Subversion Repositories or1k

/* mc.h -- Simulation of Memory Controller

         Copyright (C) 2001 by Marko Mlinar, markom@opencores.org

         This file is part of OpenRISC 1000 Architectural Simulator.

         This program is free software; you can redistribute it and/or modify

         it under the terms of the GNU General Public License as published by

         the Free Software Foundation; either version 2 of the License, or

         (at your option) any later version.

         This program is distributed in the hope that it will be useful,

         but WITHOUT ANY WARRANTY; without even the implied warranty of

         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.    See the

         GNU General Public License for more details.

         You should have received a copy of the GNU General Public License

         along with this program; if not, write to the Free Software

         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

/* Prototypes */

#ifndef __MC_H

#define __MC_H

void mc_reset();

void mc_status();

inline void mc_clock();

#define N_CE        (8)

#define MC_CSR      (0x00)

#define MC_POC      (0x04)

#define MC_BA_MASK  (0x08)

#define MC_CSC(i)   (0x10 + (i) * 8)

#define MC_TMS(i)   (0x14 + (i) * 8)

#define MC_ADDR_SPACE (MC_CSC(N_CE))

/* POC register field definition */

#define MC_POC_EN_BW_OFFSET     0

#define MC_POC_EN_BW_WIDTH      2

#define MC_POC_EN_MEMTYPE_OFFSET        2

#define MC_POC_EN_MEMTYPE_WIDTH 2

/* CSC register field definition */

#define MC_CSC_EN_OFFSET        0

#define MC_CSC_MEMTYPE_OFFSET   1

#define MC_CSC_MEMTYPE_WIDTH    2

#define MC_CSC_BW_OFFSET        4

#define MC_CSC_BW_WIDTH         2

#define MC_CSC_MS_OFFSET        6

#define MC_CSC_MS_WIDTH         2

#define MC_CSC_WP_OFFSET        8

#define MC_CSC_BAS_OFFSET       9

#define MC_CSC_KRO_OFFSET       10

#define MC_CSC_PEN_OFFSET       11

#define MC_CSC_SEL_OFFSET       16

#define MC_CSC_SEL_WIDTH        8

#define MC_CSC_MEMTYPE_SDRAM  0

#define MC_CSC_MEMTYPE_SSRAM  1

#define MC_CSC_MEMTYPE_ASYNC  2

#define MC_CSC_MEMTYPE_SYNC   3

#define MC_CSR_VALID            0xFF000703LU

#define MC_POC_VALID            0x0000000FLU

#define MC_BA_MASK_VALID        0x000003FFLU

#define MC_CSC_VALID            0x00FF0FFFLU

#define MC_TMS_SDRAM_VALID      0x0FFF83FFLU

#define MC_TMS_SSRAM_VALID      0x00000000LU

#define MC_TMS_ASYNC_VALID      0x03FFFFFFLU

#define MC_TMS_SYNC_VALID       0x01FFFFFFLU

#define MC_TMS_VALID            0xFFFFFFFFLU /* reg test compat. */

/* TMS register field definition SDRAM */

#define MC_TMS_SDRAM_TRFC_OFFSET        24

#define MC_TMS_SDRAM_TRFC_WIDTH         4

#define MC_TMS_SDRAM_TRP_OFFSET         20

#define MC_TMS_SDRAM_TRP_WIDTH          4

#define MC_TMS_SDRAM_TRCD_OFFSET        17

#define MC_TMS_SDRAM_TRCD_WIDTH         4

#define MC_TMS_SDRAM_TWR_OFFSET         15

#define MC_TMS_SDRAM_TWR_WIDTH          2

#define MC_TMS_SDRAM_WBL_OFFSET         9

#define MC_TMS_SDRAM_OM_OFFSET          7

#define MC_TMS_SDRAM_OM_WIDTH           2

#define MC_TMS_SDRAM_CL_OFFSET          4

#define MC_TMS_SDRAM_CL_WIDTH           3

#define MC_TMS_SDRAM_BT_OFFSET          3

#define MC_TMS_SDRAM_BL_OFFSET          0

#define MC_TMS_SDRAM_BL_WIDTH           3

/* TMS register field definition ASYNC */

#define MC_TMS_ASYNC_TWWD_OFFSET        20

#define MC_TMS_ASYNC_TWWD_WIDTH         6

#define MC_TMS_ASYNC_TWD_OFFSET         16

#define MC_TMS_ASYNC_TWD_WIDTH          4

#define MC_TMS_ASYNC_TWPW_OFFSET        12

#define MC_TMS_ASYNC_TWPW_WIDTH         4

#define MC_TMS_ASYNC_TRDZ_OFFSET        8

#define MC_TMS_ASYNC_TRDZ_WIDTH         4

#define MC_TMS_ASYNC_TRDV_OFFSET        0

#define MC_TMS_ASYNC_TRDV_WIDTH         8

/* TMS register field definition SYNC  */

#define MC_TMS_SYNC_TTO_OFFSET          16

#define MC_TMS_SYNC_TTO_WIDTH           9

#define MC_TMS_SYNC_TWR_OFFSET          12

#define MC_TMS_SYNC_TWR_WIDTH           4

#define MC_TMS_SYNC_TRDZ_OFFSET         8

#define MC_TMS_SYNC_TRDZ_WIDTH          4

#define MC_TMS_SYNC_TRDV_OFFSET         0

#define MC_TMS_SYNC_TRDV_WIDTH          8

struct mc {

  unsigned long csr;

  unsigned long poc;

  unsigned long ba_mask;

  unsigned long csc[N_CE];

  unsigned long tms[N_CE];

};

#endif