How to load firmware using osmocon

Just for future reference I decide to write down these commands.

Loading firmware on Motorola W220:

/osmocom-bb/src/host/osmocon/osmocon -p /dev/ttyUSB1 -m romload nuttx.bin

Loading firmware on C115:

/osmocom-bb/src/host/osmocon/osmocon -p /dev/ttyUSB1 -m c123xor /osmocom-bb/src/target/firmware/board/compal_e88/chainload.compalram.bin -c nuttx.bin

Note: NuttX is running fine on W220, but although it says it is running on C115 I cannot see nothing on serial console.