aboutsummaryrefslogblamecommitdiffstats
path: root/drivers/gpu/drm/radeon/radeon_combios.c
blob: 5253cbf6db1f693e8fb6843d5a6e1d0122635e3b (plain) (tree)
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
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605


















































                                                                             

                                                               


























































































































































































































































































































































































































































































































































































































































                                                                                     

                                                                                          
 




                                                                               
               










                                                                           




                                                                           

                               
                         



                                                                        












                                                                          
                                  











                                                                          
                                  
                 
                                                                     

                     



                                                                          







                                                                               
                                          






                                                                               
                                          
                         

                                                                   


                 



                                                                       









                                                                                      
                                                                    








                                                                       







                                                                                              
                                                         
                                            


                                                                  
                                            


                                                                 
                                            


                                                                   
                                            

                                                                       



                                                 


















                                                                  

                                                                  














                                                                              



                                                                   














                                                                               

                                                                      
 

                                                                          
























































                                                                               
                                                                           
                                                












                                                                                          
                                                            


                                                                                                  

                         
                
                                                          
                                                                   
         


                                                         























                                                                                                

                                                                                 
 

                                                      
              


                                         
                                                                


                                                                                
                    

 

                                                                                   





                                                      

                               
                             



                                                                          




































                                                                          
















                                                                                            






























































































                                                                                                 

                                                                             










                                                                                                 

                                                                              










                                                                                                 

                                                                             
















                                                                                                 

                                                                                           










                                                                                                 

                                                                             











                                                                                                

                                                                                












                                                                                         

                                                                              







                                                                                         

                                                                             







                                                                                        

                                                                        











                                                                                         

                                                                              











                                                                                         
                                     


                                                                      

                                                                                 







                                                                                        

                                                                        











                                                                                         

                                                                              














                                                                                         

                                                                                   







                                                                                        

                                                                        











                                                                                         

                                                                              







                                                                                         

                                                                             







                                                                                        

                                                                        















                                                                                         
                                     


                                                                      

                                                                                   







                                                                                        

                                                                        


















                                                                                         

                                                                                   







                                                                                        

                                                                        











                                                                                         

                                                                                   







                                                                                         

                                                                             







                                                                                        

                                                                        











                                                                                         

                                                                             







                                                                                         

                                                                             







                                                                                        

                                                                        











































































                                                                             







                                                                 





                                                    


                    


































                                                                                   



                                                                       
                                          









































                                                                                


                                                                           













                                                                                    

                                                                                                   























                                                                                            

                                                                                     



























                                                                                            
                                                                                           







                                                                                            
                                                                                                    





                                                                                    

                                                                                 

                                                    
                                                       
                                                                           

                                                                                           
                                                                           

                                                                                                    






                                                                                    

                                                                                 












                                                                                    

                                                                                        






























                                                                                                 

                                                                                           
                        













                                                                                                         

                                                                                     



                                                                       





























































































                                                                                                 

                                                                              








                                                                         









                                                                                              

                                                                                                
                                 





















































































































































































































































































































































































































































































































































































































                                                                                         
/*
 * Copyright 2004 ATI Technologies Inc., Markham, Ontario
 * Copyright 2007-8 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Dave Airlie
 *          Alex Deucher
 */
#include "drmP.h"
#include "radeon_drm.h"
#include "radeon.h"
#include "atom.h"

#ifdef CONFIG_PPC_PMAC
/* not sure which of these are needed */
#include <asm/machdep.h>
#include <asm/pmac_feature.h>
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#endif /* CONFIG_PPC_PMAC */

/* from radeon_encoder.c */
extern uint32_t
radeon_get_encoder_id(struct drm_device *dev, uint32_t supported_device,
		      uint8_t dac);
extern void radeon_link_encoder_connector(struct drm_device *dev);

/* from radeon_connector.c */
extern void
radeon_add_legacy_connector(struct drm_device *dev,
			    uint32_t connector_id,
			    uint32_t supported_device,
			    int connector_type,
			    struct radeon_i2c_bus_rec *i2c_bus,
			    uint16_t connector_object_id);

/* from radeon_legacy_encoder.c */
extern void
radeon_add_legacy_encoder(struct drm_device *dev, uint32_t encoder_id,
			  uint32_t supported_device);

/* old legacy ATI BIOS routines */

/* COMBIOS table offsets */
enum radeon_combios_table_offset {
	/* absolute offset tables */
	COMBIOS_ASIC_INIT_1_TABLE,
	COMBIOS_BIOS_SUPPORT_TABLE,
	COMBIOS_DAC_PROGRAMMING_TABLE,
	COMBIOS_MAX_COLOR_DEPTH_TABLE,
	COMBIOS_CRTC_INFO_TABLE,
	COMBIOS_PLL_INFO_TABLE,
	COMBIOS_TV_INFO_TABLE,
	COMBIOS_DFP_INFO_TABLE,
	COMBIOS_HW_CONFIG_INFO_TABLE,
	COMBIOS_MULTIMEDIA_INFO_TABLE,
	COMBIOS_TV_STD_PATCH_TABLE,
	COMBIOS_LCD_INFO_TABLE,
	COMBIOS_MOBILE_INFO_TABLE,
	COMBIOS_PLL_INIT_TABLE,
	COMBIOS_MEM_CONFIG_TABLE,
	COMBIOS_SAVE_MASK_TABLE,
	COMBIOS_HARDCODED_EDID_TABLE,
	COMBIOS_ASIC_INIT_2_TABLE,
	COMBIOS_CONNECTOR_INFO_TABLE,
	COMBIOS_DYN_CLK_1_TABLE,
	COMBIOS_RESERVED_MEM_TABLE,
	COMBIOS_EXT_TMDS_INFO_TABLE,
	COMBIOS_MEM_CLK_INFO_TABLE,
	COMBIOS_EXT_DAC_INFO_TABLE,
	COMBIOS_MISC_INFO_TABLE,
	COMBIOS_CRT_INFO_TABLE,
	COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE,
	COMBIOS_COMPONENT_VIDEO_INFO_TABLE,
	COMBIOS_FAN_SPEED_INFO_TABLE,
	COMBIOS_OVERDRIVE_INFO_TABLE,
	COMBIOS_OEM_INFO_TABLE,
	COMBIOS_DYN_CLK_2_TABLE,
	COMBIOS_POWER_CONNECTOR_INFO_TABLE,
	COMBIOS_I2C_INFO_TABLE,
	/* relative offset tables */
	COMBIOS_ASIC_INIT_3_TABLE,	/* offset from misc info */
	COMBIOS_ASIC_INIT_4_TABLE,	/* offset from misc info */
	COMBIOS_DETECTED_MEM_TABLE,	/* offset from misc info */
	COMBIOS_ASIC_INIT_5_TABLE,	/* offset from misc info */
	COMBIOS_RAM_RESET_TABLE,	/* offset from mem config */
	COMBIOS_POWERPLAY_INFO_TABLE,	/* offset from mobile info */
	COMBIOS_GPIO_INFO_TABLE,	/* offset from mobile info */
	COMBIOS_LCD_DDC_INFO_TABLE,	/* offset from mobile info */
	COMBIOS_TMDS_POWER_TABLE,	/* offset from mobile info */
	COMBIOS_TMDS_POWER_ON_TABLE,	/* offset from tmds power */
	COMBIOS_TMDS_POWER_OFF_TABLE,	/* offset from tmds power */
};

enum radeon_combios_ddc {
	DDC_NONE_DETECTED,
	DDC_MONID,
	DDC_DVI,
	DDC_VGA,
	DDC_CRT2,
	DDC_LCD,
	DDC_GPIO,
};

enum radeon_combios_connector {
	CONNECTOR_NONE_LEGACY,
	CONNECTOR_PROPRIETARY_LEGACY,
	CONNECTOR_CRT_LEGACY,
	CONNECTOR_DVI_I_LEGACY,
	CONNECTOR_DVI_D_LEGACY,
	CONNECTOR_CTV_LEGACY,
	CONNECTOR_STV_LEGACY,
	CONNECTOR_UNSUPPORTED_LEGACY
};

const int legacy_connector_convert[] = {
	DRM_MODE_CONNECTOR_Unknown,
	DRM_MODE_CONNECTOR_DVID,
	DRM_MODE_CONNECTOR_VGA,
	DRM_MODE_CONNECTOR_DVII,
	DRM_MODE_CONNECTOR_DVID,
	DRM_MODE_CONNECTOR_Composite,
	DRM_MODE_CONNECTOR_SVIDEO,
	DRM_MODE_CONNECTOR_Unknown,
};

static uint16_t combios_get_table_offset(struct drm_device *dev,
					 enum radeon_combios_table_offset table)
{
	struct radeon_device *rdev = dev->dev_private;
	int rev;
	uint16_t offset = 0, check_offset;

