1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
4  *                          Ben. Herrenschmidt (benh@kernel.crashing.org)
5  *
6  *  TODO:
7  *
8  *   - Replace mdelay with some schedule loop if possible
9  *   - Shorten some obfuscated delays on some routines (like modem
10  *     power)
11  *   - Refcount some clocks (see darwin)
12  *   - Split split split...
13  */
14 #include <linux/types.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/kernel.h>
18 #include <linux/sched.h>
19 #include <linux/of.h>
20 #include <linux/of_address.h>
21 #include <linux/spinlock.h>
22 #include <linux/adb.h>
23 #include <linux/pmu.h>
24 #include <linux/ioport.h>
25 #include <linux/export.h>
26 #include <linux/pci.h>
27 #include <asm/sections.h>
28 #include <asm/errno.h>
29 #include <asm/ohare.h>
30 #include <asm/heathrow.h>
31 #include <asm/keylargo.h>
32 #include <asm/uninorth.h>
33 #include <asm/io.h>
34 #include <asm/machdep.h>
35 #include <asm/pmac_feature.h>
36 #include <asm/dbdma.h>
37 #include <asm/pci-bridge.h>
38 #include <asm/pmac_low_i2c.h>
39 
40 #undef DEBUG_FEATURE
41 
42 #ifdef DEBUG_FEATURE
43 #define DBG(fmt...) printk(KERN_DEBUG fmt)
44 #else
45 #define DBG(fmt...)
46 #endif
47 
48 #ifdef CONFIG_PPC_BOOK3S_32
49 extern int powersave_lowspeed;
50 #endif
51 
52 extern int powersave_nap;
53 extern struct device_node *k2_skiplist[2];
54 
55 /*
56  * We use a single global lock to protect accesses. Each driver has
57  * to take care of its own locking
58  */
59 DEFINE_RAW_SPINLOCK(feature_lock);
60 
61 #define LOCK(flags)	raw_spin_lock_irqsave(&feature_lock, flags);
62 #define UNLOCK(flags)	raw_spin_unlock_irqrestore(&feature_lock, flags);
63 
64 
65 /*
66  * Instance of some macio stuffs
67  */
68 struct macio_chip macio_chips[MAX_MACIO_CHIPS];
69 
macio_find(struct device_node * child,int type)70 struct macio_chip *macio_find(struct device_node *child, int type)
71 {
72 	while(child) {
73 		int	i;
74 
75 		for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
76 			if (child == macio_chips[i].of_node &&
77 			    (!type || macio_chips[i].type == type))
78 				return &macio_chips[i];
79 		child = child->parent;
80 	}
81 	return NULL;
82 }
83 EXPORT_SYMBOL_GPL(macio_find);
84 
85 static const char *macio_names[] =
86 {
87 	"Unknown",
88 	"Grand Central",
89 	"OHare",
90 	"OHareII",
91 	"Heathrow",
92 	"Gatwick",
93 	"Paddington",
94 	"Keylargo",
95 	"Pangea",
96 	"Intrepid",
97 	"K2",
98 	"Shasta",
99 };
100 
101 
102 struct device_node *uninorth_node;
103 u32 __iomem *uninorth_base;
104 
105 static u32 uninorth_rev;
106 static int uninorth_maj;
107 static void __iomem *u3_ht_base;
108 
109 /*
110  * For each motherboard family, we have a table of functions pointers
111  * that handle the various features.
112  */
113 
114 typedef long (*feature_call)(struct device_node *node, long param, long value);
115 
116 struct feature_table_entry {
117 	unsigned int	selector;
118 	feature_call	function;
119 };
120 
121 struct pmac_mb_def
122 {
123 	const char*			model_string;
124 	const char*			model_name;
125 	int				model_id;
126 	struct feature_table_entry*	features;
127 	unsigned long			board_flags;
128 };
129 static struct pmac_mb_def pmac_mb;
130 
131 /*
132  * Here are the chip specific feature functions
133  */
134 
simple_feature_tweak(struct device_node * node,int type,int reg,u32 mask,int value)135 static inline int simple_feature_tweak(struct device_node *node, int type,
136 				       int reg, u32 mask, int value)
137 {
138 	struct macio_chip*	macio;
139 	unsigned long		flags;
140 
141 	macio = macio_find(node, type);
142 	if (!macio)
143 		return -ENODEV;
144 	LOCK(flags);
145 	if (value)
146 		MACIO_BIS(reg, mask);
147 	else
148 		MACIO_BIC(reg, mask);
149 	(void)MACIO_IN32(reg);
150 	UNLOCK(flags);
151 
152 	return 0;
153 }
154 
155 #ifndef CONFIG_PPC64
156 
ohare_htw_scc_enable(struct device_node * node,long param,long value)157 static long ohare_htw_scc_enable(struct device_node *node, long param,
158 				 long value)
159 {
160 	struct macio_chip*	macio;
161 	unsigned long		chan_mask;
162 	unsigned long		fcr;
163 	unsigned long		flags;
164 	int			htw, trans;
165 	unsigned long		rmask;
166 
167 	macio = macio_find(node, 0);
168 	if (!macio)
169 		return -ENODEV;
170 	if (of_node_name_eq(node, "ch-a"))
171 		chan_mask = MACIO_FLAG_SCCA_ON;
172 	else if (of_node_name_eq(node, "ch-b"))
173 		chan_mask = MACIO_FLAG_SCCB_ON;
174 	else
175 		return -ENODEV;
176 
177 	htw = (macio->type == macio_heathrow || macio->type == macio_paddington
178 		|| macio->type == macio_gatwick);
179 	/* On these machines, the HRW_SCC_TRANS_EN_N bit mustn't be touched */
180 	trans = (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
181 		 pmac_mb.model_id != PMAC_TYPE_YIKES);
182 	if (value) {
183 #ifdef CONFIG_ADB_PMU
184 		if ((param & 0xfff) == PMAC_SCC_IRDA)
185 			pmu_enable_irled(1);
186 #endif /* CONFIG_ADB_PMU */
187 		LOCK(flags);
188 		fcr = MACIO_IN32(OHARE_FCR);
189 		/* Check if scc cell need enabling */
190 		if (!(fcr & OH_SCC_ENABLE)) {
191 			fcr |= OH_SCC_ENABLE;
192 			if (htw) {
193 				/* Side effect: this will also power up the
194 				 * modem, but it's too messy to figure out on which
195 				 * ports this controls the transceiver and on which
196 				 * it controls the modem
197 				 */
198 				if (trans)
199 					fcr &= ~HRW_SCC_TRANS_EN_N;
200 				MACIO_OUT32(OHARE_FCR, fcr);
201 				fcr |= (rmask = HRW_RESET_SCC);
202 				MACIO_OUT32(OHARE_FCR, fcr);
203 			} else {
204 				fcr |= (rmask = OH_SCC_RESET);
205 				MACIO_OUT32(OHARE_FCR, fcr);
206 			}
207 			UNLOCK(flags);
208 			(void)MACIO_IN32(OHARE_FCR);
209 			mdelay(15);
210 			LOCK(flags);
211 			fcr &= ~rmask;
212 			MACIO_OUT32(OHARE_FCR, fcr);
213 		}
214 		if (chan_mask & MACIO_FLAG_SCCA_ON)
215 			fcr |= OH_SCCA_IO;
216 		if (chan_mask & MACIO_FLAG_SCCB_ON)
217 			fcr |= OH_SCCB_IO;
218 		MACIO_OUT32(OHARE_FCR, fcr);
219 		macio->flags |= chan_mask;
220 		UNLOCK(flags);
221 		if (param & PMAC_SCC_FLAG_XMON)
222 			macio->flags |= MACIO_FLAG_SCC_LOCKED;
223 	} else {
224 		if (macio->flags & MACIO_FLAG_SCC_LOCKED)
225 			return -EPERM;
226 		LOCK(flags);
227 		fcr = MACIO_IN32(OHARE_FCR);
228 		if (chan_mask & MACIO_FLAG_SCCA_ON)
229 			fcr &= ~OH_SCCA_IO;
230 		if (chan_mask & MACIO_FLAG_SCCB_ON)
231 			fcr &= ~OH_SCCB_IO;
232 		MACIO_OUT32(OHARE_FCR, fcr);
233 		if ((fcr & (OH_SCCA_IO | OH_SCCB_IO)) == 0) {
234 			fcr &= ~OH_SCC_ENABLE;
235 			if (htw && trans)
236 				fcr |= HRW_SCC_TRANS_EN_N;
237 			MACIO_OUT32(OHARE_FCR, fcr);
238 		}
239 		macio->flags &= ~(chan_mask);
240 		UNLOCK(flags);
241 		mdelay(10);
242 #ifdef CONFIG_ADB_PMU
243 		if ((param & 0xfff) == PMAC_SCC_IRDA)
244 			pmu_enable_irled(0);
245 #endif /* CONFIG_ADB_PMU */
246 	}
247 	return 0;
248 }
249 
ohare_floppy_enable(struct device_node * node,long param,long value)250 static long ohare_floppy_enable(struct device_node *node, long param,
251 				long value)
252 {
253 	return simple_feature_tweak(node, macio_ohare,
254 		OHARE_FCR, OH_FLOPPY_ENABLE, value);
255 }
256 
ohare_mesh_enable(struct device_node * node,long param,long value)257 static long ohare_mesh_enable(struct device_node *node, long param, long value)
258 {
259 	return simple_feature_tweak(node, macio_ohare,
260 		OHARE_FCR, OH_MESH_ENABLE, value);
261 }
262 
ohare_ide_enable(struct device_node * node,long param,long value)263 static long ohare_ide_enable(struct device_node *node, long param, long value)
264 {
265 	switch(param) {
266 	case 0:
267 		/* For some reason, setting the bit in set_initial_features()
268 		 * doesn't stick. I'm still investigating... --BenH.
