Update IPL flow for clocks and memory(Hostboot)

    Update hostboot code to match version 1.37
    of the IPL flow document.
     - added proc_cen_ref_clk_enable support
     - added mss_dimm_power_test support
     - deferred step 12 updates

Change-Id: Ief2d55fa9864ac64b847da21f14b897006965d57
RTC:80595
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/5817
Tested-by: Jenkins Server
Reviewed-by: Brian H. Horton <brianh@linux.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

15 files changed, 847 insertions, 65 deletions

diff --git a/src/include/usr/hwpf/istepreasoncodes.H b/src/include/usr/hwpf/istepreasoncodes.H
index 01dab7c93..e84739b45 100644
--- a/src/include/usr/hwpf/istepreasoncodes.H
+++ b/src/include/usr/hwpf/istepreasoncodes.H
@@ -118,6 +118,8 @@ enum istepModuleId
     ISTEP_MEM_PLL_INITF                                 = 0x46,
     ISTEP_PROC_GETECID                                  = 0x47,
     ISTEP_INITSVC_MOD_ID                                = 0x48,
+    ISTEP_MSS_DIMM_POWER_TEST                           = 0x49,
+    ISTEP_PROC_CEN_REF_CLK_ENABLE                       = 0x4A,
 };
 
 /**
diff --git a/src/include/usr/isteps/istep06list.H b/src/include/usr/isteps/istep06list.H
index ec2173ada..79bf0cc2f 100644
--- a/src/include/usr/isteps/istep06list.H
+++ b/src/include/usr/isteps/istep06list.H
@@ -27,7 +27,6 @@
  * @file    istep6list.H
  *
  *  list of functions called by HWAS (ISTEP 6) - "named isteps"
- *  IPL FLow Doc        v1.28 (12/03/12)
  *
  *  Please see the note in initsvcstructs.H for description of
  *      the ISTEPNAME macro.
@@ -49,7 +48,7 @@ namespace   INITSERVICE
  * @note    IStep definition for Hostboot - Slave SBE
  *
  *  IStep 06    Slave SBE
- *  IPL FLow Doc        v1.28 (12/03/12)
+ *  IPL FLow Doc        v1.37 (08/13/13)
  *
  *  06.1    host_setup
  *        : Setup host environment (non-executable istep)
@@ -59,7 +58,7 @@ namespace   INITSERVICE
  *        : Setup the FSI links to slave chips
  *  06.4    host_set_ipl_parms
  *        : Build ipl parameters
- *  06.5    host_discover_targets 
+ *  06.5    host_discover_targets
  *      :   Builds targeting
  *  06.6    host_gard
  *      :   Do Gard
@@ -67,11 +66,13 @@ namespace   INITSERVICE
  *      :   Clear deconfigured states
  *  06.8    proc_revert_sbe_mcs_setup
  *      :   Clean up MCS extent regs
- *  06.9    host_slave_sbe_config
- *  06.10   host_sbe_start
- *  06.11   proc_check_slave_sbe_seeprom_complete
+ *  06.9    proc_cen_ref_clk_enable
+ *      :   Setup centaur ref clocks
+ *  06.10    host_slave_sbe_config
+ *  06.11   host_sbe_start
+ *  06.12   proc_check_slave_sbe_seeprom_complete
  *        : Check Slave SBE Complete
- *  06.12   proc_xmit_sbe
+ *  06.13   proc_xmit_sbe
  *        : vSBE Init of Slave Chips
  *
  */
@@ -168,7 +169,17 @@ const   TaskInfo    g_istep06[]  =   {
                 }
         },
         {
-                ISTEPNAME(06,09,"host_slave_sbe_config"),
+                ISTEPNAME(06,09,"proc_cen_ref_clk_enable"),
+                SLAVE_SBE::call_proc_cen_ref_clk_enable,
+                {
+                        START_FN,
+                        EXT_IMAGE,
+                        NORMAL_IPL_OP,
+                        false,
+                }
+        },
+        {
+                ISTEPNAME(06,10,"host_slave_sbe_config"),
                 SLAVE_SBE::call_host_slave_sbe_config,
                 {
                         START_FN,
@@ -179,7 +190,7 @@ const   TaskInfo    g_istep06[]  =   {
         },
 
         {
-                ISTEPNAME(06,10,"host_sbe_start"),
+                ISTEPNAME(06,11,"host_sbe_start"),
                 SLAVE_SBE::call_host_sbe_start,
                 {
                         START_FN,
@@ -190,7 +201,7 @@ const   TaskInfo    g_istep06[]  =   {
         },
 
