1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * longhaul.h |
4 | * (C) 2003 Dave Jones. |
5 | * |
6 | * VIA-specific information |
7 | */ |
8 | |
9 | union msr_bcr2 { |
10 | struct { |
11 | unsigned Reseved:19, // 18:0 |
12 | ESOFTBF:1, // 19 |
13 | Reserved2:3, // 22:20 |
14 | CLOCKMUL:4, // 26:23 |
15 | Reserved3:5; // 31:27 |
16 | } bits; |
17 | unsigned long val; |
18 | }; |
19 | |
20 | union msr_longhaul { |
21 | struct { |
22 | unsigned RevisionID:4, // 3:0 |
23 | RevisionKey:4, // 7:4 |
24 | EnableSoftBusRatio:1, // 8 |
25 | EnableSoftVID:1, // 9 |
26 | EnableSoftBSEL:1, // 10 |
27 | Reserved:3, // 11:13 |
28 | SoftBusRatio4:1, // 14 |
29 | VRMRev:1, // 15 |
30 | SoftBusRatio:4, // 19:16 |
31 | SoftVID:5, // 24:20 |
32 | Reserved2:3, // 27:25 |
33 | SoftBSEL:2, // 29:28 |
34 | Reserved3:2, // 31:30 |
35 | MaxMHzBR:4, // 35:32 |
36 | MaximumVID:5, // 40:36 |
37 | MaxMHzFSB:2, // 42:41 |
38 | MaxMHzBR4:1, // 43 |
39 | Reserved4:4, // 47:44 |
40 | MinMHzBR:4, // 51:48 |
41 | MinimumVID:5, // 56:52 |
42 | MinMHzFSB:2, // 58:57 |
43 | MinMHzBR4:1, // 59 |
44 | Reserved5:4; // 63:60 |
45 | } bits; |
46 | unsigned long long val; |
47 | }; |
48 | |
49 | /* |
50 | * Clock ratio tables. Div/Mod by 10 to get ratio. |
51 | * The eblcr values specify the ratio read from the CPU. |
52 | * The mults values specify what to write to the CPU. |
53 | */ |
54 | |
55 | /* |
56 | * VIA C3 Samuel 1 & Samuel 2 (stepping 0) |
57 | */ |
58 | static const int samuel1_mults[16] = { |
59 | -1, /* 0000 -> RESERVED */ |
60 | 30, /* 0001 -> 3.0x */ |
61 | 40, /* 0010 -> 4.0x */ |
62 | -1, /* 0011 -> RESERVED */ |
63 | -1, /* 0100 -> RESERVED */ |
64 | 35, /* 0101 -> 3.5x */ |
65 | 45, /* 0110 -> 4.5x */ |
66 | 55, /* 0111 -> 5.5x */ |
67 | 60, /* 1000 -> 6.0x */ |
68 | 70, /* 1001 -> 7.0x */ |
69 | 80, /* 1010 -> 8.0x */ |
70 | 50, /* 1011 -> 5.0x */ |
71 | 65, /* 1100 -> 6.5x */ |
72 | 75, /* 1101 -> 7.5x */ |
73 | -1, /* 1110 -> RESERVED */ |
74 | -1, /* 1111 -> RESERVED */ |
75 | }; |
76 | |
77 | static const int samuel1_eblcr[16] = { |
78 | 50, /* 0000 -> RESERVED */ |
79 | 30, /* 0001 -> 3.0x */ |
80 | 40, /* 0010 -> 4.0x */ |
81 | -1, /* 0011 -> RESERVED */ |
82 | 55, /* 0100 -> 5.5x */ |
83 | 35, /* 0101 -> 3.5x */ |
84 | 45, /* 0110 -> 4.5x */ |
85 | -1, /* 0111 -> RESERVED */ |
86 | -1, /* 1000 -> RESERVED */ |
87 | 70, /* 1001 -> 7.0x */ |
88 | 80, /* 1010 -> 8.0x */ |
89 | 60, /* 1011 -> 6.0x */ |
90 | -1, /* 1100 -> RESERVED */ |
91 | 75, /* 1101 -> 7.5x */ |
92 | -1, /* 1110 -> RESERVED */ |
93 | 65, /* 1111 -> 6.5x */ |
94 | }; |
95 | |
96 | /* |
97 | * VIA C3 Samuel2 Stepping 1->15 |
98 | */ |
99 | static const int samuel2_eblcr[16] = { |
100 | 50, /* 0000 -> 5.0x */ |
