Messages in this thread | | | Date | Tue, 09 Aug 2022 12:27:27 +0200 | From | Michael Walle <> | Subject | Re: [PATCH] Revert "reset: microchip-sparx5: allow building as a module" |
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Hi Steen,
Am 2022-08-09 12:19, schrieb Steen Hegelund: > Sorry, but most people have been OOO (including me), so this has > delayed the response. > > The protection bit protects the VCore Shared Bus (SBA) blocks shown on > Figure 5-1. VCore System > Block Diagram in the Datasheet. So in this case also the watchdog > (which is the WDT block). > > I hope this clarifies the usage.
Actually, it does not. The watchdog was just an example. I'm questioning the use of this reset for the switch block. Esp. as it turns out that not even microchip knows what blocks are actually reset.
This reset was first introduced for the DSA switch, since then more and more spurious errors were discovered and it turns out all of these errors was because the "switch" reset had some severe side effects, like resetting the GPIO core and thus turning all the GPIOs to input mode which then took some peripherals into reset.
-michael
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