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/spinlock.h>
25 #include <linux/adb.h>
26 #include <linux/pmu.h>
27 #include <linux/ioport.h>
28 #include <linux/pci.h>
29 #include <asm/sections.h>
30 #include <asm/errno.h>
31 #include <asm/ohare.h>
32 #include <asm/heathrow.h>
33 #include <asm/keylargo.h>
34 #include <asm/uninorth.h>
35 #include <asm/io.h>
36 #include <asm/prom.h>
37 #include <asm/machdep.h>
38 #include <asm/pmac_feature.h>
39 #include <asm/dbdma.h>
40 #include <asm/pci-bridge.h>
41 #include <asm/pmac_low_i2c.h>
42 
43 #undef DEBUG_FEATURE
44 
45 #ifdef DEBUG_FEATURE
46 #define DBG(fmt...) printk(KERN_DEBUG fmt)
47 #else
48 #define DBG(fmt...)
49 #endif
50 
51 #ifdef CONFIG_6xx
52 extern int powersave_lowspeed;
53 #endif
54 
55 extern int powersave_nap;
56 extern struct device_node *k2_skiplist[2];
57 
58 /*
59  * We use a single global lock to protect accesses. Each driver has
60  * to take care of its own locking
61  */
62 DEFINE_SPINLOCK(feature_lock);
63 
64 #define LOCK(flags)	spin_lock_irqsave(&feature_lock, flags);
65 #define UNLOCK(flags)	spin_unlock_irqrestore(&feature_lock, flags);
66 
67 
68 /*
69  * Instance of some macio stuffs
70  */
71 struct macio_chip macio_chips[MAX_MACIO_CHIPS];
72 
73 struct macio_chip *macio_find(struct device_node *child, int type)
74 {
75 	while(child) {
76 		int	i;
77 
78 		for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
79 			if (child == macio_chips[i].of_node &&
80 			    (!type || macio_chips[i].type == type))
81 				return &macio_chips[i];
82 		child = child->parent;
83 	}
84 	return NULL;
85 }
86 EXPORT_SYMBOL_GPL(macio_find);
87 
88 static const char *macio_names[] =
89 {
90 	"Unknown",
91 	"Grand Central",
92 	"OHare",
93 	"OHareII",
94 	"Heathrow",
95 	"Gatwick",
96 	"Paddington",
97 	"Keylargo",
98 	"Pangea",
99 	"Intrepid",
100 	"K2",
101 	"Shasta",
102 };
103 
104 
105 struct device_node *uninorth_node;
106 u32 __iomem *uninorth_base;
107 
108 static u32 uninorth_rev;
109 static int uninorth_maj;
110 static void __iomem *u3_ht_base;
111 
112 /*
113  * For each motherboard family, we have a table of functions pointers
114  * that handle the various features.
115  */
116 
117 typedef long (*feature_call)(struct device_node *node, long param, long value);
118 
119 struct feature_table_entry {
120 	unsigned int	selector;
121 	feature_call	function;
122 };
123 
124 struct pmac_mb_def
125 {
126 	const char*			model_string;
127 	const char*			model_name;
128 	int				model_id;
129 	struct feature_table_entry*	features;
130 	unsigned long			board_flags;
131 };
132 static struct pmac_mb_def pmac_mb;
133 
134 /*
135  * Here are the chip specific feature functions
136  */
137 
138 static inline int simple_feature_tweak(struct device_node *node, int type,
139 				       int reg, u32 mask, int value)
140 {
141 	struct macio_chip*	macio;
142 	unsigned long		flags;
143 
144 	macio = macio_find(node, type);
145 	if (!macio)
146 		return -ENODEV;
147 	LOCK(flags);
148 	if (value)
149 		MACIO_BIS(reg, mask);
150 	else
151 		MACIO_BIC(reg, mask);
152 	(void)MACIO_IN32(reg);
153 	UNLOCK(flags);
154 
155 	return 0;
156 }
157 
158 #ifndef CONFIG_POWER4
159 
160 static long ohare_htw_scc_enable(struct device_node *node, long param,
161 				 long value)
162 {
163 	struct macio_chip*	macio;
164 	unsigned long		chan_mask;
165 	unsigned long		fcr;
166 	unsigned long		flags;
167 	int			htw, trans;
168 	unsigned long		rmask;
169 
170 	macio = macio_find(node, 0);
171 	if (!macio)
172 		return -ENODEV;
173 	if (!strcmp(node->name, "ch-a"))
174 		chan_mask = MACIO_FLAG_SCCA_ON;
175 	else if (!strcmp(node->name, "ch-b"))
176 		chan_mask = MACIO_FLAG_SCCB_ON;
177 	else
178 		return -ENODEV;
179 
180 	htw = (macio->type == macio_heathrow || macio->type == macio_paddington
181 		|| macio->type == macio_gatwick);
182 	/* On these machines, the HRW_SCC_TRANS_EN_N bit mustn't be touched */
183 	trans = (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
184 		 pmac_mb.model_id != PMAC_TYPE_YIKES);
185 	if (value) {
186 #ifdef CONFIG_ADB_PMU
187 		if ((param & 0xfff) == PMAC_SCC_IRDA)
188 			pmu_enable_irled(1);
189 #endif /* CONFIG_ADB_PMU */
190 		LOCK(flags);
191 		fcr = MACIO_IN32(OHARE_FCR);
192 		/* Check if scc cell need enabling */
193 		if (!(fcr & OH_SCC_ENABLE)) {
194 			fcr |= OH_SCC_ENABLE;
195 			if (htw) {
196 				/* Side effect: this will also power up the
197 				 * modem, but it's too messy to figure out on which
198 				 * ports this controls the tranceiver and on which
199 				 * it controls the modem
200 				 */
201 				if (trans)
202 					fcr &= ~HRW_SCC_TRANS_EN_N;
203 				MACIO_OUT32(OHARE_FCR, fcr);
204 				fcr |= (rmask = HRW_RESET_SCC);
205 				MACIO_OUT32(OHARE_FCR, fcr);
206 			} else {
207 				fcr |= (rmask = OH_SCC_RESET);
208 				MACIO_OUT32(OHARE_FCR, fcr);
209 			}
210 			UNLOCK(flags);
211 			(void)MACIO_IN32(OHARE_FCR);
212 			mdelay(15);
213 			LOCK(flags);
214 			fcr &= ~rmask;
215 			MACIO_OUT32(OHARE_FCR, fcr);
216 		}
217 		if (chan_mask & MACIO_FLAG_SCCA_ON)
218 			fcr |= OH_SCCA_IO;
219 		if (chan_mask & MACIO_FLAG_SCCB_ON)
220 			fcr |= OH_SCCB_IO;
221 		MACIO_OUT32(OHARE_FCR, fcr);
222 		macio->flags |= chan_mask;
223 		UNLOCK(flags);
224 		if (param & PMAC_SCC_FLAG_XMON)
225 			macio->flags |= MACIO_FLAG_SCC_LOCKED;
226 	} else {
227 		if (macio->flags & MACIO_FLAG_SCC_LOCKED)
228 			return -EPERM;
229 		LOCK(flags);
230 		fcr = MACIO_IN32(OHARE_FCR);
231 		if (chan_mask & MACIO_FLAG_SCCA_ON)
232 			fcr &= ~OH_SCCA_IO;
233 		if (chan_mask & MACIO_FLAG_SCCB_ON)
234 			fcr &= ~OH_SCCB_IO;
235 		MACIO_OUT32(OHARE_FCR, fcr);
236 		if ((fcr & (OH_SCCA_IO | OH_SCCB_IO)) == 0) {
237 			fcr &= ~OH_SCC_ENABLE;
238 			if (htw && trans)
239 				fcr |= HRW_SCC_TRANS_EN_N;
240 			MACIO_OUT32(OHARE_FCR, fcr);
241 		}
242 		macio->flags &= ~(chan_mask);
243 		UNLOCK(flags);
244 		mdelay(10);
245 #ifdef CONFIG_ADB_PMU
246 		if ((param & 0xfff) == PMAC_SCC_IRDA)
247 			pmu_enable_irled(0);
248 #endif /* CONFIG_ADB_PMU */
249 	}
250 	return 0;
251 }
252 
253 static long ohare_floppy_enable(struct device_node *node, long param,
254 				long value)
255 {
256 	return simple_feature_tweak(node, macio_ohare,
257 		OHARE_FCR, OH_FLOPPY_ENABLE, value);
258 }
259 
260 static long ohare_mesh_enable(struct device_node *node, long param, long value)
261 {
262 	return simple_feature_tweak(node, macio_ohare,
263 		OHARE_FCR, OH_MESH_ENABLE, value);
264 }
265 
266 static long ohare_ide_enable(struct device_node *node, long param, long value)
267 {
268 	switch(param) {
269 	case 0:
270 		/* For some reason, setting the bit in set_initial_features()
271 		 * doesn't stick. I'm still investigating... --BenH.
272 		 */
273 		if (value)
274 			simple_feature_tweak(node, macio_ohare,
275 				OHARE_FCR, OH_IOBUS_ENABLE, 1);
276 		return simple_feature_tweak(node, macio_ohare,
277 			OHARE_FCR, OH_IDE0_ENABLE, value);
278 	case 1:
279 		return simple_feature_tweak(node, macio_ohare,
280 			OHARE_FCR, OH_BAY_IDE_ENABLE, value);
281 	default:
282 		return -ENODEV;
283 	}
284 }
285 
286 static long ohare_ide_reset(struct device_node *node, long param, long value)
287 {
288 	switch(param) {
289 	case 0:
290 		return simple_feature_tweak(node, macio_ohare,
291 			OHARE_FCR, OH_IDE0_RESET_N, !value);
292 	case 1:
293 		return simple_feature_tweak(node, macio_ohare,
294 			OHARE_FCR, OH_IDE1_RESET_N, !value);
295 	default:
296 		return -ENODEV;
297 	}
298 }
299 
300 static long ohare_sleep_state(struct device_node *node, long param, long value)
301 {
302 	struct macio_chip*	macio = &macio_chips[0];
303 
304 	if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
305 		return -EPERM;
306 	if (value == 1) {
307 		MACIO_BIC(OHARE_FCR, OH_IOBUS_ENABLE);
308 	} else if (value == 0) {
309 		MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
310 	}
311 
312 	return 0;
313 }
314 
315 static long heathrow_modem_enable(struct device_node *node, long param,
316 				  long value)
317 {
318 	struct macio_chip*	macio;
319 	u8			gpio;
320 	unsigned long		flags;
321 
322 	macio = macio_find(node, macio_unknown);
323 	if (!macio)
324 		return -ENODEV;
325 	gpio = MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1;
326 	if (!value) {
327 		LOCK(flags);
328 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
329 		UNLOCK(flags);
330 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
331 		mdelay(250);
332 	}
333 	if (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
334 	    pmac_mb.model_id != PMAC_TYPE_YIKES) {
335 		LOCK(flags);
336 		if (value)
337 			MACIO_BIC(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
338 		else
339 			MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
340 		UNLOCK(flags);
341 		(void)MACIO_IN32(HEATHROW_FCR);
342 		mdelay(250);
343 	}
344 	if (value) {
345 		LOCK(flags);
346 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
347 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
348 		UNLOCK(flags); mdelay(250); LOCK(flags);
349 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
350 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
351 		UNLOCK(flags); mdelay(250); LOCK(flags);
352 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
353 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
354 		UNLOCK(flags); mdelay(250);
355 	}
356 	return 0;
357 }
358 
359 static long heathrow_floppy_enable(struct device_node *node, long param,
360 				   long value)
361 {
362 	return simple_feature_tweak(node, macio_unknown,
363 		HEATHROW_FCR,
364 		HRW_SWIM_ENABLE|HRW_BAY_FLOPPY_ENABLE,
365 		value);
366 }
367 
368 static long heathrow_mesh_enable(struct device_node *node, long param,
369 				 long value)
370 {
371 	struct macio_chip*	macio;
372 	unsigned long		flags;
373 
374 	macio = macio_find(node, macio_unknown);
375 	if (!macio)
376 		return -ENODEV;
377 	LOCK(flags);
378 	/* Set clear mesh cell enable */
379 	if (value)
380 		MACIO_BIS(HEATHROW_FCR, HRW_MESH_ENABLE);
381 	else
382 		MACIO_BIC(HEATHROW_FCR, HRW_MESH_ENABLE);
383 	(void)MACIO_IN32(HEATHROW_FCR);
384 	udelay(10);
385 	/* Set/Clear termination power */
386 	if (value)
387 		MACIO_BIC(HEATHROW_MBCR, 0x04000000);
388 	else
389 		MACIO_BIS(HEATHROW_MBCR, 0x04000000);
390 	(void)MACIO_IN32(HEATHROW_MBCR);
391 	udelay(10);
392 	UNLOCK(flags);
393 
394 	return 0;
395 }
396 
397 static long heathrow_ide_enable(struct device_node *node, long param,
398 				long value)
399 {
400 	switch(param) {
401 	case 0:
402 		return simple_feature_tweak(node, macio_unknown,
403 			HEATHROW_FCR, HRW_IDE0_ENABLE, value);
404 	case 1:
405 		return simple_feature_tweak(node, macio_unknown,
406 			HEATHROW_FCR, HRW_BAY_IDE_ENABLE, value);
407 	default:
408 		return -ENODEV;
409 	}
410 }
411 
412 static long heathrow_ide_reset(struct device_node *node, long param,
413 			       long value)
414 {
415 	switch(param) {
416 	case 0:
417 		return simple_feature_tweak(node, macio_unknown,
418 			HEATHROW_FCR, HRW_IDE0_RESET_N, !value);
419 	case 1:
420 		return simple_feature_tweak(node, macio_unknown,
421 			HEATHROW_FCR, HRW_IDE1_RESET_N, !value);
422 	default:
423 		return -ENODEV;
424 	}
425 }
426 
427 static long heathrow_bmac_enable(struct device_node *node, long param,
428 				 long value)
429 {
430 	struct macio_chip*	macio;
431 	unsigned long		flags;
432 
433 	macio = macio_find(node, 0);
434 	if (!macio)
435 		return -ENODEV;
436 	if (value) {
437 		LOCK(flags);
438 		MACIO_BIS(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
439 		MACIO_BIS(HEATHROW_FCR, HRW_BMAC_RESET);
440 		UNLOCK(flags);
441 		(void)MACIO_IN32(HEATHROW_FCR);
442 		mdelay(10);
443 		LOCK(flags);
444 		MACIO_BIC(HEATHROW_FCR, HRW_BMAC_RESET);
445 		UNLOCK(flags);
446 		(void)MACIO_IN32(HEATHROW_FCR);
447 		mdelay(10);
448 	} else {
449 		LOCK(flags);
450 		MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
451 		UNLOCK(flags);
452 	}
453 	return 0;
454 }
455 
456 static long heathrow_sound_enable(struct device_node *node, long param,
457 				  long value)
458 {
459 	struct macio_chip*	macio;
460 	unsigned long		flags;
461 
462 	/* B&W G3 and Yikes don't support that properly (the
463 	 * sound appear to never come back after beeing shut down).
