AVSbus Re-sync Bus Error Recovery

Change-Id: I226c5a7e7b8b5db4a3dc60608494c8cf9cbbb212
RTC: 180106
CQ: SW396400
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/49113
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>
Reviewed-by: Martha Broyles <mbroyles@us.ibm.com>
Reviewed-by: Andres A. Lugo-Reyes <aalugore@us.ibm.com>
Reviewed-by: Christopher J. Cain <cjcain@us.ibm.com>

1 files changed, 11 insertions, 5 deletions

diff --git a/src/occ_405/amec/amec_sensors_power.c b/src/occ_405/amec/amec_sensors_power.c
index 55429b1..30a8e3b 100755
--- a/src/occ_405/amec/amec_sensors_power.c
+++ b/src/occ_405/amec/amec_sensors_power.c
@@ -575,17 +575,23 @@ void update_avsbus_power_sensors(const avsbus_type_e i_type)
 // Name: amec_update_avsbus_sensors
 //
 // Description: Read AVS Bus data and update sensors (called every tick)
-//   The very first tick kicks off a read of the currents for both buses (Vdd/Vdn).
-//   The next tick will process the currents and then start a read of the voltages.
-//   The next tick will process the voltages and then start a read of the currents.
-//   (readings for each bus will essentially be updated every 2 ticks)
+//   Tick 0: start read current (for Vdd/Vdn)
+//   Tick 1: process current, start voltage read (Vdd/Vdn)
+//   Tick 2: process voltage, start Vdd temp read
+//   Tick 3: process Vdd temp, start current read (Vdd/Vdn)
+//   Tick 4: process current, start voltage read (Vdd/Vdn)
+//   Tick 5: process voltage, start status read (Vdd/Vdn)
+//   Tick 6: process status, start current read (Vdd/Vdn)
+//   (back to tick 1)
+//
+//   Vdd/Vdn current and voltage are read every 3 ticks
+//   Vdd temperature and status is read every 6 ticks
 //
 // Thread: RealTime Loop
 //
 // End Function Specification
 void amec_update_avsbus_sensors(void)
 {
-
     static enum {
         AVSBUS_STATE_DISABLED           = 0,
         AVSBUS_STATE_INITIATE_READ      = 1,