src/vendorcode/amd/agesa/f10/Proc/Mem/Tech/DDR3/mtspd3.h

/**
 * @file
 *
 * mtspd3.h
 *
 * Technology SPD support for DDR3
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project: AGESA
 * @e sub-project: (Mem/Tech/DDR3)
 * @e \$Revision: 44323 $ @e \$Date: 2010-12-22 01:24:58 -0700 (Wed, 22 Dec 2010) $
 *
 **/
/*****************************************************************************
  *
  * Copyright (c) 2011, Advanced Micro Devices, Inc.
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *     * Redistributions of source code must retain the above copyright
  *       notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above copyright
  *       notice, this list of conditions and the following disclaimer in the
  *       documentation and/or other materials provided with the distribution.
  *     * Neither the name of Advanced Micro Devices, Inc. nor the names of 
  *       its contributors may be used to endorse or promote products derived 
  *       from this software without specific prior written permission.
  * 
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  * 
  * ***************************************************************************
  *
 */

#ifndef _MTSPD3_H_
#define _MTSPD3_H_

/*----------------------------------------------------------------------------
 *   Mixed (DEFINITIONS AND MACROS / TYPEDEFS, STRUCTURES, ENUMS)
 *
 *----------------------------------------------------------------------------
 */

/*-----------------------------------------------------------------------------
 *                         DEFINITIONS AND MACROS
 *
 *-----------------------------------------------------------------------------
 */

/*===============================================================================
 *   Jedec DDR III
 *===============================================================================
 */
#define SPD_BYTE_USED     0
#define SPD_TYPE         2              /* SPD byte read location */
#define JED_DDR_SDRAM     7              /* Jedec defined bit field */
#define JED_DDR2_SDRAM    8              /* Jedec defined bit field */
#define JED_DDR3SDRAM    0xB            /* Jedec defined bit field */

#define SPD_DIMM_TYPE    3
#define SPD_ATTRIB      21
#define JED_DIF_CK_MSK    0x20            /* Differential Clock Input */
#define JED_RDIMM       1
#define JED_MINIRDIMM   5
#define JED_UDIMM       2
#define JED_SODIMM       3

#define SPD_L_BANKS      4               /* [7:4] number of [logical] banks on each device */
#define SPD_DENSITY     4               /* bit 3:0 */
#define SPD_ROW_SZ       5               /* bit 5:3 */
#define SPD_COL_SZ       5               /* bit 2:0 */
#define SPD_RANKS       7               /* bit 5:3 */
#define SPD_DEV_WIDTH    7               /* bit 2:0 */
#define SPD_ECCBITS     8               /* bit 4:3 */
#define JED_ECC         8
#define SPD_RAWCARD     62              /* bit 2:0 */
#define SPD_ADDRMAP     63              /* bit 0 */

#define SPD_CTLWRD03     70              /* bit 7:4 */
#define SPD_CTLWRD04     71              /* bit 3:0 */
#define SPD_CTLWRD05     71              /* bit 7:4 */

#define SPD_DIVIDENT    10
#define SPD_DIVISOR     11

#define SPD_TCK         12
#define SPD_CASLO       14
#define SPD_CASHI       15
#define SPD_TAA         16

#define SPD_TRP         20
#define SPD_TRRD        19
#define SPD_TRCD        18
#define SPD_TRAS        22
#define SPD_TWR         17
#define SPD_TWTR        26
#define SPD_TRTP        27
#define SPD_TRC         23
#define SPD_UPPER_TRC   21              /* bit 7:4 */
#define SPD_UPPER_TRAS  21              /* bit 3:0 */
#define SPD_TFAW        29
#define SPD_UPPER_TFAW  28              /* bit 3:0 */

/*-----------------------------
 * Jedec DDR II related equates
 *-----------------------------
 */

#define CL_DEF          4              /* Default value for failsafe operation. 4=CL 6.0 T */
#define T_DEF           4              /* Default value for failsafe operation. 4=2.5ns (cycle time) */

#define BIAS_TRTP_T      4
#define BIAS_TRCD_T      5
#define BIAS_TRAS_T      15
#define BIAS_TRC_T       11
#define BIAS_TRRD_T      4
#define BIAS_TWR_T       4
#define BIAS_TRP_T       5
#define BIAS_TWTR_T      4
#define BIAS_TFAW_T      14

#define MIN_TRTP_T       4
#define MAX_TRTP_T       7
#define MIN_TRCD_T       5
#define MAX_TRCD_T       12
#define MIN_TRAS_T       15
#define MAX_TRAS_T       30
#define MIN_TRC_T        11
#define MAX_TRC_T        42
#define MIN_TRRD_T       4
#define MAX_TRRD_T       7
#define MIN_TWR_T        5
#define MAX_TWR_T        12
#define MIN_TRP_T        5
#define MAX_TRP_T        12
#define MIN_TWTR_T       4
#define MAX_TWTR_T       7
#define MIN_TFAW_T       16
#define MAX_TFAW_T       32

/*----------------------------------------------------------------------------
 *                         TYPEDEFS, STRUCTURES, ENUMS
 *
 *----------------------------------------------------------------------------
 */

/*----------------------------------------------------------------------------
 *                           FUNCTIONS PROTOTYPE
 *
 *----------------------------------------------------------------------------
 */


#endif  /* _MTSPD3_H_ */