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WIP FPC-III support
[linux/fpc-iii.git] / drivers / gpu / drm / radeon / radeon_clocks.c
blobc594ca68e3a70f65f5672a02f6c2d6e1729da1f6
1 /*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28
29 #include <linux/pci.h>
30
31 #include <drm/drm_device.h>
32 #include <drm/radeon_drm.h>
33
34 #include "atom.h"
35 #include "radeon.h"
36 #include "radeon_asic.h"
37 #include "radeon_reg.h"
38
39 /* 10 khz */
40 uint32_t radeon_legacy_get_engine_clock(struct radeon_device *rdev)
41 {
42 struct radeon_pll *spll = &rdev->clock.spll;
43 uint32_t fb_div, ref_div, post_div, sclk;
44
45 fb_div = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV);
46 fb_div = (fb_div >> RADEON_SPLL_FB_DIV_SHIFT) & RADEON_SPLL_FB_DIV_MASK;
47 fb_div <<= 1;
48 fb_div *= spll->reference_freq;
49
50 ref_div =
51 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK;
52
53 if (ref_div == 0)
54 return 0;
55
56 sclk = fb_div / ref_div;
57
58 post_div = RREG32_PLL(RADEON_SCLK_CNTL) & RADEON_SCLK_SRC_SEL_MASK;
59 if (post_div == 2)
60 sclk >>= 1;
61 else if (post_div == 3)
62 sclk >>= 2;
63 else if (post_div == 4)
64 sclk >>= 3;
65
66 return sclk;
67 }
68
69 /* 10 khz */
70 uint32_t radeon_legacy_get_memory_clock(struct radeon_device *rdev)
71 {
72 struct radeon_pll *mpll = &rdev->clock.mpll;
73 uint32_t fb_div, ref_div, post_div, mclk;
74
75 fb_div = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV);
76 fb_div = (fb_div >> RADEON_MPLL_FB_DIV_SHIFT) & RADEON_MPLL_FB_DIV_MASK;
77 fb_div <<= 1;
78 fb_div *= mpll->reference_freq;
79
80 ref_div =
81 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK;
82
83 if (ref_div == 0)
84 return 0;
85
86 mclk = fb_div / ref_div;
87
88 post_div = RREG32_PLL(RADEON_MCLK_CNTL) & 0x7;
89 if (post_div == 2)
90 mclk >>= 1;
91 else if (post_div == 3)
92 mclk >>= 2;
93 else if (post_div == 4)
94 mclk >>= 3;
95
96 return mclk;
97 }
98
99 #ifdef CONFIG_OF
100 /*
101 * Read XTAL (ref clock), SCLK and MCLK from Open Firmware device
102 * tree. Hopefully, ATI OF driver is kind enough to fill these
103 */
104 static bool radeon_read_clocks_OF(struct drm_device *dev)
105 {
106 struct radeon_device *rdev = dev->dev_private;
107 struct device_node *dp = rdev->pdev->dev.of_node;
108 const u32 *val;
109 struct radeon_pll *p1pll = &rdev->clock.p1pll;
110 struct radeon_pll *p2pll = &rdev->clock.p2pll;
111 struct radeon_pll *spll = &rdev->clock.spll;
112 struct radeon_pll *mpll = &rdev->clock.mpll;
113
114 if (dp == NULL)
115 return false;
116 val = of_get_property(dp, "ATY,RefCLK", NULL);
117 if (!val || !*val) {
118 pr_warn("radeonfb: No ATY,RefCLK property !\n");
119 return false;
120 }
121 p1pll->reference_freq = p2pll->reference_freq = (*val) / 10;
122 p1pll->reference_div = RREG32_PLL(RADEON_PPLL_REF_DIV) & 0x3ff;
123 if (p1pll->reference_div < 2)
124 p1pll->reference_div = 12;
125 p2pll->reference_div = p1pll->reference_div;
126
127 /* These aren't in the device-tree */
128 if (rdev->family >= CHIP_R420) {
129 p1pll->pll_in_min = 100;
130 p1pll->pll_in_max = 1350;
131 p1pll->pll_out_min = 20000;
132 p1pll->pll_out_max = 50000;
133 p2pll->pll_in_min = 100;
134 p2pll->pll_in_max = 1350;
135 p2pll->pll_out_min = 20000;
136 p2pll->pll_out_max = 50000;
137 } else {
138 p1pll->pll_in_min = 40;
139 p1pll->pll_in_max = 500;
140 p1pll->pll_out_min = 12500;
141 p1pll->pll_out_max = 35000;
142 p2pll->pll_in_min = 40;
143 p2pll->pll_in_max = 500;
144 p2pll->pll_out_min = 12500;
145 p2pll->pll_out_max = 35000;
146 }
147 /* not sure what the max should be in all cases */