101 | 30, /* 0001 -> 3.0x */ |
102 | 40, /* 0010 -> 4.0x */ |
103 | 100, /* 0011 -> 10.0x */ |
104 | 55, /* 0100 -> 5.5x */ |
105 | 35, /* 0101 -> 3.5x */ |
106 | 45, /* 0110 -> 4.5x */ |
107 | 110, /* 0111 -> 11.0x */ |
108 | 90, /* 1000 -> 9.0x */ |
109 | 70, /* 1001 -> 7.0x */ |
110 | 80, /* 1010 -> 8.0x */ |
111 | 60, /* 1011 -> 6.0x */ |
112 | 120, /* 1100 -> 12.0x */ |
113 | 75, /* 1101 -> 7.5x */ |
114 | 130, /* 1110 -> 13.0x */ |
115 | 65, /* 1111 -> 6.5x */ |
116 | }; |
117 | |
118 | /* |
119 | * VIA C3 Ezra |
120 | */ |
121 | static const int ezra_mults[16] = { |
122 | 100, /* 0000 -> 10.0x */ |
123 | 30, /* 0001 -> 3.0x */ |
124 | 40, /* 0010 -> 4.0x */ |
125 | 90, /* 0011 -> 9.0x */ |
126 | 95, /* 0100 -> 9.5x */ |
127 | 35, /* 0101 -> 3.5x */ |
128 | 45, /* 0110 -> 4.5x */ |
129 | 55, /* 0111 -> 5.5x */ |
130 | 60, /* 1000 -> 6.0x */ |
131 | 70, /* 1001 -> 7.0x */ |
132 | 80, /* 1010 -> 8.0x */ |
133 | 50, /* 1011 -> 5.0x */ |
134 | 65, /* 1100 -> 6.5x */ |
135 | 75, /* 1101 -> 7.5x */ |
136 | 85, /* 1110 -> 8.5x */ |
137 | 120, /* 1111 -> 12.0x */ |
138 | }; |
139 | |
140 | static const int ezra_eblcr[16] = { |
141 | 50, /* 0000 -> 5.0x */ |
142 | 30, /* 0001 -> 3.0x */ |
143 | 40, /* 0010 -> 4.0x */ |
144 | 100, /* 0011 -> 10.0x */ |
145 | 55, /* 0100 -> 5.5x */ |
146 | 35, /* 0101 -> 3.5x */ |
147 | 45, /* 0110 -> 4.5x */ |
148 | 95, /* 0111 -> 9.5x */ |
149 | 90, /* 1000 -> 9.0x */ |
150 | 70, /* 1001 -> 7.0x */ |
151 | 80, /* 1010 -> 8.0x */ |
152 | 60, /* 1011 -> 6.0x */ |
153 | 120, /* 1100 -> 12.0x */ |
154 | 75, /* 1101 -> 7.5x */ |
155 | 85, /* 1110 -> 8.5x */ |
156 | 65, /* 1111 -> 6.5x */ |
157 | }; |
158 | |
159 | /* |
160 | * VIA C3 (Ezra-T) [C5M]. |
161 | */ |
162 | static const int ezrat_mults[32] = { |
163 | 100, /* 0000 -> 10.0x */ |
164 | 30, /* 0001 -> 3.0x */ |
165 | 40, /* 0010 -> 4.0x */ |
166 | 90, /* 0011 -> 9.0x */ |
167 | 95, /* 0100 -> 9.5x */ |
168 | 35, /* 0101 -> 3.5x */ |
169 | 45, /* 0110 -> 4.5x */ |
170 | 55, /* 0111 -> 5.5x */ |
171 | 60, /* 1000 -> 6.0x */ |
172 | 70, /* 1001 -> 7.0x */ |
173 | 80, /* 1010 -> 8.0x */ |
174 | 50, /* 1011 -> 5.0x */ |
175 | 65, /* 1100 -> 6.5x */ |
176 | 75, /* 1101 -> 7.5x */ |
177 | 85, /* 1110 -> 8.5x */ |
178 | 120, /* 1111 -> 12.0x */ |
179 | |
180 | -1, /* 0000 -> RESERVED (10.0x) */ |
181 | 110, /* 0001 -> 11.0x */ |
182 | -1, /* 0010 -> 12.0x */ |
183 | -1, /* 0011 -> RESERVED (9.0x)*/ |
184 | 105, /* 0100 -> 10.5x */ |
185 | 115, /* 0101 -> 11.5x */ |
186 | 125, /* 0110 -> 12.5x */ |
187 | 135, /* 0111 -> 13.5x */ |
188 | 140, /* 1000 -> 14.0x */ |
189 | 150, /* 1001 -> 15.0x */ |
190 | 160, /* 1010 -> 16.0x */ |
191 | 130, /* 1011 -> 13.0x */ |
192 | 145, /* 1100 -> 14.5x */ |
