Re: [PATCH RESEND] ARM: ep93xx: Disable TS-72xx watchdog before uncompressing

From: Lokesh Vutla
Date: Sun Feb 12 2017 - 22:40:48 EST




On Wednesday 08 February 2017 05:53 PM, Afzal Mohammed wrote:
> Hi,
>
> On Thu, Feb 02, 2017 at 12:12:26PM -0800, Florian Fainelli wrote:
>> The TS-72xx/73xx boards have a CPLD watchdog which is configured to
>> reset the board after 8 seconds, if the kernel is large enough that this
>> takes about this time to decompress the kernel, we will encounter a
>> spurious reboot.
>
> so once it reaches Kernel proper, that dog is being killed, right ?
>
> iirc, TI AM335x's & AM43x's ROM code too leaves the on-chip watchdog
> enabled & the bootloader disables it (else once it boots to prompt, it
> reboots always unless watchdog driver [if present] takes care of it),
> Lokesh, right ?

Yes, that's right. Watchdog is disabled in U-Boot.

Thanks and regards,
Lokesh