C++ (Cpp) platform_calibrate_ccount Examples

Example #1

File: time.c Project: 3sOx/asuswrt-merlin

void __init time_init(void)
{
	time_t sec_o, sec_n = 0;

	/* The platform must provide a function to calibrate the processor
	 * speed for the CALIBRATE.
	 */

#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
	printk("Calibrating CPU frequency ");
	platform_calibrate_ccount();
	printk("%d.%02d MHz\n", (int)ccount_per_jiffy/(1000000/HZ),
			(int)(ccount_per_jiffy/(10000/HZ))%100);
#endif

	/* Set time from RTC (if provided) */

	if (platform_get_rtc_time(&sec_o) == 0)
		while (platform_get_rtc_time(&sec_n))
			if (sec_o != sec_n)
				break;

	xtime.tv_nsec = 0;
	last_rtc_update = xtime.tv_sec = sec_n;
	last_ccount_stamp = get_ccount();

	set_normalized_timespec(&wall_to_monotonic,
		-xtime.tv_sec, -xtime.tv_nsec);

	/* Initialize the linux timer interrupt. */

	setup_irq(LINUX_TIMER_INT, &timer_irqaction);
	set_linux_timer(get_ccount() + CCOUNT_PER_JIFFY);
}

Example #2

void __init time_init(void)
{
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
	printk("Calibrating CPU frequency ");
	platform_calibrate_ccount();
	printk("%d.%02d MHz\n", (int)ccount_per_jiffy/(1000000/HZ),
			(int)(ccount_per_jiffy/(10000/HZ))%100);
#endif
<<<<<<< HEAD

Example #3

File: time.c Project: IharpI/bricked-sanity-hammerhead

void __init time_init(void)
{
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
	printk("Calibrating CPU frequency ");
	platform_calibrate_ccount();
	printk("%d.%02d MHz\n", (int)ccount_per_jiffy/(1000000/HZ),
			(int)(ccount_per_jiffy/(10000/HZ))%100);
#endif
	clocksource_register_hz(&ccount_clocksource, CCOUNT_PER_JIFFY * HZ);

	/* Initialize the linux timer interrupt. */

	setup_irq(LINUX_TIMER_INT, &timer_irqaction);
	set_linux_timer(get_ccount() + CCOUNT_PER_JIFFY);
}

Example #4

File: time.c Project: 0x000000FF/edison-linux

void __init time_init(void)
{
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
	printk("Calibrating CPU frequency ");
	platform_calibrate_ccount();
	printk("%d.%02d MHz\n", (int)ccount_freq/1000000,
			(int)(ccount_freq/10000)%100);
#else
	ccount_freq = CONFIG_XTENSA_CPU_CLOCK*1000000UL;
#endif
	clocksource_register_hz(&ccount_clocksource, ccount_freq);
	local_timer_setup(0);
	setup_irq(this_cpu_ptr(&ccount_timer)->evt.irq, &timer_irqaction);
	sched_clock_register(ccount_sched_clock_read, 32, ccount_freq);
	clocksource_of_init();
}

Example #5

File: time.c Project: 325116067/semc-qsd8x50

void __init time_init(void)
{
	/* FIXME: xtime&wall_to_monotonic are set in timekeeping_init. */
	read_persistent_clock(&xtime);
	set_normalized_timespec(&wall_to_monotonic,
		-xtime.tv_sec, -xtime.tv_nsec);

#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
	printk("Calibrating CPU frequency ");
	platform_calibrate_ccount();
	printk("%d.%02d MHz\n", (int)ccount_per_jiffy/(1000000/HZ),
			(int)(ccount_per_jiffy/(10000/HZ))%100);
#endif
	ccount_clocksource.mult =
		clocksource_hz2mult(CCOUNT_PER_JIFFY * HZ,
				ccount_clocksource.shift);
	clocksource_register(&ccount_clocksource);

	/* Initialize the linux timer interrupt. */

	setup_irq(LINUX_TIMER_INT, &timer_irqaction);
	set_linux_timer(get_ccount() + CCOUNT_PER_JIFFY);
}