193 | 155, /* 1101 -> 15.5x */ |
194 | -1, /* 1110 -> RESERVED (13.0x) */ |
195 | -1, /* 1111 -> RESERVED (12.0x) */ |
196 | }; |
197 | |
198 | static const int ezrat_eblcr[32] = { |
199 | 50, /* 0000 -> 5.0x */ |
200 | 30, /* 0001 -> 3.0x */ |
201 | 40, /* 0010 -> 4.0x */ |
202 | 100, /* 0011 -> 10.0x */ |
203 | 55, /* 0100 -> 5.5x */ |
204 | 35, /* 0101 -> 3.5x */ |
205 | 45, /* 0110 -> 4.5x */ |
206 | 95, /* 0111 -> 9.5x */ |
207 | 90, /* 1000 -> 9.0x */ |
208 | 70, /* 1001 -> 7.0x */ |
209 | 80, /* 1010 -> 8.0x */ |
210 | 60, /* 1011 -> 6.0x */ |
211 | 120, /* 1100 -> 12.0x */ |
212 | 75, /* 1101 -> 7.5x */ |
213 | 85, /* 1110 -> 8.5x */ |
214 | 65, /* 1111 -> 6.5x */ |
215 | |
216 | -1, /* 0000 -> RESERVED (9.0x) */ |
217 | 110, /* 0001 -> 11.0x */ |
218 | 120, /* 0010 -> 12.0x */ |
219 | -1, /* 0011 -> RESERVED (10.0x)*/ |
220 | 135, /* 0100 -> 13.5x */ |
221 | 115, /* 0101 -> 11.5x */ |
222 | 125, /* 0110 -> 12.5x */ |
223 | 105, /* 0111 -> 10.5x */ |
224 | 130, /* 1000 -> 13.0x */ |
225 | 150, /* 1001 -> 15.0x */ |
226 | 160, /* 1010 -> 16.0x */ |
227 | 140, /* 1011 -> 14.0x */ |
228 | -1, /* 1100 -> RESERVED (12.0x) */ |
229 | 155, /* 1101 -> 15.5x */ |
230 | -1, /* 1110 -> RESERVED (13.0x) */ |
231 | 145, /* 1111 -> 14.5x */ |
232 | }; |
233 | |
234 | /* |
235 | * VIA C3 Nehemiah */ |
236 | |
237 | static const int nehemiah_mults[32] = { |
238 | 100, /* 0000 -> 10.0x */ |
239 | -1, /* 0001 -> 16.0x */ |
240 | 40, /* 0010 -> 4.0x */ |
241 | 90, /* 0011 -> 9.0x */ |
242 | 95, /* 0100 -> 9.5x */ |
243 | -1, /* 0101 -> RESERVED */ |
244 | 45, /* 0110 -> 4.5x */ |
245 | 55, /* 0111 -> 5.5x */ |
246 | 60, /* 1000 -> 6.0x */ |
247 | 70, /* 1001 -> 7.0x */ |
248 | 80, /* 1010 -> 8.0x */ |
249 | 50, /* 1011 -> 5.0x */ |
250 | 65, /* 1100 -> 6.5x */ |
251 | 75, /* 1101 -> 7.5x */ |
252 | 85, /* 1110 -> 8.5x */ |
253 | 120, /* 1111 -> 12.0x */ |
254 | -1, /* 0000 -> 10.0x */ |
255 | 110, /* 0001 -> 11.0x */ |
256 | -1, /* 0010 -> 12.0x */ |
257 | -1, /* 0011 -> 9.0x */ |
258 | 105, /* 0100 -> 10.5x */ |
259 | 115, /* 0101 -> 11.5x */ |
260 | 125, /* 0110 -> 12.5x */ |
261 | 135, /* 0111 -> 13.5x */ |
262 | 140, /* 1000 -> 14.0x */ |
263 | 150, /* 1001 -> 15.0x */ |
264 | 160, /* 1010 -> 16.0x */ |
265 | 130, /* 1011 -> 13.0x */ |
266 | 145, /* 1100 -> 14.5x */ |
267 | 155, /* 1101 -> 15.5x */ |
268 | -1, /* 1110 -> RESERVED (13.0x) */ |
269 | -1, /* 1111 -> 12.0x */ |
270 | }; |
271 | |
272 | static const int nehemiah_eblcr[32] = { |
273 | 50, /* 0000 -> 5.0x */ |
274 | 160, /* 0001 -> 16.0x */ |
275 | 40, /* 0010 -> 4.0x */ |
276 | 100, /* 0011 -> 10.0x */ |
277 | 55, /* 0100 -> 5.5x */ |
278 | -1, /* 0101 -> RESERVED */ |
279 | 45, /* 0110 -> 4.5x */ |