         {
-                ISTEPNAME(06,11,"proc_check_slave_sbe_seeprom_complete"),
+                ISTEPNAME(06,12,"proc_check_slave_sbe_seeprom_complete"),
                 SLAVE_SBE::call_proc_check_slave_sbe_seeprom_complete,
                 {
                         START_FN,
@@ -200,7 +211,7 @@ const   TaskInfo    g_istep06[]  =   {
                 }
         },
         {
-                ISTEPNAME(06,12,"proc_xmit_sbe"),
+                ISTEPNAME(06,13,"proc_xmit_sbe"),
                 SLAVE_SBE::call_proc_xmit_sbe,
                 {
                         START_FN,
diff --git a/src/include/usr/isteps/istep13list.H b/src/include/usr/isteps/istep13list.H
index 655975ad1..a4c09d0e8 100644
--- a/src/include/usr/isteps/istep13list.H
+++ b/src/include/usr/isteps/istep13list.H
@@ -27,7 +27,7 @@
  * @file    istep13list.H
  *
  *  IStep 13    Step 13 DRAM Training
- *  IPL FLow Doc        v1.28 (12/03/12)
+ *  IPL FLow Doc        v1.37 (08/13/13)
  *
  *  13.1      host_disable_vddr
  *      : Disable VDDR on CanContinue loops
@@ -51,6 +51,7 @@
  *      : Advanced dram training
  *  13.11     mss_draminit_mc
  *      : Hand off control to MC
+ *  13.12 mss_dimm_power_test
  *
  *  *****************************************************************
  *  THIS FILE WAS GENERATED ON 2012-02-27:2142
@@ -192,7 +193,16 @@ const   TaskInfo    g_istep13[]  =   {
                         true,
                 }
         },
-
+        {
+                ISTEPNAME(13,12,"mss_dimm_power_test"),
+                DRAM_TRAINING::call_mss_dimm_power_test,
+                {
+                        START_FN,
+                        EXT_IMAGE,
+                        NORMAL_IPL_OP,
+                        true,
+                }
+        },
 
         //  END OF LIST!
 };
diff --git a/src/usr/hwpf/hwp/dram_training/dram_training.C b/src/usr/hwpf/hwp/dram_training/dram_training.C
index c0f9f43f0..3d2e11639 100644
--- a/src/usr/hwpf/hwp/dram_training/dram_training.C
+++ b/src/usr/hwpf/hwp/dram_training/dram_training.C
@@ -65,18 +65,16 @@ const uint8_t VPO_NUM_OF_MEMBUF_TO_RUN = UNLIMITED_RUN;
 //  --  prototype   includes    --
 #include    "dram_training.H"
 
-//  Un-comment these files as they become available:
-// #include    "host_disable_vddr/host_disable_vddr.H"
 #include    "mem_pll_setup/cen_mem_pll_initf.H"
 #include    "mem_pll_setup/cen_mem_pll_setup.H"
 #include    "mem_startclocks/cen_mem_startclocks.H"
-// #include    "host_enable_vddr/host_enable_vddr.H"
 #include    "mss_scominit/mss_scominit.H"
 #include    "mss_ddr_phy_reset/mss_ddr_phy_reset.H"
 #include    "mss_draminit/mss_draminit.H"
 #include    "mss_draminit_training/mss_draminit_training.H"
 #include    "mss_draminit_trainadv/mss_draminit_training_advanced.H"
 #include    "mss_draminit_mc/mss_draminit_mc.H"
+#include    "mss_dimm_power_test/mss_dimm_power_test.H"
 
 namespace   DRAM_TRAINING
 {
@@ -936,6 +934,99 @@ void*    call_mss_draminit_mc( void *io_pArgs )
 
     return l_stepError.getErrorHandle();
 }
+//
+//  Wrapper function to call mss_dimm_power_test
+//
+void*    call_mss_dimm_power_test( void *io_pArgs )
+{
+    TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+            "call_mss_dimm_power_test entry" );
+
+    errlHndl_t l_err = NULL;
+
+    // get a list of mba targets
+    IStepError l_stepError;
+
+    TARGETING::TargetHandleList l_mbaTargetList;
+    TARGETING::TargetHandleList::const_iterator pRangeLimitItr;
+    TARGETING::TargetHandleList::const_iterator pTargetItr;
+
+    // Get all MBA targets
+    getAllChiplets(l_mbaTargetList, TYPE_MBA, true);
+
+    // Limit the number of MBAs to run in VPO environment to save time.
+    uint8_t l_mbaLimit = l_mbaTargetList.size();
+    if (TARGETING::is_vpo() && (VPO_NUM_OF_MBAS_TO_RUN < l_mbaLimit))
+    {
+        // limit the range to VPO_NUM_OF_MBAS_TO_RUN
+        pRangeLimitItr = l_mbaTargetList.begin() + VPO_NUM_OF_MBAS_TO_RUN;
+    }
+    else
+    {
+        // process all targets
+        pRangeLimitItr = l_mbaTargetList.end();
+
+    }
+    // process each target till we reach the limit set above
+    for (  TARGETING::TargetHandleList::const_iterator pTargetItr
+           = l_mbaTargetList.begin();
+           pTargetItr != pRangeLimitItr; pTargetItr++)
+    {
+        //  make a local copy of the target for ease of use
+        const TARGETING::Target*  l_mba_target = *pTargetItr;
+
+        // Dump current run on target
+        TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+                "Running mss_dimm_power_test HWP on "
+                "target HUID %.8X", TARGETING::get_huid(l_mba_target));
+
+        // Cast to a FAPI type of target.
+        const fapi::Target l_fapi_mba_target( TARGET_TYPE_MBA_CHIPLET,
+                        (const_cast<TARGETING::Target*>(l_mba_target)) );
+
+        //  call the HWP with each fapi::Target
+        FAPI_INVOKE_HWP(l_err, mss_dimm_power_test, l_fapi_mba_target);
+
+        if (l_err)
+        {
+            TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+                    "ERROR 0x%.8X: mss_dimm_power_test HWP returns error",
+                    l_err->reasonCode());
+
+            // capture the target data in the elog
+            ErrlUserDetailsTarget(l_mba_target).addToLog( l_err );
+
+            /*@
+             * @errortype
+             * @reasoncode  ISTEP_DRAM_TRAINING_FAILED
+             * @severity    ERRORLOG::ERRL_SEV_UNRECOVERABLE
+             * @moduleid    ISTEP_MSS_DIMM_POWER_TEST
+             * @userdata1   bytes 0-1: plid identifying first error
+             *              bytes 2-3: reason code of first error
+             * @userdata2   bytes 0-1: total number of elogs included
+             *              bytes 2-3: N/A
+             * @devdesc     call to mss_dimm_power_test has failed
+             */
+            l_stepError.addErrorDetails(ISTEP_DRAM_TRAINING_FAILED,
+                             ISTEP_MSS_DIMM_POWER_TEST,
+                             l_err );
+
+            errlCommit( l_err, HWPF_COMP_ID );
+
+        }
+        else
+        {
+            TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+                    "SUCCESS :  call_mss_dimm_power_test HWP( )" );
+        }
+    } // end l_mbaNum loop
+
+    TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+            "call_mss_dimm_power_test exit" );
+
+    return l_stepError.getErrorHandle();
+}
+
 