269 		 */
270 		if (value)
271 			simple_feature_tweak(node, macio_ohare,
272 				OHARE_FCR, OH_IOBUS_ENABLE, 1);
273 		return simple_feature_tweak(node, macio_ohare,
274 			OHARE_FCR, OH_IDE0_ENABLE, value);
275 	case 1:
276 		return simple_feature_tweak(node, macio_ohare,
277 			OHARE_FCR, OH_BAY_IDE_ENABLE, value);
278 	default:
279 		return -ENODEV;
280 	}
281 }
282 
ohare_ide_reset(struct device_node * node,long param,long value)283 static long ohare_ide_reset(struct device_node *node, long param, long value)
284 {
285 	switch(param) {
286 	case 0:
287 		return simple_feature_tweak(node, macio_ohare,
288 			OHARE_FCR, OH_IDE0_RESET_N, !value);
289 	case 1:
290 		return simple_feature_tweak(node, macio_ohare,
291 			OHARE_FCR, OH_IDE1_RESET_N, !value);
292 	default:
293 		return -ENODEV;
294 	}
295 }
296 
ohare_sleep_state(struct device_node * node,long param,long value)297 static long ohare_sleep_state(struct device_node *node, long param, long value)
298 {
299 	struct macio_chip*	macio = &macio_chips[0];
300 
301 	if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
302 		return -EPERM;
303 	if (value == 1) {
304 		MACIO_BIC(OHARE_FCR, OH_IOBUS_ENABLE);
305 	} else if (value == 0) {
306 		MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
307 	}
308 
309 	return 0;
310 }
311 
heathrow_modem_enable(struct device_node * node,long param,long value)312 static long heathrow_modem_enable(struct device_node *node, long param,
313 				  long value)
314 {
315 	struct macio_chip*	macio;
316 	u8			gpio;
317 	unsigned long		flags;
318 
319 	macio = macio_find(node, macio_unknown);
320 	if (!macio)
321 		return -ENODEV;
322 	gpio = MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1;
323 	if (!value) {
324 		LOCK(flags);
325 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
326 		UNLOCK(flags);
327 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
328 		mdelay(250);
329 	}
330 	if (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
331 	    pmac_mb.model_id != PMAC_TYPE_YIKES) {
332 		LOCK(flags);
333 		if (value)
334 			MACIO_BIC(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
335 		else
336 			MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
337 		UNLOCK(flags);
338 		(void)MACIO_IN32(HEATHROW_FCR);
339 		mdelay(250);
340 	}
341 	if (value) {
342 		LOCK(flags);
343 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
344 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
345 		UNLOCK(flags); mdelay(250); LOCK(flags);
346 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
347 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
348 		UNLOCK(flags); mdelay(250); LOCK(flags);
349 		MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
350 		(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
351 		UNLOCK(flags); mdelay(250);
352 	}
353 	return 0;
354 }
355 
heathrow_floppy_enable(struct device_node * node,long param,long value)356 static long heathrow_floppy_enable(struct device_node *node, long param,
357 				   long value)
358 {
359 	return simple_feature_tweak(node, macio_unknown,
360 		HEATHROW_FCR,
361 		HRW_SWIM_ENABLE|HRW_BAY_FLOPPY_ENABLE,
362 		value);
363 }
364 
heathrow_mesh_enable(struct device_node * node,long param,long value)365 static long heathrow_mesh_enable(struct device_node *node, long param,
366 				 long value)
367 {
368 	struct macio_chip*	macio;
369 	unsigned long		flags;
370 
371 	macio = macio_find(node, macio_unknown);
372 	if (!macio)
373 		return -ENODEV;
374 	LOCK(flags);
375 	/* Set clear mesh cell enable */
376 	if (value)
377 		MACIO_BIS(HEATHROW_FCR, HRW_MESH_ENABLE);
378 	else
379 		MACIO_BIC(HEATHROW_FCR, HRW_MESH_ENABLE);
380 	(void)MACIO_IN32(HEATHROW_FCR);
381 	udelay(10);
382 	/* Set/Clear termination power */
383 	if (value)
384 		MACIO_BIC(HEATHROW_MBCR, 0x04000000);
385 	else
386 		MACIO_BIS(HEATHROW_MBCR, 0x04000000);
387 	(void)MACIO_IN32(HEATHROW_MBCR);
388 	udelay(10);
389 	UNLOCK(flags);
390 
391 	return 0;
392 }
393 
heathrow_ide_enable(struct device_node * node,long param,long value)394 static long heathrow_ide_enable(struct device_node *node, long param,
395 				long value)
396 {
397 	switch(param) {
398 	case 0:
399 		return simple_feature_tweak(node, macio_unknown,
400 			HEATHROW_FCR, HRW_IDE0_ENABLE, value);
401 	case 1:
402 		return simple_feature_tweak(node, macio_unknown,
403 			HEATHROW_FCR, HRW_BAY_IDE_ENABLE, value);
404 	default:
405 		return -ENODEV;
406 	}
407 }
408 
heathrow_ide_reset(struct device_node * node,long param,long value)409 static long heathrow_ide_reset(struct device_node *node, long param,
410 			       long value)
411 {
412 	switch(param) {
413 	case 0:
414 		return simple_feature_tweak(node, macio_unknown,
415 			HEATHROW_FCR, HRW_IDE0_RESET_N, !value);
416 	case 1:
417 		return simple_feature_tweak(node, macio_unknown,
418 			HEATHROW_FCR, HRW_IDE1_RESET_N, !value);
419 	default:
420 		return -ENODEV;
421 	}
422 }
423 
heathrow_bmac_enable(struct device_node * node,long param,long value)424 static long heathrow_bmac_enable(struct device_node *node, long param,
425 				 long value)
426 {
427 	struct macio_chip*	macio;
428 	unsigned long		flags;
429 
430 	macio = macio_find(node, 0);
431 	if (!macio)
432 		return -ENODEV;
433 	if (value) {
434 		LOCK(flags);
435 		MACIO_BIS(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
436 		MACIO_BIS(HEATHROW_FCR, HRW_BMAC_RESET);
437 		UNLOCK(flags);
438 		(void)MACIO_IN32(HEATHROW_FCR);
439 		mdelay(10);
440 		LOCK(flags);
441 		MACIO_BIC(HEATHROW_FCR, HRW_BMAC_RESET);
442 		UNLOCK(flags);
443 		(void)MACIO_IN32(HEATHROW_FCR);
444 		mdelay(10);
445 	} else {
446 		LOCK(flags);
447 		MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
448 		UNLOCK(flags);
449 	}
450 	return 0;
451 }
452 
heathrow_sound_enable(struct device_node * node,long param,long value)453 static long heathrow_sound_enable(struct device_node *node, long param,
454 				  long value)
455 {
456 	struct macio_chip*	macio;
457 	unsigned long		flags;
458 
459 	/* B&W G3 and Yikes don't support that properly (the
460 	 * sound appear to never come back after being shut down).
461 	 */
462 	if (pmac_mb.model_id == PMAC_TYPE_YOSEMITE ||
463 	    pmac_mb.model_id == PMAC_TYPE_YIKES)
464 		return 0;
465 
466 	macio = macio_find(node, 0);
467 	if (!macio)
468 		return -ENODEV;
469 	if (value) {
470 		LOCK(flags);
471 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
472 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
473 		UNLOCK(flags);
474 		(void)MACIO_IN32(HEATHROW_FCR);
475 	} else {
476 		LOCK(flags);
477 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
478 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
479 		UNLOCK(flags);
480 	}
481 	return 0;
482 }
483 
484 static u32 save_fcr[6];
485 static u32 save_mbcr;
486 static struct dbdma_regs save_dbdma[13];
487 static struct dbdma_regs save_alt_dbdma[13];
488 
dbdma_save(struct macio_chip * macio,struct dbdma_regs * save)489 static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
490 {
491 	int i;
492 
493 	/* Save state & config of DBDMA channels */
494 	for (i = 0; i < 13; i++) {
495 		volatile struct dbdma_regs __iomem * chan = (void __iomem *)
496 			(macio->base + ((0x8000+i*0x100)>>2));
497 		save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
498 		save[i].cmdptr = in_le32(&chan->cmdptr);
499 		save[i].intr_sel = in_le32(&chan->intr_sel);
500 		save[i].br_sel = in_le32(&chan->br_sel);
501 		save[i].wait_sel = in_le32(&chan->wait_sel);
502 	}
503 }
504 
dbdma_restore(struct macio_chip * macio,struct dbdma_regs * save)505 static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
506 {
507 	int i;
508 
509 	/* Save state & config of DBDMA channels */
510 	for (i = 0; i < 13; i++) {
511 		volatile struct dbdma_regs __iomem * chan = (void __iomem *)
512 			(macio->base + ((0x8000+i*0x100)>>2));
513 		out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
514 		while (in_le32(&chan->status) & ACTIVE)
515 			mb();
516 		out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
517 		out_le32(&chan->cmdptr, save[i].cmdptr);
518 		out_le32(&chan->intr_sel, save[i].intr_sel);
519 		out_le32(&chan->br_sel, save[i].br_sel);
520 		out_le32(&chan->wait_sel, save[i].wait_sel);
521 	}
522 }
523 
heathrow_sleep(struct macio_chip * macio,int secondary)524 static void heathrow_sleep(struct macio_chip *macio, int secondary)
525 {
526 	if (secondary) {
527 		dbdma_save(macio, save_alt_dbdma);
528 		save_fcr[2] = MACIO_IN32(0x38);
529 		save_fcr[3] = MACIO_IN32(0x3c);
530 	} else {
531 		dbdma_save(macio, save_dbdma);
532 		save_fcr[0] = MACIO_IN32(0x38);
533 		save_fcr[1] = MACIO_IN32(0x3c);
534 		save_mbcr = MACIO_IN32(0x34);
535 		/* Make sure sound is shut down */
536 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
537 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
538 		/* This seems to be necessary as well or the fan
539 		 * keeps coming up and battery drains fast */
540 		MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
541 		MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
542 		/* Make sure eth is down even if module or sleep
543 		 * won't work properly */
544 		MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
545 	}
546 	/* Make sure modem is shut down */
547 	MACIO_OUT8(HRW_GPIO_MODEM_RESET,
548 		MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
549 	MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
550 	MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
551 
552 	/* Let things settle */
553 	(void)MACIO_IN32(HEATHROW_FCR);
554 }
555 
heathrow_wakeup(struct macio_chip * macio,int secondary)556 static void heathrow_wakeup(struct macio_chip *macio, int secondary)
557 {
558 	if (secondary) {
559 		MACIO_OUT32(0x38, save_fcr[2]);
560 		(void)MACIO_IN32(0x38);
561 		mdelay(1);
562 		MACIO_OUT32(0x3c, save_fcr[3]);
563 		(void)MACIO_IN32(0x38);
564 		mdelay(10);
565 		dbdma_restore(macio, save_alt_dbdma);
566 	} else {
567 		MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
568 		(void)MACIO_IN32(0x38);
569 		mdelay(1);
570 		MACIO_OUT32(0x3c, save_fcr[1]);
571 		(void)MACIO_IN32(0x38);
572 		mdelay(1);
573 		MACIO_OUT32(0x34, save_mbcr);
574 		(void)MACIO_IN32(0x38);
575 		mdelay(10);
576 		dbdma_restore(macio, save_dbdma);
577 	}
578 }
579 
heathrow_sleep_state(struct device_node * node,long param,long value)580 static long heathrow_sleep_state(struct device_node *node, long param,
581 				 long value)
582 {
583 	if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
584 		return -EPERM;
585 	if (value == 1) {
586 		if (macio_chips[1].type == macio_gatwick)
587 			heathrow_sleep(&macio_chips[0], 1);
588 		heathrow_sleep(&macio_chips[0], 0);
589 	} else if (value == 0) {
590 		heathrow_wakeup(&macio_chips[0], 0);
591 		if (macio_chips[1].type == macio_gatwick)
592 			heathrow_wakeup(&macio_chips[0], 1);
593 	}
594 	return 0;
595 }
596 
core99_scc_enable(struct device_node * node,long param,long value)597 static long core99_scc_enable(struct device_node *node, long param, long value)
598 {
599 	struct macio_chip*	macio;
600 	unsigned long		flags;
601 	unsigned long		chan_mask;
602 	u32			fcr;
603 
604 	macio = macio_find(node, 0);
605 	if (!macio)
606 		return -ENODEV;
607 	if (of_node_name_eq(node, "ch-a"))
608 		chan_mask = MACIO_FLAG_SCCA_ON;
609 	else if (of_node_name_eq(node, "ch-b"))
610 		chan_mask = MACIO_FLAG_SCCB_ON;
611 	else
612 		return -ENODEV;
613 
614 	if (value) {
615 		int need_reset_scc = 0;