464 	 */
465 	if (pmac_mb.model_id == PMAC_TYPE_YOSEMITE ||
466 	    pmac_mb.model_id == PMAC_TYPE_YIKES)
467 		return 0;
468 
469 	macio = macio_find(node, 0);
470 	if (!macio)
471 		return -ENODEV;
472 	if (value) {
473 		LOCK(flags);
474 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
475 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
476 		UNLOCK(flags);
477 		(void)MACIO_IN32(HEATHROW_FCR);
478 	} else {
479 		LOCK(flags);
480 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
481 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
482 		UNLOCK(flags);
483 	}
484 	return 0;
485 }
486 
487 static u32 save_fcr[6];
488 static u32 save_mbcr;
489 static struct dbdma_regs save_dbdma[13];
490 static struct dbdma_regs save_alt_dbdma[13];
491 
492 static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
493 {
494 	int i;
495 
496 	/* Save state & config of DBDMA channels */
497 	for (i = 0; i < 13; i++) {
498 		volatile struct dbdma_regs __iomem * chan = (void __iomem *)
499 			(macio->base + ((0x8000+i*0x100)>>2));
500 		save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
501 		save[i].cmdptr = in_le32(&chan->cmdptr);
502 		save[i].intr_sel = in_le32(&chan->intr_sel);
503 		save[i].br_sel = in_le32(&chan->br_sel);
504 		save[i].wait_sel = in_le32(&chan->wait_sel);
505 	}
506 }
507 
508 static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
509 {
510 	int i;
511 
512 	/* Save state & config of DBDMA channels */
513 	for (i = 0; i < 13; i++) {
514 		volatile struct dbdma_regs __iomem * chan = (void __iomem *)
515 			(macio->base + ((0x8000+i*0x100)>>2));
516 		out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
517 		while (in_le32(&chan->status) & ACTIVE)
518 			mb();
519 		out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
520 		out_le32(&chan->cmdptr, save[i].cmdptr);
521 		out_le32(&chan->intr_sel, save[i].intr_sel);
522 		out_le32(&chan->br_sel, save[i].br_sel);
523 		out_le32(&chan->wait_sel, save[i].wait_sel);
524 	}
525 }
526 
527 static void heathrow_sleep(struct macio_chip *macio, int secondary)
528 {
529 	if (secondary) {
530 		dbdma_save(macio, save_alt_dbdma);
531 		save_fcr[2] = MACIO_IN32(0x38);
532 		save_fcr[3] = MACIO_IN32(0x3c);
533 	} else {
534 		dbdma_save(macio, save_dbdma);
535 		save_fcr[0] = MACIO_IN32(0x38);
536 		save_fcr[1] = MACIO_IN32(0x3c);
537 		save_mbcr = MACIO_IN32(0x34);
538 		/* Make sure sound is shut down */
539 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
540 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
541 		/* This seems to be necessary as well or the fan
542 		 * keeps coming up and battery drains fast */
543 		MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
544 		MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
545 		/* Make sure eth is down even if module or sleep
546 		 * won't work properly */
547 		MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
548 	}
549 	/* Make sure modem is shut down */
550 	MACIO_OUT8(HRW_GPIO_MODEM_RESET,
551 		MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
552 	MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
553 	MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
554 
555 	/* Let things settle */
556 	(void)MACIO_IN32(HEATHROW_FCR);
557 }
558 
559 static void heathrow_wakeup(struct macio_chip *macio, int secondary)
560 {
561 	if (secondary) {
562 		MACIO_OUT32(0x38, save_fcr[2]);
563 		(void)MACIO_IN32(0x38);
564 		mdelay(1);
565 		MACIO_OUT32(0x3c, save_fcr[3]);
566 		(void)MACIO_IN32(0x38);
567 		mdelay(10);
568 		dbdma_restore(macio, save_alt_dbdma);
569 	} else {
570 		MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
571 		(void)MACIO_IN32(0x38);
572 		mdelay(1);
573 		MACIO_OUT32(0x3c, save_fcr[1]);
574 		(void)MACIO_IN32(0x38);
575 		mdelay(1);
576 		MACIO_OUT32(0x34, save_mbcr);
577 		(void)MACIO_IN32(0x38);
578 		mdelay(10);
579 		dbdma_restore(macio, save_dbdma);
580 	}
581 }
582 
583 static long heathrow_sleep_state(struct device_node *node, long param,
584 				 long value)
585 {
586 	if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
587 		return -EPERM;
588 	if (value == 1) {
589 		if (macio_chips[1].type == macio_gatwick)
590 			heathrow_sleep(&macio_chips[0], 1);
591 		heathrow_sleep(&macio_chips[0], 0);
592 	} else if (value == 0) {
593 		heathrow_wakeup(&macio_chips[0], 0);
594 		if (macio_chips[1].type == macio_gatwick)
595 			heathrow_wakeup(&macio_chips[0], 1);
596 	}
597 	return 0;
598 }
599 
600 static long core99_scc_enable(struct device_node *node, long param, long value)
601 {
602 	struct macio_chip*	macio;
603 	unsigned long		flags;
604 	unsigned long		chan_mask;
605 	u32			fcr;
606 
607 	macio = macio_find(node, 0);
608 	if (!macio)
609 		return -ENODEV;
610 	if (!strcmp(node->name, "ch-a"))
611 		chan_mask = MACIO_FLAG_SCCA_ON;
612 	else if (!strcmp(node->name, "ch-b"))
613 		chan_mask = MACIO_FLAG_SCCB_ON;
614 	else
615 		return -ENODEV;
616 
617 	if (value) {
618 		int need_reset_scc = 0;
619 		int need_reset_irda = 0;
620 
621 		LOCK(flags);
622 		fcr = MACIO_IN32(KEYLARGO_FCR0);
623 		/* Check if scc cell need enabling */
624 		if (!(fcr & KL0_SCC_CELL_ENABLE)) {
625 			fcr |= KL0_SCC_CELL_ENABLE;
626 			need_reset_scc = 1;
627 		}
628 		if (chan_mask & MACIO_FLAG_SCCA_ON) {
629 			fcr |= KL0_SCCA_ENABLE;
630 			/* Don't enable line drivers for I2S modem */
631 			if ((param & 0xfff) == PMAC_SCC_I2S1)
632 				fcr &= ~KL0_SCC_A_INTF_ENABLE;
633 			else
634 				fcr |= KL0_SCC_A_INTF_ENABLE;
635 		}
636 		if (chan_mask & MACIO_FLAG_SCCB_ON) {
637 			fcr |= KL0_SCCB_ENABLE;
638 			/* Perform irda specific inits */
639 			if ((param & 0xfff) == PMAC_SCC_IRDA) {
640 				fcr &= ~KL0_SCC_B_INTF_ENABLE;
641 				fcr |= KL0_IRDA_ENABLE;
642 				fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
643 				fcr |= KL0_IRDA_SOURCE1_SEL;
644 				fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
645 				fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
646 				need_reset_irda = 1;
647 			} else
648 				fcr |= KL0_SCC_B_INTF_ENABLE;
649 		}
650 		MACIO_OUT32(KEYLARGO_FCR0, fcr);
651 		macio->flags |= chan_mask;
652 		if (need_reset_scc)  {
653 			MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
654 			(void)MACIO_IN32(KEYLARGO_FCR0);
655 			UNLOCK(flags);
656 			mdelay(15);
657 			LOCK(flags);
658 			MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
659 		}
660 		if (need_reset_irda)  {
661 			MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
662 			(void)MACIO_IN32(KEYLARGO_FCR0);
663 			UNLOCK(flags);
664 			mdelay(15);
665 			LOCK(flags);
666 			MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
667 		}
668 		UNLOCK(flags);
669 		if (param & PMAC_SCC_FLAG_XMON)
670 			macio->flags |= MACIO_FLAG_SCC_LOCKED;
671 	} else {
672 		if (macio->flags & MACIO_FLAG_SCC_LOCKED)
673 			return -EPERM;
674 		LOCK(flags);
675 		fcr = MACIO_IN32(KEYLARGO_FCR0);
676 		if (chan_mask & MACIO_FLAG_SCCA_ON)
677 			fcr &= ~KL0_SCCA_ENABLE;
678 		if (chan_mask & MACIO_FLAG_SCCB_ON) {
679 			fcr &= ~KL0_SCCB_ENABLE;
680 			/* Perform irda specific clears */
681 			if ((param & 0xfff) == PMAC_SCC_IRDA) {
682 				fcr &= ~KL0_IRDA_ENABLE;
683 				fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
684 				fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
685 				fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
686 			}
687 		}
688 		MACIO_OUT32(KEYLARGO_FCR0, fcr);
689 		if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
690 			fcr &= ~KL0_SCC_CELL_ENABLE;
691 			MACIO_OUT32(KEYLARGO_FCR0, fcr);
692 		}
693 		macio->flags &= ~(chan_mask);
694 		UNLOCK(flags);
695 		mdelay(10);
696 	}
697 	return 0;
698 }
699 
700 static long
701 core99_modem_enable(struct device_node *node, long param, long value)
702 {
703 	struct macio_chip*	macio;
704 	u8			gpio;
705 	unsigned long		flags;
706 
707 	/* Hack for internal USB modem */
708 	if (node == NULL) {
709 		if (macio_chips[0].type != macio_keylargo)
710 			return -ENODEV;
711 		node = macio_chips[0].of_node;
712 	}
713 	macio = macio_find(node, 0);
714 	if (!macio)
715 		return -ENODEV;
716 	gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
717 	gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
718 	gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
719 
720 	if (!value) {
721 		LOCK(flags);
722 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
723 		UNLOCK(flags);
724 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
725 		mdelay(250);
726 	}
727 	LOCK(flags);
728 	if (value) {
729 		MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
730 		UNLOCK(flags);
731 		(void)MACIO_IN32(KEYLARGO_FCR2);
732 		mdelay(250);
733 	} else {
734 		MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
735 		UNLOCK(flags);
736 	}
737 	if (value) {
738 		LOCK(flags);
739 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
740 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
741 		UNLOCK(flags); mdelay(250); LOCK(flags);
742 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
743 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
744 		UNLOCK(flags); mdelay(250); LOCK(flags);
745 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
746 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
747 		UNLOCK(flags); mdelay(250);
748 	}
749 	return 0;
750 }
751 
752 static long
753 pangea_modem_enable(struct device_node *node, long param, long value)
754 {
755 	struct macio_chip*	macio;
756 	u8			gpio;
757 	unsigned long		flags;
758 
759 	/* Hack for internal USB modem */
760 	if (node == NULL) {
761 		if (macio_chips[0].type != macio_pangea &&
762 		    macio_chips[0].type != macio_intrepid)
763 			return -ENODEV;
764 		node = macio_chips[0].of_node;
765 	}
766 	macio = macio_find(node, 0);
767 	if (!macio)
768 		return -ENODEV;
769 	gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
770 	gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
771 	gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
772 
773 	if (!value) {
774 		LOCK(flags);
775 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
776 		UNLOCK(flags);
777 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
778 		mdelay(250);
779 	}
780 	LOCK(flags);
781 	if (value) {
782 		MACIO_OUT8(KL_GPIO_MODEM_POWER,
783 			KEYLARGO_GPIO_OUTPUT_ENABLE);
784 		UNLOCK(flags);
785 		(void)MACIO_IN32(KEYLARGO_FCR2);
786 		mdelay(250);
787 	} else {
788 		MACIO_OUT8(KL_GPIO_MODEM_POWER,
789 			KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
790 		UNLOCK(flags);
791 	}
792 	if (value) {
793 		LOCK(flags);
794 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
795 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
796 		UNLOCK(flags); mdelay(250); LOCK(flags);
797 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
798 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
799 		UNLOCK(flags); mdelay(250); LOCK(flags);
800 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
801 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
802 		UNLOCK(flags); mdelay(250);
803 	}
804 	return 0;
805 }
806 
807 static long
808 core99_ata100_enable(struct device_node *node, long value)
809 {
810 	unsigned long flags;
811 	struct pci_dev *pdev = NULL;
812 	u8 pbus, pid;
813 	int rc;
814 
815 	if (uninorth_rev < 0x24)
816 		return -ENODEV;
817 
818 	LOCK(flags);
819 	if (value)
820 		UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
821 	else
822 		UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
823 	(void)UN_IN(UNI_N_CLOCK_CNTL);
824 	UNLOCK(flags);
825 	udelay(20);
826 
827 	if (value) {
828 		if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
829 			pdev = pci_get_bus_and_slot(pbus, pid);
830 		if (pdev == NULL)
831 			return 0;
832 		rc = pci_enable_device(pdev);
833 		if (rc == 0)
834 			pci_set_master(pdev);
835 		pci_dev_put(pdev);
836 		if (rc)
837 			return rc;
838 	}
839 	return 0;
840 }
841 
842 static long
843 core99_ide_enable(struct device_node *node, long param, long value)
844 {
845 	/* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
846 	 * based ata-100
