WATCHDOG question

Marc Kleine-Budde mkl at
Wed Sep 15 03:23:52 EDT 2010

On 09/15/2010 05:27 AM, James Robinson wrote:
>  Hello,
> I have created my own port of our i.MX27 board and it is running great.
> One of the final things I need to get working is my external watchdog
> code. I added the code to my board's wamce.c (my boards main "C" file)
> and CONFIG_WATCHDOG=1 in config.h. I see that it is in-fact getting
> called from the device drivers. But.... when I break into the shell, I
> don't see it being called. I found that the simple shell has a watchdog
> kick in the readline function, but has anyone implemented the watchdog
> with the hush shell?
> I have gotten the following to work and would like to thank the group
> for making it REALLY easy to get it working...
> 1) NAND flash
> 2) ethernet.
> 3) i2c - I can see my 2 i2c buses and also talk to my SM buss controller.
> 4) GPIO for fan,leds, and power button.
> 5) HS usb host. (still need to get FS host to work) I can see our hub's
> and touch controller.

I've implemented a generic polling "framework" for barebox. You can
register several functions that should be called.

I'm using it to poll a CAN controller within barebox, but you can add a
(hardware) watchdog, too.

cheers, Marc

Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  |   |

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