...
Usage: mkubootenv <path/outfile> <mac> <phy> <boot_mode> [usrvar=usrval]
i.e.: mkubootenv /home/uboot.env 00:01:02:03:04:05 0x1 sdboot_rtems
i.e.: mkubootenv /home/uboot.env 00:00:00:00:00:00 0x1 sdboot_linux noswitchnocm=1
...
Usage: mkubootenv <path/outfile> <mac> <phy> <boot_mode> [usrvar=usrval]
i.e.: mkubootenv /home/uboot.env 00:01:02:03:04:05 0x1 sdboot_rtems
i.e.: mkubootenv /home/uboot.env 00:00:00:00:00:00 0x1 sdboot_linux noswitchnocm=1