847 	 */
848 	switch(param) {
849 	    case 0:
850 		return simple_feature_tweak(node, macio_unknown,
851 			KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
852 	    case 1:
853 		return simple_feature_tweak(node, macio_unknown,
854 			KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
855 	    case 2:
856 		return simple_feature_tweak(node, macio_unknown,
857 			KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
858 	    case 3:
859 		return core99_ata100_enable(node, value);
860 	    default:
861 		return -ENODEV;
862 	}
863 }
864 
865 static long
866 core99_ide_reset(struct device_node *node, long param, long value)
867 {
868 	switch(param) {
869 	    case 0:
870 		return simple_feature_tweak(node, macio_unknown,
871 			KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
872 	    case 1:
873 		return simple_feature_tweak(node, macio_unknown,
874 			KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
875 	    case 2:
876 		return simple_feature_tweak(node, macio_unknown,
877 			KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
878 	    default:
879 		return -ENODEV;
880 	}
881 }
882 
883 static long
884 core99_gmac_enable(struct device_node *node, long param, long value)
885 {
886 	unsigned long flags;
887 
888 	LOCK(flags);
889 	if (value)
890 		UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
891 	else
892 		UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
893 	(void)UN_IN(UNI_N_CLOCK_CNTL);
894 	UNLOCK(flags);
895 	udelay(20);
896 
897 	return 0;
898 }
899 
900 static long
901 core99_gmac_phy_reset(struct device_node *node, long param, long value)
902 {
903 	unsigned long flags;
904 	struct macio_chip *macio;
905 
906 	macio = &macio_chips[0];
907 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
908 	    macio->type != macio_intrepid)
909 		return -ENODEV;
910 
911 	LOCK(flags);
912 	MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
913 	(void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
914 	UNLOCK(flags);
915 	mdelay(10);
916 	LOCK(flags);
917 	MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
918 		KEYLARGO_GPIO_OUTOUT_DATA);
919 	UNLOCK(flags);
920 	mdelay(10);
921 
922 	return 0;
923 }
924 
925 static long
926 core99_sound_chip_enable(struct device_node *node, long param, long value)
927 {
928 	struct macio_chip*	macio;
929 	unsigned long		flags;
930 
931 	macio = macio_find(node, 0);
932 	if (!macio)
933 		return -ENODEV;
934 
935 	/* Do a better probe code, screamer G4 desktops &
936 	 * iMacs can do that too, add a recalibrate  in
937 	 * the driver as well
938 	 */
939 	if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
940 	    pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
941 		LOCK(flags);
942 		if (value)
943 			MACIO_OUT8(KL_GPIO_SOUND_POWER,
944 				KEYLARGO_GPIO_OUTPUT_ENABLE |
945 				KEYLARGO_GPIO_OUTOUT_DATA);
946 		else
947 			MACIO_OUT8(KL_GPIO_SOUND_POWER,
948 				KEYLARGO_GPIO_OUTPUT_ENABLE);
949 		(void)MACIO_IN8(KL_GPIO_SOUND_POWER);
950 		UNLOCK(flags);
951 	}
952 	return 0;
953 }
954 
955 static long
956 core99_airport_enable(struct device_node *node, long param, long value)
957 {
958 	struct macio_chip*	macio;
959 	unsigned long		flags;
960 	int			state;
961 
962 	macio = macio_find(node, 0);
963 	if (!macio)
964 		return -ENODEV;
965 
966 	/* Hint: we allow passing of macio itself for the sake of the
967 	 * sleep code
968 	 */
969 	if (node != macio->of_node &&
970 	    (!node->parent || node->parent != macio->of_node))
971 		return -ENODEV;
972 	state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
973 	if (value == state)
974 		return 0;
975 	if (value) {
976 		/* This code is a reproduction of OF enable-cardslot
977 		 * and init-wireless methods, slightly hacked until
978 		 * I got it working.
979 		 */
980 		LOCK(flags);
981 		MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
982 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
983 		UNLOCK(flags);
984 		mdelay(10);
985 		LOCK(flags);
986 		MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
987 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
988 		UNLOCK(flags);
989 
990 		mdelay(10);
991 
992 		LOCK(flags);
993 		MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
994 		(void)MACIO_IN32(KEYLARGO_FCR2);
995 		udelay(10);
996 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
997 		(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
998 		udelay(10);
999 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
1000 		(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
1001 		udelay(10);
1002 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
1003 		(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
1004 		udelay(10);
1005 		MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
1006 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
1007 		udelay(10);
1008 		MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
1009 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
1010 		UNLOCK(flags);
1011 		udelay(10);
1012 		MACIO_OUT32(0x1c000, 0);
1013 		mdelay(1);
1014 		MACIO_OUT8(0x1a3e0, 0x41);
1015 		(void)MACIO_IN8(0x1a3e0);
1016 		udelay(10);
1017 		LOCK(flags);
1018 		MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
1019 		(void)MACIO_IN32(KEYLARGO_FCR2);
1020 		UNLOCK(flags);
1021 		mdelay(100);
1022 
1023 		macio->flags |= MACIO_FLAG_AIRPORT_ON;
1024 	} else {
1025 		LOCK(flags);
1026 		MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1027 		(void)MACIO_IN32(KEYLARGO_FCR2);
1028 		MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
1029 		MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
1030 		MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
1031 		MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
1032 		MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
1033 		(void)MACIO_IN8(KL_GPIO_AIRPORT_4);
1034 		UNLOCK(flags);
1035 
1036 		macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
1037 	}
1038 	return 0;
1039 }
1040 
1041 #ifdef CONFIG_SMP
1042 static long
1043 core99_reset_cpu(struct device_node *node, long param, long value)
1044 {
1045 	unsigned int reset_io = 0;
1046 	unsigned long flags;
1047 	struct macio_chip *macio;
1048 	struct device_node *np;
1049 	struct device_node *cpus;
1050 	const int dflt_reset_lines[] = {	KL_GPIO_RESET_CPU0,
1051 						KL_GPIO_RESET_CPU1,
1052 						KL_GPIO_RESET_CPU2,
1053 						KL_GPIO_RESET_CPU3 };
1054 
1055 	macio = &macio_chips[0];
1056 	if (macio->type != macio_keylargo)
1057 		return -ENODEV;
1058 
1059 	cpus = of_find_node_by_path("/cpus");
1060 	if (cpus == NULL)
1061 		return -ENODEV;
1062 	for (np = cpus->child; np != NULL; np = np->sibling) {
1063 		const u32 *num = of_get_property(np, "reg", NULL);
1064 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
1065 		if (num == NULL || rst == NULL)
1066 			continue;
1067 		if (param == *num) {
1068 			reset_io = *rst;
1069 			break;
1070 		}
1071 	}
1072 	of_node_put(cpus);
1073 	if (np == NULL || reset_io == 0)
1074 		reset_io = dflt_reset_lines[param];
1075 
1076 	LOCK(flags);
1077 	MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1078 	(void)MACIO_IN8(reset_io);
1079 	udelay(1);
1080 	MACIO_OUT8(reset_io, 0);
1081 	(void)MACIO_IN8(reset_io);
1082 	UNLOCK(flags);
1083 
1084 	return 0;
1085 }
1086 #endif /* CONFIG_SMP */
1087 
1088 static long
1089 core99_usb_enable(struct device_node *node, long param, long value)
1090 {
1091 	struct macio_chip *macio;
1092 	unsigned long flags;
1093 	const char *prop;
1094 	int number;
1095 	u32 reg;
1096 
1097 	macio = &macio_chips[0];
1098 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1099 	    macio->type != macio_intrepid)
1100 		return -ENODEV;
1101 
1102 	prop = of_get_property(node, "AAPL,clock-id", NULL);
1103 	if (!prop)
1104 		return -ENODEV;
1105 	if (strncmp(prop, "usb0u048", 8) == 0)
1106 		number = 0;
1107 	else if (strncmp(prop, "usb1u148", 8) == 0)
1108 		number = 2;
1109 	else if (strncmp(prop, "usb2u248", 8) == 0)
1110 		number = 4;
1111 	else
1112 		return -ENODEV;
1113 
1114 	/* Sorry for the brute-force locking, but this is only used during
1115 	 * sleep and the timing seem to be critical
1116 	 */
1117 	LOCK(flags);
1118 	if (value) {
1119 		/* Turn ON */
1120 		if (number == 0) {
1121 			MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1122 			(void)MACIO_IN32(KEYLARGO_FCR0);
1123 			UNLOCK(flags);
1124 			mdelay(1);
1125 			LOCK(flags);
1126 			MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1127 		} else if (number == 2) {
1128 			MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1129 			UNLOCK(flags);
1130 			(void)MACIO_IN32(KEYLARGO_FCR0);
1131 			mdelay(1);
1132 			LOCK(flags);
1133 			MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1134 		} else if (number == 4) {
1135 			MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1136 			UNLOCK(flags);
1137 			(void)MACIO_IN32(KEYLARGO_FCR1);
1138 			mdelay(1);
1139 			LOCK(flags);
1140 			MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
1141 		}
1142 		if (number < 4) {
1143 			reg = MACIO_IN32(KEYLARGO_FCR4);
1144 			reg &=	~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1145 				KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
1146 			reg &=	~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1147 				KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
1148 			MACIO_OUT32(KEYLARGO_FCR4, reg);
1149 			(void)MACIO_IN32(KEYLARGO_FCR4);
1150 			udelay(10);
1151 		} else {
1152 			reg = MACIO_IN32(KEYLARGO_FCR3);
1153 			reg &=	~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1154 				KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
1155 			reg &=	~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1156 				KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
1157 			MACIO_OUT32(KEYLARGO_FCR3, reg);
1158 			(void)MACIO_IN32(KEYLARGO_FCR3);
1159 			udelay(10);
1160 		}
1161 		if (macio->type == macio_intrepid) {
1162 			/* wait for clock stopped bits to clear */
1163 			u32 test0 = 0, test1 = 0;
1164 			u32 status0, status1;
1165 			int timeout = 1000;
1166 
1167 			UNLOCK(flags);
1168 			switch (number) {
1169 			case 0:
1170 				test0 = UNI_N_CLOCK_STOPPED_USB0;
1171 				test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
1172 				break;
1173 			case 2:
1174 				test0 = UNI_N_CLOCK_STOPPED_USB1;
1175 				test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
1176 				break;
1177 			case 4:
1178 				test0 = UNI_N_CLOCK_STOPPED_USB2;
1179 				test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
1180 				break;
1181 			}
1182 			do {
1183 				if (--timeout <= 0) {
1184 					printk(KERN_ERR "core99_usb_enable: "
1185 					       "Timeout waiting for clocks\n");
1186 					break;
1187 				}
1188 				mdelay(1);
1189 				status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
1190 				status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
1191 			} while ((status0 & test0) | (status1 & test1));
1192 			LOCK(flags);
1193 		}
1194 	} else {
1195 		/* Turn OFF */
1196 		if (number < 4) {
1197 			reg = MACIO_IN32(KEYLARGO_FCR4);
1198 			reg |=	KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1199 				KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
1200 			reg |=	KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1201 				KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
1202 			MACIO_OUT32(KEYLARGO_FCR4, reg);
1203 			(void)MACIO_IN32(KEYLARGO_FCR4);
1204 			udelay(1);
1205 		} else {
1206 			reg = MACIO_IN32(KEYLARGO_FCR3);
1207 			reg |=	KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1208 				KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
1209 			reg |=	KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1210 				KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
1211 			MACIO_OUT32(KEYLARGO_FCR3, reg);
1212 			(void)MACIO_IN32(KEYLARGO_FCR3);
1213 			udelay(1);
1214 		}
1215 		if (number == 0) {
1216 			if (macio->type != macio_intrepid)
1217 				MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1218 			(void)MACIO_IN32(KEYLARGO_FCR0);
