Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 1 | /* |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 2 | * arch/blackfin/include/asm/mem_init.h - reprogram clocks / memory |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 3 | * |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 4 | * Copyright 2004-2008 Analog Devices Inc. |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 5 | * |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 6 | * Licensed under the GPL-2 or later. |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 9 | #if defined(EBIU_SDGCTL) |
| 10 | #if defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \ |
| 11 | defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \ |
| 12 | defined(CONFIG_MEM_MT48LC16M8A2TG_75) || \ |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 13 | defined(CONFIG_MEM_MT48LC32M8A2_75) || \ |
| 14 | defined(CONFIG_MEM_MT48LC8M32B2B5_7) || \ |
Sonic Zhang | 4934540 | 2009-01-07 23:14:38 +0800 | [diff] [blame] | 15 | defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \ |
| 16 | defined(CONFIG_MEM_MT48LC32M8A2_75) |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 17 | #if (CONFIG_SCLK_HZ > 119402985) |
| 18 | #define SDRAM_tRP TRP_2 |
| 19 | #define SDRAM_tRP_num 2 |
| 20 | #define SDRAM_tRAS TRAS_7 |
| 21 | #define SDRAM_tRAS_num 7 |
| 22 | #define SDRAM_tRCD TRCD_2 |
| 23 | #define SDRAM_tWR TWR_2 |
| 24 | #endif |
| 25 | #if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985) |
| 26 | #define SDRAM_tRP TRP_2 |
| 27 | #define SDRAM_tRP_num 2 |
| 28 | #define SDRAM_tRAS TRAS_6 |
| 29 | #define SDRAM_tRAS_num 6 |
| 30 | #define SDRAM_tRCD TRCD_2 |
| 31 | #define SDRAM_tWR TWR_2 |
| 32 | #endif |
| 33 | #if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612) |
| 34 | #define SDRAM_tRP TRP_2 |
| 35 | #define SDRAM_tRP_num 2 |
| 36 | #define SDRAM_tRAS TRAS_5 |
| 37 | #define SDRAM_tRAS_num 5 |
| 38 | #define SDRAM_tRCD TRCD_2 |
| 39 | #define SDRAM_tWR TWR_2 |
| 40 | #endif |
| 41 | #if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239) |
| 42 | #define SDRAM_tRP TRP_2 |
| 43 | #define SDRAM_tRP_num 2 |
| 44 | #define SDRAM_tRAS TRAS_4 |
| 45 | #define SDRAM_tRAS_num 4 |
| 46 | #define SDRAM_tRCD TRCD_2 |
| 47 | #define SDRAM_tWR TWR_2 |
| 48 | #endif |
| 49 | #if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866) |
| 50 | #define SDRAM_tRP TRP_2 |
| 51 | #define SDRAM_tRP_num 2 |
| 52 | #define SDRAM_tRAS TRAS_3 |
| 53 | #define SDRAM_tRAS_num 3 |
| 54 | #define SDRAM_tRCD TRCD_2 |
| 55 | #define SDRAM_tWR TWR_2 |
| 56 | #endif |
| 57 | #if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667) |
| 58 | #define SDRAM_tRP TRP_1 |
| 59 | #define SDRAM_tRP_num 1 |
| 60 | #define SDRAM_tRAS TRAS_4 |
Graf Yang | 8f580f7 | 2009-06-18 04:21:39 +0000 | [diff] [blame] | 61 | #define SDRAM_tRAS_num 4 |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 62 | #define SDRAM_tRCD TRCD_1 |
| 63 | #define SDRAM_tWR TWR_2 |
| 64 | #endif |
| 65 | #if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493) |
