[SUNGEM]: Unbreak Sun GEM chips.
[linux-2.6.git] / arch / powerpc / platforms / powermac / feature.c
1 /*
2  *  arch/ppc/platforms/pmac_feature.c
3  *
4  *  Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
5  *                          Ben. Herrenschmidt (benh@kernel.crashing.org)
6  *
7  *  This program is free software; you can redistribute it and/or
8  *  modify it under the terms of the GNU General Public License
9  *  as published by the Free Software Foundation; either version
10  *  2 of the License, or (at your option) any later version.
11  *
12  *  TODO:
13  *
14  *   - Replace mdelay with some schedule loop if possible
15  *   - Shorten some obfuscated delays on some routines (like modem
16  *     power)
17  *   - Refcount some clocks (see darwin)
18  *   - Split split split...
19  *
20  */
21 #include <linux/config.h>
22 #include <linux/types.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
25 #include <linux/kernel.h>
26 #include <linux/sched.h>
27 #include <linux/spinlock.h>
28 #include <linux/adb.h>
29 #include <linux/pmu.h>
30 #include <linux/ioport.h>
31 #include <linux/pci.h>
32 #include <asm/sections.h>
33 #include <asm/errno.h>
34 #include <asm/ohare.h>
35 #include <asm/heathrow.h>
36 #include <asm/keylargo.h>
37 #include <asm/uninorth.h>
38 #include <asm/io.h>
39 #include <asm/prom.h>
40 #include <asm/machdep.h>
41 #include <asm/pmac_feature.h>
42 #include <asm/dbdma.h>
43 #include <asm/pci-bridge.h>
44 #include <asm/pmac_low_i2c.h>
45
46 #undef DEBUG_FEATURE
47
48 #ifdef DEBUG_FEATURE
49 #define DBG(fmt...) printk(KERN_DEBUG fmt)
50 #else
51 #define DBG(fmt...)
52 #endif
53
54 #ifdef CONFIG_6xx
55 extern int powersave_lowspeed;
56 #endif
57
58 extern int powersave_nap;
59 extern struct device_node *k2_skiplist[2];
60
61 /*
62  * We use a single global lock to protect accesses. Each driver has
63  * to take care of its own locking
64  */
65 DEFINE_SPINLOCK(feature_lock);
66
67 #define LOCK(flags)     spin_lock_irqsave(&feature_lock, flags);
68 #define UNLOCK(flags)   spin_unlock_irqrestore(&feature_lock, flags);
69
70
71 /*
72  * Instance of some macio stuffs
73  */
74 struct macio_chip macio_chips[MAX_MACIO_CHIPS];
75
76 struct macio_chip *macio_find(struct device_node *child, int type)
77 {
78         while(child) {
79                 int     i;
80
81                 for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
82                         if (child == macio_chips[i].of_node &&
83                             (!type || macio_chips[i].type == type))
84                                 return &macio_chips[i];
85                 child = child->parent;
86         }
87         return NULL;
88 }
89 EXPORT_SYMBOL_GPL(macio_find);
90
91 static const char *macio_names[] =
92 {
93         "Unknown",
94         "Grand Central",
95         "OHare",
96         "OHareII",
97         "Heathrow",
98         "Gatwick",
99         "Paddington",
100         "Keylargo",
101         "Pangea",
102         "Intrepid",
103         "K2",
104         "Shasta",
105 };
106
107
108 struct device_node *uninorth_node;
109 u32 __iomem *uninorth_base;
110
111 static u32 uninorth_rev;
112 static int uninorth_maj;
113 static void __iomem *u3_ht_base;
114
115 /*
116  * For each motherboard family, we have a table of functions pointers
117  * that handle the various features.
118  */
119
120 typedef long (*feature_call)(struct device_node *node, long param, long value);
121
122 struct feature_table_entry {
123         unsigned int    selector;
124         feature_call    function;
125 };
126
127 struct pmac_mb_def
128 {
129         const char*                     model_string;
130         const char*                     model_name;
131         int                             model_id;
132         struct feature_table_entry*     features;
133         unsigned long                   board_flags;
134 };
135 static struct pmac_mb_def pmac_mb;
136
137 /*
138  * Here are the chip specific feature functions
139  */
140
141 static inline int simple_feature_tweak(struct device_node *node, int type,
142                                        int reg, u32 mask, int value)
143 {
144         struct macio_chip*      macio;
145         unsigned long           flags;
146
147         macio = macio_find(node, type);
148         if (!macio)
149                 return -ENODEV;
150         LOCK(flags);
151         if (value)
152                 MACIO_BIS(reg, mask);
153         else
154                 MACIO_BIC(reg, mask);
155         (void)MACIO_IN32(reg);
156         UNLOCK(flags);
157
158         return 0;
159 }
160
161 #ifndef CONFIG_POWER4
162
163 static long ohare_htw_scc_enable(struct device_node *node, long param,
164                                  long value)
165 {
166         struct macio_chip*      macio;
167         unsigned long           chan_mask;
168         unsigned long           fcr;
169         unsigned long           flags;
170         int                     htw, trans;
171         unsigned long           rmask;
172
173         macio = macio_find(node, 0);
174         if (!macio)
175                 return -ENODEV;
176         if (!strcmp(node->name, "ch-a"))
177                 chan_mask = MACIO_FLAG_SCCA_ON;
178         else if (!strcmp(node->name, "ch-b"))
179                 chan_mask = MACIO_FLAG_SCCB_ON;
180         else
181                 return -ENODEV;
182
183         htw = (macio->type == macio_heathrow || macio->type == macio_paddington
184                 || macio->type == macio_gatwick);
185         /* On these machines, the HRW_SCC_TRANS_EN_N bit mustn't be touched */
186         trans = (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
187                  pmac_mb.model_id != PMAC_TYPE_YIKES);
188         if (value) {
189 #ifdef CONFIG_ADB_PMU
190                 if ((param & 0xfff) == PMAC_SCC_IRDA)
191                         pmu_enable_irled(1);
192 #endif /* CONFIG_ADB_PMU */
193                 LOCK(flags);
194                 fcr = MACIO_IN32(OHARE_FCR);
195                 /* Check if scc cell need enabling */
196                 if (!(fcr & OH_SCC_ENABLE)) {
197                         fcr |= OH_SCC_ENABLE;
198                         if (htw) {
199                                 /* Side effect: this will also power up the
200                                  * modem, but it's too messy to figure out on which
201                                  * ports this controls the tranceiver and on which
202                                  * it controls the modem
203                                  */
204                                 if (trans)
205                                         fcr &= ~HRW_SCC_TRANS_EN_N;
206                                 MACIO_OUT32(OHARE_FCR, fcr);
207                                 fcr |= (rmask = HRW_RESET_SCC);
208                                 MACIO_OUT32(OHARE_FCR, fcr);
209                         } else {
210                                 fcr |= (rmask = OH_SCC_RESET);
211                                 MACIO_OUT32(OHARE_FCR, fcr);
212                         }
213                         UNLOCK(flags);
214                         (void)MACIO_IN32(OHARE_FCR);
215                         mdelay(15);
216                         LOCK(flags);
217                         fcr &= ~rmask;
218                         MACIO_OUT32(OHARE_FCR, fcr);
219                 }
220                 if (chan_mask & MACIO_FLAG_SCCA_ON)
221                         fcr |= OH_SCCA_IO;
222                 if (chan_mask & MACIO_FLAG_SCCB_ON)
223                         fcr |= OH_SCCB_IO;
224                 MACIO_OUT32(OHARE_FCR, fcr);
225                 macio->flags |= chan_mask;
226                 UNLOCK(flags);
227                 if (param & PMAC_SCC_FLAG_XMON)
228                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
229         } else {
230                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
231                         return -EPERM;
232                 LOCK(flags);
233                 fcr = MACIO_IN32(OHARE_FCR);
234                 if (chan_mask & MACIO_FLAG_SCCA_ON)
235                         fcr &= ~OH_SCCA_IO;
236                 if (chan_mask & MACIO_FLAG_SCCB_ON)
237                         fcr &= ~OH_SCCB_IO;
238                 MACIO_OUT32(OHARE_FCR, fcr);
239                 if ((fcr & (OH_SCCA_IO | OH_SCCB_IO)) == 0) {
240                         fcr &= ~OH_SCC_ENABLE;
241                         if (htw && trans)
242                                 fcr |= HRW_SCC_TRANS_EN_N;
243                         MACIO_OUT32(OHARE_FCR, fcr);
244                 }
245                 macio->flags &= ~(chan_mask);
246                 UNLOCK(flags);
247                 mdelay(10);
248 #ifdef CONFIG_ADB_PMU
249                 if ((param & 0xfff) == PMAC_SCC_IRDA)
250                         pmu_enable_irled(0);
251 #endif /* CONFIG_ADB_PMU */
252         }
253         return 0;
254 }
255
256 static long ohare_floppy_enable(struct device_node *node, long param,
257                                 long value)
258 {
259         return simple_feature_tweak(node, macio_ohare,
260                 OHARE_FCR, OH_FLOPPY_ENABLE, value);
261 }
262
263 static long ohare_mesh_enable(struct device_node *node, long param, long value)
264 {
265         return simple_feature_tweak(node, macio_ohare,
266                 OHARE_FCR, OH_MESH_ENABLE, value);
267 }
268
269 static long ohare_ide_enable(struct device_node *node, long param, long value)
270 {
271         switch(param) {
272         case 0:
273                 /* For some reason, setting the bit in set_initial_features()
274                  * doesn't stick. I'm still investigating... --BenH.