1219 			udelay(1);
1220 			MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1221 			(void)MACIO_IN32(KEYLARGO_FCR0);
1222 		} else if (number == 2) {
1223 			if (macio->type != macio_intrepid)
1224 				MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1225 			(void)MACIO_IN32(KEYLARGO_FCR0);
1226 			udelay(1);
1227 			MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1228 			(void)MACIO_IN32(KEYLARGO_FCR0);
1229 		} else if (number == 4) {
1230 			udelay(1);
1231 			MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1232 			(void)MACIO_IN32(KEYLARGO_FCR1);
1233 		}
1234 		udelay(1);
1235 	}
1236 	UNLOCK(flags);
1237 
1238 	return 0;
1239 }
1240 
1241 static long
1242 core99_firewire_enable(struct device_node *node, long param, long value)
1243 {
1244 	unsigned long flags;
1245 	struct macio_chip *macio;
1246 
1247 	macio = &macio_chips[0];
1248 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1249 	    macio->type != macio_intrepid)
1250 		return -ENODEV;
1251 	if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1252 		return -ENODEV;
1253 
1254 	LOCK(flags);
1255 	if (value) {
1256 		UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1257 		(void)UN_IN(UNI_N_CLOCK_CNTL);
1258 	} else {
1259 		UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1260 		(void)UN_IN(UNI_N_CLOCK_CNTL);
1261 	}
1262 	UNLOCK(flags);
1263 	mdelay(1);
1264 
1265 	return 0;
1266 }
1267 
1268 static long
1269 core99_firewire_cable_power(struct device_node *node, long param, long value)
1270 {
1271 	unsigned long flags;
1272 	struct macio_chip *macio;
1273 
1274 	/* Trick: we allow NULL node */
1275 	if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
1276 		return -ENODEV;
1277 	macio = &macio_chips[0];
1278 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1279 	    macio->type != macio_intrepid)
1280 		return -ENODEV;
1281 	if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1282 		return -ENODEV;
1283 
1284 	LOCK(flags);
1285 	if (value) {
1286 		MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
1287 		MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
1288 		udelay(10);
1289 	} else {
1290 		MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
1291 		MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
1292 	}
1293 	UNLOCK(flags);
1294 	mdelay(1);
1295 
1296 	return 0;
1297 }
1298 
1299 static long
1300 intrepid_aack_delay_enable(struct device_node *node, long param, long value)
1301 {
1302 	unsigned long flags;
1303 
1304 	if (uninorth_rev < 0xd2)
1305 		return -ENODEV;
1306 
1307 	LOCK(flags);
1308 	if (param)
1309 		UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1310 	else
1311 		UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1312 	UNLOCK(flags);
1313 
1314 	return 0;
1315 }
1316 
1317 
1318 #endif /* CONFIG_POWER4 */
1319 
1320 static long
1321 core99_read_gpio(struct device_node *node, long param, long value)
1322 {
1323 	struct macio_chip *macio = &macio_chips[0];
1324 
1325 	return MACIO_IN8(param);
1326 }
1327 
1328 
1329 static long
1330 core99_write_gpio(struct device_node *node, long param, long value)
1331 {
1332 	struct macio_chip *macio = &macio_chips[0];
1333 
1334 	MACIO_OUT8(param, (u8)(value & 0xff));
1335 	return 0;
1336 }
1337 
1338 #ifdef CONFIG_POWER4
1339 static long g5_gmac_enable(struct device_node *node, long param, long value)
1340 {
1341 	struct macio_chip *macio = &macio_chips[0];
1342 	unsigned long flags;
1343 
1344 	if (node == NULL)
1345 		return -ENODEV;
1346 
1347 	LOCK(flags);
1348 	if (value) {
1349 		MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1350 		mb();
1351 		k2_skiplist[0] = NULL;
1352 	} else {
1353 		k2_skiplist[0] = node;
1354 		mb();
1355 		MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1356 	}
1357 
1358 	UNLOCK(flags);
1359 	mdelay(1);
1360 
1361 	return 0;
1362 }
1363 
1364 static long g5_fw_enable(struct device_node *node, long param, long value)
1365 {
1366 	struct macio_chip *macio = &macio_chips[0];
1367 	unsigned long flags;
1368 
1369 	if (node == NULL)
1370 		return -ENODEV;
1371 
1372 	LOCK(flags);
1373 	if (value) {
1374 		MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1375 		mb();
1376 		k2_skiplist[1] = NULL;
1377 	} else {
1378 		k2_skiplist[1] = node;
1379 		mb();
1380 		MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1381 	}
1382 
1383 	UNLOCK(flags);
1384 	mdelay(1);
1385 
1386 	return 0;
1387 }
1388 
1389 static long g5_mpic_enable(struct device_node *node, long param, long value)
1390 {
1391 	unsigned long flags;
1392 	struct device_node *parent = of_get_parent(node);
1393 	int is_u3;
1394 
1395 	if (parent == NULL)
1396 		return 0;
1397 	is_u3 = strcmp(parent->name, "u3") == 0 ||
1398 		strcmp(parent->name, "u4") == 0;
1399 	of_node_put(parent);
1400 	if (!is_u3)
1401 		return 0;
1402 
1403 	LOCK(flags);
1404 	UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
1405 	UNLOCK(flags);
1406 
1407 	return 0;
1408 }
1409 
1410 static long g5_eth_phy_reset(struct device_node *node, long param, long value)
1411 {
1412 	struct macio_chip *macio = &macio_chips[0];
1413 	struct device_node *phy;
1414 	int need_reset;
1415 
1416 	/*
1417 	 * We must not reset the combo PHYs, only the BCM5221 found in
1418 	 * the iMac G5.
1419 	 */
1420 	phy = of_get_next_child(node, NULL);
1421 	if (!phy)
1422 		return -ENODEV;
1423 	need_reset = of_device_is_compatible(phy, "B5221");
1424 	of_node_put(phy);
1425 	if (!need_reset)
1426 		return 0;
1427 
1428 	/* PHY reset is GPIO 29, not in device-tree unfortunately */
1429 	MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
1430 		   KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
1431 	/* Thankfully, this is now always called at a time when we can
1432 	 * schedule by sungem.
1433 	 */
1434 	msleep(10);
1435 	MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
1436 
1437 	return 0;
1438 }
1439 
1440 static long g5_i2s_enable(struct device_node *node, long param, long value)
1441 {
1442 	/* Very crude implementation for now */
1443 	struct macio_chip *macio = &macio_chips[0];
1444 	unsigned long flags;
1445 	int cell;
1446 	u32 fcrs[3][3] = {
1447 		{ 0,
1448 		  K2_FCR1_I2S0_CELL_ENABLE |
1449 		  K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE,
1450 		  KL3_I2S0_CLK18_ENABLE
1451 		},
1452 		{ KL0_SCC_A_INTF_ENABLE,
1453 		  K2_FCR1_I2S1_CELL_ENABLE |
1454 		  K2_FCR1_I2S1_CLK_ENABLE_BIT | K2_FCR1_I2S1_ENABLE,
1455 		  KL3_I2S1_CLK18_ENABLE
1456 		},
1457 		{ KL0_SCC_B_INTF_ENABLE,
1458 		  SH_FCR1_I2S2_CELL_ENABLE |
1459 		  SH_FCR1_I2S2_CLK_ENABLE_BIT | SH_FCR1_I2S2_ENABLE,
1460 		  SH_FCR3_I2S2_CLK18_ENABLE
1461 		},
1462 	};
1463 
1464 	if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1465 		return -ENODEV;
1466 	if (strncmp(node->name, "i2s-", 4))
1467 		return -ENODEV;
1468 	cell = node->name[4] - 'a';
1469 	switch(cell) {
1470 	case 0:
1471 	case 1:
1472 		break;
1473 	case 2:
1474 		if (macio->type == macio_shasta)
1475 			break;
1476 	default:
1477 		return -ENODEV;
1478 	}
1479 
1480 	LOCK(flags);
1481 	if (value) {
1482 		MACIO_BIC(KEYLARGO_FCR0, fcrs[cell][0]);
1483 		MACIO_BIS(KEYLARGO_FCR1, fcrs[cell][1]);
1484 		MACIO_BIS(KEYLARGO_FCR3, fcrs[cell][2]);
1485 	} else {
1486 		MACIO_BIC(KEYLARGO_FCR3, fcrs[cell][2]);
1487 		MACIO_BIC(KEYLARGO_FCR1, fcrs[cell][1]);
1488 		MACIO_BIS(KEYLARGO_FCR0, fcrs[cell][0]);
1489 	}
1490 	udelay(10);
1491 	UNLOCK(flags);
1492 
1493 	return 0;
1494 }
1495 
1496 
1497 #ifdef CONFIG_SMP
1498 static long g5_reset_cpu(struct device_node *node, long param, long value)
1499 {
1500 	unsigned int reset_io = 0;
1501 	unsigned long flags;
1502 	struct macio_chip *macio;
1503 	struct device_node *np;
1504 	struct device_node *cpus;
1505 
1506 	macio = &macio_chips[0];
1507 	if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1508 		return -ENODEV;
1509 
1510 	cpus = of_find_node_by_path("/cpus");
1511 	if (cpus == NULL)
1512 		return -ENODEV;
1513 	for (np = cpus->child; np != NULL; np = np->sibling) {
1514 		const u32 *num = of_get_property(np, "reg", NULL);
1515 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
1516 		if (num == NULL || rst == NULL)
1517 			continue;
1518 		if (param == *num) {
1519 			reset_io = *rst;
1520 			break;
1521 		}
1522 	}
1523 	of_node_put(cpus);
1524 	if (np == NULL || reset_io == 0)
1525 		return -ENODEV;
1526 
1527 	LOCK(flags);
1528 	MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1529 	(void)MACIO_IN8(reset_io);
1530 	udelay(1);
1531 	MACIO_OUT8(reset_io, 0);
1532 	(void)MACIO_IN8(reset_io);
1533 	UNLOCK(flags);
1534 
1535 	return 0;
1536 }
1537 #endif /* CONFIG_SMP */
1538 
1539 /*
1540  * This can be called from pmac_smp so isn't static
1541  *
1542  * This takes the second CPU off the bus on dual CPU machines
1543  * running UP
1544  */
1545 void g5_phy_disable_cpu1(void)
1546 {
1547 	if (uninorth_maj == 3)
1548 		UN_OUT(U3_API_PHY_CONFIG_1, 0);
1549 }
1550 #endif /* CONFIG_POWER4 */
1551 
1552 #ifndef CONFIG_POWER4
1553 
1554 
1555 #ifdef CONFIG_PM
1556 static u32 save_gpio_levels[2];
1557 static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
1558 static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
1559 static u32 save_unin_clock_ctl;
1560 
1561 static void keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
1562 {
1563 	u32 temp;
1564 
1565 	if (sleep_mode) {
1566 		mdelay(1);
1567 		MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
1568 		(void)MACIO_IN32(KEYLARGO_FCR0);
1569 		mdelay(1);
1570 	}
1571 
1572 	MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1573 				KL0_SCC_CELL_ENABLE |
1574 				KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
1575 				KL0_IRDA_CLK19_ENABLE);
1576 
1577 	MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
1578 	MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
1579 
1580 	MACIO_BIC(KEYLARGO_FCR1,
1581 		KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1582 		KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1583 		KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1584 		KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1585 		KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1586 		KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
1587 		KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
1588 		KL1_UIDE_ENABLE);
1589 
1590 	MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1591 	MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
1592 
1593 	temp = MACIO_IN32(KEYLARGO_FCR3);
1594 	if (macio->rev >= 2) {
1595 		temp |= KL3_SHUTDOWN_PLL2X;
1596 		if (sleep_mode)
1597 			temp |= KL3_SHUTDOWN_PLL_TOTAL;
1598 	}
1599 
1600 	temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1601 		KL3_SHUTDOWN_PLLKW35;
1602 	if (sleep_mode)
1603 		temp |= KL3_SHUTDOWN_PLLKW12;
1604 	temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
1605 		| KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1606 	if (sleep_mode)
1607 		temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
1608 	MACIO_OUT32(KEYLARGO_FCR3, temp);
1609 
1610 	/* Flush posted writes & wait a bit */
1611 	(void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1612 }
1613 
1614 static void pangea_shutdown(struct macio_chip *macio, int sleep_mode)
1615 {
1616 	u32 temp;
1617 
1618 	MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1619 				KL0_SCC_CELL_ENABLE |
1620 				KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
1621 
1622 	MACIO_BIC(KEYLARGO_FCR1,
1623 		KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1624 		KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1625 		KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1626 		KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1627 		KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1628 		KL1_UIDE_ENABLE);
1629 	if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1630 		MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1631 
1632 	MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1633 
1634 	temp = MACIO_IN32(KEYLARGO_FCR3);
1635 	temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1636 		KL3_SHUTDOWN_PLLKW35;
