1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
static void FreqChgCtrlWrd(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat);
static void AgesaDelay(u32 msec)
{
mct_Wait(msec*10);
}
void PrepareC_MCT(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
pDCTstat->C_MCTPtr->AgesaDelay = AgesaDelay;
pDCTstat->C_MCTPtr->PlatMaxTotalDimms = mctGet_NVbits(NV_MAX_DIMMS);
pDCTstat->C_MCTPtr->PlatMaxDimmsDct = pDCTstat->C_MCTPtr->PlatMaxTotalDimms >> 1;
}
void PrepareC_DCT(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat, u8 dct)
{
u8 dimm;
u16 DimmValid;
u16 Dimmx8Present;
dct &= 1;
pDCTstat->C_DCTPtr[dct]->DctTrain = dct;
if (dct == 1) {
Dimmx8Present = pDCTstat->Dimmx8Present >> 1;
} else
Dimmx8Present = pDCTstat->Dimmx8Present;
Dimmx8Present &= 0x55;
pDCTstat->C_DCTPtr[dct]->MaxDimmsInstalled = pDCTstat->MAdimms[dct];
DimmValid = pDCTstat->DIMMValidDCT[dct];
pDCTstat->C_DCTPtr[dct]->NodeId = pDCTstat->Node_ID;
pDCTstat->C_DCTPtr[dct]->LogicalCPUID = pDCTstat->LogicalCPUID;
for (dimm = 0; dimm < MAX_DIMMS; dimm++) {
if (DimmValid & (1 << dimm))
pDCTstat->C_DCTPtr[dct]->DimmPresent[dimm] = 1;
if (Dimmx8Present & (1 << dimm))
pDCTstat->C_DCTPtr[dct]->DimmX8Present[dimm] = 1;
}
if (pDCTstat->GangedMode & (1 << 0))
pDCTstat->C_DCTPtr[dct]->CurrDct = 0;
else
pDCTstat->C_DCTPtr[dct]->CurrDct = dct;
pDCTstat->C_DCTPtr[dct]->DctCSPresent = pDCTstat->CSPresent_DCT[dct];
if (!(pDCTstat->GangedMode & (1 << 0)) && (dct == 1))
pDCTstat->C_DCTPtr[dct]->DctCSPresent = pDCTstat->CSPresent_DCT[0];
if (pDCTstat->Status & (1 << SB_Registered)) {
pDCTstat->C_DCTPtr[dct]->Status[DCT_STATUS_REGISTERED] = 1;
pDCTstat->C_DCTPtr[dct]->Status[DCT_STATUS_OnDimmMirror] = 0;
} else {
if (pDCTstat->MirrPresU_NumRegR > 0)
pDCTstat->C_DCTPtr[dct]->Status[DCT_STATUS_OnDimmMirror] = 1;
pDCTstat->C_DCTPtr[dct]->Status[DCT_STATUS_REGISTERED] = 0;
}
pDCTstat->C_DCTPtr[dct]->RegMan1Present = pDCTstat->RegMan1Present;
for (dimm = 0; dimm < MAX_TOTAL_DIMMS; dimm++) {
u8 DimmRanks;
if (DimmValid & (1 << dimm)) {
DimmRanks = 1;
if (pDCTstat->DimmDRPresent & (1 << (dimm+dct)))
DimmRanks = 2;
else if (pDCTstat->DimmQRPresent & (1 << (dimm+dct)))
DimmRanks = 4;
} else
DimmRanks = 0;
pDCTstat->C_DCTPtr[dct]->DimmRanks[dimm] = DimmRanks;
}
}
void EnableZQcalibration(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstat)
{
u32 val;
val = Get_NB32(pDCTstat->dev_dct, 0x94);
val |= 1 << 11;
Set_NB32(pDCTstat->dev_dct, 0x94, val);
val = Get_NB32(pDCTstat->dev_dct, 0x94 + 0x100);
val |= 1 << 11;
Set_NB32(pDCTstat->dev_dct, 0x94 + 0x100, val);
}
void DisableZQcalibration(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
u32 val;
val = Get_NB32(pDCTstat->dev_dct, 0x94);
val &= ~(1 << 11);
val &= ~(1 << 10);
Set_NB32(pDCTstat->dev_dct, 0x94, val);
val = Get_NB32(pDCTstat->dev_dct, 0x94 + 0x100);
val &= ~(1 << 11);
val &= ~(1 << 10);
Set_NB32(pDCTstat->dev_dct, 0x94 + 0x100, val);
}
static void EnterSelfRefresh(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
u8 DCT0Present, DCT1Present;
u32 val;
DCT0Present = pDCTstat->DIMMValidDCT[0];
if (pDCTstat->GangedMode)
DCT1Present = 0;
else
DCT1Present = pDCTstat->DIMMValidDCT[1];