275                  */
276                 if (value)
277                         simple_feature_tweak(node, macio_ohare,
278                                 OHARE_FCR, OH_IOBUS_ENABLE, 1);
279                 return simple_feature_tweak(node, macio_ohare,
280                         OHARE_FCR, OH_IDE0_ENABLE, value);
281         case 1:
282                 return simple_feature_tweak(node, macio_ohare,
283                         OHARE_FCR, OH_BAY_IDE_ENABLE, value);
284         default:
285                 return -ENODEV;
286         }
287 }
288
289 static long ohare_ide_reset(struct device_node *node, long param, long value)
290 {
291         switch(param) {
292         case 0:
293                 return simple_feature_tweak(node, macio_ohare,
294                         OHARE_FCR, OH_IDE0_RESET_N, !value);
295         case 1:
296                 return simple_feature_tweak(node, macio_ohare,
297                         OHARE_FCR, OH_IDE1_RESET_N, !value);
298         default:
299                 return -ENODEV;
300         }
301 }
302
303 static long ohare_sleep_state(struct device_node *node, long param, long value)
304 {
305         struct macio_chip*      macio = &macio_chips[0];
306
307         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
308                 return -EPERM;
309         if (value == 1) {
310                 MACIO_BIC(OHARE_FCR, OH_IOBUS_ENABLE);
311         } else if (value == 0) {
312                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
313         }
314
315         return 0;
316 }
317
318 static long heathrow_modem_enable(struct device_node *node, long param,
319                                   long value)
320 {
321         struct macio_chip*      macio;
322         u8                      gpio;
323         unsigned long           flags;
324
325         macio = macio_find(node, macio_unknown);
326         if (!macio)
327                 return -ENODEV;
328         gpio = MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1;
329         if (!value) {
330                 LOCK(flags);
331                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
332                 UNLOCK(flags);
333                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
334                 mdelay(250);
335         }
336         if (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
337             pmac_mb.model_id != PMAC_TYPE_YIKES) {
338                 LOCK(flags);
339                 if (value)
340                         MACIO_BIC(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
341                 else
342                         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
343                 UNLOCK(flags);
344                 (void)MACIO_IN32(HEATHROW_FCR);
345                 mdelay(250);
346         }
347         if (value) {
348                 LOCK(flags);
349                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
350                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
351                 UNLOCK(flags); mdelay(250); LOCK(flags);
352                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
353                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
354                 UNLOCK(flags); mdelay(250); LOCK(flags);
355                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
356                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
357                 UNLOCK(flags); mdelay(250);
358         }
359         return 0;
360 }
361
362 static long heathrow_floppy_enable(struct device_node *node, long param,
363                                    long value)
364 {
365         return simple_feature_tweak(node, macio_unknown,
366                 HEATHROW_FCR,
367                 HRW_SWIM_ENABLE|HRW_BAY_FLOPPY_ENABLE,
368                 value);
369 }
370
371 static long heathrow_mesh_enable(struct device_node *node, long param,
372                                  long value)
373 {
374         struct macio_chip*      macio;
375         unsigned long           flags;
376
377         macio = macio_find(node, macio_unknown);
378         if (!macio)
379                 return -ENODEV;
380         LOCK(flags);
381         /* Set clear mesh cell enable */
382         if (value)
383                 MACIO_BIS(HEATHROW_FCR, HRW_MESH_ENABLE);
384         else
385                 MACIO_BIC(HEATHROW_FCR, HRW_MESH_ENABLE);
386         (void)MACIO_IN32(HEATHROW_FCR);
387         udelay(10);
388         /* Set/Clear termination power */
389         if (value)
390                 MACIO_BIC(HEATHROW_MBCR, 0x04000000);
391         else
392                 MACIO_BIS(HEATHROW_MBCR, 0x04000000);
393         (void)MACIO_IN32(HEATHROW_MBCR);
394         udelay(10);
395         UNLOCK(flags);
396
397         return 0;
398 }
399
400 static long heathrow_ide_enable(struct device_node *node, long param,
401                                 long value)
402 {
403         switch(param) {
404         case 0:
405                 return simple_feature_tweak(node, macio_unknown,
406                         HEATHROW_FCR, HRW_IDE0_ENABLE, value);
407         case 1:
408                 return simple_feature_tweak(node, macio_unknown,
409                         HEATHROW_FCR, HRW_BAY_IDE_ENABLE, value);
410         default:
411                 return -ENODEV;
412         }
413 }
414
415 static long heathrow_ide_reset(struct device_node *node, long param,
416                                long value)
417 {
418         switch(param) {
419         case 0:
420                 return simple_feature_tweak(node, macio_unknown,
421                         HEATHROW_FCR, HRW_IDE0_RESET_N, !value);
422         case 1:
423                 return simple_feature_tweak(node, macio_unknown,
424                         HEATHROW_FCR, HRW_IDE1_RESET_N, !value);
425         default:
426                 return -ENODEV;
427         }
428 }
429
430 static long heathrow_bmac_enable(struct device_node *node, long param,
431                                  long value)
432 {
433         struct macio_chip*      macio;
434         unsigned long           flags;
435
436         macio = macio_find(node, 0);
437         if (!macio)
438                 return -ENODEV;
439         if (value) {
440                 LOCK(flags);
441                 MACIO_BIS(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
442                 MACIO_BIS(HEATHROW_FCR, HRW_BMAC_RESET);
443                 UNLOCK(flags);
444                 (void)MACIO_IN32(HEATHROW_FCR);
445                 mdelay(10);
446                 LOCK(flags);
447                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_RESET);
448                 UNLOCK(flags);
449                 (void)MACIO_IN32(HEATHROW_FCR);
450                 mdelay(10);
451         } else {
452                 LOCK(flags);
453                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
454                 UNLOCK(flags);
455         }
456         return 0;
457 }
458
459 static long heathrow_sound_enable(struct device_node *node, long param,
460                                   long value)
461 {
462         struct macio_chip*      macio;
463         unsigned long           flags;
464
465         /* B&W G3 and Yikes don't support that properly (the
466          * sound appear to never come back after beeing shut down).
467          */
468         if (pmac_mb.model_id == PMAC_TYPE_YOSEMITE ||
469             pmac_mb.model_id == PMAC_TYPE_YIKES)
470                 return 0;
471
472         macio = macio_find(node, 0);
473         if (!macio)
474                 return -ENODEV;
475         if (value) {
476                 LOCK(flags);
477                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
478                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
479                 UNLOCK(flags);
480                 (void)MACIO_IN32(HEATHROW_FCR);
481         } else {
482                 LOCK(flags);
483                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
484                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
485                 UNLOCK(flags);
486         }
487         return 0;
488 }
489
490 static u32 save_fcr[6];
491 static u32 save_mbcr;
492 static u32 save_gpio_levels[2];
493 static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
494 static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
495 static u32 save_unin_clock_ctl;
496 static struct dbdma_regs save_dbdma[13];
497 static struct dbdma_regs save_alt_dbdma[13];
498
499 static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
500 {
501         int i;
502
503         /* Save state & config of DBDMA channels */
504         for (i = 0; i < 13; i++) {
505                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
506                         (macio->base + ((0x8000+i*0x100)>>2));
507                 save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
508                 save[i].cmdptr = in_le32(&chan->cmdptr);
509                 save[i].intr_sel = in_le32(&chan->intr_sel);
510                 save[i].br_sel = in_le32(&chan->br_sel);
511                 save[i].wait_sel = in_le32(&chan->wait_sel);
512         }
513 }
514
515 static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
516 {
517         int i;
518
519         /* Save state & config of DBDMA channels */
520         for (i = 0; i < 13; i++) {
521                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
522                         (macio->base + ((0x8000+i*0x100)>>2));
523                 out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
524                 while (in_le32(&chan->status) & ACTIVE)
525                         mb();
526                 out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
527                 out_le32(&chan->cmdptr, save[i].cmdptr);
528                 out_le32(&chan->intr_sel, save[i].intr_sel);
529                 out_le32(&chan->br_sel, save[i].br_sel);
530                 out_le32(&chan->wait_sel, save[i].wait_sel);
531         }
532 }
533
534 static void heathrow_sleep(struct macio_chip *macio, int secondary)
535 {
536         if (secondary) {
537                 dbdma_save(macio, save_alt_dbdma);
538                 save_fcr[2] = MACIO_IN32(0x38);
539                 save_fcr[3] = MACIO_IN32(0x3c);
540         } else {
541                 dbdma_save(macio, save_dbdma);
542                 save_fcr[0] = MACIO_IN32(0x38);
543                 save_fcr[1] = MACIO_IN32(0x3c);
544                 save_mbcr = MACIO_IN32(0x34);
545                 /* Make sure sound is shut down */
546                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
547                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
548                 /* This seems to be necessary as well or the fan
549                  * keeps coming up and battery drains fast */
550                 MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
551                 MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
552                 /* Make sure eth is down even if module or sleep
553                  * won't work properly */
554                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
555         }
556         /* Make sure modem is shut down */
557         MACIO_OUT8(HRW_GPIO_MODEM_RESET,
558                 MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
559         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
560         MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
561
562         /* Let things settle */
563         (void)MACIO_IN32(HEATHROW_FCR);
564 }
565
566 static void heathrow_wakeup(struct macio_chip *macio, int secondary)
567 {
568         if (secondary) {
569                 MACIO_OUT32(0x38, save_fcr[2]);
570                 (void)MACIO_IN32(0x38);
571                 mdelay(1);
572                 MACIO_OUT32(0x3c, save_fcr[3]);
573                 (void)MACIO_IN32(0x38);
574                 mdelay(10);
575                 dbdma_restore(macio, save_alt_dbdma);
576         } else {
577                 MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
578                 (void)MACIO_IN32(0x38);
579                 mdelay(1);
580                 MACIO_OUT32(0x3c, save_fcr[1]);
581                 (void)MACIO_IN32(0x38);
582                 mdelay(1);
583                 MACIO_OUT32(0x34, save_mbcr);
584                 (void)MACIO_IN32(0x38);
585                 mdelay(10);
586                 dbdma_restore(macio, save_dbdma);
587         }
588 }
589
590 static long heathrow_sleep_state(struct device_node *node, long param,
591                                  long value)
592 {
593         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
594                 return -EPERM;
595         if (value == 1) {
596                 if (macio_chips[1].type == macio_gatwick)
597                         heathrow_sleep(&macio_chips[0], 1);
598                 heathrow_sleep(&macio_chips[0], 0);
599         } else if (value == 0) {
600                 heathrow_wakeup(&macio_chips[0], 0);
601                 if (macio_chips[1].type == macio_gatwick)
602                         heathrow_wakeup(&macio_chips[0], 1);
603         }
604         return 0;
605 }
606
607 static long core99_scc_enable(struct device_node *node, long param, long value)
608 {
609         struct macio_chip*      macio;
610         unsigned long           flags;
611         unsigned long           chan_mask;
612         u32                     fcr;
613
614         macio = macio_find(node, 0);
615         if (!macio)
616                 return -ENODEV;
617         if (!strcmp(node->name, "ch-a"))
618                 chan_mask = MACIO_FLAG_SCCA_ON;
619         else if (!strcmp(node->name, "ch-b"))
620                 chan_mask = MACIO_FLAG_SCCB_ON;
621         else
622                 return -ENODEV;
623
624         if (value) {
625                 int need_reset_scc = 0;
626                 int need_reset_irda = 0;
627
628                 LOCK(flags);
629                 fcr = MACIO_IN32(KEYLARGO_FCR0);
630                 /* Check if scc cell need enabling */
631                 if (!(fcr & KL0_SCC_CELL_ENABLE)) {
632                         fcr |= KL0_SCC_CELL_ENABLE;
633                         need_reset_scc = 1;
634                 }
635                 if (chan_mask & MACIO_FLAG_SCCA_ON) {
636                         fcr |= KL0_SCCA_ENABLE;
637                         /* Don't enable line drivers for I2S modem */
638                         if ((param & 0xfff) == PMAC_SCC_I2S1)
639                                 fcr &= ~KL0_SCC_A_INTF_ENABLE;
640                         else
641                                 fcr |= KL0_SCC_A_INTF_ENABLE;
642                 }
643                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
644                         fcr |= KL0_SCCB_ENABLE;
645                         /* Perform irda specific inits */
646                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
647                                 fcr &= ~KL0_SCC_B_INTF_ENABLE;
648                                 fcr |= KL0_IRDA_ENABLE;
649                                 fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
650                                 fcr |= KL0_IRDA_SOURCE1_SEL;
651                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
652                                 fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
653                                 need_reset_irda = 1;
654                         } else
655                                 fcr |= KL0_SCC_B_INTF_ENABLE;
656                 }
657                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
658                 macio->flags |= chan_mask;
659                 if (need_reset_scc)  {
660                         MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
661                         (void)MACIO_IN32(KEYLARGO_FCR0);
662                         UNLOCK(flags);
663                         mdelay(15);
664                         LOCK(flags);
665                         MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
666                 }
667                 if (need_reset_irda)  {
668                         MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
669                         (void)MACIO_IN32(KEYLARGO_FCR0);
670                         UNLOCK(flags);
671                         mdelay(15);
672                         LOCK(flags);
673                         MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
674                 }
675                 UNLOCK(flags);
676                 if (param & PMAC_SCC_FLAG_XMON)
677                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
678         } else {
679                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
680                         return -EPERM;
681                 LOCK(flags);
682                 fcr = MACIO_IN32(KEYLARGO_FCR0);
683                 if (chan_mask & MACIO_FLAG_SCCA_ON)
684                         fcr &= ~KL0_SCCA_ENABLE;
685                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
686                         fcr &= ~KL0_SCCB_ENABLE;