| 66 | #define SDRAM_tRP TRP_1 |
| 67 | #define SDRAM_tRP_num 1 |
| 68 | #define SDRAM_tRAS TRAS_3 |
| 69 | #define SDRAM_tRAS_num 3 |
| 70 | #define SDRAM_tRCD TRCD_1 |
| 71 | #define SDRAM_tWR TWR_2 |
| 72 | #endif |
| 73 | #if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119) |
| 74 | #define SDRAM_tRP TRP_1 |
| 75 | #define SDRAM_tRP_num 1 |
| 76 | #define SDRAM_tRAS TRAS_2 |
| 77 | #define SDRAM_tRAS_num 2 |
| 78 | #define SDRAM_tRCD TRCD_1 |
| 79 | #define SDRAM_tWR TWR_2 |
| 80 | #endif |
| 81 | #if (CONFIG_SCLK_HZ <= 29850746) |
| 82 | #define SDRAM_tRP TRP_1 |
| 83 | #define SDRAM_tRP_num 1 |
| 84 | #define SDRAM_tRAS TRAS_1 |
| 85 | #define SDRAM_tRAS_num 1 |
| 86 | #define SDRAM_tRCD TRCD_1 |
| 87 | #define SDRAM_tWR TWR_2 |
| 88 | #endif |
| 89 | #endif |
| 90 | |
Graf Yang | ee48efb | 2009-06-18 04:32:04 +0000 | [diff] [blame] | 91 | /* |
| 92 | * The BF526-EZ-Board changed SDRAM chips between revisions, |
| 93 | * so we use below timings to accommodate both. |
| 94 | */ |
| 95 | #if defined(CONFIG_MEM_MT48H32M16LFCJ_75) |
| 96 | #if (CONFIG_SCLK_HZ > 119402985) |
| 97 | #define SDRAM_tRP TRP_2 |
| 98 | #define SDRAM_tRP_num 2 |
| 99 | #define SDRAM_tRAS TRAS_8 |
| 100 | #define SDRAM_tRAS_num 8 |
| 101 | #define SDRAM_tRCD TRCD_2 |
| 102 | #define SDRAM_tWR TWR_2 |
| 103 | #endif |
| 104 | #if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985) |
| 105 | #define SDRAM_tRP TRP_2 |
| 106 | #define SDRAM_tRP_num 2 |
| 107 | #define SDRAM_tRAS TRAS_7 |
| 108 | #define SDRAM_tRAS_num 7 |
| 109 | #define SDRAM_tRCD TRCD_2 |
| 110 | #define SDRAM_tWR TWR_2 |
| 111 | #endif |
| 112 | #if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612) |
| 113 | #define SDRAM_tRP TRP_2 |
| 114 | #define SDRAM_tRP_num 2 |
| 115 | #define SDRAM_tRAS TRAS_6 |
| 116 | #define SDRAM_tRAS_num 6 |
| 117 | #define SDRAM_tRCD TRCD_2 |
| 118 | #define SDRAM_tWR TWR_2 |
| 119 | #endif |
| 120 | #if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239) |
| 121 | #define SDRAM_tRP TRP_2 |
| 122 | #define SDRAM_tRP_num 2 |
| 123 | #define SDRAM_tRAS TRAS_5 |
| 124 | #define SDRAM_tRAS_num 5 |
| 125 | #define SDRAM_tRCD TRCD_2 |
| 126 | #define SDRAM_tWR TWR_2 |
| 127 | #endif |
| 128 | #if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866) |
| 129 | #define SDRAM_tRP TRP_2 |
| 130 | #define SDRAM_tRP_num 2 |
| 131 | #define SDRAM_tRAS TRAS_4 |
| 132 | #define SDRAM_tRAS_num 4 |
| 133 | #define SDRAM_tRCD TRCD_2 |
| 134 | #define SDRAM_tWR TWR_2 |
| 135 | #endif |
| 136 | #if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667) |
| 137 | #define SDRAM_tRP TRP_2 |
| 138 | #define SDRAM_tRP_num 2 |
| 139 | #define SDRAM_tRAS TRAS_4 |
| 140 | #define SDRAM_tRAS_num 4 |
| 141 | #define SDRAM_tRCD TRCD_1 |
| 142 | #define SDRAM_tWR TWR_2 |
| 143 | #endif |
| 144 | #if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493) |
| 145 | #define SDRAM_tRP TRP_2 |
| 146 | #define SDRAM_tRP_num 2 |
| 147 | #define SDRAM_tRAS TRAS_3 |
| 148 | #define SDRAM_tRAS_num 3 |
| 149 | #define SDRAM_tRCD TRCD_1 |
