[beagleboard] Re: Enable / disable watchdog timer ?
I just tried with latest debian and ti-kernel installed. Powered up with 5V and usb otg connected to pc. Remove 5V: michiel@arm:~$ Broadcast message from root@arm (Sun Mar 1 20:38:52 2015): Power button pressed The system is going down for system halt NOW! clean shutdown and stays off. This is the pmic input driver sending an 'pwr_btn' event which is catched by acpid which does a clean shut down (see /etc/acpid/...) So this seems easy to configure. Only it doesn't react the same as yours. Now I'm going to look what you mean by watchdog (a black one? type beagle:) regards, Michiel -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: Enable / disable watchdog timer ?
Ok, when I powered up with 5V and usb-otg connected to pc and I shortly press the power button I can replicate: clean shutdown and instant reboot Don't know where the reboot is coming from. here's pmic: [ 2.897350] input: tps65217_pwr_but as /devices/ocp.3/44e0b000.i2c/i2c-0/0-0024/input/input0 wrt. watchdog: I assume you mean /dev/watchdog I don't think I have it active. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: Enable / disable watchdog timer ?
power button: Linux arm 3.14.34-ti-r52 #1 SMP PREEMPT Fri Feb 27 16:52:54 UTC 2015 armv7l Hi! Last login: Sun Mar 1 21:17:01 2015 from quad michiel@arm:~$ sudo cat /dev/input/event0 | xxd 000: 1274 f354 ae73 0d00 0100 7400 0100 .t.T.st. 010: 1274 f354 ae73 0d00 .t.T.s.. 020: 1374 f354 1d02 0200 0100 7400 .t.T..t. 030: 1374 f354 1d02 0200 .t.T Broadcast message from root@arm (Sun Mar 1 21:18:27 2015): Power button pressed The system is going down for system halt NOW! ... and system reboots _ 5V remove: Linux arm 3.14.34-ti-r52 #1 SMP PREEMPT Fri Feb 27 16:52:54 UTC 2015 armv7l Hi! Last login: Sun Mar 1 21:18:12 2015 from quad michiel@arm:~$ sudo cat /dev/input/event0 | xxd 000: 5f74 f354 0cae 0100 0100 7400 0100 _t.T..t. 010: 5f74 f354 0cae 0100 _t.T Broadcast message from root@arm (Sun Mar 1 21:19:43 2015): Power button pressed The system is going down for system halt NOW! .. and system stays off -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] Re: Enable / disable watchdog timer ?
Hi Toni;
I think I have it figured out.
I have an image that works and one that doesn’t.
Watchdog Not enabled:
Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l
GNU/Linux
Watchdog enabled:
Linux beaglebone 3.8.13-bone50 #1 SMP Tue May 13 13:24:52 UTC 2014 armv7l
GNU/Linux
Image “bone47” works like yours does. Clean shutdown with no reboot and no
“watchdog enabled” boot message.
It would appear that this was changed by version “bone50”
Thanks to Google, I found a code snippit, that should work.
dev = WATCHDOGDEV;
/* Once the watchdog device file is open, the watchdog will be activated by
the driver */
fd = open(dev, O_RDWR);
if (-1 == fd) {
fprintf(stderr, "Error: %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
/* The 'V' value needs to be written into watchdog device file to indicate
that we intend to close/stop the watchdog. Otherwise, debug message
'Watchdog timer closed unexpectedly' will be printed
*/
write(fd, "V", 1);
/* Closing the watchdog device will deactivate the watchdog. */
close(fd);
==
I just have to run it after login (I think).
Later;
Bill
"No one could make a greater mistake than he who did nothing because he could
do only a little."
"All that is necessary for the triumph of evil is that good men do nothing"
Edmond Burke (1729 - 1797)
http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book
http://ca.linkedin.com/pub/bill-pretty/2b/b07/602
From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
Behalf Of toni incog
Sent: Sunday, March 01, 2015 3:11 PM
To: beagleboard@googlegroups.com
Subject: [beagleboard] Re: Enable / disable watchdog timer ?
Ok, when I powered up with 5V and usb-otg connected to pc and I shortly press
the power button I can replicate: clean shutdown and instant reboot
Don't know where the reboot is coming from.
here's pmic:
[ 2.897350] input: tps65217_pwr_but as
/devices/ocp.3/44e0b000.i2c/i2c-0/0-0024/input/input0
wrt. watchdog: I assume you mean /dev/watchdog I don't think I have it active.
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_
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.5646 / Virus Database: 4299/9178 - Release Date: 02/25/15
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