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port80 activity usually comes in bursts during AP boot and then goes quiet. For power savings, turn off the port80 interrupt and timer after no activity is seen for 30 seconds. BUG=chrome-os-partner:50175 TEST=Boot chell, verify port80 prints are seen. Verify timer + interrupts are disabled ~30 seconds later. Power down, power up, and verify port80 prints are seen once again. BRANCH=glados Change-Id: Iea091d73aa0c6e9cfb36240d68e31a20425cea45 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/327256 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Icarus W Sparry <icarus.w.sparry@intel.com> Reviewed-by: Duncan Laurie <dlaurie@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