[PATCH] drivers: net: Soft reset felix switch core

Vladimir Oltean vladimir.oltean at nxp.com
Sat Nov 27 16:06:13 CET 2021

On Sat, Nov 27, 2021 at 02:52:35PM +0200, Radu Bulie wrote:
> It turns out that in custom designs if the system is reset
> multiple times in conjunction with a slight increase in external
> temperature, the felix  switch starts to behave in a strange way:
> packets are no longer received on the ENECT interface connected
> to the L2switch internal port (the TX side of internal port stops working
> or the packets do not reach there. It is not very clear where
> the packets remain blocked. None of the counters points to a disruption
> in the L2switch)
> The issue is not reproducible on NXP reference designs.
> It was observed that by adding the switch core reset, the problem
> goes aways, even if intensive testing in temperature chambers
> is applied.
> The current patch performs soft reset on the switch core to ensure proper
> operation of the L2switch.
> Signed-off-by: Radu Bulie <radu-andrei.bulie at nxp.com>
> ---

Reviewed-by: Vladimir Oltean <vladimir.oltean at nxp.com>


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