[U-Boot] (no subject)

[Bojan Buić]

Which register I need set up for hard. watchdog ?

Bojan


2013/11/21 Stefano Babic <sbabic at denx.de>

> Hi Bojan,
>
> On 21/11/2013 09:09, Bojan Buić wrote:
> > I'm trying in board iMX233-OLinuXino-MICRO
> > (
> https://www.olimex.com/Products/OLinuXino/iMX233/iMX233-OLinuXino-MICRO/open-source-hardware
> )
> > setup hardware watchdogin the uboot.
> >
> > I checkout uboot code and recompile it(I found steps here :
> > http://www.jann.cc/2013/02/07/u_boot_for_the_imx233_olinuxino.html).
> >
> > I tried to call a function hw_watchdog_init from class: imx_watchdog.c
> > (
> http://git.denx.de/?p=u-boot.git;a=blob;f=drivers/watchdog/imx_watchdog.c;h=d5993b4d26d6ba6018031cc5b31f7966d13a5ca8;hb=c2e5e802ecb7ab668ce9911b210ed68c804b349f
> )
> > in the code  .
> >
> > In this method, I uncomment line # define CONFIG_WATCHDOG_TIMEOUT_MSECS
> > 128000 and I expected that the system will be restarted after, 128
> > seconds, but did not.
> > I am sure that this method(hw_watchdog_init) is called because before
> > and after i write debug messages to console
>
> Wait...
>
> Checking the Makefile in the drivers/watchdog directory:
>
> ifneq (,$(filter $(SOC), mx31 mx35 mx5 mx6 vf610))
> obj-y += imx_watchdog.o
> endif
>
> That is: watchdog is supported for other i.MX families. It is not
> surprising if it is not working, I am surprised that hw_watchdog_init is
> called, because imx_watchdog should not be compiled.
>
> I have not checked inside MX23 manual, but if it is as in MX28 you have
> to enable the watchdog inside the RTC. It works in a different way as in
> other imx, and the current driver is not suitable for MX23. You have to
> add support for it.
>
> Best regards,
> Stefano Babic
>
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-- 
Bojan Buić