linux-vybrid_public/arch/blackfin/mach-bf533/include/mach/mem_init.h

/*
 * File:         include/asm-blackfin/mach-bf533/mem_init.h
 * Based on:
 * Author:
 *
 * Created:
 * Description:
 *
 * Rev:
 *
 * Modified:
 *               Copyright 2004-2006 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * 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, 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; see the file COPYING.
 * If not, write to the Free Software Foundation,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#if (CONFIG_MEM_MT48LC16M16A2TG_75 || CONFIG_MEM_MT48LC64M4A2FB_7E || \
     CONFIG_MEM_MT48LC32M16A2TG_75 || CONFIG_MEM_GENERIC_BOARD)
#if (CONFIG_SCLK_HZ > 119402985)
#define SDRAM_tRP       TRP_2
#define SDRAM_tRP_num   2
#define SDRAM_tRAS      TRAS_7
#define SDRAM_tRAS_num  7
#define SDRAM_tRCD      TRCD_2
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985)
#define SDRAM_tRP       TRP_2
#define SDRAM_tRP_num   2
#define SDRAM_tRAS      TRAS_6
#define SDRAM_tRAS_num  6
#define SDRAM_tRCD      TRCD_2
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612)
#define SDRAM_tRP       TRP_2
#define SDRAM_tRP_num   2
#define SDRAM_tRAS      TRAS_5
#define SDRAM_tRAS_num  5
#define SDRAM_tRCD      TRCD_2
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239)
#define SDRAM_tRP       TRP_2
#define SDRAM_tRP_num   2
#define SDRAM_tRAS      TRAS_4
#define SDRAM_tRAS_num  4
#define SDRAM_tRCD      TRCD_2
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866)
#define SDRAM_tRP       TRP_2
#define SDRAM_tRP_num   2
#define SDRAM_tRAS      TRAS_3
#define SDRAM_tRAS_num  3
#define SDRAM_tRCD      TRCD_2
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667)
#define SDRAM_tRP       TRP_1
#define SDRAM_tRP_num   1
#define SDRAM_tRAS      TRAS_4
#define SDRAM_tRAS_num  3
#define SDRAM_tRCD      TRCD_1
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493)
#define SDRAM_tRP       TRP_1
#define SDRAM_tRP_num   1
#define SDRAM_tRAS      TRAS_3
#define SDRAM_tRAS_num  3
#define SDRAM_tRCD      TRCD_1
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119)
#define SDRAM_tRP       TRP_1
#define SDRAM_tRP_num   1
#define SDRAM_tRAS      TRAS_2
#define SDRAM_tRAS_num  2
#define SDRAM_tRCD      TRCD_1
#define SDRAM_tWR       TWR_2
#endif
#if (CONFIG_SCLK_HZ <= 29850746)
#define SDRAM_tRP       TRP_1
#define SDRAM_tRP_num   1
#define SDRAM_tRAS      TRAS_1
#define SDRAM_tRAS_num  1
#define SDRAM_tRCD      TRCD_1
#define SDRAM_tWR       TWR_2
#endif
#endif

#if (CONFIG_MEM_MT48LC16M16A2TG_75)
  /*SDRAM INFORMATION: */
#define SDRAM_Tref  64		/* Refresh period in milliseconds   */
#define SDRAM_NRA   8192	/* Number of row addresses in SDRAM */
#define SDRAM_CL    CL_3
#endif

#if (CONFIG_MEM_MT48LC64M4A2FB_7E)
  /*SDRAM INFORMATION: */
#define SDRAM_Tref  64		/* Refresh period in milliseconds   */
#define SDRAM_NRA   8192	/* Number of row addresses in SDRAM */
#define SDRAM_CL    CL_3
#endif

#if (CONFIG_MEM_MT48LC32M16A2TG_75)
  /*SDRAM INFORMATION: */
#define SDRAM_Tref  64		/* Refresh period in milliseconds   */
#define SDRAM_NRA   8192	/* Number of row addresses in SDRAM */
#define SDRAM_CL    CL_3
#endif

#if (CONFIG_MEM_GENERIC_BOARD)
  /*SDRAM INFORMATION: Modify this for your board */
#define SDRAM_Tref  64		/* Refresh period in milliseconds   */
#define SDRAM_NRA   8192	/* Number of row addresses in SDRAM */
#define SDRAM_CL    CL_3
#endif

/* Equation from section 17 (p17-46) of BF533 HRM */
#define mem_SDRRC       (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref)  / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num)

/* Enable SCLK Out */
#define mem_SDGCTL        (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR | PSS)

#if defined CONFIG_CLKIN_HALF
#define CLKIN_HALF       1
#else
#define CLKIN_HALF       0
#endif

#if defined CONFIG_PLL_BYPASS
#define PLL_BYPASS      1
#else
#define PLL_BYPASS       0
#endif

