arch/i386/kernel/cpu/cpufreq/longhaul.h

   1 /*
   2  *  longhaul.h
   3  *  (C) 2003 Dave Jones.
   4  *
   5  *  Licensed under the terms of the GNU GPL License version 2.
   6  *
   7  *  VIA-specific information
   8  */
   9
  10 union msr_bcr2 {
  11         struct {
  12                 unsigned Reseved:19,    // 18:0
  13                 ESOFTBF:1,              // 19
  14                 Reserved2:3,            // 22:20
  15                 CLOCKMUL:4,             // 26:23
  16                 Reserved3:5;            // 31:27
  17         } bits;
  18         unsigned long val;
  19 };
  20
  21 union msr_longhaul {
  22         struct {
  23                 unsigned RevisionID:4,  // 3:0
  24                 RevisionKey:4,          // 7:4
  25                 EnableSoftBusRatio:1,   // 8
  26                 EnableSoftVID:1,        // 9
  27                 EnableSoftBSEL:1,       // 10
  28                 Reserved:3,             // 11:13
  29                 SoftBusRatio4:1,        // 14
  30                 VRMRev:1,               // 15
  31                 SoftBusRatio:4,         // 19:16
  32                 SoftVID:5,              // 24:20
  33                 Reserved2:3,            // 27:25
  34                 SoftBSEL:2,             // 29:28
  35                 Reserved3:2,            // 31:30
  36                 MaxMHzBR:4,             // 35:32
  37                 MaximumVID:5,           // 40:36
  38                 MaxMHzFSB:2,            // 42:41
  39                 MaxMHzBR4:1,            // 43
  40                 Reserved4:4,            // 47:44
  41                 MinMHzBR:4,             // 51:48
  42                 MinimumVID:5,           // 56:52
  43                 MinMHzFSB:2,            // 58:57
  44                 MinMHzBR4:1,            // 59
  45                 Reserved5:4;            // 63:60
  46         } bits;
  47         unsigned long long val;
  48 };
  49
  50 /*
  51  * Clock ratio tables. Div/Mod by 10 to get ratio.
  52  * The eblcr ones specify the ratio read from the CPU.
  53  * The clock_ratio ones specify what to write to the CPU.
  54  */
  55
  56 /*
  57  * VIA C3 Samuel 1  & Samuel 2 (stepping 0)
  58  */
  59 static int __initdata samuel1_clock_ratio[16] = {
  60         -1, /* 0000 -> RESERVED */
  61         30, /* 0001 ->  3.0x */
  62         40, /* 0010 ->  4.0x */
  63         -1, /* 0011 -> RESERVED */
  64         -1, /* 0100 -> RESERVED */
  65         35, /* 0101 ->  3.5x */
  66         45, /* 0110 ->  4.5x */
  67         55, /* 0111 ->  5.5x */
  68         60, /* 1000 ->  6.0x */
  69         70, /* 1001 ->  7.0x */
  70         80, /* 1010 ->  8.0x */
  71         50, /* 1011 ->  5.0x */
  72         65, /* 1100 ->  6.5x */
  73         75, /* 1101 ->  7.5x */
  74         -1, /* 1110 -> RESERVED */
  75         -1, /* 1111 -> RESERVED */
  76 };
  77
  78 static int __initdata samuel1_eblcr[16] = {
  79         50, /* 0000 -> RESERVED */
  80         30, /* 0001 ->  3.0x */
  81         40, /* 0010 ->  4.0x */
  82         -1, /* 0011 -> RESERVED */
  83         55, /* 0100 ->  5.5x */
  84         35, /* 0101 ->  3.5x */
  85         45, /* 0110 ->  4.5x */
  86         -1, /* 0111 -> RESERVED */
  87         -1, /* 1000 -> RESERVED */
  88         70, /* 1001 ->  7.0x */
  89         80, /* 1010 ->  8.0x */
  90         60, /* 1011 ->  6.0x */
  91         -1, /* 1100 -> RESERVED */
