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[pohmelfs.git] / drivers / video / aty / radeon_pm.c
blob92bda58485165a55ac2acc711ddfed5781bf49fe
1 /*
2 * drivers/video/aty/radeon_pm.c
3 *
4 * Copyright 2003,2004 Ben. Herrenschmidt <benh@kernel.crashing.org>
5 * Copyright 2004 Paul Mackerras <paulus@samba.org>
6 *
7 * This is the power management code for ATI radeon chipsets. It contains
8 * some dynamic clock PM enable/disable code similar to what X.org does,
9 * some D2-state (APM-style) sleep/wakeup code for use on some PowerMacs,
10 * and the necessary bits to re-initialize from scratch a few chips found
11 * on PowerMacs as well. The later could be extended to more platforms
12 * provided the memory controller configuration code be made more generic,
13 * and you can get the proper mode register commands for your RAMs.
14 * Those things may be found in the BIOS image...
15 */
16
17 #include "radeonfb.h"
18
19 #include <linux/console.h>
20 #include <linux/agp_backend.h>
21
22 #ifdef CONFIG_PPC_PMAC
23 #include <asm/machdep.h>
24 #include <asm/prom.h>
25 #include <asm/pmac_feature.h>
26 #endif
27
28 #include "ati_ids.h"
29
30 /*
31 * Workarounds for bugs in PC laptops:
32 * - enable D2 sleep in some IBM Thinkpads
33 * - special case for Samsung P35
34 *
35 * Whitelist by subsystem vendor/device because
36 * its the subsystem vendor's fault!
37 */
38
39 #if defined(CONFIG_PM) && defined(CONFIG_X86)
40 static void radeon_reinitialize_M10(struct radeonfb_info *rinfo);
41
42 struct radeon_device_id {
43 const char *ident; /* (arbitrary) Name */
44 const unsigned short subsystem_vendor; /* Subsystem Vendor ID */
45 const unsigned short subsystem_device; /* Subsystem Device ID */
46 const enum radeon_pm_mode pm_mode_modifier; /* modify pm_mode */
47 const reinit_function_ptr new_reinit_func; /* changed reinit_func */
48 };
49
50 #define BUGFIX(model, sv, sd, pm, fn) { \
51 .ident = model, \
52 .subsystem_vendor = sv, \
53 .subsystem_device = sd, \
54 .pm_mode_modifier = pm, \
55 .new_reinit_func = fn \
56 }
57
58 static struct radeon_device_id radeon_workaround_list[] = {
59 BUGFIX("IBM Thinkpad R32",
60 PCI_VENDOR_ID_IBM, 0x1905,
61 radeon_pm_d2, NULL),
62 BUGFIX("IBM Thinkpad R40",
63 PCI_VENDOR_ID_IBM, 0x0526,
64 radeon_pm_d2, NULL),
65 BUGFIX("IBM Thinkpad R40",
66 PCI_VENDOR_ID_IBM, 0x0527,
67 radeon_pm_d2, NULL),
68 BUGFIX("IBM Thinkpad R50/R51/T40/T41",
69 PCI_VENDOR_ID_IBM, 0x0531,
70 radeon_pm_d2, NULL),
71 BUGFIX("IBM Thinkpad R51/T40/T41/T42",
72 PCI_VENDOR_ID_IBM, 0x0530,
73 radeon_pm_d2, NULL),
74 BUGFIX("IBM Thinkpad T30",
75 PCI_VENDOR_ID_IBM, 0x0517,
76 radeon_pm_d2, NULL),
77 BUGFIX("IBM Thinkpad T40p",
78 PCI_VENDOR_ID_IBM, 0x054d,
79 radeon_pm_d2, NULL),
80 BUGFIX("IBM Thinkpad T42",
81 PCI_VENDOR_ID_IBM, 0x0550,
82 radeon_pm_d2, NULL),
83 BUGFIX("IBM Thinkpad X31/X32",
84 PCI_VENDOR_ID_IBM, 0x052f,
85 radeon_pm_d2, NULL),
86 BUGFIX("Samsung P35",
87 PCI_VENDOR_ID_SAMSUNG, 0xc00c,
88 radeon_pm_off, radeon_reinitialize_M10),
89 BUGFIX("Acer Aspire 2010",
90 PCI_VENDOR_ID_AI, 0x0061,
91 radeon_pm_off, radeon_reinitialize_M10),
92 BUGFIX("Acer Travelmate 290D/292LMi",
93 PCI_VENDOR_ID_AI, 0x005a,
94 radeon_pm_off, radeon_reinitialize_M10),
95 { .ident = NULL }
96 };
97
98 static int radeon_apply_workarounds(struct radeonfb_info *rinfo)
99 {
100 struct radeon_device_id *id;
101
102 for (id = radeon_workaround_list; id->ident != NULL; id++ )
103 if ((id->subsystem_vendor == rinfo->pdev->subsystem_vendor ) &&
104 (id->subsystem_device == rinfo->pdev->subsystem_device )) {
105
106 /* we found a device that requires workaround */
107 printk(KERN_DEBUG "radeonfb: %s detected"
108 ", enabling workaround\n", id->ident);
109
110 rinfo->pm_mode |= id->pm_mode_modifier;
111
112 if (id->new_reinit_func != NULL)
113 rinfo->reinit_func = id->new_reinit_func;
114
115 return 1;
116 }
117 return 0; /* not found */
118 }
119
120 #else /* defined(CONFIG_PM) && defined(CONFIG_X86) */
121 static inline int radeon_apply_workarounds(struct radeonfb_info *rinfo)
122 {
123 return 0;
124 }
125 #endif /* defined(CONFIG_PM) && defined(CONFIG_X86) */
126
127
128
129 static void radeon_pm_disable_dynamic_mode(struct radeonfb_info *rinfo)
130 {
131 u32 tmp;
132
133 /* RV100 */
134 if ((rinfo->family == CHIP_FAMILY_RV100) && (!rinfo->is_mobility)) {
135 if (rinfo->has_CRTC2) {
136 tmp = INPLL(pllSCLK_CNTL);
137 tmp &= ~SCLK_CNTL__DYN_STOP_LAT_MASK;
138 tmp |= SCLK_CNTL__CP_MAX_DYN_STOP_LAT | SCLK_CNTL__FORCEON_MASK;
139 OUTPLL(pllSCLK_CNTL, tmp);
140 }
141 tmp = INPLL(pllMCLK_CNTL);
142 tmp |= (MCLK_CNTL__FORCE_MCLKA |
143 MCLK_CNTL__FORCE_MCLKB |
144 MCLK_CNTL__FORCE_YCLKA |
145 MCLK_CNTL__FORCE_YCLKB |
146 MCLK_CNTL__FORCE_AIC |
147 MCLK_CNTL__FORCE_MC);
148 OUTPLL(pllMCLK_CNTL, tmp);
149 return;
150 }
151 /* R100 */
152 if (!rinfo->has_CRTC2) {
153 tmp = INPLL(pllSCLK_CNTL);
154 tmp |= (SCLK_CNTL__FORCE_CP | SCLK_CNTL__FORCE_HDP |
155 SCLK_CNTL__FORCE_DISP1 | SCLK_CNTL__FORCE_TOP |
156 SCLK_CNTL__FORCE_E2 | SCLK_CNTL__FORCE_SE |
157 SCLK_CNTL__FORCE_IDCT | SCLK_CNTL__FORCE_VIP |
158 SCLK_CNTL__FORCE_RE | SCLK_CNTL__FORCE_PB |
159 SCLK_CNTL__FORCE_TAM | SCLK_CNTL__FORCE_TDM |
160 SCLK_CNTL__FORCE_RB);
161 OUTPLL(pllSCLK_CNTL, tmp);
162 return;
163 }
164 /* RV350 (M10/M11) */
165 if (rinfo->family == CHIP_FAMILY_RV350) {
166 /* for RV350/M10/M11, no delays are required. */
167 tmp = INPLL(pllSCLK_CNTL2);
168 tmp |= (SCLK_CNTL2__R300_FORCE_TCL |
169 SCLK_CNTL2__R300_FORCE_GA |
170 SCLK_CNTL2__R300_FORCE_CBA);
171 OUTPLL(pllSCLK_CNTL2, tmp);
172
173 tmp = INPLL(pllSCLK_CNTL);
174 tmp |= (SCLK_CNTL__FORCE_DISP2 | SCLK_CNTL__FORCE_CP |
175 SCLK_CNTL__FORCE_HDP | SCLK_CNTL__FORCE_DISP1 |
176 SCLK_CNTL__FORCE_TOP | SCLK_CNTL__FORCE_E2 |
177 SCLK_CNTL__R300_FORCE_VAP | SCLK_CNTL__FORCE_IDCT |
178 SCLK_CNTL__FORCE_VIP | SCLK_CNTL__R300_FORCE_SR |
179 SCLK_CNTL__R300_FORCE_PX | SCLK_CNTL__R300_FORCE_TX |
180 SCLK_CNTL__R300_FORCE_US | SCLK_CNTL__FORCE_TV_SCLK |
181 SCLK_CNTL__R300_FORCE_SU | SCLK_CNTL__FORCE_OV0);
182 OUTPLL(pllSCLK_CNTL, tmp);
183
184 tmp = INPLL(pllSCLK_MORE_CNTL);
185 tmp |= (SCLK_MORE_CNTL__FORCE_DISPREGS | SCLK_MORE_CNTL__FORCE_MC_GUI |
186 SCLK_MORE_CNTL__FORCE_MC_HOST);
187 OUTPLL(pllSCLK_MORE_CNTL, tmp);
188
189 tmp = INPLL(pllMCLK_CNTL);
190 tmp |= (MCLK_CNTL__FORCE_MCLKA |
191 MCLK_CNTL__FORCE_MCLKB |
192 MCLK_CNTL__FORCE_YCLKA |
193 MCLK_CNTL__FORCE_YCLKB |
194 MCLK_CNTL__FORCE_MC);
195 OUTPLL(pllMCLK_CNTL, tmp);
196
197 tmp = INPLL(pllVCLK_ECP_CNTL);
198 tmp &= ~(VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb |
199 VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb |
200 VCLK_ECP_CNTL__R300_DISP_DAC_PIXCLK_DAC_BLANK_OFF);
201 OUTPLL(pllVCLK_ECP_CNTL, tmp);
202
203 tmp = INPLL(pllPIXCLKS_CNTL);
204 tmp &= ~(PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb |
205 PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb |
206 PIXCLKS_CNTL__DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
207 PIXCLKS_CNTL__R300_DVOCLK_ALWAYS_ONb |
208 PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb |
209 PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb |
210 PIXCLKS_CNTL__R300_PIXCLK_DVO_ALWAYS_ONb |
211 PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb |
212 PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb |
213 PIXCLKS_CNTL__R300_PIXCLK_TRANS_ALWAYS_ONb |
214 PIXCLKS_CNTL__R300_PIXCLK_TVO_ALWAYS_ONb |
215 PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb |
216 PIXCLKS_CNTL__R300_DISP_DAC_PIXCLK_DAC2_BLANK_OFF);
217 OUTPLL(pllPIXCLKS_CNTL, tmp);
218
219 return;
220 }
221
222 /* Default */
223
224 /* Force Core Clocks */
225 tmp = INPLL(pllSCLK_CNTL);
226 tmp |= (SCLK_CNTL__FORCE_CP | SCLK_CNTL__FORCE_E2);
227
228 /* XFree doesn't do that case, but we had this code from Apple and it
229 * seem necessary for proper suspend/resume operations
230 */
231 if (rinfo->is_mobility) {
232 tmp |= SCLK_CNTL__FORCE_HDP|
233 SCLK_CNTL__FORCE_DISP1|
234 SCLK_CNTL__FORCE_DISP2|
235 SCLK_CNTL__FORCE_TOP|
236 SCLK_CNTL__FORCE_SE|
237 SCLK_CNTL__FORCE_IDCT|
238 SCLK_CNTL__FORCE_VIP|
239 SCLK_CNTL__FORCE_PB|
240 SCLK_CNTL__FORCE_RE|
241 SCLK_CNTL__FORCE_TAM|
242 SCLK_CNTL__FORCE_TDM|
243 SCLK_CNTL__FORCE_RB|
244 SCLK_CNTL__FORCE_TV_SCLK|
245 SCLK_CNTL__FORCE_SUBPIC|
246 SCLK_CNTL__FORCE_OV0;
247 }
248 else if (rinfo->family == CHIP_FAMILY_R300 ||
249 rinfo->family == CHIP_FAMILY_R350) {
250 tmp |= SCLK_CNTL__FORCE_HDP |
251 SCLK_CNTL__FORCE_DISP1 |
252 SCLK_CNTL__FORCE_DISP2 |
253 SCLK_CNTL__FORCE_TOP |
254 SCLK_CNTL__FORCE_IDCT |
255 SCLK_CNTL__FORCE_VIP;
256 }
257 OUTPLL(pllSCLK_CNTL, tmp);
258 radeon_msleep(16);
259
260 if (rinfo->family == CHIP_FAMILY_R300 || rinfo->family == CHIP_FAMILY_R350) {
261 tmp = INPLL(pllSCLK_CNTL2);
262 tmp |= SCLK_CNTL2__R300_FORCE_TCL |
263 SCLK_CNTL2__R300_FORCE_GA |
264 SCLK_CNTL2__R300_FORCE_CBA;
265 OUTPLL(pllSCLK_CNTL2, tmp);
266 radeon_msleep(16);
267 }
268
269 tmp = INPLL(pllCLK_PIN_CNTL);
270 tmp &= ~CLK_PIN_CNTL__SCLK_DYN_START_CNTL;
271 OUTPLL(pllCLK_PIN_CNTL, tmp);
272 radeon_msleep(15);
273
274 if (rinfo->is_IGP) {
275 /* Weird ... X is _un_ forcing clocks here, I think it's
276 * doing backward. Imitate it for now...
277 */
278 tmp = INPLL(pllMCLK_CNTL);
279 tmp &= ~(MCLK_CNTL__FORCE_MCLKA |
280 MCLK_CNTL__FORCE_YCLKA);
281 OUTPLL(pllMCLK_CNTL, tmp);
282 radeon_msleep(16);
283 }
284 /* Hrm... same shit, X doesn't do that but I have to */
285 else if (rinfo->is_mobility) {
286 tmp = INPLL(pllMCLK_CNTL);
287 tmp |= (MCLK_CNTL__FORCE_MCLKA |
288 MCLK_CNTL__FORCE_MCLKB |
289 MCLK_CNTL__FORCE_YCLKA |
290 MCLK_CNTL__FORCE_YCLKB);
291 OUTPLL(pllMCLK_CNTL, tmp);
292 radeon_msleep(16);
293
294 tmp = INPLL(pllMCLK_MISC);
295 tmp &= ~(MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT|
296 MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT|
297 MCLK_MISC__MC_MCLK_DYN_ENABLE|
298 MCLK_MISC__IO_MCLK_DYN_ENABLE);
299 OUTPLL(pllMCLK_MISC, tmp);
300 radeon_msleep(15);
301 }
302
303 if (rinfo->is_mobility) {
304 tmp = INPLL(pllSCLK_MORE_CNTL);
305 tmp |= SCLK_MORE_CNTL__FORCE_DISPREGS|
306 SCLK_MORE_CNTL__FORCE_MC_GUI|
307 SCLK_MORE_CNTL__FORCE_MC_HOST;
308 OUTPLL(pllSCLK_MORE_CNTL, tmp);
309 radeon_msleep(16);
310 }
311
312 tmp = INPLL(pllPIXCLKS_CNTL);
313 tmp &= ~(PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb |
314 PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb|
315 PIXCLKS_CNTL__PIXCLK_DIG_TMDS_ALWAYS_ONb |
316 PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb|
317 PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb|
318 PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb|
319 PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb);
320 OUTPLL(pllPIXCLKS_CNTL, tmp);
321 radeon_msleep(16);
322
323 tmp = INPLL( pllVCLK_ECP_CNTL);
324 tmp &= ~(VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb |
325 VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb);
326 OUTPLL( pllVCLK_ECP_CNTL, tmp);
327 radeon_msleep(16);
328 }
329
330 static void radeon_pm_enable_dynamic_mode(struct radeonfb_info *rinfo)
331 {
332 u32 tmp;
333
334 /* R100 */
335 if (!rinfo->has_CRTC2) {
336 tmp = INPLL(pllSCLK_CNTL);
337
338 if ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) > CFG_ATI_REV_A13)
339 tmp &= ~(SCLK_CNTL__FORCE_CP | SCLK_CNTL__FORCE_RB);
340 tmp &= ~(SCLK_CNTL__FORCE_HDP | SCLK_CNTL__FORCE_DISP1 |
341 SCLK_CNTL__FORCE_TOP | SCLK_CNTL__FORCE_SE |
342 SCLK_CNTL__FORCE_IDCT | SCLK_CNTL__FORCE_RE |
343 SCLK_CNTL__FORCE_PB | SCLK_CNTL__FORCE_TAM |
344 SCLK_CNTL__FORCE_TDM);
345 OUTPLL(pllSCLK_CNTL, tmp);
346 return;
347 }
348
349 /* M10/M11 */
350 if (rinfo->family == CHIP_FAMILY_RV350) {
351 tmp = INPLL(pllSCLK_CNTL2);
352 tmp &= ~(SCLK_CNTL2__R300_FORCE_TCL |
353 SCLK_CNTL2__R300_FORCE_GA |
354 SCLK_CNTL2__R300_FORCE_CBA);
355 tmp |= (SCLK_CNTL2__R300_TCL_MAX_DYN_STOP_LAT |
356 SCLK_CNTL2__R300_GA_MAX_DYN_STOP_LAT |
357 SCLK_CNTL2__R300_CBA_MAX_DYN_STOP_LAT);
358 OUTPLL(pllSCLK_CNTL2, tmp);
359
360 tmp = INPLL(pllSCLK_CNTL);
361 tmp &= ~(SCLK_CNTL__FORCE_DISP2 | SCLK_CNTL__FORCE_CP |
362 SCLK_CNTL__FORCE_HDP | SCLK_CNTL__FORCE_DISP1 |
363 SCLK_CNTL__FORCE_TOP | SCLK_CNTL__FORCE_E2 |
364 SCLK_CNTL__R300_FORCE_VAP | SCLK_CNTL__FORCE_IDCT |
365 SCLK_CNTL__FORCE_VIP | SCLK_CNTL__R300_FORCE_SR |
366 SCLK_CNTL__R300_FORCE_PX | SCLK_CNTL__R300_FORCE_TX |
367 SCLK_CNTL__R300_FORCE_US | SCLK_CNTL__FORCE_TV_SCLK |
368 SCLK_CNTL__R300_FORCE_SU | SCLK_CNTL__FORCE_OV0);
369 tmp |= SCLK_CNTL__DYN_STOP_LAT_MASK;
370 OUTPLL(pllSCLK_CNTL, tmp);
371
372 tmp = INPLL(pllSCLK_MORE_CNTL);
373 tmp &= ~SCLK_MORE_CNTL__FORCEON;
374 tmp |= SCLK_MORE_CNTL__DISPREGS_MAX_DYN_STOP_LAT |
375 SCLK_MORE_CNTL__MC_GUI_MAX_DYN_STOP_LAT |
376 SCLK_MORE_CNTL__MC_HOST_MAX_DYN_STOP_LAT;
377 OUTPLL(pllSCLK_MORE_CNTL, tmp);
378
379 tmp = INPLL(pllVCLK_ECP_CNTL);
380 tmp |= (VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb |
381 VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb);
382 OUTPLL(pllVCLK_ECP_CNTL, tmp);
383
384 tmp = INPLL(pllPIXCLKS_CNTL);
385 tmp |= (PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb |
386 PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb |
387 PIXCLKS_CNTL__DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
388 PIXCLKS_CNTL__R300_DVOCLK_ALWAYS_ONb |
389 PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb |
390 PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb |
391 PIXCLKS_CNTL__R300_PIXCLK_DVO_ALWAYS_ONb |
392 PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb |
393 PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb |
394 PIXCLKS_CNTL__R300_PIXCLK_TRANS_ALWAYS_ONb |
395 PIXCLKS_CNTL__R300_PIXCLK_TVO_ALWAYS_ONb |
396 PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb |
397 PIXCLKS_CNTL__R300_P2G2CLK_DAC_ALWAYS_ONb);
398 OUTPLL(pllPIXCLKS_CNTL, tmp);
399
400 tmp = INPLL(pllMCLK_MISC);
401 tmp |= (MCLK_MISC__MC_MCLK_DYN_ENABLE |
402 MCLK_MISC__IO_MCLK_DYN_ENABLE);
403 OUTPLL(pllMCLK_MISC, tmp);
404
405 tmp = INPLL(pllMCLK_CNTL);
406 tmp |= (MCLK_CNTL__FORCE_MCLKA | MCLK_CNTL__FORCE_MCLKB);
407 tmp &= ~(MCLK_CNTL__FORCE_YCLKA |
408 MCLK_CNTL__FORCE_YCLKB |
409 MCLK_CNTL__FORCE_MC);
410
411 /* Some releases of vbios have set DISABLE_MC_MCLKA
412 * and DISABLE_MC_MCLKB bits in the vbios table. Setting these
413 * bits will cause H/W hang when reading video memory with dynamic
414 * clocking enabled.