687                         /* Perform irda specific clears */
688                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
689                                 fcr &= ~KL0_IRDA_ENABLE;
690                                 fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
691                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
692                                 fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
693                         }
694                 }
695                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
696                 if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
697                         fcr &= ~KL0_SCC_CELL_ENABLE;
698                         MACIO_OUT32(KEYLARGO_FCR0, fcr);
699                 }
700                 macio->flags &= ~(chan_mask);
701                 UNLOCK(flags);
702                 mdelay(10);
703         }
704         return 0;
705 }
706
707 static long
708 core99_modem_enable(struct device_node *node, long param, long value)
709 {
710         struct macio_chip*      macio;
711         u8                      gpio;
712         unsigned long           flags;
713
714         /* Hack for internal USB modem */
715         if (node == NULL) {
716                 if (macio_chips[0].type != macio_keylargo)
717                         return -ENODEV;
718                 node = macio_chips[0].of_node;
719         }
720         macio = macio_find(node, 0);
721         if (!macio)
722                 return -ENODEV;
723         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
724         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
725         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
726
727         if (!value) {
728                 LOCK(flags);
729                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
730                 UNLOCK(flags);
731                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
732                 mdelay(250);
733         }
734         LOCK(flags);
735         if (value) {
736                 MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
737                 UNLOCK(flags);
738                 (void)MACIO_IN32(KEYLARGO_FCR2);
739                 mdelay(250);
740         } else {
741                 MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
742                 UNLOCK(flags);
743         }
744         if (value) {
745                 LOCK(flags);
746                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
747                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
748                 UNLOCK(flags); mdelay(250); LOCK(flags);
749                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
750                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
751                 UNLOCK(flags); mdelay(250); LOCK(flags);
752                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
753                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
754                 UNLOCK(flags); mdelay(250);
755         }
756         return 0;
757 }
758
759 static long
760 pangea_modem_enable(struct device_node *node, long param, long value)
761 {
762         struct macio_chip*      macio;
763         u8                      gpio;
764         unsigned long           flags;
765
766         /* Hack for internal USB modem */
767         if (node == NULL) {
768                 if (macio_chips[0].type != macio_pangea &&
769                     macio_chips[0].type != macio_intrepid)
770                         return -ENODEV;
771                 node = macio_chips[0].of_node;
772         }
773         macio = macio_find(node, 0);
774         if (!macio)
775                 return -ENODEV;
776         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
777         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
778         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
779
780         if (!value) {
781                 LOCK(flags);
782                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
783                 UNLOCK(flags);
784                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
785                 mdelay(250);
786         }
787         LOCK(flags);
788         if (value) {
789                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
790                         KEYLARGO_GPIO_OUTPUT_ENABLE);
791                 UNLOCK(flags);
792                 (void)MACIO_IN32(KEYLARGO_FCR2);
793                 mdelay(250);
794         } else {
795                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
796                         KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
797                 UNLOCK(flags);
798         }
799         if (value) {
800                 LOCK(flags);
801                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
802                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
803                 UNLOCK(flags); mdelay(250); LOCK(flags);
804                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
805                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
806                 UNLOCK(flags); mdelay(250); LOCK(flags);
807                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
808                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
809                 UNLOCK(flags); mdelay(250);
810         }
811         return 0;
812 }
813
814 static long
815 core99_ata100_enable(struct device_node *node, long value)
816 {
817         unsigned long flags;
818         struct pci_dev *pdev = NULL;
819         u8 pbus, pid;
820
821         if (uninorth_rev < 0x24)
822                 return -ENODEV;
823
824         LOCK(flags);
825         if (value)
826                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
827         else
828                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
829         (void)UN_IN(UNI_N_CLOCK_CNTL);
830         UNLOCK(flags);
831         udelay(20);
832
833         if (value) {
834                 if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
835                         pdev = pci_find_slot(pbus, pid);
836                 if (pdev == NULL)
837                         return 0;
838                 pci_enable_device(pdev);
839                 pci_set_master(pdev);
840         }
841         return 0;
842 }
843
844 static long
845 core99_ide_enable(struct device_node *node, long param, long value)
846 {
847         /* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
848          * based ata-100
849          */
850         switch(param) {
851             case 0:
852                 return simple_feature_tweak(node, macio_unknown,
853                         KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
854             case 1:
855                 return simple_feature_tweak(node, macio_unknown,
856                         KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
857             case 2:
858                 return simple_feature_tweak(node, macio_unknown,
859                         KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
860             case 3:
861                 return core99_ata100_enable(node, value);
862             default:
863                 return -ENODEV;
864         }
865 }
866
867 static long
868 core99_ide_reset(struct device_node *node, long param, long value)
869 {
870         switch(param) {
871             case 0:
872                 return simple_feature_tweak(node, macio_unknown,
873                         KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
874             case 1:
875                 return simple_feature_tweak(node, macio_unknown,
876                         KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
877             case 2:
878                 return simple_feature_tweak(node, macio_unknown,
879                         KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
880             default:
881                 return -ENODEV;
882         }
883 }
884
885 static long
886 core99_gmac_enable(struct device_node *node, long param, long value)
887 {
888         unsigned long flags;
889
890         LOCK(flags);
891         if (value)
892                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
893         else
894                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
895         (void)UN_IN(UNI_N_CLOCK_CNTL);
896         UNLOCK(flags);
897         udelay(20);
898
899         return 0;
900 }
901
902 static long
903 core99_gmac_phy_reset(struct device_node *node, long param, long value)
904 {
905         unsigned long flags;
906         struct macio_chip *macio;
907
908         macio = &macio_chips[0];
909         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
910             macio->type != macio_intrepid)
911                 return -ENODEV;
912
913         LOCK(flags);
914         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
915         (void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
916         UNLOCK(flags);
917         mdelay(10);
918         LOCK(flags);
919         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
920                 KEYLARGO_GPIO_OUTOUT_DATA);
921         UNLOCK(flags);
922         mdelay(10);
923
924         return 0;
925 }
926
927 static long
928 core99_sound_chip_enable(struct device_node *node, long param, long value)
929 {
930         struct macio_chip*      macio;
931         unsigned long           flags;
932
933         macio = macio_find(node, 0);
934         if (!macio)
935                 return -ENODEV;
936
937         /* Do a better probe code, screamer G4 desktops &
938          * iMacs can do that too, add a recalibrate  in
939          * the driver as well
940          */
941         if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
942             pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
943                 LOCK(flags);
944                 if (value)
945                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
946                                 KEYLARGO_GPIO_OUTPUT_ENABLE |
947                                 KEYLARGO_GPIO_OUTOUT_DATA);
948                 else
949                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
950                                 KEYLARGO_GPIO_OUTPUT_ENABLE);
951                 (void)MACIO_IN8(KL_GPIO_SOUND_POWER);
952                 UNLOCK(flags);
953         }
954         return 0;
955 }
956
957 static long
958 core99_airport_enable(struct device_node *node, long param, long value)
959 {
960         struct macio_chip*      macio;
961         unsigned long           flags;
962         int                     state;
963
964         macio = macio_find(node, 0);
965         if (!macio)
966                 return -ENODEV;
967
968         /* Hint: we allow passing of macio itself for the sake of the
969          * sleep code
970          */
971         if (node != macio->of_node &&
972             (!node->parent || node->parent != macio->of_node))
973                 return -ENODEV;
974         state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
975         if (value == state)
976                 return 0;
977         if (value) {
978                 /* This code is a reproduction of OF enable-cardslot
979                  * and init-wireless methods, slightly hacked until
980                  * I got it working.
981                  */
982                 LOCK(flags);
983                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
984                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
985                 UNLOCK(flags);
986                 mdelay(10);
987                 LOCK(flags);
988                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
989                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
990                 UNLOCK(flags);
991
992                 mdelay(10);
993
994                 LOCK(flags);
995                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
996                 (void)MACIO_IN32(KEYLARGO_FCR2);
997                 udelay(10);
998                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
999                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
1000                 udelay(10);
1001                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
1002                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
1003                 udelay(10);
1004                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
1005                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
1006                 udelay(10);
1007                 MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
1008                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
1009                 udelay(10);
1010                 MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
1011                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
1012                 UNLOCK(flags);
1013                 udelay(10);
1014                 MACIO_OUT32(0x1c000, 0);
1015                 mdelay(1);
1016                 MACIO_OUT8(0x1a3e0, 0x41);
1017                 (void)MACIO_IN8(0x1a3e0);
1018                 udelay(10);
1019                 LOCK(flags);
1020                 MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
1021                 (void)MACIO_IN32(KEYLARGO_FCR2);
1022                 UNLOCK(flags);
1023                 mdelay(100);
1024
1025                 macio->flags |= MACIO_FLAG_AIRPORT_ON;
1026         } else {
1027                 LOCK(flags);
1028                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1029                 (void)MACIO_IN32(KEYLARGO_FCR2);
1030                 MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
1031                 MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
1032                 MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
1033                 MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
1034                 MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
1035                 (void)MACIO_IN8(KL_GPIO_AIRPORT_4);
1036                 UNLOCK(flags);
1037
1038                 macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
1039         }
1040         return 0;
1041 }
1042
1043 #ifdef CONFIG_SMP
1044 static long
1045 core99_reset_cpu(struct device_node *node, long param, long value)
1046 {
1047         unsigned int reset_io = 0;
1048         unsigned long flags;
1049         struct macio_chip *macio;
1050         struct device_node *np;
1051         const int dflt_reset_lines[] = {        KL_GPIO_RESET_CPU0,
1052                                                 KL_GPIO_RESET_CPU1,
1053                                                 KL_GPIO_RESET_CPU2,
1054                                                 KL_GPIO_RESET_CPU3 };
1055
1056         macio = &macio_chips[0];
1057         if (macio->type != macio_keylargo)
1058                 return -ENODEV;
1059
1060         np = find_path_device("/cpus");
1061         if (np == NULL)
1062                 return -ENODEV;
1063         for (np = np->child; np != NULL; np = np->sibling) {
1064                 u32 *num = (u32 *)get_property(np, "reg", NULL);
1065                 u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
1066                 if (num == NULL || rst == NULL)
1067                         continue;
1068                 if (param == *num) {
1069                         reset_io = *rst;
1070                         break;
1071                 }
1072         }
1073         if (np == NULL || reset_io == 0)
1074                 reset_io = dflt_reset_lines[param];
1075
1076         LOCK(flags);
1077         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1078         (void)MACIO_IN8(reset_io);
1079         udelay(1);
1080         MACIO_OUT8(reset_io, 0);
1081         (void)MACIO_IN8(reset_io);
1082         UNLOCK(flags);
1083
1084         return 0;
1085 }
1086 #endif /* CONFIG_SMP */
1087
1088 static long
1089 core99_usb_enable(struct device_node *node, long param, long value)
1090 {
1091         struct macio_chip *macio;
1092         unsigned long flags;
1093         char *prop;
1094         int number;
1095         u32 reg;
1096
1097         macio = &macio_chips[0];
1098         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1099             macio->type != macio_intrepid)
1100                 return -ENODEV;
1101
1102         prop = (char *)get_property(node, "AAPL,clock-id", NULL);
1103         if (!prop)
1104                 return -ENODEV;
1105         if (strncmp(prop, "usb0u048", 8) == 0)
1106                 number = 0;
1107         else if (strncmp(prop, "usb1u148", 8) == 0)
1108                 number = 2;
1109         else if (strncmp(prop, "usb2u248", 8) == 0)
1110                 number = 4;
1111         else
1112                 return -ENODEV;
1113
1114         /* Sorry for the brute-force locking, but this is only used during
1115          * sleep and the timing seem to be critical
1116          */