616 		int need_reset_irda = 0;
617 
618 		LOCK(flags);
619 		fcr = MACIO_IN32(KEYLARGO_FCR0);
620 		/* Check if scc cell need enabling */
621 		if (!(fcr & KL0_SCC_CELL_ENABLE)) {
622 			fcr |= KL0_SCC_CELL_ENABLE;
623 			need_reset_scc = 1;
624 		}
625 		if (chan_mask & MACIO_FLAG_SCCA_ON) {
626 			fcr |= KL0_SCCA_ENABLE;
627 			/* Don't enable line drivers for I2S modem */
628 			if ((param & 0xfff) == PMAC_SCC_I2S1)
629 				fcr &= ~KL0_SCC_A_INTF_ENABLE;
630 			else
631 				fcr |= KL0_SCC_A_INTF_ENABLE;
632 		}
633 		if (chan_mask & MACIO_FLAG_SCCB_ON) {
634 			fcr |= KL0_SCCB_ENABLE;
635 			/* Perform irda specific inits */
636 			if ((param & 0xfff) == PMAC_SCC_IRDA) {
637 				fcr &= ~KL0_SCC_B_INTF_ENABLE;
638 				fcr |= KL0_IRDA_ENABLE;
639 				fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
640 				fcr |= KL0_IRDA_SOURCE1_SEL;
641 				fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
642 				fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
643 				need_reset_irda = 1;
644 			} else
645 				fcr |= KL0_SCC_B_INTF_ENABLE;
646 		}
647 		MACIO_OUT32(KEYLARGO_FCR0, fcr);
648 		macio->flags |= chan_mask;
649 		if (need_reset_scc)  {
650 			MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
651 			(void)MACIO_IN32(KEYLARGO_FCR0);
652 			UNLOCK(flags);
653 			mdelay(15);
654 			LOCK(flags);
655 			MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
656 		}
657 		if (need_reset_irda)  {
658 			MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
659 			(void)MACIO_IN32(KEYLARGO_FCR0);
660 			UNLOCK(flags);
661 			mdelay(15);
662 			LOCK(flags);
663 			MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
664 		}
665 		UNLOCK(flags);
666 		if (param & PMAC_SCC_FLAG_XMON)
667 			macio->flags |= MACIO_FLAG_SCC_LOCKED;
668 	} else {
669 		if (macio->flags & MACIO_FLAG_SCC_LOCKED)
670 			return -EPERM;
671 		LOCK(flags);
672 		fcr = MACIO_IN32(KEYLARGO_FCR0);
673 		if (chan_mask & MACIO_FLAG_SCCA_ON)
674 			fcr &= ~KL0_SCCA_ENABLE;
675 		if (chan_mask & MACIO_FLAG_SCCB_ON) {
676 			fcr &= ~KL0_SCCB_ENABLE;
677 			/* Perform irda specific clears */
678 			if ((param & 0xfff) == PMAC_SCC_IRDA) {
679 				fcr &= ~KL0_IRDA_ENABLE;
680 				fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
681 				fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
682 				fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
683 			}
684 		}
685 		MACIO_OUT32(KEYLARGO_FCR0, fcr);
686 		if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
687 			fcr &= ~KL0_SCC_CELL_ENABLE;
688 			MACIO_OUT32(KEYLARGO_FCR0, fcr);
689 		}
690 		macio->flags &= ~(chan_mask);
691 		UNLOCK(flags);
692 		mdelay(10);
693 	}
694 	return 0;
695 }
696 
697 static long
core99_modem_enable(struct device_node * node,long param,long value)698 core99_modem_enable(struct device_node *node, long param, long value)
699 {
700 	struct macio_chip*	macio;
701 	u8			gpio;
702 	unsigned long		flags;
703 
704 	/* Hack for internal USB modem */
705 	if (node == NULL) {
706 		if (macio_chips[0].type != macio_keylargo)
707 			return -ENODEV;
708 		node = macio_chips[0].of_node;
709 	}
710 	macio = macio_find(node, 0);
711 	if (!macio)
712 		return -ENODEV;
713 	gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
714 	gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
715 	gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
716 
717 	if (!value) {
718 		LOCK(flags);
719 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
720 		UNLOCK(flags);
721 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
722 		mdelay(250);
723 	}
724 	LOCK(flags);
725 	if (value) {
726 		MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
727 		UNLOCK(flags);
728 		(void)MACIO_IN32(KEYLARGO_FCR2);
729 		mdelay(250);
730 	} else {
731 		MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
732 		UNLOCK(flags);
733 	}
734 	if (value) {
735 		LOCK(flags);
736 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
737 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
738 		UNLOCK(flags); mdelay(250); LOCK(flags);
739 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
740 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
741 		UNLOCK(flags); mdelay(250); LOCK(flags);
742 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
743 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
744 		UNLOCK(flags); mdelay(250);
745 	}
746 	return 0;
747 }
748 
749 static long
pangea_modem_enable(struct device_node * node,long param,long value)750 pangea_modem_enable(struct device_node *node, long param, long value)
751 {
752 	struct macio_chip*	macio;
753 	u8			gpio;
754 	unsigned long		flags;
755 
756 	/* Hack for internal USB modem */
757 	if (node == NULL) {
758 		if (macio_chips[0].type != macio_pangea &&
759 		    macio_chips[0].type != macio_intrepid)
760 			return -ENODEV;
761 		node = macio_chips[0].of_node;
762 	}
763 	macio = macio_find(node, 0);
764 	if (!macio)
765 		return -ENODEV;
766 	gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
767 	gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
768 	gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
769 
770 	if (!value) {
771 		LOCK(flags);
772 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
773 		UNLOCK(flags);
774 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
775 		mdelay(250);
776 	}
777 	LOCK(flags);
778 	if (value) {
779 		MACIO_OUT8(KL_GPIO_MODEM_POWER,
780 			KEYLARGO_GPIO_OUTPUT_ENABLE);
781 		UNLOCK(flags);
782 		(void)MACIO_IN32(KEYLARGO_FCR2);
783 		mdelay(250);
784 	} else {
785 		MACIO_OUT8(KL_GPIO_MODEM_POWER,
786 			KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
787 		UNLOCK(flags);
788 	}
789 	if (value) {
790 		LOCK(flags);
791 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
792 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
793 		UNLOCK(flags); mdelay(250); LOCK(flags);
794 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
795 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
796 		UNLOCK(flags); mdelay(250); LOCK(flags);
797 		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
798 		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
799 		UNLOCK(flags); mdelay(250);
800 	}
801 	return 0;
802 }
803 
804 static long
core99_ata100_enable(struct device_node * node,long value)805 core99_ata100_enable(struct device_node *node, long value)
806 {
807 	unsigned long flags;
808 	struct pci_dev *pdev = NULL;
809 	u8 pbus, pid;
810 	int rc;
811 
812 	if (uninorth_rev < 0x24)
813 		return -ENODEV;
814 
815 	LOCK(flags);
816 	if (value)
817 		UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
818 	else
819 		UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
820 	(void)UN_IN(UNI_N_CLOCK_CNTL);
821 	UNLOCK(flags);
822 	udelay(20);
823 
824 	if (value) {
825 		if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
826 			pdev = pci_get_domain_bus_and_slot(0, pbus, pid);
827 		if (pdev == NULL)
828 			return 0;
829 		rc = pci_enable_device(pdev);
830 		if (rc == 0)
831 			pci_set_master(pdev);
832 		pci_dev_put(pdev);
833 		if (rc)
834 			return rc;
835 	}
836 	return 0;
837 }
838 
839 static long
core99_ide_enable(struct device_node * node,long param,long value)840 core99_ide_enable(struct device_node *node, long param, long value)
841 {
842 	/* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
843 	 * based ata-100
844 	 */
845 	switch(param) {
846 	    case 0:
847 		return simple_feature_tweak(node, macio_unknown,
848 			KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
849 	    case 1:
850 		return simple_feature_tweak(node, macio_unknown,
851 			KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
852 	    case 2:
853 		return simple_feature_tweak(node, macio_unknown,
854 			KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
855 	    case 3:
856 		return core99_ata100_enable(node, value);
857 	    default:
858 		return -ENODEV;
859 	}
860 }
861 
862 static long
core99_ide_reset(struct device_node * node,long param,long value)863 core99_ide_reset(struct device_node *node, long param, long value)
864 {
865 	switch(param) {
866 	    case 0:
867 		return simple_feature_tweak(node, macio_unknown,
868 			KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
869 	    case 1:
870 		return simple_feature_tweak(node, macio_unknown,
871 			KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
872 	    case 2:
873 		return simple_feature_tweak(node, macio_unknown,
874 			KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
875 	    default:
876 		return -ENODEV;
877 	}
878 }
879 
880 static long
core99_gmac_enable(struct device_node * node,long param,long value)881 core99_gmac_enable(struct device_node *node, long param, long value)
882 {
883 	unsigned long flags;
884 
885 	LOCK(flags);
886 	if (value)
887 		UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
888 	else
889 		UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
890 	(void)UN_IN(UNI_N_CLOCK_CNTL);
891 	UNLOCK(flags);
892 	udelay(20);
893 
894 	return 0;
895 }
896 
897 static long
core99_gmac_phy_reset(struct device_node * node,long param,long value)898 core99_gmac_phy_reset(struct device_node *node, long param, long value)
899 {
900 	unsigned long flags;
901 	struct macio_chip *macio;
902 
903 	macio = &macio_chips[0];
904 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
905 	    macio->type != macio_intrepid)
906 		return -ENODEV;
907 
908 	LOCK(flags);
909 	MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
910 	(void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
911 	UNLOCK(flags);
912 	mdelay(10);
913 	LOCK(flags);
914 	MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
915 		KEYLARGO_GPIO_OUTOUT_DATA);
916 	UNLOCK(flags);
917 	mdelay(10);
918 
919 	return 0;
920 }
921 
922 static long
core99_sound_chip_enable(struct device_node * node,long param,long value)923 core99_sound_chip_enable(struct device_node *node, long param, long value)
924 {
925 	struct macio_chip*	macio;
926 	unsigned long		flags;
927 
928 	macio = macio_find(node, 0);
929 	if (!macio)
930 		return -ENODEV;
931 
932 	/* Do a better probe code, screamer G4 desktops &
933 	 * iMacs can do that too, add a recalibrate  in
934 	 * the driver as well
935 	 */
936 	if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
937 	    pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
938 		LOCK(flags);
939 		if (value)
940 			MACIO_OUT8(KL_GPIO_SOUND_POWER,
941 				KEYLARGO_GPIO_OUTPUT_ENABLE |
942 				KEYLARGO_GPIO_OUTOUT_DATA);
943 		else
944 			MACIO_OUT8(KL_GPIO_SOUND_POWER,
945 				KEYLARGO_GPIO_OUTPUT_ENABLE);
946 		(void)MACIO_IN8(KL_GPIO_SOUND_POWER);
947 		UNLOCK(flags);
948 	}
949 	return 0;
950 }
951 
952 static long
core99_airport_enable(struct device_node * node,long param,long value)953 core99_airport_enable(struct device_node *node, long param, long value)
954 {
955 	struct macio_chip*	macio;
956 	unsigned long		flags;
957 	int			state;
958 
959 	macio = macio_find(node, 0);
960 	if (!macio)
961 		return -ENODEV;
962 
963 	/* Hint: we allow passing of macio itself for the sake of the
964 	 * sleep code
965 	 */
966 	if (node != macio->of_node &&
967 	    (!node->parent || node->parent != macio->of_node))
968 		return -ENODEV;
969 	state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
970 	if (value == state)
971 		return 0;
972 	if (value) {
973 		/* This code is a reproduction of OF enable-cardslot
974 		 * and init-wireless methods, slightly hacked until
975 		 * I got it working.
