Shawn Nematbakhsh 90ef8b7006 lm4: stm32: Store panic data in backup registers on hard reset
On hard reset / hibernate, RAM will be erased and panic data will
normally be lost. When software panic data saving is enabled, try to
save this data just before hard reset and restore it when we come back
up.

BUG=chrome-os-partner:37380
TEST=Manual on Samus with WP + SW sync enabled. Boot AP, then run "crash
divzero" on console. After hard reset, verify that "panicinfo" dumps
data and shows divzero exception code.
BRANCH=Samus

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I9516dd4b6db12ef35e512cc4710f9b97d7e663cb
Reviewed-on: https://chromium-review.googlesource.com/255912
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2015-03-14 03:22:37 +00:00
2014-03-31 22:45:09 +00:00
2012-05-11 09:11:52 -07:00
2015-02-25 08:44:58 +00:00
2014-04-02 19:58:53 +00:00
2014-05-15 05:20:14 +00:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit
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