Query about vexpress_ct_ca9x4 watchdog issue ?
bill_carson at 126.com
Tue Apr 19 22:07:52 EDT 2011
Hi viresh and arm guys:)
I am testing sp805 watchdog at vexpress board.
After open /dev/watchdog , I use WDIOC_GETTIMELEFT ioctl to get the time left for rebooting in a loop;
while the timeleft is not decrementing, but stay as a constant 59s.
I read the WdogValue/WdogControl register as specified in SP805TRM, it does not change any way,
WdogValue --> 0xf0918000
It seems the value is correct, but watchdog is not triggered.
I am really puzzled about this, can you give me some clue to find the root cause?
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