1117         LOCK(flags);
1118         if (value) {
1119                 /* Turn ON */
1120                 if (number == 0) {
1121                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1122                         (void)MACIO_IN32(KEYLARGO_FCR0);
1123                         UNLOCK(flags);
1124                         mdelay(1);
1125                         LOCK(flags);
1126                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1127                 } else if (number == 2) {
1128                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1129                         UNLOCK(flags);
1130                         (void)MACIO_IN32(KEYLARGO_FCR0);
1131                         mdelay(1);
1132                         LOCK(flags);
1133                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1134                 } else if (number == 4) {
1135                         MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1136                         UNLOCK(flags);
1137                         (void)MACIO_IN32(KEYLARGO_FCR1);
1138                         mdelay(1);
1139                         LOCK(flags);
1140                         MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
1141                 }
1142                 if (number < 4) {
1143                         reg = MACIO_IN32(KEYLARGO_FCR4);
1144                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1145                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
1146                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1147                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
1148                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1149                         (void)MACIO_IN32(KEYLARGO_FCR4);
1150                         udelay(10);
1151                 } else {
1152                         reg = MACIO_IN32(KEYLARGO_FCR3);
1153                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1154                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
1155                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1156                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
1157                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1158                         (void)MACIO_IN32(KEYLARGO_FCR3);
1159                         udelay(10);
1160                 }
1161                 if (macio->type == macio_intrepid) {
1162                         /* wait for clock stopped bits to clear */
1163                         u32 test0 = 0, test1 = 0;
1164                         u32 status0, status1;
1165                         int timeout = 1000;
1166
1167                         UNLOCK(flags);
1168                         switch (number) {
1169                         case 0:
1170                                 test0 = UNI_N_CLOCK_STOPPED_USB0;
1171                                 test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
1172                                 break;
1173                         case 2:
1174                                 test0 = UNI_N_CLOCK_STOPPED_USB1;
1175                                 test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
1176                                 break;
1177                         case 4:
1178                                 test0 = UNI_N_CLOCK_STOPPED_USB2;
1179                                 test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
1180                                 break;
1181                         }
1182                         do {
1183                                 if (--timeout <= 0) {
1184                                         printk(KERN_ERR "core99_usb_enable: "
1185                                                "Timeout waiting for clocks\n");
1186                                         break;
1187                                 }
1188                                 mdelay(1);
1189                                 status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
1190                                 status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
1191                         } while ((status0 & test0) | (status1 & test1));
1192                         LOCK(flags);
1193                 }
1194         } else {
1195                 /* Turn OFF */
1196                 if (number < 4) {
1197                         reg = MACIO_IN32(KEYLARGO_FCR4);
1198                         reg |=  KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1199                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
1200                         reg |=  KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1201                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
1202                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1203                         (void)MACIO_IN32(KEYLARGO_FCR4);
1204                         udelay(1);
1205                 } else {
1206                         reg = MACIO_IN32(KEYLARGO_FCR3);
1207                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1208                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
1209                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1210                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
1211                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1212                         (void)MACIO_IN32(KEYLARGO_FCR3);
1213                         udelay(1);
1214                 }
1215                 if (number == 0) {
1216                         if (macio->type != macio_intrepid)
1217                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1218                         (void)MACIO_IN32(KEYLARGO_FCR0);
1219                         udelay(1);
1220                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1221                         (void)MACIO_IN32(KEYLARGO_FCR0);
1222                 } else if (number == 2) {
1223                         if (macio->type != macio_intrepid)
1224                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1225                         (void)MACIO_IN32(KEYLARGO_FCR0);
1226                         udelay(1);
1227                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1228                         (void)MACIO_IN32(KEYLARGO_FCR0);
1229                 } else if (number == 4) {
1230                         udelay(1);
1231                         MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1232                         (void)MACIO_IN32(KEYLARGO_FCR1);
1233                 }
1234                 udelay(1);
1235         }
1236         UNLOCK(flags);
1237
1238         return 0;
1239 }
1240
1241 static long
1242 core99_firewire_enable(struct device_node *node, long param, long value)
1243 {
1244         unsigned long flags;
1245         struct macio_chip *macio;
1246
1247         macio = &macio_chips[0];
1248         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1249             macio->type != macio_intrepid)
1250                 return -ENODEV;
1251         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1252                 return -ENODEV;
1253
1254         LOCK(flags);
1255         if (value) {
1256                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1257                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1258         } else {
1259                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1260                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1261         }
1262         UNLOCK(flags);
1263         mdelay(1);
1264
1265         return 0;
1266 }
1267
1268 static long
1269 core99_firewire_cable_power(struct device_node *node, long param, long value)
1270 {
1271         unsigned long flags;
1272         struct macio_chip *macio;
1273
1274         /* Trick: we allow NULL node */
1275         if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
1276                 return -ENODEV;
1277         macio = &macio_chips[0];
1278         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1279             macio->type != macio_intrepid)
1280                 return -ENODEV;
1281         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1282                 return -ENODEV;
1283
1284         LOCK(flags);
1285         if (value) {
1286                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
1287                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
1288                 udelay(10);
1289         } else {
1290                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
1291                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
1292         }
1293         UNLOCK(flags);
1294         mdelay(1);
1295
1296         return 0;
1297 }
1298
1299 static long
1300 intrepid_aack_delay_enable(struct device_node *node, long param, long value)
1301 {
1302         unsigned long flags;
1303
1304         if (uninorth_rev < 0xd2)
1305                 return -ENODEV;
1306
1307         LOCK(flags);
1308         if (param)
1309                 UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1310         else
1311                 UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1312         UNLOCK(flags);
1313
1314         return 0;
1315 }
1316
1317
1318 #endif /* CONFIG_POWER4 */
1319
1320 static long
1321 core99_read_gpio(struct device_node *node, long param, long value)
1322 {
1323         struct macio_chip *macio = &macio_chips[0];
1324
1325         return MACIO_IN8(param);
1326 }
1327
1328
1329 static long
1330 core99_write_gpio(struct device_node *node, long param, long value)
1331 {
1332         struct macio_chip *macio = &macio_chips[0];
1333
1334         MACIO_OUT8(param, (u8)(value & 0xff));
1335         return 0;
1336 }
1337
1338 #ifdef CONFIG_POWER4
1339 static long g5_gmac_enable(struct device_node *node, long param, long value)
1340 {
1341         struct macio_chip *macio = &macio_chips[0];
1342         unsigned long flags;
1343
1344         if (node == NULL)
1345                 return -ENODEV;
1346
1347         LOCK(flags);
1348         if (value) {
1349                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1350                 mb();
1351                 k2_skiplist[0] = NULL;
1352         } else {
1353                 k2_skiplist[0] = node;
1354                 mb();
1355                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1356         }
1357         
1358         UNLOCK(flags);
1359         mdelay(1);
1360
1361         return 0;
1362 }
1363
1364 static long g5_fw_enable(struct device_node *node, long param, long value)
1365 {
1366         struct macio_chip *macio = &macio_chips[0];
1367         unsigned long flags;
1368
1369         if (node == NULL)
1370                 return -ENODEV;
1371
1372         LOCK(flags);
1373         if (value) {
1374                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1375                 mb();
1376                 k2_skiplist[1] = NULL;
1377         } else {
1378                 k2_skiplist[1] = node;
1379                 mb();
1380                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1381         }
1382         
1383         UNLOCK(flags);
1384         mdelay(1);
1385
1386         return 0;
1387 }
1388
1389 static long g5_mpic_enable(struct device_node *node, long param, long value)
1390 {
1391         unsigned long flags;
1392         struct device_node *parent = of_get_parent(node);
1393         int is_u3;
1394
1395         if (parent == NULL)
1396                 return 0;
1397         is_u3 = strcmp(parent->name, "u3") == 0 ||
1398                 strcmp(parent->name, "u4") == 0;
1399         of_node_put(parent);
1400         if (!is_u3)
1401                 return 0;
1402
1403         LOCK(flags);
1404         UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
1405         UNLOCK(flags);
1406
1407         return 0;
1408 }
1409
1410 static long g5_eth_phy_reset(struct device_node *node, long param, long value)
1411 {
1412         struct macio_chip *macio = &macio_chips[0];
1413         struct device_node *phy;
1414         int need_reset;
1415
1416         /*
1417          * We must not reset the combo PHYs, only the BCM5221 found in
1418          * the iMac G5.
1419          */
1420         phy = of_get_next_child(node, NULL);
1421         if (!phy)
1422                 return -ENODEV;
1423         need_reset = device_is_compatible(phy, "B5221");
1424         of_node_put(phy);
1425         if (!need_reset)
1426                 return 0;
1427
1428         /* PHY reset is GPIO 29, not in device-tree unfortunately */
1429         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
1430                    KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
1431         /* Thankfully, this is now always called at a time when we can
1432          * schedule by sungem.
1433          */
1434         msleep(10);
1435         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
1436
1437         return 0;
1438 }
1439
1440 static long g5_i2s_enable(struct device_node *node, long param, long value)
1441 {
1442         /* Very crude implementation for now */
1443         struct macio_chip *macio = &macio_chips[0];
1444         unsigned long flags;
1445         int cell;
1446         u32 fcrs[3][3] = {
1447                 { 0,
1448                   K2_FCR1_I2S0_CELL_ENABLE |
1449                   K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE,
1450                   KL3_I2S0_CLK18_ENABLE
1451                 },
1452                 { KL0_SCC_A_INTF_ENABLE,
1453                   K2_FCR1_I2S1_CELL_ENABLE |
1454                   K2_FCR1_I2S1_CLK_ENABLE_BIT | K2_FCR1_I2S1_ENABLE,
1455                   KL3_I2S1_CLK18_ENABLE
1456                 },
1457                 { KL0_SCC_B_INTF_ENABLE,
1458                   SH_FCR1_I2S2_CELL_ENABLE |
1459                   SH_FCR1_I2S2_CLK_ENABLE_BIT | SH_FCR1_I2S2_ENABLE,
1460                   SH_FCR3_I2S2_CLK18_ENABLE
1461                 },
1462         };
1463
1464         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1465                 return -ENODEV;
1466         if (strncmp(node->name, "i2s-", 4))
1467                 return -ENODEV;
1468         cell = node->name[4] - 'a';
1469         switch(cell) {
1470         case 0:
1471         case 1:
1472                 break;
1473         case 2:
1474                 if (macio->type == macio_shasta)
1475                         break;
1476         default:
1477                 return -ENODEV;
1478         }
1479
1480         LOCK(flags);
1481         if (value) {
1482                 MACIO_BIC(KEYLARGO_FCR0, fcrs[cell][0]);
1483                 MACIO_BIS(KEYLARGO_FCR1, fcrs[cell][1]);
1484                 MACIO_BIS(KEYLARGO_FCR3, fcrs[cell][2]);
1485         } else {
1486                 MACIO_BIC(KEYLARGO_FCR3, fcrs[cell][2]);
1487                 MACIO_BIC(KEYLARGO_FCR1, fcrs[cell][1]);
1488                 MACIO_BIS(KEYLARGO_FCR0, fcrs[cell][0]);
1489         }
1490         udelay(10);
1491         UNLOCK(flags);
1492
1493         return 0;
1494 }
1495
1496
1497 #ifdef CONFIG_SMP
1498 static long g5_reset_cpu(struct device_node *node, long param, long value)
1499 {
1500         unsigned int reset_io = 0;
1501         unsigned long flags;
1502         struct macio_chip *macio;
1503         struct device_node *np;
1504
1505         macio = &macio_chips[0];
1506         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1507                 return -ENODEV;
1508
1509         np = find_path_device("/cpus");
1510         if (np == NULL)
1511                 return -ENODEV;
1512         for (np = np->child; np != NULL; np = np->sibling) {
1513                 u32 *num = (u32 *)get_property(np, "reg", NULL);
1514                 u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
1515                 if (num == NULL || rst == NULL)
1516                         continue;
1517                 if (param == *num) {
1518                         reset_io = *rst;
1519                         break;
1520                 }
1521         }
1522         if (np == NULL || reset_io == 0)
1523                 return -ENODEV;
1524
1525         LOCK(flags);
1526         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1527         (void)MACIO_IN8(reset_io);
1528         udelay(1);
1529         MACIO_OUT8(reset_io, 0);
1530         (void)MACIO_IN8(reset_io);
1531         UNLOCK(flags);
1532
1533         return 0;
1534 }
1535 #endif /* CONFIG_SMP */
1536
1537 /*
1538  * This can be called from pmac_smp so isn't static
1539  *
1540  * This takes the second CPU off the bus on dual CPU machines
1541  * running UP
1542  */
1543 void g5_phy_disable_cpu1(void)
1544 {
1545         if (uninorth_maj == 3)
1546                 UN_OUT(U3_API_PHY_CONFIG_1, 0);
1547 }
1548 #endif /* CONFIG_POWER4 */
1549
1550 #ifndef CONFIG_POWER4
1551
1552
1553 #ifdef CONFIG_PM
1554
1555 static void keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
1556 {
1557         u32 temp;
1558
1559         if (sleep_mode) {
1560                 mdelay(1);
1561                 MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