	switch (table) {
		/* absolute offset tables */
	case COMBIOS_ASIC_INIT_1_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0xc);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_BIOS_SUPPORT_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x14);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_DAC_PROGRAMMING_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x2a);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_MAX_COLOR_DEPTH_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x2c);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_CRTC_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x2e);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_PLL_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x30);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_TV_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x32);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_DFP_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x34);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_HW_CONFIG_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x36);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_MULTIMEDIA_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x38);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_TV_STD_PATCH_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x3e);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_LCD_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x40);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_MOBILE_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x42);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_PLL_INIT_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x46);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_MEM_CONFIG_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x48);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_SAVE_MASK_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x4a);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_HARDCODED_EDID_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x4c);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_ASIC_INIT_2_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x4e);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_CONNECTOR_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x50);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_DYN_CLK_1_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x52);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_RESERVED_MEM_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x54);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_EXT_TMDS_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x58);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_MEM_CLK_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x5a);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_EXT_DAC_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x5c);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_MISC_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x5e);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_CRT_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x60);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x62);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_COMPONENT_VIDEO_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x64);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_FAN_SPEED_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x66);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_OVERDRIVE_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x68);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_OEM_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x6a);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_DYN_CLK_2_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x6c);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_POWER_CONNECTOR_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x6e);
		if (check_offset)
			offset = check_offset;
		break;
	case COMBIOS_I2C_INFO_TABLE:
		check_offset = RBIOS16(rdev->bios_header_start + 0x70);
		if (check_offset)
			offset = check_offset;
		break;
		/* relative offset tables */
	case COMBIOS_ASIC_INIT_3_TABLE:	/* offset from misc info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
		if (check_offset) {
			rev = RBIOS8(check_offset);
			if (rev > 0) {
				check_offset = RBIOS16(check_offset + 0x3);
				if (check_offset)
					offset = check_offset;
			}
		}
		break;
	case COMBIOS_ASIC_INIT_4_TABLE:	/* offset from misc info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
		if (check_offset) {
			rev = RBIOS8(check_offset);
			if (rev > 0) {
				check_offset = RBIOS16(check_offset + 0x5);
				if (check_offset)
					offset = check_offset;
			}
		}
		break;
	case COMBIOS_DETECTED_MEM_TABLE:	/* offset from misc info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
		if (check_offset) {
			rev = RBIOS8(check_offset);
			if (rev > 0) {
				check_offset = RBIOS16(check_offset + 0x7);
				if (check_offset)
					offset = check_offset;
			}
		}
		break;
	case COMBIOS_ASIC_INIT_5_TABLE:	/* offset from misc info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
		if (check_offset) {
			rev = RBIOS8(check_offset);
			if (rev == 2) {
				check_offset = RBIOS16(check_offset + 0x9);
				if (check_offset)
					offset = check_offset;
			}
		}
		break;
	case COMBIOS_RAM_RESET_TABLE:	/* offset from mem config */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MEM_CONFIG_TABLE);
		if (check_offset) {
			while (RBIOS8(check_offset++));
			check_offset += 2;
			if (check_offset)
				offset = check_offset;
		}
		break;
	case COMBIOS_POWERPLAY_INFO_TABLE:	/* offset from mobile info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
		if (check_offset) {
			check_offset = RBIOS16(check_offset + 0x11);
			if (check_offset)
				offset = check_offset;
		}
		break;
	case COMBIOS_GPIO_INFO_TABLE:	/* offset from mobile info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
		if (check_offset) {
			check_offset = RBIOS16(check_offset + 0x13);
			if (check_offset)
				offset = check_offset;
		}
		break;
	case COMBIOS_LCD_DDC_INFO_TABLE:	/* offset from mobile info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
		if (check_offset) {
			check_offset = RBIOS16(check_offset + 0x15);
			if (check_offset)
				offset = check_offset;
		}
		break;
	case COMBIOS_TMDS_POWER_TABLE:	/* offset from mobile info */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
		if (check_offset) {
			check_offset = RBIOS16(check_offset + 0x17);
			if (check_offset)
				offset = check_offset;
		}
		break;
	case COMBIOS_TMDS_POWER_ON_TABLE:	/* offset from tmds power */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_TMDS_POWER_TABLE);
		if (check_offset) {
			check_offset = RBIOS16(check_offset + 0x2);
			if (check_offset)
				offset = check_offset;
		}
		break;
	case COMBIOS_TMDS_POWER_OFF_TABLE:	/* offset from tmds power */
		check_offset =
		    combios_get_table_offset(dev, COMBIOS_TMDS_POWER_TABLE);
		if (check_offset) {
			check_offset = RBIOS16(check_offset + 0x4);
			if (check_offset)
				offset = check_offset;
		}
		break;
	default:
		break;
	}

	return offset;

}

struct radeon_i2c_bus_rec combios_setup_i2c_bus(int ddc_line)
{
	struct radeon_i2c_bus_rec i2c;

	i2c.mask_clk_mask = RADEON_GPIO_EN_1;
	i2c.mask_data_mask = RADEON_GPIO_EN_0;
	i2c.a_clk_mask = RADEON_GPIO_A_1;
	i2c.a_data_mask = RADEON_GPIO_A_0;
	i2c.put_clk_mask = RADEON_GPIO_EN_1;
	i2c.put_data_mask = RADEON_GPIO_EN_0;
	i2c.get_clk_mask = RADEON_GPIO_Y_1;
	i2c.get_data_mask = RADEON_GPIO_Y_0;
	if ((ddc_line == RADEON_LCD_GPIO_MASK) ||
	    (ddc_line == RADEON_MDGPIO_EN_REG)) {
		i2c.mask_clk_reg = ddc_line;
		i2c.mask_data_reg = ddc_line;
		i2c.a_clk_reg = ddc_line;
		i2c.a_data_reg = ddc_line;
		i2c.put_clk_reg = ddc_line;
		i2c.put_data_reg = ddc_line;
		i2c.get_clk_reg = ddc_line + 4;
		i2c.get_data_reg = ddc_line + 4;
	} else {
		i2c.mask_clk_reg = ddc_line;
		i2c.mask_data_reg = ddc_line;
		i2c.a_clk_reg = ddc_line;
		i2c.a_data_reg = ddc_line;
		i2c.put_clk_reg = ddc_line;
		i2c.put_data_reg = ddc_line;
		i2c.get_clk_reg = ddc_line;
		i2c.get_data_reg = ddc_line;
	}

	if (ddc_line)
		i2c.valid = true;
	else
		i2c.valid = false;

	return i2c;
}

bool radeon_combios_get_clock_info(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	uint16_t pll_info;
	struct radeon_pll *p1pll = &rdev->clock.p1pll;
	struct radeon_pll *p2pll = &rdev->clock.p2pll;
	struct radeon_pll *spll = &rdev->clock.spll;
	struct radeon_pll *mpll = &rdev->clock.mpll;
	int8_t rev;
	uint16_t sclk, mclk;

	if (rdev->bios == NULL)
		return NULL;

	pll_info = combios_get_table_offset(dev, COMBIOS_PLL_INFO_TABLE);
	if (pll_info) {
		rev = RBIOS8(pll_info);

		/* pixel clocks */
		p1pll->reference_freq = RBIOS16(pll_info + 0xe);
		p1pll->reference_div = RBIOS16(pll_info + 0x10);
		p1pll->pll_out_min = RBIOS32(pll_info + 0x12);
		p1pll->pll_out_max = RBIOS32(pll_info + 0x16);

		if (rev > 9) {
			p1pll->pll_in_min = RBIOS32(pll_info + 0x36);
			p1pll->pll_in_max = RBIOS32(pll_info + 0x3a);
		} else {
			p1pll->pll_in_min = 40;
			p1pll->pll_in_max = 500;
		}
		*p2pll = *p1pll;

		/* system clock */
		spll->reference_freq = RBIOS16(pll_info + 0x1a);
		spll->reference_div = RBIOS16(pll_info + 0x1c);
		spll->pll_out_min = RBIOS32(pll_info + 0x1e);
		spll->pll_out_max = RBIOS32(pll_info + 0x22);

		if (rev > 10) {
			spll->pll_in_min = RBIOS32(pll_info + 0x48);
			spll->pll_in_max = RBIOS32(pll_info + 0x4c);
		} else {
			/* ??? */
			spll->pll_in_min = 40;
			spll->pll_in_max = 500;
		}

		/* memory clock */
		mpll->reference_freq = RBIOS16(pll_info + 0x26);
		mpll->reference_div = RBIOS16(pll_info + 0x28);
		mpll->pll_out_min = RBIOS32(pll_info + 0x2a);
		mpll->pll_out_max = RBIOS32(pll_info + 0x2e);

		if (rev > 10) {
			mpll->pll_in_min = RBIOS32(pll_info + 0x5a);
			mpll->pll_in_max = RBIOS32(pll_info + 0x5e);
		} else {
			/* ??? */
			mpll->pll_in_min = 40;
			mpll->pll_in_max = 500;
		}

		/* default sclk/mclk */
		sclk = RBIOS16(pll_info + 0xa);
		mclk = RBIOS16(pll_info + 0x8);
		if (sclk == 0)
			sclk = 200 * 100;
		if (mclk == 0)
			mclk = 200 * 100;

		rdev->clock.default_sclk = sclk;
		rdev->clock.default_mclk = mclk;

		return true;
	}
	return false;
}

struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct
								       radeon_encoder
								       *encoder)
{
	struct drm_device *dev = encoder->base.dev;
	struct radeon_device *rdev = dev->dev_private;
	uint16_t dac_info;
	uint8_t rev, bg, dac;
	struct radeon_encoder_primary_dac *p_dac = NULL;

	if (rdev->bios == NULL)
		return NULL;

	/* check CRT table */
	dac_info = combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
	if (dac_info) {
		p_dac =
		    kzalloc(sizeof(struct radeon_encoder_primary_dac),
			    GFP_KERNEL);

		if (!p_dac)
			return NULL;

		rev = RBIOS8(dac_info) & 0x3;
		if (rev < 2) {
			bg = RBIOS8(dac_info + 0x2) & 0xf;
			dac = (RBIOS8(dac_info + 0x2) >> 4) & 0xf;
			p_dac->ps2_pdac_adj = (bg << 8) | (dac);
		} else {
			bg = RBIOS8(dac_info + 0x2) & 0xf;
			dac = RBIOS8(dac_info + 0x3) & 0xf;
			p_dac->ps2_pdac_adj = (bg << 8) | (dac);
		}

	}

	return p_dac;
}

static enum radeon_tv_std
radeon_combios_get_tv_info(struct radeon_encoder *encoder)
{
	struct drm_device *dev = encoder->base.dev;
	struct radeon_device *rdev = dev->dev_private;
	uint16_t tv_info;
	enum radeon_tv_std tv_std = TV_STD_NTSC;

	tv_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
	if (tv_info) {
		if (RBIOS8(tv_info + 6) == 'T') {
			switch (RBIOS8(tv_info + 7) & 0xf) {
			case 1:
				tv_std = TV_STD_NTSC;
				DRM_INFO("Default TV standard: NTSC\n");
				break;
			case 2:
				tv_std = TV_STD_PAL;
				DRM_INFO("Default TV standard: PAL\n");
				break;
			case 3:
				tv_std = TV_STD_PAL_M;
				DRM_INFO("Default TV standard: PAL-M\n");
				break;
			case 4:
				tv_std = TV_STD_PAL_60;
				DRM_INFO("Default TV standard: PAL-60\n");
				break;
			case 5:
				tv_std = TV_STD_NTSC_J;
				DRM_INFO("Default TV standard: NTSC-J\n");
				break;
			case 6:
				tv_std = TV_STD_SCART_PAL;
				DRM_INFO("Default TV standard: SCART-PAL\n");
				break;
			default:
				tv_std = TV_STD_NTSC;
				DRM_INFO
				    ("Unknown TV standard; defaulting to NTSC\n");
				break;
			}