  92         75, /* 1101 ->  7.5x */
  93         -1, /* 1110 -> RESERVED */
  94         65, /* 1111 ->  6.5x */
  95 };
  96
  97 /*
  98  * VIA C3 Samuel2 Stepping 1->15
  99  */
 100 static int __initdata samuel2_eblcr[16] = {
 101         50,  /* 0000 ->  5.0x */
 102         30,  /* 0001 ->  3.0x */
 103         40,  /* 0010 ->  4.0x */
 104         100, /* 0011 -> 10.0x */
 105         55,  /* 0100 ->  5.5x */
 106         35,  /* 0101 ->  3.5x */
 107         45,  /* 0110 ->  4.5x */
 108         110, /* 0111 -> 11.0x */
 109         90,  /* 1000 ->  9.0x */
 110         70,  /* 1001 ->  7.0x */
 111         80,  /* 1010 ->  8.0x */
 112         60,  /* 1011 ->  6.0x */
 113         120, /* 1100 -> 12.0x */
 114         75,  /* 1101 ->  7.5x */
 115         130, /* 1110 -> 13.0x */
 116         65,  /* 1111 ->  6.5x */
 117 };
 118
 119 /*
 120  * VIA C3 Ezra
 121  */
 122 static int __initdata ezra_clock_ratio[16] = {
 123         100, /* 0000 -> 10.0x */
 124         30,  /* 0001 ->  3.0x */
 125         40,  /* 0010 ->  4.0x */
 126         90,  /* 0011 ->  9.0x */
 127         95,  /* 0100 ->  9.5x */
 128         35,  /* 0101 ->  3.5x */
 129         45,  /* 0110 ->  4.5x */
 130         55,  /* 0111 ->  5.5x */
 131         60,  /* 1000 ->  6.0x */
 132         70,  /* 1001 ->  7.0x */
 133         80,  /* 1010 ->  8.0x */
 134         50,  /* 1011 ->  5.0x */
 135         65,  /* 1100 ->  6.5x */
 136         75,  /* 1101 ->  7.5x */
 137         85,  /* 1110 ->  8.5x */
 138         120, /* 1111 -> 12.0x */
 139 };
 140
 141 static int __initdata ezra_eblcr[16] = {
 142         50,  /* 0000 ->  5.0x */
 143         30,  /* 0001 ->  3.0x */
 144         40,  /* 0010 ->  4.0x */
 145         100, /* 0011 -> 10.0x */
 146         55,  /* 0100 ->  5.5x */
 147         35,  /* 0101 ->  3.5x */
 148         45,  /* 0110 ->  4.5x */
 149         95,  /* 0111 ->  9.5x */
 150         90,  /* 1000 ->  9.0x */
 151         70,  /* 1001 ->  7.0x */
 152         80,  /* 1010 ->  8.0x */
 153         60,  /* 1011 ->  6.0x */
 154         120, /* 1100 -> 12.0x */
 155         75,  /* 1101 ->  7.5x */
 156         85,  /* 1110 ->  8.5x */
 157         65,  /* 1111 ->  6.5x */
 158 };
 159
 160 /*
 161  * VIA C3 (Ezra-T) [C5M].
 162  */
 163 static int __initdata ezrat_clock_ratio[32] = {
 164         100, /* 0000 -> 10.0x */
 165         30,  /* 0001 ->  3.0x */
 166         40,  /* 0010 ->  4.0x */
 167         90,  /* 0011 ->  9.0x */
 168         95,  /* 0100 ->  9.5x */
 169         35,  /* 0101 ->  3.5x */
 170         45,  /* 0110 ->  4.5x */
 171         55,  /* 0111 ->  5.5x */
 172         60,  /* 1000 ->  6.0x */
 173         70,  /* 1001 ->  7.0x */
 174         80,  /* 1010 ->  8.0x */
 175         50,  /* 1011 ->  5.0x */
 176         65,  /* 1100 ->  6.5x */
 177         75,  /* 1101 ->  7.5x */
 178         85,  /* 1110 ->  8.5x */
 179         120, /* 1111 ->  12.0x */
 180
 181         -1,  /* 0000 -> RESERVED (10.0x) */
 182         110, /* 0001 -> 11.0x */
 183         120, /* 0010 -> 12.0x */
 184         -1,  /* 0011 -> RESERVED (9.0x)*/
 185         105, /* 0100 -> 10.5x */
 186         115, /* 0101 -> 11.5x */
 187         125, /* 0110 -> 12.5x */
 188         135, /* 0111 -> 13.5x */
 189         140, /* 1000 -> 14.0x */
 190         150, /* 1001 -> 15.0x */
 191         160, /* 1010 -> 16.0x */
 192         130, /* 1011 -> 13.0x */