 
 };   // end namespace
diff --git a/src/usr/hwpf/hwp/dram_training/dram_training.H b/src/usr/hwpf/hwp/dram_training/dram_training.H
index 6092fb99d..40ca07990 100644
--- a/src/usr/hwpf/hwp/dram_training/dram_training.H
+++ b/src/usr/hwpf/hwp/dram_training/dram_training.H
@@ -1,26 +1,25 @@
-/*  IBM_PROLOG_BEGIN_TAG
- *  This is an automatically generated prolog.
- *
- *  $Source: src/usr/hwpf/hwp/dram_training/dram_training.H $
- *
- *  IBM CONFIDENTIAL
- *
- *  COPYRIGHT International Business Machines Corp. 2012
- *
- *  p1
- *
- *  Object Code Only (OCO) source materials
- *  Licensed Internal Code Source Materials
- *  IBM HostBoot Licensed Internal Code
- *
- *  The source code for this program is not published or other-
- *  wise divested of its trade secrets, irrespective of what has
- *  been deposited with the U.S. Copyright Office.
- *
- *  Origin: 30
- *
- *  IBM_PROLOG_END_TAG
- */
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/dram_training/dram_training.H $              */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2012,2013              */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
 #ifndef  __DRAM_TRAINING_DRAM_TRAINING_H
 #define  __DRAM_TRAINING_DRAM_TRAINING_H
 
@@ -269,6 +268,16 @@ void*    call_mss_draminit_trainadv( void * io_pArgs );
  *
  */
 void*    call_mss_draminit_mc( void * io_pArgs );
+/**
+ *  @brief   mss_dimm_power_test
+ *
+ *
+ *  param[in,out] io_pArgs  -   (normally) a pointer to a TaskArgs struct,
+ *                              or NULL.
+ *  return  any errlogs to istep
+ *
+ */
+void*    call_mss_dimm_power_test( void * io_pArgs );
 
 
 };   // end namespace
diff --git a/src/usr/hwpf/hwp/dram_training/makefile b/src/usr/hwpf/hwp/dram_training/makefile
index 3fe9152b0..527265eec 100644
--- a/src/usr/hwpf/hwp/dram_training/makefile
+++ b/src/usr/hwpf/hwp/dram_training/makefile
@@ -49,6 +49,7 @@ EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mss_scominit
 EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mem_pll_setup
 EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mss_draminit_trainadv
 EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/build_winkle_images/p8_slw_build
+EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test
 
 ##  NOTE: add new object files when you add a new HWP
 OBJS =  dram_training.o \
@@ -68,10 +69,12 @@ OBJS =  dram_training.o \
         mss_mcbist.o \
         mss_mcbist_common.o\
         hbVddrMsg.o \
-        mss_mcbist_address.o
+        mss_mcbist_address.o \
+        mss_dimm_power_test.o
 