			switch ((RBIOS8(tv_info + 9) >> 2) & 0x3) {
			case 0:
				DRM_INFO("29.498928713 MHz TV ref clk\n");
				break;
			case 1:
				DRM_INFO("28.636360000 MHz TV ref clk\n");
				break;
			case 2:
				DRM_INFO("14.318180000 MHz TV ref clk\n");
				break;
			case 3:
				DRM_INFO("27.000000000 MHz TV ref clk\n");
				break;
			default:
				break;
			}
		}
	}
	return tv_std;
}

static const uint32_t default_tvdac_adj[CHIP_LAST] = {
	0x00000000,		/* r100  */
	0x00280000,		/* rv100 */
	0x00000000,		/* rs100 */
	0x00880000,		/* rv200 */
	0x00000000,		/* rs200 */
	0x00000000,		/* r200  */
	0x00770000,		/* rv250 */
	0x00290000,		/* rs300 */
	0x00560000,		/* rv280 */
	0x00780000,		/* r300  */
	0x00770000,		/* r350  */
	0x00780000,		/* rv350 */
	0x00780000,		/* rv380 */
	0x01080000,		/* r420  */
	0x01080000,		/* r423  */
	0x01080000,		/* rv410 */
	0x00780000,		/* rs400 */
	0x00780000,		/* rs480 */
};

static void radeon_legacy_get_tv_dac_info_from_table(struct radeon_device *rdev,
						     struct radeon_encoder_tv_dac *tv_dac)
{
	tv_dac->ps2_tvdac_adj = default_tvdac_adj[rdev->family];
	if ((rdev->flags & RADEON_IS_MOBILITY) && (rdev->family == CHIP_RV250))
		tv_dac->ps2_tvdac_adj = 0x00880000;
	tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
	tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
	return;
}

struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
							     radeon_encoder
							     *encoder)
{
	struct drm_device *dev = encoder->base.dev;
	struct radeon_device *rdev = dev->dev_private;
	uint16_t dac_info;
	uint8_t rev, bg, dac;
	struct radeon_encoder_tv_dac *tv_dac = NULL;
	int found = 0;

	tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL);
	if (!tv_dac)
		return NULL;

	if (rdev->bios == NULL)
		goto out;

	/* first check TV table */
	dac_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
	if (dac_info) {
		rev = RBIOS8(dac_info + 0x3);
		if (rev > 4) {
			bg = RBIOS8(dac_info + 0xc) & 0xf;
			dac = RBIOS8(dac_info + 0xd) & 0xf;
			tv_dac->ps2_tvdac_adj = (bg << 16) | (dac << 20);

			bg = RBIOS8(dac_info + 0xe) & 0xf;
			dac = RBIOS8(dac_info + 0xf) & 0xf;
			tv_dac->pal_tvdac_adj = (bg << 16) | (dac << 20);

			bg = RBIOS8(dac_info + 0x10) & 0xf;
			dac = RBIOS8(dac_info + 0x11) & 0xf;
			tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
			found = 1;
		} else if (rev > 1) {
			bg = RBIOS8(dac_info + 0xc) & 0xf;
			dac = (RBIOS8(dac_info + 0xc) >> 4) & 0xf;
			tv_dac->ps2_tvdac_adj = (bg << 16) | (dac << 20);

			bg = RBIOS8(dac_info + 0xd) & 0xf;
			dac = (RBIOS8(dac_info + 0xd) >> 4) & 0xf;
			tv_dac->pal_tvdac_adj = (bg << 16) | (dac << 20);

			bg = RBIOS8(dac_info + 0xe) & 0xf;
			dac = (RBIOS8(dac_info + 0xe) >> 4) & 0xf;
			tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
			found = 1;
		}
		tv_dac->tv_std = radeon_combios_get_tv_info(encoder);
	}
	if (!found) {
		/* then check CRT table */
		dac_info =
		    combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
		if (dac_info) {
			rev = RBIOS8(dac_info) & 0x3;
			if (rev < 2) {
				bg = RBIOS8(dac_info + 0x3) & 0xf;
				dac = (RBIOS8(dac_info + 0x3) >> 4) & 0xf;
				tv_dac->ps2_tvdac_adj =
				    (bg << 16) | (dac << 20);
				tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
				tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
				found = 1;
			} else {
				bg = RBIOS8(dac_info + 0x4) & 0xf;
				dac = RBIOS8(dac_info + 0x5) & 0xf;
				tv_dac->ps2_tvdac_adj =
				    (bg << 16) | (dac << 20);
				tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
				tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
				found = 1;
			}
		} else {
			DRM_INFO("No TV DAC info found in BIOS\n");
		}
	}

out:
	if (!found) /* fallback to defaults */
		radeon_legacy_get_tv_dac_info_from_table(rdev, tv_dac);

	return tv_dac;
}

static struct radeon_encoder_lvds *radeon_legacy_get_lvds_info_from_regs(struct
									 radeon_device
									 *rdev)
{
	struct radeon_encoder_lvds *lvds = NULL;
	uint32_t fp_vert_stretch, fp_horz_stretch;
	uint32_t ppll_div_sel, ppll_val;
	uint32_t lvds_ss_gen_cntl = RREG32(RADEON_LVDS_SS_GEN_CNTL);

	lvds = kzalloc(sizeof(struct radeon_encoder_lvds), GFP_KERNEL);

	if (!lvds)
		return NULL;

	fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH);
	fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH);

	/* These should be fail-safe defaults, fingers crossed */
	lvds->panel_pwr_delay = 200;
	lvds->panel_vcc_delay = 2000;

	lvds->lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
	lvds->panel_digon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY1_SHIFT) & 0xf;
	lvds->panel_blon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY2_SHIFT) & 0xf;

	if (fp_vert_stretch & RADEON_VERT_STRETCH_ENABLE)
		lvds->native_mode.vdisplay =
		    ((fp_vert_stretch & RADEON_VERT_PANEL_SIZE) >>
		     RADEON_VERT_PANEL_SHIFT) + 1;
	else
		lvds->native_mode.vdisplay =
		    (RREG32(RADEON_CRTC_V_TOTAL_DISP) >> 16) + 1;

	if (fp_horz_stretch & RADEON_HORZ_STRETCH_ENABLE)
		lvds->native_mode.hdisplay =
		    (((fp_horz_stretch & RADEON_HORZ_PANEL_SIZE) >>
		      RADEON_HORZ_PANEL_SHIFT) + 1) * 8;
	else
		lvds->native_mode.hdisplay =
		    ((RREG32(RADEON_CRTC_H_TOTAL_DISP) >> 16) + 1) * 8;

	if ((lvds->native_mode.hdisplay < 640) ||
	    (lvds->native_mode.vdisplay < 480)) {
		lvds->native_mode.hdisplay = 640;
		lvds->native_mode.vdisplay = 480;
	}

	ppll_div_sel = RREG8(RADEON_CLOCK_CNTL_INDEX + 1) & 0x3;
	ppll_val = RREG32_PLL(RADEON_PPLL_DIV_0 + ppll_div_sel);
	if ((ppll_val & 0x000707ff) == 0x1bb)
		lvds->use_bios_dividers = false;
	else {
		lvds->panel_ref_divider =
		    RREG32_PLL(RADEON_PPLL_REF_DIV) & 0x3ff;
		lvds->panel_post_divider = (ppll_val >> 16) & 0x7;
		lvds->panel_fb_divider = ppll_val & 0x7ff;

		if ((lvds->panel_ref_divider != 0) &&
		    (lvds->panel_fb_divider > 3))
			lvds->use_bios_dividers = true;
	}
	lvds->panel_vcc_delay = 200;

	DRM_INFO("Panel info derived from registers\n");
	DRM_INFO("Panel Size %dx%d\n", lvds->native_mode.hdisplay,
		 lvds->native_mode.vdisplay);

	return lvds;
}

struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
							 *encoder)
{
	struct drm_device *dev = encoder->base.dev;
	struct radeon_device *rdev = dev->dev_private;
	uint16_t lcd_info;
	uint32_t panel_setup;
	char stmp[30];
	int tmp, i;
	struct radeon_encoder_lvds *lvds = NULL;

	if (rdev->bios == NULL) {
		lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
		goto out;
	}

	lcd_info = combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);

	if (lcd_info) {
		lvds = kzalloc(sizeof(struct radeon_encoder_lvds), GFP_KERNEL);

		if (!lvds)
			return NULL;

		for (i = 0; i < 24; i++)
			stmp[i] = RBIOS8(lcd_info + i + 1);
		stmp[24] = 0;

		DRM_INFO("Panel ID String: %s\n", stmp);

		lvds->native_mode.hdisplay = RBIOS16(lcd_info + 0x19);
		lvds->native_mode.vdisplay = RBIOS16(lcd_info + 0x1b);

		DRM_INFO("Panel Size %dx%d\n", lvds->native_mode.hdisplay,
			 lvds->native_mode.vdisplay);

		lvds->panel_vcc_delay = RBIOS16(lcd_info + 0x2c);
		if (lvds->panel_vcc_delay > 2000 || lvds->panel_vcc_delay < 0)
			lvds->panel_vcc_delay = 2000;

		lvds->panel_pwr_delay = RBIOS8(lcd_info + 0x24);
		lvds->panel_digon_delay = RBIOS16(lcd_info + 0x38) & 0xf;
		lvds->panel_blon_delay = (RBIOS16(lcd_info + 0x38) >> 4) & 0xf;

		lvds->panel_ref_divider = RBIOS16(lcd_info + 0x2e);
		lvds->panel_post_divider = RBIOS8(lcd_info + 0x30);
		lvds->panel_fb_divider = RBIOS16(lcd_info + 0x31);
		if ((lvds->panel_ref_divider != 0) &&
		    (lvds->panel_fb_divider > 3))
			lvds->use_bios_dividers = true;

		panel_setup = RBIOS32(lcd_info + 0x39);
		lvds->lvds_gen_cntl = 0xff00;
		if (panel_setup & 0x1)
			lvds->lvds_gen_cntl |= RADEON_LVDS_PANEL_FORMAT;

		if ((panel_setup >> 4) & 0x1)
			lvds->lvds_gen_cntl |= RADEON_LVDS_PANEL_TYPE;

		switch ((panel_setup >> 8) & 0x7) {
		case 0:
			lvds->lvds_gen_cntl |= RADEON_LVDS_NO_FM;
			break;
		case 1:
			lvds->lvds_gen_cntl |= RADEON_LVDS_2_GREY;
			break;
		case 2:
			lvds->lvds_gen_cntl |= RADEON_LVDS_4_GREY;
			break;
		default:
			break;
		}