415 */
416 if ((tmp & MCLK_CNTL__R300_DISABLE_MC_MCLKA) &&
417 (tmp & MCLK_CNTL__R300_DISABLE_MC_MCLKB)) {
418 /* If both bits are set, then check the active channels */
419 tmp = INPLL(pllMCLK_CNTL);
420 if (rinfo->vram_width == 64) {
421 if (INREG(MEM_CNTL) & R300_MEM_USE_CD_CH_ONLY)
422 tmp &= ~MCLK_CNTL__R300_DISABLE_MC_MCLKB;
423 else
424 tmp &= ~MCLK_CNTL__R300_DISABLE_MC_MCLKA;
425 } else {
426 tmp &= ~(MCLK_CNTL__R300_DISABLE_MC_MCLKA |
427 MCLK_CNTL__R300_DISABLE_MC_MCLKB);
428 }
429 }
430 OUTPLL(pllMCLK_CNTL, tmp);
431 return;
432 }
433
434 /* R300 */
435 if (rinfo->family == CHIP_FAMILY_R300 || rinfo->family == CHIP_FAMILY_R350) {
436 tmp = INPLL(pllSCLK_CNTL);
437 tmp &= ~(SCLK_CNTL__R300_FORCE_VAP);
438 tmp |= SCLK_CNTL__FORCE_CP;
439 OUTPLL(pllSCLK_CNTL, tmp);
440 radeon_msleep(15);
441
442 tmp = INPLL(pllSCLK_CNTL2);
443 tmp &= ~(SCLK_CNTL2__R300_FORCE_TCL |
444 SCLK_CNTL2__R300_FORCE_GA |
445 SCLK_CNTL2__R300_FORCE_CBA);
446 OUTPLL(pllSCLK_CNTL2, tmp);
447 }
448
449 /* Others */
450
451 tmp = INPLL( pllCLK_PWRMGT_CNTL);
452 tmp &= ~(CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK|
453 CLK_PWRMGT_CNTL__DISP_DYN_STOP_LAT_MASK|
454 CLK_PWRMGT_CNTL__DYN_STOP_MODE_MASK);
455 tmp |= CLK_PWRMGT_CNTL__ENGINE_DYNCLK_MODE_MASK |
456 (0x01 << CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT__SHIFT);
457 OUTPLL( pllCLK_PWRMGT_CNTL, tmp);
458 radeon_msleep(15);
459
460 tmp = INPLL(pllCLK_PIN_CNTL);
461 tmp |= CLK_PIN_CNTL__SCLK_DYN_START_CNTL;
462 OUTPLL(pllCLK_PIN_CNTL, tmp);
463 radeon_msleep(15);
464
465 /* When DRI is enabled, setting DYN_STOP_LAT to zero can cause some R200
466 * to lockup randomly, leave them as set by BIOS.
467 */
468 tmp = INPLL(pllSCLK_CNTL);
469 tmp &= ~SCLK_CNTL__FORCEON_MASK;
470
471 /*RAGE_6::A11 A12 A12N1 A13, RV250::A11 A12, R300*/
472 if ((rinfo->family == CHIP_FAMILY_RV250 &&
473 ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) < CFG_ATI_REV_A13)) ||
474 ((rinfo->family == CHIP_FAMILY_RV100) &&
475 ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) <= CFG_ATI_REV_A13))) {
476 tmp |= SCLK_CNTL__FORCE_CP;
477 tmp |= SCLK_CNTL__FORCE_VIP;
478 }
479 OUTPLL(pllSCLK_CNTL, tmp);
480 radeon_msleep(15);
481
482 if ((rinfo->family == CHIP_FAMILY_RV200) ||
483 (rinfo->family == CHIP_FAMILY_RV250) ||
484 (rinfo->family == CHIP_FAMILY_RV280)) {
485 tmp = INPLL(pllSCLK_MORE_CNTL);
486 tmp &= ~SCLK_MORE_CNTL__FORCEON;
487
488 /* RV200::A11 A12 RV250::A11 A12 */
489 if (((rinfo->family == CHIP_FAMILY_RV200) ||
490 (rinfo->family == CHIP_FAMILY_RV250)) &&
491 ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) < CFG_ATI_REV_A13))
492 tmp |= SCLK_MORE_CNTL__FORCEON;
493
494 OUTPLL(pllSCLK_MORE_CNTL, tmp);
495 radeon_msleep(15);
496 }
497
498
499 /* RV200::A11 A12, RV250::A11 A12 */
500 if (((rinfo->family == CHIP_FAMILY_RV200) ||
501 (rinfo->family == CHIP_FAMILY_RV250)) &&
502 ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) < CFG_ATI_REV_A13)) {
503 tmp = INPLL(pllPLL_PWRMGT_CNTL);
504 tmp |= PLL_PWRMGT_CNTL__TCL_BYPASS_DISABLE;
505 OUTPLL(pllPLL_PWRMGT_CNTL, tmp);
506 radeon_msleep(15);
507 }
508
509 tmp = INPLL(pllPIXCLKS_CNTL);
510 tmp |= PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb |
511 PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb|
512 PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb|
513 PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb|
514 PIXCLKS_CNTL__PIXCLK_DIG_TMDS_ALWAYS_ONb|
515 PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb|
516 PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb;
517 OUTPLL(pllPIXCLKS_CNTL, tmp);
518 radeon_msleep(15);
519
520 tmp = INPLL(pllVCLK_ECP_CNTL);
521 tmp |= VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb |
522 VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb;
523 OUTPLL(pllVCLK_ECP_CNTL, tmp);
524
525 /* X doesn't do that ... hrm, we do on mobility && Macs */
526 #ifdef CONFIG_PPC_OF
527 if (rinfo->is_mobility) {
528 tmp = INPLL(pllMCLK_CNTL);
529 tmp &= ~(MCLK_CNTL__FORCE_MCLKA |
530 MCLK_CNTL__FORCE_MCLKB |
531 MCLK_CNTL__FORCE_YCLKA |
532 MCLK_CNTL__FORCE_YCLKB);
533 OUTPLL(pllMCLK_CNTL, tmp);
534 radeon_msleep(15);
535
536 tmp = INPLL(pllMCLK_MISC);
537 tmp |= MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT|
538 MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT|
539 MCLK_MISC__MC_MCLK_DYN_ENABLE|
540 MCLK_MISC__IO_MCLK_DYN_ENABLE;
541 OUTPLL(pllMCLK_MISC, tmp);
542 radeon_msleep(15);
543 }
544 #endif /* CONFIG_PPC_OF */
545 }
546
547 #ifdef CONFIG_PM
548
549 static void OUTMC( struct radeonfb_info *rinfo, u8 indx, u32 value)
550 {
551 OUTREG( MC_IND_INDEX, indx | MC_IND_INDEX__MC_IND_WR_EN);
552 OUTREG( MC_IND_DATA, value);
553 }
554
555 static u32 INMC(struct radeonfb_info *rinfo, u8 indx)
556 {
557 OUTREG( MC_IND_INDEX, indx);
558 return INREG( MC_IND_DATA);
559 }
560
561 static void radeon_pm_save_regs(struct radeonfb_info *rinfo, int saving_for_d3)
562 {
563 rinfo->save_regs[0] = INPLL(PLL_PWRMGT_CNTL);
564 rinfo->save_regs[1] = INPLL(CLK_PWRMGT_CNTL);
565 rinfo->save_regs[2] = INPLL(MCLK_CNTL);
566 rinfo->save_regs[3] = INPLL(SCLK_CNTL);
567 rinfo->save_regs[4] = INPLL(CLK_PIN_CNTL);
568 rinfo->save_regs[5] = INPLL(VCLK_ECP_CNTL);
569 rinfo->save_regs[6] = INPLL(PIXCLKS_CNTL);
570 rinfo->save_regs[7] = INPLL(MCLK_MISC);
571 rinfo->save_regs[8] = INPLL(P2PLL_CNTL);
572
573 rinfo->save_regs[9] = INREG(DISP_MISC_CNTL);
574 rinfo->save_regs[10] = INREG(DISP_PWR_MAN);
575 rinfo->save_regs[11] = INREG(LVDS_GEN_CNTL);
576 rinfo->save_regs[13] = INREG(TV_DAC_CNTL);
577 rinfo->save_regs[14] = INREG(BUS_CNTL1);
578 rinfo->save_regs[15] = INREG(CRTC_OFFSET_CNTL);
579 rinfo->save_regs[16] = INREG(AGP_CNTL);
580 rinfo->save_regs[17] = (INREG(CRTC_GEN_CNTL) & 0xfdffffff) | 0x04000000;
581 rinfo->save_regs[18] = (INREG(CRTC2_GEN_CNTL) & 0xfdffffff) | 0x04000000;
582 rinfo->save_regs[19] = INREG(GPIOPAD_A);
583 rinfo->save_regs[20] = INREG(GPIOPAD_EN);
584 rinfo->save_regs[21] = INREG(GPIOPAD_MASK);
585 rinfo->save_regs[22] = INREG(ZV_LCDPAD_A);
586 rinfo->save_regs[23] = INREG(ZV_LCDPAD_EN);
587 rinfo->save_regs[24] = INREG(ZV_LCDPAD_MASK);
588 rinfo->save_regs[25] = INREG(GPIO_VGA_DDC);
589 rinfo->save_regs[26] = INREG(GPIO_DVI_DDC);
590 rinfo->save_regs[27] = INREG(GPIO_MONID);
591 rinfo->save_regs[28] = INREG(GPIO_CRT2_DDC);
592
593 rinfo->save_regs[29] = INREG(SURFACE_CNTL);
594 rinfo->save_regs[30] = INREG(MC_FB_LOCATION);
595 rinfo->save_regs[31] = INREG(DISPLAY_BASE_ADDR);
596 rinfo->save_regs[32] = INREG(MC_AGP_LOCATION);
597 rinfo->save_regs[33] = INREG(CRTC2_DISPLAY_BASE_ADDR);
598
599 rinfo->save_regs[34] = INPLL(SCLK_MORE_CNTL);
600 rinfo->save_regs[35] = INREG(MEM_SDRAM_MODE_REG);
601 rinfo->save_regs[36] = INREG(BUS_CNTL);
602 rinfo->save_regs[39] = INREG(RBBM_CNTL);
603 rinfo->save_regs[40] = INREG(DAC_CNTL);
604 rinfo->save_regs[41] = INREG(HOST_PATH_CNTL);
605 rinfo->save_regs[37] = INREG(MPP_TB_CONFIG);
606 rinfo->save_regs[38] = INREG(FCP_CNTL);
607
608 if (rinfo->is_mobility) {
609 rinfo->save_regs[12] = INREG(LVDS_PLL_CNTL);
610 rinfo->save_regs[43] = INPLL(pllSSPLL_CNTL);
611 rinfo->save_regs[44] = INPLL(pllSSPLL_REF_DIV);
612 rinfo->save_regs[45] = INPLL(pllSSPLL_DIV_0);
613 rinfo->save_regs[90] = INPLL(pllSS_INT_CNTL);
614 rinfo->save_regs[91] = INPLL(pllSS_TST_CNTL);
615 rinfo->save_regs[81] = INREG(LVDS_GEN_CNTL);
616 }
617
618 if (rinfo->family >= CHIP_FAMILY_RV200) {
619 rinfo->save_regs[42] = INREG(MEM_REFRESH_CNTL);
620 rinfo->save_regs[46] = INREG(MC_CNTL);
621 rinfo->save_regs[47] = INREG(MC_INIT_GFX_LAT_TIMER);
622 rinfo->save_regs[48] = INREG(MC_INIT_MISC_LAT_TIMER);
623 rinfo->save_regs[49] = INREG(MC_TIMING_CNTL);
624 rinfo->save_regs[50] = INREG(MC_READ_CNTL_AB);
625 rinfo->save_regs[51] = INREG(MC_IOPAD_CNTL);
626 rinfo->save_regs[52] = INREG(MC_CHIP_IO_OE_CNTL_AB);
627 rinfo->save_regs[53] = INREG(MC_DEBUG);
628 }
629 rinfo->save_regs[54] = INREG(PAMAC0_DLY_CNTL);
630 rinfo->save_regs[55] = INREG(PAMAC1_DLY_CNTL);
631 rinfo->save_regs[56] = INREG(PAD_CTLR_MISC);
632 rinfo->save_regs[57] = INREG(FW_CNTL);
633
634 if (rinfo->family >= CHIP_FAMILY_R300) {
635 rinfo->save_regs[58] = INMC(rinfo, ixR300_MC_MC_INIT_WR_LAT_TIMER);
636 rinfo->save_regs[59] = INMC(rinfo, ixR300_MC_IMP_CNTL);
637 rinfo->save_regs[60] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_C0);
638 rinfo->save_regs[61] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_C1);
639 rinfo->save_regs[62] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_D0);
640 rinfo->save_regs[63] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_D1);
641 rinfo->save_regs[64] = INMC(rinfo, ixR300_MC_BIST_CNTL_3);
642 rinfo->save_regs[65] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_A0);
643 rinfo->save_regs[66] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_A1);
644 rinfo->save_regs[67] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_B0);
645 rinfo->save_regs[68] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_B1);
646 rinfo->save_regs[69] = INMC(rinfo, ixR300_MC_DEBUG_CNTL);
647 rinfo->save_regs[70] = INMC(rinfo, ixR300_MC_DLL_CNTL);
648 rinfo->save_regs[71] = INMC(rinfo, ixR300_MC_IMP_CNTL_0);
649 rinfo->save_regs[72] = INMC(rinfo, ixR300_MC_ELPIDA_CNTL);
650 rinfo->save_regs[96] = INMC(rinfo, ixR300_MC_READ_CNTL_CD);
651 } else {
652 rinfo->save_regs[59] = INMC(rinfo, ixMC_IMP_CNTL);
653 rinfo->save_regs[65] = INMC(rinfo, ixMC_CHP_IO_CNTL_A0);
654 rinfo->save_regs[66] = INMC(rinfo, ixMC_CHP_IO_CNTL_A1);
655 rinfo->save_regs[67] = INMC(rinfo, ixMC_CHP_IO_CNTL_B0);
656 rinfo->save_regs[68] = INMC(rinfo, ixMC_CHP_IO_CNTL_B1);
657 rinfo->save_regs[71] = INMC(rinfo, ixMC_IMP_CNTL_0);
658 }
659
660 rinfo->save_regs[73] = INPLL(pllMPLL_CNTL);
661 rinfo->save_regs[74] = INPLL(pllSPLL_CNTL);
662 rinfo->save_regs[75] = INPLL(pllMPLL_AUX_CNTL);
663 rinfo->save_regs[76] = INPLL(pllSPLL_AUX_CNTL);
664 rinfo->save_regs[77] = INPLL(pllM_SPLL_REF_FB_DIV);
665 rinfo->save_regs[78] = INPLL(pllAGP_PLL_CNTL);
666 rinfo->save_regs[79] = INREG(PAMAC2_DLY_CNTL);
667
668 rinfo->save_regs[80] = INREG(OV0_BASE_ADDR);