148 rdev->clock.max_pixel_clock = 35000;
149
150 spll->reference_freq = mpll->reference_freq = p1pll->reference_freq;
151 spll->reference_div = mpll->reference_div =
152 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
153 RADEON_M_SPLL_REF_DIV_MASK;
154
155 val = of_get_property(dp, "ATY,SCLK", NULL);
156 if (val && *val)
157 rdev->clock.default_sclk = (*val) / 10;
158 else
159 rdev->clock.default_sclk =
160 radeon_legacy_get_engine_clock(rdev);
161
162 val = of_get_property(dp, "ATY,MCLK", NULL);
163 if (val && *val)
164 rdev->clock.default_mclk = (*val) / 10;
165 else
166 rdev->clock.default_mclk =
167 radeon_legacy_get_memory_clock(rdev);
168
169 DRM_INFO("Using device-tree clock info\n");
170
171 return true;
172 }
173 #else
174 static bool radeon_read_clocks_OF(struct drm_device *dev)
175 {
176 return false;
177 }
178 #endif /* CONFIG_OF */
179
180 void radeon_get_clock_info(struct drm_device *dev)
181 {
182 struct radeon_device *rdev = dev->dev_private;
183 struct radeon_pll *p1pll = &rdev->clock.p1pll;
184 struct radeon_pll *p2pll = &rdev->clock.p2pll;
185 struct radeon_pll *dcpll = &rdev->clock.dcpll;
186 struct radeon_pll *spll = &rdev->clock.spll;
187 struct radeon_pll *mpll = &rdev->clock.mpll;
188 int ret;
189
190 if (rdev->is_atom_bios)
191 ret = radeon_atom_get_clock_info(dev);
192 else
193 ret = radeon_combios_get_clock_info(dev);
194 if (!ret)
195 ret = radeon_read_clocks_OF(dev);
196
197 if (ret) {
198 if (p1pll->reference_div < 2) {
199 if (!ASIC_IS_AVIVO(rdev)) {
200 u32 tmp = RREG32_PLL(RADEON_PPLL_REF_DIV);
201 if (ASIC_IS_R300(rdev))
202 p1pll->reference_div =
203 (tmp & R300_PPLL_REF_DIV_ACC_MASK) >> R300_PPLL_REF_DIV_ACC_SHIFT;
204 else
205 p1pll->reference_div = tmp & RADEON_PPLL_REF_DIV_MASK;
206 if (p1pll->reference_div < 2)
207 p1pll->reference_div = 12;
208 } else
209 p1pll->reference_div = 12;
210 }
211 if (p2pll->reference_div < 2)
212 p2pll->reference_div = 12;
213 if (rdev->family < CHIP_RS600) {
214 if (spll->reference_div < 2)
215 spll->reference_div =
216 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
217 RADEON_M_SPLL_REF_DIV_MASK;
218 }
219 if (mpll->reference_div < 2)
220 mpll->reference_div = spll->reference_div;
221 } else {
222 if (ASIC_IS_AVIVO(rdev)) {
223 /* TODO FALLBACK */
224 } else {
225 DRM_INFO("Using generic clock info\n");
226
227 /* may need to be per card */
228 rdev->clock.max_pixel_clock = 35000;
229
230 if (rdev->flags & RADEON_IS_IGP) {
231 p1pll->reference_freq = 1432;
232 p2pll->reference_freq = 1432;
233 spll->reference_freq = 1432;
234 mpll->reference_freq = 1432;
235 } else {
236 p1pll->reference_freq = 2700;
237 p2pll->reference_freq = 2700;
238 spll->reference_freq = 2700;
239 mpll->reference_freq = 2700;
240 }
241 p1pll->reference_div =
242 RREG32_PLL(RADEON_PPLL_REF_DIV) & 0x3ff;
243 if (p1pll->reference_div < 2)
244 p1pll->reference_div = 12;
245 p2pll->reference_div = p1pll->reference_div;
246
247 if (rdev->family >= CHIP_R420) {
248 p1pll->pll_in_min = 100;
249 p1pll->pll_in_max = 1350;
250 p1pll->pll_out_min = 20000;
251 p1pll->pll_out_max = 50000;
252 p2pll->pll_in_min = 100;
253 p2pll->pll_in_max = 1350;
254 p2pll->pll_out_min = 20000;
255 p2pll->pll_out_max = 50000;
256 } else {
257 p1pll->pll_in_min = 40;
258 p1pll->pll_in_max = 500;
259 p1pll->pll_out_min = 12500;
260 p1pll->pll_out_max = 35000;
261 p2pll->pll_in_min = 40;
262 p2pll->pll_in_max = 500;
263 p2pll->pll_out_min = 12500;
264 p2pll->pll_out_max = 35000;
265 }
266
267 spll->reference_div =
268 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
269 RADEON_M_SPLL_REF_DIV_MASK;
