mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-12-19 16:31:27 +01:00
11da3403e9
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>
82 lines
2.1 KiB
ReStructuredText
82 lines
2.1 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+:
|
|
|
|
.. index::
|
|
single: tftpput (command)
|
|
|
|
tftpput command
|
|
===============
|
|
|
|
Synopsis
|
|
--------
|
|
|
|
::
|
|
|
|
tftpput address size [[hostIPaddr:]filename]
|
|
|
|
Description
|
|
-----------
|
|
|
|
The tftpput command is used to transfer a file to a TFTP server.
|
|
|
|
By default the destination port is 69 and the source port is pseudo-random.
|
|
The environment variable *tftpsrcp* can be used to set the source port and the
|
|
environment variable *tftpdstp* can be used to set the destination port.
|
|
|
|
address
|
|
memory address where the data starts
|
|
|
|
size
|
|
number of bytes to be transferred
|
|
|
|
hostIPaddr
|
|
IP address of the TFTP server, defaults to the value of environment
|
|
variable *serverip*
|
|
|
|
filename
|
|
path of the file to be written. If not provided, the client's IP address is
|
|
used to construct a default file name, e.g. C0.A8.00.28.img for IP address
|
|
192.168.0.40.
|
|
|
|
Example
|
|
-------
|
|
|
|
In the example the following steps are executed:
|
|
|
|
* setup client network address
|
|
* load a file from the SD-card
|
|
* send the file via TFTP to a server
|
|
|
|
::
|
|
|
|
=> setenv autoload no
|
|
=> dhcp
|
|
BOOTP broadcast 1
|
|
DHCP client bound to address 192.168.1.40 (7 ms)
|
|
=> load mmc 0:1 $loadaddr test.txt
|
|
260096 bytes read in 13 ms (19.1 MiB/s)
|
|
=> tftpput $loadaddr $filesize 192.168.1.3:upload/test.txt
|
|
Using ethernet@1c30000 device
|
|
TFTP to server 192.168.1.3; our IP address is 192.168.1.40
|
|
Filename 'upload/test.txt'.
|
|
Save address: 0x42000000
|
|
Save size: 0x3f800
|
|
Saving: #################
|
|
4.4 MiB/s
|
|
done
|
|
Bytes transferred = 260096 (3f800 hex)
|
|
=>
|
|
|
|
Configuration
|
|
-------------
|
|
|
|
The command is only available if CONFIG_CMD_TFTPPUT=y.
|
|
|
|
CONFIG_TFTP_BLOCKSIZE defines the size of the TFTP blocks sent. It defaults
|
|
to 1468 matching an ethernet MTU of 1500.
|
|
|
|
CONFIG_TFTP_WINDOWSIZE can be used to set the TFTP window size of transmits
|
|
after which an ACK response is required. The window size defaults to 1.
|
|
|
|
If CONFIG_TFTP_TSIZE=y, the progress bar is limited to 50 '#' characters.
|
|
Otherwise an '#' is written per UDP package which may decrease performance.
|