669 rinfo->save_regs[82] = INREG(FP_GEN_CNTL);
670 rinfo->save_regs[83] = INREG(FP2_GEN_CNTL);
671 rinfo->save_regs[84] = INREG(TMDS_CNTL);
672 rinfo->save_regs[85] = INREG(TMDS_TRANSMITTER_CNTL);
673 rinfo->save_regs[86] = INREG(DISP_OUTPUT_CNTL);
674 rinfo->save_regs[87] = INREG(DISP_HW_DEBUG);
675 rinfo->save_regs[88] = INREG(TV_MASTER_CNTL);
676 rinfo->save_regs[89] = INPLL(pllP2PLL_REF_DIV);
677 rinfo->save_regs[92] = INPLL(pllPPLL_DIV_0);
678 rinfo->save_regs[93] = INPLL(pllPPLL_CNTL);
679 rinfo->save_regs[94] = INREG(GRPH_BUFFER_CNTL);
680 rinfo->save_regs[95] = INREG(GRPH2_BUFFER_CNTL);
681 rinfo->save_regs[96] = INREG(HDP_DEBUG);
682 rinfo->save_regs[97] = INPLL(pllMDLL_CKO);
683 rinfo->save_regs[98] = INPLL(pllMDLL_RDCKA);
684 rinfo->save_regs[99] = INPLL(pllMDLL_RDCKB);
685 }
686
687 static void radeon_pm_restore_regs(struct radeonfb_info *rinfo)
688 {
689 OUTPLL(P2PLL_CNTL, rinfo->save_regs[8] & 0xFFFFFFFE); /* First */
690
691 OUTPLL(PLL_PWRMGT_CNTL, rinfo->save_regs[0]);
692 OUTPLL(CLK_PWRMGT_CNTL, rinfo->save_regs[1]);
693 OUTPLL(MCLK_CNTL, rinfo->save_regs[2]);
694 OUTPLL(SCLK_CNTL, rinfo->save_regs[3]);
695 OUTPLL(CLK_PIN_CNTL, rinfo->save_regs[4]);
696 OUTPLL(VCLK_ECP_CNTL, rinfo->save_regs[5]);
697 OUTPLL(PIXCLKS_CNTL, rinfo->save_regs[6]);
698 OUTPLL(MCLK_MISC, rinfo->save_regs[7]);
699 if (rinfo->family == CHIP_FAMILY_RV350)
700 OUTPLL(SCLK_MORE_CNTL, rinfo->save_regs[34]);
701
702 OUTREG(SURFACE_CNTL, rinfo->save_regs[29]);
703 OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
704 OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
705 OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
706 OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
707 OUTREG(CNFG_MEMSIZE, rinfo->video_ram);
708
709 OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);
710 OUTREG(DISP_PWR_MAN, rinfo->save_regs[10]);
711 OUTREG(LVDS_GEN_CNTL, rinfo->save_regs[11]);
712 OUTREG(LVDS_PLL_CNTL,rinfo->save_regs[12]);
713 OUTREG(TV_DAC_CNTL, rinfo->save_regs[13]);
714 OUTREG(BUS_CNTL1, rinfo->save_regs[14]);
715 OUTREG(CRTC_OFFSET_CNTL, rinfo->save_regs[15]);
716 OUTREG(AGP_CNTL, rinfo->save_regs[16]);
717 OUTREG(CRTC_GEN_CNTL, rinfo->save_regs[17]);
718 OUTREG(CRTC2_GEN_CNTL, rinfo->save_regs[18]);
719 OUTPLL(P2PLL_CNTL, rinfo->save_regs[8]);
720
721 OUTREG(GPIOPAD_A, rinfo->save_regs[19]);
722 OUTREG(GPIOPAD_EN, rinfo->save_regs[20]);
723 OUTREG(GPIOPAD_MASK, rinfo->save_regs[21]);
724 OUTREG(ZV_LCDPAD_A, rinfo->save_regs[22]);
725 OUTREG(ZV_LCDPAD_EN, rinfo->save_regs[23]);
726 OUTREG(ZV_LCDPAD_MASK, rinfo->save_regs[24]);
727 OUTREG(GPIO_VGA_DDC, rinfo->save_regs[25]);
728 OUTREG(GPIO_DVI_DDC, rinfo->save_regs[26]);
729 OUTREG(GPIO_MONID, rinfo->save_regs[27]);
730 OUTREG(GPIO_CRT2_DDC, rinfo->save_regs[28]);
731 }
732
733 static void radeon_pm_disable_iopad(struct radeonfb_info *rinfo)
734 {
735 OUTREG(GPIOPAD_MASK, 0x0001ffff);
736 OUTREG(GPIOPAD_EN, 0x00000400);
737 OUTREG(GPIOPAD_A, 0x00000000);
738 OUTREG(ZV_LCDPAD_MASK, 0x00000000);
739 OUTREG(ZV_LCDPAD_EN, 0x00000000);
740 OUTREG(ZV_LCDPAD_A, 0x00000000);
741 OUTREG(GPIO_VGA_DDC, 0x00030000);
742 OUTREG(GPIO_DVI_DDC, 0x00000000);
743 OUTREG(GPIO_MONID, 0x00030000);
744 OUTREG(GPIO_CRT2_DDC, 0x00000000);
745 }
746
747 static void radeon_pm_program_v2clk(struct radeonfb_info *rinfo)
748 {
749 /* Set v2clk to 65MHz */
750 if (rinfo->family <= CHIP_FAMILY_RV280) {
751 OUTPLL(pllPIXCLKS_CNTL,
752 __INPLL(rinfo, pllPIXCLKS_CNTL)
753 & ~PIXCLKS_CNTL__PIX2CLK_SRC_SEL_MASK);
754
755 OUTPLL(pllP2PLL_REF_DIV, 0x0000000c);
756 OUTPLL(pllP2PLL_CNTL, 0x0000bf00);
757 } else {
758 OUTPLL(pllP2PLL_REF_DIV, 0x0000000c);
759 INPLL(pllP2PLL_REF_DIV);
760 OUTPLL(pllP2PLL_CNTL, 0x0000a700);
761 }
762
763 OUTPLL(pllP2PLL_DIV_0, 0x00020074 | P2PLL_DIV_0__P2PLL_ATOMIC_UPDATE_W);
764
765 OUTPLL(pllP2PLL_CNTL, INPLL(pllP2PLL_CNTL) & ~P2PLL_CNTL__P2PLL_SLEEP);
766 mdelay(1);
767
768 OUTPLL(pllP2PLL_CNTL, INPLL(pllP2PLL_CNTL) & ~P2PLL_CNTL__P2PLL_RESET);
769 mdelay( 1);
770
771 OUTPLL(pllPIXCLKS_CNTL,
772 (INPLL(pllPIXCLKS_CNTL) & ~PIXCLKS_CNTL__PIX2CLK_SRC_SEL_MASK)
773 | (0x03 << PIXCLKS_CNTL__PIX2CLK_SRC_SEL__SHIFT));
774 mdelay( 1);
775 }
776
777 static void radeon_pm_low_current(struct radeonfb_info *rinfo)
778 {
779 u32 reg;
780
781 reg = INREG(BUS_CNTL1);
782 if (rinfo->family <= CHIP_FAMILY_RV280) {
783 reg &= ~BUS_CNTL1_MOBILE_PLATFORM_SEL_MASK;
784 reg |= BUS_CNTL1_AGPCLK_VALID | (1<<BUS_CNTL1_MOBILE_PLATFORM_SEL_SHIFT);
785 } else {
786 reg |= 0x4080;
787 }
788 OUTREG(BUS_CNTL1, reg);
789
790 reg = INPLL(PLL_PWRMGT_CNTL);
791 reg |= PLL_PWRMGT_CNTL_SPLL_TURNOFF | PLL_PWRMGT_CNTL_PPLL_TURNOFF |
792 PLL_PWRMGT_CNTL_P2PLL_TURNOFF | PLL_PWRMGT_CNTL_TVPLL_TURNOFF;
793 reg &= ~PLL_PWRMGT_CNTL_SU_MCLK_USE_BCLK;
794 reg &= ~PLL_PWRMGT_CNTL_MOBILE_SU;
795 OUTPLL(PLL_PWRMGT_CNTL, reg);
796
797 reg = INREG(TV_DAC_CNTL);
798 reg &= ~(TV_DAC_CNTL_BGADJ_MASK |TV_DAC_CNTL_DACADJ_MASK);
799 reg |=TV_DAC_CNTL_BGSLEEP | TV_DAC_CNTL_RDACPD | TV_DAC_CNTL_GDACPD |
800 TV_DAC_CNTL_BDACPD |
801 (8<<TV_DAC_CNTL_BGADJ__SHIFT) | (8<<TV_DAC_CNTL_DACADJ__SHIFT);
802 OUTREG(TV_DAC_CNTL, reg);
803
804 reg = INREG(TMDS_TRANSMITTER_CNTL);
805 reg &= ~(TMDS_PLL_EN | TMDS_PLLRST);
806 OUTREG(TMDS_TRANSMITTER_CNTL, reg);
807
808 reg = INREG(DAC_CNTL);
809 reg &= ~DAC_CMP_EN;
810 OUTREG(DAC_CNTL, reg);
811
812 reg = INREG(DAC_CNTL2);
813 reg &= ~DAC2_CMP_EN;
814 OUTREG(DAC_CNTL2, reg);
815
816 reg = INREG(TV_DAC_CNTL);
817 reg &= ~TV_DAC_CNTL_DETECT;
818 OUTREG(TV_DAC_CNTL, reg);
819 }
820
821 static void radeon_pm_setup_for_suspend(struct radeonfb_info *rinfo)
822 {
823
824 u32 sclk_cntl, mclk_cntl, sclk_more_cntl;
825
826 u32 pll_pwrmgt_cntl;
827 u32 clk_pwrmgt_cntl;
828 u32 clk_pin_cntl;
829 u32 vclk_ecp_cntl;
830 u32 pixclks_cntl;
831 u32 disp_mis_cntl;
832 u32 disp_pwr_man;
833 u32 tmp;
834
835 /* Force Core Clocks */
836 sclk_cntl = INPLL( pllSCLK_CNTL);
837 sclk_cntl |= SCLK_CNTL__IDCT_MAX_DYN_STOP_LAT|
838 SCLK_CNTL__VIP_MAX_DYN_STOP_LAT|
839 SCLK_CNTL__RE_MAX_DYN_STOP_LAT|
840 SCLK_CNTL__PB_MAX_DYN_STOP_LAT|
841 SCLK_CNTL__TAM_MAX_DYN_STOP_LAT|
842 SCLK_CNTL__TDM_MAX_DYN_STOP_LAT|
843 SCLK_CNTL__RB_MAX_DYN_STOP_LAT|
844
845 SCLK_CNTL__FORCE_DISP2|
846 SCLK_CNTL__FORCE_CP|
847 SCLK_CNTL__FORCE_HDP|
848 SCLK_CNTL__FORCE_DISP1|
849 SCLK_CNTL__FORCE_TOP|
850 SCLK_CNTL__FORCE_E2|
851 SCLK_CNTL__FORCE_SE|
852 SCLK_CNTL__FORCE_IDCT|
853 SCLK_CNTL__FORCE_VIP|
854
855 SCLK_CNTL__FORCE_PB|
856 SCLK_CNTL__FORCE_TAM|
857 SCLK_CNTL__FORCE_TDM|
858 SCLK_CNTL__FORCE_RB|
859 SCLK_CNTL__FORCE_TV_SCLK|
860 SCLK_CNTL__FORCE_SUBPIC|
861 SCLK_CNTL__FORCE_OV0;
862 if (rinfo->family <= CHIP_FAMILY_RV280)
863 sclk_cntl |= SCLK_CNTL__FORCE_RE;
864 else
865 sclk_cntl |= SCLK_CNTL__SE_MAX_DYN_STOP_LAT |
866 SCLK_CNTL__E2_MAX_DYN_STOP_LAT |
867 SCLK_CNTL__TV_MAX_DYN_STOP_LAT |
868 SCLK_CNTL__HDP_MAX_DYN_STOP_LAT |
869 SCLK_CNTL__CP_MAX_DYN_STOP_LAT;
870
871 OUTPLL( pllSCLK_CNTL, sclk_cntl);
872
873 sclk_more_cntl = INPLL(pllSCLK_MORE_CNTL);
874 sclk_more_cntl |= SCLK_MORE_CNTL__FORCE_DISPREGS |
875 SCLK_MORE_CNTL__FORCE_MC_GUI |
876 SCLK_MORE_CNTL__FORCE_MC_HOST;
877
878 OUTPLL(pllSCLK_MORE_CNTL, sclk_more_cntl);
879
880
881 mclk_cntl = INPLL( pllMCLK_CNTL);
882 mclk_cntl &= ~( MCLK_CNTL__FORCE_MCLKA |
883 MCLK_CNTL__FORCE_MCLKB |
884 MCLK_CNTL__FORCE_YCLKA |
885 MCLK_CNTL__FORCE_YCLKB |
886 MCLK_CNTL__FORCE_MC
887 );
888 OUTPLL( pllMCLK_CNTL, mclk_cntl);
889
890 /* Force Display clocks */
891 vclk_ecp_cntl = INPLL( pllVCLK_ECP_CNTL);
892 vclk_ecp_cntl &= ~(VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb
893 | VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb);
894 vclk_ecp_cntl |= VCLK_ECP_CNTL__ECP_FORCE_ON;
895 OUTPLL( pllVCLK_ECP_CNTL, vclk_ecp_cntl);
896
897
898 pixclks_cntl = INPLL( pllPIXCLKS_CNTL);
899 pixclks_cntl &= ~( PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb |
900 PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb|
901 PIXCLKS_CNTL__PIXCLK_DIG_TMDS_ALWAYS_ONb |
902 PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb|
903 PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb|
904 PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb|
905 PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb);
906
907 OUTPLL( pllPIXCLKS_CNTL, pixclks_cntl);
908
909 /* Switch off LVDS interface */
910 OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) &
911 ~(LVDS_BLON | LVDS_EN | LVDS_ON | LVDS_DIGON));
912
913 /* Enable System power management */
914 pll_pwrmgt_cntl = INPLL( pllPLL_PWRMGT_CNTL);
915
916 pll_pwrmgt_cntl |= PLL_PWRMGT_CNTL__SPLL_TURNOFF |
917 PLL_PWRMGT_CNTL__MPLL_TURNOFF|
918 PLL_PWRMGT_CNTL__PPLL_TURNOFF|
919 PLL_PWRMGT_CNTL__P2PLL_TURNOFF|
920 PLL_PWRMGT_CNTL__TVPLL_TURNOFF;
921
922 OUTPLL( pllPLL_PWRMGT_CNTL, pll_pwrmgt_cntl);
923
924 clk_pwrmgt_cntl = INPLL( pllCLK_PWRMGT_CNTL);
925
926 clk_pwrmgt_cntl &= ~( CLK_PWRMGT_CNTL__MPLL_PWRMGT_OFF|
927 CLK_PWRMGT_CNTL__SPLL_PWRMGT_OFF|
928 CLK_PWRMGT_CNTL__PPLL_PWRMGT_OFF|
929 CLK_PWRMGT_CNTL__P2PLL_PWRMGT_OFF|
930 CLK_PWRMGT_CNTL__MCLK_TURNOFF|
931 CLK_PWRMGT_CNTL__SCLK_TURNOFF|
932 CLK_PWRMGT_CNTL__PCLK_TURNOFF|
933 CLK_PWRMGT_CNTL__P2CLK_TURNOFF|
934 CLK_PWRMGT_CNTL__TVPLL_PWRMGT_OFF|
935 CLK_PWRMGT_CNTL__GLOBAL_PMAN_EN|
936 CLK_PWRMGT_CNTL__ENGINE_DYNCLK_MODE|
937 CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK|
938 CLK_PWRMGT_CNTL__CG_NO1_DEBUG_MASK
939 );
940
941 clk_pwrmgt_cntl |= CLK_PWRMGT_CNTL__GLOBAL_PMAN_EN
942 | CLK_PWRMGT_CNTL__DISP_PM;
943
944 OUTPLL( pllCLK_PWRMGT_CNTL, clk_pwrmgt_cntl);
945
946 clk_pin_cntl = INPLL( pllCLK_PIN_CNTL);
947
948 clk_pin_cntl &= ~CLK_PIN_CNTL__ACCESS_REGS_IN_SUSPEND;
949
950 /* because both INPLL and OUTPLL take the same lock, that's why. */
951 tmp = INPLL( pllMCLK_MISC) | MCLK_MISC__EN_MCLK_TRISTATE_IN_SUSPEND;
952 OUTPLL( pllMCLK_MISC, tmp);
953
954 /* BUS_CNTL1__MOBILE_PLATORM_SEL setting is northbridge chipset
955 * and radeon chip dependent. Thus we only enable it on Mac for
956 * now (until we get more info on how to compute the correct
957 * value for various X86 bridges).
