Arduino Zero (EDBG chip)

Hi everybody
Can I reprogram EDBG chip on Arduino Zero board. How can I do it, if yes?
I have Atmel-ICE for reprogramming, if needs

I want to upload debugging software to EDBG chip. How can I do it? Where can I find the Debugging software?

Why? Atmel Studio will install new firmware, probably, but it’s atmel proprietary stuff and I don’t think source code is available. Also, it’s an avr32 chip...