diff options
| author | Daisuke Nojiri <dnojiri@chromium.org> | 2017-11-30 17:58:38 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-12-05 18:00:38 -0800 |
| commit | 23149261dc4a9429a1c98aa829e02d4a3ec5103a (patch) | |
| tree | e86a656759c50faba656be820118ef25fb7a3010 /chip/mec1322/system.c | |
| parent | 0a5e908467b5f5169a7197bbe7b327e06432d4cf (diff) | |
| download | chrome-ec-23149261dc4a9429a1c98aa829e02d4a3ec5103a.tar.gz | |
system: Allow hibernate to clear AP_OFF flag
After firmware update, cr50 toggles the EC's reset line, expecting
the system will boot. This isn't the case for Chromebox because it
sets AP_OFF flag on a clean shutdown (to restore the previous power
state after power loss & restore).
This patch adds EC_REBOOT_HIBERNATE_CLEAR_AP_OFF to EC reboot
command. It makes EC first clear AP_OFF then hibernate.
BUG=b:69721737
BRANCH=none
TEST=Verify Fizz reboot after cr50 update.
Change-Id: If3207d7284f244ca1adf0d516ef744dbc739a9c1
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/802632
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'chip/mec1322/system.c')
| -rw-r--r-- | chip/mec1322/system.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/chip/mec1322/system.c b/chip/mec1322/system.c index 57e1f8816a..449d234343 100644 --- a/chip/mec1322/system.c +++ b/chip/mec1322/system.c @@ -98,6 +98,11 @@ void chip_save_reset_flags(int flags) MEC1322_VBAT_RAM(HIBDATA_INDEX_SAVED_RESET_FLAGS) = flags; } +uint32_t chip_read_reset_flags(void) +{ + return MEC1322_VBAT_RAM(HIBDATA_INDEX_SAVED_RESET_FLAGS); +} + __attribute__((noreturn)) void _system_reset(int flags, int wake_from_hibernate) { |