976 		 */
977 		LOCK(flags);
978 		MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
979 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
980 		UNLOCK(flags);
981 		mdelay(10);
982 		LOCK(flags);
983 		MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
984 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
985 		UNLOCK(flags);
986 
987 		mdelay(10);
988 
989 		LOCK(flags);
990 		MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
991 		(void)MACIO_IN32(KEYLARGO_FCR2);
992 		udelay(10);
993 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
994 		(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
995 		udelay(10);
996 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
997 		(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
998 		udelay(10);
999 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
1000 		(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
1001 		udelay(10);
1002 		MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
1003 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
1004 		udelay(10);
1005 		MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
1006 		(void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
1007 		UNLOCK(flags);
1008 		udelay(10);
1009 		MACIO_OUT32(0x1c000, 0);
1010 		mdelay(1);
1011 		MACIO_OUT8(0x1a3e0, 0x41);
1012 		(void)MACIO_IN8(0x1a3e0);
1013 		udelay(10);
1014 		LOCK(flags);
1015 		MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
1016 		(void)MACIO_IN32(KEYLARGO_FCR2);
1017 		UNLOCK(flags);
1018 		mdelay(100);
1019 
1020 		macio->flags |= MACIO_FLAG_AIRPORT_ON;
1021 	} else {
1022 		LOCK(flags);
1023 		MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1024 		(void)MACIO_IN32(KEYLARGO_FCR2);
1025 		MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
1026 		MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
1027 		MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
1028 		MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
1029 		MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
1030 		(void)MACIO_IN8(KL_GPIO_AIRPORT_4);
1031 		UNLOCK(flags);
1032 
1033 		macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
1034 	}
1035 	return 0;
1036 }
1037 
1038 #ifdef CONFIG_SMP
1039 static long
core99_reset_cpu(struct device_node * node,long param,long value)1040 core99_reset_cpu(struct device_node *node, long param, long value)
1041 {
1042 	unsigned int reset_io = 0;
1043 	unsigned long flags;
1044 	struct macio_chip *macio;
1045 	struct device_node *np;
1046 	const int dflt_reset_lines[] = {	KL_GPIO_RESET_CPU0,
1047 						KL_GPIO_RESET_CPU1,
1048 						KL_GPIO_RESET_CPU2,
1049 						KL_GPIO_RESET_CPU3 };
1050 
1051 	macio = &macio_chips[0];
1052 	if (macio->type != macio_keylargo)
1053 		return -ENODEV;
1054 
1055 	for_each_of_cpu_node(np) {
1056 		const u32 *num = of_get_property(np, "reg", NULL);
1057 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
1058 		if (num == NULL || rst == NULL)
1059 			continue;
1060 		if (param == *num) {
1061 			reset_io = *rst;
1062 			break;
1063 		}
1064 	}
1065 	if (np == NULL || reset_io == 0)
1066 		reset_io = dflt_reset_lines[param];
1067 
1068 	LOCK(flags);
1069 	MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1070 	(void)MACIO_IN8(reset_io);
1071 	udelay(1);
1072 	MACIO_OUT8(reset_io, 0);
1073 	(void)MACIO_IN8(reset_io);
1074 	UNLOCK(flags);
1075 
1076 	return 0;
1077 }
1078 #endif /* CONFIG_SMP */
1079 
1080 static long
core99_usb_enable(struct device_node * node,long param,long value)1081 core99_usb_enable(struct device_node *node, long param, long value)
1082 {
1083 	struct macio_chip *macio;
1084 	unsigned long flags;
1085 	const char *prop;
1086 	int number;
1087 	u32 reg;
1088 
1089 	macio = &macio_chips[0];
1090 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1091 	    macio->type != macio_intrepid)
1092 		return -ENODEV;
1093 
1094 	prop = of_get_property(node, "AAPL,clock-id", NULL);
1095 	if (!prop)
1096 		return -ENODEV;
1097 	if (strncmp(prop, "usb0u048", 8) == 0)
1098 		number = 0;
1099 	else if (strncmp(prop, "usb1u148", 8) == 0)
1100 		number = 2;
1101 	else if (strncmp(prop, "usb2u248", 8) == 0)
1102 		number = 4;
1103 	else
1104 		return -ENODEV;
1105 
1106 	/* Sorry for the brute-force locking, but this is only used during
1107 	 * sleep and the timing seem to be critical
1108 	 */
1109 	LOCK(flags);
1110 	if (value) {
1111 		/* Turn ON */
1112 		if (number == 0) {
1113 			MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1114 			(void)MACIO_IN32(KEYLARGO_FCR0);
1115 			UNLOCK(flags);
1116 			mdelay(1);
1117 			LOCK(flags);
1118 			MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1119 		} else if (number == 2) {
1120 			MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1121 			UNLOCK(flags);
1122 			(void)MACIO_IN32(KEYLARGO_FCR0);
1123 			mdelay(1);
1124 			LOCK(flags);
1125 			MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1126 		} else if (number == 4) {
1127 			MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1128 			UNLOCK(flags);
1129 			(void)MACIO_IN32(KEYLARGO_FCR1);
1130 			mdelay(1);
1131 			LOCK(flags);
1132 			MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
1133 		}
1134 		if (number < 4) {
1135 			reg = MACIO_IN32(KEYLARGO_FCR4);
1136 			reg &=	~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1137 				KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
1138 			reg &=	~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1139 				KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
1140 			MACIO_OUT32(KEYLARGO_FCR4, reg);
1141 			(void)MACIO_IN32(KEYLARGO_FCR4);
1142 			udelay(10);
1143 		} else {
1144 			reg = MACIO_IN32(KEYLARGO_FCR3);
1145 			reg &=	~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1146 				KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
1147 			reg &=	~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1148 				KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
1149 			MACIO_OUT32(KEYLARGO_FCR3, reg);
1150 			(void)MACIO_IN32(KEYLARGO_FCR3);
1151 			udelay(10);
1152 		}
1153 		if (macio->type == macio_intrepid) {
1154 			/* wait for clock stopped bits to clear */
1155 			u32 test0 = 0, test1 = 0;
1156 			u32 status0, status1;
1157 			int timeout = 1000;
1158 
1159 			UNLOCK(flags);
1160 			switch (number) {
1161 			case 0:
1162 				test0 = UNI_N_CLOCK_STOPPED_USB0;
1163 				test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
1164 				break;
1165 			case 2:
1166 				test0 = UNI_N_CLOCK_STOPPED_USB1;
1167 				test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
1168 				break;
1169 			case 4:
1170 				test0 = UNI_N_CLOCK_STOPPED_USB2;
1171 				test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
1172 				break;
1173 			}
1174 			do {
1175 				if (--timeout <= 0) {
1176 					printk(KERN_ERR "core99_usb_enable: "
1177 					       "Timeout waiting for clocks\n");
1178 					break;
1179 				}
1180 				mdelay(1);
1181 				status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
1182 				status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
1183 			} while ((status0 & test0) | (status1 & test1));
1184 			LOCK(flags);
1185 		}
1186 	} else {
1187 		/* Turn OFF */
1188 		if (number < 4) {
1189 			reg = MACIO_IN32(KEYLARGO_FCR4);
1190 			reg |=	KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1191 				KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
1192 			reg |=	KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1193 				KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
1194 			MACIO_OUT32(KEYLARGO_FCR4, reg);
1195 			(void)MACIO_IN32(KEYLARGO_FCR4);
1196 			udelay(1);
1197 		} else {
1198 			reg = MACIO_IN32(KEYLARGO_FCR3);
1199 			reg |=	KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1200 				KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
1201 			reg |=	KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1202 				KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
1203 			MACIO_OUT32(KEYLARGO_FCR3, reg);
1204 			(void)MACIO_IN32(KEYLARGO_FCR3);
1205 			udelay(1);
1206 		}
1207 		if (number == 0) {
1208 			if (macio->type != macio_intrepid)
1209 				MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1210 			(void)MACIO_IN32(KEYLARGO_FCR0);
1211 			udelay(1);
1212 			MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1213 			(void)MACIO_IN32(KEYLARGO_FCR0);
1214 		} else if (number == 2) {
1215 			if (macio->type != macio_intrepid)
1216 				MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1217 			(void)MACIO_IN32(KEYLARGO_FCR0);
1218 			udelay(1);
1219 			MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1220 			(void)MACIO_IN32(KEYLARGO_FCR0);
1221 		} else if (number == 4) {
1222 			udelay(1);
1223 			MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1224 			(void)MACIO_IN32(KEYLARGO_FCR1);
1225 		}
1226 		udelay(1);
1227 	}
1228 	UNLOCK(flags);
1229 
1230 	return 0;
1231 }
1232 
1233 static long
core99_firewire_enable(struct device_node * node,long param,long value)1234 core99_firewire_enable(struct device_node *node, long param, long value)
1235 {
1236 	unsigned long flags;
1237 	struct macio_chip *macio;
1238 
1239 	macio = &macio_chips[0];
1240 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1241 	    macio->type != macio_intrepid)
1242 		return -ENODEV;
1243 	if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1244 		return -ENODEV;
1245 
1246 	LOCK(flags);
1247 	if (value) {
1248 		UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1249 		(void)UN_IN(UNI_N_CLOCK_CNTL);
1250 	} else {
1251 		UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1252 		(void)UN_IN(UNI_N_CLOCK_CNTL);
1253 	}
1254 	UNLOCK(flags);
1255 	mdelay(1);
1256 
1257 	return 0;
1258 }
1259 
1260 static long
core99_firewire_cable_power(struct device_node * node,long param,long value)1261 core99_firewire_cable_power(struct device_node *node, long param, long value)
1262 {
1263 	unsigned long flags;
1264 	struct macio_chip *macio;
1265 
1266 	/* Trick: we allow NULL node */
1267 	if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
1268 		return -ENODEV;
1269 	macio = &macio_chips[0];
1270 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1271 	    macio->type != macio_intrepid)
1272 		return -ENODEV;
1273 	if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1274 		return -ENODEV;
1275 
1276 	LOCK(flags);
1277 	if (value) {
1278 		MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
1279 		MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
1280 		udelay(10);
1281 	} else {
1282 		MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
1283 		MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
1284 	}
1285 	UNLOCK(flags);
1286 	mdelay(1);
1287 
1288 	return 0;
1289 }
1290 
1291 static long
intrepid_aack_delay_enable(struct device_node * node,long param,long value)1292 intrepid_aack_delay_enable(struct device_node *node, long param, long value)
1293 {
1294 	unsigned long flags;
1295 
1296 	if (uninorth_rev < 0xd2)
1297 		return -ENODEV;
1298 
1299 	LOCK(flags);
1300 	if (param)
1301 		UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1302 	else
1303 		UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1304 	UNLOCK(flags);
1305 
1306 	return 0;
1307 }
1308 
1309 
1310 #endif /* CONFIG_PPC64 */
1311 
1312 static long
core99_read_gpio(struct device_node * node,long param,long value)1313 core99_read_gpio(struct device_node *node, long param, long value)
1314 {
1315 	struct macio_chip *macio = &macio_chips[0];
1316 
1317 	return MACIO_IN8(param);
1318 }
1319 
1320 
1321 static long
core99_write_gpio(struct device_node * node,long param,long value)1322 core99_write_gpio(struct device_node *node, long param, long value)
1323 {
1324 	struct macio_chip *macio = &macio_chips[0];
1325 
1326 	MACIO_OUT8(param, (u8)(value & 0xff));
1327 	return 0;
1328 }
1329 
1330 #ifdef CONFIG_PPC64
g5_gmac_enable(struct device_node * node,long param,long value)1331 static long g5_gmac_enable(struct device_node *node, long param, long value)
1332 {
1333 	struct macio_chip *macio = &macio_chips[0];
1334 	unsigned long flags;
1335 
1336 	if (node == NULL)
1337 		return -ENODEV;
1338 
1339 	LOCK(flags);
1340 	if (value) {
1341 		MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1342 		mb();
1343 		k2_skiplist[0] = NULL;
1344 	} else {
1345 		k2_skiplist[0] = node;
1346 		mb();
1347 		MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1348 	}
1349 
1350 	UNLOCK(flags);
1351 	mdelay(1);
1352 
1353 	return 0;
1354 }
1355 
g5_fw_enable(struct device_node * node,long param,long value)1356 static long g5_fw_enable(struct device_node *node, long param, long value)
1357 {
1358 	struct macio_chip *macio = &macio_chips[0];
1359 	unsigned long flags;
1360 
1361 	if (node == NULL)
1362 		return -ENODEV;
1363 
1364 	LOCK(flags);
1365 	if (value) {
1366 		MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1367 		mb();
1368 		k2_skiplist[1] = NULL;
1369 	} else {
1370 		k2_skiplist[1] = node;
1371 		mb();
1372 		MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1373 	}
1374 
1375 	UNLOCK(flags);
1376 	mdelay(1);
1377 
1378 	return 0;
1379 }
1380 
g5_mpic_enable(struct device_node * node,long param,long value)1381 static long g5_mpic_enable(struct device_node *node, long param, long value)
1382 {
1383 	unsigned long flags;
1384 	struct device_node *parent = of_get_parent(node);
1385 	int is_u3;
1386 
1387 	if (parent == NULL)
1388 		return 0;
1389 	is_u3 = of_node_name_eq(parent, "u3") || of_node_name_eq(parent, "u4");
1390 	of_node_put(parent);
1391 	if (!is_u3)
1392 		return 0;
1393 
1394 	LOCK(flags);
1395 	UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
1396 	UNLOCK(flags);
1397 
1398 	return 0;
1399 }
1400 
g5_eth_phy_reset(struct device_node * node,long param,long value)1401 static long g5_eth_phy_reset(struct device_node *node, long param, long value)
1402 {
1403 	struct macio_chip *macio = &macio_chips[0];
1404 	struct device_node *phy;
1405 	int need_reset;
1406 
1407 	/*
1408 	 * We must not reset the combo PHYs, only the BCM5221 found in
1409 	 * the iMac G5.
