Commit 4ce17552 authored by Russell King's avatar Russell King
Browse files

ARM: Realview/Versatile: don't use magic numbers for timer frequency 



Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent fe8e1a57

arch/arm/plat-versatile/timer-sp.c

+5 −7
Original line number Diff line number Diff line
@@ -26,15 +26,13 @@ 


#include <asm/hardware/arm_timer.h>



#include <mach/platform.h>



#include <plat/timer-sp.h>



/*

 * How long is the timer interval?

 * These timers are currently always setup to be clocked at 1MHz.

 */

#define TIMER_RELOAD	(TICKS_PER_uSEC * mSEC_10)



#define TIMER_FREQ_KHZ	(1000)

#define TIMER_RELOAD	(TIMER_FREQ_KHZ * 1000 / HZ)



static void __iomem *clksrc_base;
@@ -65,7 +63,7 @@ void __init sp804_clocksource_init(void __iomem *base) 
	writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC,

		clksrc_base + TIMER_CTRL);



	cs->mult = clocksource_khz2mult(1000, cs->shift);

	cs->mult = clocksource_khz2mult(TIMER_FREQ_KHZ, cs->shift);

	clocksource_register(cs);

}
@@ -149,7 +147,7 @@ void __init sp804_clockevents_init(void __iomem *base, unsigned int timer_irq) 
	clkevt_base = base;



	evt->irq = timer_irq;

	evt->mult = div_sc(1000000, NSEC_PER_SEC, evt->shift);

	evt->mult = div_sc(TIMER_FREQ_KHZ, NSEC_PER_MSEC, evt->shift);

	evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt);

	evt->min_delta_ns = clockevent_delta2ns(0xf, evt);