 ##  NOTE: add a new directory onto the vpaths when you add a new HWP
 ##@ VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/???
+VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test
 VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mss_draminit_training
 VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mss_draminit_mc
 VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/dram_training/mss_draminit
diff --git a/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.C b/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.C
new file mode 100644
index 000000000..7343f2cca
--- /dev/null
+++ b/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.C
@@ -0,0 +1,82 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.C $ */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2013                   */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// $Id: mss_dimm_power_test.C,v 1.1 2013/04/18 14:14:10 joabhend Exp $
+// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/centaur/working/procedures/ipl/fapi/mss_dimm_power_test.C,v $
+//------------------------------------------------------------------------------
+// *! (C) Copyright International Business Machines Corp. 2011
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+//------------------------------------------------------------------------------
+// *! TITLE       : mss_dimm_power_test
+// *! DESCRIPTION : see additional comments below
+// *! OWNER NAME  : Joab Henderson    Email: joabhend@us.ibm.com
+// *! BACKUP NAME : Michael Pardeik   Email: pardeik@us.ibm.com
+// *! ADDITIONAL COMMENTS :
+//
+// DESCRIPTION:
+// The purpose of this procedure is to run an insitu power test on ISDIMMs to determine max power draw
+//
+// TODO:
+//
+//------------------------------------------------------------------------------
+// Don't forget to create CVS comments when you check in your changes!
+//------------------------------------------------------------------------------
+// CHANGE HISTORY:
+//------------------------------------------------------------------------------
+// Version:|  Author: |  Date:  | Comment:
+//---------|----------|---------|-----------------------------------------------
+//   1.1   | joabhend |04-APR-13| Shell code - Only returns success
+
+
+
+//----------------------------------------------------------------------
+//  Includes
+//----------------------------------------------------------------------
+#include <mss_dimm_power_test.H>
+#include <fapi.H>
+
+extern "C" {
+
+   using namespace fapi;
+
+
+   // Procedures in this file
+   fapi::ReturnCode mss_dimm_power_test(const fapi::Target & i_target);
+   
+   
+//******************************************************************************
+//
+//******************************************************************************
+   
+fapi::ReturnCode mss_dimm_power_test(const fapi::Target & i_target)
+{
+   // Target is centaur.mba
+    
+   fapi::ReturnCode l_rc = fapi::FAPI_RC_SUCCESS;
+   
+   return l_rc;
+}
+   
+
+} //end extern C
+
diff --git a/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.H b/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.H
new file mode 100644
index 000000000..e3501e534
--- /dev/null
+++ b/src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.H
@@ -0,0 +1,86 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/dram_training/mss_dimm_power_test/mss_dimm_power_test.H $ */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2013                   */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// $Id: mss_dimm_power_test.H,v 1.1 2013/04/18 14:14:50 joabhend Exp $
+// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/centaur/working/procedures/ipl/fapi/mss_dimm_power_test.H,v $
+//------------------------------------------------------------------------------
+// *! (C) Copyright International Business Machines Corp. 2011
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+//------------------------------------------------------------------------------
+// *! TITLE       : mss_throttle_to_power.H
+// *! DESCRIPTION : see additional comments below
+// *! OWNER NAME  : Joab Henderson    Email: joabhend@us.ibm.com
+// *! BACKUP NAME : Michael Pardeik   Email: pardeik@us.ibm.com
+// *! ADDITIONAL COMMENTS :
+//
+// Header file for mss_dimm_power_test.
+//
+//------------------------------------------------------------------------------
+// Don't forget to create CVS comments when you check in your changes!
+//------------------------------------------------------------------------------
+// CHANGE HISTORY:
+//------------------------------------------------------------------------------
+// Version:|  Author: |  Date:  | Comment:
+//---------|----------|---------|-----------------------------------------------
+//   1.1   | joabhend |04-APR-13| First Draft.
+
+
+
+#ifndef MSS_DIMM_POWER_TEST_H_
+#define MSS_DIMM_POWER_TEST_H_
+
+//----------------------------------------------------------------------
+//  Includes
+//----------------------------------------------------------------------
+#include <fapi.H>
+
+//----------------------------------------------------------------------
+//  Defines
+//----------------------------------------------------------------------
+
+//----------------------------------------------------------------------
+//  ENUMs
+//----------------------------------------------------------------------
+
+//----------------------------------------------------------------------
+//  Data Types
+//----------------------------------------------------------------------
+
+typedef fapi::ReturnCode (*mss_dimm_power_test_FP_t)(const fapi::Target & i_target);
+
+extern "C"
+{
+
+/**
+ * @brief mss_dimm_power_test procedure. Run power test on ISDIMMs to determine max power draw
+ *
+ * @param[in]  i_target  Reference to centaur.mba target
+ *
+ * @return ReturnCode
+ */
+
+    fapi::ReturnCode mss_dimm_power_test(const fapi::Target & i_target);
+
+} // extern "C"
+
+#endif // MSS_DIMM_POWER_TEST_H_
diff --git a/src/usr/hwpf/hwp/slave_sbe/makefile b/src/usr/hwpf/hwp/slave_sbe/makefile
index 8a9b7ed37..a51963441 100644
--- a/src/usr/hwpf/hwp/slave_sbe/makefile
+++ b/src/usr/hwpf/hwp/slave_sbe/makefile
@@ -39,6 +39,7 @@ EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe
 EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_revert_sbe_mcs_setup
 EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_check_slave_sbe_seeprom_complete
 EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_getecid
+EXTRAINCDIR += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable
 
 
 ##  NOTE: add new object files when you add a new HWP
@@ -47,9 +48,11 @@ OBJS =  slave_sbe.o \
         proc_check_slave_sbe_seeprom_complete.o \
         proc_extract_sbe_rc.o   \
         proc_read_seeprom.o \
-        proc_getecid.o
+        proc_getecid.o \
+        proc_cen_ref_clk_enable.o
 
