Resetting via console or reset button can lock Zynq

[mpv89]

Unclear why this is happening, but sometimes when the push-button to reset the IPMC gets pressed, or after executing the 'restart' command, the Zynq seems to lock, which then requires a power cycle to solve since pressing the reset button again won't do anything.

When locked, the Red LED of the PHY also starts to blink very fast (~5Hz I would say), unclear as well why.

Needs further investigation.

[mpv89]

There is clear indication that it might be related to have a JTAG cable plugged in, still needs further investigation.