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path: root/src/mainboard/google/peppy/thermal.h
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2013-12-21haswell boards: Use PECI temp sensor id 0Duncan Laurie
The EC temperature sensors were renumbered and now PECI is at index 0. 1) boot on falco 2) check /sys/class/thermal/thermal_zone0/temp 3) check 'temps' on ec console Change-Id: Idde1457c42c80850b5b8ac22781060ed9b224d13 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/61896 Reviewed-on: http://review.coreboot.org/4367 Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Tested-by: build bot (Jenkins)
2013-12-07peppy: Enable power limiting for thermal controlDuncan Laurie
Limit power to 12W at 73C and remove limit at 68C. To have the CPU consume maximum power it is necessary to stress both the CPU and the GPU. Bastion (chrome.supergiantgames.com) and/or webglsamples.googlecode.com can be useful for this. Testing this properly requires a script to report the running average power readings. The watch_power.sh script is attached to this issue in the partner tracker. 1) Run watch_power.sh continuously: localhost ~ # watch -n 0 bash -e /tmp/watch_power.sh 2) Start Bastion (or other stress apps). The power draw should be close to 15W if under enough load. 3) Watch until temperature climbs above 73C and is caught by the thermal zone 10 second poll, this can be sped up by blocking or removing the fan. 4) The ACPI thermal zone states should change to reflect that active[2] is now enabled and power consumption should drop to 12W. 5) Stop the stress apps and wait until the CPU cools off again, enable the fan again if it was removed. 6) The ACPI thermal zone state should switch back to active[3]. Change-Id: Ie6714a8543d4f06edf8513086fc9c968273bdb23 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/60545 Reviewed-on: http://review.coreboot.org/4335 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2013-11-25peppy: Initial mainboard commitShawn Nematbakhsh
Taken directly from slippy with only constant + string changes. (Peppy port of I4172460d3b075bfd5bb22013a6225cf0e8f95b9c by dlaurie) The following changes are required in a subsequent commit: - Add Elpida SPD data. - Update GPIO map. - Remove iSSD power sequencing. - Update USB port map. Change-Id: I01dfb841f0e9186cf8a0a23f72e7be986a83be42 Reviewed-on: https://gerrit.chromium.org/gerrit/56513 Tested-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-by: Dave Parker <dparker@chromium.org> Commit-Queue: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: http://review.coreboot.org/4200 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>