958 */
959 #ifdef CONFIG_PPC_PMAC
960 if (machine_is(powermac)) {
961 /* AGP PLL control */
962 if (rinfo->family <= CHIP_FAMILY_RV280) {
963 OUTREG(BUS_CNTL1, INREG(BUS_CNTL1) | BUS_CNTL1__AGPCLK_VALID);
964 OUTREG(BUS_CNTL1,
965 (INREG(BUS_CNTL1) & ~BUS_CNTL1__MOBILE_PLATFORM_SEL_MASK)
966 | (2<<BUS_CNTL1__MOBILE_PLATFORM_SEL__SHIFT)); // 440BX
967 } else {
968 OUTREG(BUS_CNTL1, INREG(BUS_CNTL1));
969 OUTREG(BUS_CNTL1, (INREG(BUS_CNTL1) & ~0x4000) | 0x8000);
970 }
971 }
972 #endif
973
974 OUTREG(CRTC_OFFSET_CNTL, (INREG(CRTC_OFFSET_CNTL)
975 & ~CRTC_OFFSET_CNTL__CRTC_STEREO_SYNC_OUT_EN));
976
977 clk_pin_cntl &= ~CLK_PIN_CNTL__CG_CLK_TO_OUTPIN;
978 clk_pin_cntl |= CLK_PIN_CNTL__XTALIN_ALWAYS_ONb;
979 OUTPLL( pllCLK_PIN_CNTL, clk_pin_cntl);
980
981 /* Solano2M */
982 OUTREG(AGP_CNTL,
983 (INREG(AGP_CNTL) & ~(AGP_CNTL__MAX_IDLE_CLK_MASK))
984 | (0x20<<AGP_CNTL__MAX_IDLE_CLK__SHIFT));
985
986 /* ACPI mode */
987 /* because both INPLL and OUTPLL take the same lock, that's why. */
988 tmp = INPLL( pllPLL_PWRMGT_CNTL) & ~PLL_PWRMGT_CNTL__PM_MODE_SEL;
989 OUTPLL( pllPLL_PWRMGT_CNTL, tmp);
990
991
992 disp_mis_cntl = INREG(DISP_MISC_CNTL);
993
994 disp_mis_cntl &= ~( DISP_MISC_CNTL__SOFT_RESET_GRPH_PP |
995 DISP_MISC_CNTL__SOFT_RESET_SUBPIC_PP |
996 DISP_MISC_CNTL__SOFT_RESET_OV0_PP |
997 DISP_MISC_CNTL__SOFT_RESET_GRPH_SCLK|
998 DISP_MISC_CNTL__SOFT_RESET_SUBPIC_SCLK|
999 DISP_MISC_CNTL__SOFT_RESET_OV0_SCLK|
1000 DISP_MISC_CNTL__SOFT_RESET_GRPH2_PP|
1001 DISP_MISC_CNTL__SOFT_RESET_GRPH2_SCLK|
1002 DISP_MISC_CNTL__SOFT_RESET_LVDS|
1003 DISP_MISC_CNTL__SOFT_RESET_TMDS|
1004 DISP_MISC_CNTL__SOFT_RESET_DIG_TMDS|
1005 DISP_MISC_CNTL__SOFT_RESET_TV);
1006
1007 OUTREG(DISP_MISC_CNTL, disp_mis_cntl);
1008
1009 disp_pwr_man = INREG(DISP_PWR_MAN);
1010
1011 disp_pwr_man &= ~( DISP_PWR_MAN__DISP_PWR_MAN_D3_CRTC_EN |
1012 DISP_PWR_MAN__DISP2_PWR_MAN_D3_CRTC2_EN |
1013 DISP_PWR_MAN__DISP_PWR_MAN_DPMS_MASK|
1014 DISP_PWR_MAN__DISP_D3_RST|
1015 DISP_PWR_MAN__DISP_D3_REG_RST
1016 );
1017
1018 disp_pwr_man |= DISP_PWR_MAN__DISP_D3_GRPH_RST|
1019 DISP_PWR_MAN__DISP_D3_SUBPIC_RST|
1020 DISP_PWR_MAN__DISP_D3_OV0_RST|
1021 DISP_PWR_MAN__DISP_D1D2_GRPH_RST|
1022 DISP_PWR_MAN__DISP_D1D2_SUBPIC_RST|
1023 DISP_PWR_MAN__DISP_D1D2_OV0_RST|
1024 DISP_PWR_MAN__DIG_TMDS_ENABLE_RST|
1025 DISP_PWR_MAN__TV_ENABLE_RST|
1026 // DISP_PWR_MAN__AUTO_PWRUP_EN|
1027 0;
1028
1029 OUTREG(DISP_PWR_MAN, disp_pwr_man);
1030
1031 clk_pwrmgt_cntl = INPLL( pllCLK_PWRMGT_CNTL);
1032 pll_pwrmgt_cntl = INPLL( pllPLL_PWRMGT_CNTL) ;
1033 clk_pin_cntl = INPLL( pllCLK_PIN_CNTL);
1034 disp_pwr_man = INREG(DISP_PWR_MAN);
1035
1036
1037 /* D2 */
1038 clk_pwrmgt_cntl |= CLK_PWRMGT_CNTL__DISP_PM;
1039 pll_pwrmgt_cntl |= PLL_PWRMGT_CNTL__MOBILE_SU | PLL_PWRMGT_CNTL__SU_SCLK_USE_BCLK;
1040 clk_pin_cntl |= CLK_PIN_CNTL__XTALIN_ALWAYS_ONb;
1041 disp_pwr_man &= ~(DISP_PWR_MAN__DISP_PWR_MAN_D3_CRTC_EN_MASK
1042 | DISP_PWR_MAN__DISP2_PWR_MAN_D3_CRTC2_EN_MASK);
1043
1044 OUTPLL( pllCLK_PWRMGT_CNTL, clk_pwrmgt_cntl);
1045 OUTPLL( pllPLL_PWRMGT_CNTL, pll_pwrmgt_cntl);
1046 OUTPLL( pllCLK_PIN_CNTL, clk_pin_cntl);
1047 OUTREG(DISP_PWR_MAN, disp_pwr_man);
1048
1049 /* disable display request & disable display */
1050 OUTREG( CRTC_GEN_CNTL, (INREG( CRTC_GEN_CNTL) & ~CRTC_GEN_CNTL__CRTC_EN)
1051 | CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B);
1052 OUTREG( CRTC2_GEN_CNTL, (INREG( CRTC2_GEN_CNTL) & ~CRTC2_GEN_CNTL__CRTC2_EN)
1053 | CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B);
1054
1055 mdelay(17);
1056
1057 }
1058
1059 static void radeon_pm_yclk_mclk_sync(struct radeonfb_info *rinfo)
1060 {
1061 u32 mc_chp_io_cntl_a1, mc_chp_io_cntl_b1;
1062
1063 mc_chp_io_cntl_a1 = INMC( rinfo, ixMC_CHP_IO_CNTL_A1)
1064 & ~MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA_MASK;
1065 mc_chp_io_cntl_b1 = INMC( rinfo, ixMC_CHP_IO_CNTL_B1)
1066 & ~MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB_MASK;
1067
1068 OUTMC( rinfo, ixMC_CHP_IO_CNTL_A1, mc_chp_io_cntl_a1
1069 | (1<<MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA__SHIFT));
1070 OUTMC( rinfo, ixMC_CHP_IO_CNTL_B1, mc_chp_io_cntl_b1
1071 | (1<<MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB__SHIFT));
1072
1073 OUTMC( rinfo, ixMC_CHP_IO_CNTL_A1, mc_chp_io_cntl_a1);
1074 OUTMC( rinfo, ixMC_CHP_IO_CNTL_B1, mc_chp_io_cntl_b1);
1075
1076 mdelay( 1);
1077 }
1078
1079 static void radeon_pm_yclk_mclk_sync_m10(struct radeonfb_info *rinfo)
1080 {
1081 u32 mc_chp_io_cntl_a1, mc_chp_io_cntl_b1;
1082
1083 mc_chp_io_cntl_a1 = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_A1)
1084 & ~MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA_MASK;
1085 mc_chp_io_cntl_b1 = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_B1)
1086 & ~MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB_MASK;
1087
1088 OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_A1,
1089 mc_chp_io_cntl_a1 | (1<<MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA__SHIFT));
1090 OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_B1,
1091 mc_chp_io_cntl_b1 | (1<<MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB__SHIFT));
1092
1093 OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_A1, mc_chp_io_cntl_a1);
1094 OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_B1, mc_chp_io_cntl_b1);
1095
1096 mdelay( 1);
1097 }
1098
1099 static void radeon_pm_program_mode_reg(struct radeonfb_info *rinfo, u16 value,
1100 u8 delay_required)
1101 {
1102 u32 mem_sdram_mode;
1103
1104 mem_sdram_mode = INREG( MEM_SDRAM_MODE_REG);
1105
1106 mem_sdram_mode &= ~MEM_SDRAM_MODE_REG__MEM_MODE_REG_MASK;
1107 mem_sdram_mode |= (value<<MEM_SDRAM_MODE_REG__MEM_MODE_REG__SHIFT)
1108 | MEM_SDRAM_MODE_REG__MEM_CFG_TYPE;
1109 OUTREG( MEM_SDRAM_MODE_REG, mem_sdram_mode);
1110 if (delay_required >= 2)
1111 mdelay(1);
1112
1113 mem_sdram_mode |= MEM_SDRAM_MODE_REG__MEM_SDRAM_RESET;
1114 OUTREG( MEM_SDRAM_MODE_REG, mem_sdram_mode);
1115 if (delay_required >= 2)
1116 mdelay(1);
1117
1118 mem_sdram_mode &= ~MEM_SDRAM_MODE_REG__MEM_SDRAM_RESET;
1119 OUTREG( MEM_SDRAM_MODE_REG, mem_sdram_mode);
1120 if (delay_required >= 2)
1121 mdelay(1);
1122
1123 if (delay_required) {
1124 do {
1125 if (delay_required >= 2)
1126 mdelay(1);
1127 } while ((INREG(MC_STATUS)
1128 & (MC_STATUS__MEM_PWRUP_COMPL_A |
1129 MC_STATUS__MEM_PWRUP_COMPL_B)) == 0);
1130 }
1131 }
1132
1133 static void radeon_pm_m10_program_mode_wait(struct radeonfb_info *rinfo)
1134 {
1135 int cnt;
1136
1137 for (cnt = 0; cnt < 100; ++cnt) {
1138 mdelay(1);
1139 if (INREG(MC_STATUS) & (MC_STATUS__MEM_PWRUP_COMPL_A
1140 | MC_STATUS__MEM_PWRUP_COMPL_B))
1141 break;
1142 }
1143 }
1144
1145
1146 static void radeon_pm_enable_dll(struct radeonfb_info *rinfo)
1147 {
1148 #define DLL_RESET_DELAY 5
1149 #define DLL_SLEEP_DELAY 1
1150
1151 u32 cko = INPLL(pllMDLL_CKO) | MDLL_CKO__MCKOA_SLEEP
1152 | MDLL_CKO__MCKOA_RESET;
1153 u32 cka = INPLL(pllMDLL_RDCKA) | MDLL_RDCKA__MRDCKA0_SLEEP
1154 | MDLL_RDCKA__MRDCKA1_SLEEP | MDLL_RDCKA__MRDCKA0_RESET
1155 | MDLL_RDCKA__MRDCKA1_RESET;
1156 u32 ckb = INPLL(pllMDLL_RDCKB) | MDLL_RDCKB__MRDCKB0_SLEEP
1157 | MDLL_RDCKB__MRDCKB1_SLEEP | MDLL_RDCKB__MRDCKB0_RESET
1158 | MDLL_RDCKB__MRDCKB1_RESET;
1159
1160 /* Setting up the DLL range for write */
1161 OUTPLL(pllMDLL_CKO, cko);
1162 OUTPLL(pllMDLL_RDCKA, cka);
1163 OUTPLL(pllMDLL_RDCKB, ckb);
1164
1165 mdelay(DLL_RESET_DELAY*2);
1166
1167 cko &= ~(MDLL_CKO__MCKOA_SLEEP | MDLL_CKO__MCKOB_SLEEP);
1168 OUTPLL(pllMDLL_CKO, cko);
1169 mdelay(DLL_SLEEP_DELAY);
1170 cko &= ~(MDLL_CKO__MCKOA_RESET | MDLL_CKO__MCKOB_RESET);
1171 OUTPLL(pllMDLL_CKO, cko);
1172 mdelay(DLL_RESET_DELAY);
1173
1174 cka &= ~(MDLL_RDCKA__MRDCKA0_SLEEP | MDLL_RDCKA__MRDCKA1_SLEEP);
1175 OUTPLL(pllMDLL_RDCKA, cka);
1176 mdelay(DLL_SLEEP_DELAY);
1177 cka &= ~(MDLL_RDCKA__MRDCKA0_RESET | MDLL_RDCKA__MRDCKA1_RESET);
1178 OUTPLL(pllMDLL_RDCKA, cka);
1179 mdelay(DLL_RESET_DELAY);
1180
1181 ckb &= ~(MDLL_RDCKB__MRDCKB0_SLEEP | MDLL_RDCKB__MRDCKB1_SLEEP);
1182 OUTPLL(pllMDLL_RDCKB, ckb);
1183 mdelay(DLL_SLEEP_DELAY);
1184 ckb &= ~(MDLL_RDCKB__MRDCKB0_RESET | MDLL_RDCKB__MRDCKB1_RESET);
1185 OUTPLL(pllMDLL_RDCKB, ckb);
1186 mdelay(DLL_RESET_DELAY);
1187
1188
1189 #undef DLL_RESET_DELAY
1190 #undef DLL_SLEEP_DELAY
1191 }
1192
1193 static void radeon_pm_enable_dll_m10(struct radeonfb_info *rinfo)
1194 {
1195 u32 dll_value;
1196 u32 dll_sleep_mask = 0;
1197 u32 dll_reset_mask = 0;
1198 u32 mc;
1199
1200 #define DLL_RESET_DELAY 5
1201 #define DLL_SLEEP_DELAY 1
1202
1203 OUTMC(rinfo, ixR300_MC_DLL_CNTL, rinfo->save_regs[70]);
1204 mc = INREG(MC_CNTL);
1205 /* Check which channels are enabled */
1206 switch (mc & 0x3) {
1207 case 1:
1208 if (mc & 0x4)
1209 break;
1210 case 2:
1211 dll_sleep_mask |= MDLL_R300_RDCK__MRDCKB_SLEEP;
1212 dll_reset_mask |= MDLL_R300_RDCK__MRDCKB_RESET;
1213 case 0:
1214 dll_sleep_mask |= MDLL_R300_RDCK__MRDCKA_SLEEP;
1215 dll_reset_mask |= MDLL_R300_RDCK__MRDCKA_RESET;
1216 }
1217 switch (mc & 0x3) {
1218 case 1:
1219 if (!(mc & 0x4))
1220 break;
1221 case 2:
1222 dll_sleep_mask |= MDLL_R300_RDCK__MRDCKD_SLEEP;
1223 dll_reset_mask |= MDLL_R300_RDCK__MRDCKD_RESET;
1224 dll_sleep_mask |= MDLL_R300_RDCK__MRDCKC_SLEEP;
1225 dll_reset_mask |= MDLL_R300_RDCK__MRDCKC_RESET;
1226 }
1227
1228 dll_value = INPLL(pllMDLL_RDCKA);
1229
1230 /* Power Up */
1231 dll_value &= ~(dll_sleep_mask);
1232 OUTPLL(pllMDLL_RDCKA, dll_value);
1233 mdelay( DLL_SLEEP_DELAY);
1234
1235 dll_value &= ~(dll_reset_mask);
1236 OUTPLL(pllMDLL_RDCKA, dll_value);
1237 mdelay( DLL_RESET_DELAY);
1238
1239 #undef DLL_RESET_DELAY
1240 #undef DLL_SLEEP_DELAY
1241 }
1242
1243
1244 static void radeon_pm_full_reset_sdram(struct radeonfb_info *rinfo)
1245 {
1246 u32 crtcGenCntl, crtcGenCntl2, memRefreshCntl, crtc_more_cntl,
1247 fp_gen_cntl, fp2_gen_cntl;
1248
1249 crtcGenCntl = INREG( CRTC_GEN_CNTL);
1250 crtcGenCntl2 = INREG( CRTC2_GEN_CNTL);
1251
1252 crtc_more_cntl = INREG( CRTC_MORE_CNTL);
1253 fp_gen_cntl = INREG( FP_GEN_CNTL);
1254 fp2_gen_cntl = INREG( FP2_GEN_CNTL);
1255
1256
1257 OUTREG( CRTC_MORE_CNTL, 0);
1258 OUTREG( FP_GEN_CNTL, 0);
1259 OUTREG( FP2_GEN_CNTL,0);
1260
1261 OUTREG( CRTC_GEN_CNTL, (crtcGenCntl | CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B) );
1262 OUTREG( CRTC2_GEN_CNTL, (crtcGenCntl2 | CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B) );
1263
1264 /* This is the code for the Aluminium PowerBooks M10 / iBooks M11 */
1265 if (rinfo->family == CHIP_FAMILY_RV350) {
1266 u32 sdram_mode_reg = rinfo->save_regs[35];
1267 static const u32 default_mrtable[] =
1268 { 0x21320032,
1269 0x21321000, 0xa1321000, 0x21321000, 0xffffffff,
1270 0x21320032, 0xa1320032, 0x21320032, 0xffffffff,
1271 0x21321002, 0xa1321002, 0x21321002, 0xffffffff,
1272 0x21320132, 0xa1320132, 0x21320132, 0xffffffff,
1273 0x21320032, 0xa1320032, 0x21320032, 0xffffffff,
1274 0x31320032 };
1275
1276 const u32 *mrtable = default_mrtable;
1277 int i, mrtable_size = ARRAY_SIZE(default_mrtable);
1278
1279 mdelay(30);
1280
1281 /* Disable refresh */
1282 memRefreshCntl = INREG( MEM_REFRESH_CNTL)
1283 & ~MEM_REFRESH_CNTL__MEM_REFRESH_DIS;
1284 OUTREG( MEM_REFRESH_CNTL, memRefreshCntl
1285 | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);
1286
1287 /* Configure and enable M & SPLLs */
1288 radeon_pm_enable_dll_m10(rinfo);
1289 radeon_pm_yclk_mclk_sync_m10(rinfo);
1290
1291 #ifdef CONFIG_PPC_OF
1292 if (rinfo->of_node != NULL) {
1293 int size;
1294
1295 mrtable = of_get_property(rinfo->of_node, "ATY,MRT", &size);
1296 if (mrtable)
1297 mrtable_size = size >> 2;
1298 else
1299 mrtable = default_mrtable;
1300 }
1301 #endif /* CONFIG_PPC_OF */
1302
1303 /* Program the SDRAM */
1304 sdram_mode_reg = mrtable[0];
1305 OUTREG(MEM_SDRAM_MODE_REG, sdram_mode_reg);
1306 for (i = 0; i < mrtable_size; i++) {
1307 if (mrtable[i] == 0xffffffffu)
1308 radeon_pm_m10_program_mode_wait(rinfo);
1309 else {
1310 sdram_mode_reg &= ~(MEM_SDRAM_MODE_REG__MEM_MODE_REG_MASK
1311 | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE
1312 | MEM_SDRAM_MODE_REG__MEM_SDRAM_RESET);
1313 sdram_mode_reg |= mrtable[i];
1314
1315 OUTREG(MEM_SDRAM_MODE_REG, sdram_mode_reg);
1316 mdelay(1);
1317 }
1318 }
1319
1320 /* Restore memory refresh */
1321 OUTREG(MEM_REFRESH_CNTL, memRefreshCntl);
1322 mdelay(30);
1323
1324 }
1325 /* Here come the desktop RV200 "QW" card */
1326 else if (!rinfo->is_mobility && rinfo->family == CHIP_FAMILY_RV200) {
1327 /* Disable refresh */
1328 memRefreshCntl = INREG( MEM_REFRESH_CNTL)
1329 & ~MEM_REFRESH_CNTL__MEM_REFRESH_DIS;
1330 OUTREG(MEM_REFRESH_CNTL, memRefreshCntl
1331 | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);
1332 mdelay(30);
1333
1334 /* Reset memory */
1335 OUTREG(MEM_SDRAM_MODE_REG,
1336 INREG( MEM_SDRAM_MODE_REG) & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1337
1338 radeon_pm_program_mode_reg(rinfo, 0x2002, 2);
1339 radeon_pm_program_mode_reg(rinfo, 0x0132, 2);
1340 radeon_pm_program_mode_reg(rinfo, 0x0032, 2);
1341
1342 OUTREG(MEM_SDRAM_MODE_REG,
1343 INREG(MEM_SDRAM_MODE_REG) | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1344
1345 OUTREG( MEM_REFRESH_CNTL, memRefreshCntl);
1346
1347 }
1348 /* The M6 */
1349 else if (rinfo->is_mobility && rinfo->family == CHIP_FAMILY_RV100) {
1350 /* Disable refresh */
1351 memRefreshCntl = INREG(EXT_MEM_CNTL) & ~(1 << 20);
1352 OUTREG( EXT_MEM_CNTL, memRefreshCntl | (1 << 20));
1353
1354 /* Reset memory */