		if ((panel_setup >> 16) & 0x1)
			lvds->lvds_gen_cntl |= RADEON_LVDS_FP_POL_LOW;

		if ((panel_setup >> 17) & 0x1)
			lvds->lvds_gen_cntl |= RADEON_LVDS_LP_POL_LOW;

		if ((panel_setup >> 18) & 0x1)
			lvds->lvds_gen_cntl |= RADEON_LVDS_DTM_POL_LOW;

		if ((panel_setup >> 23) & 0x1)
			lvds->lvds_gen_cntl |= RADEON_LVDS_BL_CLK_SEL;

		lvds->lvds_gen_cntl |= (panel_setup & 0xf0000000);

		for (i = 0; i < 32; i++) {
			tmp = RBIOS16(lcd_info + 64 + i * 2);
			if (tmp == 0)
				break;

			if ((RBIOS16(tmp) == lvds->native_mode.hdisplay) &&
			    (RBIOS16(tmp + 2) ==
			     lvds->native_mode.vdisplay)) {
				lvds->native_mode.htotal = RBIOS16(tmp + 17) * 8;
				lvds->native_mode.hsync_start = RBIOS16(tmp + 21) * 8;
				lvds->native_mode.hsync_end = (RBIOS8(tmp + 23) +
							       RBIOS16(tmp + 21)) * 8;

				lvds->native_mode.vtotal = RBIOS16(tmp + 24);
				lvds->native_mode.vsync_start = RBIOS16(tmp + 28) & 0x7ff;
				lvds->native_mode.vsync_end =
					((RBIOS16(tmp + 28) & 0xf800) >> 11) +
					(RBIOS16(tmp + 28) & 0x7ff);

				lvds->native_mode.clock = RBIOS16(tmp + 9) * 10;
				lvds->native_mode.flags = 0;
				/* set crtc values */
				drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V);

			}
		}
	} else {
		DRM_INFO("No panel info found in BIOS\n");
		lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
	}
out:
	if (lvds)
		encoder->native_mode = lvds->native_mode;
	return lvds;
}

static const struct radeon_tmds_pll default_tmds_pll[CHIP_LAST][4] = {
	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_R100  */
	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RV100 */
	{{0, 0}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RS100 */
	{{15000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RV200 */
	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RS200 */
	{{15000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_R200  */
	{{15500, 0x81b}, {0xffffffff, 0x83f}, {0, 0}, {0, 0}},	/* CHIP_RV250 */
	{{0, 0}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RS300 */
	{{13000, 0x400f4}, {15000, 0x400f7}, {0xffffffff, 0x40111}, {0, 0}},	/* CHIP_RV280 */
	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R300  */
	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R350  */
	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RV350 */
	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RV380 */
	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R420  */
	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R423  */
	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RV410 */
	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RS400 */
	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RS480 */
};

bool radeon_legacy_get_tmds_info_from_table(struct radeon_encoder *encoder,
					    struct radeon_encoder_int_tmds *tmds)
{
	struct drm_device *dev = encoder->base.dev;
	struct radeon_device *rdev = dev->dev_private;
	int i;

	for (i = 0; i < 4; i++) {
		tmds->tmds_pll[i].value =
			default_tmds_pll[rdev->family][i].value;
		tmds->tmds_pll[i].freq = default_tmds_pll[rdev->family][i].freq;
	}

	return true;
}

bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
					      struct radeon_encoder_int_tmds *tmds)
{
	struct drm_device *dev = encoder->base.dev;
	struct radeon_device *rdev = dev->dev_private;
	uint16_t tmds_info;
	int i, n;
	uint8_t ver;

	if (rdev->bios == NULL)
		return false;

	tmds_info = combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);

	if (tmds_info) {

		ver = RBIOS8(tmds_info);
		DRM_INFO("DFP table revision: %d\n", ver);
		if (ver == 3) {
			n = RBIOS8(tmds_info + 5) + 1;
			if (n > 4)
				n = 4;
			for (i = 0; i < n; i++) {
				tmds->tmds_pll[i].value =
				    RBIOS32(tmds_info + i * 10 + 0x08);
				tmds->tmds_pll[i].freq =
				    RBIOS16(tmds_info + i * 10 + 0x10);
				DRM_DEBUG("TMDS PLL From COMBIOS %u %x\n",
					  tmds->tmds_pll[i].freq,
					  tmds->tmds_pll[i].value);
			}
		} else if (ver == 4) {
			int stride = 0;
			n = RBIOS8(tmds_info + 5) + 1;
			if (n > 4)
				n = 4;
			for (i = 0; i < n; i++) {
				tmds->tmds_pll[i].value =
				    RBIOS32(tmds_info + stride + 0x08);
				tmds->tmds_pll[i].freq =
				    RBIOS16(tmds_info + stride + 0x10);
				if (i == 0)
					stride += 10;
				else
					stride += 6;
				DRM_DEBUG("TMDS PLL From COMBIOS %u %x\n",
					  tmds->tmds_pll[i].freq,
					  tmds->tmds_pll[i].value);
			}
		}
	} else
		DRM_INFO("No TMDS info found in BIOS\n");
	return true;
}

struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct radeon_encoder *encoder)
{
	struct radeon_encoder_int_tmds *tmds = NULL;
	bool ret;

	tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);

	if (!tmds)
		return NULL;

	ret = radeon_legacy_get_tmds_info_from_combios(encoder, tmds);
	if (ret == false)
		radeon_legacy_get_tmds_info_from_table(encoder, tmds);

	return tmds;
}

void radeon_combios_get_ext_tmds_info(struct radeon_encoder *encoder)
{
	struct drm_device *dev = encoder->base.dev;
	struct radeon_device *rdev = dev->dev_private;
	uint16_t ext_tmds_info;
	uint8_t ver;

	if (rdev->bios == NULL)
		return;

	ext_tmds_info =
	    combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
	if (ext_tmds_info) {
		ver = RBIOS8(ext_tmds_info);
		DRM_INFO("External TMDS Table revision: %d\n", ver);
		// TODO
	}
}

bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	struct radeon_i2c_bus_rec ddc_i2c;

	rdev->mode_info.connector_table = radeon_connector_table;
	if (rdev->mode_info.connector_table == CT_NONE) {
#ifdef CONFIG_PPC_PMAC
		if (machine_is_compatible("PowerBook3,3")) {
			/* powerbook with VGA */
			rdev->mode_info.connector_table = CT_POWERBOOK_VGA;
		} else if (machine_is_compatible("PowerBook3,4") ||
			   machine_is_compatible("PowerBook3,5")) {
			/* powerbook with internal tmds */
			rdev->mode_info.connector_table = CT_POWERBOOK_INTERNAL;
		} else if (machine_is_compatible("PowerBook5,1") ||
			   machine_is_compatible("PowerBook5,2") ||
			   machine_is_compatible("PowerBook5,3") ||
			   machine_is_compatible("PowerBook5,4") ||
			   machine_is_compatible("PowerBook5,5")) {
			/* powerbook with external single link tmds (sil164) */
			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
		} else if (machine_is_compatible("PowerBook5,6")) {
			/* powerbook with external dual or single link tmds */
			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
		} else if (machine_is_compatible("PowerBook5,7") ||
			   machine_is_compatible("PowerBook5,8") ||
			   machine_is_compatible("PowerBook5,9")) {
			/* PowerBook6,2 ? */
			/* powerbook with external dual link tmds (sil1178?) */
			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
		} else if (machine_is_compatible("PowerBook4,1") ||
			   machine_is_compatible("PowerBook4,2") ||
			   machine_is_compatible("PowerBook4,3") ||
			   machine_is_compatible("PowerBook6,3") ||
			   machine_is_compatible("PowerBook6,5") ||
			   machine_is_compatible("PowerBook6,7")) {
			/* ibook */
			rdev->mode_info.connector_table = CT_IBOOK;
		} else if (machine_is_compatible("PowerMac4,4")) {
			/* emac */
			rdev->mode_info.connector_table = CT_EMAC;
		} else if (machine_is_compatible("PowerMac10,1")) {
			/* mini with internal tmds */
			rdev->mode_info.connector_table = CT_MINI_INTERNAL;
		} else if (machine_is_compatible("PowerMac10,2")) {
			/* mini with external tmds */
			rdev->mode_info.connector_table = CT_MINI_EXTERNAL;
		} else if (machine_is_compatible("PowerMac12,1")) {
			/* PowerMac8,1 ? */
			/* imac g5 isight */
			rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
		} else
#endif /* CONFIG_PPC_PMAC */
			rdev->mode_info.connector_table = CT_GENERIC;
	}

	switch (rdev->mode_info.connector_table) {
	case CT_GENERIC:
		DRM_INFO("Connector Table: %d (generic)\n",
			 rdev->mode_info.connector_table);
		/* these are the most common settings */
		if (rdev->flags & RADEON_SINGLE_CRTC) {
			/* VGA - primary dac */
			ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_CRT1_SUPPORT,
									1),
						  ATOM_DEVICE_CRT1_SUPPORT);
			radeon_add_legacy_connector(dev, 0,
						    ATOM_DEVICE_CRT1_SUPPORT,
						    DRM_MODE_CONNECTOR_VGA,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_VGA);
		} else if (rdev->flags & RADEON_IS_MOBILITY) {
			/* LVDS */
			ddc_i2c = combios_setup_i2c_bus(RADEON_LCD_GPIO_MASK);
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_LCD1_SUPPORT,
									0),
						  ATOM_DEVICE_LCD1_SUPPORT);
			radeon_add_legacy_connector(dev, 0,
						    ATOM_DEVICE_LCD1_SUPPORT,
						    DRM_MODE_CONNECTOR_LVDS,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_LVDS);

			/* VGA - primary dac */
			ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_CRT1_SUPPORT,
									1),
						  ATOM_DEVICE_CRT1_SUPPORT);
			radeon_add_legacy_connector(dev, 1,
						    ATOM_DEVICE_CRT1_SUPPORT,
						    DRM_MODE_CONNECTOR_VGA,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_VGA);
		} else {
			/* DVI-I - tv dac, int tmds */
			ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_DFP1_SUPPORT,
									0),
						  ATOM_DEVICE_DFP1_SUPPORT);
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_CRT2_SUPPORT,
									2),
						  ATOM_DEVICE_CRT2_SUPPORT);
			radeon_add_legacy_connector(dev, 0,
						    ATOM_DEVICE_DFP1_SUPPORT |
						    ATOM_DEVICE_CRT2_SUPPORT,
						    DRM_MODE_CONNECTOR_DVII,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I);

