Arria 10: Warm Reset Error


I am designing Linux OS for our Custom board which took design reference from Arria 10 SoC.
I have designed uboot binary image by taking reference from

and selected QSPI flash for booting the uboot image.
After loading the uboot and peripheral rbf image in the QSPI flash card , it was observed that the HPS is not booting, their is no output on console window , also the debug uart pin is not toggled.

Also, the nRST pin which is used for warm reset becomes low after continuous intervals for around 55usec .

I am unable to understand whether this reset in generated internally by reset manager (in uboot source code ) and if so how to handle this reset so that the HPS is able to boot??

Thanks and Regards,