[at91sam9g45] fail to start second kernel via kexec if watchdog is enabled

[Jean-Christophe PLAGNIOL-VILLARD]

On 12:43 Wed 21 Oct     , Yegor Yefremov wrote:
> Hello,
> 
> I have problem booting the second kernel after enabling the watchdog following these steps: http://www.at91.com/index.php?option=com_jfusion&Itemid=57&jfile=viewtopic.php&f=12&t=5551&p=29283&hilit=watchdog+bootstrap#p29283
> Bootstrap: don't touch watchdog
> U-Boot: configure watchdog and set the timer counter value to 16 seconds
> Linux: keep pinging the watchdog
> 
> The first kernel (booted from u-boot) is working as expected, but if I start the new one using kexec it gets only till frame buffer init:
> 
> ....
> NetWinder Floating Point Emulator V0.97 (double precision)
> Slow work thread pool: Starting up
> Slow work thread pool: Ready
> JFFS2 version 2.2. (NAND) -¬ 2001-2006 Red Hat, Inc.
> msgmni has been set to 245
> io scheduler noop registered
> io scheduler anticipatory registered (default)
> atmel_lcdfb atmel_lcdfb.0: backlight control is not available
> atmel_lcdfb atmel_lcdfb.0: 510KiB frame buffer at 77980000 (mapped at ffa00000)
> Start AT91Bootstrap...
> 
> Without watchdog there is no problem. Both kernels (2.6.32-rc5) are the same. Any idea?
do you enable the watchdog in the send kernel?

Best Regards,
J.