Is the manual you are referring to the steps in Rocketboard ( https://rocketboards.org/foswiki/Documentation/BuildingBootloaderCycloneVAndArria10#Arria_10_SoC_45_Boot_from_QSPI) ?
While flashing the binaries into the QSPI did you flash it using the "quartus_hps" tool or did you manually write them in the U-Boot?
Did you met any errors while you are running any of the steps?
I will be closing this case as you have created another forum case for this issue.
If you still need further assistance, you are welcome reopen this case within 20days or open a new case, someone will be right with you.