 ##  NOTE: add a new directory onto the vpaths when you add a new HWP
+VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable
 VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_revert_sbe_mcs_setup
 VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_check_slave_sbe_seeprom_complete
 VPATH += ${ROOTPATH}/src/usr/hwpf/hwp/slave_sbe/proc_getecid
diff --git a/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.C b/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.C
new file mode 100644
index 000000000..faece1ed5
--- /dev/null
+++ b/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.C
@@ -0,0 +1,187 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.C $ */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2013                   */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// -*- mode: C++; c-file-style: "linux";  -*-
+
+// $Id: proc_cen_ref_clk_enable.C,v 1.2 2013/08/14 20:44:47 jmcgill Exp $
+// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/ipl/fapi/proc_cen_ref_clk_enable.C,v $
+//------------------------------------------------------------------------------
+// *|
+// *! (C) Copyright International Business Machines Corp. 2012
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+// *|
+// *! TITLE       : proc_cen_ref_clk_enable.C
+// *! DESCRIPTION : Enable Centaur reference clocks (FAPI)
+// *!
+// *! OWNER  NAME  : Benedikt Geukes         Email: benedikt.geukes@de.ibm.com
+// *! BACKUP NAME  : Ralph Koester           Email: rkoester@de.ibm.com
+// *!
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+// Includes
+//------------------------------------------------------------------------------
+#include "proc_cen_ref_clk_enable.H"
+
+//------------------------------------------------------------------------------
+// Function definitions
+//------------------------------------------------------------------------------
+
+extern "C"
+{
+
+
+//------------------------------------------------------------------------------
+// Hardware Procedure
+//------------------------------------------------------------------------------
+// parameters: i_target            => chip target
+//             i_attached_centaurs => bitmask representing attached Centaur
+//                                    positions
+// returns:    FAPI_RC_SUCCESS if operation was successful, else error
+//------------------------------------------------------------------------------
+fapi::ReturnCode proc_cen_ref_clk_enable(const fapi::Target & i_target,
+                                         const uint8_t i_attached_centaurs)
+{
+
+    ecmdDataBufferBase fsi_data(64);
+    uint32_t           rc_ecmd = 0;
+    fapi::ReturnCode   rc;
+    uint8_t            configured_centaurs = 0x00;
+    std::vector<fapi::Target> mcs_targets;
+
+    do {
+        rc = fapiGetScom(i_target, MBOX_FSIGP8_0x00050017, fsi_data);
+        if (rc)
+        {
+            FAPI_ERR("proc_cen_ref_clk_enable: fapiGetScom error (MBOX_FSIGP8_0x00050017)");
+            break;
+        }
+
+        FAPI_INF("proc_cen_ref_clk_enable: got number of attached centaurs: i_attached_centaurs=0x%02X\n",
+                 (int) i_attached_centaurs);
+
+        rc = fapiGetChildChiplets(i_target,
+                                  fapi::TARGET_TYPE_MCS_CHIPLET,
+                                  mcs_targets,
+                                  fapi::TARGET_STATE_FUNCTIONAL);
+        if (!rc.ok())
+        {
+            FAPI_ERR("proc_cen_ref_clk_enable: Error from fapiGetChildChiplets");
+            break;
+        }
+
+        // loop through MCS chiplets, match with attached Centaurs
+        for (std::vector<fapi::Target>::iterator i = mcs_targets.begin();
+             (i != mcs_targets.end()) && !rc && !rc_ecmd;
+             i++)
+        {
+            uint8_t mcs_unit_id = 0x00;
+            uint8_t refclock_bit = 0x00;
+
+            rc = FAPI_ATTR_GET(ATTR_CHIP_UNIT_POS,
+                               &(*i),
+                               mcs_unit_id);
+            if (rc)
+            {
+                FAPI_ERR("proc_cen_ref_clk_enable: Error querying ATTR_CHIP_UNIT_POS");
+                break;
+            }
+
+            // continue to next iteration if this MCS is not connected to a Centaur
+            if (!(i_attached_centaurs & (1 << ((NUM_CENTAUR_POS-1)-mcs_unit_id))))
+            {
+                FAPI_DBG("proc_cen_ref_clk_enable: MCS %d is not connected to a Centaur, skipping...\n", mcs_unit_id);
+            }
+            else
+            {
+                // mark that we have configured this MCS/Centaur pair
+                configured_centaurs |= (1 << ((NUM_CENTAUR_POS-1)-mcs_unit_id));
+                FAPI_DBG("proc_cen_ref_clk_enable: MCS %d is connected to a Centaur, configured_centaurs: %02X\n", mcs_unit_id,configured_centaurs);
+
+                // query attribute which defines reflock bit associated with this Centaur
+                rc = FAPI_ATTR_GET(ATTR_DMI_REFCLOCK_SWIZZLE,
+                                   &(*i),
+                                   refclock_bit);
+                if (rc)
+                {
+                    FAPI_ERR("proc_cen_ref_clk_enable: Error querying ATTR_DMI_REFCLOCK_SWIZZLE");
+                    break;
+                }
+                FAPI_DBG("proc_cen_ref_clk_enable: refclock_bit: %02X\n", refclock_bit);
+
+                if ((FSI_GP8_CENTAUR_REFCLOCK_START_BIT + refclock_bit) > FSI_GP8_CENTAUR_REFCLOCK_END_BIT)
+                {
+                    // bit offset exceeds field range
+                    FAPI_ERR("proc_cen_ref_clk_enable: Translated Centaur refclock enable bit position is out of range!");
+                    const uint8_t& POSITION = mcs_unit_id;
+                    const uint8_t& REFCLOCK_BIT = refclock_bit;
+                    FAPI_SET_HWP_ERROR(rc,
+                                       RC_PROC_CEN_REF_CLK_ENABLE_SWIZZLE_ERR);
+                    break;
+                }
+
+                rc_ecmd |= fsi_data.setBit(FSI_GP8_CENTAUR_REFCLOCK_START_BIT+
+                                           refclock_bit);
+            }
+        }
+        if (rc)
+        {
+            break;
+        }
+        if (rc_ecmd)
+        {
+            FAPI_ERR("proc_cen_ref_clk_enable: Error (0x%x) setting up ecmdDataBufferBase", rc_ecmd);
+            rc.setEcmdError(rc_ecmd);
+            break;
+        }
+
+        if (configured_centaurs != i_attached_centaurs)
+        {
+            FAPI_ERR("proc_cen_ref_clk_enable: Not all Centaurs marked as attached were configured");
+            const uint8_t& CONFIGURED = configured_centaurs;
+            const uint8_t& ATTACHED = i_attached_centaurs;
