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| author | Patrick Delaunay <patrick.delaunay@foss.st.com> | 2021-06-02 13:56:45 +0200 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2021-06-09 00:13:26 +0200 |
| commit | ed9720d0550693cd8a9087906cc8264f86f59fd7 (patch) | |
| tree | ea0e24399dd1283763e1e93fdda2906632e3212b | |
| parent | 0703f5923baa92026fab87272ca208825901809e (diff) | |
| download | u-boot-ed9720d0550693cd8a9087906cc8264f86f59fd7.tar.gz u-boot-ed9720d0550693cd8a9087906cc8264f86f59fd7.tar.xz u-boot-ed9720d0550693cd8a9087906cc8264f86f59fd7.zip | |
doc: usage: man-page for pinmux command
Provide a man-page for the pinmux command.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
| -rw-r--r-- | doc/usage/index.rst | 1 | ||||
| -rw-r--r-- | doc/usage/pinmux.rst | 95 |
2 files changed, 96 insertions, 0 deletions
diff --git a/doc/usage/index.rst b/doc/usage/index.rst index 41b247bc62..e5717b7141 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -36,6 +36,7 @@ Shell commands mbr md mmc + pinmux pstore qfw reset diff --git a/doc/usage/pinmux.rst b/doc/usage/pinmux.rst new file mode 100644 index 0000000000..9f4392cd0d --- /dev/null +++ b/doc/usage/pinmux.rst @@ -0,0 +1,95 @@ +.. SPDX-License-Identifier: GPL-2.0+: + +pinmux command +============== + +Synopsis +-------- + +:: + + pinmux list + pinmux dev [pincontroller-name] + pinmux status [-a | pin-name] + +Description +----------- + +The pinmux command is used to show the pin-controller muxing. + +The 'pinmux list' command diplays the available pin-controller. + +The 'pinmux dev' command selects the pin-controller for next commands. + + pincontroller-name + name of the pin-controller to select + +The 'pinmux status' command displays the pin muxing information. + + \-a + display pin muxing of all pin-controllers. + pin-name + name of the pin to display + +Example +------- + +:: + + => pinmux list + | Device | Driver | Parent + | pinctrl-gpio | sandbox_pinctrl_gpio | root_driver + | pinctrl | sandbox_pinctrl | root_driver + => + => pinmux dev pinctrl + dev: pinctrl + => + => pinmux status + P0 : UART TX. + P1 : UART RX. + P2 : I2S SCK. + P3 : I2S SD. + P4 : I2S WS. + P5 : GPIO0 bias-pull-up input-disable. + P6 : GPIO1 drive-open-drain. + P7 : GPIO2 bias-pull-down input-enable. + P8 : GPIO3 bias-disable. + => + => pinmux status P0 + P0 : UART TX. + => + => pinmux status -a + -------------------------- + pinctrl-gpio: + a0 : gpio input . + a1 : gpio input . + a2 : gpio input . + a3 : gpio input . + a4 : gpio input . + a5 : gpio output . + a6 : gpio output . + a7 : gpio input . + a8 : gpio input . + a9 : gpio input . + -------------------------- + pinctrl: + P0 : UART TX. + P1 : UART RX. + P2 : I2S SCK. + P3 : I2S SD. + P4 : I2S WS. + P5 : GPIO0 bias-pull-up input-disable. + P6 : GPIO1 drive-open-drain. + P7 : GPIO2 bias-pull-down input-enable. + P8 : GPIO3 bias-disable. + +Configuration +------------- + +The pinmux command is only available if CONFIG_CMD_PINMUX=y. + +Return value +------------ + +The return value $? is set to 0 (true) if the command succeded and to 1 (false) +otherwise. |