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-rw-r--r--doc/usage/cmd/gpio.rst42
-rw-r--r--doc/usage/cmd/tftpput.rst87
-rw-r--r--doc/usage/index.rst1
3 files changed, 130 insertions, 0 deletions
diff --git a/doc/usage/cmd/gpio.rst b/doc/usage/cmd/gpio.rst
index f6a5668388c..ee902138f16 100644
--- a/doc/usage/cmd/gpio.rst
+++ b/doc/usage/cmd/gpio.rst
@@ -45,6 +45,31 @@ gpio status
Display the status of one or multiple GPIOs. By default only claimed GPIOs
are displayed.
+gpio status command output fields are::
+
+ <name>: <function>: <value> [x] <label>
+
+*function* can take the following values:
+
+output
+ pin configured in gpio output, *value* indicates the pin's level
+
+input
+ pin configured in gpio input, *value* indicates the pin's level
+
+func
+ pin configured in alternate function, followed by *label*
+ which shows pinmuxing label.
+
+unused
+ pin not configured
+
+*[x]* or *[ ]* indicate respectively if the gpio is used or not.
+
+*label* shows the gpio label.
+
+Parameters
+----------
-a
Display GPIOs irrespective of being claimed.
@@ -77,6 +102,23 @@ Switch the status of a GPIO::
=> echo $myvar
0
+Show the GPIO status::
+
+ => gpio status
+ Bank GPIOA:
+ GPIOA1: func rgmii-0
+ GPIOA2: func rgmii-0
+ GPIOA7: func rgmii-0
+ GPIOA10: output: 0 [x] hdmi-transmitter@39.reset-gpios
+ GPIOA13: output: 1 [x] red.gpios
+
+ Bank GPIOB:
+ GPIOB0: func rgmii-0
+ GPIOB1: func rgmii-0
+ GPIOB2: func uart4-0
+ GPIOB7: input: 0 [x] mmc@58005000.cd-gpios
+ GPIOB11: func rgmii-0
+
Configuration
-------------
diff --git a/doc/usage/cmd/tftpput.rst b/doc/usage/cmd/tftpput.rst
new file mode 100644
index 00000000000..52ba7b179a0
--- /dev/null
+++ b/doc/usage/cmd/tftpput.rst
@@ -0,0 +1,87 @@
+.. SPDX-License-Identifier: GPL-2.0+:
+
+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.
+If CONFIG_TFTP_PORT=y, 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.
+
+If CONFIG_TFTP_PORT=y, the environment variables *tftpsrcp* and *tftpdstp* can
+be used to set the source and the destination ports.
+
+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.
+
+Return value
+------------
+
+The return value $? is 0 (true) on success and 1 (false) otherwise.
diff --git a/doc/usage/index.rst b/doc/usage/index.rst
index 73966c6e012..0fda121026e 100644
--- a/doc/usage/index.rst
+++ b/doc/usage/index.rst
@@ -66,6 +66,7 @@ Shell commands
cmd/scp03
cmd/setexpr
cmd/size
+ cmd/tftpput
cmd/true
cmd/ums
cmd/wdt