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TOMOYO Linux Cross Reference
Linux/arch/powerpc/platforms/powermac/feature.c

Version: ~ [ linux-4.20-rc6 ] ~ [ linux-4.19.8 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.87 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.144 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.166 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.128 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.61 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.31.14 ] ~ [ linux-2.6.30.10 ] ~ [ linux-2.6.29.6 ] ~ [ linux-2.6.28.10 ] ~ [ linux-2.6.27.62 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *  Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
  3  *                          Ben. Herrenschmidt (benh@kernel.crashing.org)
  4  *
  5  *  This program is free software; you can redistribute it and/or
  6  *  modify it under the terms of the GNU General Public License
  7  *  as published by the Free Software Foundation; either version
  8  *  2 of the License, or (at your option) any later version.
  9  *
 10  *  TODO:
 11  *
 12  *   - Replace mdelay with some schedule loop if possible
 13  *   - Shorten some obfuscated delays on some routines (like modem
 14  *     power)
 15  *   - Refcount some clocks (see darwin)
 16  *   - Split split split...
 17  *
 18  */
 19 #include <linux/types.h>
 20 #include <linux/init.h>
 21 #include <linux/delay.h>
 22 #include <linux/kernel.h>
 23 #include <linux/sched.h>
 24 #include <linux/of.h>
 25 #include <linux/of_address.h>
 26 #include <linux/spinlock.h>
 27 #include <linux/adb.h>
 28 #include <linux/pmu.h>
 29 #include <linux/ioport.h>
 30 #include <linux/export.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_RAW_SPINLOCK(feature_lock);
 66 
 67 #define LOCK(flags)     raw_spin_lock_irqsave(&feature_lock, flags);
 68 #define UNLOCK(flags)   raw_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_PPC64
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 transceiver 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 being 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 struct dbdma_regs save_dbdma[13];
493 static struct dbdma_regs save_alt_dbdma[13];
494 
495 static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
496 {
497         int i;
498 
499         /* Save state & config of DBDMA channels */
500         for (i = 0; i < 13; i++) {
501                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
502                         (macio->base + ((0x8000+i*0x100)>>2));
503                 save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
504                 save[i].cmdptr = in_le32(&chan->cmdptr);
505                 save[i].intr_sel = in_le32(&chan->intr_sel);
506                 save[i].br_sel = in_le32(&chan->br_sel);
507                 save[i].wait_sel = in_le32(&chan->wait_sel);
508         }
509 }
510 
511 static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
512 {
513         int i;
514 
515         /* Save state & config of DBDMA channels */
516         for (i = 0; i < 13; i++) {
517                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
518                         (macio->base + ((0x8000+i*0x100)>>2));
519                 out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
520                 while (in_le32(&chan->status) & ACTIVE)
521                         mb();
522                 out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
523                 out_le32(&chan->cmdptr, save[i].cmdptr);
524                 out_le32(&chan->intr_sel, save[i].intr_sel);
525                 out_le32(&chan->br_sel, save[i].br_sel);
526                 out_le32(&chan->wait_sel, save[i].wait_sel);
527         }
528 }
529 
530 static void heathrow_sleep(struct macio_chip *macio, int secondary)
531 {
532         if (secondary) {
533                 dbdma_save(macio, save_alt_dbdma);
534                 save_fcr[2] = MACIO_IN32(0x38);
535                 save_fcr[3] = MACIO_IN32(0x3c);
536         } else {
537                 dbdma_save(macio, save_dbdma);
538                 save_fcr[0] = MACIO_IN32(0x38);
539                 save_fcr[1] = MACIO_IN32(0x3c);
540                 save_mbcr = MACIO_IN32(0x34);
541                 /* Make sure sound is shut down */
542                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
543                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
544                 /* This seems to be necessary as well or the fan
545                  * keeps coming up and battery drains fast */
546                 MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
547                 MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
548                 /* Make sure eth is down even if module or sleep
549                  * won't work properly */
550                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
551         }
552         /* Make sure modem is shut down */
553         MACIO_OUT8(HRW_GPIO_MODEM_RESET,
554                 MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
555         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
556         MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
557 
558         /* Let things settle */
559         (void)MACIO_IN32(HEATHROW_FCR);
560 }
561 
562 static void heathrow_wakeup(struct macio_chip *macio, int secondary)
563 {
564         if (secondary) {
565                 MACIO_OUT32(0x38, save_fcr[2]);
566                 (void)MACIO_IN32(0x38);
567                 mdelay(1);
568                 MACIO_OUT32(0x3c, save_fcr[3]);
569                 (void)MACIO_IN32(0x38);
570                 mdelay(10);
571                 dbdma_restore(macio, save_alt_dbdma);
572         } else {
573                 MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
574                 (void)MACIO_IN32(0x38);
575                 mdelay(1);
576                 MACIO_OUT32(0x3c, save_fcr[1]);
577                 (void)MACIO_IN32(0x38);
578                 mdelay(1);
579                 MACIO_OUT32(0x34, save_mbcr);
580                 (void)MACIO_IN32(0x38);
581                 mdelay(10);
582                 dbdma_restore(macio, save_dbdma);
583         }
584 }
585 
586 static long heathrow_sleep_state(struct device_node *node, long param,
587                                  long value)
588 {
589         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
590                 return -EPERM;
591         if (value == 1) {
592                 if (macio_chips[1].type == macio_gatwick)
593                         heathrow_sleep(&macio_chips[0], 1);
594                 heathrow_sleep(&macio_chips[0], 0);
595         } else if (value == 0) {
596                 heathrow_wakeup(&macio_chips[0], 0);
597                 if (macio_chips[1].type == macio_gatwick)
598                         heathrow_wakeup(&macio_chips[0], 1);
599         }
600         return 0;
601 }
602 
603 static long core99_scc_enable(struct device_node *node, long param, long value)
604 {
605         struct macio_chip*      macio;
606         unsigned long           flags;
607         unsigned long           chan_mask;
608         u32                     fcr;
609 
610         macio = macio_find(node, 0);
611         if (!macio)
612                 return -ENODEV;
613         if (!strcmp(node->name, "ch-a"))
614                 chan_mask = MACIO_FLAG_SCCA_ON;
615         else if (!strcmp(node->name, "ch-b"))
616                 chan_mask = MACIO_FLAG_SCCB_ON;
617         else
618                 return -ENODEV;
619 
620         if (value) {
621                 int need_reset_scc = 0;
622                 int need_reset_irda = 0;
623 
624                 LOCK(flags);
625                 fcr = MACIO_IN32(KEYLARGO_FCR0);
626                 /* Check if scc cell need enabling */
627                 if (!(fcr & KL0_SCC_CELL_ENABLE)) {
628                         fcr |= KL0_SCC_CELL_ENABLE;
629                         need_reset_scc = 1;
630                 }
631                 if (chan_mask & MACIO_FLAG_SCCA_ON) {
632                         fcr |= KL0_SCCA_ENABLE;
633                         /* Don't enable line drivers for I2S modem */
634                         if ((param & 0xfff) == PMAC_SCC_I2S1)
635                                 fcr &= ~KL0_SCC_A_INTF_ENABLE;
636                         else
637                                 fcr |= KL0_SCC_A_INTF_ENABLE;
638                 }
639                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
640                         fcr |= KL0_SCCB_ENABLE;
641                         /* Perform irda specific inits */
642                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
643                                 fcr &= ~KL0_SCC_B_INTF_ENABLE;
644                                 fcr |= KL0_IRDA_ENABLE;
645                                 fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
646                                 fcr |= KL0_IRDA_SOURCE1_SEL;
647                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
648                                 fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
649                                 need_reset_irda = 1;
650                         } else
651                                 fcr |= KL0_SCC_B_INTF_ENABLE;
652                 }
653                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
654                 macio->flags |= chan_mask;
655                 if (need_reset_scc)  {
656                         MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
657                         (void)MACIO_IN32(KEYLARGO_FCR0);
658                         UNLOCK(flags);
659                         mdelay(15);
660                         LOCK(flags);
661                         MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
662                 }
663                 if (need_reset_irda)  {
664                         MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
665                         (void)MACIO_IN32(KEYLARGO_FCR0);
666                         UNLOCK(flags);
667                         mdelay(15);
668                         LOCK(flags);
669                         MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
670                 }
671                 UNLOCK(flags);
672                 if (param & PMAC_SCC_FLAG_XMON)
673                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
674         } else {
675                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
676                         return -EPERM;
677                 LOCK(flags);
678                 fcr = MACIO_IN32(KEYLARGO_FCR0);
679                 if (chan_mask & MACIO_FLAG_SCCA_ON)
680                         fcr &= ~KL0_SCCA_ENABLE;
681                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
682                         fcr &= ~KL0_SCCB_ENABLE;
683                         /* Perform irda specific clears */
684                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
685                                 fcr &= ~KL0_IRDA_ENABLE;
686                                 fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
687                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
688                                 fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
689                         }
690                 }
691                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
692                 if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
693                         fcr &= ~KL0_SCC_CELL_ENABLE;
694                         MACIO_OUT32(KEYLARGO_FCR0, fcr);
695                 }
696                 macio->flags &= ~(chan_mask);
697                 UNLOCK(flags);
698                 mdelay(10);
699         }
700         return 0;
701 }
702 
703 static long
704 core99_modem_enable(struct device_node *node, long param, long value)
705 {
706         struct macio_chip*      macio;
707         u8                      gpio;
708         unsigned long           flags;
709 
710         /* Hack for internal USB modem */
711         if (node == NULL) {
712                 if (macio_chips[0].type != macio_keylargo)
713                         return -ENODEV;
714                 node = macio_chips[0].of_node;
715         }
716         macio = macio_find(node, 0);
717         if (!macio)
718                 return -ENODEV;
719         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
720         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
721         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
722 
723         if (!value) {
724                 LOCK(flags);
725                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
726                 UNLOCK(flags);
727                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
728                 mdelay(250);
729         }
730         LOCK(flags);
731         if (value) {
732                 MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
733                 UNLOCK(flags);
734                 (void)MACIO_IN32(KEYLARGO_FCR2);
735                 mdelay(250);
736         } else {
737                 MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
738                 UNLOCK(flags);
739         }
740         if (value) {
741                 LOCK(flags);
742                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
743                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
744                 UNLOCK(flags); mdelay(250); LOCK(flags);
745                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
746                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