270 mpll->reference_div = spll->reference_div;
271 rdev->clock.default_sclk =
272 radeon_legacy_get_engine_clock(rdev);
273 rdev->clock.default_mclk =
274 radeon_legacy_get_memory_clock(rdev);
275 }
276 }
277
278 /* pixel clocks */
279 if (ASIC_IS_AVIVO(rdev)) {
280 p1pll->min_post_div = 2;
281 p1pll->max_post_div = 0x7f;
282 p1pll->min_frac_feedback_div = 0;
283 p1pll->max_frac_feedback_div = 9;
284 p2pll->min_post_div = 2;
285 p2pll->max_post_div = 0x7f;
286 p2pll->min_frac_feedback_div = 0;
287 p2pll->max_frac_feedback_div = 9;
288 } else {
289 p1pll->min_post_div = 1;
290 p1pll->max_post_div = 16;
291 p1pll->min_frac_feedback_div = 0;
292 p1pll->max_frac_feedback_div = 0;
293 p2pll->min_post_div = 1;
294 p2pll->max_post_div = 12;
295 p2pll->min_frac_feedback_div = 0;
296 p2pll->max_frac_feedback_div = 0;
297 }
298
299 /* dcpll is DCE4 only */
300 dcpll->min_post_div = 2;
301 dcpll->max_post_div = 0x7f;
302 dcpll->min_frac_feedback_div = 0;
303 dcpll->max_frac_feedback_div = 9;
304 dcpll->min_ref_div = 2;
305 dcpll->max_ref_div = 0x3ff;
306 dcpll->min_feedback_div = 4;
307 dcpll->max_feedback_div = 0xfff;
308 dcpll->best_vco = 0;
309
310 p1pll->min_ref_div = 2;
311 p1pll->max_ref_div = 0x3ff;
312 p1pll->min_feedback_div = 4;
313 p1pll->max_feedback_div = 0x7ff;
314 p1pll->best_vco = 0;
315
316 p2pll->min_ref_div = 2;
317 p2pll->max_ref_div = 0x3ff;
318 p2pll->min_feedback_div = 4;
319 p2pll->max_feedback_div = 0x7ff;
320 p2pll->best_vco = 0;
321
322 /* system clock */
323 spll->min_post_div = 1;
324 spll->max_post_div = 1;
325 spll->min_ref_div = 2;
326 spll->max_ref_div = 0xff;
327 spll->min_feedback_div = 4;
328 spll->max_feedback_div = 0xff;
329 spll->best_vco = 0;
330
331 /* memory clock */
332 mpll->min_post_div = 1;
333 mpll->max_post_div = 1;
334 mpll->min_ref_div = 2;
335 mpll->max_ref_div = 0xff;
336 mpll->min_feedback_div = 4;
337 mpll->max_feedback_div = 0xff;
338 mpll->best_vco = 0;
339
340 if (!rdev->clock.default_sclk)
341 rdev->clock.default_sclk = radeon_get_engine_clock(rdev);
342 if ((!rdev->clock.default_mclk) && rdev->asic->pm.get_memory_clock)
343 rdev->clock.default_mclk = radeon_get_memory_clock(rdev);
344
345 rdev->pm.current_sclk = rdev->clock.default_sclk;
346 rdev->pm.current_mclk = rdev->clock.default_mclk;
347
348 }
349
350 /* 10 khz */
351 static uint32_t calc_eng_mem_clock(struct radeon_device *rdev,
352 uint32_t req_clock,
353 int *fb_div, int *post_div)
354 {
355 struct radeon_pll *spll = &rdev->clock.spll;
356 int ref_div = spll->reference_div;
357
358 if (!ref_div)
359 ref_div =
360 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
361 RADEON_M_SPLL_REF_DIV_MASK;
362
363 if (req_clock < 15000) {
364 *post_div = 8;
365 req_clock *= 8;
366 } else if (req_clock < 30000) {
367 *post_div = 4;
368 req_clock *= 4;
369 } else if (req_clock < 60000) {
370 *post_div = 2;
371 req_clock *= 2;
372 } else
373 *post_div = 1;
374
375 req_clock *= ref_div;
376 req_clock += spll->reference_freq;
377 req_clock /= (2 * spll->reference_freq);
378
379 *fb_div = req_clock & 0xff;
380
381 req_clock = (req_clock & 0xffff) << 1;
382 req_clock *= spll->reference_freq;
383 req_clock /= ref_div;
384 req_clock /= *post_div;
385
386 return req_clock;
387 }
388
389 /* 10 khz */
390 void radeon_legacy_set_engine_clock(struct radeon_device *rdev,
391 uint32_t eng_clock)
392 {
393 uint32_t tmp;
394 int fb_div, post_div;
395
396 /* XXX: wait for idle */
397
398 eng_clock = calc_eng_mem_clock(rdev, eng_clock, &fb_div, &post_div);
399
400 tmp = RREG32_PLL(RADEON_CLK_PIN_CNTL);
401 tmp &= ~RADEON_DONT_USE_XTALIN;
