Gitiles
Code Review Sign In
nv-tegra.nvidia.com / linux-2.6 / 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 / . / arch / i386 / kernel / cpu / cpufreq / longhaul.h
blob: 2a495c162ec78153ccaf7e19c8188e6875f27909 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame^]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
10union 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
21union 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 */
59static 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
78static 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 */
100static 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 */
122static 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
141static 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 */
163static 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
199static 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
238static 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
273static 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
308static 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
343static 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};
378static 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};
413static 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 */
453static 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
460static 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