u-boot/doc/usage/cmd/loadm.rst
Tom Rini 11da3403e9 doc: usage: Add general rule for $?
For nearly all commands in U-Boot the '?' variable is handled the same
way with 0 meaning success, 1 meaning any failure.  Explain this in the
general rules section of the cmdline documentation (with a link to a
counter example) and then remove the redundant wording from most
commands. We retain a section about the return value in a number of
places where we are doing something such as always returning a specific
value or we have useful additional information to go along with the
normal return codes.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2025-10-26 09:03:35 -06:00

46 lines
821 B
ReStructuredText

.. SPDX-License-Identifier: GPL-2.0+:
.. index::
single: loadm (command)
loadm command
=============
Synopsis
--------
::
loadm <src_addr> <dst_addr> <len>
Description
-----------
The loadm command is used to copy memory content from source address
to destination address and, if efi is enabled, will setup a "Mem" efi
boot device.
The number of transferred bytes must be set by bytes parameter
src_addr
start address of the memory location to be loaded
dst_addr
destination address of the byte stream to be loaded
len
number of bytes to be copied in hexadecimal. Can not be 0 (zero).
Example
-------
::
=> loadm ${kernel_addr} ${kernel_addr_r} ${kernel_size}
loaded bin to memory: size: 12582912
Configuration
-------------
The command is only available if CONFIG_CMD_LOADM=y.