402 WREG32_PLL(RADEON_CLK_PIN_CNTL, tmp);
403
404 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
405 tmp &= ~RADEON_SCLK_SRC_SEL_MASK;
406 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
407
408 udelay(10);
409
410 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
411 tmp |= RADEON_SPLL_SLEEP;
412 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
413
414 udelay(2);
415
416 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
417 tmp |= RADEON_SPLL_RESET;
418 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
419
420 udelay(200);
421
422 tmp = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV);
423 tmp &= ~(RADEON_SPLL_FB_DIV_MASK << RADEON_SPLL_FB_DIV_SHIFT);
424 tmp |= (fb_div & RADEON_SPLL_FB_DIV_MASK) << RADEON_SPLL_FB_DIV_SHIFT;
425 WREG32_PLL(RADEON_M_SPLL_REF_FB_DIV, tmp);
426
427 /* XXX: verify on different asics */
428 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
429 tmp &= ~RADEON_SPLL_PVG_MASK;
430 if ((eng_clock * post_div) >= 90000)
431 tmp |= (0x7 << RADEON_SPLL_PVG_SHIFT);
432 else
433 tmp |= (0x4 << RADEON_SPLL_PVG_SHIFT);
434 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
435
436 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
437 tmp &= ~RADEON_SPLL_SLEEP;
438 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
439
440 udelay(2);
441
442 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
443 tmp &= ~RADEON_SPLL_RESET;
444 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
445
446 udelay(200);
447
448 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
449 tmp &= ~RADEON_SCLK_SRC_SEL_MASK;
450 switch (post_div) {
451 case 1:
452 default:
453 tmp |= 1;
454 break;
455 case 2:
456 tmp |= 2;
457 break;
458 case 4:
459 tmp |= 3;
460 break;
461 case 8:
462 tmp |= 4;
463 break;
464 }
465 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
466
467 udelay(20);
468
469 tmp = RREG32_PLL(RADEON_CLK_PIN_CNTL);
470 tmp |= RADEON_DONT_USE_XTALIN;
471 WREG32_PLL(RADEON_CLK_PIN_CNTL, tmp);
472
473 udelay(10);
474 }
475
476 void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable)
477 {
478 uint32_t tmp;
479
480 if (enable) {
481 if (rdev->flags & RADEON_SINGLE_CRTC) {
482 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
483 if ((RREG32(RADEON_CONFIG_CNTL) &
484 RADEON_CFG_ATI_REV_ID_MASK) >
485 RADEON_CFG_ATI_REV_A13) {
486 tmp &=
487 ~(RADEON_SCLK_FORCE_CP |
488 RADEON_SCLK_FORCE_RB);
489 }
490 tmp &=
491 ~(RADEON_SCLK_FORCE_HDP | RADEON_SCLK_FORCE_DISP1 |
492 RADEON_SCLK_FORCE_TOP | RADEON_SCLK_FORCE_SE |
493 RADEON_SCLK_FORCE_IDCT | RADEON_SCLK_FORCE_RE |
494 RADEON_SCLK_FORCE_PB | RADEON_SCLK_FORCE_TAM |
495 RADEON_SCLK_FORCE_TDM);
496 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
497 } else if (ASIC_IS_R300(rdev)) {
498 if ((rdev->family == CHIP_RS400) ||
499 (rdev->family == CHIP_RS480)) {
500 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
501 tmp &=
502 ~(RADEON_SCLK_FORCE_DISP2 |
503 RADEON_SCLK_FORCE_CP |
504 RADEON_SCLK_FORCE_HDP |
505 RADEON_SCLK_FORCE_DISP1 |
506 RADEON_SCLK_FORCE_TOP |
507 RADEON_SCLK_FORCE_E2 | R300_SCLK_FORCE_VAP
508 | RADEON_SCLK_FORCE_IDCT |
509 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR
510 | R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX
511 | R300_SCLK_FORCE_US |
512 RADEON_SCLK_FORCE_TV_SCLK |
513 R300_SCLK_FORCE_SU |
514 RADEON_SCLK_FORCE_OV0);
515 tmp |= RADEON_DYN_STOP_LAT_MASK;
516 tmp |=
517 RADEON_SCLK_FORCE_TOP |
518 RADEON_SCLK_FORCE_VIP;
519 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
520
521 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
