C++ (Cpp) realview_clocksource_init Examples

Example #1

File: core.c Project: Combitech/simcom-linux-kernel

/*
 * Set up the clock source and clock events devices
 */
void __init realview_timer_init(unsigned int timer_irq)
{
	u32 val;

	/* 
	 * set clock frequency: 
	 *	REALVIEW_REFCLK is 32KHz
	 *	REALVIEW_TIMCLK is 1MHz
	 */
	val = readl(__io_address(REALVIEW_SCTL_BASE));
	writel((REALVIEW_TIMCLK << REALVIEW_TIMER1_EnSel) |
	       (REALVIEW_TIMCLK << REALVIEW_TIMER2_EnSel) | 
	       (REALVIEW_TIMCLK << REALVIEW_TIMER3_EnSel) |
	       (REALVIEW_TIMCLK << REALVIEW_TIMER4_EnSel) | val,
	       __io_address(REALVIEW_SCTL_BASE));

	/*
	 * Initialise to a known state (all timers off)
	 */
	writel(0, timer0_va_base + TIMER_CTRL);
	writel(0, timer1_va_base + TIMER_CTRL);
	writel(0, timer2_va_base + TIMER_CTRL);
	writel(0, timer3_va_base + TIMER_CTRL);

	/* 
	 * Make irqs happen for the system timer
	 */
	setup_irq(timer_irq, &realview_timer_irq);

	realview_clocksource_init();
	realview_clockevents_init(timer_irq);
}

Example #2

File: core.c Project: KangXperiaProject/semc-kernel-msm7x27-jb

/*
 * Set up the clock source and clock events devices
 */
void __init realview_timer_init(unsigned int timer_irq)
{
	u32 val;

#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
	/*
	 * The dummy clock device has to be registered before the main device
	 * so that the latter will broadcast the clock events
	 */
	local_timer_setup();
#endif

	/* 
	 * set clock frequency: 
	 *	REALVIEW_REFCLK is 32KHz
	 *	REALVIEW_TIMCLK is 1MHz
	 */
	val = readl(__io_address(REALVIEW_SCTL_BASE));
	writel((REALVIEW_TIMCLK << REALVIEW_TIMER1_EnSel) |
	       (REALVIEW_TIMCLK << REALVIEW_TIMER2_EnSel) | 
	       (REALVIEW_TIMCLK << REALVIEW_TIMER3_EnSel) |
	       (REALVIEW_TIMCLK << REALVIEW_TIMER4_EnSel) | val,
	       __io_address(REALVIEW_SCTL_BASE));

	/*
	 * Initialise to a known state (all timers off)
	 */
	writel(0, timer0_va_base + TIMER_CTRL);
	writel(0, timer1_va_base + TIMER_CTRL);
	writel(0, timer2_va_base + TIMER_CTRL);
	writel(0, timer3_va_base + TIMER_CTRL);

	/* 
	 * Make irqs happen for the system timer
	 */
	setup_irq(timer_irq, &realview_timer_irq);

	realview_clocksource_init();
	realview_clockevents_init(timer_irq);
}