diff options
Diffstat (limited to 'arch/arm/kernel/time.c')
| -rw-r--r-- | arch/arm/kernel/time.c | 98 |
1 files changed, 19 insertions, 79 deletions
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index af2afb01967..829a96d4a17 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -11,31 +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/leds.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) @@ -70,31 +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 */ - -#ifdef CONFIG_LEDS_TIMER -static inline void do_leds(void) -{ - static unsigned int count = HZ/2; - - if (--count == 0) { - count = HZ/2; - leds_event(led_timer); - } -} -#else -#define do_leds() -#endif - - #ifndef CONFIG_GENERIC_CLOCKEVENTS /* * Kernel system timer support. @@ -102,7 +72,6 @@ static inline void do_leds(void) void timer_tick(void) { profile_tick(CPU_PROFILING); - do_leds(); xtime_update(1); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); @@ -146,43 +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(); + } } - |
