HWP:Cache stop clocks complete fix

CQ:SW455762
Change-Id: Ia41ad689ebe7d1468855e8a9240a6701c372c435
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/71955
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: Prem Shanker Jha <premjha2@in.ibm.com>
Reviewed-by: YUE DU <daviddu@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/71963
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>

src/import/chips/p9/procedures/hwp/cache/p9_hcd_cache_stopclocks.C

@@ -110,6 +110,15 @@ p9_hcd_cache_stopclocks(
         return fapi2::current_err;
     }
 
+    //Check if EQ is powered off; if so, return
+    FAPI_TRY(fapi2::getScom(i_target, EQ_PPM_PFSNS, l_data64),
+             "Error reading data from EQ_PPM_PFSNS");
+
+    if(l_data64.getBit<EQ_PPM_PFSNS_VDD_PFETS_DISABLED_SENSE>())
+    {
+        return fapi2::current_err;
+    }
+
     if(l_is_mpipl)
     {
         // PB_PURGE related SCOMs should be added to the beginning of