747                 UNLOCK(flags); mdelay(250); LOCK(flags);
748                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
749                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
750                 UNLOCK(flags); mdelay(250);
751         }
752         return 0;
753 }
754 
755 static long
756 pangea_modem_enable(struct device_node *node, long param, long value)
757 {
758         struct macio_chip*      macio;
759         u8                      gpio;
760         unsigned long           flags;
761 
762         /* Hack for internal USB modem */
763         if (node == NULL) {
764                 if (macio_chips[0].type != macio_pangea &&
765                     macio_chips[0].type != macio_intrepid)
766                         return -ENODEV;
767                 node = macio_chips[0].of_node;
768         }
769         macio = macio_find(node, 0);
770         if (!macio)
771                 return -ENODEV;
772         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
773         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
774         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
775 
776         if (!value) {
777                 LOCK(flags);
778                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
779                 UNLOCK(flags);
780                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
781                 mdelay(250);
782         }
783         LOCK(flags);
784         if (value) {
785                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
786                         KEYLARGO_GPIO_OUTPUT_ENABLE);
787                 UNLOCK(flags);
788                 (void)MACIO_IN32(KEYLARGO_FCR2);
789                 mdelay(250);
790         } else {
791                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
792                         KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
793                 UNLOCK(flags);
794         }
795         if (value) {
796                 LOCK(flags);
797                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
798                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
799                 UNLOCK(flags); mdelay(250); LOCK(flags);
800                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
801                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
802                 UNLOCK(flags); mdelay(250); LOCK(flags);
803                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
804                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
805                 UNLOCK(flags); mdelay(250);
806         }
807         return 0;
808 }
809 
810 static long
811 core99_ata100_enable(struct device_node *node, long value)
812 {
813         unsigned long flags;
814         struct pci_dev *pdev = NULL;
815         u8 pbus, pid;
816         int rc;
817 
818         if (uninorth_rev < 0x24)
819                 return -ENODEV;
820 
821         LOCK(flags);
822         if (value)
823                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
824         else
825                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
826         (void)UN_IN(UNI_N_CLOCK_CNTL);
827         UNLOCK(flags);
828         udelay(20);
829 
830         if (value) {
831                 if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
832                         pdev = pci_get_domain_bus_and_slot(0, pbus, pid);
833                 if (pdev == NULL)
834                         return 0;
835                 rc = pci_enable_device(pdev);
836                 if (rc == 0)
837                         pci_set_master(pdev);
838                 pci_dev_put(pdev);
839                 if (rc)
840                         return rc;
841         }
842         return 0;
843 }
844 
845 static long
846 core99_ide_enable(struct device_node *node, long param, long value)
847 {
848         /* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
849          * based ata-100
850          */
851         switch(param) {
852             case 0:
853                 return simple_feature_tweak(node, macio_unknown,
854                         KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
855             case 1:
856                 return simple_feature_tweak(node, macio_unknown,
857                         KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
858             case 2:
859                 return simple_feature_tweak(node, macio_unknown,
860                         KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
861             case 3:
862                 return core99_ata100_enable(node, value);
863             default:
864                 return -ENODEV;
865         }
866 }
867 
868 static long
869 core99_ide_reset(struct device_node *node, long param, long value)
870 {
871         switch(param) {
872             case 0:
873                 return simple_feature_tweak(node, macio_unknown,
874                         KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
875             case 1:
876                 return simple_feature_tweak(node, macio_unknown,
877                         KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
878             case 2:
879                 return simple_feature_tweak(node, macio_unknown,
880                         KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
881             default:
882                 return -ENODEV;
883         }
884 }
885 
886 static long
887 core99_gmac_enable(struct device_node *node, long param, long value)
888 {
889         unsigned long flags;
890 
891         LOCK(flags);
892         if (value)
893                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
894         else
895                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
896         (void)UN_IN(UNI_N_CLOCK_CNTL);
897         UNLOCK(flags);
898         udelay(20);
899 
900         return 0;
901 }
902 
903 static long
904 core99_gmac_phy_reset(struct device_node *node, long param, long value)
905 {
906         unsigned long flags;
907         struct macio_chip *macio;
908 
909         macio = &macio_chips[0];
910         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
911             macio->type != macio_intrepid)
912                 return -ENODEV;
913 
914         LOCK(flags);
915         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
916         (void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
917         UNLOCK(flags);
918         mdelay(10);
919         LOCK(flags);
920         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
921                 KEYLARGO_GPIO_OUTOUT_DATA);
922         UNLOCK(flags);
923         mdelay(10);
924 
925         return 0;
926 }
927 
928 static long
929 core99_sound_chip_enable(struct device_node *node, long param, long value)
930 {
931         struct macio_chip*      macio;
932         unsigned long           flags;
933 
934         macio = macio_find(node, 0);
935         if (!macio)
936                 return -ENODEV;
937 
938         /* Do a better probe code, screamer G4 desktops &
939          * iMacs can do that too, add a recalibrate  in
940          * the driver as well
941          */
942         if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
943             pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
944                 LOCK(flags);
945                 if (value)
946                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
947                                 KEYLARGO_GPIO_OUTPUT_ENABLE |
948                                 KEYLARGO_GPIO_OUTOUT_DATA);
949                 else
950                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
951                                 KEYLARGO_GPIO_OUTPUT_ENABLE);
952                 (void)MACIO_IN8(KL_GPIO_SOUND_POWER);
953                 UNLOCK(flags);
954         }
955         return 0;
956 }
957 
958 static long
959 core99_airport_enable(struct device_node *node, long param, long value)
960 {
961         struct macio_chip*      macio;
962         unsigned long           flags;
963         int                     state;
964 
965         macio = macio_find(node, 0);
966         if (!macio)
967                 return -ENODEV;
968 
969         /* Hint: we allow passing of macio itself for the sake of the
970          * sleep code
971          */
972         if (node != macio->of_node &&
973             (!node->parent || node->parent != macio->of_node))
974                 return -ENODEV;
975         state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
976         if (value == state)
977                 return 0;
978         if (value) {
979                 /* This code is a reproduction of OF enable-cardslot
980                  * and init-wireless methods, slightly hacked until
981                  * I got it working.
982                  */
983                 LOCK(flags);
984                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
985                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
986                 UNLOCK(flags);
987                 mdelay(10);
988                 LOCK(flags);
989                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
990                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
991                 UNLOCK(flags);
992 
993                 mdelay(10);
994 
995                 LOCK(flags);
996                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
997                 (void)MACIO_IN32(KEYLARGO_FCR2);
998                 udelay(10);
999                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
1000                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
1001                 udelay(10);
1002                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
1003                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
1004                 udelay(10);
1005                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
1006                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
1007                 udelay(10);
1008                 MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
1009                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
1010                 udelay(10);
1011                 MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
1012                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
1013                 UNLOCK(flags);
1014                 udelay(10);
1015                 MACIO_OUT32(0x1c000, 0);
1016                 mdelay(1);
1017                 MACIO_OUT8(0x1a3e0, 0x41);
1018                 (void)MACIO_IN8(0x1a3e0);
1019                 udelay(10);
1020                 LOCK(flags);
1021                 MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
1022                 (void)MACIO_IN32(KEYLARGO_FCR2);
1023                 UNLOCK(flags);
1024                 mdelay(100);
1025 
1026                 macio->flags |= MACIO_FLAG_AIRPORT_ON;
1027         } else {
1028                 LOCK(flags);
1029                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1030                 (void)MACIO_IN32(KEYLARGO_FCR2);
1031                 MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
1032                 MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
1033                 MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
1034                 MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
1035                 MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
1036                 (void)MACIO_IN8(KL_GPIO_AIRPORT_4);
1037                 UNLOCK(flags);
1038 
1039                 macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
1040         }
1041         return 0;
1042 }
1043 
1044 #ifdef CONFIG_SMP
1045 static long
1046 core99_reset_cpu(struct device_node *node, long param, long value)
1047 {
1048         unsigned int reset_io = 0;
1049         unsigned long flags;
1050         struct macio_chip *macio;
1051         struct device_node *np;
1052         const int dflt_reset_lines[] = {        KL_GPIO_RESET_CPU0,
1053                                                 KL_GPIO_RESET_CPU1,
1054                                                 KL_GPIO_RESET_CPU2,
1055                                                 KL_GPIO_RESET_CPU3 };
1056 
1057         macio = &macio_chips[0];
1058         if (macio->type != macio_keylargo)
1059                 return -ENODEV;
1060 
1061         for_each_of_cpu_node(np) {
1062                 const u32 *num = of_get_property(np, "reg", NULL);
1063                 const u32 *rst = of_get_property(np, "soft-reset", NULL);
1064                 if (num == NULL || rst == NULL)
1065                         continue;
1066                 if (param == *num) {
1067                         reset_io = *rst;
1068                         break;
1069                 }
1070         }
1071         if (np == NULL || reset_io == 0)
1072                 reset_io = dflt_reset_lines[param];
1073 
1074         LOCK(flags);
1075         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1076         (void)MACIO_IN8(reset_io);
1077         udelay(1);
1078         MACIO_OUT8(reset_io, 0);
1079         (void)MACIO_IN8(reset_io);
1080         UNLOCK(flags);
1081 
1082         return 0;
1083 }
1084 #endif /* CONFIG_SMP */
1085 
1086 static long
1087 core99_usb_enable(struct device_node *node, long param, long value)
1088 {
1089         struct macio_chip *macio;
1090         unsigned long flags;
1091         const char *prop;
1092         int number;
1093         u32 reg;
1094 
1095         macio = &macio_chips[0];