1355 OUTREG( MEM_SDRAM_MODE_REG,
1356 INREG( MEM_SDRAM_MODE_REG)
1357 & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1358
1359 /* DLL */
1360 radeon_pm_enable_dll(rinfo);
1361
1362 /* MLCK / YCLK sync */
1363 radeon_pm_yclk_mclk_sync(rinfo);
1364
1365 /* Program Mode Register */
1366 radeon_pm_program_mode_reg(rinfo, 0x2000, 1);
1367 radeon_pm_program_mode_reg(rinfo, 0x2001, 1);
1368 radeon_pm_program_mode_reg(rinfo, 0x2002, 1);
1369 radeon_pm_program_mode_reg(rinfo, 0x0132, 1);
1370 radeon_pm_program_mode_reg(rinfo, 0x0032, 1);
1371
1372 /* Complete & re-enable refresh */
1373 OUTREG( MEM_SDRAM_MODE_REG,
1374 INREG( MEM_SDRAM_MODE_REG) | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1375
1376 OUTREG(EXT_MEM_CNTL, memRefreshCntl);
1377 }
1378 /* And finally, the M7..M9 models, including M9+ (RV280) */
1379 else if (rinfo->is_mobility) {
1380
1381 /* Disable refresh */
1382 memRefreshCntl = INREG( MEM_REFRESH_CNTL)
1383 & ~MEM_REFRESH_CNTL__MEM_REFRESH_DIS;
1384 OUTREG( MEM_REFRESH_CNTL, memRefreshCntl
1385 | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);
1386
1387 /* Reset memory */
1388 OUTREG( MEM_SDRAM_MODE_REG,
1389 INREG( MEM_SDRAM_MODE_REG)
1390 & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1391
1392 /* DLL */
1393 radeon_pm_enable_dll(rinfo);
1394
1395 /* MLCK / YCLK sync */
1396 radeon_pm_yclk_mclk_sync(rinfo);
1397
1398 /* M6, M7 and M9 so far ... */
1399 if (rinfo->family <= CHIP_FAMILY_RV250) {
1400 radeon_pm_program_mode_reg(rinfo, 0x2000, 1);
1401 radeon_pm_program_mode_reg(rinfo, 0x2001, 1);
1402 radeon_pm_program_mode_reg(rinfo, 0x2002, 1);
1403 radeon_pm_program_mode_reg(rinfo, 0x0132, 1);
1404 radeon_pm_program_mode_reg(rinfo, 0x0032, 1);
1405 }
1406 /* M9+ (iBook G4) */
1407 else if (rinfo->family == CHIP_FAMILY_RV280) {
1408 radeon_pm_program_mode_reg(rinfo, 0x2000, 1);
1409 radeon_pm_program_mode_reg(rinfo, 0x0132, 1);
1410 radeon_pm_program_mode_reg(rinfo, 0x0032, 1);
1411 }
1412
1413 /* Complete & re-enable refresh */
1414 OUTREG( MEM_SDRAM_MODE_REG,
1415 INREG( MEM_SDRAM_MODE_REG) | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1416
1417 OUTREG( MEM_REFRESH_CNTL, memRefreshCntl);
1418 }
1419
1420 OUTREG( CRTC_GEN_CNTL, crtcGenCntl);
1421 OUTREG( CRTC2_GEN_CNTL, crtcGenCntl2);
1422 OUTREG( FP_GEN_CNTL, fp_gen_cntl);
1423 OUTREG( FP2_GEN_CNTL, fp2_gen_cntl);
1424
1425 OUTREG( CRTC_MORE_CNTL, crtc_more_cntl);
1426
1427 mdelay( 15);
1428 }
1429
1430 static void radeon_pm_reset_pad_ctlr_strength(struct radeonfb_info *rinfo)
1431 {
1432 u32 tmp, tmp2;
1433 int i,j;
1434
1435 /* Reset the PAD_CTLR_STRENGTH & wait for it to be stable */
1436 INREG(PAD_CTLR_STRENGTH);
1437 OUTREG(PAD_CTLR_STRENGTH, INREG(PAD_CTLR_STRENGTH) & ~PAD_MANUAL_OVERRIDE);
1438 tmp = INREG(PAD_CTLR_STRENGTH);
1439 for (i = j = 0; i < 65; ++i) {
1440 mdelay(1);
1441 tmp2 = INREG(PAD_CTLR_STRENGTH);
1442 if (tmp != tmp2) {
1443 tmp = tmp2;
1444 i = 0;
1445 j++;
1446 if (j > 10) {
1447 printk(KERN_WARNING "radeon: PAD_CTLR_STRENGTH doesn't "
1448 "stabilize !\n");
1449 break;
1450 }
1451 }
1452 }
1453 }
1454
1455 static void radeon_pm_all_ppls_off(struct radeonfb_info *rinfo)
1456 {
1457 u32 tmp;
1458
1459 tmp = INPLL(pllPPLL_CNTL);
1460 OUTPLL(pllPPLL_CNTL, tmp | 0x3);
1461 tmp = INPLL(pllP2PLL_CNTL);
1462 OUTPLL(pllP2PLL_CNTL, tmp | 0x3);
1463 tmp = INPLL(pllSPLL_CNTL);
1464 OUTPLL(pllSPLL_CNTL, tmp | 0x3);
1465 tmp = INPLL(pllMPLL_CNTL);
1466 OUTPLL(pllMPLL_CNTL, tmp | 0x3);
1467 }
1468
1469 static void radeon_pm_start_mclk_sclk(struct radeonfb_info *rinfo)
1470 {
1471 u32 tmp;
1472
1473 /* Switch SPLL to PCI source */
1474 tmp = INPLL(pllSCLK_CNTL);
1475 OUTPLL(pllSCLK_CNTL, tmp & ~SCLK_CNTL__SCLK_SRC_SEL_MASK);
1476
1477 /* Reconfigure SPLL charge pump, VCO gain, duty cycle */
1478 tmp = INPLL(pllSPLL_CNTL);
1479 OUTREG8(CLOCK_CNTL_INDEX, pllSPLL_CNTL + PLL_WR_EN);
1480 radeon_pll_errata_after_index(rinfo);
1481 OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
1482 radeon_pll_errata_after_data(rinfo);
1483
1484 /* Set SPLL feedback divider */
1485 tmp = INPLL(pllM_SPLL_REF_FB_DIV);
1486 tmp = (tmp & 0xff00fffful) | (rinfo->save_regs[77] & 0x00ff0000ul);
1487 OUTPLL(pllM_SPLL_REF_FB_DIV, tmp);
1488
1489 /* Power up SPLL */
1490 tmp = INPLL(pllSPLL_CNTL);
1491 OUTPLL(pllSPLL_CNTL, tmp & ~1);
1492 (void)INPLL(pllSPLL_CNTL);
1493
1494 mdelay(10);
1495
1496 /* Release SPLL reset */
1497 tmp = INPLL(pllSPLL_CNTL);
1498 OUTPLL(pllSPLL_CNTL, tmp & ~0x2);
1499 (void)INPLL(pllSPLL_CNTL);
1500
1501 mdelay(10);
1502
1503 /* Select SCLK source */
1504 tmp = INPLL(pllSCLK_CNTL);
1505 tmp &= ~SCLK_CNTL__SCLK_SRC_SEL_MASK;
1506 tmp |= rinfo->save_regs[3] & SCLK_CNTL__SCLK_SRC_SEL_MASK;
1507 OUTPLL(pllSCLK_CNTL, tmp);
1508 (void)INPLL(pllSCLK_CNTL);
1509
1510 mdelay(10);
1511
1512 /* Reconfigure MPLL charge pump, VCO gain, duty cycle */
1513 tmp = INPLL(pllMPLL_CNTL);
1514 OUTREG8(CLOCK_CNTL_INDEX, pllMPLL_CNTL + PLL_WR_EN);
1515 radeon_pll_errata_after_index(rinfo);
1516 OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
1517 radeon_pll_errata_after_data(rinfo);
1518
1519 /* Set MPLL feedback divider */
1520 tmp = INPLL(pllM_SPLL_REF_FB_DIV);
1521 tmp = (tmp & 0xffff00fful) | (rinfo->save_regs[77] & 0x0000ff00ul);
1522
1523 OUTPLL(pllM_SPLL_REF_FB_DIV, tmp);
1524 /* Power up MPLL */
1525 tmp = INPLL(pllMPLL_CNTL);
1526 OUTPLL(pllMPLL_CNTL, tmp & ~0x2);
1527 (void)INPLL(pllMPLL_CNTL);
1528
1529 mdelay(10);
1530
1531 /* Un-reset MPLL */
1532 tmp = INPLL(pllMPLL_CNTL);
1533 OUTPLL(pllMPLL_CNTL, tmp & ~0x1);
1534 (void)INPLL(pllMPLL_CNTL);
1535
1536 mdelay(10);
1537
1538 /* Select source for MCLK */
1539 tmp = INPLL(pllMCLK_CNTL);
1540 tmp |= rinfo->save_regs[2] & 0xffff;
1541 OUTPLL(pllMCLK_CNTL, tmp);
1542 (void)INPLL(pllMCLK_CNTL);
1543
1544 mdelay(10);
1545 }
1546
1547 static void radeon_pm_m10_disable_spread_spectrum(struct radeonfb_info *rinfo)
1548 {
1549 u32 r2ec;
1550
1551 /* GACK ! I though we didn't have a DDA on Radeon's anymore
1552 * here we rewrite with the same value, ... I suppose we clear
1553 * some bits that are already clear ? Or maybe this 0x2ec
1554 * register is something new ?
1555 */
1556 mdelay(20);
1557 r2ec = INREG(VGA_DDA_ON_OFF);
1558 OUTREG(VGA_DDA_ON_OFF, r2ec);
1559 mdelay(1);
1560
1561 /* Spread spectrum PLLL off */
1562 OUTPLL(pllSSPLL_CNTL, 0xbf03);
1563
1564 /* Spread spectrum disabled */
1565 OUTPLL(pllSS_INT_CNTL, rinfo->save_regs[90] & ~3);
1566
1567 /* The trace shows read & rewrite of LVDS_PLL_CNTL here with same
1568 * value, not sure what for...
1569 */
1570
1571 r2ec |= 0x3f0;
1572 OUTREG(VGA_DDA_ON_OFF, r2ec);
1573 mdelay(1);
1574 }
1575
1576 static void radeon_pm_m10_enable_lvds_spread_spectrum(struct radeonfb_info *rinfo)
1577 {
1578 u32 r2ec, tmp;
1579
1580 /* GACK (bis) ! I though we didn't have a DDA on Radeon's anymore
1581 * here we rewrite with the same value, ... I suppose we clear/set
1582 * some bits that are already clear/set ?
1583 */
1584 r2ec = INREG(VGA_DDA_ON_OFF);
1585 OUTREG(VGA_DDA_ON_OFF, r2ec);
1586 mdelay(1);
1587
1588 /* Enable spread spectrum */
1589 OUTPLL(pllSSPLL_CNTL, rinfo->save_regs[43] | 3);
1590 mdelay(3);
1591
1592 OUTPLL(pllSSPLL_REF_DIV, rinfo->save_regs[44]);
1593 OUTPLL(pllSSPLL_DIV_0, rinfo->save_regs[45]);
1594 tmp = INPLL(pllSSPLL_CNTL);
1595 OUTPLL(pllSSPLL_CNTL, tmp & ~0x2);
1596 mdelay(6);
1597 tmp = INPLL(pllSSPLL_CNTL);
1598 OUTPLL(pllSSPLL_CNTL, tmp & ~0x1);
1599 mdelay(5);
1600
1601 OUTPLL(pllSS_INT_CNTL, rinfo->save_regs[90]);
1602
1603 r2ec |= 8;
1604 OUTREG(VGA_DDA_ON_OFF, r2ec);
1605 mdelay(20);
1606
1607 /* Enable LVDS interface */
1608 tmp = INREG(LVDS_GEN_CNTL);
1609 OUTREG(LVDS_GEN_CNTL, tmp | LVDS_EN);
1610
1611 /* Enable LVDS_PLL */
1612 tmp = INREG(LVDS_PLL_CNTL);
1613 tmp &= ~0x30000;
1614 tmp |= 0x10000;
1615 OUTREG(LVDS_PLL_CNTL, tmp);
1616
1617 OUTPLL(pllSCLK_MORE_CNTL, rinfo->save_regs[34]);
1618 OUTPLL(pllSS_TST_CNTL, rinfo->save_regs[91]);
1619
1620 /* The trace reads that one here, waiting for something to settle down ? */
1621 INREG(RBBM_STATUS);
1622
1623 /* Ugh ? SS_TST_DEC is supposed to be a read register in the
1624 * R300 register spec at least...
1625 */
1626 tmp = INPLL(pllSS_TST_CNTL);
1627 tmp |= 0x00400000;
1628 OUTPLL(pllSS_TST_CNTL, tmp);
1629 }
1630
1631 static void radeon_pm_restore_pixel_pll(struct radeonfb_info *rinfo)
1632 {
1633 u32 tmp;
1634
1635 OUTREG8(CLOCK_CNTL_INDEX, pllHTOTAL_CNTL + PLL_WR_EN);
1636 radeon_pll_errata_after_index(rinfo);
1637 OUTREG8(CLOCK_CNTL_DATA, 0);
1638 radeon_pll_errata_after_data(rinfo);
1639
1640 tmp = INPLL(pllVCLK_ECP_CNTL);
1641 OUTPLL(pllVCLK_ECP_CNTL, tmp | 0x80);
1642 mdelay(5);
1643
1644 tmp = INPLL(pllPPLL_REF_DIV);
1645 tmp = (tmp & ~PPLL_REF_DIV_MASK) | rinfo->pll.ref_div;
1646 OUTPLL(pllPPLL_REF_DIV, tmp);
1647 INPLL(pllPPLL_REF_DIV);
1648
1649 /* Reconfigure SPLL charge pump, VCO gain, duty cycle,
1650 * probably useless since we already did it ...
1651 */
1652 tmp = INPLL(pllPPLL_CNTL);
1653 OUTREG8(CLOCK_CNTL_INDEX, pllSPLL_CNTL + PLL_WR_EN);
1654 radeon_pll_errata_after_index(rinfo);
1655 OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
1656 radeon_pll_errata_after_data(rinfo);
1657
1658 /* Restore our "reference" PPLL divider set by firmware
1659 * according to proper spread spectrum calculations
1660 */
1661 OUTPLL(pllPPLL_DIV_0, rinfo->save_regs[92]);
1662
1663 tmp = INPLL(pllPPLL_CNTL);
1664 OUTPLL(pllPPLL_CNTL, tmp & ~0x2);
1665 mdelay(5);
1666
1667 tmp = INPLL(pllPPLL_CNTL);
1668 OUTPLL(pllPPLL_CNTL, tmp & ~0x1);
1669 mdelay(5);
1670
1671 tmp = INPLL(pllVCLK_ECP_CNTL);
1672 OUTPLL(pllVCLK_ECP_CNTL, tmp | 3);
1673 mdelay(5);
1674
1675 tmp = INPLL(pllVCLK_ECP_CNTL);
1676 OUTPLL(pllVCLK_ECP_CNTL, tmp | 3);
1677 mdelay(5);
1678
1679 /* Switch pixel clock to firmware default div 0 */
1680 OUTREG8(CLOCK_CNTL_INDEX+1, 0);
1681 radeon_pll_errata_after_index(rinfo);
1682 radeon_pll_errata_after_data(rinfo);
1683 }
1684
1685 static void radeon_pm_m10_reconfigure_mc(struct radeonfb_info *rinfo)
1686 {
1687 OUTREG(MC_CNTL, rinfo->save_regs[46]);
1688 OUTREG(MC_INIT_GFX_LAT_TIMER, rinfo->save_regs[47]);
1689 OUTREG(MC_INIT_MISC_LAT_TIMER, rinfo->save_regs[48]);
1690 OUTREG(MEM_SDRAM_MODE_REG,
1691 rinfo->save_regs[35] & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1692 OUTREG(MC_TIMING_CNTL, rinfo->save_regs[49]);
1693 OUTREG(MEM_REFRESH_CNTL, rinfo->save_regs[42]);
1694 OUTREG(MC_READ_CNTL_AB, rinfo->save_regs[50]);
1695 OUTREG(MC_CHIP_IO_OE_CNTL_AB, rinfo->save_regs[52]);
1696 OUTREG(MC_IOPAD_CNTL, rinfo->save_regs[51]);
1697 OUTREG(MC_DEBUG, rinfo->save_regs[53]);
1698
1699 OUTMC(rinfo, ixR300_MC_MC_INIT_WR_LAT_TIMER, rinfo->save_regs[58]);
1700 OUTMC(rinfo, ixR300_MC_IMP_CNTL, rinfo->save_regs[59]);
1701 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_C0, rinfo->save_regs[60]);
1702 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_C1, rinfo->save_regs[61]);
1703 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_D0, rinfo->save_regs[62]);
1704 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_D1, rinfo->save_regs[63]);
1705 OUTMC(rinfo, ixR300_MC_BIST_CNTL_3, rinfo->save_regs[64]);
1706 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_A0, rinfo->save_regs[65]);
1707 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_A1, rinfo->save_regs[66]);
1708 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_B0, rinfo->save_regs[67]);
1709 OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_B1, rinfo->save_regs[68]);
1710 OUTMC(rinfo, ixR300_MC_DEBUG_CNTL, rinfo->save_regs[69]);
1711 OUTMC(rinfo, ixR300_MC_DLL_CNTL, rinfo->save_regs[70]);
1712 OUTMC(rinfo, ixR300_MC_IMP_CNTL_0, rinfo->save_regs[71]);
1713 OUTMC(rinfo, ixR300_MC_ELPIDA_CNTL, rinfo->save_regs[72]);
1714 OUTMC(rinfo, ixR300_MC_READ_CNTL_CD, rinfo->save_regs[96]);
1715 OUTREG(MC_IND_INDEX, 0);
1716 }
1717
1718 static void radeon_reinitialize_M10(struct radeonfb_info *rinfo)
1719 {
1720 u32 tmp, i;
1721
1722 /* Restore a bunch of registers first */
1723 OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
1724 OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
1725 OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
1726 OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
1727 OUTREG(OV0_BASE_ADDR, rinfo->save_regs[80]);
1728 OUTREG(CNFG_MEMSIZE, rinfo->video_ram);
1729 OUTREG(BUS_CNTL, rinfo->save_regs[36]);
1730 OUTREG(BUS_CNTL1, rinfo->save_regs[14]);
1731 OUTREG(MPP_TB_CONFIG, rinfo->save_regs[37]);
1732 OUTREG(FCP_CNTL, rinfo->save_regs[38]);
1733 OUTREG(RBBM_CNTL, rinfo->save_regs[39]);
1734 OUTREG(DAC_CNTL, rinfo->save_regs[40]);
1735 OUTREG(DAC_MACRO_CNTL, (INREG(DAC_MACRO_CNTL) & ~0x6) | 8);
1736 OUTREG(DAC_MACRO_CNTL, (INREG(DAC_MACRO_CNTL) & ~0x6) | 8);
1737
1738 /* Hrm... */
1739 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | DAC2_EXPAND_MODE);
1740
1741 /* Reset the PAD CTLR */
1742 radeon_pm_reset_pad_ctlr_strength(rinfo);
1743
1744 /* Some PLLs are Read & written identically in the trace here...
1745 * I suppose it's actually to switch them all off & reset,
1746 * let's assume off is what we want. I'm just doing that for all major PLLs now.
1747 */
1748 radeon_pm_all_ppls_off(rinfo);
1749
1750 /* Clear tiling, reset swappers */
1751 INREG(SURFACE_CNTL);
1752 OUTREG(SURFACE_CNTL, 0);
1753
1754 /* Some black magic with TV_DAC_CNTL, we should restore those from backups
1755 * rather than hard coding...
1756 */
1757 tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_BGADJ_MASK;
1758 tmp |= 8 << TV_DAC_CNTL_BGADJ__SHIFT;
1759 OUTREG(TV_DAC_CNTL, tmp);
1760
1761 tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_DACADJ_MASK;
1762 tmp |= 7 << TV_DAC_CNTL_DACADJ__SHIFT;
1763 OUTREG(TV_DAC_CNTL, tmp);
1764
1765 /* More registers restored */
1766 OUTREG(AGP_CNTL, rinfo->save_regs[16]);
1767 OUTREG(HOST_PATH_CNTL, rinfo->save_regs[41]);
1768 OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);
1769
1770 /* Hrmmm ... What is that ? */
1771 tmp = rinfo->save_regs[1]
1772 & ~(CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK |
1773 CLK_PWRMGT_CNTL__MC_BUSY);
1774 OUTPLL(pllCLK_PWRMGT_CNTL, tmp);
1775
1776 OUTREG(PAD_CTLR_MISC, rinfo->save_regs[56]);
1777 OUTREG(FW_CNTL, rinfo->save_regs[57]);
1778 OUTREG(HDP_DEBUG, rinfo->save_regs[96]);
1779 OUTREG(PAMAC0_DLY_CNTL, rinfo->save_regs[54]);
1780 OUTREG(PAMAC1_DLY_CNTL, rinfo->save_regs[55]);
1781 OUTREG(PAMAC2_DLY_CNTL, rinfo->save_regs[79]);
1782
1783 /* Restore Memory Controller configuration */
1784 radeon_pm_m10_reconfigure_mc(rinfo);
1785
1786 /* Make sure CRTC's dont touch memory */
1787 OUTREG(CRTC_GEN_CNTL, INREG(CRTC_GEN_CNTL)
1788 | CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B);
1789 OUTREG(CRTC2_GEN_CNTL, INREG(CRTC2_GEN_CNTL)
1790 | CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B);
1791 mdelay(30);
1792
1793 /* Disable SDRAM refresh */
1794 OUTREG(MEM_REFRESH_CNTL, INREG(MEM_REFRESH_CNTL)
1795 | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);
1796
1797 /* Restore XTALIN routing (CLK_PIN_CNTL) */
1798 OUTPLL(pllCLK_PIN_CNTL, rinfo->save_regs[4]);
1799
1800 /* Switch MCLK, YCLK and SCLK PLLs to PCI source & force them ON */
1801 tmp = rinfo->save_regs[2] & 0xff000000;
1802 tmp |= MCLK_CNTL__FORCE_MCLKA |
1803 MCLK_CNTL__FORCE_MCLKB |
1804 MCLK_CNTL__FORCE_YCLKA |
1805 MCLK_CNTL__FORCE_YCLKB |
1806 MCLK_CNTL__FORCE_MC;
1807 OUTPLL(pllMCLK_CNTL, tmp);
1808
1809 /* Force all clocks on in SCLK */
1810 tmp = INPLL(pllSCLK_CNTL);
1811 tmp |= SCLK_CNTL__FORCE_DISP2|
1812 SCLK_CNTL__FORCE_CP|
1813 SCLK_CNTL__FORCE_HDP|
1814 SCLK_CNTL__FORCE_DISP1|
1815 SCLK_CNTL__FORCE_TOP|
1816 SCLK_CNTL__FORCE_E2|
1817 SCLK_CNTL__FORCE_SE|
1818 SCLK_CNTL__FORCE_IDCT|
1819 SCLK_CNTL__FORCE_VIP|
1820 SCLK_CNTL__FORCE_PB|
1821 SCLK_CNTL__FORCE_TAM|
1822 SCLK_CNTL__FORCE_TDM|
1823 SCLK_CNTL__FORCE_RB|
1824 SCLK_CNTL__FORCE_TV_SCLK|
1825 SCLK_CNTL__FORCE_SUBPIC|
1826 SCLK_CNTL__FORCE_OV0;
1827 tmp |= SCLK_CNTL__CP_MAX_DYN_STOP_LAT |
1828 SCLK_CNTL__HDP_MAX_DYN_STOP_LAT |
1829 SCLK_CNTL__TV_MAX_DYN_STOP_LAT |
1830 SCLK_CNTL__E2_MAX_DYN_STOP_LAT |
1831 SCLK_CNTL__SE_MAX_DYN_STOP_LAT |
1832 SCLK_CNTL__IDCT_MAX_DYN_STOP_LAT|
1833 SCLK_CNTL__VIP_MAX_DYN_STOP_LAT |
1834 SCLK_CNTL__RE_MAX_DYN_STOP_LAT |
1835 SCLK_CNTL__PB_MAX_DYN_STOP_LAT |
1836 SCLK_CNTL__TAM_MAX_DYN_STOP_LAT |
1837 SCLK_CNTL__TDM_MAX_DYN_STOP_LAT |
1838 SCLK_CNTL__RB_MAX_DYN_STOP_LAT;
1839 OUTPLL(pllSCLK_CNTL, tmp);
1840
1841 OUTPLL(pllVCLK_ECP_CNTL, 0);
1842 OUTPLL(pllPIXCLKS_CNTL, 0);
1843 OUTPLL(pllMCLK_MISC,
1844 MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT |
1845 MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT);
1846
1847 mdelay(5);
1848
1849 /* Restore the M_SPLL_REF_FB_DIV, MPLL_AUX_CNTL and SPLL_AUX_CNTL values */
1850 OUTPLL(pllM_SPLL_REF_FB_DIV, rinfo->save_regs[77]);
1851 OUTPLL(pllMPLL_AUX_CNTL, rinfo->save_regs[75]);
1852 OUTPLL(pllSPLL_AUX_CNTL, rinfo->save_regs[76]);
1853
1854 /* Now restore the major PLLs settings, keeping them off & reset though */
1855 OUTPLL(pllPPLL_CNTL, rinfo->save_regs[93] | 0x3);
1856 OUTPLL(pllP2PLL_CNTL, rinfo->save_regs[8] | 0x3);
1857 OUTPLL(pllMPLL_CNTL, rinfo->save_regs[73] | 0x03);
1858 OUTPLL(pllSPLL_CNTL, rinfo->save_regs[74] | 0x03);
1859
1860 /* Restore MC DLL state and switch it off/reset too */
1861 OUTMC(rinfo, ixR300_MC_DLL_CNTL, rinfo->save_regs[70]);
1862
1863 /* Switch MDLL off & reset */
1864 OUTPLL(pllMDLL_RDCKA, rinfo->save_regs[98] | 0xff);
1865 mdelay(5);
1866
1867 /* Setup some black magic bits in PLL_PWRMGT_CNTL. Hrm... we saved
1868 * 0xa1100007... and MacOS writes 0xa1000007 ..
1869 */
1870 OUTPLL(pllPLL_PWRMGT_CNTL, rinfo->save_regs[0]);
1871
1872 /* Restore more stuffs */
1873 OUTPLL(pllHTOTAL_CNTL, 0);
1874 OUTPLL(pllHTOTAL2_CNTL, 0);
1875
1876 /* More PLL initial configuration */
1877 tmp = INPLL(pllSCLK_CNTL2); /* What for ? */
1878 OUTPLL(pllSCLK_CNTL2, tmp);
1879
1880 tmp = INPLL(pllSCLK_MORE_CNTL);
1881 tmp |= SCLK_MORE_CNTL__FORCE_DISPREGS | /* a guess */
1882 SCLK_MORE_CNTL__FORCE_MC_GUI |
1883 SCLK_MORE_CNTL__FORCE_MC_HOST;
1884 OUTPLL(pllSCLK_MORE_CNTL, tmp);
1885
1886 /* Now we actually start MCLK and SCLK */
1887 radeon_pm_start_mclk_sclk(rinfo);
1888
1889 /* Full reset sdrams, this also re-inits the MDLL */
1890 radeon_pm_full_reset_sdram(rinfo);
1891
1892 /* Fill palettes */
1893 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | 0x20);
1894 for (i=0; i<256; i++)
1895 OUTREG(PALETTE_30_DATA, 0x15555555);
1896 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~20);
1897 udelay(20);
1898 for (i=0; i<256; i++)
1899 OUTREG(PALETTE_30_DATA, 0x15555555);
1900
1901 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~0x20);
1902 mdelay(3);
1903
1904 /* Restore TMDS */
1905 OUTREG(FP_GEN_CNTL, rinfo->save_regs[82]);
1906 OUTREG(FP2_GEN_CNTL, rinfo->save_regs[83]);
1907
1908 /* Set LVDS registers but keep interface & pll down */
1909 OUTREG(LVDS_GEN_CNTL, rinfo->save_regs[11] &
1910 ~(LVDS_EN | LVDS_ON | LVDS_DIGON | LVDS_BLON | LVDS_BL_MOD_EN));
1911 OUTREG(LVDS_PLL_CNTL, (rinfo->save_regs[12] & ~0xf0000) | 0x20000);
1912
1913 OUTREG(DISP_OUTPUT_CNTL, rinfo->save_regs[86]);
1914
1915 /* Restore GPIOPAD state */
1916 OUTREG(GPIOPAD_A, rinfo->save_regs[19]);
1917 OUTREG(GPIOPAD_EN, rinfo->save_regs[20]);
1918 OUTREG(GPIOPAD_MASK, rinfo->save_regs[21]);
1919
1920 /* write some stuff to the framebuffer... */
1921 for (i = 0; i < 0x8000; ++i)
1922 writeb(0, rinfo->fb_base + i);
1923
1924 mdelay(40);
1925 OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) | LVDS_DIGON | LVDS_ON);
1926 mdelay(40);
1927
1928 /* Restore a few more things */
1929 OUTREG(GRPH_BUFFER_CNTL, rinfo->save_regs[94]);
1930 OUTREG(GRPH2_BUFFER_CNTL, rinfo->save_regs[95]);
1931
1932 /* Take care of spread spectrum & PPLLs now */
1933 radeon_pm_m10_disable_spread_spectrum(rinfo);
1934 radeon_pm_restore_pixel_pll(rinfo);
1935
1936 /* GRRRR... I can't figure out the proper LVDS power sequence, and the
1937 * code I have for blank/unblank doesn't quite work on some laptop models
1938 * it seems ... Hrm. What I have here works most of the time ...
1939 */
1940 radeon_pm_m10_enable_lvds_spread_spectrum(rinfo);
1941 }
1942
1943 #ifdef CONFIG_PPC_OF
1944
1945 static void radeon_pm_m9p_reconfigure_mc(struct radeonfb_info *rinfo)
1946 {
1947 OUTREG(MC_CNTL, rinfo->save_regs[46]);
1948 OUTREG(MC_INIT_GFX_LAT_TIMER, rinfo->save_regs[47]);
1949 OUTREG(MC_INIT_MISC_LAT_TIMER, rinfo->save_regs[48]);
1950 OUTREG(MEM_SDRAM_MODE_REG,
1951 rinfo->save_regs[35] & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
1952 OUTREG(MC_TIMING_CNTL, rinfo->save_regs[49]);
1953 OUTREG(MC_READ_CNTL_AB, rinfo->save_regs[50]);
1954 OUTREG(MEM_REFRESH_CNTL, rinfo->save_regs[42]);
1955 OUTREG(MC_IOPAD_CNTL, rinfo->save_regs[51]);
1956 OUTREG(MC_DEBUG, rinfo->save_regs[53]);
1957 OUTREG(MC_CHIP_IO_OE_CNTL_AB, rinfo->save_regs[52]);
1958
1959 OUTMC(rinfo, ixMC_IMP_CNTL, rinfo->save_regs[59] /*0x00f460d6*/);
1960 OUTMC(rinfo, ixMC_CHP_IO_CNTL_A0, rinfo->save_regs[65] /*0xfecfa666*/);
1961 OUTMC(rinfo, ixMC_CHP_IO_CNTL_A1, rinfo->save_regs[66] /*0x141555ff*/);
1962 OUTMC(rinfo, ixMC_CHP_IO_CNTL_B0, rinfo->save_regs[67] /*0xfecfa666*/);
1963 OUTMC(rinfo, ixMC_CHP_IO_CNTL_B1, rinfo->save_regs[68] /*0x141555ff*/);
1964 OUTMC(rinfo, ixMC_IMP_CNTL_0, rinfo->save_regs[71] /*0x00009249*/);
1965 OUTREG(MC_IND_INDEX, 0);
1966 OUTREG(CNFG_MEMSIZE, rinfo->video_ram);
1967
1968 mdelay(20);
1969 }
1970
1971 static void radeon_reinitialize_M9P(struct radeonfb_info *rinfo)
1972 {
1973 u32 tmp, i;
1974
1975 /* Restore a bunch of registers first */
1976 OUTREG(SURFACE_CNTL, rinfo->save_regs[29]);
1977 OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
1978 OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
1979 OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
1980 OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
1981 OUTREG(OV0_BASE_ADDR, rinfo->save_regs[80]);
1982 OUTREG(BUS_CNTL, rinfo->save_regs[36]);
1983 OUTREG(BUS_CNTL1, rinfo->save_regs[14]);
1984 OUTREG(MPP_TB_CONFIG, rinfo->save_regs[37]);
1985 OUTREG(FCP_CNTL, rinfo->save_regs[38]);
1986 OUTREG(RBBM_CNTL, rinfo->save_regs[39]);
1987
1988 OUTREG(DAC_CNTL, rinfo->save_regs[40]);
1989 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | DAC2_EXPAND_MODE);
1990
1991 /* Reset the PAD CTLR */
1992 radeon_pm_reset_pad_ctlr_strength(rinfo);
1993
1994 /* Some PLLs are Read & written identically in the trace here...
1995 * I suppose it's actually to switch them all off & reset,
1996 * let's assume off is what we want. I'm just doing that for all major PLLs now.
1997 */
1998 radeon_pm_all_ppls_off(rinfo);
1999
2000 /* Clear tiling, reset swappers */
2001 INREG(SURFACE_CNTL);
2002 OUTREG(SURFACE_CNTL, 0);
2003
2004 /* Some black magic with TV_DAC_CNTL, we should restore those from backups
2005 * rather than hard coding...
2006 */
2007 tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_BGADJ_MASK;
2008 tmp |= 6 << TV_DAC_CNTL_BGADJ__SHIFT;
2009 OUTREG(TV_DAC_CNTL, tmp);
2010
2011 tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_DACADJ_MASK;
2012 tmp |= 6 << TV_DAC_CNTL_DACADJ__SHIFT;
2013 OUTREG(TV_DAC_CNTL, tmp);
2014
2015 OUTPLL(pllAGP_PLL_CNTL, rinfo->save_regs[78]);
2016
2017 OUTREG(PAMAC0_DLY_CNTL, rinfo->save_regs[54]);
2018 OUTREG(PAMAC1_DLY_CNTL, rinfo->save_regs[55]);
2019 OUTREG(PAMAC2_DLY_CNTL, rinfo->save_regs[79]);
2020
2021 OUTREG(AGP_CNTL, rinfo->save_regs[16]);
2022 OUTREG(HOST_PATH_CNTL, rinfo->save_regs[41]); /* MacOS sets that to 0 !!! */
2023 OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);
2024
2025 tmp = rinfo->save_regs[1]
2026 & ~(CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK |
2027 CLK_PWRMGT_CNTL__MC_BUSY);
2028 OUTPLL(pllCLK_PWRMGT_CNTL, tmp);
2029
2030 OUTREG(FW_CNTL, rinfo->save_regs[57]);
2031
2032 /* Disable SDRAM refresh */
2033 OUTREG(MEM_REFRESH_CNTL, INREG(MEM_REFRESH_CNTL)
2034 | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);
2035
2036 /* Restore XTALIN routing (CLK_PIN_CNTL) */
2037 OUTPLL(pllCLK_PIN_CNTL, rinfo->save_regs[4]);
2038
2039 /* Force MCLK to be PCI sourced and forced ON */
2040 tmp = rinfo->save_regs[2] & 0xff000000;
2041 tmp |= MCLK_CNTL__FORCE_MCLKA |
2042 MCLK_CNTL__FORCE_MCLKB |
2043 MCLK_CNTL__FORCE_YCLKA |
2044 MCLK_CNTL__FORCE_YCLKB |
2045 MCLK_CNTL__FORCE_MC |
2046 MCLK_CNTL__FORCE_AIC;
2047 OUTPLL(pllMCLK_CNTL, tmp);
2048
2049 /* Force SCLK to be PCI sourced with a bunch forced */
2050 tmp = 0 |
2051 SCLK_CNTL__FORCE_DISP2|
2052 SCLK_CNTL__FORCE_CP|
2053 SCLK_CNTL__FORCE_HDP|
2054 SCLK_CNTL__FORCE_DISP1|
2055 SCLK_CNTL__FORCE_TOP|
2056 SCLK_CNTL__FORCE_E2|
2057 SCLK_CNTL__FORCE_SE|
2058 SCLK_CNTL__FORCE_IDCT|
2059 SCLK_CNTL__FORCE_VIP|
2060 SCLK_CNTL__FORCE_RE|
2061 SCLK_CNTL__FORCE_PB|
2062 SCLK_CNTL__FORCE_TAM|
2063 SCLK_CNTL__FORCE_TDM|
2064 SCLK_CNTL__FORCE_RB;
2065 OUTPLL(pllSCLK_CNTL, tmp);
2066
2067 /* Clear VCLK_ECP_CNTL & PIXCLKS_CNTL */
2068 OUTPLL(pllVCLK_ECP_CNTL, 0);
2069 OUTPLL(pllPIXCLKS_CNTL, 0);
2070
2071 /* Setup MCLK_MISC, non dynamic mode */
2072 OUTPLL(pllMCLK_MISC,
2073 MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT |
2074 MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT);
2075
2076 mdelay(5);
2077
2078 /* Set back the default clock dividers */
2079 OUTPLL(pllM_SPLL_REF_FB_DIV, rinfo->save_regs[77]);
2080 OUTPLL(pllMPLL_AUX_CNTL, rinfo->save_regs[75]);
2081 OUTPLL(pllSPLL_AUX_CNTL, rinfo->save_regs[76]);
2082
2083 /* PPLL and P2PLL default values & off */
2084 OUTPLL(pllPPLL_CNTL, rinfo->save_regs[93] | 0x3);
2085 OUTPLL(pllP2PLL_CNTL, rinfo->save_regs[8] | 0x3);
2086
2087 /* S and M PLLs are reset & off, configure them */
2088 OUTPLL(pllMPLL_CNTL, rinfo->save_regs[73] | 0x03);
2089 OUTPLL(pllSPLL_CNTL, rinfo->save_regs[74] | 0x03);
2090
2091 /* Default values for MDLL ... fixme */
2092 OUTPLL(pllMDLL_CKO, 0x9c009c);
2093 OUTPLL(pllMDLL_RDCKA, 0x08830883);
2094 OUTPLL(pllMDLL_RDCKB, 0x08830883);
2095 mdelay(5);
2096
2097 /* Restore PLL_PWRMGT_CNTL */ // XXXX
2098 tmp = rinfo->save_regs[0];
2099 tmp &= ~PLL_PWRMGT_CNTL_SU_SCLK_USE_BCLK;
2100 tmp |= PLL_PWRMGT_CNTL_SU_MCLK_USE_BCLK;
2101 OUTPLL(PLL_PWRMGT_CNTL, tmp);
2102
2103 /* Clear HTOTAL_CNTL & HTOTAL2_CNTL */
2104 OUTPLL(pllHTOTAL_CNTL, 0);
2105 OUTPLL(pllHTOTAL2_CNTL, 0);
2106
2107 /* All outputs off */
2108 OUTREG(CRTC_GEN_CNTL, 0x04000000);
2109 OUTREG(CRTC2_GEN_CNTL, 0x04000000);
2110 OUTREG(FP_GEN_CNTL, 0x00004008);
2111 OUTREG(FP2_GEN_CNTL, 0x00000008);
2112 OUTREG(LVDS_GEN_CNTL, 0x08000008);
2113
2114 /* Restore Memory Controller configuration */
2115 radeon_pm_m9p_reconfigure_mc(rinfo);
2116
2117 /* Now we actually start MCLK and SCLK */
2118 radeon_pm_start_mclk_sclk(rinfo);
2119
2120 /* Full reset sdrams, this also re-inits the MDLL */
2121 radeon_pm_full_reset_sdram(rinfo);
2122
2123 /* Fill palettes */
2124 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | 0x20);
2125 for (i=0; i<256; i++)
2126 OUTREG(PALETTE_30_DATA, 0x15555555);
2127 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~20);
2128 udelay(20);
2129 for (i=0; i<256; i++)
2130 OUTREG(PALETTE_30_DATA, 0x15555555);
2131
2132 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~0x20);
2133 mdelay(3);
2134
2135 /* Restore TV stuff, make sure TV DAC is down */
2136 OUTREG(TV_MASTER_CNTL, rinfo->save_regs[88]);
2137 OUTREG(TV_DAC_CNTL, rinfo->save_regs[13] | 0x07000000);
2138
2139 /* Restore GPIOS. MacOS does some magic here with one of the GPIO bits,
2140 * possibly related to the weird PLL related workarounds and to the
2141 * fact that CLK_PIN_CNTL is tweaked in ways I don't fully understand,
2142 * but we keep things the simple way here
2143 */
2144 OUTREG(GPIOPAD_A, rinfo->save_regs[19]);
2145 OUTREG(GPIOPAD_EN, rinfo->save_regs[20]);
2146 OUTREG(GPIOPAD_MASK, rinfo->save_regs[21]);
2147
2148 /* Now do things with SCLK_MORE_CNTL. Force bits are already set, copy
2149 * high bits from backup
2150 */
2151 tmp = INPLL(pllSCLK_MORE_CNTL) & 0x0000ffff;
2152 tmp |= rinfo->save_regs[34] & 0xffff0000;
2153 tmp |= SCLK_MORE_CNTL__FORCE_DISPREGS;
2154 OUTPLL(pllSCLK_MORE_CNTL, tmp);
2155
2156 tmp = INPLL(pllSCLK_MORE_CNTL) & 0x0000ffff;
2157 tmp |= rinfo->save_regs[34] & 0xffff0000;
2158 tmp |= SCLK_MORE_CNTL__FORCE_DISPREGS;
2159 OUTPLL(pllSCLK_MORE_CNTL, tmp);
2160
2161 OUTREG(LVDS_GEN_CNTL, rinfo->save_regs[11] &
2162 ~(LVDS_EN | LVDS_ON | LVDS_DIGON | LVDS_BLON | LVDS_BL_MOD_EN));
2163 OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) | LVDS_BLON);
2164 OUTREG(LVDS_PLL_CNTL, (rinfo->save_regs[12] & ~0xf0000) | 0x20000);
2165 mdelay(20);
2166
2167 /* write some stuff to the framebuffer... */
2168 for (i = 0; i < 0x8000; ++i)
2169 writeb(0, rinfo->fb_base + i);
2170
2171 OUTREG(0x2ec, 0x6332a020);
2172 OUTPLL(pllSSPLL_REF_DIV, rinfo->save_regs[44] /*0x3f */);
2173 OUTPLL(pllSSPLL_DIV_0, rinfo->save_regs[45] /*0x000081bb */);
2174 tmp = INPLL(pllSSPLL_CNTL);
2175 tmp &= ~2;
2176 OUTPLL(pllSSPLL_CNTL, tmp);
2177 mdelay(6);
2178 tmp &= ~1;
2179 OUTPLL(pllSSPLL_CNTL, tmp);
2180 mdelay(5);
2181 tmp |= 3;
2182 OUTPLL(pllSSPLL_CNTL, tmp);
2183 mdelay(5);
2184
2185 OUTPLL(pllSS_INT_CNTL, rinfo->save_regs[90] & ~3);/*0x0020300c*/
2186 OUTREG(0x2ec, 0x6332a3f0);
2187 mdelay(17);
2188
2189 OUTPLL(pllPPLL_REF_DIV, rinfo->pll.ref_div);
2190 OUTPLL(pllPPLL_DIV_0, rinfo->save_regs[92]);
2191
2192 mdelay(40);
2193 OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) | LVDS_DIGON | LVDS_ON);
2194 mdelay(40);
2195
2196 /* Restore a few more things */
2197 OUTREG(GRPH_BUFFER_CNTL, rinfo->save_regs[94]);
2198 OUTREG(GRPH2_BUFFER_CNTL, rinfo->save_regs[95]);
2199
2200 /* Restore PPLL, spread spectrum & LVDS */
2201 radeon_pm_m10_disable_spread_spectrum(rinfo);
2202 radeon_pm_restore_pixel_pll(rinfo);
2203 radeon_pm_m10_enable_lvds_spread_spectrum(rinfo);
2204 }
2205
2206 #if 0 /* Not ready yet */
2207 static void radeon_reinitialize_QW(struct radeonfb_info *rinfo)
2208 {
2209 int i;
2210 u32 tmp, tmp2;
2211 u32 cko, cka, ckb;
2212 u32 cgc, cec, c2gc;
2213
2214 OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
2215 OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
2216 OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
2217 OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
2218 OUTREG(BUS_CNTL, rinfo->save_regs[36]);
2219 OUTREG(RBBM_CNTL, rinfo->save_regs[39]);
2220
2221 INREG(PAD_CTLR_STRENGTH);
2222 OUTREG(PAD_CTLR_STRENGTH, INREG(PAD_CTLR_STRENGTH) & ~0x10000);
2223 for (i = 0; i < 65; ++i) {
2224 mdelay(1);
2225 INREG(PAD_CTLR_STRENGTH);
2226 }
2227
2228 OUTREG(DISP_TEST_DEBUG_CNTL, INREG(DISP_TEST_DEBUG_CNTL) | 0x10000000);
2229 OUTREG(OV0_FLAG_CNTRL, INREG(OV0_FLAG_CNTRL) | 0x100);
2230 OUTREG(CRTC_GEN_CNTL, INREG(CRTC_GEN_CNTL));
2231 OUTREG(DAC_CNTL, 0xff00410a);
2232 OUTREG(CRTC2_GEN_CNTL, INREG(CRTC2_GEN_CNTL));
2233 OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | 0x4000);
2234
2235 OUTREG(SURFACE_CNTL, rinfo->save_regs[29]);
2236 OUTREG(AGP_CNTL, rinfo->save_regs[16]);
2237 OUTREG(HOST_PATH_CNTL, rinfo->save_regs[41]);
2238 OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);
2239
2240 OUTMC(rinfo, ixMC_CHP_IO_CNTL_A0, 0xf7bb4433);
2241 OUTREG(MC_IND_INDEX, 0);
2242 OUTMC(rinfo, ixMC_CHP_IO_CNTL_B0, 0xf7bb4433);
2243 OUTREG(MC_IND_INDEX, 0);
2244
2245 OUTREG(CRTC_MORE_CNTL, INREG(CRTC_MORE_CNTL));
2246
2247 tmp = INPLL(pllVCLK_ECP_CNTL);
2248 OUTPLL(pllVCLK_ECP_CNTL, tmp);
2249 tmp = INPLL(pllPIXCLKS_CNTL);
2250 OUTPLL(pllPIXCLKS_CNTL, tmp);
2251
2252 OUTPLL(MCLK_CNTL, 0xaa3f0000);
2253 OUTPLL(SCLK_CNTL, 0xffff0000);
2254 OUTPLL(pllMPLL_AUX_CNTL, 6);
2255 OUTPLL(pllSPLL_AUX_CNTL, 1);
2256 OUTPLL(MDLL_CKO, 0x9f009f);
2257 OUTPLL(MDLL_RDCKA, 0x830083);
2258 OUTPLL(pllMDLL_RDCKB, 0x830083);
2259 OUTPLL(PPLL_CNTL, 0xa433);
2260 OUTPLL(P2PLL_CNTL, 0xa433);
2261 OUTPLL(MPLL_CNTL, 0x0400a403);
2262 OUTPLL(SPLL_CNTL, 0x0400a433);
2263
2264 tmp = INPLL(M_SPLL_REF_FB_DIV);
2265 OUTPLL(M_SPLL_REF_FB_DIV, tmp);
2266 tmp = INPLL(M_SPLL_REF_FB_DIV);
2267 OUTPLL(M_SPLL_REF_FB_DIV, tmp | 0xc);
2268 INPLL(M_SPLL_REF_FB_DIV);
2269
2270 tmp = INPLL(MPLL_CNTL);
2271 OUTREG8(CLOCK_CNTL_INDEX, MPLL_CNTL + PLL_WR_EN);
2272 radeon_pll_errata_after_index(rinfo);
2273 OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
2274 radeon_pll_errata_after_data(rinfo);
2275
2276 tmp = INPLL(M_SPLL_REF_FB_DIV);
2277 OUTPLL(M_SPLL_REF_FB_DIV, tmp | 0x5900);
2278
2279 tmp = INPLL(MPLL_CNTL);
2280 OUTPLL(MPLL_CNTL, tmp & ~0x2);
2281 mdelay(1);
2282 tmp = INPLL(MPLL_CNTL);
2283 OUTPLL(MPLL_CNTL, tmp & ~0x1);
2284 mdelay(10);
2285
2286 OUTPLL(MCLK_CNTL, 0xaa3f1212);
2287 mdelay(1);
2288
2289 INPLL(M_SPLL_REF_FB_DIV);
2290 INPLL(MCLK_CNTL);
2291 INPLL(M_SPLL_REF_FB_DIV);
2292
2293 tmp = INPLL(SPLL_CNTL);
2294 OUTREG8(CLOCK_CNTL_INDEX, SPLL_CNTL + PLL_WR_EN);
2295 radeon_pll_errata_after_index(rinfo);
2296 OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
2297 radeon_pll_errata_after_data(rinfo);
2298
2299 tmp = INPLL(M_SPLL_REF_FB_DIV);
2300 OUTPLL(M_SPLL_REF_FB_DIV, tmp | 0x780000);
2301
2302 tmp = INPLL(SPLL_CNTL);
2303 OUTPLL(SPLL_CNTL, tmp & ~0x1);
2304 mdelay(1);
2305 tmp = INPLL(SPLL_CNTL);
2306 OUTPLL(SPLL_CNTL, tmp & ~0x2);
2307 mdelay(10);
2308
2309 tmp = INPLL(SCLK_CNTL);
2310 OUTPLL(SCLK_CNTL, tmp | 2);
2311 mdelay(1);
2312
2313 cko = INPLL(pllMDLL_CKO);
2314 cka = INPLL(pllMDLL_RDCKA);
2315 ckb = INPLL(pllMDLL_RDCKB);
2316
2317 cko &= ~(MDLL_CKO__MCKOA_SLEEP | MDLL_CKO__MCKOB_SLEEP);
2318 OUTPLL(pllMDLL_CKO, cko);
2319 mdelay(1);
2320 cko &= ~(MDLL_CKO__MCKOA_RESET | MDLL_CKO__MCKOB_RESET);
2321 OUTPLL(pllMDLL_CKO, cko);
2322 mdelay(5);
2323
2324 cka &= ~(MDLL_RDCKA__MRDCKA0_SLEEP | MDLL_RDCKA__MRDCKA1_SLEEP);
2325 OUTPLL(pllMDLL_RDCKA, cka);
2326 mdelay(1);
2327 cka &= ~(MDLL_RDCKA__MRDCKA0_RESET | MDLL_RDCKA__MRDCKA1_RESET);
2328 OUTPLL(pllMDLL_RDCKA, cka);
2329 mdelay(5);
2330
2331 ckb &= ~(MDLL_RDCKB__MRDCKB0_SLEEP | MDLL_RDCKB__MRDCKB1_SLEEP);
2332 OUTPLL(pllMDLL_RDCKB, ckb);
2333 mdelay(1);
2334 ckb &= ~(MDLL_RDCKB__MRDCKB0_RESET | MDLL_RDCKB__MRDCKB1_RESET);
2335 OUTPLL(pllMDLL_RDCKB, ckb);
2336 mdelay(5);
2337
2338 OUTMC(rinfo, ixMC_CHP_IO_CNTL_A1, 0x151550ff);
2339 OUTREG(MC_IND_INDEX, 0);
2340 OUTMC(rinfo, ixMC_CHP_IO_CNTL_B1, 0x151550ff);
2341 OUTREG(MC_IND_INDEX, 0);
2342 mdelay(1);
2343 OUTMC(rinfo, ixMC_CHP_IO_CNTL_A1, 0x141550ff);
2344 OUTREG(MC_IND_INDEX, 0);
2345 OUTMC(rinfo, ixMC_CHP_IO_CNTL_B1, 0x141550ff);
2346 OUTREG(MC_IND_INDEX, 0);
2347 mdelay(1);
2348
2349 OUTPLL(pllHTOTAL_CNTL, 0);
2350 OUTPLL(pllHTOTAL2_CNTL, 0);
2351
2352 OUTREG(MEM_CNTL, 0x29002901);
2353 OUTREG(MEM_SDRAM_MODE_REG, 0x45320032); /* XXX use save_regs[35]? */
2354 OUTREG(EXT_MEM_CNTL, 0x1a394333);
2355 OUTREG(MEM_IO_CNTL_A1, 0x0aac0aac);
2356 OUTREG(MEM_INIT_LATENCY_TIMER, 0x34444444);
2357 OUTREG(MEM_REFRESH_CNTL, 0x1f1f7218); /* XXX or save_regs[42]? */
2358 OUTREG(MC_DEBUG, 0);
2359 OUTREG(MEM_IO_OE_CNTL, 0x04300430);
2360
2361 OUTMC(rinfo, ixMC_IMP_CNTL, 0x00f460d6);
2362 OUTREG(MC_IND_INDEX, 0);
2363 OUTMC(rinfo, ixMC_IMP_CNTL_0, 0x00009249);
2364 OUTREG(MC_IND_INDEX, 0);
2365
2366 OUTREG(CNFG_MEMSIZE, rinfo->video_ram);
2367
2368 radeon_pm_full_reset_sdram(rinfo);
2369
2370 INREG(FP_GEN_CNTL);
2371 OUTREG(TMDS_CNTL, 0x01000000); /* XXX ? */
2372 tmp = INREG(FP_GEN_CNTL);
2373 tmp |= FP_CRTC_DONT_SHADOW_HEND | FP_CRTC_DONT_SHADOW_VPAR | 0x200;
2374 OUTREG(FP_GEN_CNTL, tmp);
2375
2376 tmp = INREG(DISP_OUTPUT_CNTL);
2377 tmp &= ~0x400;
2378 OUTREG(DISP_OUTPUT_CNTL, tmp);
2379
2380 OUTPLL(CLK_PIN_CNTL, rinfo->save_regs[4]);
2381 OUTPLL(CLK_PWRMGT_CNTL, rinfo->save_regs[1]);
2382 OUTPLL(PLL_PWRMGT_CNTL, rinfo->save_regs[0]);
2383
2384 tmp = INPLL(MCLK_MISC);
2385 tmp |= MCLK_MISC__MC_MCLK_DYN_ENABLE | MCLK_MISC__IO_MCLK_DYN_ENABLE;
2386 OUTPLL(MCLK_MISC, tmp);
2387
2388 tmp = INPLL(SCLK_CNTL);
2389 OUTPLL(SCLK_CNTL, tmp);
2390
2391 OUTREG(CRTC_MORE_CNTL, 0);
2392 OUTREG8(CRTC_GEN_CNTL+1, 6);
2393 OUTREG8(CRTC_GEN_CNTL+3, 1);
2394 OUTREG(CRTC_PITCH, 32);
2395
2396 tmp = INPLL(VCLK_ECP_CNTL);
2397 OUTPLL(VCLK_ECP_CNTL, tmp);
2398
2399 tmp = INPLL(PPLL_CNTL);
2400 OUTPLL(PPLL_CNTL, tmp);
2401
2402 /* palette stuff and BIOS_1_SCRATCH... */
2403
2404 tmp = INREG(FP_GEN_CNTL);
2405 tmp2 = INREG(TMDS_TRANSMITTER_CNTL);
2406 tmp |= 2;
2407 OUTREG(FP_GEN_CNTL, tmp);
2408 mdelay(5);
2409 OUTREG(FP_GEN_CNTL, tmp);
2410 mdelay(5);
2411 OUTREG(TMDS_TRANSMITTER_CNTL, tmp2);
2412 OUTREG(CRTC_MORE_CNTL, 0);
2413 mdelay(20);
2414
2415 tmp = INREG(CRTC_MORE_CNTL);
2416 OUTREG(CRTC_MORE_CNTL, tmp);
2417
2418 cgc = INREG(CRTC_GEN_CNTL);
2419 cec = INREG(CRTC_EXT_CNTL);
2420 c2gc = INREG(CRTC2_GEN_CNTL);
2421
2422 OUTREG(CRTC_H_SYNC_STRT_WID, 0x008e0580);
2423 OUTREG(CRTC_H_TOTAL_DISP, 0x009f00d2);
2424 OUTREG8(CLOCK_CNTL_INDEX, HTOTAL_CNTL + PLL_WR_EN);
2425 radeon_pll_errata_after_index(rinfo);
2426 OUTREG8(CLOCK_CNTL_DATA, 0);
2427 radeon_pll_errata_after_data(rinfo);
2428 OUTREG(CRTC_V_SYNC_STRT_WID, 0x00830403);
2429 OUTREG(CRTC_V_TOTAL_DISP, 0x03ff0429);
2430 OUTREG(FP_CRTC_H_TOTAL_DISP, 0x009f0033);
2431 OUTREG(FP_H_SYNC_STRT_WID, 0x008e0080);
2432 OUTREG(CRT_CRTC_H_SYNC_STRT_WID, 0x008e0080);
2433 OUTREG(FP_CRTC_V_TOTAL_DISP, 0x03ff002a);
2434 OUTREG(FP_V_SYNC_STRT_WID, 0x00830004);
2435 OUTREG(CRT_CRTC_V_SYNC_STRT_WID, 0x00830004);
2436 OUTREG(FP_HORZ_VERT_ACTIVE, 0x009f03ff);
2437 OUTREG(FP_HORZ_STRETCH, 0);
2438 OUTREG(FP_VERT_STRETCH, 0);
2439 OUTREG(OVR_CLR, 0);
2440 OUTREG(OVR_WID_LEFT_RIGHT, 0);
2441 OUTREG(OVR_WID_TOP_BOTTOM, 0);
2442
2443 tmp = INPLL(PPLL_REF_DIV);
2444 tmp = (tmp & ~PPLL_REF_DIV_MASK) | rinfo->pll.ref_div;
2445 OUTPLL(PPLL_REF_DIV, tmp);
2446 INPLL(PPLL_REF_DIV);
2447
2448 OUTREG8(CLOCK_CNTL_INDEX, PPLL_CNTL + PLL_WR_EN);
2449 radeon_pll_errata_after_index(rinfo);
2450 OUTREG8(CLOCK_CNTL_DATA + 1, 0xbc);
2451 radeon_pll_errata_after_data(rinfo);
2452
2453 tmp = INREG(CLOCK_CNTL_INDEX);
2454 radeon_pll_errata_after_index(rinfo);
2455 OUTREG(CLOCK_CNTL_INDEX, tmp & 0xff);
2456 radeon_pll_errata_after_index(rinfo);
2457 radeon_pll_errata_after_data(rinfo);
2458
2459 OUTPLL(PPLL_DIV_0, 0x48090);
2460
2461 tmp = INPLL(PPLL_CNTL);
2462 OUTPLL(PPLL_CNTL, tmp & ~0x2);
2463 mdelay(1);
2464 tmp = INPLL(PPLL_CNTL);
2465 OUTPLL(PPLL_CNTL, tmp & ~0x1);
2466 mdelay(10);
2467
2468 tmp = INPLL(VCLK_ECP_CNTL);
2469 OUTPLL(VCLK_ECP_CNTL, tmp | 3);
2470 mdelay(1);
2471
2472 tmp = INPLL(VCLK_ECP_CNTL);
2473 OUTPLL(VCLK_ECP_CNTL, tmp);
2474
2475 c2gc |= CRTC2_DISP_REQ_EN_B;
2476 OUTREG(CRTC2_GEN_CNTL, c2gc);
2477 cgc |= CRTC_EN;
2478 OUTREG(CRTC_GEN_CNTL, cgc);
2479 OUTREG(CRTC_EXT_CNTL, cec);
2480 OUTREG(CRTC_PITCH, 0xa0);
2481 OUTREG(CRTC_OFFSET, 0);
2482 OUTREG(CRTC_OFFSET_CNTL, 0);
2483
2484 OUTREG(GRPH_BUFFER_CNTL, 0x20117c7c);
2485 OUTREG(GRPH2_BUFFER_CNTL, 0x00205c5c);
2486
2487 tmp2 = INREG(FP_GEN_CNTL);
2488 tmp = INREG(TMDS_TRANSMITTER_CNTL);
2489 OUTREG(0x2a8, 0x0000061b);
2490 tmp |= TMDS_PLL_EN;
2491 OUTREG(TMDS_TRANSMITTER_CNTL, tmp);
2492 mdelay(1);
2493 tmp &= ~TMDS_PLLRST;
2494 OUTREG(TMDS_TRANSMITTER_CNTL, tmp);
2495 tmp2 &= ~2;
2496 tmp2 |= FP_TMDS_EN;
2497 OUTREG(FP_GEN_CNTL, tmp2);
2498 mdelay(5);
2499 tmp2 |= FP_FPON;
2500 OUTREG(FP_GEN_CNTL, tmp2);
2501
2502 OUTREG(CUR_HORZ_VERT_OFF, CUR_LOCK | 1);
2503 cgc = INREG(CRTC_GEN_CNTL);
2504 OUTREG(CUR_HORZ_VERT_POSN, 0xbfff0fff);
2505 cgc |= 0x10000;
2506 OUTREG(CUR_OFFSET, 0);
2507 }
2508 #endif /* 0 */
2509
2510 #endif /* CONFIG_PPC_OF */
2511
2512 static void radeonfb_whack_power_state(struct radeonfb_info *rinfo, pci_power_t state)
2513 {
2514 u16 pwr_cmd;
2515
2516 for (;;) {
2517 pci_read_config_word(rinfo->pdev,
2518 rinfo->pm_reg+PCI_PM_CTRL,
2519 &pwr_cmd);
2520 if (pwr_cmd & 2)
2521 break;
2522 pwr_cmd = (pwr_cmd & ~PCI_PM_CTRL_STATE_MASK) | 2;
2523 pci_write_config_word(rinfo->pdev,
2524 rinfo->pm_reg+PCI_PM_CTRL,
2525 pwr_cmd);
2526 msleep(500);
2527 }
2528 rinfo->pdev->current_state = state;
2529 }
2530
2531 static void radeon_set_suspend(struct radeonfb_info *rinfo, int suspend)
2532 {
2533 u32 tmp;
2534
2535 if (!rinfo->pm_reg)
2536 return;
2537
2538 /* Set the chip into appropriate suspend mode (we use D2,
2539 * D3 would require a compete re-initialization of the chip,
2540 * including PCI config registers, clocks, AGP conf, ...)