1562                 (void)MACIO_IN32(KEYLARGO_FCR0);
1563                 mdelay(1);
1564         }
1565
1566         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1567                                 KL0_SCC_CELL_ENABLE |
1568                                 KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
1569                                 KL0_IRDA_CLK19_ENABLE);
1570
1571         MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
1572         MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
1573
1574         MACIO_BIC(KEYLARGO_FCR1,
1575                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1576                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1577                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1578                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1579                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1580                 KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
1581                 KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
1582                 KL1_UIDE_ENABLE);
1583
1584         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1585         MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
1586
1587         temp = MACIO_IN32(KEYLARGO_FCR3);
1588         if (macio->rev >= 2) {
1589                 temp |= KL3_SHUTDOWN_PLL2X;
1590                 if (sleep_mode)
1591                         temp |= KL3_SHUTDOWN_PLL_TOTAL;
1592         }
1593
1594         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1595                 KL3_SHUTDOWN_PLLKW35;
1596         if (sleep_mode)
1597                 temp |= KL3_SHUTDOWN_PLLKW12;
1598         temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
1599                 | KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1600         if (sleep_mode)
1601                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
1602         MACIO_OUT32(KEYLARGO_FCR3, temp);
1603
1604         /* Flush posted writes & wait a bit */
1605         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1606 }
1607
1608 static void pangea_shutdown(struct macio_chip *macio, int sleep_mode)
1609 {
1610         u32 temp;
1611
1612         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1613                                 KL0_SCC_CELL_ENABLE |
1614                                 KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
1615
1616         MACIO_BIC(KEYLARGO_FCR1,
1617                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1618                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1619                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1620                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1621                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1622                 KL1_UIDE_ENABLE);
1623         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1624                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1625
1626         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1627
1628         temp = MACIO_IN32(KEYLARGO_FCR3);
1629         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1630                 KL3_SHUTDOWN_PLLKW35;
1631         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
1632                 | KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
1633         if (sleep_mode)
1634                 temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
1635         MACIO_OUT32(KEYLARGO_FCR3, temp);
1636
1637         /* Flush posted writes & wait a bit */
1638         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1639 }
1640
1641 static void intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
1642 {
1643         u32 temp;
1644
1645         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1646                   KL0_SCC_CELL_ENABLE);
1647
1648         MACIO_BIC(KEYLARGO_FCR1,
1649                   /*KL1_USB2_CELL_ENABLE |*/
1650                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1651                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1652                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE);
1653         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1654                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1655
1656         temp = MACIO_IN32(KEYLARGO_FCR3);
1657         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
1658                   KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1659         if (sleep_mode)
1660                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
1661         MACIO_OUT32(KEYLARGO_FCR3, temp);
1662
1663         /* Flush posted writes & wait a bit */
1664         (void)MACIO_IN32(KEYLARGO_FCR0);
1665         mdelay(10);
1666 }
1667
1668
1669 static int
1670 core99_sleep(void)
1671 {
1672         struct macio_chip *macio;
1673         int i;
1674
1675         macio = &macio_chips[0];
1676         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1677             macio->type != macio_intrepid)
1678                 return -ENODEV;
1679
1680         /* We power off the wireless slot in case it was not done
1681          * by the driver. We don't power it on automatically however
1682          */
1683         if (macio->flags & MACIO_FLAG_AIRPORT_ON)
1684                 core99_airport_enable(macio->of_node, 0, 0);
1685
1686         /* We power off the FW cable. Should be done by the driver... */
1687         if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
1688                 core99_firewire_enable(NULL, 0, 0);
1689                 core99_firewire_cable_power(NULL, 0, 0);
1690         }
1691
1692         /* We make sure int. modem is off (in case driver lost it) */
1693         if (macio->type == macio_keylargo)
1694                 core99_modem_enable(macio->of_node, 0, 0);
1695         else
1696                 pangea_modem_enable(macio->of_node, 0, 0);
1697
1698         /* We make sure the sound is off as well */
1699         core99_sound_chip_enable(macio->of_node, 0, 0);
1700
1701         /*
1702          * Save various bits of KeyLargo
1703          */
1704
1705         /* Save the state of the various GPIOs */
1706         save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
1707         save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
1708         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1709                 save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
1710         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1711                 save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
1712
1713         /* Save the FCRs */
1714         if (macio->type == macio_keylargo)
1715                 save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
1716         save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
1717         save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
1718         save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
1719         save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
1720         save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
1721         if (macio->type == macio_pangea || macio->type == macio_intrepid)
1722                 save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
1723
1724         /* Save state & config of DBDMA channels */
1725         dbdma_save(macio, save_dbdma);
1726
1727         /*
1728          * Turn off as much as we can
1729          */
1730         if (macio->type == macio_pangea)
1731                 pangea_shutdown(macio, 1);
1732         else if (macio->type == macio_intrepid)
1733                 intrepid_shutdown(macio, 1);
1734         else if (macio->type == macio_keylargo)
1735                 keylargo_shutdown(macio, 1);
1736
1737         /*
1738          * Put the host bridge to sleep
1739          */
1740
1741         save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
1742         /* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
1743          * enabled !
1744          */
1745         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
1746                ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
1747         udelay(100);
1748         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1749         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
1750         mdelay(10);
1751
1752         /*
1753          * FIXME: A bit of black magic with OpenPIC (don't ask me why)
1754          */
1755         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1756                 MACIO_BIS(0x506e0, 0x00400000);
1757                 MACIO_BIS(0x506e0, 0x80000000);
1758         }
1759         return 0;
1760 }
1761
1762 static int
1763 core99_wake_up(void)
1764 {
1765         struct macio_chip *macio;
1766         int i;
1767
1768         macio = &macio_chips[0];
1769         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1770             macio->type != macio_intrepid)
1771                 return -ENODEV;
1772
1773         /*
1774          * Wakeup the host bridge
1775          */
1776         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1777         udelay(10);
1778         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1779         udelay(10);
1780
1781         /*
1782          * Restore KeyLargo
1783          */
1784
1785         if (macio->type == macio_keylargo) {
1786                 MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
1787                 (void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
1788         }
1789         MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
1790         (void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
1791         MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
1792         (void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
1793         MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
1794         (void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
1795         MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
1796         (void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
1797         MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
1798         (void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
1799         if (macio->type == macio_pangea || macio->type == macio_intrepid) {
1800                 MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
1801                 (void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
1802         }
1803
1804         dbdma_restore(macio, save_dbdma);
1805
1806         MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
1807         MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
1808         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1809                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
1810         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1811                 MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
1812
1813         /* FIXME more black magic with OpenPIC ... */
1814         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1815                 MACIO_BIC(0x506e0, 0x00400000);
1816                 MACIO_BIC(0x506e0, 0x80000000);
1817         }
1818
1819         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1820         udelay(100);
1821
1822         return 0;
1823 }
1824
1825 #endif /* CONFIG_PM */
1826
1827 static long
1828 core99_sleep_state(struct device_node *node, long param, long value)
1829 {
1830         /* Param == 1 means to enter the "fake sleep" mode that is
1831          * used for CPU speed switch
1832          */
1833         if (param == 1) {
1834                 if (value == 1) {
1835                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1836                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
1837                 } else {
1838                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1839                         udelay(10);
1840                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1841                         udelay(10);
1842                 }
1843                 return 0;
1844         }
1845         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
1846                 return -EPERM;
1847
1848 #ifdef CONFIG_PM
1849         if (value == 1)
1850                 return core99_sleep();
1851         else if (value == 0)
1852                 return core99_wake_up();
1853
1854 #endif /* CONFIG_PM */
1855         return 0;
1856 }
1857
1858 #endif /* CONFIG_POWER4 */
1859
1860 static long
1861 generic_dev_can_wake(struct device_node *node, long param, long value)
1862 {
1863         /* Todo: eventually check we are really dealing with on-board
1864          * video device ...
1865          */
1866
1867         if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
1868                 pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
1869         return 0;
1870 }
1871
1872 static long generic_get_mb_info(struct device_node *node, long param, long value)
1873 {
1874         switch(param) {
1875                 case PMAC_MB_INFO_MODEL:
1876                         return pmac_mb.model_id;
1877                 case PMAC_MB_INFO_FLAGS:
1878                         return pmac_mb.board_flags;
1879                 case PMAC_MB_INFO_NAME:
1880                         /* hack hack hack... but should work */
1881                         *((const char **)value) = pmac_mb.model_name;
1882                         return 0;
1883         }
1884         return -EINVAL;
1885 }
1886
1887
1888 /*
1889  * Table definitions
1890  */
1891
1892 /* Used on any machine
1893  */
1894 static struct feature_table_entry any_features[] = {
1895         { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
1896         { PMAC_FTR_DEVICE_CAN_WAKE,     generic_dev_can_wake },
1897         { 0, NULL }
1898 };
1899
1900 #ifndef CONFIG_POWER4
1901
1902 /* OHare based motherboards. Currently, we only use these on the
1903  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
1904  * to have issues with turning on/off those asic cells
1905  */
1906 static struct feature_table_entry ohare_features[] = {
1907         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1908         { PMAC_FTR_SWIM3_ENABLE,        ohare_floppy_enable },
1909         { PMAC_FTR_MESH_ENABLE,         ohare_mesh_enable },
1910         { PMAC_FTR_IDE_ENABLE,          ohare_ide_enable},
1911         { PMAC_FTR_IDE_RESET,           ohare_ide_reset},
1912         { PMAC_FTR_SLEEP_STATE,         ohare_sleep_state },
1913         { 0, NULL }
1914 };
1915
1916 /* Heathrow desktop machines (Beige G3).
1917  * Separated as some features couldn't be properly tested
1918  * and the serial port control bits appear to confuse it.
1919  */
1920 static struct feature_table_entry heathrow_desktop_features[] = {
1921         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1922         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1923         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1924         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1925         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1926         { 0, NULL }
1927 };
1928
1929 /* Heathrow based laptop, that is the Wallstreet and mainstreet
1930  * powerbooks.
1931  */
1932 static struct feature_table_entry heathrow_laptop_features[] = {
1933         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1934         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1935         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1936         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1937         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1938         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1939         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1940         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1941         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1942         { 0, NULL }
1943 };
1944
1945 /* Paddington based machines
1946  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
1947  */
1948 static struct feature_table_entry paddington_features[] = {
1949         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1950         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1951         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1952         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1953         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1954         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1955         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1956         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1957         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1958         { 0, NULL }
1959 };
1960
1961 /* Core99 & MacRISC 2 machines (all machines released since the
1962  * iBook (included), that is all AGP machines, except pangea
1963  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
1964  * used on iBook2 & iMac "flow power".