			/* VGA - primary dac */
			ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_CRT1_SUPPORT,
									1),
						  ATOM_DEVICE_CRT1_SUPPORT);
			radeon_add_legacy_connector(dev, 1,
						    ATOM_DEVICE_CRT1_SUPPORT,
						    DRM_MODE_CONNECTOR_VGA,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_VGA);
		}

		if (rdev->family != CHIP_R100 && rdev->family != CHIP_R200) {
			/* TV - tv dac */
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_TV1_SUPPORT,
									2),
						  ATOM_DEVICE_TV1_SUPPORT);
			radeon_add_legacy_connector(dev, 2,
						    ATOM_DEVICE_TV1_SUPPORT,
						    DRM_MODE_CONNECTOR_SVIDEO,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_SVIDEO);
		}
		break;
	case CT_IBOOK:
		DRM_INFO("Connector Table: %d (ibook)\n",
			 rdev->mode_info.connector_table);
		/* LVDS */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_LCD1_SUPPORT,
								0),
					  ATOM_DEVICE_LCD1_SUPPORT);
		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_LVDS);
		/* VGA - TV DAC */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT2_SUPPORT,
								2),
					  ATOM_DEVICE_CRT2_SUPPORT);
		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_VGA);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	case CT_POWERBOOK_EXTERNAL:
		DRM_INFO("Connector Table: %d (powerbook external tmds)\n",
			 rdev->mode_info.connector_table);
		/* LVDS */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_LCD1_SUPPORT,
								0),
					  ATOM_DEVICE_LCD1_SUPPORT);
		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_LVDS);
		/* DVI-I - primary dac, ext tmds */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_DFP2_SUPPORT,
								0),
					  ATOM_DEVICE_DFP2_SUPPORT);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT1_SUPPORT,
								1),
					  ATOM_DEVICE_CRT1_SUPPORT);
		/* XXX some are SL */
		radeon_add_legacy_connector(dev, 1,
					    ATOM_DEVICE_DFP2_SUPPORT |
					    ATOM_DEVICE_CRT1_SUPPORT,
					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	case CT_POWERBOOK_INTERNAL:
		DRM_INFO("Connector Table: %d (powerbook internal tmds)\n",
			 rdev->mode_info.connector_table);
		/* LVDS */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_LCD1_SUPPORT,
								0),
					  ATOM_DEVICE_LCD1_SUPPORT);
		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_LVDS);
		/* DVI-I - primary dac, int tmds */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_DFP1_SUPPORT,
								0),
					  ATOM_DEVICE_DFP1_SUPPORT);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT1_SUPPORT,
								1),
					  ATOM_DEVICE_CRT1_SUPPORT);
		radeon_add_legacy_connector(dev, 1,
					    ATOM_DEVICE_DFP1_SUPPORT |
					    ATOM_DEVICE_CRT1_SUPPORT,
					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	case CT_POWERBOOK_VGA:
		DRM_INFO("Connector Table: %d (powerbook vga)\n",
			 rdev->mode_info.connector_table);
		/* LVDS */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_LCD1_SUPPORT,
								0),
					  ATOM_DEVICE_LCD1_SUPPORT);
		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_LVDS);
		/* VGA - primary dac */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT1_SUPPORT,
								1),
					  ATOM_DEVICE_CRT1_SUPPORT);
		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT1_SUPPORT,
					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_VGA);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	case CT_MINI_EXTERNAL:
		DRM_INFO("Connector Table: %d (mini external tmds)\n",
			 rdev->mode_info.connector_table);
		/* DVI-I - tv dac, ext tmds */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_CRT2_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_DFP2_SUPPORT,
								0),
					  ATOM_DEVICE_DFP2_SUPPORT);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT2_SUPPORT,
								2),
					  ATOM_DEVICE_CRT2_SUPPORT);
		/* XXX are any DL? */
		radeon_add_legacy_connector(dev, 0,
					    ATOM_DEVICE_DFP2_SUPPORT |
					    ATOM_DEVICE_CRT2_SUPPORT,
					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	case CT_MINI_INTERNAL:
		DRM_INFO("Connector Table: %d (mini internal tmds)\n",
			 rdev->mode_info.connector_table);
		/* DVI-I - tv dac, int tmds */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_CRT2_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_DFP1_SUPPORT,
								0),
					  ATOM_DEVICE_DFP1_SUPPORT);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT2_SUPPORT,
								2),
					  ATOM_DEVICE_CRT2_SUPPORT);
		radeon_add_legacy_connector(dev, 0,
					    ATOM_DEVICE_DFP1_SUPPORT |
					    ATOM_DEVICE_CRT2_SUPPORT,
					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	case CT_IMAC_G5_ISIGHT:
		DRM_INFO("Connector Table: %d (imac g5 isight)\n",
			 rdev->mode_info.connector_table);
		/* DVI-D - int tmds */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_MONID);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_DFP1_SUPPORT,
								0),
					  ATOM_DEVICE_DFP1_SUPPORT);
		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_DFP1_SUPPORT,
					    DRM_MODE_CONNECTOR_DVID, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D);
		/* VGA - tv dac */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT2_SUPPORT,
								2),
					  ATOM_DEVICE_CRT2_SUPPORT);
		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_VGA);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	case CT_EMAC:
		DRM_INFO("Connector Table: %d (emac)\n",
			 rdev->mode_info.connector_table);
		/* VGA - primary dac */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT1_SUPPORT,
								1),
					  ATOM_DEVICE_CRT1_SUPPORT);
		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_CRT1_SUPPORT,
					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_VGA);
		/* VGA - tv dac */
		ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_CRT2_DDC);
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_CRT2_SUPPORT,
								2),
					  ATOM_DEVICE_CRT2_SUPPORT);
		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
					    CONNECTOR_OBJECT_ID_VGA);
		/* TV - TV DAC */
		radeon_add_legacy_encoder(dev,
					  radeon_get_encoder_id(dev,
								ATOM_DEVICE_TV1_SUPPORT,
								2),
					  ATOM_DEVICE_TV1_SUPPORT);
		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
					    DRM_MODE_CONNECTOR_SVIDEO,
					    &ddc_i2c,
					    CONNECTOR_OBJECT_ID_SVIDEO);
		break;
	default:
		DRM_INFO("Connector table: %d (invalid)\n",
			 rdev->mode_info.connector_table);
		return false;
	}

	radeon_link_encoder_connector(dev);

	return true;
}

static bool radeon_apply_legacy_quirks(struct drm_device *dev,
				       int bios_index,
				       enum radeon_combios_connector
				       *legacy_connector,
				       struct radeon_i2c_bus_rec *ddc_i2c)
{
	struct radeon_device *rdev = dev->dev_private;

	/* XPRESS DDC quirks */
	if ((rdev->family == CHIP_RS400 ||
	     rdev->family == CHIP_RS480) &&
	    ddc_i2c->mask_clk_reg == RADEON_GPIO_CRT2_DDC)
		*ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_MONID);
	else if ((rdev->family == CHIP_RS400 ||
		  rdev->family == CHIP_RS480) &&
		 ddc_i2c->mask_clk_reg == RADEON_GPIO_MONID) {
		ddc_i2c->valid = true;
		ddc_i2c->mask_clk_mask = (0x20 << 8);
		ddc_i2c->mask_data_mask = 0x80;
		ddc_i2c->a_clk_mask = (0x20 << 8);
		ddc_i2c->a_data_mask = 0x80;
		ddc_i2c->put_clk_mask = (0x20 << 8);
		ddc_i2c->put_data_mask = 0x80;
		ddc_i2c->get_clk_mask = (0x20 << 8);
		ddc_i2c->get_data_mask = 0x80;
		ddc_i2c->mask_clk_reg = RADEON_GPIOPAD_MASK;
		ddc_i2c->mask_data_reg = RADEON_GPIOPAD_MASK;
		ddc_i2c->a_clk_reg = RADEON_GPIOPAD_A;
		ddc_i2c->a_data_reg = RADEON_GPIOPAD_A;
		ddc_i2c->put_clk_reg = RADEON_GPIOPAD_EN;
		ddc_i2c->put_data_reg = RADEON_GPIOPAD_EN;
		ddc_i2c->get_clk_reg = RADEON_LCD_GPIO_Y_REG;
		ddc_i2c->get_data_reg = RADEON_LCD_GPIO_Y_REG;
	}

	/* Certain IBM chipset RN50s have a BIOS reporting two VGAs,
	   one with VGA DDC and one with CRT2 DDC. - kill the CRT2 DDC one */
	if (dev->pdev->device == 0x515e &&
	    dev->pdev->subsystem_vendor == 0x1014) {
		if (*legacy_connector == CONNECTOR_CRT_LEGACY &&
		    ddc_i2c->mask_clk_reg == RADEON_GPIO_CRT2_DDC)
			return false;
	}

	/* Some RV100 cards with 2 VGA ports show up with DVI+VGA */
	if (dev->pdev->device == 0x5159 &&
	    dev->pdev->subsystem_vendor == 0x1002 &&
	    dev->pdev->subsystem_device == 0x013a) {
		if (*legacy_connector == CONNECTOR_DVI_I_LEGACY)
			*legacy_connector = CONNECTOR_CRT_LEGACY;

	}

	/* X300 card with extra non-existent DVI port */
	if (dev->pdev->device == 0x5B60 &&
	    dev->pdev->subsystem_vendor == 0x17af &&
	    dev->pdev->subsystem_device == 0x201e && bios_index == 2) {
		if (*legacy_connector == CONNECTOR_DVI_I_LEGACY)
			return false;
	}

	return true;
}

static bool radeon_apply_legacy_tv_quirks(struct drm_device *dev)
{
	/* Acer 5102 has non-existent TV port */
	if (dev->pdev->device == 0x5975 &&
	    dev->pdev->subsystem_vendor == 0x1025 &&
	    dev->pdev->subsystem_device == 0x009f)
		return false;

