Can an FPGA reset itself?

Hello forum members,

I'm using a Cyclone IV board and would like to drive the configuration from a microcontroller attached to some pins on its expansion header, as follows:

* on power-up, the FPGA configs itself using the EPCS flash chip

* that config simply wires the EPCS chip through to pins on the expansion header

* the microcontroller can now read and modify the flash chip, i.e. upload a new bitstream

* the puzzle: how to make the FPGA reset and reload from flash again, triggered by the microcontroller

* the challenge is to do this without modifying the board, i.e. no re-wiring of the config button

Preferably, reloading should use a different start address in flash, so that the next full power cycle starts the whole process again. If that's not possible, I could include logic in the application bitstream to wire through as above on startup, and then continue with startup after one second (in case no new bitstream is sent).

My reason for this is to be able to hand out a pre-configured board, which allows occasional reconfiguration without needing a USB blaster on-site.

Is it possible? I'm still exploring and looking through the documentation and resources on the web, so any pointers would be most welcome.

Cheers,

-jcw

PS. I did find http://www.alteraforum.com/forum/showthread.php?t=52583&highlight=can+an+fpga+reset+itself%3f - but it does not seem to lead to an answer.