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author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2022-01-24 16:18:27 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-01-26 10:01:42 +0100 |
commit | 76eb838beb702f6d81768d31cb8f602c2fcc834b (patch) | |
tree | ca0cbd8ea3cd7b53a19d2ec453db9abce78f7711 /Documentation/user/watchdog.rst | |
parent | c0fc382fec29d3faac380098ae462254f2559910 (diff) | |
download | barebox-76eb838beb702f6d81768d31cb8f602c2fcc834b.tar.gz barebox-76eb838beb702f6d81768d31cb8f602c2fcc834b.tar.xz |
Documentation: user: watchdog: note new wd -x option
wd command documentation is generated automatically and will list the
new -x option. It's still a good idea to reference this in the
watchdog user doc as well. Do so.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20220124151827.3313412-6-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation/user/watchdog.rst')
-rw-r--r-- | Documentation/user/watchdog.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/user/watchdog.rst b/Documentation/user/watchdog.rst index ff400317a0..0220965598 100644 --- a/Documentation/user/watchdog.rst +++ b/Documentation/user/watchdog.rst @@ -10,6 +10,15 @@ the bootloader. For these scenarios barebox provides the watchdog framework with the following functionality and at least ``CONFIG_WATCHDOG`` should be enabled. +Disabling for development +~~~~~~~~~~~~~~~~~~~~~~~~~ + +The shorthand command ``wd -x`` will disable all watchdogs. +If hardware (or driver) doesn't support turning off the watchdog, +an autpoller will be registered to periodically feed watchdogs. +This should only be needed for development. +See :ref:`boot-watchdog-timeout` for how to use the watchdog in the field. + Polling ~~~~~~~ @@ -98,6 +107,8 @@ device tree or via the ``priority`` device parameter. Normally, watchdogs that have a wider effect should be given the higher priority (e.g. PMIC watchdog resetting the board vs. SoC's watchdog resetting only itself). +.. _boot-watchdog-timeout: + Boot Watchdog Timeout ~~~~~~~~~~~~~~~~~~~~~ |