2541 */
2542 if (suspend) {
2543 printk(KERN_DEBUG "radeonfb (%s): switching to D2 state...\n",
2544 pci_name(rinfo->pdev));
2545
2546 /* Disable dynamic power management of clocks for the
2547 * duration of the suspend/resume process
2548 */
2549 radeon_pm_disable_dynamic_mode(rinfo);
2550
2551 /* Save some registers */
2552 radeon_pm_save_regs(rinfo, 0);
2553
2554 /* Prepare mobility chips for suspend.
2555 */
2556 if (rinfo->is_mobility) {
2557 /* Program V2CLK */
2558 radeon_pm_program_v2clk(rinfo);
2559
2560 /* Disable IO PADs */
2561 radeon_pm_disable_iopad(rinfo);
2562
2563 /* Set low current */
2564 radeon_pm_low_current(rinfo);
2565
2566 /* Prepare chip for power management */
2567 radeon_pm_setup_for_suspend(rinfo);
2568
2569 if (rinfo->family <= CHIP_FAMILY_RV280) {
2570 /* Reset the MDLL */
2571 /* because both INPLL and OUTPLL take the same
2572 * lock, that's why. */
2573 tmp = INPLL( pllMDLL_CKO) | MDLL_CKO__MCKOA_RESET
2574 | MDLL_CKO__MCKOB_RESET;
2575 OUTPLL( pllMDLL_CKO, tmp );
2576 }
2577 }
2578
2579 /* Switch PCI power management to D2. */
2580 pci_disable_device(rinfo->pdev);
2581 pci_save_state(rinfo->pdev);
2582 /* The chip seems to need us to whack the PM register
2583 * repeatedly until it sticks. We do that -prior- to
2584 * calling pci_set_power_state()
2585 */
2586 radeonfb_whack_power_state(rinfo, PCI_D2);
2587 __pci_complete_power_transition(rinfo->pdev, PCI_D2);
2588 } else {
2589 printk(KERN_DEBUG "radeonfb (%s): switching to D0 state...\n",
2590 pci_name(rinfo->pdev));
2591
2592 if (rinfo->family <= CHIP_FAMILY_RV250) {
2593 /* Reset the SDRAM controller */
2594 radeon_pm_full_reset_sdram(rinfo);
2595
2596 /* Restore some registers */
2597 radeon_pm_restore_regs(rinfo);
2598 } else {
2599 /* Restore registers first */
2600 radeon_pm_restore_regs(rinfo);
2601 /* init sdram controller */
2602 radeon_pm_full_reset_sdram(rinfo);
2603 }
2604 }
2605 }
2606
2607 int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t mesg)
2608 {
2609 struct fb_info *info = pci_get_drvdata(pdev);
2610 struct radeonfb_info *rinfo = info->par;
2611
2612 if (mesg.event == pdev->dev.power.power_state.event)
2613 return 0;
2614
2615 printk(KERN_DEBUG "radeonfb (%s): suspending for event: %d...\n",
2616 pci_name(pdev), mesg.event);
2617
2618 /* For suspend-to-disk, we cheat here. We don't suspend anything and
2619 * let fbcon continue drawing until we are all set. That shouldn't
2620 * really cause any problem at this point, provided that the wakeup
2621 * code knows that any state in memory may not match the HW
2622 */
2623 switch (mesg.event) {
2624 case PM_EVENT_FREEZE: /* about to take snapshot */
2625 case PM_EVENT_PRETHAW: /* before restoring snapshot */
2626 goto done;
2627 }
2628
2629 console_lock();
2630
2631 fb_set_suspend(info, 1);
2632
2633 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) {
2634 /* Make sure engine is reset */
2635 radeon_engine_idle();
2636 radeonfb_engine_reset(rinfo);
2637 radeon_engine_idle();
2638 }
2639
2640 /* Blank display and LCD */
2641 radeon_screen_blank(rinfo, FB_BLANK_POWERDOWN, 1);
2642
2643 /* Sleep */
2644 rinfo->asleep = 1;
2645 rinfo->lock_blank = 1;
2646 del_timer_sync(&rinfo->lvds_timer);
2647
2648 #ifdef CONFIG_PPC_PMAC
2649 /* On powermac, we have hooks to properly suspend/resume AGP now,
2650 * use them here. We'll ultimately need some generic support here,
2651 * but the generic code isn't quite ready for that yet
2652 */
2653 pmac_suspend_agp_for_card(pdev);
2654 #endif /* CONFIG_PPC_PMAC */
2655
2656 /* It's unclear whether or when the generic code will do that, so let's
2657 * do it ourselves. We save state before we do any power management
2658 */
2659 pci_save_state(pdev);
2660
2661 /* If we support wakeup from poweroff, we save all regs we can including cfg
2662 * space
2663 */
2664 if (rinfo->pm_mode & radeon_pm_off) {
2665 /* Always disable dynamic clocks or weird things are happening when
2666 * the chip goes off (basically the panel doesn't shut down properly
2667 * and we crash on wakeup),
2668 * also, we want the saved regs context to have no dynamic clocks in
2669 * it, we'll restore the dynamic clocks state on wakeup
2670 */
2671 radeon_pm_disable_dynamic_mode(rinfo);
2672 mdelay(50);
2673 radeon_pm_save_regs(rinfo, 1);
2674
2675 if (rinfo->is_mobility && !(rinfo->pm_mode & radeon_pm_d2)) {
2676 /* Switch off LVDS interface */
2677 mdelay(1);
2678 OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_BL_MOD_EN));
2679 mdelay(1);
2680 OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_EN | LVDS_ON));
2681 OUTREG(LVDS_PLL_CNTL, (INREG(LVDS_PLL_CNTL) & ~30000) | 0x20000);
2682 mdelay(20);
2683 OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_DIGON));
2684 }
2685 pci_disable_device(pdev);
2686 }
2687 /* If we support D2, we go to it (should be fixed later with a flag forcing
2688 * D3 only for some laptops)
2689 */
2690 if (rinfo->pm_mode & radeon_pm_d2)
2691 radeon_set_suspend(rinfo, 1);
2692
2693 console_unlock();
2694
2695 done:
2696 pdev->dev.power.power_state = mesg;
2697
2698 return 0;
2699 }
2700
2701 static int radeon_check_power_loss(struct radeonfb_info *rinfo)
2702 {
2703 return rinfo->save_regs[4] != INPLL(CLK_PIN_CNTL) ||
2704 rinfo->save_regs[2] != INPLL(MCLK_CNTL) ||
2705 rinfo->save_regs[3] != INPLL(SCLK_CNTL);
2706 }
2707
2708 int radeonfb_pci_resume(struct pci_dev *pdev)
2709 {
2710 struct fb_info *info = pci_get_drvdata(pdev);
2711 struct radeonfb_info *rinfo = info->par;
2712 int rc = 0;
2713
2714 if (pdev->dev.power.power_state.event == PM_EVENT_ON)
2715 return 0;
2716
2717 if (rinfo->no_schedule) {
2718 if (!console_trylock())
2719 return 0;
2720 } else
2721 console_lock();
2722
2723 printk(KERN_DEBUG "radeonfb (%s): resuming from state: %d...\n",
2724 pci_name(pdev), pdev->dev.power.power_state.event);
2725
2726 /* PCI state will have been restored by the core, so
2727 * we should be in D0 now with our config space fully
2728 * restored
2729 */
2730 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
2731 /* Wakeup chip */
2732 if ((rinfo->pm_mode & radeon_pm_off) && radeon_check_power_loss(rinfo)) {
2733 if (rinfo->reinit_func != NULL)
2734 rinfo->reinit_func(rinfo);
2735 else {
2736 printk(KERN_ERR "radeonfb (%s): can't resume radeon from"
2737 " D3 cold, need softboot !", pci_name(pdev));
2738 rc = -EIO;
2739 goto bail;
2740 }
2741 }
2742 /* If we support D2, try to resume... we should check what was our
2743 * state though... (were we really in D2 state ?). Right now, this code
2744 * is only enable on Macs so it's fine.
2745 */
2746 else if (rinfo->pm_mode & radeon_pm_d2)
2747 radeon_set_suspend(rinfo, 0);
2748
2749 rinfo->asleep = 0;
2750 } else
2751 radeon_engine_idle();
2752
2753 /* Restore display & engine */
2754 radeon_write_mode (rinfo, &rinfo->state, 1);
2755 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
2756 radeonfb_engine_init (rinfo);
2757
2758 fb_pan_display(info, &info->var);
2759 fb_set_cmap(&info->cmap, info);
2760
2761 /* Refresh */
2762 fb_set_suspend(info, 0);
2763
2764 /* Unblank */
2765 rinfo->lock_blank = 0;
2766 radeon_screen_blank(rinfo, FB_BLANK_UNBLANK, 1);
2767
2768 #ifdef CONFIG_PPC_PMAC
2769 /* On powermac, we have hooks to properly suspend/resume AGP now,
2770 * use them here. We'll ultimately need some generic support here,
2771 * but the generic code isn't quite ready for that yet
2772 */
2773 pmac_resume_agp_for_card(pdev);
2774 #endif /* CONFIG_PPC_PMAC */
2775
2776
2777 /* Check status of dynclk */
2778 if (rinfo->dynclk == 1)
2779 radeon_pm_enable_dynamic_mode(rinfo);
2780 else if (rinfo->dynclk == 0)
2781 radeon_pm_disable_dynamic_mode(rinfo);
2782
2783 pdev->dev.power.power_state = PMSG_ON;
2784
2785 bail:
2786 console_unlock();
2787
2788 return rc;
2789 }
2790
2791 #ifdef CONFIG_PPC_OF__disabled
2792 static void radeonfb_early_resume(void *data)
2793 {
2794 struct radeonfb_info *rinfo = data;
2795
2796 rinfo->no_schedule = 1;
2797 pci_restore_state(rinfo->pdev);
2798 radeonfb_pci_resume(rinfo->pdev);
2799 rinfo->no_schedule = 0;
2800 }
2801 #endif /* CONFIG_PPC_OF */
2802
2803 #endif /* CONFIG_PM */
2804
2805 void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep)
2806 {
2807 /* Find PM registers in config space if any*/
2808 rinfo->pm_reg = pci_find_capability(rinfo->pdev, PCI_CAP_ID_PM);
2809
2810 /* Enable/Disable dynamic clocks: TODO add sysfs access */
2811 if (rinfo->family == CHIP_FAMILY_RS480)
2812 rinfo->dynclk = -1;
2813 else
2814 rinfo->dynclk = dynclk;
2815
2816 if (rinfo->dynclk == 1) {
2817 radeon_pm_enable_dynamic_mode(rinfo);
2818 printk("radeonfb: Dynamic Clock Power Management enabled\n");
2819 } else if (rinfo->dynclk == 0) {
2820 radeon_pm_disable_dynamic_mode(rinfo);
2821 printk("radeonfb: Dynamic Clock Power Management disabled\n");
2822 }
2823
2824 #if defined(CONFIG_PM)
2825 #if defined(CONFIG_PPC_PMAC)
2826 /* Check if we can power manage on suspend/resume. We can do
2827 * D2 on M6, M7 and M9, and we can resume from D3 cold a few other
2828 * "Mac" cards, but that's all. We need more infos about what the
2829 * BIOS does tho. Right now, all this PM stuff is pmac-only for that
2830 * reason. --BenH
2831 */
2832 if (machine_is(powermac) && rinfo->of_node) {
2833 if (rinfo->is_mobility && rinfo->pm_reg &&
2834 rinfo->family <= CHIP_FAMILY_RV250)
2835 rinfo->pm_mode |= radeon_pm_d2;
2836
2837 /* We can restart Jasper (M10 chip in albooks), BlueStone (7500 chip
2838 * in some desktop G4s), Via (M9+ chip on iBook G4) and
2839 * Snowy (M11 chip on iBook G4 manufactured after July 2005)
2840 */
2841 if (!strcmp(rinfo->of_node->name, "ATY,JasperParent") ||
2842 !strcmp(rinfo->of_node->name, "ATY,SnowyParent")) {
2843 rinfo->reinit_func = radeon_reinitialize_M10;
2844 rinfo->pm_mode |= radeon_pm_off;
2845 }
2846 #if 0 /* Not ready yet */
2847 if (!strcmp(rinfo->of_node->name, "ATY,BlueStoneParent")) {
2848 rinfo->reinit_func = radeon_reinitialize_QW;
2849 rinfo->pm_mode |= radeon_pm_off;
2850 }
2851 #endif
2852 if (!strcmp(rinfo->of_node->name, "ATY,ViaParent")) {
2853 rinfo->reinit_func = radeon_reinitialize_M9P;
2854 rinfo->pm_mode |= radeon_pm_off;
2855 }
2856
2857 /* If any of the above is set, we assume the machine can sleep/resume.
2858 * It's a bit of a "shortcut" but will work fine. Ideally, we need infos
2859 * from the platform about what happens to the chip...
2860 * Now we tell the platform about our capability
2861 */
2862 if (rinfo->pm_mode != radeon_pm_none) {
2863 pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, rinfo->of_node, 0, 1);
2864 #if 0 /* Disable the early video resume hack for now as it's causing problems, among
2865 * others we now rely on the PCI core restoring the config space for us, which
2866 * isn't the case with that hack, and that code path causes various things to
2867 * be called with interrupts off while they shouldn't. I'm leaving the code in
2868 * as it can be useful for debugging purposes
2869 */
2870 pmac_set_early_video_resume(radeonfb_early_resume, rinfo);
2871 #endif
2872 }
2873
2874 #if 0
2875 /* Power down TV DAC, that saves a significant amount of power,
2876 * we'll have something better once we actually have some TVOut
2877 * support
2878 */
2879 OUTREG(TV_DAC_CNTL, INREG(TV_DAC_CNTL) | 0x07000000);
2880 #endif
2881 }
2882 #endif /* defined(CONFIG_PPC_PMAC) */
2883 #endif /* defined(CONFIG_PM) */
2884
2885 if (ignore_devlist)
2886 printk(KERN_DEBUG
2887 "radeonfb: skipping test for device workarounds\n");
2888 else
2889 radeon_apply_workarounds(rinfo);
2890
2891 if (force_sleep) {
2892 printk(KERN_DEBUG
2893 "radeonfb: forcefully enabling D2 sleep mode\n");
2894 rinfo->pm_mode |= radeon_pm_d2;
2895 }
2896 }
2897
2898 void radeonfb_pm_exit(struct radeonfb_info *rinfo)
2899 {
2900 #if defined(CONFIG_PM) && defined(CONFIG_PPC_PMAC)
2901 if (rinfo->pm_mode != radeon_pm_none)
2902 pmac_set_early_video_resume(NULL, NULL);
2903 #endif
2904 }