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3dffafac68
Fix bug in RTC module for stm32f0 in which it doesn't handle the 24 hour rollover appropriately and can cause a watchdog reset if in deep sleep during rollover. BUG=chrome-os-partner:36920 BRANCH=samus TEST=add line to rtc_init() STM32_RTC_TR = 0x00235952 This initializes RTC clock to 8 seconds before rollover. Using samus make sure unit is allowed to go to deep sleep (S3/S5 and not charging) and see that without this CL we watchdog most of the time, and with this CL we don't watchdog ever. Change-Id: I3f4b4b1ab7b2be1d4e344477d5eaaa0dc916773a Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/251852 Reviewed-by: Alexandru Stan <amstan@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit