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b7a604728a
There's a new OTP change for the BD99955 and therefore the following changes needed to be made. - Change VFASTCHG_SET1 to 8.704V before CHG_EN is set to 1. - Change VSYS_REG to 6.144V when starting Fast Charging. - Change VSYS_REG back to 8.906V when Fast Charge is finished. - Wait for 50ms to set CHG_EN to off (0) after Fast Charging has ended. BUG=chrome-os-partner:55220 BUG=chrome-os-partner:55238 BRANCH=None TEST=Flash kevin, plug discharged battery in. Plug AC in. `bd99955 r 0x11 1' and verify that VSYSREG is set to 0x1800 (6144mV). TEST=`bd99955 r 0x1a 1' and verify that VFASTCHARGE is set to 0x2200 (8704mV). TEST=Remove battery. `bd99955 r 0x11 1' and verify that VSYSREG is set to 0x2300 (8960 mV). TEST=Plug in battery and let charge to full. Verify that VSYSREG is set to 0x2300 (8960 mV). Change-Id: I5e5ca2cdcd4ead383416901c904df1e6fe5a9e28 Signed-off-by: Aseda Aboagye <aaboagye@google.com> Reviewed-on: https://chromium-review.googlesource.com/360421 Commit-Ready: Aseda Aboagye <aaboagye@chromium.org> Tested-by: Aseda Aboagye <aaboagye@chromium.org> Reviewed-by: Mary Ruthven <mruthven@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