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https://source.denx.de/u-boot/u-boot.git
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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>
93 lines
2.2 KiB
ReStructuredText
93 lines
2.2 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+:
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.. index::
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single: pinmux (command)
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pinmux command
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==============
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Synopsis
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--------
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::
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pinmux list
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pinmux dev [pincontroller-name]
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pinmux status [-a | pin-name]
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Description
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-----------
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The pinmux command is used to show the pin-controller muxing.
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The 'pinmux list' command diplays the available pin-controller.
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The 'pinmux dev' command selects the pin-controller for next commands.
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pincontroller-name
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name of the pin-controller to select
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The 'pinmux status' command displays the pin muxing information.
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\-a
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display pin muxing of all pin-controllers.
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pin-name
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name of the pin to display
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Example
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-------
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::
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=> pinmux list
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| Device | Driver | Parent
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| pinctrl-gpio | sandbox_pinctrl_gpio | root_driver
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| pinctrl | sandbox_pinctrl | root_driver
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=>
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=> pinmux dev pinctrl
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dev: pinctrl
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=>
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=> pinmux status
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P0 : UART TX.
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P1 : UART RX.
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P2 : I2S SCK.
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P3 : I2S SD.
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P4 : I2S WS.
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P5 : GPIO0 bias-pull-up input-disable.
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P6 : GPIO1 drive-open-drain.
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P7 : GPIO2 bias-pull-down input-enable.
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P8 : GPIO3 bias-disable.
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=>
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=> pinmux status P0
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P0 : UART TX.
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=>
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=> pinmux status -a
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--------------------------
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pinctrl-gpio:
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a0 : gpio input .
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a1 : gpio input .
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a2 : gpio input .
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a3 : gpio input .
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a4 : gpio input .
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a5 : gpio output .
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a6 : gpio output .
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a7 : gpio input .
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a8 : gpio input .
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a9 : gpio input .
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--------------------------
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pinctrl:
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P0 : UART TX.
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P1 : UART RX.
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P2 : I2S SCK.
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P3 : I2S SD.
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P4 : I2S WS.
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P5 : GPIO0 bias-pull-up input-disable.
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P6 : GPIO1 drive-open-drain.
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P7 : GPIO2 bias-pull-down input-enable.
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P8 : GPIO3 bias-disable.
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Configuration
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-------------
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The pinmux command is only available if CONFIG_CMD_PINMUX=y.
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