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The
bdinfo command (short:
bdi)
prints the information that U-Boot passes about the
board such as memory addresses and sizes, clock frequencies,
MAC address,
etc. This information is mainly needed to be passed to the Linux
kernel.
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The
coninfo command (short:
conin) displays information about the available
console I/O devices.
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The output contains the device name, flags, and the current usage.
For example, the output
serial 80000003 SIO stdin stdout stderr
means that the
serial device is a system device
(flag
'S') which provides input (flag
'I') and output (flag
'O')
functionality and is currently assigned to the 3 standard I/O streams
stdin,
stdout and
stderr.
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The command
flinfo (short:
fli)
can be used to get information about the available flash memory (see
Flash Memory Commands below).
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iminfo (short:
imi) is used to
print the header information for images like Linux kernels or
ramdisks. It prints (among other information) the image name, type
and size and verifies that the CRC32 checksums stored within the
image are OK.
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Like with many other commands, the exact operation of this command
can be controlled by the settings of some U-Boot environment
variables (here: the
verify variable). See below
for details.
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The
help command (short:
h or
?) prints online help. Without any
arguments, it prints a list of all U-Boot commands that are available
in your configuration of U-Boot. You can get detailed information for
a specific command by typing its name as argument to the
help
command:
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