On 09/19/2011 05:04 PM, Fabio Estevam wrote: > Hi Stefano, > > On Fri, Sep 16, 2011 at 4:46 AM, Stefano Babic <sba...@denx.de> wrote: >> On 09/16/2011 01:18 AM, Fabio Estevam wrote: >> >> Hi Fabio, >> >>> When booting a mainline kernel on a mx31pdk the system gets getting resets >>> from the watchdog. >>> >>> As the kernel has watchdog support, disable it from U-boot. >> >> But if the kernel has support for watchdog, why does the system reset ? >> I checked this board and the watchdog in u-boot is set to 64 seconds, >> that is the maximum value. It is surely enough for kernel to boot and to >> start triggering the watchdog. If the system still reboots, it seems to >> me that this is an issue to be fixed in kernel, not in u-boot. I am sure >> I have tested in the past (not recently) the QONG board with enabled >> watchdog, using also the imx2_wdt driver in kernel. > > I have sent a patch to the ARM kernel list to add watchdog support for > qong board: > http://lists.infradead.org/pipermail/linux-arm-kernel/2011-September/065698.html
Ok, thanks. > > Can you please try it and let me know if you get resets when watchdog > is enabled in U-boot > and kernel? It works, the board does not get reset (of course, it is required to trigger at least once the watchdog under the kernel). I send my Tested-by to linux-arm. Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: off...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
