STOP: DD2 set PPM_WRITE_DISABLE along with wakeup_notify_select

Change-Id: I18a1db0358a5cd591129eb3acf6323e7d56bb677
Original-Change-Id: I037e2ca5d5b479a051b588aac2e702a72c8fae76
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/34678
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Michael S. Floyd <mfloyd@us.ibm.com>
Reviewed-by: AMIT KUMAR <akumar3@us.ibm.com>
Reviewed-by: ASHISH A. MORE <ashish.more@in.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_entry.c

@@ -1265,8 +1265,12 @@ p9_cme_stop_entry()
             }
         }
 
-        PK_TRACE("Switch Core%d PPM wakeup to STOP-GPE via CPMMR[13]", core);
-        CME_PUTSCOM(CPPM_CPMMR_OR, core, BIT64(13));
+#if NIMBUS_DD_LEVEL != 1
+
+        PK_TRACE("Drop PPM_WRITE_DISABLE via CPMMR[0]");
+        CME_PUTSCOM(CPPM_CPMMR_CLR, core, BIT64(0));
+
+#endif
 
 #if DEBUG_RUNTIME_STATE_CHECK
 
@@ -1295,6 +1299,9 @@ p9_cme_stop_entry()
 
 #endif
 
+        PKTRACE("Switch Core%d PPM wakeup to STOP-GPE via CPMMR[13]", core);
+        CME_PUTSCOM(CPPM_CPMMR_OR, core, BIT64(13));
+
         PK_TRACE_INF("SE5.B: Handed off to SGPE");
 
     }