arch/arm/mach-s3c2410/include/mach/regs-mem.h

   1 /* arch/arm/mach-s3c2410/include/mach/regs-mem.h
   2  *
   3  * Copyright (c) 2004 Simtec Electronics <linux@simtec.co.uk>
   4  *              http://www.simtec.co.uk/products/SWLINUX/
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * S3C2410 Memory Control register definitions
  11 */
  12
  13 #ifndef __ASM_ARM_MEMREGS_H
  14 #define __ASM_ARM_MEMREGS_H
  15
  16 #ifndef S3C2410_MEMREG
  17 #define S3C2410_MEMREG(x) (S3C24XX_VA_MEMCTRL + (x))
  18 #endif
  19
  20 /* bus width, and wait state control */
  21 #define S3C2410_BWSCON                  S3C2410_MEMREG(0x0000)
  22
  23 /* bank zero config - note, pinstrapped from OM pins! */
  24 #define S3C2410_BWSCON_DW0_16           (1<<1)
  25 #define S3C2410_BWSCON_DW0_32           (2<<1)
  26
  27 /* bank one configs */
  28 #define S3C2410_BWSCON_DW1_8            (0<<4)
  29 #define S3C2410_BWSCON_DW1_16           (1<<4)
  30 #define S3C2410_BWSCON_DW1_32           (2<<4)
  31 #define S3C2410_BWSCON_WS1              (1<<6)
  32 #define S3C2410_BWSCON_ST1              (1<<7)
  33
  34 /* bank 2 configurations */
  35 #define S3C2410_BWSCON_DW2_8            (0<<8)
  36 #define S3C2410_BWSCON_DW2_16           (1<<8)
  37 #define S3C2410_BWSCON_DW2_32           (2<<8)
  38 #define S3C2410_BWSCON_WS2              (1<<10)
  39 #define S3C2410_BWSCON_ST2              (1<<11)
  40
  41 /* bank 3 configurations */
  42 #define S3C2410_BWSCON_DW3_8            (0<<12)
  43 #define S3C2410_BWSCON_DW3_16           (1<<12)
  44 #define S3C2410_BWSCON_DW3_32           (2<<12)
  45 #define S3C2410_BWSCON_WS3              (1<<14)
  46 #define S3C2410_BWSCON_ST3              (1<<15)
  47
  48 /* bank 4 configurations */
  49 #define S3C2410_BWSCON_DW4_8            (0<<16)
  50 #define S3C2410_BWSCON_DW4_16           (1<<16)
  51 #define S3C2410_BWSCON_DW4_32           (2<<16)
  52 #define S3C2410_BWSCON_WS4              (1<<18)
  53 #define S3C2410_BWSCON_ST4              (1<<19)
  54
  55 /* bank 5 configurations */
  56 #define S3C2410_BWSCON_DW5_8            (0<<20)
  57 #define S3C2410_BWSCON_DW5_16           (1<<20)
  58 #define S3C2410_BWSCON_DW5_32           (2<<20)
  59 #define S3C2410_BWSCON_WS5              (1<<22)
  60 #define S3C2410_BWSCON_ST5              (1<<23)
  61
  62 /* bank 6 configurations */
  63 #define S3C2410_BWSCON_DW6_8            (0<<24)
  64 #define S3C2410_BWSCON_DW6_16           (1<<24)
  65 #define S3C2410_BWSCON_DW6_32           (2<<24)
  66 #define S3C2410_BWSCON_WS6              (1<<26)
  67 #define S3C2410_BWSCON_ST6              (1<<27)
  68
  69 /* bank 7 configurations */
  70 #define S3C2410_BWSCON_DW7_8            (0<<28)
  71 #define S3C2410_BWSCON_DW7_16           (1<<28)
  72 #define S3C2410_BWSCON_DW7_32           (2<<28)
  73 #define S3C2410_BWSCON_WS7              (1<<30)