1410 	 */
1411 	phy = of_get_next_child(node, NULL);
1412 	if (!phy)
1413 		return -ENODEV;
1414 	need_reset = of_device_is_compatible(phy, "B5221");
1415 	of_node_put(phy);
1416 	if (!need_reset)
1417 		return 0;
1418 
1419 	/* PHY reset is GPIO 29, not in device-tree unfortunately */
1420 	MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
1421 		   KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
1422 	/* Thankfully, this is now always called at a time when we can
1423 	 * schedule by sungem.
1424 	 */
1425 	msleep(10);
1426 	MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
1427 
1428 	return 0;
1429 }
1430 
g5_i2s_enable(struct device_node * node,long param,long value)1431 static long g5_i2s_enable(struct device_node *node, long param, long value)
1432 {
1433 	/* Very crude implementation for now */
1434 	struct macio_chip *macio = &macio_chips[0];
1435 	unsigned long flags;
1436 	int cell;
1437 	u32 fcrs[3][3] = {
1438 		{ 0,
1439 		  K2_FCR1_I2S0_CELL_ENABLE |
1440 		  K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE,
1441 		  KL3_I2S0_CLK18_ENABLE
1442 		},
1443 		{ KL0_SCC_A_INTF_ENABLE,
1444 		  K2_FCR1_I2S1_CELL_ENABLE |
1445 		  K2_FCR1_I2S1_CLK_ENABLE_BIT | K2_FCR1_I2S1_ENABLE,
1446 		  KL3_I2S1_CLK18_ENABLE
1447 		},
1448 		{ KL0_SCC_B_INTF_ENABLE,
1449 		  SH_FCR1_I2S2_CELL_ENABLE |
1450 		  SH_FCR1_I2S2_CLK_ENABLE_BIT | SH_FCR1_I2S2_ENABLE,
1451 		  SH_FCR3_I2S2_CLK18_ENABLE
1452 		},
1453 	};
1454 
1455 	if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1456 		return -ENODEV;
1457 	if (strncmp(node->name, "i2s-", 4))
1458 		return -ENODEV;
1459 	cell = node->name[4] - 'a';
1460 	switch(cell) {
1461 	case 0:
1462 	case 1:
1463 		break;
1464 	case 2:
1465 		if (macio->type == macio_shasta)
1466 			break;
1467 		fallthrough;
1468 	default:
1469 		return -ENODEV;
1470 	}
1471 
1472 	LOCK(flags);
1473 	if (value) {
1474 		MACIO_BIC(KEYLARGO_FCR0, fcrs[cell][0]);
1475 		MACIO_BIS(KEYLARGO_FCR1, fcrs[cell][1]);
1476 		MACIO_BIS(KEYLARGO_FCR3, fcrs[cell][2]);
1477 	} else {
1478 		MACIO_BIC(KEYLARGO_FCR3, fcrs[cell][2]);
1479 		MACIO_BIC(KEYLARGO_FCR1, fcrs[cell][1]);
1480 		MACIO_BIS(KEYLARGO_FCR0, fcrs[cell][0]);
1481 	}
1482 	udelay(10);
1483 	UNLOCK(flags);
1484 
1485 	return 0;
1486 }
1487 
1488 
1489 #ifdef CONFIG_SMP
g5_reset_cpu(struct device_node * node,long param,long value)1490 static long g5_reset_cpu(struct device_node *node, long param, long value)
1491 {
1492 	unsigned int reset_io = 0;
1493 	unsigned long flags;
1494 	struct macio_chip *macio;
1495 	struct device_node *np;
1496 
1497 	macio = &macio_chips[0];
1498 	if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1499 		return -ENODEV;
1500 
1501 	for_each_of_cpu_node(np) {
1502 		const u32 *num = of_get_property(np, "reg", NULL);
1503 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
1504 		if (num == NULL || rst == NULL)
1505 			continue;
1506 		if (param == *num) {
1507 			reset_io = *rst;
1508 			break;
1509 		}
1510 	}
1511 	if (np == NULL || reset_io == 0)
1512 		return -ENODEV;
1513 
1514 	LOCK(flags);
1515 	MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1516 	(void)MACIO_IN8(reset_io);
1517 	udelay(1);
1518 	MACIO_OUT8(reset_io, 0);
1519 	(void)MACIO_IN8(reset_io);
1520 	UNLOCK(flags);
1521 
1522 	return 0;
1523 }
1524 #endif /* CONFIG_SMP */
1525 
1526 /*
1527  * This can be called from pmac_smp so isn't static
1528  *
1529  * This takes the second CPU off the bus on dual CPU machines
1530  * running UP
1531  */
g5_phy_disable_cpu1(void)1532 void __init g5_phy_disable_cpu1(void)
1533 {
1534 	if (uninorth_maj == 3)
1535 		UN_OUT(U3_API_PHY_CONFIG_1, 0);
1536 }
1537 #endif /* CONFIG_PPC64 */
1538 
1539 #ifndef CONFIG_PPC64
1540 
1541 
1542 #ifdef CONFIG_PM
1543 static u32 save_gpio_levels[2];
1544 static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
1545 static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
1546 static u32 save_unin_clock_ctl;
1547 
keylargo_shutdown(struct macio_chip * macio,int sleep_mode)1548 static void keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
1549 {
1550 	u32 temp;
1551 
1552 	if (sleep_mode) {
1553 		mdelay(1);
1554 		MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
1555 		(void)MACIO_IN32(KEYLARGO_FCR0);
1556 		mdelay(1);
1557 	}
1558 
1559 	MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1560 				KL0_SCC_CELL_ENABLE |
1561 				KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
1562 				KL0_IRDA_CLK19_ENABLE);
1563 
1564 	MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
1565 	MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
1566 
1567 	MACIO_BIC(KEYLARGO_FCR1,
1568 		KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1569 		KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1570 		KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1571 		KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1572 		KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1573 		KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
1574 		KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
1575 		KL1_UIDE_ENABLE);
1576 
1577 	MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1578 	MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
1579 
1580 	temp = MACIO_IN32(KEYLARGO_FCR3);
1581 	if (macio->rev >= 2) {
1582 		temp |= KL3_SHUTDOWN_PLL2X;
1583 		if (sleep_mode)
1584 			temp |= KL3_SHUTDOWN_PLL_TOTAL;
1585 	}
1586 
1587 	temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1588 		KL3_SHUTDOWN_PLLKW35;
1589 	if (sleep_mode)
1590 		temp |= KL3_SHUTDOWN_PLLKW12;
1591 	temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
1592 		| KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1593 	if (sleep_mode)
1594 		temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
1595 	MACIO_OUT32(KEYLARGO_FCR3, temp);
1596 
1597 	/* Flush posted writes & wait a bit */
1598 	(void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1599 }
1600 
pangea_shutdown(struct macio_chip * macio,int sleep_mode)1601 static void pangea_shutdown(struct macio_chip *macio, int sleep_mode)
1602 {
1603 	u32 temp;
1604 
1605 	MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1606 				KL0_SCC_CELL_ENABLE |
1607 				KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
1608 
1609 	MACIO_BIC(KEYLARGO_FCR1,
1610 		KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1611 		KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1612 		KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1613 		KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1614 		KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1615 		KL1_UIDE_ENABLE);
1616 	if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1617 		MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1618 
1619 	MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1620 
1621 	temp = MACIO_IN32(KEYLARGO_FCR3);
1622 	temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1623 		KL3_SHUTDOWN_PLLKW35;
1624 	temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
1625 		| KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
1626 	if (sleep_mode)
1627 		temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
1628 	MACIO_OUT32(KEYLARGO_FCR3, temp);
1629 
1630 	/* Flush posted writes & wait a bit */
1631 	(void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1632 }
1633 
intrepid_shutdown(struct macio_chip * macio,int sleep_mode)1634 static void intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
1635 {
1636 	u32 temp;
1637 
1638 	MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1639 		  KL0_SCC_CELL_ENABLE);
1640 
1641 	MACIO_BIC(KEYLARGO_FCR1,
1642 		KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1643 		KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1644 		KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1645 		KL1_EIDE0_ENABLE);
1646 	if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1647 		MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1648 
1649 	temp = MACIO_IN32(KEYLARGO_FCR3);
1650 	temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
1651 		  KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1652 	if (sleep_mode)
1653 		temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
1654 	MACIO_OUT32(KEYLARGO_FCR3, temp);
1655 
1656 	/* Flush posted writes & wait a bit */
1657 	(void)MACIO_IN32(KEYLARGO_FCR0);
1658 	mdelay(10);
1659 }
1660 
1661 
1662 static int
core99_sleep(void)1663 core99_sleep(void)
1664 {
1665 	struct macio_chip *macio;
1666 	int i;
1667 
1668 	macio = &macio_chips[0];
1669 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1670 	    macio->type != macio_intrepid)
1671 		return -ENODEV;
1672 
1673 	/* We power off the wireless slot in case it was not done
1674 	 * by the driver. We don't power it on automatically however
1675 	 */
1676 	if (macio->flags & MACIO_FLAG_AIRPORT_ON)
1677 		core99_airport_enable(macio->of_node, 0, 0);
1678 
1679 	/* We power off the FW cable. Should be done by the driver... */
1680 	if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
1681 		core99_firewire_enable(NULL, 0, 0);
1682 		core99_firewire_cable_power(NULL, 0, 0);
1683 	}
1684 
1685 	/* We make sure int. modem is off (in case driver lost it) */
1686 	if (macio->type == macio_keylargo)
1687 		core99_modem_enable(macio->of_node, 0, 0);
1688 	else
1689 		pangea_modem_enable(macio->of_node, 0, 0);
1690 
1691 	/* We make sure the sound is off as well */
1692 	core99_sound_chip_enable(macio->of_node, 0, 0);
1693 
1694 	/*
1695 	 * Save various bits of KeyLargo
1696 	 */
1697 
1698 	/* Save the state of the various GPIOs */
1699 	save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
1700 	save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
1701 	for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1702 		save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
1703 	for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1704 		save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
1705 
1706 	/* Save the FCRs */
1707 	if (macio->type == macio_keylargo)
1708 		save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
1709 	save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
1710 	save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
1711 	save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
1712 	save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
1713 	save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
1714 	if (macio->type == macio_pangea || macio->type == macio_intrepid)
1715 		save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
1716 
1717 	/* Save state & config of DBDMA channels */
1718 	dbdma_save(macio, save_dbdma);
1719 
1720 	/*
1721 	 * Turn off as much as we can
1722 	 */
1723 	if (macio->type == macio_pangea)
1724 		pangea_shutdown(macio, 1);
1725 	else if (macio->type == macio_intrepid)
1726 		intrepid_shutdown(macio, 1);
1727 	else if (macio->type == macio_keylargo)
1728 		keylargo_shutdown(macio, 1);
1729 
1730 	/*
1731 	 * Put the host bridge to sleep
1732 	 */
1733 
1734 	save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
1735 	/* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
1736 	 * enabled !
