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-rw-r--r--include/asm-arm/arch-cl7500/time.h97
1 files changed, 8 insertions, 89 deletions
diff --git a/include/asm-arm/arch-cl7500/time.h b/include/asm-arm/arch-cl7500/time.h
index 19b388682..59cb2d6fd 100644
--- a/include/asm-arm/arch-cl7500/time.h
+++ b/include/asm-arm/arch-cl7500/time.h
@@ -1,88 +1,19 @@
/*
* linux/include/asm-arm/arch-cl7500/time.h
*
- * Copyright (c) 1996 Russell King.
- * Copyright (C) 1999 Nexus Electronics Ltd.
+ * Copyright (c) 1996-2000 Russell King.
*
* Changelog:
* 24-Sep-1996 RMK Created
* 10-Oct-1996 RMK Brought up to date with arch-sa110eval
* 04-Dec-1997 RMK Updated for new arch/arm/time.c
- * 10-Aug-1999 PJB Converted for CL7500
*/
-#include <asm/iomd.h>
-
-static long last_rtc_update = 0; /* last time the cmos clock got updated */
-
-extern __inline__ unsigned long gettimeoffset (void)
-{
- unsigned long offset = 0;
- unsigned int count1, count2, status1, status2;
-
- status1 = IOMD_IRQREQA;
- barrier ();
- outb(0, IOMD_T0LATCH);
- barrier ();
- count1 = inb(IOMD_T0CNTL) | (inb(IOMD_T0CNTH) << 8);
- barrier ();
- status2 = inb(IOMD_IRQREQA);
- barrier ();
- outb(0, IOMD_T0LATCH);
- barrier ();
- count2 = inb(IOMD_T0CNTL) | (inb(IOMD_T0CNTH) << 8);
-
- if (count2 < count1) {
- /*
- * This means that we haven't just had an interrupt
- * while reading into status2.
- */
- if (status2 & (1 << 5))
- offset = tick;
- count1 = count2;
- } else if (count2 > count1) {
- /*
- * We have just had another interrupt while reading
- * status2.
- */
- offset += tick;
- count1 = count2;
- }
-
- count1 = LATCH - count1;
- /*
- * count1 = number of clock ticks since last interrupt
- */
- offset += count1 * tick / LATCH;
- return offset;
-}
-
-extern __inline__ unsigned long get_rtc_time(void)
-{
- return mktime(1976, 06, 24, 0, 0, 0);
-}
-
-static int set_rtc_time(unsigned long nowtime)
-{
- return 0;
-}
+extern void ioctime_init(void);
static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
do_timer(regs);
-
- /* If we have an externally synchronized linux clock, then update
- * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
- * called as close as possible to 500 ms before the new second starts.
- */
- if ((time_status & STA_UNSYNC) == 0 &&
- xtime.tv_sec > last_rtc_update + 660 &&
- xtime.tv_usec >= 50000 - (tick >> 1) &&
- xtime.tv_usec < 50000 + (tick >> 1)) {
- if (set_rtc_time(xtime.tv_sec) == 0)
- last_rtc_update = xtime.tv_sec;
- else
- last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
- }
+ do_set_rtc();
{
/* Twinkle the lights. */
@@ -95,29 +26,17 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
}
}
- if (!user_mode(regs))
- do_profile(instruction_pointer(regs));
+ do_profile(regs);
}
-static struct irqaction timerirq = {
- timer_interrupt,
- 0,
- 0,
- "timer",
- NULL,
- NULL
-};
-
/*
- * Set up timer interrupt, and return the current time in seconds.
+ * Set up timer interrupt.
*/
extern __inline__ void setup_timer(void)
{
- outb(LATCH & 255, IOMD_T0LTCHL);
- outb(LATCH >> 8, IOMD_T0LTCHH);
- outb(0, IOMD_T0GO);
+ ioctime_init();
- xtime.tv_sec = get_rtc_time();
+ timer_irq.handler = timer_interrupt;
- setup_arm_irq(IRQ_TIMER, &timerirq);
+ setup_arm_irq(IRQ_TIMER, &timer_irq);
}