1096         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1097             macio->type != macio_intrepid)
1098                 return -ENODEV;
1099 
1100         prop = of_get_property(node, "AAPL,clock-id", NULL);
1101         if (!prop)
1102                 return -ENODEV;
1103         if (strncmp(prop, "usb0u048", 8) == 0)
1104                 number = 0;
1105         else if (strncmp(prop, "usb1u148", 8) == 0)
1106                 number = 2;
1107         else if (strncmp(prop, "usb2u248", 8) == 0)
1108                 number = 4;
1109         else
1110                 return -ENODEV;
1111 
1112         /* Sorry for the brute-force locking, but this is only used during
1113          * sleep and the timing seem to be critical
1114          */
1115         LOCK(flags);
1116         if (value) {
1117                 /* Turn ON */
1118                 if (number == 0) {
1119                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1120                         (void)MACIO_IN32(KEYLARGO_FCR0);
1121                         UNLOCK(flags);
1122                         mdelay(1);
1123                         LOCK(flags);
1124                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1125                 } else if (number == 2) {
1126                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1127                         UNLOCK(flags);
1128                         (void)MACIO_IN32(KEYLARGO_FCR0);
1129                         mdelay(1);
1130                         LOCK(flags);
1131                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1132                 } else if (number == 4) {
1133                         MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1134                         UNLOCK(flags);
1135                         (void)MACIO_IN32(KEYLARGO_FCR1);
1136                         mdelay(1);
1137                         LOCK(flags);
1138                         MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
1139                 }
1140                 if (number < 4) {
1141                         reg = MACIO_IN32(KEYLARGO_FCR4);
1142                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1143                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
1144                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1145                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
1146                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1147                         (void)MACIO_IN32(KEYLARGO_FCR4);
1148                         udelay(10);
1149                 } else {
1150                         reg = MACIO_IN32(KEYLARGO_FCR3);
1151                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1152                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
1153                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1154                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
1155                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1156                         (void)MACIO_IN32(KEYLARGO_FCR3);
1157                         udelay(10);
1158                 }
1159                 if (macio->type == macio_intrepid) {
1160                         /* wait for clock stopped bits to clear */
1161                         u32 test0 = 0, test1 = 0;
1162                         u32 status0, status1;
1163                         int timeout = 1000;
1164 
1165                         UNLOCK(flags);
1166                         switch (number) {
1167                         case 0:
1168                                 test0 = UNI_N_CLOCK_STOPPED_USB0;
1169                                 test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
1170                                 break;
1171                         case 2:
1172                                 test0 = UNI_N_CLOCK_STOPPED_USB1;
1173                                 test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
1174                                 break;
1175                         case 4:
1176                                 test0 = UNI_N_CLOCK_STOPPED_USB2;
1177                                 test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
1178                                 break;
1179                         }
1180                         do {
1181                                 if (--timeout <= 0) {
1182                                         printk(KERN_ERR "core99_usb_enable: "
1183                                                "Timeout waiting for clocks\n");
1184                                         break;
1185                                 }
1186                                 mdelay(1);
1187                                 status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
1188                                 status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
1189                         } while ((status0 & test0) | (status1 & test1));
1190                         LOCK(flags);
1191                 }
1192         } else {
1193                 /* Turn OFF */
1194                 if (number < 4) {
1195                         reg = MACIO_IN32(KEYLARGO_FCR4);
1196                         reg |=  KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1197                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
1198                         reg |=  KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1199                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
1200                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1201                         (void)MACIO_IN32(KEYLARGO_FCR4);
1202                         udelay(1);
1203                 } else {
1204                         reg = MACIO_IN32(KEYLARGO_FCR3);
1205                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1206                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
1207                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1208                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
1209                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1210                         (void)MACIO_IN32(KEYLARGO_FCR3);
1211                         udelay(1);
1212                 }
1213                 if (number == 0) {
1214                         if (macio->type != macio_intrepid)
1215                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1216                         (void)MACIO_IN32(KEYLARGO_FCR0);
1217                         udelay(1);
1218                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1219                         (void)MACIO_IN32(KEYLARGO_FCR0);
1220                 } else if (number == 2) {
1221                         if (macio->type != macio_intrepid)
1222                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1223                         (void)MACIO_IN32(KEYLARGO_FCR0);
1224                         udelay(1);
1225                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1226                         (void)MACIO_IN32(KEYLARGO_FCR0);
1227                 } else if (number == 4) {
1228                         udelay(1);
1229                         MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1230                         (void)MACIO_IN32(KEYLARGO_FCR1);
1231                 }
1232                 udelay(1);
1233         }
1234         UNLOCK(flags);
1235 
1236         return 0;
1237 }
1238 
1239 static long
1240 core99_firewire_enable(struct device_node *node, long param, long value)
1241 {
1242         unsigned long flags;
1243         struct macio_chip *macio;
1244 
1245         macio = &macio_chips[0];
1246         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1247             macio->type != macio_intrepid)
1248                 return -ENODEV;
1249         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1250                 return -ENODEV;
1251 
1252         LOCK(flags);
1253         if (value) {
1254                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1255                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1256         } else {
1257                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1258                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1259         }
1260         UNLOCK(flags);
1261         mdelay(1);
1262 
1263         return 0;
1264 }
1265 
1266 static long
1267 core99_firewire_cable_power(struct device_node *node, long param, long value)
1268 {
1269         unsigned long flags;
1270         struct macio_chip *macio;
1271 
1272         /* Trick: we allow NULL node */
1273         if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
1274                 return -ENODEV;
1275         macio = &macio_chips[0];
1276         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1277             macio->type != macio_intrepid)
1278                 return -ENODEV;
1279         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1280                 return -ENODEV;
1281 
1282         LOCK(flags);
1283         if (value) {
1284                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
1285                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
1286                 udelay(10);
1287         } else {
1288                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
1289                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
1290         }
1291         UNLOCK(flags);
1292         mdelay(1);
1293 
1294         return 0;
1295 }
1296 
1297 static long
1298 intrepid_aack_delay_enable(struct device_node *node, long param, long value)
1299 {
1300         unsigned long flags;
1301 
1302         if (uninorth_rev < 0xd2)
1303                 return -ENODEV;
1304 
1305         LOCK(flags);
1306         if (param)
1307                 UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1308         else
1309                 UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1310         UNLOCK(flags);
1311 
1312         return 0;
1313 }
1314 
1315 
1316 #endif /* CONFIG_PPC64 */
1317 
1318 static long
1319 core99_read_gpio(struct device_node *node, long param, long value)
1320 {
1321         struct macio_chip *macio = &macio_chips[0];
1322 
1323         return MACIO_IN8(param);
1324 }
1325 
1326 
1327 static long
1328 core99_write_gpio(struct device_node *node, long param, long value)
1329 {
1330         struct macio_chip *macio = &macio_chips[0];
1331 
1332         MACIO_OUT8(param, (u8)(value & 0xff));
1333         return 0;
1334 }
1335 
1336 #ifdef CONFIG_PPC64
1337 static long g5_gmac_enable(struct device_node *node, long param, long value)
1338 {
1339         struct macio_chip *macio = &macio_chips[0];
1340         unsigned long flags;
1341 
1342         if (node == NULL)
1343                 return -ENODEV;
1344 
1345         LOCK(flags);
1346         if (value) {
1347                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1348                 mb();
1349                 k2_skiplist[0] = NULL;
1350         } else {
1351                 k2_skiplist[0] = node;
1352                 mb();
1353                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1354         }
1355         
1356         UNLOCK(flags);
1357         mdelay(1);
1358 
1359         return 0;
1360 }
1361 
1362 static long g5_fw_enable(struct device_node *node, long param, long value)
1363 {
1364         struct macio_chip *macio = &macio_chips[0];
1365         unsigned long flags;
1366 
1367         if (node == NULL)
1368                 return -ENODEV;
1369 
1370         LOCK(flags);
1371         if (value) {
1372                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1373                 mb();
1374                 k2_skiplist[1] = NULL;
1375         } else {
1376                 k2_skiplist[1] = node;
1377                 mb();
1378                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1379         }
1380         
1381         UNLOCK(flags);
1382         mdelay(1);
1383 
1384         return 0;
1385 }
1386 
1387 static long g5_mpic_enable(struct device_node *node, long param, long value)
1388 {
1389         unsigned long flags;
1390         struct device_node *parent = of_get_parent(node);
1391         int is_u3;
1392 
1393         if (parent == NULL)
1394                 return 0;
1395         is_u3 = strcmp(parent->name, "u3") == 0 ||
1396                 strcmp(parent->name, "u4") == 0;
1397         of_node_put(parent);
1398         if (!is_u3)
1399                 return 0;
1400 
1401         LOCK(flags);
1402         UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
1403         UNLOCK(flags);
1404 
1405         return 0;
1406 }
1407 
1408 static long g5_eth_phy_reset(struct device_node *node, long param, long value)
1409 {
1410         struct macio_chip *macio = &macio_chips[0];
1411         struct device_node *phy;
1412         int need_reset;
1413 
1414         /*
1415          * We must not reset the combo PHYs, only the BCM5221 found in
1416          * the iMac G5.
1417          */
1418         phy = of_get_next_child(node, NULL);
1419         if (!phy)
1420                 return -ENODEV;
1421         need_reset = of_device_is_compatible(phy, "B5221");
1422         of_node_put(phy);
1423         if (!need_reset)
1424                 return 0;
1425 
1426         /* PHY reset is GPIO 29, not in device-tree unfortunately */
1427         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
1428                    KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
1429         /* Thankfully, this is now always called at a time when we can
1430          * schedule by sungem.