522 tmp &= ~RADEON_SCLK_MORE_FORCEON;
523 tmp |= RADEON_SCLK_MORE_MAX_DYN_STOP_LAT;
524 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
525
526 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
527 tmp |= (RADEON_PIXCLK_ALWAYS_ONb |
528 RADEON_PIXCLK_DAC_ALWAYS_ONb);
529 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
530
531 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
532 tmp |= (RADEON_PIX2CLK_ALWAYS_ONb |
533 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
534 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
535 R300_DVOCLK_ALWAYS_ONb |
536 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
537 RADEON_PIXCLK_GV_ALWAYS_ONb |
538 R300_PIXCLK_DVO_ALWAYS_ONb |
539 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
540 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
541 R300_PIXCLK_TRANS_ALWAYS_ONb |
542 R300_PIXCLK_TVO_ALWAYS_ONb |
543 R300_P2G2CLK_ALWAYS_ONb |
544 R300_P2G2CLK_DAC_ALWAYS_ONb);
545 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
546 } else if (rdev->family >= CHIP_RV350) {
547 tmp = RREG32_PLL(R300_SCLK_CNTL2);
548 tmp &= ~(R300_SCLK_FORCE_TCL |
549 R300_SCLK_FORCE_GA |
550 R300_SCLK_FORCE_CBA);
551 tmp |= (R300_SCLK_TCL_MAX_DYN_STOP_LAT |
552 R300_SCLK_GA_MAX_DYN_STOP_LAT |
553 R300_SCLK_CBA_MAX_DYN_STOP_LAT);
554 WREG32_PLL(R300_SCLK_CNTL2, tmp);
555
556 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
557 tmp &=
558 ~(RADEON_SCLK_FORCE_DISP2 |
559 RADEON_SCLK_FORCE_CP |
560 RADEON_SCLK_FORCE_HDP |
561 RADEON_SCLK_FORCE_DISP1 |
562 RADEON_SCLK_FORCE_TOP |
563 RADEON_SCLK_FORCE_E2 | R300_SCLK_FORCE_VAP
564 | RADEON_SCLK_FORCE_IDCT |
565 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR
566 | R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX
567 | R300_SCLK_FORCE_US |
568 RADEON_SCLK_FORCE_TV_SCLK |
569 R300_SCLK_FORCE_SU |
570 RADEON_SCLK_FORCE_OV0);
571 tmp |= RADEON_DYN_STOP_LAT_MASK;
572 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
573
574 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
575 tmp &= ~RADEON_SCLK_MORE_FORCEON;
576 tmp |= RADEON_SCLK_MORE_MAX_DYN_STOP_LAT;
577 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
578
579 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
580 tmp |= (RADEON_PIXCLK_ALWAYS_ONb |
581 RADEON_PIXCLK_DAC_ALWAYS_ONb);
582 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
583
584 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
585 tmp |= (RADEON_PIX2CLK_ALWAYS_ONb |
586 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
587 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
588 R300_DVOCLK_ALWAYS_ONb |
589 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
590 RADEON_PIXCLK_GV_ALWAYS_ONb |
591 R300_PIXCLK_DVO_ALWAYS_ONb |
592 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
593 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
594 R300_PIXCLK_TRANS_ALWAYS_ONb |
595 R300_PIXCLK_TVO_ALWAYS_ONb |
596 R300_P2G2CLK_ALWAYS_ONb |
597 R300_P2G2CLK_DAC_ALWAYS_ONb);
598 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
599
600 tmp = RREG32_PLL(RADEON_MCLK_MISC);
601 tmp |= (RADEON_MC_MCLK_DYN_ENABLE |
602 RADEON_IO_MCLK_DYN_ENABLE);
603 WREG32_PLL(RADEON_MCLK_MISC, tmp);
604
605 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
606 tmp |= (RADEON_FORCEON_MCLKA |
607 RADEON_FORCEON_MCLKB);
608
609 tmp &= ~(RADEON_FORCEON_YCLKA |
610 RADEON_FORCEON_YCLKB |
611 RADEON_FORCEON_MC);
612
613 /* Some releases of vbios have set DISABLE_MC_MCLKA
614 and DISABLE_MC_MCLKB bits in the vbios table. Setting these