/* Program F2x[1, 0]90[EnterSelfRefresh]=1. */
if (DCT0Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x90);
val |= 1 << EnterSelfRef;
Set_NB32(pDCTstat->dev_dct, 0x90, val);
}
if (DCT1Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x90 + 0x100);
val |= 1 << EnterSelfRef;
Set_NB32(pDCTstat->dev_dct, 0x90 + 0x100, val);
}
/* Wait until the hardware resets F2x[1, 0]90[EnterSelfRefresh]=0. */
if (DCT0Present)
do {
val = Get_NB32(pDCTstat->dev_dct, 0x90);
} while (val & (1 <<EnterSelfRef));
if (DCT1Present)
do {
val = Get_NB32(pDCTstat->dev_dct, 0x90 + 0x100);
} while (val & (1 <<EnterSelfRef));
}
/*
* Change memclk for write levelization pass 2
*/
static void ChangeMemClk(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
u8 DCT0Present, DCT1Present;
u32 val;
DCT0Present = pDCTstat->DIMMValidDCT[0];
if (pDCTstat->GangedMode)
DCT1Present = 0;
else
DCT1Present = pDCTstat->DIMMValidDCT[1];
/* Program F2x[1, 0]90[EnterSelfRefresh]=1. */
if (DCT0Present) {
val = Get_NB32_index_wait(pDCTstat->dev_dct, 0x98, 8);
val |= 1 << DisAutoComp;
Set_NB32_index_wait(pDCTstat->dev_dct, 0x98, 8, val);
}
if (DCT1Present) {
val = Get_NB32_index_wait(pDCTstat->dev_dct, 0x98 + 0x100, 8);
val |= 1 << DisAutoComp;
Set_NB32_index_wait(pDCTstat->dev_dct, 0x98 + 0x100, 8, val);
}
/* Program F2x[1, 0]94[MemClkFreqVal] = 0. */
if (DCT0Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x94);
val &= ~(1 << MemClkFreqVal);
Set_NB32(pDCTstat->dev_dct, 0x94, val);
}
if (DCT1Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x94 + 0x100);
val &= ~(1 << MemClkFreqVal);
Set_NB32(pDCTstat->dev_dct, 0x94 + 0x100, val);
}
/* Program F2x[1, 0]94[MemClkFreq] to specify the target MEMCLK frequency. */
if (DCT0Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x94);
val &= 0xFFFFFFF8;
val |= pDCTstat->TargetFreq - 1;
Set_NB32(pDCTstat->dev_dct, 0x94, val);
}
if (DCT1Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x94 + 0x100);
val &= 0xFFFFFFF8;
val |= pDCTstat->TargetFreq - 1;
Set_NB32(pDCTstat->dev_dct, 0x94 + 0x100, val);
}
/* Program F2x[1, 0]94[MemClkFreqVal] = 1. */
if (DCT0Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x94);
val |= 1 << MemClkFreqVal;
Set_NB32(pDCTstat->dev_dct, 0x94, val);
}
if (DCT1Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x94 + 0x100);
val |= 1 << MemClkFreqVal;
Set_NB32(pDCTstat->dev_dct, 0x94 + 0x100, val);
}
/* Wait until F2x[1, 0]94[FreqChgInProg]=0. */
if (DCT0Present)
do {
val = Get_NB32(pDCTstat->dev_dct, 0x94);
} while (val & (1 << FreqChgInProg));
if (DCT1Present)
do {
val = Get_NB32(pDCTstat->dev_dct, 0x94 + 0x100);
} while (val & (1 << FreqChgInProg));
/* Program F2x[1, 0]94[MemClkFreqVal] = 0. */
if (DCT0Present) {
val = Get_NB32_index_wait(pDCTstat->dev_dct, 0x98, 8);
val &= ~(1 << DisAutoComp);
Set_NB32_index_wait(pDCTstat->dev_dct, 0x98, 8, val);
}
if (DCT1Present) {
val = Get_NB32_index_wait(pDCTstat->dev_dct, 0x98 + 0x100, 8);
val &= ~(1 << DisAutoComp);
Set_NB32_index_wait(pDCTstat->dev_dct, 0x98 + 0x100, 8, val);
}
}
/* Multiply the previously saved delay values in Pass 1, step #5 by
(target frequency)/400 to find the gross and fine delay initialization
values at the target frequency.
*/
void MultiplyDelay(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat, u8 dct)
{
u16 index;
u8 Multiplier;
u8 gross, fine;
u16 total;
Multiplier = pDCTstat->TargetFreq;
for (index=0; index < MAX_BYTE_LANES*MAX_LDIMMS; index ++) {
gross = pDCTstat->C_DCTPtr[dct]->WLGrossDelay[index];
fine = pDCTstat->C_DCTPtr[dct]->WLFineDelay[index];
total = gross << 5 | fine;
total *= Multiplier;
if (total % 3)
total = total / 3 + 1;
else
total = total / 3;
pDCTstat->C_DCTPtr[dct]->WLGrossDelay[index] = (total & 0xFF) >> 5;
pDCTstat->C_DCTPtr[dct]->WLFineDelay[index] = total & 0x1F;
}
}
/*
* the DRAM controller to bring the DRAMs out of self refresh mode.
*/
static void ExitSelfRefresh(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
u8 DCT0Present, DCT1Present;
u32 val;
DCT0Present = pDCTstat->DIMMValidDCT[0];
if (pDCTstat->GangedMode)
DCT1Present = 0;
else
DCT1Present = pDCTstat->DIMMValidDCT[1];
/* Program F2x[1, 0]90[ExitSelfRef]=1 for both DCTs. */
if (DCT0Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x90);
val |= 1 << ExitSelfRef;
Set_NB32(pDCTstat->dev_dct, 0x90, val);
}
if (DCT1Present) {
val = Get_NB32(pDCTstat->dev_dct, 0x90 + 0x100);
val |= 1 << ExitSelfRef;
Set_NB32(pDCTstat->dev_dct, 0x90 + 0x100, val);
}
/* Wait until the hardware resets F2x[1, 0]90[ExitSelfRef]=0. */
if (DCT0Present)
do {
val = Get_NB32(pDCTstat->dev_dct, 0x90);
} while (val & (1 << ExitSelfRef));
if (DCT1Present)
do {
val = Get_NB32(pDCTstat->dev_dct, 0x90 + 0x100);
} while (val & (1 << ExitSelfRef));
}
void SetTargetFreq(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
/* Program F2x[1,0]90[EnterSelfRefresh]=1.
* Wait until the hardware resets F2x[1,0]90[EnterSelfRefresh]=0.
*/
EnterSelfRefresh(pMCTstat, pDCTstat);
/*
* Program F2x[1,0]9C_x08[DisAutoComp]=1
* Program F2x[1,0]94[MemClkFreqVal] = 0.
* Program F2x[1,0]94[MemClkFreq] to specify the target MEMCLK frequency.
* Program F2x[1,0]94[MemClkFreqVal] = 1.
* Wait until F2x[1,0]94[FreqChgInProg]=0.
* Program F2x[1,0]9C_x08[DisAutoComp]=0
*/
ChangeMemClk(pMCTstat, pDCTstat);
/* Program F2x[1,0]90[ExitSelfRef]=1 for both DCTs.
* Wait until the hardware resets F2x[1, 0]90[ExitSelfRef]=0.
*/
ExitSelfRefresh(pMCTstat, pDCTstat);
/* wait for 500 MCLKs after ExitSelfRef, 500*2.5ns=1250ns */
mct_Wait(250);
if (pDCTstat->Status & (1 << SB_Registered)) {
/* TODO: Assuming the dct==0. The agesa here is confusing. */
FreqChgCtrlWrd(pMCTstat, pDCTstat);
}
}
static void Modify_OnDimmMirror(struct DCTStatStruc *pDCTstat, u8 dct, u8 set)
{
u32 val;
u32 reg_off = dct * 0x100 + 0x44;
while (reg_off < 0x60) {
val = Get_NB32(pDCTstat->dev_dct, reg_off);
if (val & (1 << CSEnable))
set ? (val |= 1 << onDimmMirror) : (val &= ~(1<<onDimmMirror));
Set_NB32(pDCTstat->dev_dct, reg_off, val);
reg_off += 8;
}
}
void Restore_OnDimmMirror(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
if (pDCTstat->LogicalCPUID & (AMD_DR_Bx /* | AMD_RB_C0 */)) { /* We dont support RB-C0 now */
if (pDCTstat->MirrPresU_NumRegR & 0x55)
Modify_OnDimmMirror(pDCTstat, 0, 1); /* dct=0, set */
if (pDCTstat->MirrPresU_NumRegR & 0xAA)
Modify_OnDimmMirror(pDCTstat, 1, 1); /* dct=1, set */
}
}
void Clear_OnDimmMirror(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
if (pDCTstat->LogicalCPUID & (AMD_DR_Bx /* | AMD_RB_C0 */)) { /* We dont support RB-C0 now */
if (pDCTstat->MirrPresU_NumRegR & 0x55)
Modify_OnDimmMirror(pDCTstat, 0, 0); /* dct=0, clear */
if (pDCTstat->MirrPresU_NumRegR & 0xAA)
Modify_OnDimmMirror(pDCTstat, 1, 0); /* dct=1, clear */
}
}
|