[crux-arm] CRUX-ARM on Raspberry PI zero

Hi all, I'm trying to run CRUX-ARM 3.5 (or any other version) to a Raspberry PI zero, but no way to make it works. I successfully cross-compiled last kernel with pi zero config, as described here <https://www.raspberrypi.org/documentation/linux/kernel/building.md> but I'm having kernel panic at boot. Has anybody successfully run CRUX-ARM on PI zero? Thanks Guido