615 bits will cause H/W hang when reading video memory with dynamic clocking
616 enabled. */
617 if ((tmp & R300_DISABLE_MC_MCLKA) &&
618 (tmp & R300_DISABLE_MC_MCLKB)) {
619 /* If both bits are set, then check the active channels */
620 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
621 if (rdev->mc.vram_width == 64) {
622 if (RREG32(RADEON_MEM_CNTL) &
623 R300_MEM_USE_CD_CH_ONLY)
624 tmp &=
625 ~R300_DISABLE_MC_MCLKB;
626 else
627 tmp &=
628 ~R300_DISABLE_MC_MCLKA;
629 } else {
630 tmp &= ~(R300_DISABLE_MC_MCLKA |
631 R300_DISABLE_MC_MCLKB);
632 }
633 }
634
635 WREG32_PLL(RADEON_MCLK_CNTL, tmp);
636 } else {
637 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
638 tmp &= ~(R300_SCLK_FORCE_VAP);
639 tmp |= RADEON_SCLK_FORCE_CP;
640 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
641 mdelay(15);
642
643 tmp = RREG32_PLL(R300_SCLK_CNTL2);
644 tmp &= ~(R300_SCLK_FORCE_TCL |
645 R300_SCLK_FORCE_GA |
646 R300_SCLK_FORCE_CBA);
647 WREG32_PLL(R300_SCLK_CNTL2, tmp);
648 }
649 } else {
650 tmp = RREG32_PLL(RADEON_CLK_PWRMGT_CNTL);
651
652 tmp &= ~(RADEON_ACTIVE_HILO_LAT_MASK |
653 RADEON_DISP_DYN_STOP_LAT_MASK |
654 RADEON_DYN_STOP_MODE_MASK);
655
656 tmp |= (RADEON_ENGIN_DYNCLK_MODE |
657 (0x01 << RADEON_ACTIVE_HILO_LAT_SHIFT));
658 WREG32_PLL(RADEON_CLK_PWRMGT_CNTL, tmp);
659 mdelay(15);
660
661 tmp = RREG32_PLL(RADEON_CLK_PIN_CNTL);
662 tmp |= RADEON_SCLK_DYN_START_CNTL;
663 WREG32_PLL(RADEON_CLK_PIN_CNTL, tmp);
664 mdelay(15);
665
666 /* When DRI is enabled, setting DYN_STOP_LAT to zero can cause some R200
667 to lockup randomly, leave them as set by BIOS.
668 */
669 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
670 /*tmp &= RADEON_SCLK_SRC_SEL_MASK; */
671 tmp &= ~RADEON_SCLK_FORCEON_MASK;
672
673 /*RAGE_6::A11 A12 A12N1 A13, RV250::A11 A12, R300 */
674 if (((rdev->family == CHIP_RV250) &&
675 ((RREG32(RADEON_CONFIG_CNTL) &
676 RADEON_CFG_ATI_REV_ID_MASK) <
677 RADEON_CFG_ATI_REV_A13))
678 || ((rdev->family == CHIP_RV100)
679 &&
680 ((RREG32(RADEON_CONFIG_CNTL) &
681 RADEON_CFG_ATI_REV_ID_MASK) <=
682 RADEON_CFG_ATI_REV_A13))) {
683 tmp |= RADEON_SCLK_FORCE_CP;
684 tmp |= RADEON_SCLK_FORCE_VIP;
685 }
686
687 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
688
689 if ((rdev->family == CHIP_RV200) ||
690 (rdev->family == CHIP_RV250) ||
691 (rdev->family == CHIP_RV280)) {
692 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
693 tmp &= ~RADEON_SCLK_MORE_FORCEON;
694
695 /* RV200::A11 A12 RV250::A11 A12 */
696 if (((rdev->family == CHIP_RV200) ||
697 (rdev->family == CHIP_RV250)) &&
698 ((RREG32(RADEON_CONFIG_CNTL) &
699 RADEON_CFG_ATI_REV_ID_MASK) <
700 RADEON_CFG_ATI_REV_A13)) {
701 tmp |= RADEON_SCLK_MORE_FORCEON;
702 }
703 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
704 mdelay(15);
705 }
706
707 /* RV200::A11 A12, RV250::A11 A12 */
708 if (((rdev->family == CHIP_RV200) ||
709 (rdev->family == CHIP_RV250)) &&
710 ((RREG32(RADEON_CONFIG_CNTL) &
711 RADEON_CFG_ATI_REV_ID_MASK) <
712 RADEON_CFG_ATI_REV_A13)) {
713 tmp = RREG32_PLL(RADEON_PLL_PWRMGT_CNTL);
714 tmp |= RADEON_TCL_BYPASS_DISABLE;
715 WREG32_PLL(RADEON_PLL_PWRMGT_CNTL, tmp);
716 }
717 mdelay(15);
718
719 /*enable dynamic mode for display clocks (PIXCLK and PIX2CLK) */
720 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
721 tmp |= (RADEON_PIX2CLK_ALWAYS_ONb |
722 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
723 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
724 RADEON_PIXCLK_GV_ALWAYS_ONb |
725 RADEON_PIXCLK_DIG_TMDS_ALWAYS_ONb |
726 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
727 RADEON_PIXCLK_TMDS_ALWAYS_ONb);
728
729 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
730 mdelay(15);
731
732 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
733 tmp |= (RADEON_PIXCLK_ALWAYS_ONb |
734 RADEON_PIXCLK_DAC_ALWAYS_ONb);
735
736 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
737 mdelay(15);
738 }
739 } else {
740 /* Turn everything OFF (ForceON to everything) */
741 if (rdev->flags & RADEON_SINGLE_CRTC) {
742 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
743 tmp |= (RADEON_SCLK_FORCE_CP | RADEON_SCLK_FORCE_HDP |
744 RADEON_SCLK_FORCE_DISP1 | RADEON_SCLK_FORCE_TOP
745 | RADEON_SCLK_FORCE_E2 | RADEON_SCLK_FORCE_SE |
746 RADEON_SCLK_FORCE_IDCT | RADEON_SCLK_FORCE_VIP |
747 RADEON_SCLK_FORCE_RE | RADEON_SCLK_FORCE_PB |
748 RADEON_SCLK_FORCE_TAM | RADEON_SCLK_FORCE_TDM |
749 RADEON_SCLK_FORCE_RB);
750 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
751 } else if ((rdev->family == CHIP_RS400) ||
752 (rdev->family == CHIP_RS480)) {
753 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
754 tmp |= (RADEON_SCLK_FORCE_DISP2 | RADEON_SCLK_FORCE_CP |
755 RADEON_SCLK_FORCE_HDP | RADEON_SCLK_FORCE_DISP1
756 | RADEON_SCLK_FORCE_TOP | RADEON_SCLK_FORCE_E2 |
757 R300_SCLK_FORCE_VAP | RADEON_SCLK_FORCE_IDCT |
758 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR |
759 R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX |
760 R300_SCLK_FORCE_US | RADEON_SCLK_FORCE_TV_SCLK |
761 R300_SCLK_FORCE_SU | RADEON_SCLK_FORCE_OV0);
762 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
763
764 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
765 tmp |= RADEON_SCLK_MORE_FORCEON;
766 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
767
768 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
769 tmp &= ~(RADEON_PIXCLK_ALWAYS_ONb |
770 RADEON_PIXCLK_DAC_ALWAYS_ONb |
771 R300_DISP_DAC_PIXCLK_DAC_BLANK_OFF);
772 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
773
774 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
775 tmp &= ~(RADEON_PIX2CLK_ALWAYS_ONb |
776 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
777 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
778 R300_DVOCLK_ALWAYS_ONb |
779 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
780 RADEON_PIXCLK_GV_ALWAYS_ONb |
781 R300_PIXCLK_DVO_ALWAYS_ONb |
782 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
783 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
784 R300_PIXCLK_TRANS_ALWAYS_ONb |
785 R300_PIXCLK_TVO_ALWAYS_ONb |
786 R300_P2G2CLK_ALWAYS_ONb |
787 R300_P2G2CLK_DAC_ALWAYS_ONb |
788 R300_DISP_DAC_PIXCLK_DAC2_BLANK_OFF);
789 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
790 } else if (rdev->family >= CHIP_RV350) {
791 /* for RV350/M10, no delays are required. */
792 tmp = RREG32_PLL(R300_SCLK_CNTL2);
793 tmp |= (R300_SCLK_FORCE_TCL |
794 R300_SCLK_FORCE_GA | R300_SCLK_FORCE_CBA);
795 WREG32_PLL(R300_SCLK_CNTL2, tmp);
796
797 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
798 tmp |= (RADEON_SCLK_FORCE_DISP2 | RADEON_SCLK_FORCE_CP |
799 RADEON_SCLK_FORCE_HDP | RADEON_SCLK_FORCE_DISP1
800 | RADEON_SCLK_FORCE_TOP | RADEON_SCLK_FORCE_E2 |
801 R300_SCLK_FORCE_VAP | RADEON_SCLK_FORCE_IDCT |
802 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR |
803 R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX |
804 R300_SCLK_FORCE_US | RADEON_SCLK_FORCE_TV_SCLK |
805 R300_SCLK_FORCE_SU | RADEON_SCLK_FORCE_OV0);
806 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
807
808 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
809 tmp |= RADEON_SCLK_MORE_FORCEON;
810 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
