Only call lpc init procedure on slave procs in mnfg mode

Change-Id: Ifb4ecc7e86721359fc4e3d513c8abf160da4fca8
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/66449
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: MURULIDHAR NATARAJU <murulidhar@in.ibm.com>
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>
(cherry picked from commit c108818dacc005336883abd1bbe971607d84328d)
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/66503

src/sbefw/app/power/ipl_table.C

@@ -189,6 +189,7 @@ ReturnCode istepWithCoreConditional( voidfuncptr_t i_hwp);
 ReturnCode istepWithEqConditional( voidfuncptr_t i_hwp);
 ReturnCode istepNestFreq( voidfuncptr_t i_hwp);
 ReturnCode istepCacheInitf( voidfuncptr_t i_hwp );
+ReturnCode istepLpcInit( voidfuncptr_t i_hwp );
 
 //MPIPL Specific
 ReturnCode istepWithCoreSetBlock( voidfuncptr_t i_hwp );
@@ -301,7 +302,7 @@ static istepMap_t g_istep3PtrTbl[] =
              ISTEP_MAP( istepWithProc, p9_sbe_io_initf ),
              ISTEP_MAP( istepWithProc, p9_sbe_startclock_chiplets ),
              ISTEP_MAP( istepWithProc, p9_sbe_scominit ),
-             ISTEP_MAP( istepWithProc, p9_sbe_lpc_init ),
+             ISTEP_MAP( istepLpcInit, p9_sbe_lpc_init ),
              ISTEP_MAP( istepWithProc, p9_sbe_fabricinit ),
              ISTEP_MAP( istepCheckSbeMaster, NULL ),
              ISTEP_MAP( istepWithProc, p9_sbe_mcs_setup ),
@@ -640,6 +641,21 @@ ReturnCode istepLoadBootLoader( voidfuncptr_t i_hwp)
 
 //----------------------------------------------------------------------------
 
+ReturnCode istepLpcInit( voidfuncptr_t i_hwp)
+{
+    ReturnCode rc = FAPI2_RC_SUCCESS;
+    // Only call lpc init if we are on master proc or
+    // are in mnfg mode.
+    if( !(SbeRegAccess::theSbeRegAccess().isSbeSlave()) ||
+        (SbeRegAccess::theSbeRegAccess().isMnfgMode()))
+    {
+        rc = istepWithProc(i_hwp);
+    }
+    return rc;
+}
+
+//----------------------------------------------------------------------------
+
 ReturnCode istepStartInstruction( voidfuncptr_t i_hwp)
 {
     ReturnCode rc = FAPI2_RC_SUCCESS;

src/sbefw/core/sberegaccess.H

@@ -145,6 +145,17 @@ class SbeRegAccess
             return iv_istepMode;
         }
 
+        /**
+         * @brief Check if we are in mnfg mode
+         *
+         * @return true if in mnfg mode, false otherwise
+         *
+         */
+        inline bool isMnfgMode() const
+        {
+            return iv_mnfgMode;
+        }
+
         /**
          * @brief Check if SBE should directly go to runtime state
          *
@@ -296,7 +307,8 @@ class SbeRegAccess
                 uint64_t iv_mbx3DontCare1 : 5;
                 uint64_t iv_disableScomFiltering : 1;
                 uint64_t iv_disableInvalidScomAddrCheck : 1;
-                uint64_t iv_mbx3DontCare2 : 19;
+                uint64_t iv_mnfgMode : 1;
+                uint64_t iv_mbx3DontCare2 : 18;
                 uint64_t iv_mbx3Unused : 32;
             };
             uint64_t iv_mbx3;