 193         145, /* 1100 -> 14.5x */
 194         155, /* 1101 -> 15.5x */
 195         -1,  /* 1110 -> RESERVED (13.0x) */
 196         -1,  /* 1111 -> RESERVED (12.0x) */
 197 };
 198
 199 static int __initdata ezrat_eblcr[32] = {
 200         50,  /* 0000 ->  5.0x */
 201         30,  /* 0001 ->  3.0x */
 202         40,  /* 0010 ->  4.0x */
 203         100, /* 0011 -> 10.0x */
 204         55,  /* 0100 ->  5.5x */
 205         35,  /* 0101 ->  3.5x */
 206         45,  /* 0110 ->  4.5x */
 207         95,  /* 0111 ->  9.5x */
 208         90,  /* 1000 ->  9.0x */
 209         70,  /* 1001 ->  7.0x */
 210         80,  /* 1010 ->  8.0x */
 211         60,  /* 1011 ->  6.0x */
 212         120, /* 1100 -> 12.0x */
 213         75,  /* 1101 ->  7.5x */
 214         85,  /* 1110 ->  8.5x */
 215         65,  /* 1111 ->  6.5x */
 216
 217         -1,  /* 0000 -> RESERVED (9.0x) */
 218         110, /* 0001 -> 11.0x */
 219         120, /* 0010 -> 12.0x */
 220         -1,  /* 0011 -> RESERVED (10.0x)*/
 221         135, /* 0100 -> 13.5x */
 222         115, /* 0101 -> 11.5x */
 223         125, /* 0110 -> 12.5x */
 224         105, /* 0111 -> 10.5x */
 225         130, /* 1000 -> 13.0x */
 226         150, /* 1001 -> 15.0x */
 227         160, /* 1010 -> 16.0x */
 228         140, /* 1011 -> 14.0x */
 229         -1,  /* 1100 -> RESERVED (12.0x) */
 230         155, /* 1101 -> 15.5x */
 231         -1,  /* 1110 -> RESERVED (13.0x) */
 232         145, /* 1111 -> 14.5x */
 233 };
 234
 235 /*
 236  * VIA C3 Nehemiah */
 237
 238 static int __initdata nehemiah_a_clock_ratio[32] = {
 239         100, /* 0000 -> 10.0x */
 240         160, /* 0001 -> 16.0x */
 241         -1,  /* 0010 ->  RESERVED */
 242         90,  /* 0011 ->  9.0x */
 243         95,  /* 0100 ->  9.5x */
 244         -1,  /* 0101 ->  RESERVED */
 245         -1,  /* 0110 ->  RESERVED */
 246         55,  /* 0111 ->  5.5x */
 247         60,  /* 1000 ->  6.0x */
 248         70,  /* 1001 ->  7.0x */
 249         80,  /* 1010 ->  8.0x */
 250         50,  /* 1011 ->  5.0x */
 251         65,  /* 1100 ->  6.5x */
 252         75,  /* 1101 ->  7.5x */
 253         85,  /* 1110 ->  8.5x */
 254         120, /* 1111 -> 12.0x */
 255         100, /* 0000 -> 10.0x */
 256         -1,  /* 0001 -> RESERVED */
 257         120, /* 0010 -> 12.0x */
 258         90,  /* 0011 ->  9.0x */
 259         105, /* 0100 -> 10.5x */
 260         115, /* 0101 -> 11.5x */
 261         125, /* 0110 -> 12.5x */
 262         135, /* 0111 -> 13.5x */
 263         140, /* 1000 -> 14.0x */
 264         150, /* 1001 -> 15.0x */
 265         160, /* 1010 -> 16.0x */
 266         130, /* 1011 -> 13.0x */
 267         145, /* 1100 -> 14.5x */
 268         155, /* 1101 -> 15.5x */
 269         -1,  /* 1110 -> RESERVED (13.0x) */
 270         120, /* 1111 -> 12.0x */
 271 };
 272
 273 static int __initdata  nehemiah_b_clock_ratio[32] = {
 274         100, /* 0000 -> 10.0x */
 275         160, /* 0001 -> 16.0x */
 276         -1,  /* 0010 ->  RESERVED */
 277         90,  /* 0011 ->  9.0x */
 278         95,  /* 0100 ->  9.5x */
 279         -1,  /* 0101 ->  RESERVED */
 280         -1,  /* 0110 ->  RESERVED */
 281         55,  /* 0111 ->  5.5x */
 282         60,  /* 1000 ->  6.0x */
 283         70,  /* 1001 ->  7.0x */
 284         80,  /* 1010 ->  8.0x */
 285         50,  /* 1011 ->  5.0x */