	/* HP dc5750 has non-existent TV port */
	if (dev->pdev->device == 0x5974 &&
	    dev->pdev->subsystem_vendor == 0x103c &&
	    dev->pdev->subsystem_device == 0x280a)
		return false;

	return true;
}

static uint16_t combios_check_dl_dvi(struct drm_device *dev, int is_dvi_d)
{
	struct radeon_device *rdev = dev->dev_private;
	uint32_t ext_tmds_info;

	if (rdev->flags & RADEON_IS_IGP) {
		if (is_dvi_d)
			return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D;
		else
			return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
	}
	ext_tmds_info = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
	if (ext_tmds_info) {
		uint8_t rev = RBIOS8(ext_tmds_info);
		uint8_t flags = RBIOS8(ext_tmds_info + 4 + 5);
		if (rev >= 3) {
			if (is_dvi_d)
				return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D;
			else
				return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I;
		} else {
			if (flags & 1) {
				if (is_dvi_d)
					return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D;
				else
					return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I;
			}
		}
	}
	if (is_dvi_d)
		return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D;
	else
		return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
}

bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	uint32_t conn_info, entry, devices;
	uint16_t tmp, connector_object_id;
	enum radeon_combios_ddc ddc_type;
	enum radeon_combios_connector connector;
	int i = 0;
	struct radeon_i2c_bus_rec ddc_i2c;

	if (rdev->bios == NULL)
		return false;

	conn_info = combios_get_table_offset(dev, COMBIOS_CONNECTOR_INFO_TABLE);
	if (conn_info) {
		for (i = 0; i < 4; i++) {
			entry = conn_info + 2 + i * 2;

			if (!RBIOS16(entry))
				break;

			tmp = RBIOS16(entry);

			connector = (tmp >> 12) & 0xf;

			ddc_type = (tmp >> 8) & 0xf;
			switch (ddc_type) {
			case DDC_MONID:
				ddc_i2c =
				    combios_setup_i2c_bus(RADEON_GPIO_MONID);
				break;
			case DDC_DVI:
				ddc_i2c =
				    combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
				break;
			case DDC_VGA:
				ddc_i2c =
				    combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
				break;
			case DDC_CRT2:
				ddc_i2c =
				    combios_setup_i2c_bus(RADEON_GPIO_CRT2_DDC);
				break;
			default:
				break;
			}

			if (!radeon_apply_legacy_quirks(dev, i, &connector,
						       &ddc_i2c))
				continue;

			switch (connector) {
			case CONNECTOR_PROPRIETARY_LEGACY:
				if ((tmp >> 4) & 0x1)
					devices = ATOM_DEVICE_DFP2_SUPPORT;
				else
					devices = ATOM_DEVICE_DFP1_SUPPORT;
				radeon_add_legacy_encoder(dev,
							  radeon_get_encoder_id
							  (dev, devices, 0),
							  devices);
				radeon_add_legacy_connector(dev, i, devices,
							    legacy_connector_convert
							    [connector],
							    &ddc_i2c,
							    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D);
				break;
			case CONNECTOR_CRT_LEGACY:
				if (tmp & 0x1) {
					devices = ATOM_DEVICE_CRT2_SUPPORT;
					radeon_add_legacy_encoder(dev,
								  radeon_get_encoder_id
								  (dev,
								   ATOM_DEVICE_CRT2_SUPPORT,
								   2),
								  ATOM_DEVICE_CRT2_SUPPORT);
				} else {
					devices = ATOM_DEVICE_CRT1_SUPPORT;
					radeon_add_legacy_encoder(dev,
								  radeon_get_encoder_id
								  (dev,
								   ATOM_DEVICE_CRT1_SUPPORT,
								   1),
								  ATOM_DEVICE_CRT1_SUPPORT);
				}
				radeon_add_legacy_connector(dev,
							    i,
							    devices,
							    legacy_connector_convert
							    [connector],
							    &ddc_i2c,
							    CONNECTOR_OBJECT_ID_VGA);
				break;
			case CONNECTOR_DVI_I_LEGACY:
				devices = 0;
				if (tmp & 0x1) {
					devices |= ATOM_DEVICE_CRT2_SUPPORT;
					radeon_add_legacy_encoder(dev,
								  radeon_get_encoder_id
								  (dev,
								   ATOM_DEVICE_CRT2_SUPPORT,
								   2),
								  ATOM_DEVICE_CRT2_SUPPORT);
				} else {
					devices |= ATOM_DEVICE_CRT1_SUPPORT;
					radeon_add_legacy_encoder(dev,
								  radeon_get_encoder_id
								  (dev,
								   ATOM_DEVICE_CRT1_SUPPORT,
								   1),
								  ATOM_DEVICE_CRT1_SUPPORT);
				}
				if ((tmp >> 4) & 0x1) {
					devices |= ATOM_DEVICE_DFP2_SUPPORT;
					radeon_add_legacy_encoder(dev,
								  radeon_get_encoder_id
								  (dev,
								   ATOM_DEVICE_DFP2_SUPPORT,
								   0),
								  ATOM_DEVICE_DFP2_SUPPORT);
					connector_object_id = combios_check_dl_dvi(dev, 0);
				} else {
					devices |= ATOM_DEVICE_DFP1_SUPPORT;
					radeon_add_legacy_encoder(dev,
								  radeon_get_encoder_id
								  (dev,
								   ATOM_DEVICE_DFP1_SUPPORT,
								   0),
								  ATOM_DEVICE_DFP1_SUPPORT);
					connector_object_id = CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
				}
				radeon_add_legacy_connector(dev,
							    i,
							    devices,
							    legacy_connector_convert
							    [connector],
							    &ddc_i2c,
							    connector_object_id);
				break;
			case CONNECTOR_DVI_D_LEGACY:
				if ((tmp >> 4) & 0x1) {
					devices = ATOM_DEVICE_DFP2_SUPPORT;
					connector_object_id = combios_check_dl_dvi(dev, 1);
				} else {
					devices = ATOM_DEVICE_DFP1_SUPPORT;
					connector_object_id = CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
				}
				radeon_add_legacy_encoder(dev,
							  radeon_get_encoder_id
							  (dev, devices, 0),
							  devices);
				radeon_add_legacy_connector(dev, i, devices,
							    legacy_connector_convert
							    [connector],
							    &ddc_i2c,
							    connector_object_id);
				break;
			case CONNECTOR_CTV_LEGACY:
			case CONNECTOR_STV_LEGACY:
				radeon_add_legacy_encoder(dev,
							  radeon_get_encoder_id
							  (dev,
							   ATOM_DEVICE_TV1_SUPPORT,
							   2),
							  ATOM_DEVICE_TV1_SUPPORT);
				radeon_add_legacy_connector(dev, i,
							    ATOM_DEVICE_TV1_SUPPORT,
							    legacy_connector_convert
							    [connector],
							    &ddc_i2c,
							    CONNECTOR_OBJECT_ID_SVIDEO);
				break;
			default:
				DRM_ERROR("Unknown connector type: %d\n",
					  connector);
				continue;
			}

		}
	} else {
		uint16_t tmds_info =
		    combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
		if (tmds_info) {
			DRM_DEBUG("Found DFP table, assuming DVI connector\n");

			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_CRT1_SUPPORT,
									1),
						  ATOM_DEVICE_CRT1_SUPPORT);
			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_DFP1_SUPPORT,
									0),
						  ATOM_DEVICE_DFP1_SUPPORT);

			ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
			radeon_add_legacy_connector(dev,
						    0,
						    ATOM_DEVICE_CRT1_SUPPORT |
						    ATOM_DEVICE_DFP1_SUPPORT,
						    DRM_MODE_CONNECTOR_DVII,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I);
		} else {
			uint16_t crt_info =
				combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
			DRM_DEBUG("Found CRT table, assuming VGA connector\n");
			if (crt_info) {
				radeon_add_legacy_encoder(dev,
							  radeon_get_encoder_id(dev,
										ATOM_DEVICE_CRT1_SUPPORT,
										1),
							  ATOM_DEVICE_CRT1_SUPPORT);
				ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
				radeon_add_legacy_connector(dev,
							    0,
							    ATOM_DEVICE_CRT1_SUPPORT,
							    DRM_MODE_CONNECTOR_VGA,
							    &ddc_i2c,
							    CONNECTOR_OBJECT_ID_VGA);
			} else {
				DRM_DEBUG("No connector info found\n");
				return false;
			}
		}
	}

	if (rdev->flags & RADEON_IS_MOBILITY || rdev->flags & RADEON_IS_IGP) {
		uint16_t lcd_info =
		    combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
		if (lcd_info) {
			uint16_t lcd_ddc_info =
			    combios_get_table_offset(dev,
						     COMBIOS_LCD_DDC_INFO_TABLE);

			radeon_add_legacy_encoder(dev,
						  radeon_get_encoder_id(dev,
									ATOM_DEVICE_LCD1_SUPPORT,
									0),
						  ATOM_DEVICE_LCD1_SUPPORT);

			if (lcd_ddc_info) {
				ddc_type = RBIOS8(lcd_ddc_info + 2);
				switch (ddc_type) {
				case DDC_MONID:
					ddc_i2c =
					    combios_setup_i2c_bus
					    (RADEON_GPIO_MONID);
					break;
				case DDC_DVI:
					ddc_i2c =
					    combios_setup_i2c_bus
					    (RADEON_GPIO_DVI_DDC);
					break;
				case DDC_VGA:
					ddc_i2c =
					    combios_setup_i2c_bus
					    (RADEON_GPIO_VGA_DDC);
					break;
				case DDC_CRT2:
					ddc_i2c =
					    combios_setup_i2c_bus
					    (RADEON_GPIO_CRT2_DDC);
					break;
				case DDC_LCD:
					ddc_i2c =
					    combios_setup_i2c_bus
					    (RADEON_LCD_GPIO_MASK);
					ddc_i2c.mask_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.mask_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					ddc_i2c.a_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.a_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					ddc_i2c.put_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.put_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					ddc_i2c.get_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.get_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					break;
				case DDC_GPIO:
					ddc_i2c =
					    combios_setup_i2c_bus
					    (RADEON_MDGPIO_EN_REG);
					ddc_i2c.mask_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.mask_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					ddc_i2c.a_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.a_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					ddc_i2c.put_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.put_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					ddc_i2c.get_clk_mask =
					    RBIOS32(lcd_ddc_info + 3);
					ddc_i2c.get_data_mask =
					    RBIOS32(lcd_ddc_info + 7);
					break;
				default:
					ddc_i2c.valid = false;
					break;
				}
				DRM_DEBUG("LCD DDC Info Table found!\n");
			} else
				ddc_i2c.valid = false;

			radeon_add_legacy_connector(dev,
						    5,
						    ATOM_DEVICE_LCD1_SUPPORT,
						    DRM_MODE_CONNECTOR_LVDS,
						    &ddc_i2c,
						    CONNECTOR_OBJECT_ID_LVDS);
		}
	}

