Files
OpenCellular/include
Philip Chen 982f2bbfab chip/stm32/clock: Optionally use LSE as RTCCLK
The default RTCCLK comes from LSI, which can vary from 30kHz to 60kHz.
To use stm32 RTC for applications requiring accurate timing, let's setup
LSE (a more accurate clock source) as RTCCLK.

Also fix a typo in register.h as 'BCDR' should be 'BDCR' globally.

BUG=b:63908519
BRANCH=none
TEST=boot scarlet rev1 and wait for an hour,
confirm rtc time == kernel system time.

Change-Id: If4728bdd3b6384316e5337004a49c172eaec869d
Signed-off-by: Philip Chen <philipchen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/679601
Commit-Ready: Philip Chen <philipchen@chromium.org>
Tested-by: Philip Chen <philipchen@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-10-11 13:19:33 -07:00
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