16 Aug
2021
16 Aug
'21
3:11 p.m.
On Mon, 16 Aug 2021 15:07:33 +0200 Stefan Roese sr@denx.de wrote:
So the MCU watchdog is some kind of very early WD and only used until the SoC WD is used / enabled?
Yes, this is how it was first thought of for Omnia. Looking at the MCU code it seems that the watchdog can be started again after being disabled, so it could theoretically be used as a normal watchdog. The problem is that it cannot be pinged to reset the counter. It has to be stopped and started again, meaning there is a small window when it is disabled. If the system used this watchdog, this small window would make it vulnerable, so I don't think we should use it.
Shall I resend this series with this new patch?
Yes, please do.
Will do.
Marek