1431          */
1432         msleep(10);
1433         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
1434 
1435         return 0;
1436 }
1437 
1438 static long g5_i2s_enable(struct device_node *node, long param, long value)
1439 {
1440         /* Very crude implementation for now */
1441         struct macio_chip *macio = &macio_chips[0];
1442         unsigned long flags;
1443         int cell;
1444         u32 fcrs[3][3] = {
1445                 { 0,
1446                   K2_FCR1_I2S0_CELL_ENABLE |
1447                   K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE,
1448                   KL3_I2S0_CLK18_ENABLE
1449                 },
1450                 { KL0_SCC_A_INTF_ENABLE,
1451                   K2_FCR1_I2S1_CELL_ENABLE |
1452                   K2_FCR1_I2S1_CLK_ENABLE_BIT | K2_FCR1_I2S1_ENABLE,
1453                   KL3_I2S1_CLK18_ENABLE
1454                 },
1455                 { KL0_SCC_B_INTF_ENABLE,
1456                   SH_FCR1_I2S2_CELL_ENABLE |
1457                   SH_FCR1_I2S2_CLK_ENABLE_BIT | SH_FCR1_I2S2_ENABLE,
1458                   SH_FCR3_I2S2_CLK18_ENABLE
1459                 },
1460         };
1461 
1462         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1463                 return -ENODEV;
1464         if (strncmp(node->name, "i2s-", 4))
1465                 return -ENODEV;
1466         cell = node->name[4] - 'a';
1467         switch(cell) {
1468         case 0:
1469         case 1:
1470                 break;
1471         case 2:
1472                 if (macio->type == macio_shasta)
1473                         break;
1474         default:
1475                 return -ENODEV;
1476         }
1477 
1478         LOCK(flags);
1479         if (value) {
1480                 MACIO_BIC(KEYLARGO_FCR0, fcrs[cell][0]);
1481                 MACIO_BIS(KEYLARGO_FCR1, fcrs[cell][1]);
1482                 MACIO_BIS(KEYLARGO_FCR3, fcrs[cell][2]);
1483         } else {
1484                 MACIO_BIC(KEYLARGO_FCR3, fcrs[cell][2]);
1485                 MACIO_BIC(KEYLARGO_FCR1, fcrs[cell][1]);
1486                 MACIO_BIS(KEYLARGO_FCR0, fcrs[cell][0]);
1487         }
1488         udelay(10);
1489         UNLOCK(flags);
1490 
1491         return 0;
1492 }
1493 
1494 
1495 #ifdef CONFIG_SMP
1496 static long g5_reset_cpu(struct device_node *node, long param, long value)
1497 {
1498         unsigned int reset_io = 0;
1499         unsigned long flags;
1500         struct macio_chip *macio;
1501         struct device_node *np;
1502 
1503         macio = &macio_chips[0];
1504         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1505                 return -ENODEV;
1506 
1507         for_each_of_cpu_node(np) {
1508                 const u32 *num = of_get_property(np, "reg", NULL);
1509                 const u32 *rst = of_get_property(np, "soft-reset", NULL);
1510                 if (num == NULL || rst == NULL)
1511                         continue;
1512                 if (param == *num) {
1513                         reset_io = *rst;
1514                         break;
1515                 }
1516         }
1517         if (np == NULL || reset_io == 0)
1518                 return -ENODEV;
1519 
1520         LOCK(flags);
1521         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1522         (void)MACIO_IN8(reset_io);
1523         udelay(1);
1524         MACIO_OUT8(reset_io, 0);
1525         (void)MACIO_IN8(reset_io);
1526         UNLOCK(flags);
1527 
1528         return 0;
1529 }
1530 #endif /* CONFIG_SMP */
1531 
1532 /*
1533  * This can be called from pmac_smp so isn't static
1534  *
1535  * This takes the second CPU off the bus on dual CPU machines
1536  * running UP
1537  */
1538 void g5_phy_disable_cpu1(void)
1539 {
1540         if (uninorth_maj == 3)
1541                 UN_OUT(U3_API_PHY_CONFIG_1, 0);
1542 }
1543 #endif /* CONFIG_PPC64 */
1544 
1545 #ifndef CONFIG_PPC64
1546 
1547 
1548 #ifdef CONFIG_PM
1549 static u32 save_gpio_levels[2];
1550 static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
1551 static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
1552 static u32 save_unin_clock_ctl;
1553 
1554 static void keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
1555 {
1556         u32 temp;
1557 
1558         if (sleep_mode) {
1559                 mdelay(1);
1560                 MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
1561                 (void)MACIO_IN32(KEYLARGO_FCR0);
1562                 mdelay(1);
1563         }
1564 
1565         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1566                                 KL0_SCC_CELL_ENABLE |
1567                                 KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
1568                                 KL0_IRDA_CLK19_ENABLE);
1569 
1570         MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
1571         MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
1572 
1573         MACIO_BIC(KEYLARGO_FCR1,
1574                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1575                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1576                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1577                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1578                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1579                 KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
1580                 KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
1581                 KL1_UIDE_ENABLE);
1582 
1583         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1584         MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
1585 
1586         temp = MACIO_IN32(KEYLARGO_FCR3);
1587         if (macio->rev >= 2) {
1588                 temp |= KL3_SHUTDOWN_PLL2X;
1589                 if (sleep_mode)
1590                         temp |= KL3_SHUTDOWN_PLL_TOTAL;
1591         }
1592 
1593         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1594                 KL3_SHUTDOWN_PLLKW35;
1595         if (sleep_mode)
1596                 temp |= KL3_SHUTDOWN_PLLKW12;
1597         temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
1598                 | KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1599         if (sleep_mode)
1600                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
1601         MACIO_OUT32(KEYLARGO_FCR3, temp);
1602 
1603         /* Flush posted writes & wait a bit */
1604         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1605 }
1606 
1607 static void pangea_shutdown(struct macio_chip *macio, int sleep_mode)
1608 {
1609         u32 temp;
1610 
1611         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1612                                 KL0_SCC_CELL_ENABLE |
1613                                 KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
1614 
1615         MACIO_BIC(KEYLARGO_FCR1,
1616                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1617                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1618                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1619                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1620                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1621                 KL1_UIDE_ENABLE);
1622         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1623                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1624 
1625         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1626 
1627         temp = MACIO_IN32(KEYLARGO_FCR3);
1628         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1629                 KL3_SHUTDOWN_PLLKW35;
1630         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
1631                 | KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
1632         if (sleep_mode)
1633                 temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
1634         MACIO_OUT32(KEYLARGO_FCR3, temp);
1635 
1636         /* Flush posted writes & wait a bit */
1637         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1638 }
1639 
1640 static void intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
1641 {
1642         u32 temp;
1643 
1644         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1645                   KL0_SCC_CELL_ENABLE);
1646 
1647         MACIO_BIC(KEYLARGO_FCR1,
1648                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1649                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1650                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1651                 KL1_EIDE0_ENABLE);
1652         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1653                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1654 
1655         temp = MACIO_IN32(KEYLARGO_FCR3);
1656         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
1657                   KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1658         if (sleep_mode)
1659                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
1660         MACIO_OUT32(KEYLARGO_FCR3, temp);
1661 
1662         /* Flush posted writes & wait a bit */
1663         (void)MACIO_IN32(KEYLARGO_FCR0);
1664         mdelay(10);
1665 }
1666 
1667 
1668 static int
1669 core99_sleep(void)
1670 {
1671         struct macio_chip *macio;
1672         int i;
1673 
1674         macio = &macio_chips[0];
1675         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1676             macio->type != macio_intrepid)
1677                 return -ENODEV;
1678 
1679         /* We power off the wireless slot in case it was not done
1680          * by the driver. We don't power it on automatically however
1681          */
1682         if (macio->flags & MACIO_FLAG_AIRPORT_ON)
1683                 core99_airport_enable(macio->of_node, 0, 0);
1684 
1685         /* We power off the FW cable. Should be done by the driver... */
1686         if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
1687                 core99_firewire_enable(NULL, 0, 0);
1688                 core99_firewire_cable_power(NULL, 0, 0);
1689         }
1690 
1691         /* We make sure int. modem is off (in case driver lost it) */
1692         if (macio->type == macio_keylargo)
1693                 core99_modem_enable(macio->of_node, 0, 0);
1694         else
1695                 pangea_modem_enable(macio->of_node, 0, 0);
1696 
1697         /* We make sure the sound is off as well */
1698         core99_sound_chip_enable(macio->of_node, 0, 0);
1699 
1700         /*
1701          * Save various bits of KeyLargo
1702          */
1703 
1704         /* Save the state of the various GPIOs */
1705         save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
1706         save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
1707         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1708                 save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
1709         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1710                 save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
1711 
1712         /* Save the FCRs */
1713         if (macio->type == macio_keylargo)
1714                 save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
1715         save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
1716         save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
1717         save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
1718         save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
1719         save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
1720         if (macio->type == macio_pangea || macio->type == macio_intrepid)
1721                 save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
1722 
1723         /* Save state & config of DBDMA channels */
1724         dbdma_save(macio, save_dbdma);
1725 
1726         /*
1727          * Turn off as much as we can
1728          */
1729         if (macio->type == macio_pangea)
1730                 pangea_shutdown(macio, 1);
1731         else if (macio->type == macio_intrepid)
1732                 intrepid_shutdown(macio, 1);
1733         else if (macio->type == macio_keylargo)
1734                 keylargo_shutdown(macio, 1);
1735 
1736         /*
1737          * Put the host bridge to sleep
1738          */
1739 
1740         save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
1741         /* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
1742          * enabled !
1743          */
1744         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
1745                ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
1746         udelay(100);
1747         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1748         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
1749         mdelay(10);
1750 
1751         /*
1752          * FIXME: A bit of black magic with OpenPIC (don't ask me why)
1753          */
1754         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1755                 MACIO_BIS(0x506e0, 0x00400000);
1756                 MACIO_BIS(0x506e0, 0x80000000);
1757         }
1758         return 0;
1759 }
1760 
1761 static int
1762 core99_wake_up(void)
1763 {
1764         struct macio_chip *macio;
1765         int i;
1766 
1767         macio = &macio_chips[0];
1768         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1769             macio->type != macio_intrepid)
1770                 return -ENODEV;
1771 
1772         /*
1773          * Wakeup the host bridge
1774          */
1775         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1776         udelay(10);
1777         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1778         udelay(10);
1779 
1780         /*
1781          * Restore KeyLargo
1782          */
1783 
1784         if (macio->type == macio_keylargo) {
1785                 MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
1786                 (void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
1787         }
1788         MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
1789         (void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
1790         MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
1791         (void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
1792         MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
1793         (void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
1794         MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
1795         (void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
1796         MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
1797         (void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
1798         if (macio->type == macio_pangea || macio->type == macio_intrepid) {
1799                 MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
1800                 (void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
1801         }
1802 
1803         dbdma_restore(macio, save_dbdma);
1804 
1805         MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
1806         MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
1807         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1808                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
1809         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1810                 MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
1811 
1812         /* FIXME more black magic with OpenPIC ... */
1813         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1814                 MACIO_BIC(0x506e0, 0x00400000);
1815                 MACIO_BIC(0x506e0, 0x80000000);
1816         }
1817 
1818         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1819         udelay(100);
1820 
1821         return 0;
1822 }
1823 
1824 #endif /* CONFIG_PM */
1825 
1826 static long
1827 core99_sleep_state(struct device_node *node, long param, long value)
1828 {
1829         /* Param == 1 means to enter the "fake sleep" mode that is
1830          * used for CPU speed switch
1831          */
1832         if (param == 1) {
1833                 if (value == 1) {
1834                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1835                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
1836                 } else {
1837                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1838                         udelay(10);
1839                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1840                         udelay(10);
1841                 }
1842                 return 0;
1843         }
1844         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
1845                 return -EPERM;
1846 
1847 #ifdef CONFIG_PM
1848         if (value == 1)
1849                 return core99_sleep();
1850         else if (value == 0)
1851                 return core99_wake_up();
1852 
1853 #endif /* CONFIG_PM */
1854         return 0;
1855 }
1856 
1857 #endif /* CONFIG_PPC64 */
1858 
1859 static long
1860 generic_dev_can_wake(struct device_node *node, long param, long value)
1861 {
1862         /* Todo: eventually check we are really dealing with on-board
1863          * video device ...
