diff options
| author | Tom Rini <[email protected]> | 2022-09-02 09:09:47 -0400 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2022-09-02 09:09:47 -0400 |
| commit | 67fe8cc0016756f3479288b3f67d59a517e512d5 (patch) | |
| tree | 09b698eec7eab77e832ac49f0461d8ee07cd86a4 /doc/usage/cmd | |
| parent | 4e10c1227aa879af809b3073bf917289f23e17d7 (diff) | |
| parent | 2ac4c98ad3552609fdf04d874e60ef2c073c4689 (diff) | |
Merge tag 'efi-2022-10-rc4' of https://source.denx.de/u-boot/custodians/u-boot-efi
Pull request for efi-2022-10-rc4
Documentation:
* add a page on sending patches
* bindings for FWU Metadata mtd storage
* fpio status output fields description
UEFI:
* ensure all block devices are probed
Diffstat (limited to 'doc/usage/cmd')
| -rw-r--r-- | doc/usage/cmd/gpio.rst | 42 |
1 files changed, 42 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] [email protected] + GPIOA13: output: 1 [x] red.gpios + + Bank GPIOB: + GPIOB0: func rgmii-0 + GPIOB1: func rgmii-0 + GPIOB2: func uart4-0 + GPIOB7: input: 0 [x] [email protected] + GPIOB11: func rgmii-0 + Configuration ------------- |