  74 #define S3C2410_BWSCON_ST7              (1<<31)
  75
  76 /* accesor functions for getting BANK(n) configuration. (n != 0) */
  77
  78 #define S3C2410_BWSCON_GET(_bwscon, _bank) (((_bwscon) >> ((_bank) * 4)) & 0xf)
  79
  80 #define S3C2410_BWSCON_DW8              (0)
  81 #define S3C2410_BWSCON_DW16             (1)
  82 #define S3C2410_BWSCON_DW32             (2)
  83 #define S3C2410_BWSCON_WS               (1 << 2)
  84 #define S3C2410_BWSCON_ST               (1 << 3)
  85
  86 /* memory set (rom, ram) */
  87 #define S3C2410_BANKCON0                S3C2410_MEMREG(0x0004)
  88 #define S3C2410_BANKCON1                S3C2410_MEMREG(0x0008)
  89 #define S3C2410_BANKCON2                S3C2410_MEMREG(0x000C)
  90 #define S3C2410_BANKCON3                S3C2410_MEMREG(0x0010)
  91 #define S3C2410_BANKCON4                S3C2410_MEMREG(0x0014)
  92 #define S3C2410_BANKCON5                S3C2410_MEMREG(0x0018)
  93 #define S3C2410_BANKCON6                S3C2410_MEMREG(0x001C)
  94 #define S3C2410_BANKCON7                S3C2410_MEMREG(0x0020)
  95
  96 /* bank configuration registers */
  97
  98 #define S3C2410_BANKCON_PMCnorm         (0x00)
  99 #define S3C2410_BANKCON_PMC4            (0x01)
 100 #define S3C2410_BANKCON_PMC8            (0x02)
 101 #define S3C2410_BANKCON_PMC16           (0x03)
 102
 103 /* bank configurations for banks 0..7, note banks
 104  * 6 and 7 have different configurations depending on
 105  * the memory type bits */
 106
 107 #define S3C2410_BANKCON_Tacp2           (0x0 << 2)
 108 #define S3C2410_BANKCON_Tacp3           (0x1 << 2)
 109 #define S3C2410_BANKCON_Tacp4           (0x2 << 2)
 110 #define S3C2410_BANKCON_Tacp6           (0x3 << 2)
 111 #define S3C2410_BANKCON_Tacp_SHIFT      (2)
 112
 113 #define S3C2410_BANKCON_Tcah0           (0x0 << 4)
 114 #define S3C2410_BANKCON_Tcah1           (0x1 << 4)
 115 #define S3C2410_BANKCON_Tcah2           (0x2 << 4)
 116 #define S3C2410_BANKCON_Tcah4           (0x3 << 4)
 117 #define S3C2410_BANKCON_Tcah_SHIFT      (4)
 118
 119 #define S3C2410_BANKCON_Tcoh0           (0x0 << 6)
 120 #define S3C2410_BANKCON_Tcoh1           (0x1 << 6)
 121 #define S3C2410_BANKCON_Tcoh2           (0x2 << 6)
 122 #define S3C2410_BANKCON_Tcoh4           (0x3 << 6)
 123 #define S3C2410_BANKCON_Tcoh_SHIFT      (6)
 124
 125 #define S3C2410_BANKCON_Tacc1           (0x0 << 8)
 126 #define S3C2410_BANKCON_Tacc2           (0x1 << 8)
 127 #define S3C2410_BANKCON_Tacc3           (0x2 << 8)
 128 #define S3C2410_BANKCON_Tacc4           (0x3 << 8)
 129 #define S3C2410_BANKCON_Tacc6           (0x4 << 8)
 130 #define S3C2410_BANKCON_Tacc8           (0x5 << 8)
 131 #define S3C2410_BANKCON_Tacc10          (0x6 << 8)
 132 #define S3C2410_BANKCON_Tacc14          (0x7 << 8)
 133 #define S3C2410_BANKCON_Tacc_SHIFT      (8)
 134
 135 #define S3C2410_BANKCON_Tcos0           (0x0 << 11)
 136 #define S3C2410_BANKCON_Tcos1           (0x1 << 11)