1965  */
1966 static struct feature_table_entry core99_features[] = {
1967         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1968         { PMAC_FTR_MODEM_ENABLE,        core99_modem_enable },
1969         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1970         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1971         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1972         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1973         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
1974         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
1975         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1976         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1977         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
1978 #ifdef CONFIG_PM
1979         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
1980 #endif
1981 #ifdef CONFIG_SMP
1982         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
1983 #endif /* CONFIG_SMP */
1984         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
1985         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
1986         { 0, NULL }
1987 };
1988
1989 /* RackMac
1990  */
1991 static struct feature_table_entry rackmac_features[] = {
1992         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1993         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1994         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1995         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1996         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1997         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1998         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1999         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2000         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2001 #ifdef CONFIG_SMP
2002         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
2003 #endif /* CONFIG_SMP */
2004         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2005         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2006         { 0, NULL }
2007 };
2008
2009 /* Pangea features
2010  */
2011 static struct feature_table_entry pangea_features[] = {
2012         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2013         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2014         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2015         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2016         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2017         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2018         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2019         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2020         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2021         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2022         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2023         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2024         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2025         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2026         { 0, NULL }
2027 };
2028
2029 /* Intrepid features
2030  */
2031 static struct feature_table_entry intrepid_features[] = {
2032         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2033         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2034         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2035         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2036         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2037         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2038         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2039         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2040         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2041         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2042         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2043         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2044         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2045         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2046         { PMAC_FTR_AACK_DELAY_ENABLE,   intrepid_aack_delay_enable },
2047         { 0, NULL }
2048 };
2049
2050 #else /* CONFIG_POWER4 */
2051
2052 /* G5 features
2053  */
2054 static struct feature_table_entry g5_features[] = {
2055         { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
2056         { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
2057         { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
2058         { PMAC_FTR_GMAC_PHY_RESET,      g5_eth_phy_reset },
2059         { PMAC_FTR_SOUND_CHIP_ENABLE,   g5_i2s_enable },
2060 #ifdef CONFIG_SMP
2061         { PMAC_FTR_RESET_CPU,           g5_reset_cpu },
2062 #endif /* CONFIG_SMP */
2063         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2064         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2065         { 0, NULL }
2066 };
2067
2068 #endif /* CONFIG_POWER4 */
2069
2070 static struct pmac_mb_def pmac_mb_defs[] = {
2071 #ifndef CONFIG_POWER4
2072         /*
2073          * Desktops
2074          */
2075
2076         {       "AAPL,8500",                    "PowerMac 8500/8600",
2077                 PMAC_TYPE_PSURGE,               NULL,
2078                 0
2079         },
2080         {       "AAPL,9500",                    "PowerMac 9500/9600",
2081                 PMAC_TYPE_PSURGE,               NULL,
2082                 0
2083         },
2084         {       "AAPL,7200",                    "PowerMac 7200",
2085                 PMAC_TYPE_PSURGE,               NULL,
2086                 0
2087         },
2088         {       "AAPL,7300",                    "PowerMac 7200/7300",
2089                 PMAC_TYPE_PSURGE,               NULL,
2090                 0
2091         },
2092         {       "AAPL,7500",                    "PowerMac 7500",
2093                 PMAC_TYPE_PSURGE,               NULL,
2094                 0
2095         },
2096         {       "AAPL,ShinerESB",               "Apple Network Server",
2097                 PMAC_TYPE_ANS,                  NULL,
2098                 0
2099         },
2100         {       "AAPL,e407",                    "Alchemy",
2101                 PMAC_TYPE_ALCHEMY,              NULL,
2102                 0
2103         },
2104         {       "AAPL,e411",                    "Gazelle",
2105                 PMAC_TYPE_GAZELLE,              NULL,
2106                 0
2107         },
2108         {       "AAPL,Gossamer",                "PowerMac G3 (Gossamer)",
2109                 PMAC_TYPE_GOSSAMER,             heathrow_desktop_features,
2110                 0
2111         },
2112         {       "AAPL,PowerMac G3",             "PowerMac G3 (Silk)",
2113                 PMAC_TYPE_SILK,                 heathrow_desktop_features,
2114                 0
2115         },
2116         {       "PowerMac1,1",                  "Blue&White G3",
2117                 PMAC_TYPE_YOSEMITE,             paddington_features,
2118                 0
2119         },
2120         {       "PowerMac1,2",                  "PowerMac G4 PCI Graphics",
2121                 PMAC_TYPE_YIKES,                paddington_features,
2122                 0
2123         },
2124         {       "PowerMac2,1",                  "iMac FireWire",
2125                 PMAC_TYPE_FW_IMAC,              core99_features,
2126                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2127         },
2128         {       "PowerMac2,2",                  "iMac FireWire",
2129                 PMAC_TYPE_FW_IMAC,              core99_features,
2130                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2131         },
2132         {       "PowerMac3,1",                  "PowerMac G4 AGP Graphics",
2133                 PMAC_TYPE_SAWTOOTH,             core99_features,
2134                 PMAC_MB_OLD_CORE99
2135         },
2136         {       "PowerMac3,2",                  "PowerMac G4 AGP Graphics",
2137                 PMAC_TYPE_SAWTOOTH,             core99_features,
2138                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2139         },
2140         {       "PowerMac3,3",                  "PowerMac G4 AGP Graphics",
2141                 PMAC_TYPE_SAWTOOTH,             core99_features,
2142                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2143         },
2144         {       "PowerMac3,4",                  "PowerMac G4 Silver",
2145                 PMAC_TYPE_QUICKSILVER,          core99_features,
2146                 PMAC_MB_MAY_SLEEP
2147         },
2148         {       "PowerMac3,5",                  "PowerMac G4 Silver",
2149                 PMAC_TYPE_QUICKSILVER,          core99_features,
2150                 PMAC_MB_MAY_SLEEP
2151         },
2152         {       "PowerMac3,6",                  "PowerMac G4 Windtunnel",
2153                 PMAC_TYPE_WINDTUNNEL,           core99_features,
2154                 PMAC_MB_MAY_SLEEP,
2155         },
2156         {       "PowerMac4,1",                  "iMac \"Flower Power\"",
2157                 PMAC_TYPE_PANGEA_IMAC,          pangea_features,
2158                 PMAC_MB_MAY_SLEEP
2159         },
2160         {       "PowerMac4,2",                  "Flat panel iMac",
2161                 PMAC_TYPE_FLAT_PANEL_IMAC,      pangea_features,
2162                 PMAC_MB_CAN_SLEEP
2163         },
2164         {       "PowerMac4,4",                  "eMac",
2165                 PMAC_TYPE_EMAC,                 core99_features,
2166                 PMAC_MB_MAY_SLEEP
2167         },
2168         {       "PowerMac5,1",                  "PowerMac G4 Cube",
2169                 PMAC_TYPE_CUBE,                 core99_features,
2170                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2171         },
2172         {       "PowerMac6,1",                  "Flat panel iMac",
2173                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2174                 PMAC_MB_MAY_SLEEP,
2175         },
2176         {       "PowerMac6,3",                  "Flat panel iMac",
2177                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2178                 PMAC_MB_MAY_SLEEP,
2179         },
2180         {       "PowerMac6,4",                  "eMac",
2181                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2182                 PMAC_MB_MAY_SLEEP,
2183         },
2184         {       "PowerMac10,1",                 "Mac mini",
2185                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2186                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER,
2187         },
2188         {       "iMac,1",                       "iMac (first generation)",
2189                 PMAC_TYPE_ORIG_IMAC,            paddington_features,
2190                 0
2191         },
2192
2193         /*
2194          * Xserve's
2195          */
2196
2197         {       "RackMac1,1",                   "XServe",
2198                 PMAC_TYPE_RACKMAC,              rackmac_features,
2199                 0,
2200         },
2201         {       "RackMac1,2",                   "XServe rev. 2",
2202                 PMAC_TYPE_RACKMAC,              rackmac_features,
2203                 0,
2204         },
2205
2206         /*
2207          * Laptops
2208          */
2209
2210         {       "AAPL,3400/2400",               "PowerBook 3400",
2211                 PMAC_TYPE_HOOPER,               ohare_features,
2212                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2213         },
2214         {       "AAPL,3500",                    "PowerBook 3500",
2215                 PMAC_TYPE_KANGA,                ohare_features,
2216                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2217         },
2218         {       "AAPL,PowerBook1998",           "PowerBook Wallstreet",
2219                 PMAC_TYPE_WALLSTREET,           heathrow_laptop_features,
2220                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2221         },
2222         {       "PowerBook1,1",                 "PowerBook 101 (Lombard)",
2223                 PMAC_TYPE_101_PBOOK,            paddington_features,
2224                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2225         },
2226         {       "PowerBook2,1",                 "iBook (first generation)",
2227                 PMAC_TYPE_ORIG_IBOOK,           core99_features,
2228                 PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2229         },
2230         {       "PowerBook2,2",                 "iBook FireWire",
2231                 PMAC_TYPE_FW_IBOOK,             core99_features,
2232                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2233                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2234         },
2235         {       "PowerBook3,1",                 "PowerBook Pismo",
2236                 PMAC_TYPE_PISMO,                core99_features,
2237                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2238                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2239         },
2240         {       "PowerBook3,2",                 "PowerBook Titanium",
2241                 PMAC_TYPE_TITANIUM,             core99_features,
2242                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2243         },
2244         {       "PowerBook3,3",                 "PowerBook Titanium II",
2245                 PMAC_TYPE_TITANIUM2,            core99_features,
2246                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2247         },
2248         {       "PowerBook3,4",                 "PowerBook Titanium III",
2249                 PMAC_TYPE_TITANIUM3,            core99_features,
2250                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2251         },
2252         {       "PowerBook3,5",                 "PowerBook Titanium IV",
2253                 PMAC_TYPE_TITANIUM4,            core99_features,
2254                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2255         },
2256         {       "PowerBook4,1",                 "iBook 2",
2257                 PMAC_TYPE_IBOOK2,               pangea_features,
2258                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2259         },
2260         {       "PowerBook4,2",                 "iBook 2",
2261                 PMAC_TYPE_IBOOK2,               pangea_features,
2262                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2263         },
2264         {       "PowerBook4,3",                 "iBook 2 rev. 2",
2265                 PMAC_TYPE_IBOOK2,               pangea_features,
2266                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2267         },
2268         {       "PowerBook5,1",                 "PowerBook G4 17\"",
2269                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2270                 PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2271         },
2272         {       "PowerBook5,2",                 "PowerBook G4 15\"",
2273                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2274                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2275         },
2276         {       "PowerBook5,3",                 "PowerBook G4 17\"",
2277                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2278                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2279         },
2280         {       "PowerBook5,4",                 "PowerBook G4 15\"",
2281                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2282                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2283         },
2284         {       "PowerBook5,5",                 "PowerBook G4 17\"",
2285                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2286                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2287         },
2288         {       "PowerBook5,6",                 "PowerBook G4 15\"",
2289                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2290                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2291         },
2292         {       "PowerBook5,7",                 "PowerBook G4 17\"",
2293                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2294                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2295         },
2296         {       "PowerBook5,8",                 "PowerBook G4 15\"",
2297                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2298                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2299         },
2300         {       "PowerBook5,9",                 "PowerBook G4 17\"",
2301                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2302                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2303         },
2304         {       "PowerBook6,1",                 "PowerBook G4 12\"",
2305                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2306                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2307         },
2308         {       "PowerBook6,2",                 "PowerBook G4",
2309                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2310                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2311         },
2312         {       "PowerBook6,3",                 "iBook G4",
2313                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2314                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2315         },
2316         {       "PowerBook6,4",                 "PowerBook G4 12\"",
2317                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2318                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2319         },
2320         {       "PowerBook6,5",                 "iBook G4",
2321                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2322                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2323         },
2324         {       "PowerBook6,7",                 "iBook G4",
2325                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2326                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2327         },
2328         {       "PowerBook6,8",                 "PowerBook G4 12\"",
2329                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2330                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2331         },
2332 #else /* CONFIG_POWER4 */
2333         {       "PowerMac7,2",                  "PowerMac G5",
2334                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2335                 0,
2336         },
2337 #ifdef CONFIG_PPC64
2338         {       "PowerMac7,3",                  "PowerMac G5",
2339                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2340                 0,
2341         },
2342         {       "PowerMac8,1",                  "iMac G5",
2343                 PMAC_TYPE_IMAC_G5,              g5_features,
2344                 0,
2345         },
2346         {       "PowerMac9,1",                  "PowerMac G5",
2347                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2348                 0,
2349         },
2350         {       "PowerMac11,2",                 "PowerMac G5 Dual Core",
2351                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2352                 0,
2353         },
2354         {       "PowerMac12,1",                 "iMac G5 (iSight)",
2355                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2356                 0,
2357         },
2358         {       "RackMac3,1",                   "XServe G5",
2359                 PMAC_TYPE_XSERVE_G5,            g5_features,
2360                 0,
2361         },
2362 #endif /* CONFIG_PPC64 */
2363 #endif /* CONFIG_POWER4 */
2364 };
2365
2366 /*
2367  * The toplevel feature_call callback
2368  */
2369 long pmac_do_feature_call(unsigned int selector, ...)
