Commit | Line | Data |
---|---|---|
4f19048f | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
1da177e4 LT |
2 | /* |
3 | * longhaul.h | |
4 | * (C) 2003 Dave Jones. | |
5 | * | |
1da177e4 LT |
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. | |
ac617bd0 DJ |
51 | * The eblcr values specify the ratio read from the CPU. |
52 | * The mults values specify what to write to the CPU. | |
1da177e4 LT |
53 | */ |
54 | ||
55 | /* | |
56 | * VIA C3 Samuel 1 & Samuel 2 (stepping 0) | |
57 | */ | |
2760984f | 58 | static const int samuel1_mults[16] = { |
1da177e4 LT |
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 | ||
2760984f | 77 | static const int samuel1_eblcr[16] = { |
1da177e4 LT |
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 | */ | |
2760984f | 99 | static const int samuel2_eblcr[16] = { |
1da177e4 LT |
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 | */ | |
2760984f | 121 | static const int ezra_mults[16] = { |
1da177e4 LT |
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 | ||
2760984f | 140 | static const int ezra_eblcr[16] = { |
1da177e4 LT |
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 | */ | |
2760984f | 162 | static const int ezrat_mults[32] = { |
1da177e4 LT |
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 */ | |
ce243823 | 182 | -1, /* 0010 -> 12.0x */ |
1da177e4 LT |
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 | ||
2760984f | 198 | static const int ezrat_eblcr[32] = { |
1da177e4 LT |
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 */ | |
32ee8c3e | 236 | |
2760984f | 237 | static const int nehemiah_mults[32] = { |
1da177e4 | 238 | 100, /* 0000 -> 10.0x */ |
ce243823 | 239 | -1, /* 0001 -> 16.0x */ |