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Follow-up will extend the poweroff driver to support system reset source.
Set the stage by renaming the driver to power (as it does reset as well)
and make it probe from device tree, so it can point at the system reset
source syscon via phandle.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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On Linux, /proc/self/exe is a symlink to the originally exec(2)d
executable. We can exec that with the original argv to simulate
a reset. This is useful for shorter development cycles on sandbox
and in future, could be used to test barebox behavior around resets
(e.g. reset reason can be passed through via libc environment).
We leave the original hanging reset in place though, because:
- Many boards have multiple reset providers and incoming patches
will allow users to select a specific one. Having this on
sandbox as well makes testing easier.
- /proc/self/exe is Linux-specific and wouldn't work when being
run on e.g. BSDs or macOS
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Typing reset in sandbox results in hang() while the terminal is not
cooked and ^C is ineffective. Only way to terminate barebox then is
via kill. Reinstate cooked mode on reset, so ^C termination is
possible.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The 'poweroff' command is more appropriate for exit
barebox than 'reset'.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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