1864          */
1865 
1866         if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
1867                 pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
1868         return 0;
1869 }
1870 
1871 static long generic_get_mb_info(struct device_node *node, long param, long value)
1872 {
1873         switch(param) {
1874                 case PMAC_MB_INFO_MODEL:
1875                         return pmac_mb.model_id;
1876                 case PMAC_MB_INFO_FLAGS:
1877                         return pmac_mb.board_flags;
1878                 case PMAC_MB_INFO_NAME:
1879                         /* hack hack hack... but should work */
1880                         *((const char **)value) = pmac_mb.model_name;
1881                         return 0;
1882         }
1883         return -EINVAL;
1884 }
1885 
1886 
1887 /*
1888  * Table definitions
1889  */
1890 
1891 /* Used on any machine
1892  */
1893 static struct feature_table_entry any_features[] = {
1894         { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
1895         { PMAC_FTR_DEVICE_CAN_WAKE,     generic_dev_can_wake },
1896         { 0, NULL }
1897 };
1898 
1899 #ifndef CONFIG_PPC64
1900 
1901 /* OHare based motherboards. Currently, we only use these on the
1902  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
1903  * to have issues with turning on/off those asic cells
1904  */
1905 static struct feature_table_entry ohare_features[] = {
1906         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1907         { PMAC_FTR_SWIM3_ENABLE,        ohare_floppy_enable },
1908         { PMAC_FTR_MESH_ENABLE,         ohare_mesh_enable },
1909         { PMAC_FTR_IDE_ENABLE,          ohare_ide_enable},
1910         { PMAC_FTR_IDE_RESET,           ohare_ide_reset},
1911         { PMAC_FTR_SLEEP_STATE,         ohare_sleep_state },
1912         { 0, NULL }
1913 };
1914 
1915 /* Heathrow desktop machines (Beige G3).
1916  * Separated as some features couldn't be properly tested
1917  * and the serial port control bits appear to confuse it.
1918  */
1919 static struct feature_table_entry heathrow_desktop_features[] = {
1920         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1921         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1922         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1923         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1924         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1925         { 0, NULL }
1926 };
1927 
1928 /* Heathrow based laptop, that is the Wallstreet and mainstreet
1929  * powerbooks.
1930  */
1931 static struct feature_table_entry heathrow_laptop_features[] = {
1932         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1933         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1934         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1935         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1936         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1937         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1938         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1939         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1940         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1941         { 0, NULL }
1942 };
1943 
1944 /* Paddington based machines
1945  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
1946  */
1947 static struct feature_table_entry paddington_features[] = {
1948         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1949         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1950         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1951         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1952         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1953         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1954         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1955         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1956         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1957         { 0, NULL }
1958 };
1959 
1960 /* Core99 & MacRISC 2 machines (all machines released since the
1961  * iBook (included), that is all AGP machines, except pangea
1962  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
1963  * used on iBook2 & iMac "flow power".
1964  */
1965 static struct feature_table_entry core99_features[] = {
1966         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1967         { PMAC_FTR_MODEM_ENABLE,        core99_modem_enable },
1968         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1969         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1970         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1971         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1972         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
1973         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
1974         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1975         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1976         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
1977 #ifdef CONFIG_PM
1978         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
1979 #endif
1980 #ifdef CONFIG_SMP
1981         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
1982 #endif /* CONFIG_SMP */
1983         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
1984         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
1985         { 0, NULL }
1986 };
1987 
1988 /* RackMac
1989  */
1990 static struct feature_table_entry rackmac_features[] = {
1991         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1992         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1993         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1994         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1995         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1996         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1997         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1998         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
1999         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2000 #ifdef CONFIG_SMP
2001         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
2002 #endif /* CONFIG_SMP */
2003         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2004         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2005         { 0, NULL }
2006 };
2007 
2008 /* Pangea features
2009  */
2010 static struct feature_table_entry pangea_features[] = {
2011         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2012         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2013         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2014         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2015         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2016         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2017         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2018         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2019         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2020         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2021         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2022         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2023         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2024         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2025         { 0, NULL }
2026 };
2027 
2028 /* Intrepid features
2029  */
2030 static struct feature_table_entry intrepid_features[] = {
2031         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2032         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2033         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2034         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2035         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2036         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2037         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2038         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2039         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2040         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2041         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2042         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2043         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2044         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2045         { PMAC_FTR_AACK_DELAY_ENABLE,   intrepid_aack_delay_enable },
2046         { 0, NULL }
2047 };
2048 
2049 #else /* CONFIG_PPC64 */
2050 
2051 /* G5 features
2052  */
2053 static struct feature_table_entry g5_features[] = {
2054         { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
2055         { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
2056         { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
2057         { PMAC_FTR_GMAC_PHY_RESET,      g5_eth_phy_reset },
2058         { PMAC_FTR_SOUND_CHIP_ENABLE,   g5_i2s_enable },
2059 #ifdef CONFIG_SMP
2060         { PMAC_FTR_RESET_CPU,           g5_reset_cpu },
2061 #endif /* CONFIG_SMP */
2062         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2063         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2064         { 0, NULL }
2065 };
2066 
2067 #endif /* CONFIG_PPC64 */
2068 
2069 static struct pmac_mb_def pmac_mb_defs[] = {
2070 #ifndef CONFIG_PPC64
2071         /*
2072          * Desktops
2073          */
2074 
2075         {       "AAPL,8500",                    "PowerMac 8500/8600",
2076                 PMAC_TYPE_PSURGE,               NULL,
2077                 0
2078         },
2079         {       "AAPL,9500",                    "PowerMac 9500/9600",
2080                 PMAC_TYPE_PSURGE,               NULL,
2081                 0
2082         },
2083         {       "AAPL,7200",                    "PowerMac 7200",
2084                 PMAC_TYPE_PSURGE,               NULL,
2085                 0
2086         },
2087         {       "AAPL,7300",                    "PowerMac 7200/7300",
2088                 PMAC_TYPE_PSURGE,               NULL,
2089                 0
2090         },
2091         {       "AAPL,7500",                    "PowerMac 7500",
2092                 PMAC_TYPE_PSURGE,               NULL,
2093                 0
2094         },
2095         {       "AAPL,ShinerESB",               "Apple Network Server",
2096                 PMAC_TYPE_ANS,                  NULL,
2097                 0
2098         },
2099         {       "AAPL,e407",                    "Alchemy",
2100                 PMAC_TYPE_ALCHEMY,              NULL,
2101                 0
2102         },
2103         {       "AAPL,e411",                    "Gazelle",
2104                 PMAC_TYPE_GAZELLE,              NULL,
2105                 0
2106         },
2107         {       "AAPL,Gossamer",                "PowerMac G3 (Gossamer)",
2108                 PMAC_TYPE_GOSSAMER,             heathrow_desktop_features,
2109                 0
2110         },
2111         {       "AAPL,PowerMac G3",             "PowerMac G3 (Silk)",
2112                 PMAC_TYPE_SILK,                 heathrow_desktop_features,
2113                 0
2114         },
2115         {       "PowerMac1,1",                  "Blue&White G3",
2116                 PMAC_TYPE_YOSEMITE,             paddington_features,
2117                 0
2118         },
2119         {       "PowerMac1,2",                  "PowerMac G4 PCI Graphics",
2120                 PMAC_TYPE_YIKES,                paddington_features,
2121                 0
2122         },
2123         {       "PowerMac2,1",                  "iMac FireWire",
2124                 PMAC_TYPE_FW_IMAC,              core99_features,
2125                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2126         },
2127         {       "PowerMac2,2",                  "iMac FireWire",
2128                 PMAC_TYPE_FW_IMAC,              core99_features,
2129                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2130         },
2131         {       "PowerMac3,1",                  "PowerMac G4 AGP Graphics",
2132                 PMAC_TYPE_SAWTOOTH,             core99_features,
2133                 PMAC_MB_OLD_CORE99
2134         },
2135         {       "PowerMac3,2",                  "PowerMac G4 AGP Graphics",
2136                 PMAC_TYPE_SAWTOOTH,             core99_features,
2137                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2138         },
2139         {       "PowerMac3,3",                  "PowerMac G4 AGP Graphics",
2140                 PMAC_TYPE_SAWTOOTH,             core99_features,
2141                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2142         },
2143         {       "PowerMac3,4",                  "PowerMac G4 Silver",
2144                 PMAC_TYPE_QUICKSILVER,          core99_features,
2145                 PMAC_MB_MAY_SLEEP
2146         },
2147         {       "PowerMac3,5",                  "PowerMac G4 Silver",
2148                 PMAC_TYPE_QUICKSILVER,          core99_features,
2149                 PMAC_MB_MAY_SLEEP
2150         },
2151         {       "PowerMac3,6",                  "PowerMac G4 Windtunnel",
2152                 PMAC_TYPE_WINDTUNNEL,           core99_features,
2153                 PMAC_MB_MAY_SLEEP,
2154         },
2155         {       "PowerMac4,1",                  "iMac \"Flower Power\"",
2156                 PMAC_TYPE_PANGEA_IMAC,          pangea_features,
2157                 PMAC_MB_MAY_SLEEP
2158         },
2159         {       "PowerMac4,2",                  "Flat panel iMac",
2160                 PMAC_TYPE_FLAT_PANEL_IMAC,      pangea_features,
2161                 PMAC_MB_CAN_SLEEP
2162         },
2163         {       "PowerMac4,4",                  "eMac",
2164                 PMAC_TYPE_EMAC,                 core99_features,
2165                 PMAC_MB_MAY_SLEEP
2166         },
2167         {       "PowerMac5,1",                  "PowerMac G4 Cube",
2168                 PMAC_TYPE_CUBE,                 core99_features,
2169                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2170         },
2171         {       "PowerMac6,1",                  "Flat panel iMac",
2172                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2173                 PMAC_MB_MAY_SLEEP,
2174         },
2175         {       "PowerMac6,3",                  "Flat panel iMac",
2176                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2177                 PMAC_MB_MAY_SLEEP,
2178         },
2179         {       "PowerMac6,4",                  "eMac",
2180                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2181                 PMAC_MB_MAY_SLEEP,
2182         },
2183         {       "PowerMac10,1",                 "Mac mini",
2184                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2185                 PMAC_MB_MAY_SLEEP,