1637 	temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
1638 		| KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
1639 	if (sleep_mode)
1640 		temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
1641 	MACIO_OUT32(KEYLARGO_FCR3, temp);
1642 
1643 	/* Flush posted writes & wait a bit */
1644 	(void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1645 }
1646 
1647 static void intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
1648 {
1649 	u32 temp;
1650 
1651 	MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1652 		  KL0_SCC_CELL_ENABLE);
1653 
1654 	MACIO_BIC(KEYLARGO_FCR1,
1655 		KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1656 		KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1657 		KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1658 		KL1_EIDE0_ENABLE);
1659 	if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1660 		MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1661 
1662 	temp = MACIO_IN32(KEYLARGO_FCR3);
1663 	temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
1664 		  KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1665 	if (sleep_mode)
1666 		temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
1667 	MACIO_OUT32(KEYLARGO_FCR3, temp);
1668 
1669 	/* Flush posted writes & wait a bit */
1670 	(void)MACIO_IN32(KEYLARGO_FCR0);
1671 	mdelay(10);
1672 }
1673 
1674 
1675 static int
1676 core99_sleep(void)
1677 {
1678 	struct macio_chip *macio;
1679 	int i;
1680 
1681 	macio = &macio_chips[0];
1682 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1683 	    macio->type != macio_intrepid)
1684 		return -ENODEV;
1685 
1686 	/* We power off the wireless slot in case it was not done
1687 	 * by the driver. We don't power it on automatically however
1688 	 */
1689 	if (macio->flags & MACIO_FLAG_AIRPORT_ON)
1690 		core99_airport_enable(macio->of_node, 0, 0);
1691 
1692 	/* We power off the FW cable. Should be done by the driver... */
1693 	if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
1694 		core99_firewire_enable(NULL, 0, 0);
1695 		core99_firewire_cable_power(NULL, 0, 0);
1696 	}
1697 
1698 	/* We make sure int. modem is off (in case driver lost it) */
1699 	if (macio->type == macio_keylargo)
1700 		core99_modem_enable(macio->of_node, 0, 0);
1701 	else
1702 		pangea_modem_enable(macio->of_node, 0, 0);
1703 
1704 	/* We make sure the sound is off as well */
1705 	core99_sound_chip_enable(macio->of_node, 0, 0);
1706 
1707 	/*
1708 	 * Save various bits of KeyLargo
1709 	 */
1710 
1711 	/* Save the state of the various GPIOs */
1712 	save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
1713 	save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
1714 	for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1715 		save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
1716 	for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1717 		save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
1718 
1719 	/* Save the FCRs */
1720 	if (macio->type == macio_keylargo)
1721 		save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
1722 	save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
1723 	save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
1724 	save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
1725 	save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
1726 	save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
1727 	if (macio->type == macio_pangea || macio->type == macio_intrepid)
1728 		save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
1729 
1730 	/* Save state & config of DBDMA channels */
1731 	dbdma_save(macio, save_dbdma);
1732 
1733 	/*
1734 	 * Turn off as much as we can
1735 	 */
1736 	if (macio->type == macio_pangea)
1737 		pangea_shutdown(macio, 1);
1738 	else if (macio->type == macio_intrepid)
1739 		intrepid_shutdown(macio, 1);
1740 	else if (macio->type == macio_keylargo)
1741 		keylargo_shutdown(macio, 1);
1742 
1743 	/*
1744 	 * Put the host bridge to sleep
1745 	 */
1746 
1747 	save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
1748 	/* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
1749 	 * enabled !
1750 	 */
1751 	UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
1752 	       ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
1753 	udelay(100);
1754 	UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1755 	UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
1756 	mdelay(10);
1757 
1758 	/*
1759 	 * FIXME: A bit of black magic with OpenPIC (don't ask me why)
1760 	 */
1761 	if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1762 		MACIO_BIS(0x506e0, 0x00400000);
1763 		MACIO_BIS(0x506e0, 0x80000000);
1764 	}
1765 	return 0;
1766 }
1767 
1768 static int
1769 core99_wake_up(void)
1770 {
1771 	struct macio_chip *macio;
1772 	int i;
1773 
1774 	macio = &macio_chips[0];
1775 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1776 	    macio->type != macio_intrepid)
1777 		return -ENODEV;
1778 
1779 	/*
1780 	 * Wakeup the host bridge
1781 	 */
1782 	UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1783 	udelay(10);
1784 	UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1785 	udelay(10);
1786 
1787 	/*
1788 	 * Restore KeyLargo
1789 	 */
1790 
1791 	if (macio->type == macio_keylargo) {
1792 		MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
1793 		(void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
1794 	}
1795 	MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
1796 	(void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
1797 	MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
1798 	(void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
1799 	MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
1800 	(void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
1801 	MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
1802 	(void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
1803 	MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
1804 	(void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
1805 	if (macio->type == macio_pangea || macio->type == macio_intrepid) {
1806 		MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
1807 		(void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
1808 	}
1809 
1810 	dbdma_restore(macio, save_dbdma);
1811 
1812 	MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
1813 	MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
1814 	for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1815 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
1816 	for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1817 		MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
1818 
1819 	/* FIXME more black magic with OpenPIC ... */
1820 	if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1821 		MACIO_BIC(0x506e0, 0x00400000);
1822 		MACIO_BIC(0x506e0, 0x80000000);
1823 	}
1824 
1825 	UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1826 	udelay(100);
1827 
1828 	return 0;
1829 }
1830 
1831 #endif /* CONFIG_PM */
1832 
1833 static long
1834 core99_sleep_state(struct device_node *node, long param, long value)
1835 {
1836 	/* Param == 1 means to enter the "fake sleep" mode that is
1837 	 * used for CPU speed switch
1838 	 */
1839 	if (param == 1) {
1840 		if (value == 1) {
1841 			UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1842 			UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
1843 		} else {
1844 			UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1845 			udelay(10);
1846 			UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1847 			udelay(10);
1848 		}
1849 		return 0;
1850 	}
1851 	if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
1852 		return -EPERM;
1853 
1854 #ifdef CONFIG_PM
1855 	if (value == 1)
1856 		return core99_sleep();
1857 	else if (value == 0)
1858 		return core99_wake_up();
1859 
1860 #endif /* CONFIG_PM */
1861 	return 0;
1862 }
1863 
1864 #endif /* CONFIG_POWER4 */
1865 
1866 static long
1867 generic_dev_can_wake(struct device_node *node, long param, long value)
1868 {
1869 	/* Todo: eventually check we are really dealing with on-board
1870 	 * video device ...
1871 	 */
1872 
1873 	if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
1874 		pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
1875 	return 0;
1876 }
1877 
1878 static long generic_get_mb_info(struct device_node *node, long param, long value)
1879 {
1880 	switch(param) {
1881 		case PMAC_MB_INFO_MODEL:
1882 			return pmac_mb.model_id;
1883 		case PMAC_MB_INFO_FLAGS:
1884 			return pmac_mb.board_flags;
1885 		case PMAC_MB_INFO_NAME:
1886 			/* hack hack hack... but should work */
1887 			*((const char **)value) = pmac_mb.model_name;
1888 			return 0;
1889 	}
1890 	return -EINVAL;
1891 }
1892 
1893 
1894 /*
1895  * Table definitions
1896  */
1897 
1898 /* Used on any machine
1899  */
1900 static struct feature_table_entry any_features[] = {
1901 	{ PMAC_FTR_GET_MB_INFO,		generic_get_mb_info },
1902 	{ PMAC_FTR_DEVICE_CAN_WAKE,	generic_dev_can_wake },
1903 	{ 0, NULL }
1904 };
1905 
1906 #ifndef CONFIG_POWER4
1907 
1908 /* OHare based motherboards. Currently, we only use these on the
1909  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
1910  * to have issues with turning on/off those asic cells
1911  */
1912 static struct feature_table_entry ohare_features[] = {
1913 	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
1914 	{ PMAC_FTR_SWIM3_ENABLE,	ohare_floppy_enable },
1915 	{ PMAC_FTR_MESH_ENABLE,		ohare_mesh_enable },
1916 	{ PMAC_FTR_IDE_ENABLE,		ohare_ide_enable},
1917 	{ PMAC_FTR_IDE_RESET,		ohare_ide_reset},
1918 	{ PMAC_FTR_SLEEP_STATE,		ohare_sleep_state },
1919 	{ 0, NULL }
1920 };
1921 
1922 /* Heathrow desktop machines (Beige G3).
1923  * Separated as some features couldn't be properly tested
1924  * and the serial port control bits appear to confuse it.
1925  */
1926 static struct feature_table_entry heathrow_desktop_features[] = {
1927 	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
1928 	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
1929 	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
1930 	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
1931 	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
1932 	{ 0, NULL }
1933 };
1934 
1935 /* Heathrow based laptop, that is the Wallstreet and mainstreet
1936  * powerbooks.
1937  */
1938 static struct feature_table_entry heathrow_laptop_features[] = {
1939 	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
1940 	{ PMAC_FTR_MODEM_ENABLE,	heathrow_modem_enable },
1941 	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
1942 	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
1943 	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
1944 	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
1945 	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
1946 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	heathrow_sound_enable },
1947 	{ PMAC_FTR_SLEEP_STATE,		heathrow_sleep_state },
1948 	{ 0, NULL }
1949 };
1950 
1951 /* Paddington based machines
1952  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
1953  */
1954 static struct feature_table_entry paddington_features[] = {
1955 	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
1956 	{ PMAC_FTR_MODEM_ENABLE,	heathrow_modem_enable },
1957 	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
1958 	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
1959 	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
1960 	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
1961 	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
1962 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	heathrow_sound_enable },
1963 	{ PMAC_FTR_SLEEP_STATE,		heathrow_sleep_state },
1964 	{ 0, NULL }
1965 };
1966 
1967 /* Core99 & MacRISC 2 machines (all machines released since the
1968  * iBook (included), that is all AGP machines, except pangea
1969  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
1970  * used on iBook2 & iMac "flow power".
