diff options
Diffstat (limited to 'arch/cris/arch-v10/kernel')
| -rw-r--r-- | arch/cris/arch-v10/kernel/fasttimer.c | 6 | ||||
| -rw-r--r-- | arch/cris/arch-v10/kernel/head.S | 2 | ||||
| -rw-r--r-- | arch/cris/arch-v10/kernel/time.c | 54 |
3 files changed, 4 insertions, 58 deletions
diff --git a/arch/cris/arch-v10/kernel/fasttimer.c b/arch/cris/arch-v10/kernel/fasttimer.c index 5ff08a8695e9..8a8196ee8ce8 100644 --- a/arch/cris/arch-v10/kernel/fasttimer.c +++ b/arch/cris/arch-v10/kernel/fasttimer.c @@ -467,11 +467,7 @@ timer1_handler(int irq, void *dev_id) static void wake_up_func(unsigned long data) { -#ifdef DECLARE_WAITQUEUE - wait_queue_head_t *sleep_wait_p = (wait_queue_head_t*)data; -#else - struct wait_queue **sleep_wait_p = (struct wait_queue **)data; -#endif + wait_queue_head_t *sleep_wait_p = (wait_queue_head_t *)data; wake_up(sleep_wait_p); } diff --git a/arch/cris/arch-v10/kernel/head.S b/arch/cris/arch-v10/kernel/head.S index fc4577102933..a1f2014b4e3b 100644 --- a/arch/cris/arch-v10/kernel/head.S +++ b/arch/cris/arch-v10/kernel/head.S @@ -280,7 +280,7 @@ _no_romfs_in_flash: ;; the "rom fs" we'll possibly use in 2.4 if not JFFS (which does ;; not need this mechanism anyway) - move.d __vmlinux_end, $r0; the image will be after the vmlinux end address + move.d __init_end, $r0; the image will be after the end of init move.d [$r0], $r1 ; cramfs assumes same endian on host/target cmp.d CRAMFS_MAGIC, $r1; magic value in cramfs superblock bne 2f diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c index 30adae594aef..00eb36f8debf 100644 --- a/arch/cris/arch-v10/kernel/time.c +++ b/arch/cris/arch-v10/kernel/time.c @@ -61,66 +61,16 @@ unsigned long get_ns_in_jiffie(void) unsigned long do_slow_gettimeoffset(void) { - unsigned long count, t1; - unsigned long usec_count = 0; - unsigned short presc_count; - - static unsigned long count_p = TIMER0_DIV;/* for the first call after boot */ - static unsigned long jiffies_p = 0; - - /* - * cache volatile jiffies temporarily; we have IRQs turned off. - */ - unsigned long jiffies_t; + unsigned long count; /* The timer interrupt comes from Etrax timer 0. In order to get * better precision, we check the current value. It might have * underflowed already though. */ - -#ifndef CONFIG_SVINTO_SIM - /* Not available in the xsim simulator. */ count = *R_TIMER0_DATA; - presc_count = *R_TIM_PRESC_STATUS; - /* presc_count might be wrapped */ - t1 = *R_TIMER0_DATA; - if (count != t1){ - /* it wrapped, read prescaler again... */ - presc_count = *R_TIM_PRESC_STATUS; - count = t1; - } -#else - count = 0; - presc_count = 0; -#endif - - jiffies_t = jiffies; - /* - * avoiding timer inconsistencies (they are rare, but they happen)... - * there are one problem that must be avoided here: - * 1. the timer counter underflows - */ - if( jiffies_t == jiffies_p ) { - if( count > count_p ) { - /* Timer wrapped, use new count and prescale - * increase the time corresponding to one jiffie - */ - usec_count = 1000000/HZ; - } - } else - jiffies_p = jiffies_t; - count_p = count; - if (presc_count >= PRESCALE_VALUE/2 ){ - presc_count = PRESCALE_VALUE - presc_count + PRESCALE_VALUE/2; - } else { - presc_count = PRESCALE_VALUE - presc_count - PRESCALE_VALUE/2; - } /* Convert timer value to usec */ - usec_count += ( (TIMER0_DIV - count) * (1000000/HZ)/TIMER0_DIV ) + - (( (presc_count) * (1000000000/PRESCALE_FREQ))/1000); - - return usec_count; + return (TIMER0_DIV - count) * ((NSEC_PER_SEC/1000)/HZ)/TIMER0_DIV; } /* Excerpt from the Etrax100 HSDD about the built-in watchdog: |