| 150 | #define SDRAM_tWR TWR_2 |
| 151 | #endif |
| 152 | #if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119) |
| 153 | #define SDRAM_tRP TRP_1 |
| 154 | #define SDRAM_tRP_num 1 |
| 155 | #define SDRAM_tRAS TRAS_3 |
| 156 | #define SDRAM_tRAS_num 3 |
| 157 | #define SDRAM_tRCD TRCD_1 |
| 158 | #define SDRAM_tWR TWR_2 |
| 159 | #endif |
| 160 | #if (CONFIG_SCLK_HZ <= 29850746) |
| 161 | #define SDRAM_tRP TRP_1 |
| 162 | #define SDRAM_tRP_num 1 |
| 163 | #define SDRAM_tRAS TRAS_2 |
| 164 | #define SDRAM_tRAS_num 2 |
| 165 | #define SDRAM_tRCD TRCD_1 |
| 166 | #define SDRAM_tWR TWR_2 |
| 167 | #endif |
| 168 | #endif |
| 169 | |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 170 | #if defined(CONFIG_MEM_MT48LC16M8A2TG_75) || \ |
| 171 | defined(CONFIG_MEM_MT48LC8M32B2B5_7) |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 172 | /*SDRAM INFORMATION: */ |
| 173 | #define SDRAM_Tref 64 /* Refresh period in milliseconds */ |
| 174 | #define SDRAM_NRA 4096 /* Number of row addresses in SDRAM */ |
| 175 | #define SDRAM_CL CL_3 |
| 176 | #endif |
| 177 | |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 178 | #if defined(CONFIG_MEM_MT48LC32M8A2_75) || \ |
| 179 | defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \ |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 180 | defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \ |
Sonic Zhang | 4934540 | 2009-01-07 23:14:38 +0800 | [diff] [blame] | 181 | defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \ |
| 182 | defined(CONFIG_MEM_MT48LC32M8A2_75) |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 183 | /*SDRAM INFORMATION: */ |
| 184 | #define SDRAM_Tref 64 /* Refresh period in milliseconds */ |
| 185 | #define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */ |
| 186 | #define SDRAM_CL CL_3 |
| 187 | #endif |
| 188 | |
Graf Yang | ee48efb | 2009-06-18 04:32:04 +0000 | [diff] [blame] | 189 | #if defined(CONFIG_MEM_MT48H32M16LFCJ_75) |
| 190 | /*SDRAM INFORMATION: */ |
| 191 | #define SDRAM_Tref 64 /* Refresh period in milliseconds */ |
| 192 | #define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */ |
| 193 | #define SDRAM_CL CL_2 |
| 194 | #endif |
| 195 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 196 | |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 197 | #ifdef CONFIG_BFIN_KERNEL_CLOCK_MEMINIT_CALC |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 198 | /* Equation from section 17 (p17-46) of BF533 HRM */ |
| 199 | #define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num) |
| 200 | |
| 201 | /* Enable SCLK Out */ |
Michael Hennerich | 3316931 | 2009-02-04 16:49:45 +0800 | [diff] [blame] | 202 | #define mem_SDGCTL (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR | PSS) |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 203 | #else |
| 204 | #define mem_SDRRC CONFIG_MEM_SDRRC |
| 205 | #define mem_SDGCTL CONFIG_MEM_SDGCTL |
| 206 | #endif |
| 207 | #endif |
| 208 | |
| 209 | |
| 210 | #if defined(EBIU_DDRCTL0) |
| 211 | #define MIN_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000 + 1) |