	/* check TV table */
	if (rdev->family != CHIP_R100 && rdev->family != CHIP_R200) {
		uint32_t tv_info =
		    combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
		if (tv_info) {
			if (RBIOS8(tv_info + 6) == 'T') {
				if (radeon_apply_legacy_tv_quirks(dev)) {
					radeon_add_legacy_encoder(dev,
								  radeon_get_encoder_id
								  (dev,
								   ATOM_DEVICE_TV1_SUPPORT,
								   2),
								  ATOM_DEVICE_TV1_SUPPORT);
					radeon_add_legacy_connector(dev, 6,
								    ATOM_DEVICE_TV1_SUPPORT,
								    DRM_MODE_CONNECTOR_SVIDEO,
								    &ddc_i2c,
								    CONNECTOR_OBJECT_ID_SVIDEO);
				}
			}
		}
	}

	radeon_link_encoder_connector(dev);

	return true;
}

static void combios_parse_mmio_table(struct drm_device *dev, uint16_t offset)
{
	struct radeon_device *rdev = dev->dev_private;

	if (offset) {
		while (RBIOS16(offset)) {
			uint16_t cmd = ((RBIOS16(offset) & 0xe000) >> 13);
			uint32_t addr = (RBIOS16(offset) & 0x1fff);
			uint32_t val, and_mask, or_mask;
			uint32_t tmp;

			offset += 2;
			switch (cmd) {
			case 0:
				val = RBIOS32(offset);
				offset += 4;
				WREG32(addr, val);
				break;
			case 1:
				val = RBIOS32(offset);
				offset += 4;
				WREG32(addr, val);
				break;
			case 2:
				and_mask = RBIOS32(offset);
				offset += 4;
				or_mask = RBIOS32(offset);
				offset += 4;
				tmp = RREG32(addr);
				tmp &= and_mask;
				tmp |= or_mask;
				WREG32(addr, tmp);
				break;
			case 3:
				and_mask = RBIOS32(offset);
				offset += 4;
				or_mask = RBIOS32(offset);
				offset += 4;
				tmp = RREG32(addr);
				tmp &= and_mask;
				tmp |= or_mask;
				WREG32(addr, tmp);
				break;
			case 4:
				val = RBIOS16(offset);
				offset += 2;
				udelay(val);
				break;
			case 5:
				val = RBIOS16(offset);
				offset += 2;
				switch (addr) {
				case 8:
					while (val--) {
						if (!
						    (RREG32_PLL
						     (RADEON_CLK_PWRMGT_CNTL) &
						     RADEON_MC_BUSY))
							break;
					}
					break;
				case 9:
					while (val--) {
						if ((RREG32(RADEON_MC_STATUS) &
						     RADEON_MC_IDLE))
							break;
					}
					break;
				default:
					break;
				}
				break;
			default:
				break;
			}
		}
	}
}

static void combios_parse_pll_table(struct drm_device *dev, uint16_t offset)
{
	struct radeon_device *rdev = dev->dev_private;

	if (offset) {
		while (RBIOS8(offset)) {
			uint8_t cmd = ((RBIOS8(offset) & 0xc0) >> 6);
			uint8_t addr = (RBIOS8(offset) & 0x3f);
			uint32_t val, shift, tmp;
			uint32_t and_mask, or_mask;

			offset++;
			switch (cmd) {
			case 0:
				val = RBIOS32(offset);
				offset += 4;
				WREG32_PLL(addr, val);
				break;
			case 1:
				shift = RBIOS8(offset) * 8;
				offset++;
				and_mask = RBIOS8(offset) << shift;
				and_mask |= ~(0xff << shift);
				offset++;
				or_mask = RBIOS8(offset) << shift;
				offset++;
				tmp = RREG32_PLL(addr);
				tmp &= and_mask;
				tmp |= or_mask;
				WREG32_PLL(addr, tmp);
				break;
			case 2:
			case 3:
				tmp = 1000;
				switch (addr) {
				case 1:
					udelay(150);
					break;
				case 2:
					udelay(1000);
					break;
				case 3:
					while (tmp--) {
						if (!
						    (RREG32_PLL
						     (RADEON_CLK_PWRMGT_CNTL) &
						     RADEON_MC_BUSY))
							break;
					}
					break;
				case 4:
					while (tmp--) {
						if (RREG32_PLL
						    (RADEON_CLK_PWRMGT_CNTL) &
						    RADEON_DLL_READY)
							break;
					}
					break;
				case 5:
					tmp =
					    RREG32_PLL(RADEON_CLK_PWRMGT_CNTL);
					if (tmp & RADEON_CG_NO1_DEBUG_0) {
#if 0
						uint32_t mclk_cntl =
						    RREG32_PLL
						    (RADEON_MCLK_CNTL);
						mclk_cntl &= 0xffff0000;
						/*mclk_cntl |= 0x00001111;*//* ??? */
						WREG32_PLL(RADEON_MCLK_CNTL,
							   mclk_cntl);
						udelay(10000);
#endif
						WREG32_PLL
						    (RADEON_CLK_PWRMGT_CNTL,
						     tmp &
						     ~RADEON_CG_NO1_DEBUG_0);
						udelay(10000);
					}
					break;
				default:
					break;
				}
				break;
			default:
				break;
			}
		}
	}
}

static void combios_parse_ram_reset_table(struct drm_device *dev,
					  uint16_t offset)
{
	struct radeon_device *rdev = dev->dev_private;
	uint32_t tmp;

	if (offset) {
		uint8_t val = RBIOS8(offset);
		while (val != 0xff) {
			offset++;

			if (val == 0x0f) {
				uint32_t channel_complete_mask;

				if (ASIC_IS_R300(rdev))
					channel_complete_mask =
					    R300_MEM_PWRUP_COMPLETE;
				else
					channel_complete_mask =
					    RADEON_MEM_PWRUP_COMPLETE;
				tmp = 20000;
				while (tmp--) {
					if ((RREG32(RADEON_MEM_STR_CNTL) &
					     channel_complete_mask) ==
					    channel_complete_mask)
						break;
				}
			} else {
				uint32_t or_mask = RBIOS16(offset);
				offset += 2;

				tmp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
				tmp &= RADEON_SDRAM_MODE_MASK;
				tmp |= or_mask;
				WREG32(RADEON_MEM_SDRAM_MODE_REG, tmp);

				or_mask = val << 24;
				tmp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
				tmp &= RADEON_B3MEM_RESET_MASK;
				tmp |= or_mask;
				WREG32(RADEON_MEM_SDRAM_MODE_REG, tmp);
			}
			val = RBIOS8(offset);
		}
	}
}

static uint32_t combios_detect_ram(struct drm_device *dev, int ram,
				   int mem_addr_mapping)
{
	struct radeon_device *rdev = dev->dev_private;
	uint32_t mem_cntl;
	uint32_t mem_size;
	uint32_t addr = 0;

	mem_cntl = RREG32(RADEON_MEM_CNTL);
	if (mem_cntl & RV100_HALF_MODE)
		ram /= 2;
	mem_size = ram;
	mem_cntl &= ~(0xff << 8);
	mem_cntl |= (mem_addr_mapping & 0xff) << 8;
	WREG32(RADEON_MEM_CNTL, mem_cntl);
	RREG32(RADEON_MEM_CNTL);

	/* sdram reset ? */

	/* something like this????  */
	while (ram--) {
		addr = ram * 1024 * 1024;
		/* write to each page */
		WREG32(RADEON_MM_INDEX, (addr) | RADEON_MM_APER);
		WREG32(RADEON_MM_DATA, 0xdeadbeef);
		/* read back and verify */
		WREG32(RADEON_MM_INDEX, (addr) | RADEON_MM_APER);
		if (RREG32(RADEON_MM_DATA) != 0xdeadbeef)
			return 0;
	}

	return mem_size;
}

static void combios_write_ram_size(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	uint8_t rev;
	uint16_t offset;
	uint32_t mem_size = 0;
	uint32_t mem_cntl = 0;

	/* should do something smarter here I guess... */
	if (rdev->flags & RADEON_IS_IGP)
		return;

	/* first check detected mem table */
	offset = combios_get_table_offset(dev, COMBIOS_DETECTED_MEM_TABLE);
	if (offset) {
		rev = RBIOS8(offset);
		if (rev < 3) {
			mem_cntl = RBIOS32(offset + 1);
			mem_size = RBIOS16(offset + 5);
			if (((rdev->flags & RADEON_FAMILY_MASK) < CHIP_R200) &&
			    ((dev->pdev->device != 0x515e)
			     && (dev->pdev->device != 0x5969)))
				WREG32(RADEON_MEM_CNTL, mem_cntl);
		}
	}

	if (!mem_size) {
		offset =
		    combios_get_table_offset(dev, COMBIOS_MEM_CONFIG_TABLE);
		if (offset) {
			rev = RBIOS8(offset - 1);
			if (rev < 1) {
				if (((rdev->flags & RADEON_FAMILY_MASK) <
				     CHIP_R200)
				    && ((dev->pdev->device != 0x515e)
					&& (dev->pdev->device != 0x5969))) {
					int ram = 0;
					int mem_addr_mapping = 0;

					while (RBIOS8(offset)) {
						ram = RBIOS8(offset);
						mem_addr_mapping =
						    RBIOS8(offset + 1);
						if (mem_addr_mapping != 0x25)
							ram *= 2;
						mem_size =
						    combios_detect_ram(dev, ram,
								       mem_addr_mapping);
						if (mem_size)
							break;
						offset += 2;
					}
				} else
					mem_size = RBIOS8(offset);
			} else {
				mem_size = RBIOS8(offset);
				mem_size *= 2;	/* convert to MB */
			}
		}
	}

	mem_size *= (1024 * 1024);	/* convert to bytes */
	WREG32(RADEON_CONFIG_MEMSIZE, mem_size);
}

void radeon_combios_dyn_clk_setup(struct drm_device *dev, int enable)
{
	uint16_t dyn_clk_info =
	    combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);

	if (dyn_clk_info)
		combios_parse_pll_table(dev, dyn_clk_info);
}

void radeon_combios_asic_init(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	uint16_t table;

	/* port hardcoded mac stuff from radeonfb */
	if (rdev->bios == NULL)
		return;

	/* ASIC INIT 1 */
	table = combios_get_table_offset(dev, COMBIOS_ASIC_INIT_1_TABLE);
	if (table)
		combios_parse_mmio_table(dev, table);

