mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-17 10:31:31 +00:00
7e7d0be726
When V3P3A_EC is higher than V3P3A_DSW + 0.07V, system 3.3V rail is powered by V3P3A_EC. V3P3A_EC LDO will shut down when PU27 triggers OTP. This patch increases VR3 voltage by 3%, which gives us 3.399. This is more than the maximum voltage PU27 can provide, thus, V3P3A_DSW will win the voltage race (against V3P3A_EC). Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> BUG=b:80114849 BRANCH=Fizz TEST=Boot Fizz Change-Id: Ieb6fbc4ad056a79dc1eef5eae7a91385575bac0b Reviewed-on: https://chromium-review.googlesource.com/1069594 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org> Tested-by: Daisuke Nojiri <dnojiri@chromium.org> (cherry picked from commit d674a0e3cb15ee7f542c16f5930f0ef4a5f000ea) Reviewed-on: https://chromium-review.googlesource.com/1076707 Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly