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U-Boot
ATCA-F125 (6873M Artwork) Installation and Use (6806800J94K
)
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
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