	/* PLL INIT */
	table = combios_get_table_offset(dev, COMBIOS_PLL_INIT_TABLE);
	if (table)
		combios_parse_pll_table(dev, table);

	/* ASIC INIT 2 */
	table = combios_get_table_offset(dev, COMBIOS_ASIC_INIT_2_TABLE);
	if (table)
		combios_parse_mmio_table(dev, table);

	if (!(rdev->flags & RADEON_IS_IGP)) {
		/* ASIC INIT 4 */
		table =
		    combios_get_table_offset(dev, COMBIOS_ASIC_INIT_4_TABLE);
		if (table)
			combios_parse_mmio_table(dev, table);

		/* RAM RESET */
		table = combios_get_table_offset(dev, COMBIOS_RAM_RESET_TABLE);
		if (table)
			combios_parse_ram_reset_table(dev, table);

		/* ASIC INIT 3 */
		table =
		    combios_get_table_offset(dev, COMBIOS_ASIC_INIT_3_TABLE);
		if (table)
			combios_parse_mmio_table(dev, table);

		/* write CONFIG_MEMSIZE */
		combios_write_ram_size(dev);
	}

	/* DYN CLK 1 */
	table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
	if (table)
		combios_parse_pll_table(dev, table);

}

void radeon_combios_initialize_bios_scratch_regs(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	uint32_t bios_0_scratch, bios_6_scratch, bios_7_scratch;

	bios_0_scratch = RREG32(RADEON_BIOS_0_SCRATCH);
	bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
	bios_7_scratch = RREG32(RADEON_BIOS_7_SCRATCH);

	/* let the bios control the backlight */
	bios_0_scratch &= ~RADEON_DRIVER_BRIGHTNESS_EN;

	/* tell the bios not to handle mode switching */
	bios_6_scratch |= (RADEON_DISPLAY_SWITCHING_DIS |
			   RADEON_ACC_MODE_CHANGE);

	/* tell the bios a driver is loaded */
	bios_7_scratch |= RADEON_DRV_LOADED;

	WREG32(RADEON_BIOS_0_SCRATCH, bios_0_scratch);
	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
	WREG32(RADEON_BIOS_7_SCRATCH, bios_7_scratch);
}

void radeon_combios_output_lock(struct drm_encoder *encoder, bool lock)
{
	struct drm_device *dev = encoder->dev;
	struct radeon_device *rdev = dev->dev_private;
	uint32_t bios_6_scratch;

	bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);

	if (lock)
		bios_6_scratch |= RADEON_DRIVER_CRITICAL;
	else
		bios_6_scratch &= ~RADEON_DRIVER_CRITICAL;

	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
}

void
radeon_combios_connected_scratch_regs(struct drm_connector *connector,
				      struct drm_encoder *encoder,
				      bool connected)
{
	struct drm_device *dev = connector->dev;
	struct radeon_device *rdev = dev->dev_private;
	struct radeon_connector *radeon_connector =
	    to_radeon_connector(connector);
	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
	uint32_t bios_4_scratch = RREG32(RADEON_BIOS_4_SCRATCH);
	uint32_t bios_5_scratch = RREG32(RADEON_BIOS_5_SCRATCH);

	if ((radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) &&
	    (radeon_connector->devices & ATOM_DEVICE_TV1_SUPPORT)) {
		if (connected) {
			DRM_DEBUG("TV1 connected\n");
			/* fix me */
			bios_4_scratch |= RADEON_TV1_ATTACHED_SVIDEO;
			/*save->bios_4_scratch |= RADEON_TV1_ATTACHED_COMP; */
			bios_5_scratch |= RADEON_TV1_ON;
			bios_5_scratch |= RADEON_ACC_REQ_TV1;
		} else {
			DRM_DEBUG("TV1 disconnected\n");
			bios_4_scratch &= ~RADEON_TV1_ATTACHED_MASK;
			bios_5_scratch &= ~RADEON_TV1_ON;
			bios_5_scratch &= ~RADEON_ACC_REQ_TV1;
		}
	}
	if ((radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) &&
	    (radeon_connector->devices & ATOM_DEVICE_LCD1_SUPPORT)) {
		if (connected) {
			DRM_DEBUG("LCD1 connected\n");
			bios_4_scratch |= RADEON_LCD1_ATTACHED;
			bios_5_scratch |= RADEON_LCD1_ON;
			bios_5_scratch |= RADEON_ACC_REQ_LCD1;
		} else {
			DRM_DEBUG("LCD1 disconnected\n");
			bios_4_scratch &= ~RADEON_LCD1_ATTACHED;
			bios_5_scratch &= ~RADEON_LCD1_ON;
			bios_5_scratch &= ~RADEON_ACC_REQ_LCD1;
		}
	}
	if ((radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) &&
	    (radeon_connector->devices & ATOM_DEVICE_CRT1_SUPPORT)) {
		if (connected) {
			DRM_DEBUG("CRT1 connected\n");
			bios_4_scratch |= RADEON_CRT1_ATTACHED_COLOR;
			bios_5_scratch |= RADEON_CRT1_ON;
			bios_5_scratch |= RADEON_ACC_REQ_CRT1;
		} else {
			DRM_DEBUG("CRT1 disconnected\n");
			bios_4_scratch &= ~RADEON_CRT1_ATTACHED_MASK;
			bios_5_scratch &= ~RADEON_CRT1_ON;
			bios_5_scratch &= ~RADEON_ACC_REQ_CRT1;
		}
	}
	if ((radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) &&
	    (radeon_connector->devices & ATOM_DEVICE_CRT2_SUPPORT)) {
		if (connected) {
			DRM_DEBUG("CRT2 connected\n");
			bios_4_scratch |= RADEON_CRT2_ATTACHED_COLOR;
			bios_5_scratch |= RADEON_CRT2_ON;
			bios_5_scratch |= RADEON_ACC_REQ_CRT2;
		} else {
			DRM_DEBUG("CRT2 disconnected\n");
			bios_4_scratch &= ~RADEON_CRT2_ATTACHED_MASK;
			bios_5_scratch &= ~RADEON_CRT2_ON;
			bios_5_scratch &= ~RADEON_ACC_REQ_CRT2;
		}
	}
	if ((radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) &&
	    (radeon_connector->devices & ATOM_DEVICE_DFP1_SUPPORT)) {
		if (connected) {
			DRM_DEBUG("DFP1 connected\n");
			bios_4_scratch |= RADEON_DFP1_ATTACHED;
			bios_5_scratch |= RADEON_DFP1_ON;
			bios_5_scratch |= RADEON_ACC_REQ_DFP1;
		} else {
			DRM_DEBUG("DFP1 disconnected\n");
			bios_4_scratch &= ~RADEON_DFP1_ATTACHED;
			bios_5_scratch &= ~RADEON_DFP1_ON;
			bios_5_scratch &= ~RADEON_ACC_REQ_DFP1;
		}
	}
	if ((radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) &&
	    (radeon_connector->devices & ATOM_DEVICE_DFP2_SUPPORT)) {
		if (connected) {
			DRM_DEBUG("DFP2 connected\n");
			bios_4_scratch |= RADEON_DFP2_ATTACHED;
			bios_5_scratch |= RADEON_DFP2_ON;
			bios_5_scratch |= RADEON_ACC_REQ_DFP2;
		} else {
			DRM_DEBUG("DFP2 disconnected\n");
			bios_4_scratch &= ~RADEON_DFP2_ATTACHED;
			bios_5_scratch &= ~RADEON_DFP2_ON;
			bios_5_scratch &= ~RADEON_ACC_REQ_DFP2;
		}
	}
	WREG32(RADEON_BIOS_4_SCRATCH, bios_4_scratch);
	WREG32(RADEON_BIOS_5_SCRATCH, bios_5_scratch);
}

void
radeon_combios_encoder_crtc_scratch_regs(struct drm_encoder *encoder, int crtc)
{
	struct drm_device *dev = encoder->dev;
	struct radeon_device *rdev = dev->dev_private;
	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
	uint32_t bios_5_scratch = RREG32(RADEON_BIOS_5_SCRATCH);

	if (radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) {
		bios_5_scratch &= ~RADEON_TV1_CRTC_MASK;
		bios_5_scratch |= (crtc << RADEON_TV1_CRTC_SHIFT);
	}
	if (radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) {
		bios_5_scratch &= ~RADEON_CRT1_CRTC_MASK;
		bios_5_scratch |= (crtc << RADEON_CRT1_CRTC_SHIFT);
	}
	if (radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) {
		bios_5_scratch &= ~RADEON_CRT2_CRTC_MASK;
		bios_5_scratch |= (crtc << RADEON_CRT2_CRTC_SHIFT);
	}
	if (radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) {
		bios_5_scratch &= ~RADEON_LCD1_CRTC_MASK;
		bios_5_scratch |= (crtc << RADEON_LCD1_CRTC_SHIFT);
	}
	if (radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) {
		bios_5_scratch &= ~RADEON_DFP1_CRTC_MASK;
		bios_5_scratch |= (crtc << RADEON_DFP1_CRTC_SHIFT);
	}
	if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) {
		bios_5_scratch &= ~RADEON_DFP2_CRTC_MASK;
		bios_5_scratch |= (crtc << RADEON_DFP2_CRTC_SHIFT);
	}
	WREG32(RADEON_BIOS_5_SCRATCH, bios_5_scratch);
}

void
radeon_combios_encoder_dpms_scratch_regs(struct drm_encoder *encoder, bool on)
{
	struct drm_device *dev = encoder->dev;
	struct radeon_device *rdev = dev->dev_private;
	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
	uint32_t bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);

	if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
		if (on)
			bios_6_scratch |= RADEON_TV_DPMS_ON;
		else
			bios_6_scratch &= ~RADEON_TV_DPMS_ON;
	}
	if (radeon_encoder->devices & (ATOM_DEVICE_CRT_SUPPORT)) {
		if (on)
			bios_6_scratch |= RADEON_CRT_DPMS_ON;
		else
			bios_6_scratch &= ~RADEON_CRT_DPMS_ON;
	}
	if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
		if (on)
			bios_6_scratch |= RADEON_LCD_DPMS_ON;
		else
			bios_6_scratch &= ~RADEON_LCD_DPMS_ON;
	}
	if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
		if (on)
			bios_6_scratch |= RADEON_DFP_DPMS_ON;
		else
			bios_6_scratch &= ~RADEON_DFP_DPMS_ON;
	}
	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
}