Artesyn COMX-P40x0 ENP2 Installation and Use (January 2015) - Manual (Page 131)

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COMX-P40x0 ENP2 Installation and Use (6806800R95C) 131
The following are the examples of critical environment variables:
7.23.2 NORboot
The COMX-P40x0 ENP2 has a U-Boot variable called "norboot"
setenv bootargs root=/dev/ram rw console=$consoledev,$baudrate
$hwbootargs $othbootargs;bootm $norbootaddr $norfsaddr $norfdtaddr
"norboot" will load RAMDISK, Linux kernel and DTB from NOR Flash into RAM then boot.
The following are the critical environment variables for "norboot":
The following are the examples of critical environment variables:
7.23.3 NANDboot
The COMX-P40x0 ENP2 has a U-Boot variable called "nandboot".
nandboot=setenv bootargs root=/dev/$jffs2nand rw
console=$consoledev,$baudrate rootfstype=jffs2 $hwbootargs
$othbootargs;bootm $norbootaddr - $norfdtaddr
=> setenv ethact FM1@DTSEC1
=> setenv ramdiskfile comx_p4080/COMX_P4080_V100R00/rootfs_ext2.img
=> setenv bootfile comx_p4080/COMX_P4080_V100R00/uImage
=> setenv fdtfile comx_p4080/COMX_P4080_V100R00/comx.dtb
norfsaddr - RAMDISK address on NOR FLASH
norbootaddr - Linux kernel address on NOR FLASH
norfdtaddr - DTB address on NOR FLASH
=> setenv norfsaddr E9000000
=> setenv norbootaddr EE000000
=> setenv norfdtaddr EFD00000