+            FAPI_SET_HWP_ERROR(rc,
+                               RC_PROC_CEN_REF_CLK_ENABLE_CONFIG_ERR);
+            break;
+        }
+
+        FAPI_INF("proc_cen_ref_clk_enable: Enable refclk for Centaur ...");
+
+        rc = fapiPutScom(i_target, MBOX_FSIGP8_0x00050017, fsi_data);
+        if (rc)
+        {
+            FAPI_ERR("proc_cen_ref_clk_enable: fapiPutScom error (MBOX_FSIGP8_0x00050017)");
+            break;
+        }
+    } while(0);  // end do
+
+    // mark function exit
+    FAPI_INF("proc_cen_ref_clk_enable: Exit");
+    return rc;
+}  // end FAPI procedure proc_cen_ref_clk_enable
+
+
+} // extern "C"
+/* Local Variables: */
+/* c-basic-offset: 4 */
+/* End: */
diff --git a/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.H b/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.H
new file mode 100644
index 000000000..ff4507a51
--- /dev/null
+++ b/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.H
@@ -0,0 +1,86 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.H $ */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2013                   */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// $Id: proc_cen_ref_clk_enable.H,v 1.1 2013/08/12 18:19:30 jmcgill Exp $
+// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/ipl/fapi/proc_cen_ref_clk_enable.H,v $
+//------------------------------------------------------------------------------
+// *|
+// *! (C) Copyright International Business Machines Corp. 2012
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+// *|
+// *! TITLE       : proc_cen_ref_clk_enable.H
+// *! DESCRIPTION : Enable Centaur reference clocks (FAPI)
+// *!
+// *! OWNER NAME  : Benedikt Geukes            Email: benedikt.geukes@de.ibm.com
+// *!
+//------------------------------------------------------------------------------
+
+#ifndef _PROC_CEN_REF_CLK_ENABLE_H_
+#define _PROC_CEN_REF_CLK_ENABLE_H_
+
+//------------------------------------------------------------------------------
+// Includes
+//------------------------------------------------------------------------------
+
+#include <fapi.H>
+#include "p8_scom_addresses.H"
+
+//------------------------------------------------------------------------------
+// Structure definitions
+//------------------------------------------------------------------------------
+
+// function pointer typedef definition for HWP call support
+typedef fapi::ReturnCode (*proc_cen_ref_clk_enable_FP_t)(const fapi::Target &,
+                                                         const uint8_t);
+
+
+//------------------------------------------------------------------------------
+// Constant definitions
+//------------------------------------------------------------------------------
+
+const uint8_t NUM_CENTAUR_POS = 8;
+const uint8_t FSI_GP8_CENTAUR_REFCLOCK_START_BIT = 16;
+const uint8_t FSI_GP8_CENTAUR_REFCLOCK_END_BIT = (FSI_GP8_CENTAUR_REFCLOCK_START_BIT + NUM_CENTAUR_POS - 1);
+
+//------------------------------------------------------------------------------
+// Function prototypes
+//------------------------------------------------------------------------------
+
+
+extern "C"
+{
+
+/**
+ * @brief Enble Centaur reference clocks
+ *
+ * @param[in] i_target            chip target
+ * @param[in] i_attached_centaurs Bitmask representing attached Centaur positions
+ *
+ * @return ReturnCode
+ */
+  fapi::ReturnCode proc_cen_ref_clk_enable(const fapi::Target & i_target,
+                                           const uint8_t i_attached_centaurs);
+
+} // extern "C"
+
+#endif // _PROC_CEN_REF_CLK_ENABLE_H
diff --git a/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable_errors.xml b/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable_errors.xml
new file mode 100644
index 000000000..eff8ecdc9
--- /dev/null
+++ b/src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable_errors.xml
@@ -0,0 +1,39 @@
+<!-- IBM_PROLOG_BEGIN_TAG                                                   -->
+<!-- This is an automatically generated prolog.                             -->
+<!--                                                                        -->
+<!-- $Source: src/usr/hwpf/hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable_errors.xml $ -->
+<!--                                                                        -->
+<!-- IBM CONFIDENTIAL                                                       -->
+<!--                                                                        -->
+<!-- COPYRIGHT International Business Machines Corp. 2013                   -->
+<!--                                                                        -->
+<!-- p1                                                                     -->
+<!--                                                                        -->
+<!-- Object Code Only (OCO) source materials                                -->
+<!-- Licensed Internal Code Source Materials                                -->
+<!-- IBM HostBoot Licensed Internal Code                                    -->
+<!--                                                                        -->
+<!-- The source code for this program is not published or otherwise         -->
+<!-- divested of its trade secrets, irrespective of what has been           -->
+<!-- deposited with the U.S. Copyright Office.                              -->
+<!--                                                                        -->
+<!-- Origin: 30                                                             -->
+<!--                                                                        -->
+<!-- IBM_PROLOG_END_TAG                                                     -->
+<!-- $Id: proc_cen_ref_clk_enable_errors.xml,v 1.1 2013/08/14 20:45:46 jmcgill Exp $ -->
+<!-- Error definitions for proc_cen_ref_clk_enable -->
+<hwpErrors>
+  <!-- *********************************************************************** -->
+  <hwpError>
+    <rc>RC_PROC_CEN_REF_CLK_ENABLE_SWIZZLE_ERR</rc>
+    <description>Translated Centaur refclock enable bit position is out of range.</description>
+    <ffdc>POSITION</ffdc>
+    <ffdc>REFCLOCK_BIT</ffdc>
+  </hwpError>
+  <hwpError>
+    <rc>RC_PROC_CEN_REF_CLK_ENABLE_CONFIG_ERR</rc>
+    <description>Not all Centaurs marked as attached were configured.</description>
+    <ffdc>CONFIGURED</ffdc>
+    <ffdc>ATTACHED</ffdc>
+  </hwpError>
+</hwpErrors>
diff --git a/src/usr/hwpf/hwp/slave_sbe/slave_sbe.C b/src/usr/hwpf/hwp/slave_sbe/slave_sbe.C
index e96dd3ea5..859a96389 100644
--- a/src/usr/hwpf/hwp/slave_sbe/slave_sbe.C
+++ b/src/usr/hwpf/hwp/slave_sbe/slave_sbe.C
@@ -52,6 +52,7 @@
 #include <fapi.H>
 #include <fapiPlatHwpInvoker.H>
 