1737 	 */
1738 	UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
1739 	       ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
1740 	udelay(100);
1741 	UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1742 	UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
1743 	mdelay(10);
1744 
1745 	/*
1746 	 * FIXME: A bit of black magic with OpenPIC (don't ask me why)
1747 	 */
1748 	if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1749 		MACIO_BIS(0x506e0, 0x00400000);
1750 		MACIO_BIS(0x506e0, 0x80000000);
1751 	}
1752 	return 0;
1753 }
1754 
1755 static int
core99_wake_up(void)1756 core99_wake_up(void)
1757 {
1758 	struct macio_chip *macio;
1759 	int i;
1760 
1761 	macio = &macio_chips[0];
1762 	if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1763 	    macio->type != macio_intrepid)
1764 		return -ENODEV;
1765 
1766 	/*
1767 	 * Wakeup the host bridge
1768 	 */
1769 	UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1770 	udelay(10);
1771 	UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1772 	udelay(10);
1773 
1774 	/*
1775 	 * Restore KeyLargo
1776 	 */
1777 
1778 	if (macio->type == macio_keylargo) {
1779 		MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
1780 		(void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
1781 	}
1782 	MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
1783 	(void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
1784 	MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
1785 	(void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
1786 	MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
1787 	(void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
1788 	MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
1789 	(void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
1790 	MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
1791 	(void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
1792 	if (macio->type == macio_pangea || macio->type == macio_intrepid) {
1793 		MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
1794 		(void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
1795 	}
1796 
1797 	dbdma_restore(macio, save_dbdma);
1798 
1799 	MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
1800 	MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
1801 	for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1802 		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
1803 	for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1804 		MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
1805 
1806 	/* FIXME more black magic with OpenPIC ... */
1807 	if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1808 		MACIO_BIC(0x506e0, 0x00400000);
1809 		MACIO_BIC(0x506e0, 0x80000000);
1810 	}
1811 
1812 	UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1813 	udelay(100);
1814 
1815 	return 0;
1816 }
1817 
1818 #endif /* CONFIG_PM */
1819 
1820 static long
core99_sleep_state(struct device_node * node,long param,long value)1821 core99_sleep_state(struct device_node *node, long param, long value)
1822 {
1823 	/* Param == 1 means to enter the "fake sleep" mode that is
1824 	 * used for CPU speed switch
1825 	 */
1826 	if (param == 1) {
1827 		if (value == 1) {
1828 			UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1829 			UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
1830 		} else {
1831 			UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1832 			udelay(10);
1833 			UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1834 			udelay(10);
1835 		}
1836 		return 0;
1837 	}
1838 	if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
1839 		return -EPERM;
1840 
1841 #ifdef CONFIG_PM
1842 	if (value == 1)
1843 		return core99_sleep();
1844 	else if (value == 0)
1845 		return core99_wake_up();
1846 
1847 #endif /* CONFIG_PM */
1848 	return 0;
1849 }
1850 
1851 #endif /* CONFIG_PPC64 */
1852 
1853 static long
generic_dev_can_wake(struct device_node * node,long param,long value)1854 generic_dev_can_wake(struct device_node *node, long param, long value)
1855 {
1856 	/* Todo: eventually check we are really dealing with on-board
1857 	 * video device ...
1858 	 */
1859 
1860 	if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
1861 		pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
1862 	return 0;
1863 }
1864 
generic_get_mb_info(struct device_node * node,long param,long value)1865 static long generic_get_mb_info(struct device_node *node, long param, long value)
1866 {
1867 	switch(param) {
1868 		case PMAC_MB_INFO_MODEL:
1869 			return pmac_mb.model_id;
1870 		case PMAC_MB_INFO_FLAGS:
1871 			return pmac_mb.board_flags;
1872 		case PMAC_MB_INFO_NAME:
1873 			/* hack hack hack... but should work */
1874 			*((const char **)value) = pmac_mb.model_name;
1875 			return 0;
1876 	}
1877 	return -EINVAL;
1878 }
1879 
1880 
1881 /*
1882  * Table definitions
1883  */
1884 
1885 /* Used on any machine
1886  */
1887 static struct feature_table_entry any_features[] = {
1888 	{ PMAC_FTR_GET_MB_INFO,		generic_get_mb_info },
1889 	{ PMAC_FTR_DEVICE_CAN_WAKE,	generic_dev_can_wake },
1890 	{ 0, NULL }
1891 };
1892 
1893 #ifndef CONFIG_PPC64
1894 
1895 /* OHare based motherboards. Currently, we only use these on the
1896  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
1897  * to have issues with turning on/off those asic cells
1898  */
1899 static struct feature_table_entry ohare_features[] = {
1900 	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
1901 	{ PMAC_FTR_SWIM3_ENABLE,	ohare_floppy_enable },
1902 	{ PMAC_FTR_MESH_ENABLE,		ohare_mesh_enable },
1903 	{ PMAC_FTR_IDE_ENABLE,		ohare_ide_enable},
1904 	{ PMAC_FTR_IDE_RESET,		ohare_ide_reset},
1905 	{ PMAC_FTR_SLEEP_STATE,		ohare_sleep_state },
1906 	{ 0, NULL }
1907 };
1908 
1909 /* Heathrow desktop machines (Beige G3).
1910  * Separated as some features couldn't be properly tested
1911  * and the serial port control bits appear to confuse it.
1912  */
1913 static struct feature_table_entry heathrow_desktop_features[] = {
1914 	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
1915 	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
1916 	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
1917 	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
1918 	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
1919 	{ 0, NULL }
1920 };
1921 
1922 /* Heathrow based laptop, that is the Wallstreet and mainstreet
1923  * powerbooks.
1924  */
1925 static struct feature_table_entry heathrow_laptop_features[] = {
1926 	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
1927 	{ PMAC_FTR_MODEM_ENABLE,	heathrow_modem_enable },
1928 	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
1929 	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
1930 	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
1931 	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
1932 	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
1933 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	heathrow_sound_enable },
1934 	{ PMAC_FTR_SLEEP_STATE,		heathrow_sleep_state },
1935 	{ 0, NULL }
1936 };
1937 
1938 /* Paddington based machines
1939  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
1940  */
1941 static struct feature_table_entry paddington_features[] = {
1942 	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
1943 	{ PMAC_FTR_MODEM_ENABLE,	heathrow_modem_enable },
1944 	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
1945 	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
1946 	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
1947 	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
1948 	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
1949 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	heathrow_sound_enable },
1950 	{ PMAC_FTR_SLEEP_STATE,		heathrow_sleep_state },
1951 	{ 0, NULL }
1952 };
1953 
1954 /* Core99 & MacRISC 2 machines (all machines released since the
1955  * iBook (included), that is all AGP machines, except pangea
1956  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
1957  * used on iBook2 & iMac "flow power".
1958  */
1959 static struct feature_table_entry core99_features[] = {
1960 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
1961 	{ PMAC_FTR_MODEM_ENABLE,	core99_modem_enable },
1962 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
1963 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
1964 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
1965 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
1966 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
1967 	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
1968 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
1969 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
1970 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
1971 #ifdef CONFIG_PM
1972 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
1973 #endif
1974 #ifdef CONFIG_SMP
1975 	{ PMAC_FTR_RESET_CPU,		core99_reset_cpu },
1976 #endif /* CONFIG_SMP */
1977 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
1978 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
1979 	{ 0, NULL }
1980 };
1981 
1982 /* RackMac
1983  */
1984 static struct feature_table_entry rackmac_features[] = {
1985 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
1986 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
1987 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
1988 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
1989 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
1990 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
1991 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
1992 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
1993 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
1994 #ifdef CONFIG_SMP
1995 	{ PMAC_FTR_RESET_CPU,		core99_reset_cpu },
1996 #endif /* CONFIG_SMP */
1997 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
1998 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
1999 	{ 0, NULL }
2000 };
2001 
2002 /* Pangea features
2003  */
2004 static struct feature_table_entry pangea_features[] = {
2005 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
2006 	{ PMAC_FTR_MODEM_ENABLE,	pangea_modem_enable },
2007 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
2008 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
2009 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
2010 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
2011 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
2012 	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
2013 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
2014 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
2015 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
2016 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
2017 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
2018 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
2019 	{ 0, NULL }
2020 };
2021 
2022 /* Intrepid features
2023  */
2024 static struct feature_table_entry intrepid_features[] = {
2025 	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
2026 	{ PMAC_FTR_MODEM_ENABLE,	pangea_modem_enable },
2027 	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
2028 	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
2029 	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
2030 	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
2031 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
2032 	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
2033 	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
2034 	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
2035 	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
2036 	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
2037 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
2038 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
2039 	{ PMAC_FTR_AACK_DELAY_ENABLE,	intrepid_aack_delay_enable },
2040 	{ 0, NULL }
2041 };
2042 
2043 #else /* CONFIG_PPC64 */
2044 
2045 /* G5 features