/***************************************Currently Not Being Used *********************************/
#define flash_EBIU_AMBCTL_WAT  ((CONFIG_FLASH_SPEED_BWAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
#define flash_EBIU_AMBCTL_RAT  ((CONFIG_FLASH_SPEED_BRAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
#define flash_EBIU_AMBCTL_HT   ((CONFIG_FLASH_SPEED_BHT  * 4) / (4000000000 / CONFIG_SCLK_HZ))
#define flash_EBIU_AMBCTL_ST   ((CONFIG_FLASH_SPEED_BST  * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
#define flash_EBIU_AMBCTL_TT   ((CONFIG_FLASH_SPEED_BTT  * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1

#if (flash_EBIU_AMBCTL_TT > 3)
#define flash_EBIU_AMBCTL0_TT   B0TT_4
#endif
#if (flash_EBIU_AMBCTL_TT == 3)
#define flash_EBIU_AMBCTL0_TT   B0TT_3
#endif
#if (flash_EBIU_AMBCTL_TT == 2)
#define flash_EBIU_AMBCTL0_TT   B0TT_2
#endif
#if (flash_EBIU_AMBCTL_TT < 2)
#define flash_EBIU_AMBCTL0_TT   B0TT_1
#endif

#if (flash_EBIU_AMBCTL_ST > 3)
#define flash_EBIU_AMBCTL0_ST   B0ST_4
#endif
#if (flash_EBIU_AMBCTL_ST == 3)
#define flash_EBIU_AMBCTL0_ST   B0ST_3
#endif
#if (flash_EBIU_AMBCTL_ST == 2)
#define flash_EBIU_AMBCTL0_ST   B0ST_2
#endif
#if (flash_EBIU_AMBCTL_ST < 2)
#define flash_EBIU_AMBCTL0_ST   B0ST_1
#endif

#if (flash_EBIU_AMBCTL_HT > 2)
#define flash_EBIU_AMBCTL0_HT   B0HT_3
#endif
#if (flash_EBIU_AMBCTL_HT == 2)
#define flash_EBIU_AMBCTL0_HT   B0HT_2
#endif
#if (flash_EBIU_AMBCTL_HT == 1)
#define flash_EBIU_AMBCTL0_HT   B0HT_1
#endif
#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT == 0)
#define flash_EBIU_AMBCTL0_HT   B0HT_0
#endif
#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT != 0)
#define flash_EBIU_AMBCTL0_HT   B0HT_1
#endif

#if (flash_EBIU_AMBCTL_WAT > 14)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_15
#endif
#if (flash_EBIU_AMBCTL_WAT == 14)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_14
#endif
#if (flash_EBIU_AMBCTL_WAT == 13)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_13
#endif
#if (flash_EBIU_AMBCTL_WAT == 12)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_12
#endif
#if (flash_EBIU_AMBCTL_WAT == 11)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_11
#endif
#if (flash_EBIU_AMBCTL_WAT == 10)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_10
#endif
#if (flash_EBIU_AMBCTL_WAT == 9)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_9
#endif
#if (flash_EBIU_AMBCTL_WAT == 8)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_8
#endif
#if (flash_EBIU_AMBCTL_WAT == 7)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_7
#endif
#if (flash_EBIU_AMBCTL_WAT == 6)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_6
#endif
#if (flash_EBIU_AMBCTL_WAT == 5)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_5
#endif
#if (flash_EBIU_AMBCTL_WAT == 4)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_4
#endif
#if (flash_EBIU_AMBCTL_WAT == 3)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_3
#endif
#if (flash_EBIU_AMBCTL_WAT == 2)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_2
#endif
#if (flash_EBIU_AMBCTL_WAT == 1)
#define flash_EBIU_AMBCTL0_WAT  B0WAT_1
#endif

#if (flash_EBIU_AMBCTL_RAT > 14)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_15
#endif
#if (flash_EBIU_AMBCTL_RAT == 14)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_14
#endif
#if (flash_EBIU_AMBCTL_RAT == 13)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_13
#endif
#if (flash_EBIU_AMBCTL_RAT == 12)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_12
#endif
#if (flash_EBIU_AMBCTL_RAT == 11)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_11
#endif
#if (flash_EBIU_AMBCTL_RAT == 10)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_10
#endif
#if (flash_EBIU_AMBCTL_RAT == 9)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_9
#endif
#if (flash_EBIU_AMBCTL_RAT == 8)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_8
#endif
#if (flash_EBIU_AMBCTL_RAT == 7)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_7
#endif
#if (flash_EBIU_AMBCTL_RAT == 6)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_6
#endif
#if (flash_EBIU_AMBCTL_RAT == 5)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_5
#endif
#if (flash_EBIU_AMBCTL_RAT == 4)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_4
#endif
#if (flash_EBIU_AMBCTL_RAT == 3)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_3
#endif
#if (flash_EBIU_AMBCTL_RAT == 2)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_2
#endif
#if (flash_EBIU_AMBCTL_RAT == 1)
#define flash_EBIU_AMBCTL0_RAT  B0RAT_1
#endif

#define flash_EBIU_AMBCTL0  \
	(flash_EBIU_AMBCTL0_WAT | flash_EBIU_AMBCTL0_RAT | flash_EBIU_AMBCTL0_HT | \
	 flash_EBIU_AMBCTL0_ST | flash_EBIU_AMBCTL0_TT | CONFIG_FLASH_SPEED_RDYEN)