2186         },
2187         {       "PowerMac10,2",                 "Mac mini (Late 2005)",
2188                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2189                 PMAC_MB_MAY_SLEEP,
2190         },
2191         {       "iMac,1",                       "iMac (first generation)",
2192                 PMAC_TYPE_ORIG_IMAC,            paddington_features,
2193                 0
2194         },
2195 
2196         /*
2197          * Xserve's
2198          */
2199 
2200         {       "RackMac1,1",                   "XServe",
2201                 PMAC_TYPE_RACKMAC,              rackmac_features,
2202                 0,
2203         },
2204         {       "RackMac1,2",                   "XServe rev. 2",
2205                 PMAC_TYPE_RACKMAC,              rackmac_features,
2206                 0,
2207         },
2208 
2209         /*
2210          * Laptops
2211          */
2212 
2213         {       "AAPL,3400/2400",               "PowerBook 3400",
2214                 PMAC_TYPE_HOOPER,               ohare_features,
2215                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2216         },
2217         {       "AAPL,3500",                    "PowerBook 3500",
2218                 PMAC_TYPE_KANGA,                ohare_features,
2219                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2220         },
2221         {       "AAPL,PowerBook1998",           "PowerBook Wallstreet",
2222                 PMAC_TYPE_WALLSTREET,           heathrow_laptop_features,
2223                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2224         },
2225         {       "PowerBook1,1",                 "PowerBook 101 (Lombard)",
2226                 PMAC_TYPE_101_PBOOK,            paddington_features,
2227                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2228         },
2229         {       "PowerBook2,1",                 "iBook (first generation)",
2230                 PMAC_TYPE_ORIG_IBOOK,           core99_features,
2231                 PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2232         },
2233         {       "PowerBook2,2",                 "iBook FireWire",
2234                 PMAC_TYPE_FW_IBOOK,             core99_features,
2235                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2236                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2237         },
2238         {       "PowerBook3,1",                 "PowerBook Pismo",
2239                 PMAC_TYPE_PISMO,                core99_features,
2240                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2241                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2242         },
2243         {       "PowerBook3,2",                 "PowerBook Titanium",
2244                 PMAC_TYPE_TITANIUM,             core99_features,
2245                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2246         },
2247         {       "PowerBook3,3",                 "PowerBook Titanium II",
2248                 PMAC_TYPE_TITANIUM2,            core99_features,
2249                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2250         },
2251         {       "PowerBook3,4",                 "PowerBook Titanium III",
2252                 PMAC_TYPE_TITANIUM3,            core99_features,
2253                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2254         },
2255         {       "PowerBook3,5",                 "PowerBook Titanium IV",
2256                 PMAC_TYPE_TITANIUM4,            core99_features,
2257                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2258         },
2259         {       "PowerBook4,1",                 "iBook 2",
2260                 PMAC_TYPE_IBOOK2,               pangea_features,
2261                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2262         },
2263         {       "PowerBook4,2",                 "iBook 2",
2264                 PMAC_TYPE_IBOOK2,               pangea_features,
2265                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2266         },
2267         {       "PowerBook4,3",                 "iBook 2 rev. 2",
2268                 PMAC_TYPE_IBOOK2,               pangea_features,
2269                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2270         },
2271         {       "PowerBook5,1",                 "PowerBook G4 17\"",
2272                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2273                 PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2274         },
2275         {       "PowerBook5,2",                 "PowerBook G4 15\"",
2276                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2277                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2278         },
2279         {       "PowerBook5,3",                 "PowerBook G4 17\"",
2280                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2281                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2282         },
2283         {       "PowerBook5,4",                 "PowerBook G4 15\"",
2284                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2285                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2286         },
2287         {       "PowerBook5,5",                 "PowerBook G4 17\"",
2288                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2289                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2290         },
2291         {       "PowerBook5,6",                 "PowerBook G4 15\"",
2292                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2293                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2294         },
2295         {       "PowerBook5,7",                 "PowerBook G4 17\"",
2296                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2297                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2298         },
2299         {       "PowerBook5,8",                 "PowerBook G4 15\"",
2300                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2301                 PMAC_MB_MAY_SLEEP  | PMAC_MB_MOBILE,
2302         },
2303         {       "PowerBook5,9",                 "PowerBook G4 17\"",
2304                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2305                 PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE,
2306         },
2307         {       "PowerBook6,1",                 "PowerBook G4 12\"",
2308                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2309                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2310         },
2311         {       "PowerBook6,2",                 "PowerBook G4",
2312                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2313                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2314         },
2315         {       "PowerBook6,3",                 "iBook G4",
2316                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2317                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2318         },
2319         {       "PowerBook6,4",                 "PowerBook G4 12\"",
2320                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2321                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2322         },
2323         {       "PowerBook6,5",                 "iBook G4",
2324                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2325                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2326         },
2327         {       "PowerBook6,7",                 "iBook G4",
2328                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2329                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2330         },
2331         {       "PowerBook6,8",                 "PowerBook G4 12\"",
2332                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2333                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2334         },
2335 #else /* CONFIG_PPC64 */
2336         {       "PowerMac7,2",                  "PowerMac G5",
2337                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2338                 0,
2339         },
2340 #ifdef CONFIG_PPC64
2341         {       "PowerMac7,3",                  "PowerMac G5",
2342                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2343                 0,
2344         },
2345         {       "PowerMac8,1",                  "iMac G5",
2346                 PMAC_TYPE_IMAC_G5,              g5_features,
2347                 0,
2348         },
2349         {       "PowerMac9,1",                  "PowerMac G5",
2350                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2351                 0,
2352         },
2353         {       "PowerMac11,2",                 "PowerMac G5 Dual Core",
2354                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2355                 0,
2356         },
2357         {       "PowerMac12,1",                 "iMac G5 (iSight)",
2358                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2359                 0,
2360         },
2361         {       "RackMac3,1",                   "XServe G5",
2362                 PMAC_TYPE_XSERVE_G5,            g5_features,
2363                 0,
2364         },
2365 #endif /* CONFIG_PPC64 */
2366 #endif /* CONFIG_PPC64 */
2367 };
2368 
2369 /*
2370  * The toplevel feature_call callback
2371  */
2372 long pmac_do_feature_call(unsigned int selector, ...)
2373 {
2374         struct device_node *node;
2375         long param, value;
2376         int i;
2377         feature_call func = NULL;
2378         va_list args;
2379 
2380         if (pmac_mb.features)
2381                 for (i=0; pmac_mb.features[i].function; i++)
2382                         if (pmac_mb.features[i].selector == selector) {
2383                                 func = pmac_mb.features[i].function;
2384                                 break;
2385                         }
2386         if (!func)
2387                 for (i=0; any_features[i].function; i++)
2388                         if (any_features[i].selector == selector) {
2389                                 func = any_features[i].function;
2390                                 break;
2391                         }
2392         if (!func)
2393                 return -ENODEV;
2394 
2395         va_start(args, selector);
2396         node = (struct device_node*)va_arg(args, void*);
2397         param = va_arg(args, long);
2398         value = va_arg(args, long);
2399         va_end(args);
2400 
2401         return func(node, param, value);
2402 }
2403 
2404 static int __init probe_motherboard(void)
2405 {
2406         int i;
2407         struct macio_chip *macio = &macio_chips[0];
2408         const char *model = NULL;
2409         struct device_node *dt;
2410         int ret = 0;
2411 
2412         /* Lookup known motherboard type in device-tree. First try an
2413          * exact match on the "model" property, then try a "compatible"
2414          * match is none is found.
2415          */
2416         dt = of_find_node_by_name(NULL, "device-tree");
2417         if (dt != NULL)
2418                 model = of_get_property(dt, "model", NULL);
2419         for(i=0; model && i<ARRAY_SIZE(pmac_mb_defs); i++) {
2420             if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
2421                 pmac_mb = pmac_mb_defs[i];
2422                 goto found;
2423             }
2424         }
2425         for(i=0; i<ARRAY_SIZE(pmac_mb_defs); i++) {
2426             if (of_machine_is_compatible(pmac_mb_defs[i].model_string)) {
2427                 pmac_mb = pmac_mb_defs[i];
2428                 goto found;
2429             }
2430         }
2431 
2432         /* Fallback to selection depending on mac-io chip type */
2433         switch(macio->type) {
2434 #ifndef CONFIG_PPC64
2435             case macio_grand_central:
2436                 pmac_mb.model_id = PMAC_TYPE_PSURGE;
2437                 pmac_mb.model_name = "Unknown PowerSurge";
2438                 break;
2439             case macio_ohare:
2440                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
2441                 pmac_mb.model_name = "Unknown OHare-based";
2442                 break;
2443             case macio_heathrow:
2444                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
2445                 pmac_mb.model_name = "Unknown Heathrow-based";
2446                 pmac_mb.features = heathrow_desktop_features;
2447                 break;
2448             case macio_paddington:
2449                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
2450                 pmac_mb.model_name = "Unknown Paddington-based";
2451                 pmac_mb.features = paddington_features;
2452                 break;
2453             case macio_keylargo:
2454                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
2455                 pmac_mb.model_name = "Unknown Keylargo-based";
2456                 pmac_mb.features = core99_features;
2457                 break;
2458             case macio_pangea:
2459                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
2460                 pmac_mb.model_name = "Unknown Pangea-based";
2461                 pmac_mb.features = pangea_features;
2462                 break;
2463             case macio_intrepid:
2464                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
2465                 pmac_mb.model_name = "Unknown Intrepid-based";
2466                 pmac_mb.features = intrepid_features;
2467                 break;
2468 #else /* CONFIG_PPC64 */
2469         case macio_keylargo2:
2470                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
2471                 pmac_mb.model_name = "Unknown K2-based";
2472                 pmac_mb.features = g5_features;
2473                 break;
2474         case macio_shasta:
2475                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
2476                 pmac_mb.model_name = "Unknown Shasta-based";
2477                 pmac_mb.features = g5_features;
2478                 break;
2479 #endif /* CONFIG_PPC64 */
2480         default:
2481                 ret = -ENODEV;
2482                 goto done;
2483         }
2484 found:
2485 #ifndef CONFIG_PPC64
2486         /* Fixup Hooper vs. Comet */
2487         if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
2488                 u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
2489                 if (!mach_id_ptr) {
2490                         ret = -ENODEV;
2491                         goto done;
2492                 }
2493                 /* Here, I used to disable the media-bay on comet. It
2494                  * appears this is wrong, the floppy connector is actually
2495                  * a kind of media-bay and works with the current driver.
