What is the correct "bootcmd" value for NFS with the new uBoot? (no replies)

With the new uBoot, the default env var

bootcmd=run bootcmd_uenv; run scan_disk; run set_bootargs; run bootcmd_exec

According to some tutorial about NFS boot,

Bootcmd=usb start; run force_rescue_bootcmd; run ubifs_bootcmd; run usb_bootcmd; usb stop; run net_bootcmd; run rescue_bootcmd; run pogo_bootcmd; reset

or

bootcmd=run bootcmd_usb; run bootcmd_mmc; run bootcmd_sata; run net_bootcmd; run bootcmd_pogo; reset

I’ve read "Booting process in multiple drives configuration", but still I have no idea how to set the bootcmd to support NFS and other devices in the load chain for the new uBoot.