2370 {
2371         struct device_node *node;
2372         long param, value;
2373         int i;
2374         feature_call func = NULL;
2375         va_list args;
2376
2377         if (pmac_mb.features)
2378                 for (i=0; pmac_mb.features[i].function; i++)
2379                         if (pmac_mb.features[i].selector == selector) {
2380                                 func = pmac_mb.features[i].function;
2381                                 break;
2382                         }
2383         if (!func)
2384                 for (i=0; any_features[i].function; i++)
2385                         if (any_features[i].selector == selector) {
2386                                 func = any_features[i].function;
2387                                 break;
2388                         }
2389         if (!func)
2390                 return -ENODEV;
2391
2392         va_start(args, selector);
2393         node = (struct device_node*)va_arg(args, void*);
2394         param = va_arg(args, long);
2395         value = va_arg(args, long);
2396         va_end(args);
2397
2398         return func(node, param, value);
2399 }
2400
2401 static int __init probe_motherboard(void)
2402 {
2403         int i;
2404         struct macio_chip *macio = &macio_chips[0];
2405         const char *model = NULL;
2406         struct device_node *dt;
2407
2408         /* Lookup known motherboard type in device-tree. First try an
2409          * exact match on the "model" property, then try a "compatible"
2410          * match is none is found.
2411          */
2412         dt = find_devices("device-tree");
2413         if (dt != NULL)
2414                 model = (const char *) get_property(dt, "model", NULL);
2415         for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2416             if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
2417                 pmac_mb = pmac_mb_defs[i];
2418                 goto found;
2419             }
2420         }
2421         for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2422             if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
2423                 pmac_mb = pmac_mb_defs[i];
2424                 goto found;
2425             }
2426         }
2427
2428         /* Fallback to selection depending on mac-io chip type */
2429         switch(macio->type) {
2430 #ifndef CONFIG_POWER4
2431             case macio_grand_central:
2432                 pmac_mb.model_id = PMAC_TYPE_PSURGE;
2433                 pmac_mb.model_name = "Unknown PowerSurge";
2434                 break;
2435             case macio_ohare:
2436                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
2437                 pmac_mb.model_name = "Unknown OHare-based";
2438                 break;
2439             case macio_heathrow:
2440                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
2441                 pmac_mb.model_name = "Unknown Heathrow-based";
2442                 pmac_mb.features = heathrow_desktop_features;
2443                 break;
2444             case macio_paddington:
2445                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
2446                 pmac_mb.model_name = "Unknown Paddington-based";
2447                 pmac_mb.features = paddington_features;
2448                 break;
2449             case macio_keylargo:
2450                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
2451                 pmac_mb.model_name = "Unknown Keylargo-based";
2452                 pmac_mb.features = core99_features;
2453                 break;
2454             case macio_pangea:
2455                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
2456                 pmac_mb.model_name = "Unknown Pangea-based";
2457                 pmac_mb.features = pangea_features;
2458                 break;
2459             case macio_intrepid:
2460                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
2461                 pmac_mb.model_name = "Unknown Intrepid-based";
2462                 pmac_mb.features = intrepid_features;
2463                 break;
2464 #else /* CONFIG_POWER4 */
2465         case macio_keylargo2:
2466                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
2467                 pmac_mb.model_name = "Unknown K2-based";
2468                 pmac_mb.features = g5_features;
2469                 break;
2470         case macio_shasta:
2471                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
2472                 pmac_mb.model_name = "Unknown Shasta-based";
2473                 pmac_mb.features = g5_features;
2474                 break;
2475 #endif /* CONFIG_POWER4 */
2476         default:
2477                 return -ENODEV;
2478         }
2479 found:
2480 #ifndef CONFIG_POWER4
2481         /* Fixup Hooper vs. Comet */
2482         if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
2483                 u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
2484                 if (!mach_id_ptr)
2485                         return -ENODEV;
2486                 /* Here, I used to disable the media-bay on comet. It
2487                  * appears this is wrong, the floppy connector is actually
2488                  * a kind of media-bay and works with the current driver.
2489                  */
2490                 if (__raw_readl(mach_id_ptr) & 0x20000000UL)
2491                         pmac_mb.model_id = PMAC_TYPE_COMET;
2492                 iounmap(mach_id_ptr);
2493         }
2494 #endif /* CONFIG_POWER4 */
2495
2496 #ifdef CONFIG_6xx
2497         /* Set default value of powersave_nap on machines that support it.
2498          * It appears that uninorth rev 3 has a problem with it, we don't
2499          * enable it on those. In theory, the flush-on-lock property is
2500          * supposed to be set when not supported, but I'm not very confident
2501          * that all Apple OF revs did it properly, I do it the paranoid way.
2502          */
2503         while (uninorth_base && uninorth_rev > 3) {
2504                 struct device_node *np = find_path_device("/cpus");
2505                 if (!np || !np->child) {
2506                         printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
2507                         break;
2508                 }
2509                 np = np->child;
2510                 /* Nap mode not supported on SMP */
2511                 if (np->sibling)
2512                         break;
2513                 /* Nap mode not supported if flush-on-lock property is present */
2514                 if (get_property(np, "flush-on-lock", NULL))
2515                         break;
2516                 powersave_nap = 1;
2517                 printk(KERN_INFO "Processor NAP mode on idle enabled.\n");
2518                 break;
2519         }
2520
2521         /* On CPUs that support it (750FX), lowspeed by default during
2522          * NAP mode
2523          */
2524         powersave_lowspeed = 1;
2525 #endif /* CONFIG_6xx */
2526 #ifdef CONFIG_POWER4
2527         powersave_nap = 1;
2528 #endif
2529         /* Check for "mobile" machine */
2530         if (model && (strncmp(model, "PowerBook", 9) == 0
2531                    || strncmp(model, "iBook", 5) == 0))
2532                 pmac_mb.board_flags |= PMAC_MB_MOBILE;
2533
2534
2535         printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
2536         return 0;
2537 }
2538
2539 /* Initialize the Core99 UniNorth host bridge and memory controller
2540  */
2541 static void __init probe_uninorth(void)
2542 {
2543         u32 *addrp;
2544         phys_addr_t address;
2545         unsigned long actrl;
2546
2547         /* Locate core99 Uni-N */
2548         uninorth_node = of_find_node_by_name(NULL, "uni-n");
2549         /* Locate G5 u3 */
2550         if (uninorth_node == NULL) {
2551                 uninorth_node = of_find_node_by_name(NULL, "u3");
2552                 uninorth_maj = 3;
2553         }
2554         /* Locate G5 u4 */
2555         if (uninorth_node == NULL) {
2556                 uninorth_node = of_find_node_by_name(NULL, "u4");
2557                 uninorth_maj = 4;
2558         }
2559         if (uninorth_node == NULL)
2560                 return;
2561
2562         addrp = (u32 *)get_property(uninorth_node, "reg", NULL);
2563         if (addrp == NULL)
2564                 return;
2565         address = of_translate_address(uninorth_node, addrp);
2566         if (address == 0)
2567                 return;
2568         uninorth_base = ioremap(address, 0x40000);
2569         uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
2570         if (uninorth_maj == 3 || uninorth_maj == 4)
2571                 u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
2572
2573         printk(KERN_INFO "Found %s memory controller & host bridge"
2574                " @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
2575                uninorth_maj == 4 ? "U4" : "UniNorth",
2576                (unsigned int)address, uninorth_rev);
2577         printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
2578
2579         /* Set the arbitrer QAck delay according to what Apple does
2580          */
2581         if (uninorth_rev < 0x11) {
2582                 actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
2583                 actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
2584                         UNI_N_ARB_CTRL_QACK_DELAY) <<
2585                         UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
2586                 UN_OUT(UNI_N_ARB_CTRL, actrl);
2587         }
2588
2589         /* Some more magic as done by them in recent MacOS X on UniNorth
2590          * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
2591          * memory timeout
2592          */
2593         if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
2594             uninorth_rev == 0xc0)
2595                 UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
2596 }
2597
2598 static void __init probe_one_macio(const char *name, const char *compat, int type)
2599 {
2600         struct device_node*     node;
2601         int                     i;
2602         volatile u32 __iomem    *base;
2603         u32                     *addrp, *revp;
2604         phys_addr_t             addr;
2605         u64                     size;
2606
2607         for (node = NULL; (node = of_find_node_by_name(node, name)) != NULL;) {
2608                 if (!compat)
2609                         break;
2610                 if (device_is_compatible(node, compat))
2611                         break;
2612         }
2613         if (!node)
2614                 return;
2615         for(i=0; i<MAX_MACIO_CHIPS; i++) {
2616                 if (!macio_chips[i].of_node)
2617                         break;
2618                 if (macio_chips[i].of_node == node)
2619                         return;
2620         }
2621
2622         if (i >= MAX_MACIO_CHIPS) {
2623                 printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
2624                 printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
2625                 return;
2626         }
2627         addrp = of_get_pci_address(node, 0, &size, NULL);
2628         if (addrp == NULL) {
2629                 printk(KERN_ERR "pmac_feature: %s: can't find base !\n",
2630                        node->full_name);
2631                 return;
2632         }
2633         addr = of_translate_address(node, addrp);
2634         if (addr == 0) {
2635                 printk(KERN_ERR "pmac_feature: %s, can't translate base !\n",
2636                        node->full_name);
2637                 return;
2638         }
2639         base = ioremap(addr, (unsigned long)size);
2640         if (!base) {
2641                 printk(KERN_ERR "pmac_feature: %s, can't map mac-io chip !\n",
2642                        node->full_name);
2643                 return;
2644         }
2645         if (type == macio_keylargo || type == macio_keylargo2) {
2646                 u32 *did = (u32 *)get_property(node, "device-id", NULL);
2647                 if (*did == 0x00000025)
2648                         type = macio_pangea;
2649                 if (*did == 0x0000003e)
2650                         type = macio_intrepid;
2651                 if (*did == 0x0000004f)
2652                         type = macio_shasta;
2653         }
2654         macio_chips[i].of_node  = node;
2655         macio_chips[i].type     = type;
2656         macio_chips[i].base     = base;
2657         macio_chips[i].flags    = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
2658         macio_chips[i].name     = macio_names[type];
2659         revp = (u32 *)get_property(node, "revision-id", NULL);
2660         if (revp)
2661                 macio_chips[i].rev = *revp;
2662         printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
2663                 macio_names[type], macio_chips[i].rev, macio_chips[i].base);
2664 }
2665
2666 static int __init
2667 probe_macios(void)
2668 {
2669         /* Warning, ordering is important */
2670         probe_one_macio("gc", NULL, macio_grand_central);
2671         probe_one_macio("ohare", NULL, macio_ohare);
2672         probe_one_macio("pci106b,7", NULL, macio_ohareII);
2673         probe_one_macio("mac-io", "keylargo", macio_keylargo);
2674         probe_one_macio("mac-io", "paddington", macio_paddington);
2675         probe_one_macio("mac-io", "gatwick", macio_gatwick);
2676         probe_one_macio("mac-io", "heathrow", macio_heathrow);
2677         probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
2678
2679         /* Make sure the "main" macio chip appear first */
2680         if (macio_chips[0].type == macio_gatwick
2681             && macio_chips[1].type == macio_heathrow) {
2682                 struct macio_chip temp = macio_chips[0];
2683                 macio_chips[0] = macio_chips[1];
2684                 macio_chips[1] = temp;
2685         }
2686         if (macio_chips[0].type == macio_ohareII
2687             && macio_chips[1].type == macio_ohare) {
2688                 struct macio_chip temp = macio_chips[0];
2689                 macio_chips[0] = macio_chips[1];
2690                 macio_chips[1] = temp;
2691         }
2692         macio_chips[0].lbus.index = 0;
2693         macio_chips[1].lbus.index = 1;
2694
2695         return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
2696 }
2697
2698 static void __init
2699 initial_serial_shutdown(struct device_node *np)
2700 {
2701         int len;
2702         struct slot_names_prop {
2703                 int     count;
2704                 char    name[1];
2705         } *slots;
2706         char *conn;
2707         int port_type = PMAC_SCC_ASYNC;
2708         int modem = 0;
2709
2710         slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
2711         conn = get_property(np, "AAPL,connector", &len);
2712         if (conn && (strcmp(conn, "infrared") == 0))
2713                 port_type = PMAC_SCC_IRDA;
2714         else if (device_is_compatible(np, "cobalt"))
2715                 modem = 1;
2716         else if (slots && slots->count > 0) {
2717                 if (strcmp(slots->name, "IrDA") == 0)
2718                         port_type = PMAC_SCC_IRDA;
2719                 else if (strcmp(slots->name, "Modem") == 0)
2720                         modem = 1;
2721         }
2722         if (modem)
2723                 pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
2724         pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
2725 }
2726
2727 static void __init
2728 set_initial_features(void)
2729 {
2730         struct device_node *np;
2731
2732         /* That hack appears to be necessary for some StarMax motherboards
2733          * but I'm not too sure it was audited for side-effects on other
2734          * ohare based machines...
