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Trigger the power press for shutdown. Also, avoid powering up the AP by checking if we are not in G3, before triggering the power press. BUG=b:66698593 TEST= > apshutdown [7045.198370 chipset_force_shutdown()] [7045.198870 PB PCH force press] [7045.199368 PB PCH pwrbtn=LOW] > LPC RESET# asserted[7049.218062 power state 3 = S0, in 0x000c] [7049.218718 Pass through VGATE: 0] [7049.219281 power state 7 = S0->S3, in 0x000c] [7049.220647 chipset -> S3] [7049.221108 power state 2 = S3, in 0x000c] [7049.221763 power state 8 = S3->S5, in 0x000c] [7049.222522 USB charge p0 m0] [7049.223217 chipset -> S5] [7049.223716 power state 1 = S5, in 0x000c] [7049.224334 PB PCH force release] [7049.224840 PB PCH pwrbtn=HIGH] [7049.232875 SW 0x01] [7049.240557 TCPC p1 Low Power Mode] [7049.252249 TCPC p1 Low Power Mode] [7049.254363 TCPC p0 Low Power Mode] [7049.266006 TCPC p0 Low Power Mode] [7059.225553 power state 9 = S5->G3, in 0x000c] [7059.226188 chipset_force_shutdown()] [7059.226717 PB PCH force press] [7059.233871 PB PCH pwrbtn=LOW] [7059.234381 power state 0 = G3, in 0x000c] [7059.250255 power state 0 = G3, in 0x000f] [7059.256533 SW 0x05] Change-Id: Ibc27c90f806deed6a2ca7035869c4e10ca7fbf0b Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com> Reviewed-on: https://chromium-review.googlesource.com/683956 Reviewed-by: Aaron Durbin <adurbin@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