mpc107memparam.h

LoPEC Early Access VxWorks BSP

/* mpc107MemParam.h - Memory Controller Parameter Initialization definitions */

/* Copyright 2000-2001 Wind River Systems, Inc. */
/* Copyright 1998-2001 Motorola, Inc. */

/*
modification history
--------------------
01d,23mar01,cak  modified sramConfigReg to include the ErrEnR1 register 
01c,12jan01,djs  changes and cleanup related to SPD
01b,08dec00,djs  changed kahlua names to MPC107.
01a,02nov00,djs  created from 01c,07jul99,srr mv2100/kahulaMemParam.h
*/

#ifndef INC_MPC107MEMPARAM_H
#define INC_MPC107MEMPARAM_H

/*
DESCRIPTION

typedefs and defines common to all memory controllers 
*/

/*
 * Memory Interface control structure template.  Values to program
 * Memory Interface with.
 */

typedef struct {
   UINT MCCR1;		/* Memory Control Configuration Reg 1 */
   UINT MCCR2;		/* Memory Control Configuration Reg 2 */
   UINT MCCR3;		/* Memory Control Configuration Reg 3 */
   UINT MCCR4;		/* Memory Control Configuration Reg 4 */

   UINT ERRENR1;	/* Error Enabling Register 1 */

   UINT MSR3_2_1_0;	/* Memory Starting Address Reg 3/2/1/0 */
   UINT MSR7_6_5_4;	/* Memory Starting Address Reg 7/6/5/4 */
   UINT MSER3_2_1_0;	/* Extended Mem Starting Address Reg 3/2/1/0 */
   UINT MSER7_6_5_4;	/* Extended Mem Starting Address Reg 7/6/5/4 */

   UINT MER3_2_1_0;	/* Memory Ending Address Reg 3/2/1/0 */
   UINT MER7_6_5_4;	/* Memory Ending Address Reg 7/6/5/4 */
   UINT MEER3_2_1_0;	/* Extended Memory Ending Address Reg 3/2/1/0 */
   UINT MEER7_6_5_4;	/* Extended Memory Ending Address Reg 7/6/5/4 */

   UCHAR MPMR;		/* Memory Page Mode Reg */
   UCHAR MBER;		/* Memory Bank Enable Reg */

   UINT sdramSize;	/* Total memory found */
   UCHAR clkFrequency;	/* Operating clock frequency */
} sramConfigReg;

#define MPC107_MEM_ADDR_SHIFT		20
#define MPC107_EMEM_ADDR_SHIFT          28
#define MPC107_MEM_BANK_INDEX		8
#define MPC107_MEM_BANK_MASK            0xFF

#define MPC107_RAM_ROW_BIT_SHIFT	2

/* Refressh rates in uSecs. */

#define MPC107_REFINT_REFR_NORMAL	15625
#define MPC107_REFINT_REFR_REDUCED_DIV4	3900
#define MPC107_REFINT_REFR_REDUCED_DIV2	7800
#define MPC107_REFINT_REFR_EXTENDED_2X	31300
#define MPC107_REFINT_REFR_EXTENDED_4X	62500
#define MPC107_REFINT_REFR_EXTENDED_8X	125000

#endif /* INC_MPC107MEMPARAM_H */