Artesyn ATCA-F125 Installation and Use Guide (April 2014) - Manual (Page 112)

U-Boot
ATCA-F125 (6873M Artwork) Installation and Use (6806800J94J) 112
5.10 ATCA-F125-Specific U-Boot Environment
Variables
Table 5-9 ATCA-F125 Specific U-Boot Environment Variables
Environment Variable Description
post_control
See Table "Environment Variable post_control" on page 110
phy_localloop
Can be set to 10/100/1000 to configure a ETSEC port into PHY
local
loopback mode
firmware_build
Firmware-build count (read-only)
inicmd
Can be used to define a command sequence to be executed at
the end of the boot sequence, i.e. before the shell or bootcmd
are executed
drvargs
Contains blade-specific values for the Linux kernel command
line. It should be part of the bootargs environment variable.
reset_cause
Indicates the reason for the last reset. Possible values are:

warm
: CPU reset

power:
Power-on

frpl_pb:
Face plate push button

rtm_pb:
RTM push button)

cpu_hreset
: CPU HRESET_REQ

cop_hreset:
COP HRESET

ipmc::
IPMC reset request

sw_wdog:
Software watchdog reset

ini_wdog
: Initial watchdog reset
post_result
Contains the POST result string, if POST has been executed
rom_corruption
Set to 1 if the CRC of the u-boot image is incorrect