1971  */
1972 static struct feature_table_entry core99_features[] = {
1973 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
1974 	{ PMAC_FTR_MODEM_ENABLE,	core99_modem_enable },
1975 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
1976 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
1977 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
1978 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
1979 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
1980 	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
1981 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
1982 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
1983 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
1984 #ifdef CONFIG_PM
1985 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
1986 #endif
1987 #ifdef CONFIG_SMP
1988 	{ PMAC_FTR_RESET_CPU,		core99_reset_cpu },
1989 #endif /* CONFIG_SMP */
1990 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
1991 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
1992 	{ 0, NULL }
1993 };
1994 
1995 /* RackMac
1996  */
1997 static struct feature_table_entry rackmac_features[] = {
1998 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
1999 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
2000 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
2001 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
2002 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
2003 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
2004 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
2005 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
2006 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
2007 #ifdef CONFIG_SMP
2008 	{ PMAC_FTR_RESET_CPU,		core99_reset_cpu },
2009 #endif /* CONFIG_SMP */
2010 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
2011 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
2012 	{ 0, NULL }
2013 };
2014 
2015 /* Pangea features
2016  */
2017 static struct feature_table_entry pangea_features[] = {
2018 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
2019 	{ PMAC_FTR_MODEM_ENABLE,	pangea_modem_enable },
2020 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
2021 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
2022 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
2023 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
2024 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
2025 	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
2026 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
2027 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
2028 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
2029 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
2030 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
2031 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
2032 	{ 0, NULL }
2033 };
2034 
2035 /* Intrepid features
2036  */
2037 static struct feature_table_entry intrepid_features[] = {
2038 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
2039 	{ PMAC_FTR_MODEM_ENABLE,	pangea_modem_enable },
2040 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
2041 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
2042 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
2043 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
2044 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
2045 	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
2046 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
2047 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
2048 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
2049 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
2050 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
2051 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
2052 	{ PMAC_FTR_AACK_DELAY_ENABLE,	intrepid_aack_delay_enable },
2053 	{ 0, NULL }
2054 };
2055 
2056 #else /* CONFIG_POWER4 */
2057 
2058 /* G5 features
2059  */
2060 static struct feature_table_entry g5_features[] = {
2061 	{ PMAC_FTR_GMAC_ENABLE,		g5_gmac_enable },
2062 	{ PMAC_FTR_1394_ENABLE,		g5_fw_enable },
2063 	{ PMAC_FTR_ENABLE_MPIC,		g5_mpic_enable },
2064 	{ PMAC_FTR_GMAC_PHY_RESET,	g5_eth_phy_reset },
2065 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	g5_i2s_enable },
2066 #ifdef CONFIG_SMP
2067 	{ PMAC_FTR_RESET_CPU,		g5_reset_cpu },
2068 #endif /* CONFIG_SMP */
2069 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
2070 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
2071 	{ 0, NULL }
2072 };
2073 
2074 #endif /* CONFIG_POWER4 */
2075 
2076 static struct pmac_mb_def pmac_mb_defs[] = {
2077 #ifndef CONFIG_POWER4
2078 	/*
2079 	 * Desktops
2080 	 */
2081 
2082 	{	"AAPL,8500",			"PowerMac 8500/8600",
2083 		PMAC_TYPE_PSURGE,		NULL,
2084 		0
2085 	},
2086 	{	"AAPL,9500",			"PowerMac 9500/9600",
2087 		PMAC_TYPE_PSURGE,		NULL,
2088 		0
2089 	},
2090 	{	"AAPL,7200",			"PowerMac 7200",
2091 		PMAC_TYPE_PSURGE,		NULL,
2092 		0
2093 	},
2094 	{	"AAPL,7300",			"PowerMac 7200/7300",
2095 		PMAC_TYPE_PSURGE,		NULL,
2096 		0
2097 	},
2098 	{	"AAPL,7500",			"PowerMac 7500",
2099 		PMAC_TYPE_PSURGE,		NULL,
2100 		0
2101 	},
2102 	{	"AAPL,ShinerESB",		"Apple Network Server",
2103 		PMAC_TYPE_ANS,			NULL,
2104 		0
2105 	},
2106 	{	"AAPL,e407",			"Alchemy",
2107 		PMAC_TYPE_ALCHEMY,		NULL,
2108 		0
2109 	},
2110 	{	"AAPL,e411",			"Gazelle",
2111 		PMAC_TYPE_GAZELLE,		NULL,
2112 		0
2113 	},
2114 	{	"AAPL,Gossamer",		"PowerMac G3 (Gossamer)",
2115 		PMAC_TYPE_GOSSAMER,		heathrow_desktop_features,
2116 		0
2117 	},
2118 	{	"AAPL,PowerMac G3",		"PowerMac G3 (Silk)",
2119 		PMAC_TYPE_SILK,			heathrow_desktop_features,
2120 		0
2121 	},
2122 	{	"PowerMac1,1",			"Blue&White G3",
2123 		PMAC_TYPE_YOSEMITE,		paddington_features,
2124 		0
2125 	},
2126 	{	"PowerMac1,2",			"PowerMac G4 PCI Graphics",
2127 		PMAC_TYPE_YIKES,		paddington_features,
2128 		0
2129 	},
2130 	{	"PowerMac2,1",			"iMac FireWire",
2131 		PMAC_TYPE_FW_IMAC,		core99_features,
2132 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2133 	},
2134 	{	"PowerMac2,2",			"iMac FireWire",
2135 		PMAC_TYPE_FW_IMAC,		core99_features,
2136 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2137 	},
2138 	{	"PowerMac3,1",			"PowerMac G4 AGP Graphics",
2139 		PMAC_TYPE_SAWTOOTH,		core99_features,
2140 		PMAC_MB_OLD_CORE99
2141 	},
2142 	{	"PowerMac3,2",			"PowerMac G4 AGP Graphics",
2143 		PMAC_TYPE_SAWTOOTH,		core99_features,
2144 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2145 	},
2146 	{	"PowerMac3,3",			"PowerMac G4 AGP Graphics",
2147 		PMAC_TYPE_SAWTOOTH,		core99_features,
2148 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2149 	},
2150 	{	"PowerMac3,4",			"PowerMac G4 Silver",
2151 		PMAC_TYPE_QUICKSILVER,		core99_features,
2152 		PMAC_MB_MAY_SLEEP
2153 	},
2154 	{	"PowerMac3,5",			"PowerMac G4 Silver",
2155 		PMAC_TYPE_QUICKSILVER,		core99_features,
2156 		PMAC_MB_MAY_SLEEP
2157 	},
2158 	{	"PowerMac3,6",			"PowerMac G4 Windtunnel",
2159 		PMAC_TYPE_WINDTUNNEL,		core99_features,
2160 		PMAC_MB_MAY_SLEEP,
2161 	},
2162 	{	"PowerMac4,1",			"iMac \"Flower Power\"",
2163 		PMAC_TYPE_PANGEA_IMAC,		pangea_features,
2164 		PMAC_MB_MAY_SLEEP
2165 	},
2166 	{	"PowerMac4,2",			"Flat panel iMac",
2167 		PMAC_TYPE_FLAT_PANEL_IMAC,	pangea_features,
2168 		PMAC_MB_CAN_SLEEP
2169 	},
2170 	{	"PowerMac4,4",			"eMac",
2171 		PMAC_TYPE_EMAC,			core99_features,
2172 		PMAC_MB_MAY_SLEEP
2173 	},
2174 	{	"PowerMac5,1",			"PowerMac G4 Cube",
2175 		PMAC_TYPE_CUBE,			core99_features,
2176 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2177 	},
2178 	{	"PowerMac6,1",			"Flat panel iMac",
2179 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2180 		PMAC_MB_MAY_SLEEP,
2181 	},
2182 	{	"PowerMac6,3",			"Flat panel iMac",
2183 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2184 		PMAC_MB_MAY_SLEEP,
2185 	},
2186 	{	"PowerMac6,4",			"eMac",
2187 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2188 		PMAC_MB_MAY_SLEEP,
2189 	},
2190 	{	"PowerMac10,1",			"Mac mini",
2191 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2192 		PMAC_MB_MAY_SLEEP,
2193 	},
2194 	{	"iMac,1",			"iMac (first generation)",
2195 		PMAC_TYPE_ORIG_IMAC,		paddington_features,
2196 		0
2197 	},
2198 
2199 	/*
2200 	 * Xserve's
2201 	 */
2202 
2203 	{	"RackMac1,1",			"XServe",
2204 		PMAC_TYPE_RACKMAC,		rackmac_features,
2205 		0,
2206 	},
2207 	{	"RackMac1,2",			"XServe rev. 2",
2208 		PMAC_TYPE_RACKMAC,		rackmac_features,
2209 		0,
2210 	},
2211 
2212 	/*
2213 	 * Laptops
2214 	 */
2215 
2216 	{	"AAPL,3400/2400",		"PowerBook 3400",
2217 		PMAC_TYPE_HOOPER,		ohare_features,
2218 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2219 	},
2220 	{	"AAPL,3500",			"PowerBook 3500",
2221 		PMAC_TYPE_KANGA,		ohare_features,
2222 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2223 	},
2224 	{	"AAPL,PowerBook1998",		"PowerBook Wallstreet",
2225 		PMAC_TYPE_WALLSTREET,		heathrow_laptop_features,
2226 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2227 	},
2228 	{	"PowerBook1,1",			"PowerBook 101 (Lombard)",
2229 		PMAC_TYPE_101_PBOOK,		paddington_features,
2230 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2231 	},
2232 	{	"PowerBook2,1",			"iBook (first generation)",
2233 		PMAC_TYPE_ORIG_IBOOK,		core99_features,
2234 		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2235 	},
2236 	{	"PowerBook2,2",			"iBook FireWire",
2237 		PMAC_TYPE_FW_IBOOK,		core99_features,
2238 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2239 		PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2240 	},
2241 	{	"PowerBook3,1",			"PowerBook Pismo",
2242 		PMAC_TYPE_PISMO,		core99_features,
2243 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2244 		PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2245 	},
2246 	{	"PowerBook3,2",			"PowerBook Titanium",
2247 		PMAC_TYPE_TITANIUM,		core99_features,
2248 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2249 	},
2250 	{	"PowerBook3,3",			"PowerBook Titanium II",
2251 		PMAC_TYPE_TITANIUM2,		core99_features,
2252 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2253 	},
2254 	{	"PowerBook3,4",			"PowerBook Titanium III",
2255 		PMAC_TYPE_TITANIUM3,		core99_features,
2256 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2257 	},
2258 	{	"PowerBook3,5",			"PowerBook Titanium IV",
2259 		PMAC_TYPE_TITANIUM4,		core99_features,
2260 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2261 	},
2262 	{	"PowerBook4,1",			"iBook 2",
2263 		PMAC_TYPE_IBOOK2,		pangea_features,
2264 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2265 	},
2266 	{	"PowerBook4,2",			"iBook 2",
2267 		PMAC_TYPE_IBOOK2,		pangea_features,
2268 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2269 	},
2270 	{	"PowerBook4,3",			"iBook 2 rev. 2",
2271 		PMAC_TYPE_IBOOK2,		pangea_features,
2272 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2273 	},
2274 	{	"PowerBook5,1",			"PowerBook G4 17\"",
2275 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2276 		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2277 	},
2278 	{	"PowerBook5,2",			"PowerBook G4 15\"",
2279 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2280 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2281 	},
2282 	{	"PowerBook5,3",			"PowerBook G4 17\"",
2283 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2284 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2285 	},
2286 	{	"PowerBook5,4",			"PowerBook G4 15\"",
2287 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2288 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2289 	},
2290 	{	"PowerBook5,5",			"PowerBook G4 17\"",
2291 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2292 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2293 	},
2294 	{	"PowerBook5,6",			"PowerBook G4 15\"",
2295 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2296 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2297 	},
2298 	{	"PowerBook5,7",			"PowerBook G4 17\"",
2299 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2300 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2301 	},
2302 	{	"PowerBook5,8",			"PowerBook G4 15\"",
2303 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2304 		PMAC_MB_MAY_SLEEP  | PMAC_MB_MOBILE,
2305 	},
2306 	{	"PowerBook5,9",			"PowerBook G4 17\"",
2307 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2308 		PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE,
2309 	},
2310 	{	"PowerBook6,1",			"PowerBook G4 12\"",
2311 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2312 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2313 	},
2314 	{	"PowerBook6,2",			"PowerBook G4",
2315 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2316 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2317 	},
2318 	{	"PowerBook6,3",			"iBook G4",
2319 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2320 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2321 	},
2322 	{	"PowerBook6,4",			"PowerBook G4 12\"",
2323 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2324 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2325 	},
2326 	{	"PowerBook6,5",			"iBook G4",
2327 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2328 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2329 	},
2330 	{	"PowerBook6,7",			"iBook G4",
2331 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2332 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2333 	},
2334 	{	"PowerBook6,8",			"PowerBook G4 12\"",
2335 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2336 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2337 	},
2338 #else /* CONFIG_POWER4 */
2339 	{	"PowerMac7,2",			"PowerMac G5",
2340 		PMAC_TYPE_POWERMAC_G5,		g5_features,
2341 		0,
2342 	},
2343 #ifdef CONFIG_PPC64
2344 	{	"PowerMac7,3",			"PowerMac G5",
2345 		PMAC_TYPE_POWERMAC_G5,		g5_features,
2346 		0,
2347 	},
2348 	{	"PowerMac8,1",			"iMac G5",
2349 		PMAC_TYPE_IMAC_G5,		g5_features,
2350 		0,
2351 	},
2352 	{	"PowerMac9,1",			"PowerMac G5",
2353 		PMAC_TYPE_POWERMAC_G5_U3L,	g5_features,
2354 		0,
2355 	},
2356 	{	"PowerMac11,2",			"PowerMac G5 Dual Core",
2357 		PMAC_TYPE_POWERMAC_G5_U3L,	g5_features,
2358 		0,
2359 	},
2360 	{	"PowerMac12,1",			"iMac G5 (iSight)",
2361 		PMAC_TYPE_POWERMAC_G5_U3L,	g5_features,
2362 		0,
2363 	},
2364 	{       "RackMac3,1",                   "XServe G5",
2365 		PMAC_TYPE_XSERVE_G5,		g5_features,
2366 		0,
2367 	},
2368 #endif /* CONFIG_PPC64 */
2369 #endif /* CONFIG_POWER4 */
2370 };
2371 
2372 /*
2373  * The toplevel feature_call callback
2374  */
2375 long pmac_do_feature_call(unsigned int selector, ...)
