Right... you need to recover as described above. This is where you enter those recovery commands... All those options mentioned in my first post should be available - specifically:
ICX64XX-boot>> ?
? - alias for 'help'
boot - boot default, i.e., run 'bootcmd'
boot_primary - primary boot; boot from primary partition
boot_secondary - secondary boot; boot from secondary partition
cp - memory copy
eeprom - EEPROM dump or program command
help - print online help
i2cprobe - Get special i2c device id
md - memory display
memtest - To perform DDR memory test
pci - list and access PCI Configuration Space
ping - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
reset - Perform RESET of the CPU
saveenv - save environment variables to persistent storage
setenv - set environment variables
sflash - read, write or erase the external SPI Flash.
tftpboot- boot image via network using TFTP protocol
update_primary - primary update; update primary partition
update_secondary - secondary update; update secondary partition
update_uboot - get the uboot image over tftp.
version - print monitor version
Looks like everything you need is at your firngertips