@stephenw10
Success!
For the record, I used the following to format the M.2 SSD/SCSCI:
trim /dev/ada0
gpart create -s GPT ada0
gpart show ada0
Per your guidance I modified the bootcmd env var in Marvell (adding "run scsiboot"):
setenv bootcmd 'run setLED; run mmcboot; run scsiboot; run usbboot; run net;'
I then ran "run usbboot" to kick off my inserted usb thumb drive to install the firmware onto the M.2.
I left my usb drive in after reboot & it picked up the config.xml & correctly reconfigured my firewall, per the documentation.
Thanks,
Paul