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/* mc.h -- Simulation of Memory Controller

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

   Copyright (C) 2008 Embecosm Limited

   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>

   This file is part of Or1ksim, the 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 3 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, see <http://www.gnu.org/licenses/>.  */

/* This program is commented throughout in a fashion suitable for processing

   with Doxygen. */

#ifndef MC__H

#define MC__H

/* Package includes */

#include "abstract.h"

/* Constants. Also used by the test harness */

#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

/* Prototypes for external use */

extern void  mc_done ();

extern void  reg_mc_sec ();

extern void  mc_reg_mem_area (struct dev_memarea *mem,

                              unsigned int        cs,

                              int                 mc);

#endif /* MC__H */