2046  */
2047 static struct feature_table_entry g5_features[] = {
2048 	{ PMAC_FTR_GMAC_ENABLE,		g5_gmac_enable },
2049 	{ PMAC_FTR_1394_ENABLE,		g5_fw_enable },
2050 	{ PMAC_FTR_ENABLE_MPIC,		g5_mpic_enable },
2051 	{ PMAC_FTR_GMAC_PHY_RESET,	g5_eth_phy_reset },
2052 	{ PMAC_FTR_SOUND_CHIP_ENABLE,	g5_i2s_enable },
2053 #ifdef CONFIG_SMP
2054 	{ PMAC_FTR_RESET_CPU,		g5_reset_cpu },
2055 #endif /* CONFIG_SMP */
2056 	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
2057 	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
2058 	{ 0, NULL }
2059 };
2060 
2061 #endif /* CONFIG_PPC64 */
2062 
2063 static struct pmac_mb_def pmac_mb_defs[] = {
2064 #ifndef CONFIG_PPC64
2065 	/*
2066 	 * Desktops
2067 	 */
2068 
2069 	{	"AAPL,8500",			"PowerMac 8500/8600",
2070 		PMAC_TYPE_PSURGE,		NULL,
2071 		0
2072 	},
2073 	{	"AAPL,9500",			"PowerMac 9500/9600",
2074 		PMAC_TYPE_PSURGE,		NULL,
2075 		0
2076 	},
2077 	{	"AAPL,7200",			"PowerMac 7200",
2078 		PMAC_TYPE_PSURGE,		NULL,
2079 		0
2080 	},
2081 	{	"AAPL,7300",			"PowerMac 7200/7300",
2082 		PMAC_TYPE_PSURGE,		NULL,
2083 		0
2084 	},
2085 	{	"AAPL,7500",			"PowerMac 7500",
2086 		PMAC_TYPE_PSURGE,		NULL,
2087 		0
2088 	},
2089 	{	"AAPL,ShinerESB",		"Apple Network Server",
2090 		PMAC_TYPE_ANS,			NULL,
2091 		0
2092 	},
2093 	{	"AAPL,e407",			"Alchemy",
2094 		PMAC_TYPE_ALCHEMY,		NULL,
2095 		0
2096 	},
2097 	{	"AAPL,e411",			"Gazelle",
2098 		PMAC_TYPE_GAZELLE,		NULL,
2099 		0
2100 	},
2101 	{	"AAPL,Gossamer",		"PowerMac G3 (Gossamer)",
2102 		PMAC_TYPE_GOSSAMER,		heathrow_desktop_features,
2103 		0
2104 	},
2105 	{	"AAPL,PowerMac G3",		"PowerMac G3 (Silk)",
2106 		PMAC_TYPE_SILK,			heathrow_desktop_features,
2107 		0
2108 	},
2109 	{	"PowerMac1,1",			"Blue&White G3",
2110 		PMAC_TYPE_YOSEMITE,		paddington_features,
2111 		0
2112 	},
2113 	{	"PowerMac1,2",			"PowerMac G4 PCI Graphics",
2114 		PMAC_TYPE_YIKES,		paddington_features,
2115 		0
2116 	},
2117 	{	"PowerMac2,1",			"iMac FireWire",
2118 		PMAC_TYPE_FW_IMAC,		core99_features,
2119 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2120 	},
2121 	{	"PowerMac2,2",			"iMac FireWire",
2122 		PMAC_TYPE_FW_IMAC,		core99_features,
2123 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2124 	},
2125 	{	"PowerMac3,1",			"PowerMac G4 AGP Graphics",
2126 		PMAC_TYPE_SAWTOOTH,		core99_features,
2127 		PMAC_MB_OLD_CORE99
2128 	},
2129 	{	"PowerMac3,2",			"PowerMac G4 AGP Graphics",
2130 		PMAC_TYPE_SAWTOOTH,		core99_features,
2131 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2132 	},
2133 	{	"PowerMac3,3",			"PowerMac G4 AGP Graphics",
2134 		PMAC_TYPE_SAWTOOTH,		core99_features,
2135 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2136 	},
2137 	{	"PowerMac3,4",			"PowerMac G4 Silver",
2138 		PMAC_TYPE_QUICKSILVER,		core99_features,
2139 		PMAC_MB_MAY_SLEEP
2140 	},
2141 	{	"PowerMac3,5",			"PowerMac G4 Silver",
2142 		PMAC_TYPE_QUICKSILVER,		core99_features,
2143 		PMAC_MB_MAY_SLEEP
2144 	},
2145 	{	"PowerMac3,6",			"PowerMac G4 Windtunnel",
2146 		PMAC_TYPE_WINDTUNNEL,		core99_features,
2147 		PMAC_MB_MAY_SLEEP,
2148 	},
2149 	{	"PowerMac4,1",			"iMac \"Flower Power\"",
2150 		PMAC_TYPE_PANGEA_IMAC,		pangea_features,
2151 		PMAC_MB_MAY_SLEEP
2152 	},
2153 	{	"PowerMac4,2",			"Flat panel iMac",
2154 		PMAC_TYPE_FLAT_PANEL_IMAC,	pangea_features,
2155 		PMAC_MB_CAN_SLEEP
2156 	},
2157 	{	"PowerMac4,4",			"eMac",
2158 		PMAC_TYPE_EMAC,			core99_features,
2159 		PMAC_MB_MAY_SLEEP
2160 	},
2161 	{	"PowerMac5,1",			"PowerMac G4 Cube",
2162 		PMAC_TYPE_CUBE,			core99_features,
2163 		PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2164 	},
2165 	{	"PowerMac6,1",			"Flat panel iMac",
2166 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2167 		PMAC_MB_MAY_SLEEP,
2168 	},
2169 	{	"PowerMac6,3",			"Flat panel iMac",
2170 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2171 		PMAC_MB_MAY_SLEEP,
2172 	},
2173 	{	"PowerMac6,4",			"eMac",
2174 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2175 		PMAC_MB_MAY_SLEEP,
2176 	},
2177 	{	"PowerMac10,1",			"Mac mini",
2178 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2179 		PMAC_MB_MAY_SLEEP,
2180 	},
2181 	{       "PowerMac10,2",                 "Mac mini (Late 2005)",
2182 		PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2183 		PMAC_MB_MAY_SLEEP,
2184 	},
2185  	{	"iMac,1",			"iMac (first generation)",
2186 		PMAC_TYPE_ORIG_IMAC,		paddington_features,
2187 		0
2188 	},
2189 
2190 	/*
2191 	 * Xserve's
2192 	 */
2193 
2194 	{	"RackMac1,1",			"XServe",
2195 		PMAC_TYPE_RACKMAC,		rackmac_features,
2196 		0,
2197 	},
2198 	{	"RackMac1,2",			"XServe rev. 2",
2199 		PMAC_TYPE_RACKMAC,		rackmac_features,
2200 		0,
2201 	},
2202 
2203 	/*
2204 	 * Laptops
2205 	 */
2206 
2207 	{	"AAPL,3400/2400",		"PowerBook 3400",
2208 		PMAC_TYPE_HOOPER,		ohare_features,
2209 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2210 	},
2211 	{	"AAPL,3500",			"PowerBook 3500",
2212 		PMAC_TYPE_KANGA,		ohare_features,
2213 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2214 	},
2215 	{	"AAPL,PowerBook1998",		"PowerBook Wallstreet",
2216 		PMAC_TYPE_WALLSTREET,		heathrow_laptop_features,
2217 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2218 	},
2219 	{	"PowerBook1,1",			"PowerBook 101 (Lombard)",
2220 		PMAC_TYPE_101_PBOOK,		paddington_features,
2221 		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2222 	},
2223 	{	"PowerBook2,1",			"iBook (first generation)",
2224 		PMAC_TYPE_ORIG_IBOOK,		core99_features,
2225 		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2226 	},
2227 	{	"PowerBook2,2",			"iBook FireWire",
2228 		PMAC_TYPE_FW_IBOOK,		core99_features,
2229 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2230 		PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2231 	},
2232 	{	"PowerBook3,1",			"PowerBook Pismo",
2233 		PMAC_TYPE_PISMO,		core99_features,
2234 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2235 		PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2236 	},
2237 	{	"PowerBook3,2",			"PowerBook Titanium",
2238 		PMAC_TYPE_TITANIUM,		core99_features,
2239 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2240 	},
2241 	{	"PowerBook3,3",			"PowerBook Titanium II",
2242 		PMAC_TYPE_TITANIUM2,		core99_features,
2243 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2244 	},
2245 	{	"PowerBook3,4",			"PowerBook Titanium III",
2246 		PMAC_TYPE_TITANIUM3,		core99_features,
2247 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2248 	},
2249 	{	"PowerBook3,5",			"PowerBook Titanium IV",
2250 		PMAC_TYPE_TITANIUM4,		core99_features,
2251 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2252 	},
2253 	{	"PowerBook4,1",			"iBook 2",
2254 		PMAC_TYPE_IBOOK2,		pangea_features,
2255 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2256 	},
2257 	{	"PowerBook4,2",			"iBook 2",
2258 		PMAC_TYPE_IBOOK2,		pangea_features,
2259 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2260 	},
2261 	{	"PowerBook4,3",			"iBook 2 rev. 2",
2262 		PMAC_TYPE_IBOOK2,		pangea_features,
2263 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2264 	},
2265 	{	"PowerBook5,1",			"PowerBook G4 17\"",
2266 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2267 		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2268 	},
2269 	{	"PowerBook5,2",			"PowerBook G4 15\"",
2270 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2271 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2272 	},
2273 	{	"PowerBook5,3",			"PowerBook G4 17\"",
2274 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2275 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2276 	},
2277 	{	"PowerBook5,4",			"PowerBook G4 15\"",
2278 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2279 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2280 	},
2281 	{	"PowerBook5,5",			"PowerBook G4 17\"",
2282 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2283 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2284 	},
2285 	{	"PowerBook5,6",			"PowerBook G4 15\"",
2286 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2287 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2288 	},
2289 	{	"PowerBook5,7",			"PowerBook G4 17\"",
2290 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2291 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2292 	},
2293 	{	"PowerBook5,8",			"PowerBook G4 15\"",
2294 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2295 		PMAC_MB_MAY_SLEEP  | PMAC_MB_MOBILE,
2296 	},
2297 	{	"PowerBook5,9",			"PowerBook G4 17\"",
2298 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2299 		PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE,
2300 	},
2301 	{	"PowerBook6,1",			"PowerBook G4 12\"",
2302 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2303 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2304 	},
2305 	{	"PowerBook6,2",			"PowerBook G4",
2306 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2307 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2308 	},
2309 	{	"PowerBook6,3",			"iBook G4",
2310 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2311 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2312 	},
2313 	{	"PowerBook6,4",			"PowerBook G4 12\"",
2314 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2315 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2316 	},
2317 	{	"PowerBook6,5",			"iBook G4",
2318 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2319 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2320 	},
2321 	{	"PowerBook6,7",			"iBook G4",
2322 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2323 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2324 	},
2325 	{	"PowerBook6,8",			"PowerBook G4 12\"",
2326 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
2327 		PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2328 	},
2329 #else /* CONFIG_PPC64 */
2330 	{	"PowerMac7,2",			"PowerMac G5",
2331 		PMAC_TYPE_POWERMAC_G5,		g5_features,
2332 		0,
2333 	},
2334 #ifdef CONFIG_PPC64
2335 	{	"PowerMac7,3",			"PowerMac G5",
2336 		PMAC_TYPE_POWERMAC_G5,		g5_features,
2337 		0,
2338 	},
2339 	{	"PowerMac8,1",			"iMac G5",
2340 		PMAC_TYPE_IMAC_G5,		g5_features,
2341 		0,
2342 	},
2343 	{	"PowerMac9,1",			"PowerMac G5",
2344 		PMAC_TYPE_POWERMAC_G5_U3L,	g5_features,
2345 		0,
2346 	},
2347 	{	"PowerMac11,2",			"PowerMac G5 Dual Core",
2348 		PMAC_TYPE_POWERMAC_G5_U3L,	g5_features,
2349 		0,
2350 	},
2351 	{	"PowerMac12,1",			"iMac G5 (iSight)",
2352 		PMAC_TYPE_POWERMAC_G5_U3L,	g5_features,
2353 		0,
2354 	},
2355 	{       "RackMac3,1",                   "XServe G5",
2356 		PMAC_TYPE_XSERVE_G5,		g5_features,
2357 		0,
2358 	},
2359 #endif /* CONFIG_PPC64 */
2360 #endif /* CONFIG_PPC64 */
2361 };
2362 
2363 /*
2364  * The toplevel feature_call callback
2365  */
pmac_do_feature_call(unsigned int selector,...)2366 long pmac_do_feature_call(unsigned int selector, ...)
2367 {
2368 	struct device_node *node;
2369 	long param, value;
2370 	int i;
2371 	feature_call func = NULL;
2372 	va_list args;
2373 
2374 	if (pmac_mb.features)
2375 		for (i=0; pmac_mb.features[i].function; i++)
2376 			if (pmac_mb.features[i].selector == selector) {
2377 				func = pmac_mb.features[i].function;
2378 				break;
2379 			}
2380 	if (!func)
2381 		for (i=0; any_features[i].function; i++)
2382 			if (any_features[i].selector == selector) {
2383 				func = any_features[i].function;
2384 				break;
2385 			}
2386 	if (!func)
2387 		return -ENODEV;
2388 
2389 	va_start(args, selector);
2390 	node = (struct device_node*)va_arg(args, void*);
2391 	param = va_arg(args, long);
2392 	value = va_arg(args, long);
2393 	va_end(args);
2394 
2395 	return func(node, param, value);
2396 }
2397 
probe_motherboard(void)2398 static int __init probe_motherboard(void)
2399 {
2400 	int i;
2401 	struct macio_chip *macio = &macio_chips[0];
2402 	const char *model = NULL;
2403 	struct device_node *dt;
2404 	int ret = 0;
2405 
2406 	/* Lookup known motherboard type in device-tree. First try an
2407 	 * exact match on the "model" property, then try a "compatible"
2408 	 * match is none is found.