2735          * Since I still have difficulties figuring the right way to
2736          * differenciate them all and since that hack was there for a long
2737          * time, I'll keep it around
2738          */
2739         if (macio_chips[0].type == macio_ohare && !find_devices("via-pmu")) {
2740                 struct macio_chip *macio = &macio_chips[0];
2741                 MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
2742         } else if (macio_chips[0].type == macio_ohare) {
2743                 struct macio_chip *macio = &macio_chips[0];
2744                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2745         } else if (macio_chips[1].type == macio_ohare) {
2746                 struct macio_chip *macio = &macio_chips[1];
2747                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2748         }
2749
2750 #ifdef CONFIG_POWER4
2751         if (macio_chips[0].type == macio_keylargo2 ||
2752             macio_chips[0].type == macio_shasta) {
2753 #ifndef CONFIG_SMP
2754                 /* On SMP machines running UP, we have the second CPU eating
2755                  * bus cycles. We need to take it off the bus. This is done
2756                  * from pmac_smp for SMP kernels running on one CPU
2757                  */
2758                 np = of_find_node_by_type(NULL, "cpu");
2759                 if (np != NULL)
2760                         np = of_find_node_by_type(np, "cpu");
2761                 if (np != NULL) {
2762                         g5_phy_disable_cpu1();
2763                         of_node_put(np);
2764                 }
2765 #endif /* CONFIG_SMP */
2766                 /* Enable GMAC for now for PCI probing. It will be disabled
2767                  * later on after PCI probe
2768                  */
2769                 np = of_find_node_by_name(NULL, "ethernet");
2770                 while(np) {
2771                         if (device_is_compatible(np, "K2-GMAC"))
2772                                 g5_gmac_enable(np, 0, 1);
2773                         np = of_find_node_by_name(np, "ethernet");
2774                 }
2775
2776                 /* Enable FW before PCI probe. Will be disabled later on
2777                  * Note: We should have a batter way to check that we are
2778                  * dealing with uninorth internal cell and not a PCI cell
2779                  * on the external PCI. The code below works though.
2780                  */
2781                 np = of_find_node_by_name(NULL, "firewire");
2782                 while(np) {
2783                         if (device_is_compatible(np, "pci106b,5811")) {
2784                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2785                                 g5_fw_enable(np, 0, 1);
2786                         }
2787                         np = of_find_node_by_name(np, "firewire");
2788                 }
2789         }
2790 #else /* CONFIG_POWER4 */
2791
2792         if (macio_chips[0].type == macio_keylargo ||
2793             macio_chips[0].type == macio_pangea ||
2794             macio_chips[0].type == macio_intrepid) {
2795                 /* Enable GMAC for now for PCI probing. It will be disabled
2796                  * later on after PCI probe
2797                  */
2798                 np = of_find_node_by_name(NULL, "ethernet");
2799                 while(np) {
2800                         if (np->parent
2801                             && device_is_compatible(np->parent, "uni-north")
2802                             && device_is_compatible(np, "gmac"))
2803                                 core99_gmac_enable(np, 0, 1);
2804                         np = of_find_node_by_name(np, "ethernet");
2805                 }
2806
2807                 /* Enable FW before PCI probe. Will be disabled later on
2808                  * Note: We should have a batter way to check that we are
2809                  * dealing with uninorth internal cell and not a PCI cell
2810                  * on the external PCI. The code below works though.
2811                  */
2812                 np = of_find_node_by_name(NULL, "firewire");
2813                 while(np) {
2814                         if (np->parent
2815                             && device_is_compatible(np->parent, "uni-north")
2816                             && (device_is_compatible(np, "pci106b,18") ||
2817                                 device_is_compatible(np, "pci106b,30") ||
2818                                 device_is_compatible(np, "pci11c1,5811"))) {
2819                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2820                                 core99_firewire_enable(np, 0, 1);
2821                         }
2822                         np = of_find_node_by_name(np, "firewire");
2823                 }
2824
2825                 /* Enable ATA-100 before PCI probe. */
2826                 np = of_find_node_by_name(NULL, "ata-6");
2827                 while(np) {
2828                         if (np->parent
2829                             && device_is_compatible(np->parent, "uni-north")
2830                             && device_is_compatible(np, "kauai-ata")) {
2831                                 core99_ata100_enable(np, 1);
2832                         }
2833                         np = of_find_node_by_name(np, "ata-6");
2834                 }
2835
2836                 /* Switch airport off */
2837                 np = find_devices("radio");
2838                 while(np) {
2839                         if (np && np->parent == macio_chips[0].of_node) {
2840                                 macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
2841                                 core99_airport_enable(np, 0, 0);
2842                         }
2843                         np = np->next;
2844                 }
2845         }
2846
2847         /* On all machines that support sound PM, switch sound off */
2848         if (macio_chips[0].of_node)
2849                 pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
2850                         macio_chips[0].of_node, 0, 0);
2851
2852         /* While on some desktop G3s, we turn it back on */
2853         if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
2854                 && (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
2855                     pmac_mb.model_id == PMAC_TYPE_SILK)) {
2856                 struct macio_chip *macio = &macio_chips[0];
2857                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
2858                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2859         }
2860
2861 #endif /* CONFIG_POWER4 */
2862
2863         /* On all machines, switch modem & serial ports off */
2864         np = find_devices("ch-a");
2865         while(np) {
2866                 initial_serial_shutdown(np);
2867                 np = np->next;
2868         }
2869         np = find_devices("ch-b");
2870         while(np) {
2871                 initial_serial_shutdown(np);
2872                 np = np->next;
2873         }
2874 }
2875
2876 void __init
2877 pmac_feature_init(void)
2878 {
2879         /* Detect the UniNorth memory controller */
2880         probe_uninorth();
2881
2882         /* Probe mac-io controllers */
2883         if (probe_macios()) {
2884                 printk(KERN_WARNING "No mac-io chip found\n");
2885                 return;
2886         }
2887
2888         /* Probe machine type */
2889         if (probe_motherboard())
2890                 printk(KERN_WARNING "Unknown PowerMac !\n");
2891
2892         /* Set some initial features (turn off some chips that will
2893          * be later turned on)
2894          */
2895         set_initial_features();
2896 }
2897
2898 #if 0
2899 static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2900 {
2901         int     freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
2902         int     bits[8] = { 8,16,0,32,2,4,0,0 };
2903         int     freq = (frq >> 8) & 0xf;
2904
2905         if (freqs[freq] == 0)
2906                 printk("%s: Unknown HT link frequency %x\n", name, freq);
2907         else
2908                 printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
2909                        name, freqs[freq],
2910                        bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
2911 }
2912
2913 void __init pmac_check_ht_link(void)
2914 {
2915         u32     ufreq, freq, ucfg, cfg;
2916         struct device_node *pcix_node;
2917         u8      px_bus, px_devfn;
2918         struct pci_controller *px_hose;
2919
2920         (void)in_be32(u3_ht_base + U3_HT_LINK_COMMAND);
2921         ucfg = cfg = in_be32(u3_ht_base + U3_HT_LINK_CONFIG);
2922         ufreq = freq = in_be32(u3_ht_base + U3_HT_LINK_FREQ);
2923         dump_HT_speeds("U3 HyperTransport", cfg, freq);
2924
2925         pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
2926         if (pcix_node == NULL) {
2927                 printk("No PCI-X bridge found\n");
2928                 return;
2929         }
2930         if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
2931                 printk("PCI-X bridge found but not matched to pci\n");
2932                 return;
2933         }
2934         px_hose = pci_find_hose_for_OF_device(pcix_node);
2935         if (px_hose == NULL) {
2936                 printk("PCI-X bridge found but not matched to host\n");
2937                 return;
2938         }       
2939         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
2940         early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
2941         dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
2942         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2943         early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2944         dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2945 }
2946 #endif /* 0 */
2947
2948 /*
2949  * Early video resume hook
2950  */
2951
2952 static void (*pmac_early_vresume_proc)(void *data);
2953 static void *pmac_early_vresume_data;
2954
2955 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
2956 {
2957         if (_machine != _MACH_Pmac)
2958                 return;
2959         preempt_disable();
2960         pmac_early_vresume_proc = proc;
2961         pmac_early_vresume_data = data;
2962         preempt_enable();
2963 }
2964 EXPORT_SYMBOL(pmac_set_early_video_resume);
2965
2966 void pmac_call_early_video_resume(void)
2967 {
2968         if (pmac_early_vresume_proc)
2969                 pmac_early_vresume_proc(pmac_early_vresume_data);
2970 }
2971
2972 /*
2973  * AGP related suspend/resume code
2974  */
2975
2976 static struct pci_dev *pmac_agp_bridge;
2977 static int (*pmac_agp_suspend)(struct pci_dev *bridge);
2978 static int (*pmac_agp_resume)(struct pci_dev *bridge);
2979
2980 void pmac_register_agp_pm(struct pci_dev *bridge,
2981                                  int (*suspend)(struct pci_dev *bridge),
2982                                  int (*resume)(struct pci_dev *bridge))
2983 {
2984         if (suspend || resume) {
2985                 pmac_agp_bridge = bridge;
2986                 pmac_agp_suspend = suspend;
2987                 pmac_agp_resume = resume;
2988                 return;
2989         }
2990         if (bridge != pmac_agp_bridge)
2991                 return;
2992         pmac_agp_suspend = pmac_agp_resume = NULL;
2993         return;
2994 }
2995 EXPORT_SYMBOL(pmac_register_agp_pm);
2996
2997 void pmac_suspend_agp_for_card(struct pci_dev *dev)
2998 {
2999         if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
3000                 return;
3001         if (pmac_agp_bridge->bus != dev->bus)
3002                 return;
3003         pmac_agp_suspend(pmac_agp_bridge);
3004 }
3005 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
3006
3007 void pmac_resume_agp_for_card(struct pci_dev *dev)
3008 {
3009         if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
3010                 return;
3011         if (pmac_agp_bridge->bus != dev->bus)
3012                 return;
3013         pmac_agp_resume(pmac_agp_bridge);
3014 }
3015 EXPORT_SYMBOL(pmac_resume_agp_for_card);