ish/ish5: add console in use timeout mechanism in low power managment
on ISH, uart interrupt can only wakeup ISH from low power state via
CTS pin, but most ISH platforms only have Rx and Tx pins, no CTS pin
exposed, so, we need block ISH enter low power state for a while when
console is in use.
we have two default timeout values for this mechanism:
1: after ISH boot, have 15 seconds window can input console commands
2: refresh 60 seconds timeout for console use after each console input
BUG=b:129246461
BRANCH=none
TEST=verified on arcada platform
Change-Id: Ic3bb33a7984e1bf55654403c76287617c8828daa
Signed-off-by: Hu, Hebo <hebo.hu@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/1574375
Commit-Ready: Jack Rosenthal <jrosenth@chromium.org>
Tested-by: Hebo Hu <hebo.hu@intel.corp-partner.google.com>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Mathew King <mathewk@chromium.org>
Reviewed-by: Hebo Hu <hebo.hu@intel.corp-partner.google.com>
3 files changed
