RTM-ATCA-SXXX Overview
6806800H62B ATCA‐S201InstallationandUseGuide31
U-boot command syntax description
and lost if the system is re-booted.
ping <IP address>
Sends an icmp echo address to the designated IP address
(entered in dotted decimal format)
reset
Perform soft reset of the ATCA cpu, forcing a system
reboot.
run <variable_name>
Run a sequence of commands defined in the
environment <variable_name>, for example:
uboot=> run flashboot
version
Displays the version and build date of the U-boot image
running on ATCA blade.
3.6.3 U-boot environment variables
Administrators may display the full list of environment variables using the printenv
command. U-boot includes the following environment variables with pre-assigned
factory default settings.
Table 9 U-boot environment variables shown with printenv
Variable name Default value Description
bootcmd
run flashboot
This variable defines a command string that is
automatically executed when the initial bootdelay
countdown is not interrupted.
flashboot
A sequence of commands, set at manufacturing time.
If in the U-boot console, use run flashboot to boot the
ATCA using the images contained in flash. This command
sequence is executed automatically by bootcmd in a
normal power-up.
ramboot
A sequence of commands, set at manufacturing time.
If in the U-boot console, use run ramboot to boot the
ATCA from the serverip node.
nfsboot
A series of startup commands, set at manufacturing time.
RESERVED for future use.
bootdelay
5
U-boot will wait this number of seconds before it executes
the bootcmd variable. After reset, a countdown message
is printed to the serial console. Pressing any key will
interrupt normal boot and display the U-boot console
prompt.
Value 0 =boot without delay.
Value -1 = disable autoboot, always enter U-boot console
baudrate
115200
RS232 Serial port baud rate, default=115200 (decimal)
(Max: 115200)
loads_echo
1
If set to 1, all characters received during a serial download
(using the loads command) are echoed to the serial
console.
rootpath
/nfsroot
RESERVED for future use.
hostname
Not used
