Messages in this thread | | | Date | Fri, 31 Mar 2023 14:27:48 +0200 | From | Andrew Lunn <> | Subject | Re: [PATCH net v2] net: dsa: mv88e6xxx: Reset mv88e6393x force WD event bit |
| |
On Fri, Mar 31, 2023 at 10:40:13AM +0200, Gustav Ekelund wrote: > From: Gustav Ekelund <gustaek@axis.com> > > The force watchdog event bit is not cleared during SW reset in the > mv88e6393x switch. This is a different behavior compared to mv886390 which > clears the force WD event bit as advertised. This causes a force WD event > to be handled over and over again as the SW reset following the event never > clears the force WD event bit. > > Explicitly clear the watchdog event register to 0 in irq_action when > handling an event to prevent the switch from sending continuous interrupts. > Marvell aren't aware of any other stuck bits apart from the force WD > bit. > > Signed-off-by: Gustav Ekelund <gustaek@axis.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
| |