1altbootcmd=run ${subbootcmds}
2bootcmd=run ${subbootcmds}
3configure=km_setboardid && saveenv && reset
4subbootcmds=tftpfdt tftpkernel nfsargs add_default boot
5nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:/opt/eldk/${arch}
6tftpkernel=tftpboot ${load_addr_r} ${hostname}/uImage
7