Loading...
/*
* linux/include/asm-arm/arch-shark/time.h
*
* by Alexander Schulz
*
* derived from include/asm-arm/arch-ebsa110/time.h
* Copyright (c) 1996,1997,1998 Russell King.
*/
#include <asm/leds.h>
#include <asm/param.h>
#define IRQ_TIMER 0
#define HZ_TIME ((1193180 + HZ/2) / HZ)
static irqreturn_t
timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
do_leds();
do_timer(regs);
do_profile(regs);
return IRQ_HANDLED;
}
/*
* Set up timer interrupt, and return the current time in seconds.
*/
void __init time_init(void)
{
unsigned long flags;
outb(0x34, 0x43); /* binary, mode 0, LSB/MSB, Ch 0 */
outb(HZ_TIME & 0xff, 0x40); /* LSB of count */
outb(HZ_TIME >> 8, 0x40);
timer_irq.handler = timer_interrupt;
setup_irq(IRQ_TIMER, &timer_irq);
}
|