Mine

baudrate=115200
bootdelay=1
flstart=ff000000
flend=ffdfffff
erasefl=protect off $(flstart) $(flend); erase $(flstart) $(flend)
bootcmd=bootm ff000000
bootargs=console=ttyS0,115200n8 root=/dev/mtdblock2 rootfstype=jffs2 rw init=/linuxrc
kstart=ff000000
kend=ff1fffff
erasek=protect off $(kstart) $(kend); erase $(kstart) $(kend)
copyk=cp.b 1000000 $(kstart) $(filesize)
copykb=run erasek; run copyk; boot
filesize=600000
copyr=cp.b 1000000 $(flstart) $(filesize)
copyrb=run erasefl; run copyr; boot
stdin=serial
stdout=serial
stderr=serial