diff options
| -rw-r--r-- | baseboard/grunt/baseboard.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/baseboard/grunt/baseboard.c b/baseboard/grunt/baseboard.c index 1c0d0d55fc..579b7758c5 100644 --- a/baseboard/grunt/baseboard.c +++ b/baseboard/grunt/baseboard.c @@ -586,3 +586,16 @@ uint32_t board_override_feature_flags1(uint32_t flags1) { return flags1; } + +void board_hibernate(void) +{ + /* + * Some versions of some boards keep the port 0 PPC powered on while + * the EC hibernates (so Closed Case Debugging keeps working). + * Make sure the source FET is off and turn on the sink FET, so that + * plugging in AC will wake the EC. This matches the dead-battery + * behavior of the powered off PPC. + */ + ppc_vbus_source_enable(0, 0); + ppc_vbus_sink_enable(0, 1); +} |