2496                  */
2497                 if (__raw_readl(mach_id_ptr) & 0x20000000UL)
2498                         pmac_mb.model_id = PMAC_TYPE_COMET;
2499                 iounmap(mach_id_ptr);
2500         }
2501 
2502         /* Set default value of powersave_nap on machines that support it.
2503          * It appears that uninorth rev 3 has a problem with it, we don't
2504          * enable it on those. In theory, the flush-on-lock property is
2505          * supposed to be set when not supported, but I'm not very confident
2506          * that all Apple OF revs did it properly, I do it the paranoid way.
2507          */
2508         if (uninorth_base && uninorth_rev > 3) {
2509                 struct device_node *np;
2510 
2511                 for_each_of_cpu_node(np) {
2512                         int cpu_count = 1;
2513 
2514                         /* Nap mode not supported on SMP */
2515                         if (of_get_property(np, "flush-on-lock", NULL) ||
2516                             (cpu_count > 1)) {
2517                                 powersave_nap = 0;
2518                                 of_node_put(np);
2519                                 break;
2520                         }
2521 
2522                         cpu_count++;
2523                         powersave_nap = 1;
2524                 }
2525         }
2526         if (powersave_nap)
2527                 printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
2528 
2529         /* On CPUs that support it (750FX), lowspeed by default during
2530          * NAP mode
2531          */
2532         powersave_lowspeed = 1;
2533 
2534 #else /* CONFIG_PPC64 */
2535         powersave_nap = 1;
2536 #endif  /* CONFIG_PPC64 */
2537 
2538         /* Check for "mobile" machine */
2539         if (model && (strncmp(model, "PowerBook", 9) == 0
2540                    || strncmp(model, "iBook", 5) == 0))
2541                 pmac_mb.board_flags |= PMAC_MB_MOBILE;
2542 
2543 
2544         printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
2545 done:
2546         of_node_put(dt);
2547         return ret;
2548 }
2549 
2550 /* Initialize the Core99 UniNorth host bridge and memory controller
2551  */
2552 static void __init probe_uninorth(void)
2553 {
2554         const u32 *addrp;
2555         phys_addr_t address;
2556         unsigned long actrl;
2557 
2558         /* Locate core99 Uni-N */
2559         uninorth_node = of_find_node_by_name(NULL, "uni-n");
2560         uninorth_maj = 1;
2561 
2562         /* Locate G5 u3 */
2563         if (uninorth_node == NULL) {
2564                 uninorth_node = of_find_node_by_name(NULL, "u3");
2565                 uninorth_maj = 3;
2566         }
2567         /* Locate G5 u4 */
2568         if (uninorth_node == NULL) {
2569                 uninorth_node = of_find_node_by_name(NULL, "u4");
2570                 uninorth_maj = 4;
2571         }
2572         if (uninorth_node == NULL) {
2573                 uninorth_maj = 0;
2574                 return;
2575         }
2576 
2577         addrp = of_get_property(uninorth_node, "reg", NULL);
2578         if (addrp == NULL)
2579                 return;
2580         address = of_translate_address(uninorth_node, addrp);
2581         if (address == 0)
2582                 return;
2583         uninorth_base = ioremap(address, 0x40000);
2584         if (uninorth_base == NULL)
2585                 return;
2586         uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
2587         if (uninorth_maj == 3 || uninorth_maj == 4) {
2588                 u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
2589                 if (u3_ht_base == NULL) {
2590                         iounmap(uninorth_base);
2591                         return;
2592                 }
2593         }
2594 
2595         printk(KERN_INFO "Found %s memory controller & host bridge"
2596                " @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
2597                uninorth_maj == 4 ? "U4" : "UniNorth",
2598                (unsigned int)address, uninorth_rev);
2599         printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
2600 
2601         /* Set the arbitrer QAck delay according to what Apple does
2602          */
2603         if (uninorth_rev < 0x11) {
2604                 actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
2605                 actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
2606                         UNI_N_ARB_CTRL_QACK_DELAY) <<
2607                         UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
2608                 UN_OUT(UNI_N_ARB_CTRL, actrl);
2609         }
2610 
2611         /* Some more magic as done by them in recent MacOS X on UniNorth
2612          * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
2613          * memory timeout
2614          */
2615         if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
2616             uninorth_rev == 0xc0)
2617                 UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
2618 }
2619 
2620 static void __init probe_one_macio(const char *name, const char *compat, int type)
2621 {
2622         struct device_node*     node;
2623         int                     i;
2624         volatile u32 __iomem    *base;
2625         const u32               *addrp, *revp;
2626         phys_addr_t             addr;
2627         u64                     size;
2628 
2629         for_each_node_by_name(node, name) {
2630                 if (!compat)
2631                         break;
2632                 if (of_device_is_compatible(node, compat))
2633                         break;
2634         }
2635         if (!node)
2636                 return;
2637         for(i=0; i<MAX_MACIO_CHIPS; i++) {
2638                 if (!macio_chips[i].of_node)
2639                         break;
2640                 if (macio_chips[i].of_node == node)
2641                         return;
2642         }
2643 
2644         if (i >= MAX_MACIO_CHIPS) {
2645                 printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
2646                 printk(KERN_ERR "pmac_feature: %pOF skipped\n", node);
2647                 return;
2648         }
2649         addrp = of_get_pci_address(node, 0, &size, NULL);
2650         if (addrp == NULL) {
2651                 printk(KERN_ERR "pmac_feature: %pOF: can't find base !\n",
2652                        node);
2653                 return;
2654         }
2655         addr = of_translate_address(node, addrp);
2656         if (addr == 0) {
2657                 printk(KERN_ERR "pmac_feature: %pOF, can't translate base !\n",
2658                        node);
2659                 return;
2660         }
2661         base = ioremap(addr, (unsigned long)size);
2662         if (!base) {
2663                 printk(KERN_ERR "pmac_feature: %pOF, can't map mac-io chip !\n",
2664                        node);
2665                 return;
2666         }
2667         if (type == macio_keylargo || type == macio_keylargo2) {
2668                 const u32 *did = of_get_property(node, "device-id", NULL);
2669                 if (*did == 0x00000025)
2670                         type = macio_pangea;
2671                 if (*did == 0x0000003e)
2672                         type = macio_intrepid;
2673                 if (*did == 0x0000004f)
2674                         type = macio_shasta;
2675         }
2676         macio_chips[i].of_node  = node;
2677         macio_chips[i].type     = type;
2678         macio_chips[i].base     = base;
2679         macio_chips[i].flags    = MACIO_FLAG_SCCA_ON | MACIO_FLAG_SCCB_ON;
2680         macio_chips[i].name     = macio_names[type];
2681         revp = of_get_property(node, "revision-id", NULL);
2682         if (revp)
2683                 macio_chips[i].rev = *revp;
2684         printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
2685                 macio_names[type], macio_chips[i].rev, macio_chips[i].base);
2686 }
2687 
2688 static int __init
2689 probe_macios(void)
2690 {
2691         /* Warning, ordering is important */
2692         probe_one_macio("gc", NULL, macio_grand_central);
2693         probe_one_macio("ohare", NULL, macio_ohare);
2694         probe_one_macio("pci106b,7", NULL, macio_ohareII);
2695         probe_one_macio("mac-io", "keylargo", macio_keylargo);
2696         probe_one_macio("mac-io", "paddington", macio_paddington);
2697         probe_one_macio("mac-io", "gatwick", macio_gatwick);
2698         probe_one_macio("mac-io", "heathrow", macio_heathrow);
2699         probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
2700 
2701         /* Make sure the "main" macio chip appear first */
2702         if (macio_chips[0].type == macio_gatwick
2703             && macio_chips[1].type == macio_heathrow) {
2704                 struct macio_chip temp = macio_chips[0];
2705                 macio_chips[0] = macio_chips[1];
2706                 macio_chips[1] = temp;
2707         }
2708         if (macio_chips[0].type == macio_ohareII
2709             && macio_chips[1].type == macio_ohare) {
2710                 struct macio_chip temp = macio_chips[0];
2711                 macio_chips[0] = macio_chips[1];
2712                 macio_chips[1] = temp;
2713         }
2714         macio_chips[0].lbus.index = 0;
2715         macio_chips[1].lbus.index = 1;
2716 
2717         return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
2718 }
2719 
2720 static void __init
2721 initial_serial_shutdown(struct device_node *np)
2722 {
2723         int len;
2724         const struct slot_names_prop {
2725                 int     count;
2726                 char    name[1];
2727         } *slots;
2728         const char *conn;
2729         int port_type = PMAC_SCC_ASYNC;
2730         int modem = 0;
2731 
2732         slots = of_get_property(np, "slot-names", &len);
2733         conn = of_get_property(np, "AAPL,connector", &len);
2734         if (conn && (strcmp(conn, "infrared") == 0))
2735                 port_type = PMAC_SCC_IRDA;
2736         else if (of_device_is_compatible(np, "cobalt"))
2737                 modem = 1;
2738         else if (slots && slots->count > 0) {
2739                 if (strcmp(slots->name, "IrDA") == 0)
2740                         port_type = PMAC_SCC_IRDA;
2741                 else if (strcmp(slots->name, "Modem") == 0)
2742                         modem = 1;
2743         }
2744         if (modem)
2745                 pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
2746         pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
2747 }
2748 
2749 static void __init
2750 set_initial_features(void)
2751 {
2752         struct device_node *np;
2753 
2754         /* That hack appears to be necessary for some StarMax motherboards
2755          * but I'm not too sure it was audited for side-effects on other
2756          * ohare based machines...
