PRINTENV
LITE5200B User’s Manual, Rev. 0
Freescale Semiconductor
7-45
7.43
PRINTENV
printenv
–Print values of all environment variables.
printenv name ...
– Print value of environment variable 'name'.
The
printenv
command prints one, several or all variables of the U-Boot environment. When arguments
are given, these are interpreted as the names of environment variables which will be printed with their
values:
=> printenv ipaddr hostname netmask
ipaddr=10.0.0.99
hostname=tqm
netmask=255.0.0.0
=>
Without arguments, printenv prints all a list with all variables in the environment and their values, plus
some statistics about the current usage and the total size of the memory available for the environment.
=> printenv
baudrate=115200
serial#=TQM860LDDBA3-P50.203 10226122 4
ethaddr=00:D0:93:00:28:81
bootdelay=5
loads_echo=1
clocks_in_mhz=1
load=tftp 100000 /tftpboot/ppcboot.bin
update=protect off all;era 1:0-4;cp.b 100000 40000000 $(filesize);setenv filesize;saveenv
rtai=tftp 100000 /tftpboot/pImage.rtai;run nfsargs;run addip;bootm
preboot=echo;echo Type "run flash_nfs" to mount root filesystem over NFS;echo
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath)
addip=setenv bootargs $(bootargs)
ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname):$(netdev):off panic=1
flash_nfs=run nfsargs;run addip;bootm $(kernel_addr)
kernel_addr=40040000
netdev=eth0
hostname=tqm
rootpath=/opt/hardhat/devkit/ppc/8xx/target
ramargs=setenv bootargs root=/dev/ram rw
flash_self=run ramargs;run addip;bootm $(kernel_addr) $(ramdisk_addr)
ramdisk_addr=40100000
bootcmd=run flash_self