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For ADSP-sc573 cortex-A5 how can we configure for watchdog expiry to issue a system reset?

Category: Software
Product Number: ADSP-SC573

I am able to configure watchdog for SHARC core using SEC for issuing an event reset on watchdog expiry. 
How can I do similar for a ARM core, I see that ADSP-sc573 has 3 watchdog timer and I tried taking 0th timer for SHARC and 1st timer for ARM to configure watchdog.
Assigned a watchdog callback which can generate a system reset using RCU but this doesn't work in the way we do for SHARC.
Can anyone help with an example of doing a system reset over watchdog expiry event for a ARM core?