ohne einschalten:

root@simpad:~$ cat /proc/interrupts 
           CPU0
  0:          0      GPIO-l  power button
  1:        202      GPIO-l  ide0
 17:        453          SC  sa11x0-uart
 26:       8592          SC  SA11xx Timer Tick
 43:          0      GPIO-h  UCB1x00
 45:          0      GPIO-h  CF_CD
Err:          0
root@simpad:~$ 

root@simpad:~$ cat /dev/rtc & sleep 3 && cat /proc/interrupts > /tmp/interrupts && killall cat && cat /tmp/interrupts
IN SA1100_RTC_OPEN:
pointer to sa1100_rtc_interrupt befor IRQ_RTC1Hz: C01DBCAC 
pointer to sa1100_rtc_interrupt befor IRQ_RTCAlrm: C01DBCAC 
pointer to timer1_interrupt befor IRQ_OST1: C01DBDD4 
           CPU0
  0:          0      GPIO-l  power button
  1:        203      GPIO-l  ide0
 17:        609          SC  sa11x0-uart
 26:      14401          SC  SA11xx Timer Tick
 27:          0          SC  rtc timer
 30:          0          SC  rtc 1Hz
 31:          0          SC  rtc Alrm
 43:          6      GPIO-h  UCB1x00
 45:          0      GPIO-h  CF_CD
Err:          0
[1] + Terminated                 cat /dev/rtc
root@simpad:~$ 

mit einschalten:

root@simpad:~$ cat /proc/interrupts 
           CPU0
  0:          0      GPIO-l  power button
  1:        202      GPIO-l  ide0
 17:        453          SC  sa11x0-uart
 26:       8592          SC  SA11xx Timer Tick
 43:          0      GPIO-h  UCB1x00
 45:          0      GPIO-h  CF_CD
Err:          0
root@simpad:~$ 

root@simpad:~$ cat /dev/rtc & sleep 3 && cat /proc/interrupts > /tmp/interrupts && killall cat && cat /tmp/interrupts
IN SA1100_RTC_OPEN:
RTSR before hex: 0RTSR after hex: Cpointer to sa1100_rtc_interrupt befor IRQ_RTC1Hz: C01DBCF8
pointer to sa1100_rtc_interrupt befor IRQ_RTCAlrm: C01DBCF8
pointer to timer1_interrupt befor IRQ_OST1: C01DBE24
rtc pointer in sa1100_rtc_interrupt: C3DAD800
..rtc pointer in sa1100_rtc_interrupt: C3DAD800
..rtc pointer in sa1100_rtc_interrupt: C3DAD800
..rtc pointer in sa1100_rtc_interrupt: C3DAD800
..           CPU0
  0:          2      GPIO-l  power button
  1:        205      GPIO-l  ide0
 17:        761          SC  sa11x0-uart
 26:      14942          SC  SA11xx Timer Tick
 27:          0          SC  rtc timer
 30:          7          SC  rtc 1Hz
 31:          0          SC  rtc Alrm
 43:          0      GPIO-h  UCB1x00
 45:          0      GPIO-h  CF_CD
Err:          0
[1] + Terminated                 cat /dev/rtc
root@simpad:~$