 286         65,  /* 1100 ->  6.5x */
 287         75,  /* 1101 ->  7.5x */
 288         85,  /* 1110 ->  8.5x */
 289         120, /* 1111 -> 12.0x */
 290         100, /* 0000 -> 10.0x */
 291         110, /* 0001 -> 11.0x */
 292         120, /* 0010 -> 12.0x */
 293         90,  /* 0011 ->  9.0x */
 294         105, /* 0100 -> 10.5x */
 295         115, /* 0101 -> 11.5x */
 296         125, /* 0110 -> 12.5x */
 297         135, /* 0111 -> 13.5x */
 298         140, /* 1000 -> 14.0x */
 299         150, /* 1001 -> 15.0x */
 300         160, /* 1010 -> 16.0x */
 301         130, /* 1011 -> 13.0x */
 302         145, /* 1100 -> 14.5x */
 303         155, /* 1101 -> 15.5x */
 304         -1,  /* 1110 -> RESERVED (13.0x) */
 305         120, /* 1111 -> 12.0x */
 306 };
 307
 308 static int __initdata  nehemiah_c_clock_ratio[32] = {
 309         100, /* 0000 -> 10.0x */
 310         160, /* 0001 -> 16.0x */
 311         40,  /* 0010 ->  RESERVED */
 312         90,  /* 0011 ->  9.0x */
 313         95,  /* 0100 ->  9.5x */
 314         -1,  /* 0101 ->  RESERVED */
 315         45,  /* 0110 ->  RESERVED */
 316         55,  /* 0111 ->  5.5x */
 317         60,  /* 1000 ->  6.0x */
 318         70,  /* 1001 ->  7.0x */
 319         80,  /* 1010 ->  8.0x */
 320         50,  /* 1011 ->  5.0x */
 321         65,  /* 1100 ->  6.5x */
 322         75,  /* 1101 ->  7.5x */
 323         85,  /* 1110 ->  8.5x */
 324         120, /* 1111 -> 12.0x */
 325         100, /* 0000 -> 10.0x */
 326         110, /* 0001 -> 11.0x */
 327         120, /* 0010 -> 12.0x */
 328         90,  /* 0011 ->  9.0x */
 329         105, /* 0100 -> 10.5x */
 330         115, /* 0101 -> 11.5x */
 331         125, /* 0110 -> 12.5x */
 332         135, /* 0111 -> 13.5x */
 333         140, /* 1000 -> 14.0x */
 334         150, /* 1001 -> 15.0x */
 335         160, /* 1010 -> 16.0x */
 336         130, /* 1011 -> 13.0x */
 337         145, /* 1100 -> 14.5x */
 338         155, /* 1101 -> 15.5x */
 339         -1,  /* 1110 -> RESERVED (13.0x) */
 340         120, /* 1111 -> 12.0x */
 341 };
 342
 343 static int __initdata nehemiah_a_eblcr[32] = {
 344         50,  /* 0000 ->  5.0x */
 345         160, /* 0001 -> 16.0x */
 346         -1,  /* 0010 ->  RESERVED */
 347         100, /* 0011 -> 10.0x */
 348         55,  /* 0100 ->  5.5x */
 349         -1,  /* 0101 ->  RESERVED */
 350         -1,  /* 0110 ->  RESERVED */
 351         95,  /* 0111 ->  9.5x */
 352         90,  /* 1000 ->  9.0x */
 353         70,  /* 1001 ->  7.0x */
 354         80,  /* 1010 ->  8.0x */
 355         60,  /* 1011 ->  6.0x */
 356         120, /* 1100 -> 12.0x */
 357         75,  /* 1101 ->  7.5x */
 358         85,  /* 1110 ->  8.5x */
 359         65,  /* 1111 ->  6.5x */
 360         90,  /* 0000 ->  9.0x */
 361         -1,  /* 0001 -> RESERVED */
 362         120, /* 0010 -> 12.0x */
 363         100, /* 0011 -> 10.0x */
 364         135, /* 0100 -> 13.5x */
 365         115, /* 0101 -> 11.5x */
 366         125, /* 0110 -> 12.5x */
 367         105, /* 0111 -> 10.5x */
 368         130, /* 1000 -> 13.0x */
 369         150, /* 1001 -> 15.0x */
 370         160, /* 1010 -> 16.0x */
 371         140, /* 1011 -> 14.0x */
 372         120, /* 1100 -> 12.0x */
 373         155, /* 1101 -> 15.5x */
 374         -1,  /* 1110 -> RESERVED (13.0x) */
 375         145 /* 1111 -> 14.5x */
 376    /* end of table  */
 377 };
