Appendix b, U-boot environment variables, In appendix b – SBE HighWire HW400c/2 User Manual
Page 103

HighWire HW400c/2 User Reference Guide Rev 1.0
Appendix B
U-Boot Environment variables
n source boot and debug firmware. A
U-boo
.de/wiki/bin/view/DULG/Manual
Das U-boot was created by Wolfgang Denk as an ope
complete
t manual can be found at
http://www.denx
.
ndix i
s accessed by entering the
help
Note:
ands m
d'
ootd
- boot default, i.e., run 'bootcmd'
bootm
- boot application image from memory
bootp
- boot image via network using BootP/TFTP protocol
cmp
- memory compare
coninfo
- print console devices and information
cp
- memory copy
cpld
- Microwire EEPROM Access Subsystem
crc32
- checksum calculation
dcache
- enable or disable data cache
docload
- load boot image from disk-on-chip
echo
- echo args to console
eeprom
- EEPROM sub-system
erase
- erase FLASH memory
flinfo
- print FLASH memory information
fsinfo
- print information about filesystems
fsload
- load binary file from a filesystem image
go
- start application at address 'addr'
help
- print online help
icache
- enable or disable instruction cache
icrc32
- checksum calculation
iloop
- infinite loop on address range
imd
- i2c memory display
iminfo
- print header information for application image
imls
- list all images found in flash
imm
- i2c memory modify (auto-incrementing)
imw
- memory write (fill)
inm
- memory modify (constant address)
iprobe
- probe to discover valid I2C chip addresses
itest
- return true/false on integer compare
loadb
- load binary file over serial line (kermit mode)
loads
- load S-Record file over serial line
loop
- infinite loop on address range
ls
- list files in a directory (default /)
md
- memory display
mm
- memory modify (auto-incrementing)
This appe
s a brief list of known U-boot environment variable
command
or ? at the debug prompt.
Some comm
ay not work on the SBE HW400c/2.
?
- alias for 'help'
askenv
- get environment variables from stdin
autoscr
- run script from memory
base
- print or set address offset
bdinfo
- print Board Info structure
boot
- boot default, i.e., run 'bootcm
b
October 10, 2006
Copyright 2006, SBE, Inc.
Page
91