u-boot/board/keymile/scripts/ramfs-common.txt

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addramfs=setenv bootargs "${bootargs} mem=${rootfsaddr} phram.phram=rootfs${boot_bank},${rootfsaddr},${rootfssize}"
actual_bank=-1
altbootcmd=run ${subbootcmds}
bootcmd=run ${subbootcmds}
subbootcmds=tftpfdt tftpkernel setrootfsaddr tftpramfs flashargs add_default addpanic addramfs boot
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath}
configure=km_setboardid && run setramfspram && saveenv && reset
setramfspram=setexpr value 0 + ${rootfssize} && setexpr value 0x${value} / 0x400 && setexpr value 0x${value} + ${pram} && setenv pram 0x${value}
rootfsfile=${hostname}/rootfsImage
setrootfsaddr=setexpr value ${pnvramaddr} - ${rootfssize} && setenv rootfsaddr 0x${value}
tftpkernel=tftpboot ${load_addr_r} ${hostname}/uImage
tftpramfs=tftpboot ${rootfsaddr} ${hostname}/rootfsImage