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diff --git a/ReferenceCode/Chipset/SystemAgent/MemoryInit/Pei/Source/ReadTraining/MrcReadDqDqs.h b/ReferenceCode/Chipset/SystemAgent/MemoryInit/Pei/Source/ReadTraining/MrcReadDqDqs.h
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+/** @file
+  Read DQ/DQS training definitions.
+
+@copyright
+  Copyright (c) 1999 - 2012 Intel Corporation. All rights reserved.
+  This software and associated documentation (if any) is furnished
+  under a license and may only be used or copied in accordance
+  with the terms of the license. Except as permitted by such
+  license, no part of this software or documentation may be
+  reproduced, stored in a retrieval system, or transmitted in any
+  form or by any means without the express written consent of
+  Intel Corporation.
+
+  This file contains an 'Intel Peripheral Driver' and uniquely
+  identified as "Intel Reference Module" and is
+  licensed for Intel CPUs and chipsets under the terms of your
+  license agreement with Intel or your vendor.  This file may
+  be modified by the user, subject to additional terms of the
+  license agreement.
+**/
+
+#ifndef _MrcReadDqDqs_h_
+#define _MrcReadDqDqs_h_
+
+#include "McAddress.h"
+#include "MrcTypes.h"
+#include "MrcCommon.h"
+#include "MrcGlobal.h"
+
+#define RMPR_DQS_START (-32)
+#define RMPR_DQS_STOP  (32)
+
+#define RMPR_DQS_STEP  (1)
+
+#define RMPR_MIN_WIDTH (12)
+
+/**
+@brief
+  Perform Read MPR Training.
+  Center read DQ-DQS with MPR pattern.
+
+  @param[in, out] MrcData   - Include all MRC global data.
+
+  @retval MrcStatus - mrcSuccess or reason for failure.
+**/
+extern
+MrcStatus
+MrcReadMprTraining (
+  IN OUT MrcParameters *const MrcData
+  );
+
+/**
+@brief
+  Peform Read Timing Centering.
+  Center Rx DQS-DQ using moderate pattern with 1D eye
+
+  @param[in] MrcData         - Include all MRC global data.
+
+  @retval MrcStatus       - if it succeded returns mrcSuccess
+**/
+extern
+MrcStatus
+MrcReadTimingCentering (
+  IN     MrcParameters *const MrcData
+  );
+
+/**
+@brief
+  Peform Read Timing Centering in 2D.
+  Final read timing centering using 2D algorithm and per bit optimization
+
+  @param[in] MrcData         - Include all MRC global data.
+
+  @retval MrcStatus       - if it succeded returns mrcSuccess
+**/
+extern
+MrcStatus
+MrcReadTimingCentering2D (
+  IN     MrcParameters *const MrcData
+  );
+
+/**
+@brief
+  Peform Read Voltage Centering in 2D.
+  Note: This function currently only supports param = RdV
+
+  @param[in] MrcData       - Include all MRC global data.
+
+  @retval MrcStatus       - if it succeded return mrcSuccess
+**/
+extern
+MrcStatus
+MrcReadVoltageCentering2D (
+  IN     MrcParameters *const MrcData
+  );
+
+#endif // _MrcReadDqDqs_h_