clocksource_of_init();
+ }
}
-