+#include "proc_cen_ref_clk_enable/proc_cen_ref_clk_enable.H"
 #include "slave_sbe.H"
 #include "proc_revert_sbe_mcs_setup/proc_revert_sbe_mcs_setup.H"
 #include "proc_check_slave_sbe_seeprom_complete.H"
@@ -65,6 +66,8 @@ using namespace TARGETING;
 namespace SLAVE_SBE
 {
 
+uint8_t getMembufsAttachedBitMask( TARGETING::Target * i_procChipHandle  );
+
 //******************************************************************************
 // call_proc_revert_sbe_mcs_setup function
 //******************************************************************************
@@ -348,5 +351,167 @@ void* call_proc_xmit_sbe(void *io_pArgs )
     return l_stepError.getErrorHandle();
 }
 
+//******************************************************************************
+// call_proc_cen_ref_clock_enable
+//******************************************************************************
+void* call_proc_cen_ref_clk_enable(void *io_pArgs )
+{
+    errlHndl_t  l_errl = NULL;
+
+    IStepError  l_stepError;
+
+    TRACDCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+               "call_proc_cen_ref_clock_enable enter" );
+
+    TARGETING::TargetHandleList functionalProcChipList;
+
+    getAllChips(functionalProcChipList, TYPE_PROC, true);
+
+    // loop thru the list of processors
+    for (TargetHandleList::const_iterator
+            l_proc_iter = functionalProcChipList.begin();
+            l_proc_iter != functionalProcChipList.end();
+            ++l_proc_iter)
+    {
+        TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+                "target HUID %.8X",
+                TARGETING::get_huid( *l_proc_iter ));
+
+        uint8_t l_membufsAttached = 0;
+        // get a bit mask of present/functional dimms assocated with
+        // this processor
+        l_membufsAttached = getMembufsAttachedBitMask( *l_proc_iter );
+
+
+        TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+                "passing target HUID %.8X and 0x%x mask",
+                TARGETING::get_huid( *l_proc_iter ), l_membufsAttached );
+
+        if( l_membufsAttached )
+        {
+
+            fapi::Target l_fapiProcTarget( fapi::TARGET_TYPE_PROC_CHIP,
+                                       *l_proc_iter );
+
+            // Invoke the HWP passing in the proc target and
+            // a bit mask indicating connected centaurs
+            FAPI_INVOKE_HWP(l_errl,
+                    proc_cen_ref_clk_enable,
+                    l_fapiProcTarget, l_membufsAttached );
+
+            if (l_errl)
+            {
+                TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+                        "ERROR : proc_cen_ref_clk_enable",
+                        "failed, returning errorlog" );
+
+                // capture the target data in the elog
+                ErrlUserDetailsTarget( *l_proc_iter ).addToLog( l_errl );
+                /*@
+                 * @errortype
+                 * @reasoncode  ISTEP_SLAVE_SBE_FAILED
+                 * @severity    ERRORLOG::ERRL_SEV_UNRECOVERABLE
+                 * @moduleid    ISTEP_PROC_CEN_REF_CLK_ENABLE
+                 * @userdata1   bytes 0-1: plid identifying first error
+                 *              bytes 2-3: reason code of first error
+                 * @userdata2   bytes 0-1: total number of elogs included
+                 *              bytes 2-3: N/A
+                 * @devdesc     call to proc_cen_ref_clk_enable returned an error
+                 *
+                 */
+                l_stepError.addErrorDetails( ISTEP_SLAVE_SBE_FAILED,
+                        ISTEP_PROC_CEN_REF_CLK_ENABLE,
+                        l_errl );
+
+                errlCommit( l_errl, HWPF_COMP_ID );
+            }
+            else
+            {
+                TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+                        "SUCCESS : proc_cen_ref_clk_enable",
+                        "completed ok");
+            }
+        }
+    }   // endfor
+
+    TRACDCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+               "call_proc_cen_ref_clock_enable exit" );
+
+    // end task, returning any errorlogs to IStepDisp
+    return l_stepError.getErrorHandle();
+}
+
+//******************************************************************************
+// getMembufsAttachedBitMask - helper function for hwp proc_cen_ref_clk_enable
+//******************************************************************************
+uint8_t getMembufsAttachedBitMask( TARGETING::Target * i_procTarget  )
+{
+    const uint8_t MCS_WITH_ATTACHED_CENTAUR_MASK = 0x80;
+
+    TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+            "Finding functional membuf chips downstream from "
+            "proc chip with HUID of 0x%08X",
+            i_procTarget->getAttr<TARGETING::ATTR_HUID>());
+
+    uint8_t l_attachedMembufs = 0;
+
+    // Get list of functional membuf chips downstream from the given
+    // proc chip
+    TARGETING::TargetHandleList functionalMembufChipList;
+
+    getChildAffinityTargets( functionalMembufChipList,
+                      const_cast<TARGETING::Target*>(i_procTarget ),
+                      TARGETING::CLASS_CHIP,
+                      TARGETING::TYPE_MEMBUF,
+                      true);
+
+    // loop through the functional membufs
+    for(TARGETING::TargetHandleList::const_iterator pTargetItr
+                            = functionalMembufChipList.begin();
+                            pTargetItr != functionalMembufChipList.end();
+                            pTargetItr++)
+    {
+        // Find each functional membuf chip's upstream functional MCS
+        // unit, if any, and accumulate it into the attached membuf
+        // chips mask
+        TARGETING::TargetHandleList functionalMcsUnitList;
+
+        getParentAffinityTargets( functionalMcsUnitList, *pTargetItr,
+                                  TARGETING::CLASS_UNIT, TARGETING::TYPE_MCS,
+                                  true );
+
+        if(functionalMcsUnitList.empty())
+        {
+            TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+                    "Functional membuf chip with HUID of 0x%08X "
+                    "is not attached to an upstream functional MCS",
+                    (*pTargetItr)->getAttr<
+                    TARGETING::ATTR_HUID>());
+            continue;
+        }
+
+        TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+                "Found functional MCS unit with HUID of 0x%08X "
+                "upstream from functional membuf chip with HUID of 0x%08X",
+                ((*functionalMcsUnitList.begin())->getAttr<
+                 TARGETING::ATTR_CHIP_UNIT>()),
+                (*pTargetItr)->getAttr<
+                TARGETING::ATTR_HUID>());
+        l_attachedMembufs |=
+            ((MCS_WITH_ATTACHED_CENTAUR_MASK) >>
+             ((*functionalMcsUnitList.begin())->getAttr<
+              TARGETING::ATTR_CHIP_UNIT>()));
+    }
+
+    TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace,
+            "Proc chip with HUID of 0x%08X has attached membuf "
+            "mask (l_attachedMembufs) of 0x%02X",
+            i_procTarget->getAttr<TARGETING::ATTR_HUID>(),
+            l_attachedMembufs);
+
+    // return the bitmask
+    return l_attachedMembufs;
+
+}
 
