first ensure that the latest uboot is installed. the first batch of the gw2388 boards do not support SMP if the original uboot is installed.
see uboot-flashing.txt for more details if a update is required


setup a tftp server on 192.168.1.254 which has its file location within the gw2388 binaries directory


sete ipaddr 192.168.1.1
sete serverip 192.168.1.254
erase 0x10060000 0x10ffffff
tftpboot 0x100000 uImage.bin
cp.b 0x100000 0x10060000 $(filesize)
reset

thats all

future updates can be done by webinterface