Configure kernel to enable watchdog in ls1043ardb

[hoanguyen]

Have anyone tried to enable the watchdog feature on LS1043ardb? I am not sure which watchdog driver to include.

thanks

HN

[hoanguyen]

Thanks Pavel!

I followed all instructions and the problem is that the option "[*] PowerPC Book-E Watchdog Timer" is not available in the current SDK 2.0 for LS1043ardb. I searched thru the community posts and someone picked the S3C2410 but it does not work either.

After the system boots up, I can see the /etc/watchdog.conf file but I can't find the device /dev/watchdog at all.

I also added the following:

* mknod /dev/watchdog c 10 130

(* insmod which_watchdog_driver.ko ?????)

So I have 2 questions:

1) What do I need to do to be able to add the "PowerPC Boo-E Watchdog Timer" so I can configure the kernel. Or is this the correct driver? If not, which one should I use in the list of drivers currently available?

2) When should I do a mknod /dev/watchdog c 10 130?

thanks,

Hoa

[Pavel]

Use the following command sequence for watchdog enabling on the LS1043ARDB board:

1. bitbake -c cleansstate virtual/kernel
2. bitbake -c patch virtual/kernel
3. bitbake -c menuconfig virtual/kernel

Enable watchdog. See attached files.

4. Rebuild kernel:

bitbake virtual/kernel

5. Rebuild .itb file

bitbake fsl-image-kernelitb

6. Load .itb file to the board and boot using this ITB file.

7. Test watchdog using the following commands:

# watchdog /dev/watchdog

# ps -ae | grep watchdog

Have a great day,
Pavel Chubakov

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[Pavel]

Look at attached files.

These files contain part of NXP Linux SDK 2.0 Documentation for watchdog using and screenshots for watchdog enablement under this SDK.

Have a great day,
Pavel Chubakov

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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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