Application jump to Bootloader

Hi,

I need some help with triggering an application restart from bootloader.

In my system I have an on-chip RAM (where bootloader resides) and an SRAM where application will be running. The reset vector is located in the onchip RAM.
If I jump to the reset vector location, the Nios reboots but starts from the application and does not execute the bootloader.

How can I force the execution of the bootloader?

Thanks!