 137 #define S3C2410_BANKCON_Tcos2           (0x2 << 11)
 138 #define S3C2410_BANKCON_Tcos4           (0x3 << 11)
 139 #define S3C2410_BANKCON_Tcos_SHIFT      (11)
 140
 141 #define S3C2410_BANKCON_Tacs0           (0x0 << 13)
 142 #define S3C2410_BANKCON_Tacs1           (0x1 << 13)
 143 #define S3C2410_BANKCON_Tacs2           (0x2 << 13)
 144 #define S3C2410_BANKCON_Tacs4           (0x3 << 13)
 145 #define S3C2410_BANKCON_Tacs_SHIFT      (13)
 146
 147 #define S3C2410_BANKCON_SRAM            (0x0 << 15)
 148 #define S3C2410_BANKCON_SDRAM           (0x3 << 15)
 149
 150 /* next bits only for SDRAM in 6,7 */
 151 #define S3C2410_BANKCON_Trcd2           (0x00 << 2)
 152 #define S3C2410_BANKCON_Trcd3           (0x01 << 2)
 153 #define S3C2410_BANKCON_Trcd4           (0x02 << 2)
 154
 155 /* control column address select */
 156 #define S3C2410_BANKCON_SCANb8          (0x00 << 0)
 157 #define S3C2410_BANKCON_SCANb9          (0x01 << 0)
 158 #define S3C2410_BANKCON_SCANb10         (0x02 << 0)
 159
 160 #define S3C2410_REFRESH                 S3C2410_MEMREG(0x0024)
 161 #define S3C2410_BANKSIZE                S3C2410_MEMREG(0x0028)
 162 #define S3C2410_MRSRB6                  S3C2410_MEMREG(0x002C)
 163 #define S3C2410_MRSRB7                  S3C2410_MEMREG(0x0030)
 164
 165 /* refresh control */
 166
 167 #define S3C2410_REFRESH_REFEN           (1<<23)
 168 #define S3C2410_REFRESH_SELF            (1<<22)
 169 #define S3C2410_REFRESH_REFCOUNTER      ((1<<11)-1)
 170
 171 #define S3C2410_REFRESH_TRP_MASK        (3<<20)
 172 #define S3C2410_REFRESH_TRP_2clk        (0<<20)
 173 #define S3C2410_REFRESH_TRP_3clk        (1<<20)
 174 #define S3C2410_REFRESH_TRP_4clk        (2<<20)
 175
 176 #define S3C2410_REFRESH_TSRC_MASK       (3<<18)
 177 #define S3C2410_REFRESH_TSRC_4clk       (0<<18)
 178 #define S3C2410_REFRESH_TSRC_5clk       (1<<18)
 179 #define S3C2410_REFRESH_TSRC_6clk       (2<<18)
 180 #define S3C2410_REFRESH_TSRC_7clk       (3<<18)
 181
 182
 183 /* mode select register(s) */
 184
 185 #define  S3C2410_MRSRB_CL1              (0x00 << 4)
 186 #define  S3C2410_MRSRB_CL2              (0x02 << 4)
 187 #define  S3C2410_MRSRB_CL3              (0x03 << 4)
 188
 189 /* bank size register */
 190 #define S3C2410_BANKSIZE_128M           (0x2 << 0)
 191 #define S3C2410_BANKSIZE_64M            (0x1 << 0)
 192 #define S3C2410_BANKSIZE_32M            (0x0 << 0)
 193 #define S3C2410_BANKSIZE_16M            (0x7 << 0)
 194 #define S3C2410_BANKSIZE_8M             (0x6 << 0)
 195 #define S3C2410_BANKSIZE_4M             (0x5 << 0)
 196 #define S3C2410_BANKSIZE_2M             (0x4 << 0)
 197 #define S3C2410_BANKSIZE_MASK           (0x7 << 0)
 198 #define S3C2410_BANKSIZE_SCLK_EN        (1<<4)
 199 #define S3C2410_BANKSIZE_SCKE_EN        (1<<5)
 200 #define S3C2410_BANKSIZE_BURST          (1<<7)
 201
 202 #endif /* __ASM_ARM_MEMREGS_H */