2376 {
2377 	struct device_node *node;
2378 	long param, value;
2379 	int i;
2380 	feature_call func = NULL;
2381 	va_list args;
2382 
2383 	if (pmac_mb.features)
2384 		for (i=0; pmac_mb.features[i].function; i++)
2385 			if (pmac_mb.features[i].selector == selector) {
2386 				func = pmac_mb.features[i].function;
2387 				break;
2388 			}
2389 	if (!func)
2390 		for (i=0; any_features[i].function; i++)
2391 			if (any_features[i].selector == selector) {
2392 				func = any_features[i].function;
2393 				break;
2394 			}
2395 	if (!func)
2396 		return -ENODEV;
2397 
2398 	va_start(args, selector);
2399 	node = (struct device_node*)va_arg(args, void*);
2400 	param = va_arg(args, long);
2401 	value = va_arg(args, long);
2402 	va_end(args);
2403 
2404 	return func(node, param, value);
2405 }
2406 
2407 static int __init probe_motherboard(void)
2408 {
2409 	int i;
2410 	struct macio_chip *macio = &macio_chips[0];
2411 	const char *model = NULL;
2412 	struct device_node *dt;
2413 	int ret = 0;
2414 
2415 	/* Lookup known motherboard type in device-tree. First try an
2416 	 * exact match on the "model" property, then try a "compatible"
2417 	 * match is none is found.
2418 	 */
2419 	dt = of_find_node_by_name(NULL, "device-tree");
2420 	if (dt != NULL)
2421 		model = of_get_property(dt, "model", NULL);
2422 	for(i=0; model && i<ARRAY_SIZE(pmac_mb_defs); i++) {
2423 	    if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
2424 		pmac_mb = pmac_mb_defs[i];
2425 		goto found;
2426 	    }
2427 	}
2428 	for(i=0; i<ARRAY_SIZE(pmac_mb_defs); i++) {
2429 	    if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
2430 		pmac_mb = pmac_mb_defs[i];
2431 		goto found;
2432 	    }
2433 	}
2434 
2435 	/* Fallback to selection depending on mac-io chip type */
2436 	switch(macio->type) {
2437 #ifndef CONFIG_POWER4
2438 	    case macio_grand_central:
2439 		pmac_mb.model_id = PMAC_TYPE_PSURGE;
2440 		pmac_mb.model_name = "Unknown PowerSurge";
2441 		break;
2442 	    case macio_ohare:
2443 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
2444 		pmac_mb.model_name = "Unknown OHare-based";
2445 		break;
2446 	    case macio_heathrow:
2447 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
2448 		pmac_mb.model_name = "Unknown Heathrow-based";
2449 		pmac_mb.features = heathrow_desktop_features;
2450 		break;
2451 	    case macio_paddington:
2452 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
2453 		pmac_mb.model_name = "Unknown Paddington-based";
2454 		pmac_mb.features = paddington_features;
2455 		break;
2456 	    case macio_keylargo:
2457 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
2458 		pmac_mb.model_name = "Unknown Keylargo-based";
2459 		pmac_mb.features = core99_features;
2460 		break;
2461 	    case macio_pangea:
2462 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
2463 		pmac_mb.model_name = "Unknown Pangea-based";
2464 		pmac_mb.features = pangea_features;
2465 		break;
2466 	    case macio_intrepid:
2467 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
2468 		pmac_mb.model_name = "Unknown Intrepid-based";
2469 		pmac_mb.features = intrepid_features;
2470 		break;
2471 #else /* CONFIG_POWER4 */
2472 	case macio_keylargo2:
2473 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
2474 		pmac_mb.model_name = "Unknown K2-based";
2475 		pmac_mb.features = g5_features;
2476 		break;
2477 	case macio_shasta:
2478 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
2479 		pmac_mb.model_name = "Unknown Shasta-based";
2480 		pmac_mb.features = g5_features;
2481 		break;
2482 #endif /* CONFIG_POWER4 */
2483 	default:
2484 		ret = -ENODEV;
2485 		goto done;
2486 	}
2487 found:
2488 #ifndef CONFIG_POWER4
2489 	/* Fixup Hooper vs. Comet */
2490 	if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
2491 		u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
2492 		if (!mach_id_ptr) {
2493 			ret = -ENODEV;
2494 			goto done;
2495 		}
2496 		/* Here, I used to disable the media-bay on comet. It
2497 		 * appears this is wrong, the floppy connector is actually
2498 		 * a kind of media-bay and works with the current driver.
2499 		 */
2500 		if (__raw_readl(mach_id_ptr) & 0x20000000UL)
2501 			pmac_mb.model_id = PMAC_TYPE_COMET;
2502 		iounmap(mach_id_ptr);
2503 	}
2504 
2505 	/* Set default value of powersave_nap on machines that support it.
2506 	 * It appears that uninorth rev 3 has a problem with it, we don't
2507 	 * enable it on those. In theory, the flush-on-lock property is
2508 	 * supposed to be set when not supported, but I'm not very confident
2509 	 * that all Apple OF revs did it properly, I do it the paranoid way.
2510 	 */
2511 	while (uninorth_base && uninorth_rev > 3) {
2512 		struct device_node *cpus = of_find_node_by_path("/cpus");
2513 		struct device_node *np;
2514 
2515 		if (!cpus || !cpus->child) {
2516 			printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
2517 			of_node_put(cpus);
2518 			break;
2519 		}
2520 		np = cpus->child;
2521 		/* Nap mode not supported on SMP */
2522 		if (np->sibling) {
2523 			of_node_put(cpus);
2524 			break;
2525 		}
2526 		/* Nap mode not supported if flush-on-lock property is present */
2527 		if (of_get_property(np, "flush-on-lock", NULL)) {
2528 			of_node_put(cpus);
2529 			break;
2530 		}
2531 		of_node_put(cpus);
2532 		powersave_nap = 1;
2533 		printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
2534 		break;
2535 	}
2536 
2537 	/* On CPUs that support it (750FX), lowspeed by default during
2538 	 * NAP mode
2539 	 */
2540 	powersave_lowspeed = 1;
2541 
2542 #else /* CONFIG_POWER4 */
2543 	powersave_nap = 1;
2544 #endif  /* CONFIG_POWER4 */
2545 
2546 	/* Check for "mobile" machine */
2547 	if (model && (strncmp(model, "PowerBook", 9) == 0
2548 		   || strncmp(model, "iBook", 5) == 0))
2549 		pmac_mb.board_flags |= PMAC_MB_MOBILE;
2550 
2551 
2552 	printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
2553 done:
2554 	of_node_put(dt);
2555 	return ret;
2556 }
2557 
2558 /* Initialize the Core99 UniNorth host bridge and memory controller
2559  */
2560 static void __init probe_uninorth(void)
2561 {
2562 	const u32 *addrp;
2563 	phys_addr_t address;
2564 	unsigned long actrl;
2565 
2566 	/* Locate core99 Uni-N */
2567 	uninorth_node = of_find_node_by_name(NULL, "uni-n");
2568 	uninorth_maj = 1;
2569 
2570 	/* Locate G5 u3 */
2571 	if (uninorth_node == NULL) {
2572 		uninorth_node = of_find_node_by_name(NULL, "u3");
2573 		uninorth_maj = 3;
2574 	}
2575 	/* Locate G5 u4 */
2576 	if (uninorth_node == NULL) {
2577 		uninorth_node = of_find_node_by_name(NULL, "u4");
2578 		uninorth_maj = 4;
2579 	}
2580 	if (uninorth_node == NULL) {
2581 		uninorth_maj = 0;
2582 		return;
2583 	}
2584 
2585 	addrp = of_get_property(uninorth_node, "reg", NULL);
2586 	if (addrp == NULL)
2587 		return;
2588 	address = of_translate_address(uninorth_node, addrp);
2589 	if (address == 0)
2590 		return;
2591 	uninorth_base = ioremap(address, 0x40000);
2592 	if (uninorth_base == NULL)
2593 		return;
2594 	uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
2595 	if (uninorth_maj == 3 || uninorth_maj == 4) {
2596 		u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
2597 		if (u3_ht_base == NULL) {
2598 			iounmap(uninorth_base);
2599 			return;
2600 		}
2601 	}
2602 
2603 	printk(KERN_INFO "Found %s memory controller & host bridge"
2604 	       " @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
2605 	       uninorth_maj == 4 ? "U4" : "UniNorth",
2606 	       (unsigned int)address, uninorth_rev);
2607 	printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
2608 
2609 	/* Set the arbitrer QAck delay according to what Apple does
2610 	 */
2611 	if (uninorth_rev < 0x11) {
2612 		actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
2613 		actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
2614 			UNI_N_ARB_CTRL_QACK_DELAY) <<
2615 			UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
2616 		UN_OUT(UNI_N_ARB_CTRL, actrl);
2617 	}
2618 
2619 	/* Some more magic as done by them in recent MacOS X on UniNorth
2620 	 * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
2621 	 * memory timeout
2622 	 */
2623 	if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
2624 	    uninorth_rev == 0xc0)
2625 		UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
2626 }
2627 
2628 static void __init probe_one_macio(const char *name, const char *compat, int type)
2629 {
2630 	struct device_node*	node;
2631 	int			i;
2632 	volatile u32 __iomem	*base;
2633 	const u32		*addrp, *revp;
2634 	phys_addr_t		addr;
2635 	u64			size;
2636 
2637 	for (node = NULL; (node = of_find_node_by_name(node, name)) != NULL;) {
2638 		if (!compat)
2639 			break;
2640 		if (of_device_is_compatible(node, compat))
2641 			break;
2642 	}
2643 	if (!node)
2644 		return;
2645 	for(i=0; i<MAX_MACIO_CHIPS; i++) {
2646 		if (!macio_chips[i].of_node)
2647 			break;
2648 		if (macio_chips[i].of_node == node)
2649 			return;
2650 	}
2651 
2652 	if (i >= MAX_MACIO_CHIPS) {
2653 		printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
2654 		printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
2655 		return;
2656 	}
2657 	addrp = of_get_pci_address(node, 0, &size, NULL);
2658 	if (addrp == NULL) {
2659 		printk(KERN_ERR "pmac_feature: %s: can't find base !\n",
2660 		       node->full_name);
2661 		return;
2662 	}
2663 	addr = of_translate_address(node, addrp);
2664 	if (addr == 0) {
2665 		printk(KERN_ERR "pmac_feature: %s, can't translate base !\n",
2666 		       node->full_name);
2667 		return;
2668 	}
2669 	base = ioremap(addr, (unsigned long)size);
2670 	if (!base) {
2671 		printk(KERN_ERR "pmac_feature: %s, can't map mac-io chip !\n",
2672 		       node->full_name);
2673 		return;
2674 	}
2675 	if (type == macio_keylargo || type == macio_keylargo2) {
2676 		const u32 *did = of_get_property(node, "device-id", NULL);
2677 		if (*did == 0x00000025)
2678 			type = macio_pangea;
2679 		if (*did == 0x0000003e)
2680 			type = macio_intrepid;
2681 		if (*did == 0x0000004f)
2682 			type = macio_shasta;
2683 	}
2684 	macio_chips[i].of_node	= node;
2685 	macio_chips[i].type	= type;
2686 	macio_chips[i].base	= base;
2687 	macio_chips[i].flags	= MACIO_FLAG_SCCA_ON | MACIO_FLAG_SCCB_ON;
2688 	macio_chips[i].name	= macio_names[type];
2689 	revp = of_get_property(node, "revision-id", NULL);
2690 	if (revp)
2691 		macio_chips[i].rev = *revp;
2692 	printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
2693 		macio_names[type], macio_chips[i].rev, macio_chips[i].base);
2694 }
2695 
2696 static int __init
2697 probe_macios(void)
2698 {
2699 	/* Warning, ordering is important */
2700 	probe_one_macio("gc", NULL, macio_grand_central);
2701 	probe_one_macio("ohare", NULL, macio_ohare);
2702 	probe_one_macio("pci106b,7", NULL, macio_ohareII);
2703 	probe_one_macio("mac-io", "keylargo", macio_keylargo);
2704 	probe_one_macio("mac-io", "paddington", macio_paddington);
2705 	probe_one_macio("mac-io", "gatwick", macio_gatwick);
2706 	probe_one_macio("mac-io", "heathrow", macio_heathrow);
2707 	probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
2708 
2709 	/* Make sure the "main" macio chip appear first */
2710 	if (macio_chips[0].type == macio_gatwick
2711 	    && macio_chips[1].type == macio_heathrow) {
2712 		struct macio_chip temp = macio_chips[0];
2713 		macio_chips[0] = macio_chips[1];
2714 		macio_chips[1] = temp;
2715 	}
2716 	if (macio_chips[0].type == macio_ohareII
2717 	    && macio_chips[1].type == macio_ohare) {
2718 		struct macio_chip temp = macio_chips[0];
2719 		macio_chips[0] = macio_chips[1];
2720 		macio_chips[1] = temp;
2721 	}
2722 	macio_chips[0].lbus.index = 0;
2723 	macio_chips[1].lbus.index = 1;
2724 
2725 	return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
2726 }
2727 
2728 static void __init
2729 initial_serial_shutdown(struct device_node *np)
2730 {
2731 	int len;
2732 	const struct slot_names_prop {
2733 		int	count;
2734 		char	name[1];
2735 	} *slots;
2736 	const char *conn;
2737 	int port_type = PMAC_SCC_ASYNC;
2738 	int modem = 0;
2739 
2740 	slots = of_get_property(np, "slot-names", &len);
2741 	conn = of_get_property(np, "AAPL,connector", &len);
2742 	if (conn && (strcmp(conn, "infrared") == 0))
2743 		port_type = PMAC_SCC_IRDA;
2744 	else if (of_device_is_compatible(np, "cobalt"))
2745 		modem = 1;
2746 	else if (slots && slots->count > 0) {
2747 		if (strcmp(slots->name, "IrDA") == 0)
2748 			port_type = PMAC_SCC_IRDA;
2749 		else if (strcmp(slots->name, "Modem") == 0)
2750 			modem = 1;
2751 	}
2752 	if (modem)
2753 		pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
2754 	pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
2755 }
2756 
2757 static void __init
2758 set_initial_features(void)
2759 {
2760 	struct device_node *np;
2761 
2762 	/* That hack appears to be necessary for some StarMax motherboards
2763 	 * but I'm not too sure it was audited for side-effects on other
2764 	 * ohare based machines...