280 | 95, /* 0111 -> 9.5x */ |
281 | 90, /* 1000 -> 9.0x */ |
282 | 70, /* 1001 -> 7.0x */ |
283 | 80, /* 1010 -> 8.0x */ |
284 | 60, /* 1011 -> 6.0x */ |
285 | 120, /* 1100 -> 12.0x */ |
286 | 75, /* 1101 -> 7.5x */ |
287 | 85, /* 1110 -> 8.5x */ |
288 | 65, /* 1111 -> 6.5x */ |
289 | 90, /* 0000 -> 9.0x */ |
290 | 110, /* 0001 -> 11.0x */ |
291 | 120, /* 0010 -> 12.0x */ |
292 | 100, /* 0011 -> 10.0x */ |
293 | 135, /* 0100 -> 13.5x */ |
294 | 115, /* 0101 -> 11.5x */ |
295 | 125, /* 0110 -> 12.5x */ |
296 | 105, /* 0111 -> 10.5x */ |
297 | 130, /* 1000 -> 13.0x */ |
298 | 150, /* 1001 -> 15.0x */ |
299 | 160, /* 1010 -> 16.0x */ |
300 | 140, /* 1011 -> 14.0x */ |
301 | 120, /* 1100 -> 12.0x */ |
302 | 155, /* 1101 -> 15.5x */ |
303 | -1, /* 1110 -> RESERVED (13.0x) */ |
304 | 145 /* 1111 -> 14.5x */ |
305 | }; |
306 | |
307 | /* |
308 | * Voltage scales. Div/Mod by 1000 to get actual voltage. |
309 | * Which scale to use depends on the VRM type in use. |
310 | */ |
311 | |
312 | struct mV_pos { |
313 | unsigned short mV; |
314 | unsigned short pos; |
315 | }; |
316 | |
317 | static const struct mV_pos vrm85_mV[32] = { |
318 | {1250, 8}, {1200, 6}, {1150, 4}, {1100, 2}, |
319 | {1050, 0}, {1800, 30}, {1750, 28}, {1700, 26}, |
320 | {1650, 24}, {1600, 22}, {1550, 20}, {1500, 18}, |
321 | {1450, 16}, {1400, 14}, {1350, 12}, {1300, 10}, |
322 | {1275, 9}, {1225, 7}, {1175, 5}, {1125, 3}, |
323 | {1075, 1}, {1825, 31}, {1775, 29}, {1725, 27}, |
324 | {1675, 25}, {1625, 23}, {1575, 21}, {1525, 19}, |
325 | {1475, 17}, {1425, 15}, {1375, 13}, {1325, 11} |
326 | }; |
327 | |
328 | static const unsigned char mV_vrm85[32] = { |
329 | 0x04, 0x14, 0x03, 0x13, 0x02, 0x12, 0x01, 0x11, |
330 | 0x00, 0x10, 0x0f, 0x1f, 0x0e, 0x1e, 0x0d, 0x1d, |
331 | 0x0c, 0x1c, 0x0b, 0x1b, 0x0a, 0x1a, 0x09, 0x19, |
332 | 0x08, 0x18, 0x07, 0x17, 0x06, 0x16, 0x05, 0x15 |
333 | }; |
334 | |
335 | static const struct mV_pos mobilevrm_mV[32] = { |
336 | {1750, 31}, {1700, 30}, {1650, 29}, {1600, 28}, |
337 | {1550, 27}, {1500, 26}, {1450, 25}, {1400, 24}, |
338 | {1350, 23}, {1300, 22}, {1250, 21}, {1200, 20}, |
339 | {1150, 19}, {1100, 18}, {1050, 17}, {1000, 16}, |
340 | {975, 15}, {950, 14}, {925, 13}, {900, 12}, |
341 | {875, 11}, {850, 10}, {825, 9}, {800, 8}, |
342 | {775, 7}, {750, 6}, {725, 5}, {700, 4}, |
343 | {675, 3}, {650, 2}, {625, 1}, {600, 0} |
344 | }; |
345 | |
346 | static const unsigned char mV_mobilevrm[32] = { |
347 | 0x1f, 0x1e, 0x1d, 0x1c, 0x1b, 0x1a, 0x19, 0x18, |
348 | 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, |
349 | 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08, |
350 | 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00 |
351 | }; |
352 | |
353 | |