811
812 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
813 tmp |= (RADEON_FORCEON_MCLKA |
814 RADEON_FORCEON_MCLKB |
815 RADEON_FORCEON_YCLKA |
816 RADEON_FORCEON_YCLKB | RADEON_FORCEON_MC);
817 WREG32_PLL(RADEON_MCLK_CNTL, tmp);
818
819 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
820 tmp &= ~(RADEON_PIXCLK_ALWAYS_ONb |
821 RADEON_PIXCLK_DAC_ALWAYS_ONb |
822 R300_DISP_DAC_PIXCLK_DAC_BLANK_OFF);
823 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
824
825 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
826 tmp &= ~(RADEON_PIX2CLK_ALWAYS_ONb |
827 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
828 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
829 R300_DVOCLK_ALWAYS_ONb |
830 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
831 RADEON_PIXCLK_GV_ALWAYS_ONb |
832 R300_PIXCLK_DVO_ALWAYS_ONb |
833 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
834 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
835 R300_PIXCLK_TRANS_ALWAYS_ONb |
836 R300_PIXCLK_TVO_ALWAYS_ONb |
837 R300_P2G2CLK_ALWAYS_ONb |
838 R300_P2G2CLK_DAC_ALWAYS_ONb |
839 R300_DISP_DAC_PIXCLK_DAC2_BLANK_OFF);
840 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
841 } else {
842 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
843 tmp |= (RADEON_SCLK_FORCE_CP | RADEON_SCLK_FORCE_E2);
844 tmp |= RADEON_SCLK_FORCE_SE;
845
846 if (rdev->flags & RADEON_SINGLE_CRTC) {
847 tmp |= (RADEON_SCLK_FORCE_RB |
848 RADEON_SCLK_FORCE_TDM |
849 RADEON_SCLK_FORCE_TAM |
850 RADEON_SCLK_FORCE_PB |
851 RADEON_SCLK_FORCE_RE |
852 RADEON_SCLK_FORCE_VIP |
853 RADEON_SCLK_FORCE_IDCT |
854 RADEON_SCLK_FORCE_TOP |
855 RADEON_SCLK_FORCE_DISP1 |
856 RADEON_SCLK_FORCE_DISP2 |
857 RADEON_SCLK_FORCE_HDP);
858 } else if ((rdev->family == CHIP_R300) ||
859 (rdev->family == CHIP_R350)) {
860 tmp |= (RADEON_SCLK_FORCE_HDP |
861 RADEON_SCLK_FORCE_DISP1 |
862 RADEON_SCLK_FORCE_DISP2 |
863 RADEON_SCLK_FORCE_TOP |
864 RADEON_SCLK_FORCE_IDCT |
865 RADEON_SCLK_FORCE_VIP);
866 }
867 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
868
869 mdelay(16);
870
871 if ((rdev->family == CHIP_R300) ||
872 (rdev->family == CHIP_R350)) {
873 tmp = RREG32_PLL(R300_SCLK_CNTL2);
874 tmp |= (R300_SCLK_FORCE_TCL |
875 R300_SCLK_FORCE_GA |
876 R300_SCLK_FORCE_CBA);
877 WREG32_PLL(R300_SCLK_CNTL2, tmp);
878 mdelay(16);
879 }
880
881 if (rdev->flags & RADEON_IS_IGP) {
882 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
883 tmp &= ~(RADEON_FORCEON_MCLKA |
884 RADEON_FORCEON_YCLKA);
885 WREG32_PLL(RADEON_MCLK_CNTL, tmp);
886 mdelay(16);
887 }
888
889 if ((rdev->family == CHIP_RV200) ||
890 (rdev->family == CHIP_RV250) ||
891 (rdev->family == CHIP_RV280)) {
892 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
893 tmp |= RADEON_SCLK_MORE_FORCEON;
894 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
895 mdelay(16);
896 }
897
898 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
899 tmp &= ~(RADEON_PIX2CLK_ALWAYS_ONb |
900 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
901 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
902 RADEON_PIXCLK_GV_ALWAYS_ONb |
903 RADEON_PIXCLK_DIG_TMDS_ALWAYS_ONb |
904 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
905 RADEON_PIXCLK_TMDS_ALWAYS_ONb);
906
907 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
908 mdelay(16);
909
910 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
911 tmp &= ~(RADEON_PIXCLK_ALWAYS_ONb |
912 RADEON_PIXCLK_DAC_ALWAYS_ONb);
913 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
914 }
915 }
916 }
917
Linux with added FPC-III support