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The nvdc voltage has a kind of deep, so that rarely observed NVDC down at this point because of back-boosting. Our sequence to enable charger bit and setting vsysreg is correct but rohm introduce charger may need some more time to be stable when between chg_en and vsys_set to start charge BUG=chrome-os-partner:60380 BRANCH=gru TEST=Manual on kevin, trigger battery disconnect, re-attach AC, verify system boots cleanly. and see voltage probing on c54@60380 Change-Id: Ic05091379322ffaac16fe827a47345c76c85f3e5 Signed-off-by: Wonjoon Lee <woojoo.lee@samsung.com> Reviewed-on: https://chromium-review.googlesource.com/434252 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Shawn N <shawnn@chromium.org>
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