Stage 3 boot has the commands you need:
PCIe: Link timeout on port 0, probably the slot is empty
PCIe: Port 1 not in PCIe mode, skipping
PCIe: Port 2 not in PCIe mode, skipping
Net: cvmx_helper_interface: interface 0
cvmx_helper_interface: interface 1
cvmx_helper_interface: interface 4
octeth0, octeth1, octeth2, octeth3
Type the command 'usb start' to scan for USB storage devices.
late_board_init ..
ITUS: SW1 1 Bridge (INNER)
Hit any key to stop autoboot: 0
Octeon cust_private_rhino_itus7x(ram)#
here are the commands available in stage 3:
boot_stage3_CLI.txtbut I've never tested it.
No more: Shield Pro v1, Chaos Calmer, FW 1.51 SP1