 378 static int __initdata nehemiah_b_eblcr[32] = {
 379         50,  /* 0000 ->  5.0x */
 380         160, /* 0001 -> 16.0x */
 381         -1,  /* 0010 ->  RESERVED */
 382         100, /* 0011 -> 10.0x */
 383         55,  /* 0100 ->  5.5x */
 384         -1,  /* 0101 ->  RESERVED */
 385         -1,  /* 0110 ->  RESERVED */
 386         95,  /* 0111 ->  9.5x */
 387         90,  /* 1000 ->  9.0x */
 388         70,  /* 1001 ->  7.0x */
 389         80,  /* 1010 ->  8.0x */
 390         60,  /* 1011 ->  6.0x */
 391         120, /* 1100 -> 12.0x */
 392         75,  /* 1101 ->  7.5x */
 393         85,  /* 1110 ->  8.5x */
 394         65,  /* 1111 ->  6.5x */
 395         90,  /* 0000 ->  9.0x */
 396         110, /* 0001 -> 11.0x */
 397         120, /* 0010 -> 12.0x */
 398         100, /* 0011 -> 10.0x */
 399         135, /* 0100 -> 13.5x */
 400         115, /* 0101 -> 11.5x */
 401         125, /* 0110 -> 12.5x */
 402         105, /* 0111 -> 10.5x */
 403         130, /* 1000 -> 13.0x */
 404         150, /* 1001 -> 15.0x */
 405         160, /* 1010 -> 16.0x */
 406         140, /* 1011 -> 14.0x */
 407         120, /* 1100 -> 12.0x */
 408         155, /* 1101 -> 15.5x */
 409         -1,  /* 1110 -> RESERVED (13.0x) */
 410         145 /* 1111 -> 14.5x */
 411            /* end of table  */
 412 };
 413 static int __initdata nehemiah_c_eblcr[32] = {
 414         50,  /* 0000 ->  5.0x */
 415         160, /* 0001 -> 16.0x */
 416         40,  /* 0010 ->  RESERVED */
 417         100, /* 0011 -> 10.0x */
 418         55,  /* 0100 ->  5.5x */
 419         -1,  /* 0101 ->  RESERVED */
 420         45,  /* 0110 ->  RESERVED */
 421         95,  /* 0111 ->  9.5x */
 422         90,  /* 1000 ->  9.0x */
 423         70,  /* 1001 ->  7.0x */
 424         80,  /* 1010 ->  8.0x */
 425         60,  /* 1011 ->  6.0x */
 426         120, /* 1100 -> 12.0x */
 427         75,  /* 1101 ->  7.5x */
 428         85,  /* 1110 ->  8.5x */
 429         65,  /* 1111 ->  6.5x */
 430         90,  /* 0000 ->  9.0x */
 431         110, /* 0001 -> 11.0x */
 432         120, /* 0010 -> 12.0x */
 433         100, /* 0011 -> 10.0x */
 434         135, /* 0100 -> 13.5x */
 435         115, /* 0101 -> 11.5x */
 436         125, /* 0110 -> 12.5x */
 437         105, /* 0111 -> 10.5x */
 438         130, /* 1000 -> 13.0x */
 439         150, /* 1001 -> 15.0x */
 440         160, /* 1010 -> 16.0x */
 441         140, /* 1011 -> 14.0x */
 442         120, /* 1100 -> 12.0x */
 443         155, /* 1101 -> 15.5x */
 444         -1,  /* 1110 -> RESERVED (13.0x) */
 445         145 /* 1111 -> 14.5x */
 446           /* end of table  */
 447 };
 448
 449 /*
 450  * Voltage scales. Div/Mod by 1000 to get actual voltage.
 451  * Which scale to use depends on the VRM type in use.
 452  */
 453 static int __initdata vrm85scales[32] = {
 454         1250, 1200, 1150, 1100, 1050, 1800, 1750, 1700,
 455         1650, 1600, 1550, 1500, 1450, 1400, 1350, 1300,
 456         1275, 1225, 1175, 1125, 1075, 1825, 1775, 1725,
 457         1675, 1625, 1575, 1525, 1475, 1425, 1375, 1325,
 458 };
 459
 460 static int __initdata mobilevrmscales[32] = {
 461         2000, 1950, 1900, 1850, 1800, 1750, 1700, 1650,
 462         1600, 1550, 1500, 1450, 1500, 1350, 1300, -1,
 463         1275, 1250, 1225, 1200, 1175, 1150, 1125, 1100,
 464         1075, 1050, 1025, 1000, 975, 950, 925, -1,
 465 };
 466