Installing openwrt-18.06 on espressobin

Hit any key to stop autoboot: 0
Marvell>> setenv bootcmd 'load mmc 0:1 0x4d00000 boot.scr; source 0x4d00000'
Marvell>> saveenv
Saving Environment to SPI Flash...
SF: Detected mx25u3235f with page size 256 Bytes, erase size 64 KiB, total 4 MiB
Erasing SPI flash...Writing to SPI flash...done
Marvell>> run bootmmc
switch to partitions #0, OK
mmc0 is current device
** File not found boot/openwrt-armada-ESPRESSObin-Image **
** File not found boot/armada-3720-community.dtb **
Bad Linux ARM64 Image magic!
Marvell>>