2757          * Since I still have difficulties figuring the right way to
2758          * differentiate them all and since that hack was there for a long
2759          * time, I'll keep it around
2760          */
2761         if (macio_chips[0].type == macio_ohare) {
2762                 struct macio_chip *macio = &macio_chips[0];
2763                 np = of_find_node_by_name(NULL, "via-pmu");
2764                 if (np)
2765                         MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2766                 else
2767                         MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
2768                 of_node_put(np);
2769         } else if (macio_chips[1].type == macio_ohare) {
2770                 struct macio_chip *macio = &macio_chips[1];
2771                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2772         }
2773 
2774 #ifdef CONFIG_PPC64
2775         if (macio_chips[0].type == macio_keylargo2 ||
2776             macio_chips[0].type == macio_shasta) {
2777 #ifndef CONFIG_SMP
2778                 /* On SMP machines running UP, we have the second CPU eating
2779                  * bus cycles. We need to take it off the bus. This is done
2780                  * from pmac_smp for SMP kernels running on one CPU
2781                  */
2782                 np = of_find_node_by_type(NULL, "cpu");
2783                 if (np != NULL)
2784                         np = of_find_node_by_type(np, "cpu");
2785                 if (np != NULL) {
2786                         g5_phy_disable_cpu1();
2787                         of_node_put(np);
2788                 }
2789 #endif /* CONFIG_SMP */
2790                 /* Enable GMAC for now for PCI probing. It will be disabled
2791                  * later on after PCI probe
2792                  */
2793                 for_each_node_by_name(np, "ethernet")
2794                         if (of_device_is_compatible(np, "K2-GMAC"))
2795                                 g5_gmac_enable(np, 0, 1);
2796 
2797                 /* Enable FW before PCI probe. Will be disabled later on
2798                  * Note: We should have a batter way to check that we are
2799                  * dealing with uninorth internal cell and not a PCI cell
2800                  * on the external PCI. The code below works though.
2801                  */
2802                 for_each_node_by_name(np, "firewire") {
2803                         if (of_device_is_compatible(np, "pci106b,5811")) {
2804                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2805                                 g5_fw_enable(np, 0, 1);
2806                         }
2807                 }
2808         }
2809 #else /* CONFIG_PPC64 */
2810 
2811         if (macio_chips[0].type == macio_keylargo ||
2812             macio_chips[0].type == macio_pangea ||
2813             macio_chips[0].type == macio_intrepid) {
2814                 /* Enable GMAC for now for PCI probing. It will be disabled
2815                  * later on after PCI probe
2816                  */
2817                 for_each_node_by_name(np, "ethernet") {
2818                         if (np->parent
2819                             && of_device_is_compatible(np->parent, "uni-north")
2820                             && of_device_is_compatible(np, "gmac"))
2821                                 core99_gmac_enable(np, 0, 1);
2822                 }
2823 
2824                 /* Enable FW before PCI probe. Will be disabled later on
2825                  * Note: We should have a batter way to check that we are
2826                  * dealing with uninorth internal cell and not a PCI cell
2827                  * on the external PCI. The code below works though.
2828                  */
2829                 for_each_node_by_name(np, "firewire") {
2830                         if (np->parent
2831                             && of_device_is_compatible(np->parent, "uni-north")
2832                             && (of_device_is_compatible(np, "pci106b,18") ||
2833                                 of_device_is_compatible(np, "pci106b,30") ||
2834                                 of_device_is_compatible(np, "pci11c1,5811"))) {
2835                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2836                                 core99_firewire_enable(np, 0, 1);
2837                         }
2838                 }
2839 
2840                 /* Enable ATA-100 before PCI probe. */
2841                 for_each_node_by_name(np, "ata-6") {
2842                         if (np->parent
2843                             && of_device_is_compatible(np->parent, "uni-north")
2844                             && of_device_is_compatible(np, "kauai-ata")) {
2845                                 core99_ata100_enable(np, 1);
2846                         }
2847                 }
2848 
2849                 /* Switch airport off */
2850                 for_each_node_by_name(np, "radio") {
2851                         if (np->parent == macio_chips[0].of_node) {
2852                                 macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
2853                                 core99_airport_enable(np, 0, 0);
2854                         }
2855                 }
2856         }
2857 
2858         /* On all machines that support sound PM, switch sound off */
2859         if (macio_chips[0].of_node)
2860                 pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
2861                         macio_chips[0].of_node, 0, 0);
2862 
2863         /* While on some desktop G3s, we turn it back on */
2864         if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
2865                 && (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
2866                     pmac_mb.model_id == PMAC_TYPE_SILK)) {
2867                 struct macio_chip *macio = &macio_chips[0];
2868                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
2869                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2870         }
2871 
2872 #endif /* CONFIG_PPC64 */
2873 
2874         /* On all machines, switch modem & serial ports off */
2875         for_each_node_by_name(np, "ch-a")
2876                 initial_serial_shutdown(np);
2877         for_each_node_by_name(np, "ch-b")
2878                 initial_serial_shutdown(np);
2879 }
2880 
2881 void __init
2882 pmac_feature_init(void)
2883 {
2884         /* Detect the UniNorth memory controller */
2885         probe_uninorth();
2886 
2887         /* Probe mac-io controllers */
2888         if (probe_macios()) {
2889                 printk(KERN_WARNING "No mac-io chip found\n");
2890                 return;
2891         }
2892 
2893         /* Probe machine type */
2894         if (probe_motherboard())
2895                 printk(KERN_WARNING "Unknown PowerMac !\n");
2896 
2897         /* Set some initial features (turn off some chips that will
2898          * be later turned on)
2899          */
2900         set_initial_features();
2901 }
2902 
2903 #if 0
2904 static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2905 {
2906         int     freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
2907         int     bits[8] = { 8,16,0,32,2,4,0,0 };
2908         int     freq = (frq >> 8) & 0xf;
2909 
2910         if (freqs[freq] == 0)
2911                 printk("%s: Unknown HT link frequency %x\n", name, freq);
2912         else
2913                 printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
2914                        name, freqs[freq],
2915                        bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
2916 }
2917 
2918 void __init pmac_check_ht_link(void)
2919 {
2920         u32     ufreq, freq, ucfg, cfg;
2921         struct device_node *pcix_node;
2922         u8      px_bus, px_devfn;
2923         struct pci_controller *px_hose;
2924 
2925         (void)in_be32(u3_ht_base + U3_HT_LINK_COMMAND);
2926         ucfg = cfg = in_be32(u3_ht_base + U3_HT_LINK_CONFIG);
2927         ufreq = freq = in_be32(u3_ht_base + U3_HT_LINK_FREQ);
2928         dump_HT_speeds("U3 HyperTransport", cfg, freq);
2929 
2930         pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
2931         if (pcix_node == NULL) {
2932                 printk("No PCI-X bridge found\n");
2933                 return;
2934         }
2935         if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
2936                 printk("PCI-X bridge found but not matched to pci\n");
2937                 return;
2938         }
2939         px_hose = pci_find_hose_for_OF_device(pcix_node);
2940         if (px_hose == NULL) {
2941                 printk("PCI-X bridge found but not matched to host\n");
2942                 return;
2943         }       
2944         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
2945         early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
2946         dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
2947         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2948         early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2949         dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2950 }
2951 #endif /* 0 */
2952 
2953 /*
2954  * Early video resume hook
2955  */
2956 
2957 static void (*pmac_early_vresume_proc)(void *data);
2958 static void *pmac_early_vresume_data;
2959 
2960 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
2961 {
2962         if (!machine_is(powermac))
2963                 return;
2964         preempt_disable();
2965         pmac_early_vresume_proc = proc;
2966         pmac_early_vresume_data = data;
2967         preempt_enable();
2968 }
2969 EXPORT_SYMBOL(pmac_set_early_video_resume);
2970 
2971 void pmac_call_early_video_resume(void)
2972 {
2973         if (pmac_early_vresume_proc)
2974                 pmac_early_vresume_proc(pmac_early_vresume_data);
2975 }
2976 
2977 /*
2978  * AGP related suspend/resume code
2979  */
2980 
2981 static struct pci_dev *pmac_agp_bridge;
2982 static int (*pmac_agp_suspend)(struct pci_dev *bridge);
2983 static int (*pmac_agp_resume)(struct pci_dev *bridge);
2984 
2985 void pmac_register_agp_pm(struct pci_dev *bridge,
2986                                  int (*suspend)(struct pci_dev *bridge),
2987                                  int (*resume)(struct pci_dev *bridge))
2988 {
2989         if (suspend || resume) {
2990                 pmac_agp_bridge = bridge;
2991                 pmac_agp_suspend = suspend;
2992                 pmac_agp_resume = resume;
2993                 return;
2994         }
2995         if (bridge != pmac_agp_bridge)
2996                 return;
2997         pmac_agp_suspend = pmac_agp_resume = NULL;
2998         return;
2999 }
3000 EXPORT_SYMBOL(pmac_register_agp_pm);
3001 
3002 void pmac_suspend_agp_for_card(struct pci_dev *dev)
3003 {
3004         if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
3005                 return;
3006         if (pmac_agp_bridge->bus != dev->bus)
3007                 return;
3008         pmac_agp_suspend(pmac_agp_bridge);
3009 }
3010 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
3011 
3012 void pmac_resume_agp_for_card(struct pci_dev *dev)
3013 {
3014         if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
3015                 return;
3016         if (pmac_agp_bridge->bus != dev->bus)
3017                 return;
3018         pmac_agp_resume(pmac_agp_bridge);
3019 }
3020 EXPORT_SYMBOL(pmac_resume_agp_for_card);
3021 
3022 int pmac_get_uninorth_variant(void)
3023 {
3024         return uninorth_maj;
3025 }
3026 

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