Artesyn ATCA-F120 Installation and Use (August 2014) - Manual (Page 101)

U-Boot Firmware
ATCA-F120 Installation and Use (6806800D06J) 101
5.10 ATCA-F120-Specific U-Boot Environment
Variables
The following table lists ATCA-F120 specific U-Boot environment variables.
bootsel
0|1|switch
Selects the boot flash which the ATCA-F120 is to boot from after the
next restart. 0 selects boot flash 0, 1 selects boot flash 1, and switch
selects the currently not selected boot flash, i.e. switches between the
boot flashes.
Table 5-8 ATCA-F120 Specific U-Boot Commands (continued)
Command Description
Table 5-9 ATCA-F120 Specific U-Boot Environment Variables
Environment
Variable
Description
Default
Value
Is Read Only
post_contro
l
See Table "Environment Variable
post_control" on page 100
No
Default
value No
phy_locallo
op
Can be set to 10/100/1000 to configure a
ETSEC port into PHY local loopback mode No
Default
value No
firmware_bu
ild
Firmware-build count. Build
Count Yes
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. No
Default
value No
noboot
When set to 1, the boot sequence is stopped
before control is transferred to the Linux
operating system. and the boot parameters
are printed on the screen. No
Default
value No