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diff --git a/ReferenceCode/Chipset/SystemAgent/MemoryInit/Pei/Source/McConfiguration/MrcRefreshConfiguration.h b/ReferenceCode/Chipset/SystemAgent/MemoryInit/Pei/Source/McConfiguration/MrcRefreshConfiguration.h
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+/** @file
+  This module include MRC_RefreshConfiguration external data
+
+@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 _MrcRefreshConfiguration_h_
+#define _MrcRefreshConfiguration_h_
+
+#include "MrcTypes.h"
+#include "MrcApi.h"
+#include "McAddress.h"
+#include "MrcCommon.h"
+#include "MrcDdr3.h"
+#include "MrcOem.h"
+#include "MrcGlobal.h"
+
+///
+/// tDLLK values
+///
+#define tDLLK_VALUE         512
+
+///
+/// tXSOffset values
+///
+#define Offset_10nsec_800   4
+#define Offset_10nsec_1067  6
+#define Offset_10nsec_1333  7
+#define Offset_10nsec_1600  8
+#define Offset_10nsec_1867  10
+#define Offset_10nsec_2133  11
+#define Offset_10nsec_2400  12
+#define Offset_10nsec_2667  14
+
+///
+/// tMOD values. max(12nCK,15ns)
+///
+#define tMOD_800            12
+#define tMOD_1067           12
+#define tMOD_1333           12
+#define tMOD_1600           12
+#define tMOD_1867           14
+#define tMOD_2133           16
+#define tMOD_2400           18
+#define tMOD_2667           20
+
+///
+/// tZQOPER values.
+///
+#define tZQOPER_1600        256
+#define tZQOPER_1867        299
+#define tZQOPER_2133        342
+#define tZQOPER_2400        384
+#define tZQOPER_2667        427
+
+//
+// ZQCL and ZQCS values for LPDDR3, in [ps]
+//
+#define tZQCL_MIN           360000
+#define tZQCS_MIN           90000
+
+///
+/// tZQCS values.
+///
+#define tZQCS_1600          64
+#define tZQCS_1867          75
+#define tZQCS_2133          86
+#define tZQCS_2400          96
+#define tZQCS_2667          107
+
+//
+// ZQCS period values, in (tREFI * 128) units
+//
+#define ZQCS_PERIOD_DDR3    128   // tREFI * 128 = 7.8 us * 128 = 1ms
+#define ZQCS_PERIOD_LPDDR3  256   // tREFI * 128 = 3.9 us * 128 = 0.5ms
+
+/**
+@brief
+  This function returns the tZQOPER value.
+  tZQOPER = Defines the period required for ZQCL after SR exit.
+
+  @param[in] MrcData         - Include all MRC global data.
+  @param[in] Frequency       - The memory frequency.
+
+  @retval The tZQOPER value.
+**/
+extern
+U32
+tZQOPERGet (
+  IN MrcParameters *const MrcData,
+  IN const MrcFrequency Frequency
+  );
+
+/**
+@brief
+  This function returns the tMOD value.
+  tMOD = max(12nCK, 15ns) nCK change by the frequency.
+
+  @param[in] Frequency       - The memory frequency.
+
+  @retval The tMOD value.
+**/
+extern
+U32
+tMODGet (
+  IN const MrcFrequency Frequency
+  );
+
+/**
+@brief
+  This function returns the tZQCS value.
+
+  @param[in] MrcData         - Include all MRC global data.
+  @param[in] Frequency       - The memory frequency.
+
+  @retval The tZQCS value.
+**/
+extern
+U32
+tZQCSGet (
+  IN MrcParameters *const MrcData,
+  IN const MrcFrequency Frequency
+  );
+
+/**
+@brief
+  This function configures the TC_MR2_SHADDOW register and its fields.
+
+  @param[in] MrcData         - Include all MRC global data.
+  @param[in] Channel         - Channel to work on.
+  @param[in] Dimm            - Dimm to work on.
+  @param[in] Mr2Value        - The value of MR2 to setup.
+
+  @retval Nothing.
+**/
+extern
+void
+SetTcMr2ShadowReg (
+  IN MrcParameters *const MrcData,
+  IN const U32            Channel,
+  IN const U32            Dimm,
+  IN U32                  Mr2Value
+  );
+
+/**
+@brief
+  This function executes the refresh configuration process.
+
+  @param[in] MrcData         - Include all MRC global data.
+
+  @retval Nothing.
+**/
+extern
+void
+MrcRefreshConfiguration (
+  IN MrcParameters *const MrcData
+  );
+
+#endif