rework watchdog timer and reset system #692
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stnolting
changed the title
add additional reset cause information
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This PR adds a new register to the watchdog module (WDT) that is used to reset the internal timeout counter. A specific 32-bit word (a.k.a. "the password") has to be written to this register to actually reset the timer (making it less likely for a rogue CPU to reset the WDT).
Additionally, the WDT now provides a "strict" bit in its control register. When enabled a hardware reset will be enforced if
RESETorFurthermore, the processor's reset system is slightly reworked.