 }
diff --git a/src/usr/hwpf/hwp/slave_sbe/slave_sbe.H b/src/usr/hwpf/hwp/slave_sbe/slave_sbe.H
index b0fed944f..38637c85c 100644
--- a/src/usr/hwpf/hwp/slave_sbe/slave_sbe.H
+++ b/src/usr/hwpf/hwp/slave_sbe/slave_sbe.H
@@ -1,26 +1,25 @@
-/*  IBM_PROLOG_BEGIN_TAG
- *  This is an automatically generated prolog.
- *
- *  $Source: src/usr/hwpf/hwp/slave_sbe/slave_sbe.H $
- *
- *  IBM CONFIDENTIAL
- *
- *  COPYRIGHT International Business Machines Corp. 2012
- *
- *  p1
- *
- *  Object Code Only (OCO) source materials
- *  Licensed Internal Code Source Materials
- *  IBM HostBoot Licensed Internal Code
- *
- *  The source code for this program is not published or other-
- *  wise divested of its trade secrets, irrespective of what has
- *  been deposited with the U.S. Copyright Office.
- *
- *  Origin: 30
- *
- *  IBM_PROLOG_END_TAG
- */
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/slave_sbe/slave_sbe.H $                      */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2012,2013              */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
 
 #ifndef  __SLAVE_SBE_SLAVE_SBE_H
 #define  __SLAVE_SBE_SLAVE_SBE_H
@@ -122,6 +121,14 @@ void* call_proc_check_slave_sbe_seeprom_complete(void *io_pArgs);
  *  return any error logs to istep 
  */
 void* call_proc_xmit_sbe(void *io_pArgs);
+/**
+ *  @brief  proc_cen_ref_clk_enable
+ *
+ *  param[in,out]   -   pointer to any arguments, usually NULL
+ *
+ *  return any error logs to istep 
+ */
+void* call_proc_cen_ref_clk_enable(void *io_pArgs);
 
 
 };   // end namespace
diff --git a/src/usr/hwpf/makefile b/src/usr/hwpf/makefile
index 67aa2984f..608f4d082 100644
--- a/src/usr/hwpf/makefile
+++ b/src/usr/hwpf/makefile
@@ -101,7 +101,8 @@ HWP_ERROR_XML_FILES = hwp/fapiHwpErrorInfo.xml   \
     hwp/dram_training/mem_startclocks/memory_cen_stopclocks.xml \
     hwp/dram_training/mss_scominit/memory_mss_scominit.xml \
     hwp/dram_training/mss_draminit_trainadv/memory_mss_mcbist_common.xml \
-    hwp/dram_initialization/proc_setup_bars/memory_mss_setup_bars.xml
+    hwp/dram_initialization/proc_setup_bars/memory_mss_setup_bars.xml \
+    hwp/slave_sbe/proc_cen_ref_clk_enable/proc_cen_ref_clk_enable_errors.xml
 
 ## these get generated into obj/genfiles/AttributeIds.H
 HWP_ATTR_XML_FILES = hwp/memory_attributes.xml \