| 212 | #define MAX_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000) |
| 213 | #define DDR_CLK_HZ(x) (1000*1000*1000/x) |
| 214 | |
| 215 | #if defined(CONFIG_MEM_MT46V32M16_6T) |
| 216 | #define DDR_SIZE DEVSZ_512 |
| 217 | #define DDR_WIDTH DEVWD_16 |
| 218 | #define DDR_MAX_tCK 13 |
| 219 | |
| 220 | #define DDR_tRC DDR_TRC(MIN_DDR_SCLK(60)) |
| 221 | #define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(42)) |
| 222 | #define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15)) |
| 223 | #define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(72)) |
| 224 | #define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800)) |
| 225 | |
| 226 | #define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15)) |
| 227 | #define DDR_tWTR DDR_TWTR(1) |
| 228 | #define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(12)) |
| 229 | #define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15)) |
| 230 | #endif |
| 231 | |
| 232 | #if defined(CONFIG_MEM_MT46V32M16_5B) |
| 233 | #define DDR_SIZE DEVSZ_512 |
| 234 | #define DDR_WIDTH DEVWD_16 |
| 235 | #define DDR_MAX_tCK 13 |
| 236 | |
| 237 | #define DDR_tRC DDR_TRC(MIN_DDR_SCLK(55)) |
| 238 | #define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(40)) |
| 239 | #define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15)) |
| 240 | #define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(70)) |
| 241 | #define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800)) |
| 242 | |
| 243 | #define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15)) |
| 244 | #define DDR_tWTR DDR_TWTR(2) |
| 245 | #define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(10)) |
| 246 | #define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15)) |
| 247 | #endif |
| 248 | |
Michael Hennerich | 73feb5c | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 249 | #if (CONFIG_SCLK_HZ < DDR_CLK_HZ(DDR_MAX_tCK)) |
| 250 | # error "CONFIG_SCLK_HZ is too small (<DDR_CLK_HZ(DDR_MAX_tCK) Hz)." |
| 251 | #elif(CONFIG_SCLK_HZ <= 133333333) |
| 252 | # define DDR_CL CL_2 |
| 253 | #else |
| 254 | # error "CONFIG_SCLK_HZ is too large (>133333333 Hz)." |
| 255 | #endif |
| 256 | |
| 257 | #ifdef CONFIG_BFIN_KERNEL_CLOCK_MEMINIT_CALC |
| 258 | #define mem_DDRCTL0 (DDR_tRP | DDR_tRAS | DDR_tRC | DDR_tRFC | DDR_tREFI) |
| 259 | #define mem_DDRCTL1 (DDR_DATWIDTH | EXTBANK_1 | DDR_SIZE | DDR_WIDTH | DDR_tWTR \ |
| 260 | | DDR_tMRD | DDR_tWR | DDR_tRCD) |
| 261 | #define mem_DDRCTL2 DDR_CL |
| 262 | #else |
| 263 | #define mem_DDRCTL0 CONFIG_MEM_DDRCTL0 |
| 264 | #define mem_DDRCTL1 CONFIG_MEM_DDRCTL1 |
| 265 | #define mem_DDRCTL2 CONFIG_MEM_DDRCTL2 |
| 266 | #endif |
| 267 | #endif |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 268 | |
| 269 | #if defined CONFIG_CLKIN_HALF |
| 270 | #define CLKIN_HALF 1 |
| 271 | #else |
| 272 | #define CLKIN_HALF 0 |
| 273 | #endif |
| 274 | |
| 275 | #if defined CONFIG_PLL_BYPASS |
| 276 | #define PLL_BYPASS 1 |
| 277 | #else |
| 278 | #define PLL_BYPASS 0 |
| 279 | #endif |