2765 	 * Since I still have difficulties figuring the right way to
2766 	 * differenciate them all and since that hack was there for a long
2767 	 * time, I'll keep it around
2768 	 */
2769 	if (macio_chips[0].type == macio_ohare) {
2770 		struct macio_chip *macio = &macio_chips[0];
2771 		np = of_find_node_by_name(NULL, "via-pmu");
2772 		if (np)
2773 			MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2774 		else
2775 			MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
2776 		of_node_put(np);
2777 	} else if (macio_chips[1].type == macio_ohare) {
2778 		struct macio_chip *macio = &macio_chips[1];
2779 		MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2780 	}
2781 
2782 #ifdef CONFIG_POWER4
2783 	if (macio_chips[0].type == macio_keylargo2 ||
2784 	    macio_chips[0].type == macio_shasta) {
2785 #ifndef CONFIG_SMP
2786 		/* On SMP machines running UP, we have the second CPU eating
2787 		 * bus cycles. We need to take it off the bus. This is done
2788 		 * from pmac_smp for SMP kernels running on one CPU
2789 		 */
2790 		np = of_find_node_by_type(NULL, "cpu");
2791 		if (np != NULL)
2792 			np = of_find_node_by_type(np, "cpu");
2793 		if (np != NULL) {
2794 			g5_phy_disable_cpu1();
2795 			of_node_put(np);
2796 		}
2797 #endif /* CONFIG_SMP */
2798 		/* Enable GMAC for now for PCI probing. It will be disabled
2799 		 * later on after PCI probe
2800 		 */
2801 		np = of_find_node_by_name(NULL, "ethernet");
2802 		while(np) {
2803 			if (of_device_is_compatible(np, "K2-GMAC"))
2804 				g5_gmac_enable(np, 0, 1);
2805 			np = of_find_node_by_name(np, "ethernet");
2806 		}
2807 
2808 		/* Enable FW before PCI probe. Will be disabled later on
2809 		 * Note: We should have a batter way to check that we are
2810 		 * dealing with uninorth internal cell and not a PCI cell
2811 		 * on the external PCI. The code below works though.
2812 		 */
2813 		np = of_find_node_by_name(NULL, "firewire");
2814 		while(np) {
2815 			if (of_device_is_compatible(np, "pci106b,5811")) {
2816 				macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2817 				g5_fw_enable(np, 0, 1);
2818 			}
2819 			np = of_find_node_by_name(np, "firewire");
2820 		}
2821 	}
2822 #else /* CONFIG_POWER4 */
2823 
2824 	if (macio_chips[0].type == macio_keylargo ||
2825 	    macio_chips[0].type == macio_pangea ||
2826 	    macio_chips[0].type == macio_intrepid) {
2827 		/* Enable GMAC for now for PCI probing. It will be disabled
2828 		 * later on after PCI probe
2829 		 */
2830 		np = of_find_node_by_name(NULL, "ethernet");
2831 		while(np) {
2832 			if (np->parent
2833 			    && of_device_is_compatible(np->parent, "uni-north")
2834 			    && of_device_is_compatible(np, "gmac"))
2835 				core99_gmac_enable(np, 0, 1);
2836 			np = of_find_node_by_name(np, "ethernet");
2837 		}
2838 
2839 		/* Enable FW before PCI probe. Will be disabled later on
2840 		 * Note: We should have a batter way to check that we are
2841 		 * dealing with uninorth internal cell and not a PCI cell
2842 		 * on the external PCI. The code below works though.
2843 		 */
2844 		np = of_find_node_by_name(NULL, "firewire");
2845 		while(np) {
2846 			if (np->parent
2847 			    && of_device_is_compatible(np->parent, "uni-north")
2848 			    && (of_device_is_compatible(np, "pci106b,18") ||
2849 			        of_device_is_compatible(np, "pci106b,30") ||
2850 			        of_device_is_compatible(np, "pci11c1,5811"))) {
2851 				macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2852 				core99_firewire_enable(np, 0, 1);
2853 			}
2854 			np = of_find_node_by_name(np, "firewire");
2855 		}
2856 
2857 		/* Enable ATA-100 before PCI probe. */
2858 		np = of_find_node_by_name(NULL, "ata-6");
2859 		while(np) {
2860 			if (np->parent
2861 			    && of_device_is_compatible(np->parent, "uni-north")
2862 			    && of_device_is_compatible(np, "kauai-ata")) {
2863 				core99_ata100_enable(np, 1);
2864 			}
2865 			np = of_find_node_by_name(np, "ata-6");
2866 		}
2867 
2868 		/* Switch airport off */
2869 		for_each_node_by_name(np, "radio") {
2870 			if (np && np->parent == macio_chips[0].of_node) {
2871 				macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
2872 				core99_airport_enable(np, 0, 0);
2873 			}
2874 		}
2875 		of_node_put(np);
2876 	}
2877 
2878 	/* On all machines that support sound PM, switch sound off */
2879 	if (macio_chips[0].of_node)
2880 		pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
2881 			macio_chips[0].of_node, 0, 0);
2882 
2883 	/* While on some desktop G3s, we turn it back on */
2884 	if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
2885 		&& (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
2886 		    pmac_mb.model_id == PMAC_TYPE_SILK)) {
2887 		struct macio_chip *macio = &macio_chips[0];
2888 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
2889 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2890 	}
2891 
2892 #endif /* CONFIG_POWER4 */
2893 
2894 	/* On all machines, switch modem & serial ports off */
2895 	for_each_node_by_name(np, "ch-a")
2896 		initial_serial_shutdown(np);
2897 	of_node_put(np);
2898 	for_each_node_by_name(np, "ch-b")
2899 		initial_serial_shutdown(np);
2900 	of_node_put(np);
2901 }
2902 
2903 void __init
2904 pmac_feature_init(void)
2905 {
2906 	/* Detect the UniNorth memory controller */
2907 	probe_uninorth();
2908 
2909 	/* Probe mac-io controllers */
2910 	if (probe_macios()) {
2911 		printk(KERN_WARNING "No mac-io chip found\n");
2912 		return;
2913 	}
2914 
2915 	/* Probe machine type */
2916 	if (probe_motherboard())
2917 		printk(KERN_WARNING "Unknown PowerMac !\n");
2918 
2919 	/* Set some initial features (turn off some chips that will
2920 	 * be later turned on)
2921 	 */
2922 	set_initial_features();
2923 }
2924 
2925 #if 0
2926 static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2927 {
2928 	int	freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
2929 	int	bits[8] = { 8,16,0,32,2,4,0,0 };
2930 	int	freq = (frq >> 8) & 0xf;
2931 
2932 	if (freqs[freq] == 0)
2933 		printk("%s: Unknown HT link frequency %x\n", name, freq);
2934 	else
2935 		printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
2936 		       name, freqs[freq],
2937 		       bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
2938 }
2939 
2940 void __init pmac_check_ht_link(void)
2941 {
2942 	u32	ufreq, freq, ucfg, cfg;
2943 	struct device_node *pcix_node;
2944 	u8	px_bus, px_devfn;
2945 	struct pci_controller *px_hose;
2946 
2947 	(void)in_be32(u3_ht_base + U3_HT_LINK_COMMAND);
2948 	ucfg = cfg = in_be32(u3_ht_base + U3_HT_LINK_CONFIG);
2949 	ufreq = freq = in_be32(u3_ht_base + U3_HT_LINK_FREQ);
2950 	dump_HT_speeds("U3 HyperTransport", cfg, freq);
2951 
2952 	pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
2953 	if (pcix_node == NULL) {
2954 		printk("No PCI-X bridge found\n");
2955 		return;
2956 	}
2957 	if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
2958 		printk("PCI-X bridge found but not matched to pci\n");
2959 		return;
2960 	}
2961 	px_hose = pci_find_hose_for_OF_device(pcix_node);
2962 	if (px_hose == NULL) {
2963 		printk("PCI-X bridge found but not matched to host\n");
2964 		return;
2965 	}
2966 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
2967 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
2968 	dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
2969 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2970 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2971 	dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2972 }
2973 #endif /* 0 */
2974 
2975 /*
2976  * Early video resume hook
2977  */
2978 
2979 static void (*pmac_early_vresume_proc)(void *data);
2980 static void *pmac_early_vresume_data;
2981 
2982 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
2983 {
2984 	if (!machine_is(powermac))
2985 		return;
2986 	preempt_disable();
2987 	pmac_early_vresume_proc = proc;
2988 	pmac_early_vresume_data = data;
2989 	preempt_enable();
2990 }
2991 EXPORT_SYMBOL(pmac_set_early_video_resume);
2992 
2993 void pmac_call_early_video_resume(void)
2994 {
2995 	if (pmac_early_vresume_proc)
2996 		pmac_early_vresume_proc(pmac_early_vresume_data);
2997 }
2998 
2999 /*
3000  * AGP related suspend/resume code
3001  */
3002 
3003 static struct pci_dev *pmac_agp_bridge;
3004 static int (*pmac_agp_suspend)(struct pci_dev *bridge);
3005 static int (*pmac_agp_resume)(struct pci_dev *bridge);
3006 
3007 void pmac_register_agp_pm(struct pci_dev *bridge,
3008 				 int (*suspend)(struct pci_dev *bridge),
3009 				 int (*resume)(struct pci_dev *bridge))
3010 {
3011 	if (suspend || resume) {
3012 		pmac_agp_bridge = bridge;
3013 		pmac_agp_suspend = suspend;
3014 		pmac_agp_resume = resume;
3015 		return;
3016 	}
3017 	if (bridge != pmac_agp_bridge)
3018 		return;
3019 	pmac_agp_suspend = pmac_agp_resume = NULL;
3020 	return;
3021 }
3022 EXPORT_SYMBOL(pmac_register_agp_pm);
3023 
3024 void pmac_suspend_agp_for_card(struct pci_dev *dev)
3025 {
3026 	if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
3027 		return;
3028 	if (pmac_agp_bridge->bus != dev->bus)
3029 		return;
3030 	pmac_agp_suspend(pmac_agp_bridge);
3031 }
3032 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
3033 
3034 void pmac_resume_agp_for_card(struct pci_dev *dev)
3035 {
3036 	if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
3037 		return;
3038 	if (pmac_agp_bridge->bus != dev->bus)
3039 		return;
3040 	pmac_agp_resume(pmac_agp_bridge);
3041 }
3042 EXPORT_SYMBOL(pmac_resume_agp_for_card);
3043 
3044 int pmac_get_uninorth_variant(void)
3045 {
3046 	return uninorth_maj;
3047 }
3048