2409 	 */
2410 	dt = of_find_node_by_name(NULL, "device-tree");
2411 	if (dt != NULL)
2412 		model = of_get_property(dt, "model", NULL);
2413 	for(i=0; model && i<ARRAY_SIZE(pmac_mb_defs); i++) {
2414 	    if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
2415 		pmac_mb = pmac_mb_defs[i];
2416 		goto found;
2417 	    }
2418 	}
2419 	for(i=0; i<ARRAY_SIZE(pmac_mb_defs); i++) {
2420 	    if (of_machine_is_compatible(pmac_mb_defs[i].model_string)) {
2421 		pmac_mb = pmac_mb_defs[i];
2422 		goto found;
2423 	    }
2424 	}
2425 
2426 	/* Fallback to selection depending on mac-io chip type */
2427 	switch(macio->type) {
2428 #ifndef CONFIG_PPC64
2429 	    case macio_grand_central:
2430 		pmac_mb.model_id = PMAC_TYPE_PSURGE;
2431 		pmac_mb.model_name = "Unknown PowerSurge";
2432 		break;
2433 	    case macio_ohare:
2434 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
2435 		pmac_mb.model_name = "Unknown OHare-based";
2436 		break;
2437 	    case macio_heathrow:
2438 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
2439 		pmac_mb.model_name = "Unknown Heathrow-based";
2440 		pmac_mb.features = heathrow_desktop_features;
2441 		break;
2442 	    case macio_paddington:
2443 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
2444 		pmac_mb.model_name = "Unknown Paddington-based";
2445 		pmac_mb.features = paddington_features;
2446 		break;
2447 	    case macio_keylargo:
2448 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
2449 		pmac_mb.model_name = "Unknown Keylargo-based";
2450 		pmac_mb.features = core99_features;
2451 		break;
2452 	    case macio_pangea:
2453 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
2454 		pmac_mb.model_name = "Unknown Pangea-based";
2455 		pmac_mb.features = pangea_features;
2456 		break;
2457 	    case macio_intrepid:
2458 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
2459 		pmac_mb.model_name = "Unknown Intrepid-based";
2460 		pmac_mb.features = intrepid_features;
2461 		break;
2462 #else /* CONFIG_PPC64 */
2463 	case macio_keylargo2:
2464 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
2465 		pmac_mb.model_name = "Unknown K2-based";
2466 		pmac_mb.features = g5_features;
2467 		break;
2468 	case macio_shasta:
2469 		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
2470 		pmac_mb.model_name = "Unknown Shasta-based";
2471 		pmac_mb.features = g5_features;
2472 		break;
2473 #endif /* CONFIG_PPC64 */
2474 	default:
2475 		ret = -ENODEV;
2476 		goto done;
2477 	}
2478 found:
2479 #ifndef CONFIG_PPC64
2480 	/* Fixup Hooper vs. Comet */
2481 	if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
2482 		u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
2483 		if (!mach_id_ptr) {
2484 			ret = -ENODEV;
2485 			goto done;
2486 		}
2487 		/* Here, I used to disable the media-bay on comet. It
2488 		 * appears this is wrong, the floppy connector is actually
2489 		 * a kind of media-bay and works with the current driver.
2490 		 */
2491 		if (__raw_readl(mach_id_ptr) & 0x20000000UL)
2492 			pmac_mb.model_id = PMAC_TYPE_COMET;
2493 		iounmap(mach_id_ptr);
2494 	}
2495 
2496 	/* Set default value of powersave_nap on machines that support it.
2497 	 * It appears that uninorth rev 3 has a problem with it, we don't
2498 	 * enable it on those. In theory, the flush-on-lock property is
2499 	 * supposed to be set when not supported, but I'm not very confident
2500 	 * that all Apple OF revs did it properly, I do it the paranoid way.
2501 	 */
2502 	if (uninorth_base && uninorth_rev > 3) {
2503 		struct device_node *np;
2504 
2505 		for_each_of_cpu_node(np) {
2506 			int cpu_count = 1;
2507 
2508 			/* Nap mode not supported on SMP */
2509 			if (of_get_property(np, "flush-on-lock", NULL) ||
2510 			    (cpu_count > 1)) {
2511 				powersave_nap = 0;
2512 				of_node_put(np);
2513 				break;
2514 			}
2515 
2516 			cpu_count++;
2517 			powersave_nap = 1;
2518 		}
2519 	}
2520 	if (powersave_nap)
2521 		printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
2522 
2523 	/* On CPUs that support it (750FX), lowspeed by default during
2524 	 * NAP mode
2525 	 */
2526 	powersave_lowspeed = 1;
2527 
2528 #else /* CONFIG_PPC64 */
2529 	powersave_nap = 1;
2530 #endif  /* CONFIG_PPC64 */
2531 
2532 	/* Check for "mobile" machine */
2533 	if (model && (strncmp(model, "PowerBook", 9) == 0
2534 		   || strncmp(model, "iBook", 5) == 0))
2535 		pmac_mb.board_flags |= PMAC_MB_MOBILE;
2536 
2537 
2538 	printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
2539 done:
2540 	of_node_put(dt);
2541 	return ret;
2542 }
2543 
2544 /* Initialize the Core99 UniNorth host bridge and memory controller
2545  */
probe_uninorth(void)2546 static void __init probe_uninorth(void)
2547 {
2548 	const u32 *addrp;
2549 	phys_addr_t address;
2550 	unsigned long actrl;
2551 
2552 	/* Locate core99 Uni-N */
2553 	uninorth_node = of_find_node_by_name(NULL, "uni-n");
2554 	uninorth_maj = 1;
2555 
2556 	/* Locate G5 u3 */
2557 	if (uninorth_node == NULL) {
2558 		uninorth_node = of_find_node_by_name(NULL, "u3");
2559 		uninorth_maj = 3;
2560 	}
2561 	/* Locate G5 u4 */
2562 	if (uninorth_node == NULL) {
2563 		uninorth_node = of_find_node_by_name(NULL, "u4");
2564 		uninorth_maj = 4;
2565 	}
2566 	if (uninorth_node == NULL) {
2567 		uninorth_maj = 0;
2568 		return;
2569 	}
2570 
2571 	addrp = of_get_property(uninorth_node, "reg", NULL);
2572 	if (addrp == NULL)
2573 		return;
2574 	address = of_translate_address(uninorth_node, addrp);
2575 	if (address == 0)
2576 		return;
2577 	uninorth_base = ioremap(address, 0x40000);
2578 	if (uninorth_base == NULL)
2579 		return;
2580 	uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
2581 	if (uninorth_maj == 3 || uninorth_maj == 4) {
2582 		u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
2583 		if (u3_ht_base == NULL) {
2584 			iounmap(uninorth_base);
2585 			return;
2586 		}
2587 	}
2588 
2589 	printk(KERN_INFO "Found %s memory controller & host bridge"
2590 	       " @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
2591 	       uninorth_maj == 4 ? "U4" : "UniNorth",
2592 	       (unsigned int)address, uninorth_rev);
2593 	printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
2594 
2595 	/* Set the arbitrer QAck delay according to what Apple does
2596 	 */
2597 	if (uninorth_rev < 0x11) {
2598 		actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
2599 		actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
2600 			UNI_N_ARB_CTRL_QACK_DELAY) <<
2601 			UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
2602 		UN_OUT(UNI_N_ARB_CTRL, actrl);
2603 	}
2604 
2605 	/* Some more magic as done by them in recent MacOS X on UniNorth
2606 	 * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
2607 	 * memory timeout
2608 	 */
2609 	if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
2610 	    uninorth_rev == 0xc0)
2611 		UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
2612 }
2613 
probe_one_macio(const char * name,const char * compat,int type)2614 static void __init probe_one_macio(const char *name, const char *compat, int type)
2615 {
2616 	struct device_node*	node;
2617 	int			i;
2618 	volatile u32 __iomem	*base;
2619 	const u32		*addrp, *revp;
2620 	phys_addr_t		addr;
2621 	u64			size;
2622 
2623 	for_each_node_by_name(node, name) {
2624 		if (!compat)
2625 			break;
2626 		if (of_device_is_compatible(node, compat))
2627 			break;
2628 	}
2629 	if (!node)
2630 		return;
2631 	for(i=0; i<MAX_MACIO_CHIPS; i++) {
2632 		if (!macio_chips[i].of_node)
2633 			break;
2634 		if (macio_chips[i].of_node == node)
2635 			goto out_put;
2636 	}
2637 
2638 	if (i >= MAX_MACIO_CHIPS) {
2639 		printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
2640 		printk(KERN_ERR "pmac_feature: %pOF skipped\n", node);
2641 		goto out_put;
2642 	}
2643 	addrp = of_get_pci_address(node, 0, &size, NULL);
2644 	if (addrp == NULL) {
2645 		printk(KERN_ERR "pmac_feature: %pOF: can't find base !\n",
2646 		       node);
2647 		goto out_put;
2648 	}
2649 	addr = of_translate_address(node, addrp);
2650 	if (addr == 0) {
2651 		printk(KERN_ERR "pmac_feature: %pOF, can't translate base !\n",
2652 		       node);
2653 		goto out_put;
2654 	}
2655 	base = ioremap(addr, (unsigned long)size);
2656 	if (!base) {
2657 		printk(KERN_ERR "pmac_feature: %pOF, can't map mac-io chip !\n",
2658 		       node);
2659 		goto out_put;
2660 	}
2661 	if (type == macio_keylargo || type == macio_keylargo2) {
2662 		const u32 *did = of_get_property(node, "device-id", NULL);
2663 		if (*did == 0x00000025)
2664 			type = macio_pangea;
2665 		if (*did == 0x0000003e)
2666 			type = macio_intrepid;
2667 		if (*did == 0x0000004f)
2668 			type = macio_shasta;
2669 	}
2670 	macio_chips[i].of_node	= node;
2671 	macio_chips[i].type	= type;
2672 	macio_chips[i].base	= base;
2673 	macio_chips[i].flags	= MACIO_FLAG_SCCA_ON | MACIO_FLAG_SCCB_ON;
2674 	macio_chips[i].name	= macio_names[type];
2675 	revp = of_get_property(node, "revision-id", NULL);
2676 	if (revp)
2677 		macio_chips[i].rev = *revp;
2678 	printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
2679 		macio_names[type], macio_chips[i].rev, macio_chips[i].base);
2680 
2681 	return;
2682 
2683 out_put:
2684 	of_node_put(node);
2685 }
2686 
2687 static int __init
probe_macios(void)2688 probe_macios(void)
2689 {
2690 	/* Warning, ordering is important */
2691 	probe_one_macio("gc", NULL, macio_grand_central);
2692 	probe_one_macio("ohare", NULL, macio_ohare);
2693 	probe_one_macio("pci106b,7", NULL, macio_ohareII);
2694 	probe_one_macio("mac-io", "keylargo", macio_keylargo);
2695 	probe_one_macio("mac-io", "paddington", macio_paddington);
2696 	probe_one_macio("mac-io", "gatwick", macio_gatwick);
2697 	probe_one_macio("mac-io", "heathrow", macio_heathrow);
2698 	probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
2699 
2700 	/* Make sure the "main" macio chip appear first */
2701 	if (macio_chips[0].type == macio_gatwick
2702 	    && macio_chips[1].type == macio_heathrow) {
2703 		struct macio_chip temp = macio_chips[0];
2704 		macio_chips[0] = macio_chips[1];
2705 		macio_chips[1] = temp;
2706 	}
2707 	if (macio_chips[0].type == macio_ohareII
2708 	    && macio_chips[1].type == macio_ohare) {
2709 		struct macio_chip temp = macio_chips[0];
2710 		macio_chips[0] = macio_chips[1];
2711 		macio_chips[1] = temp;
2712 	}
2713 	macio_chips[0].lbus.index = 0;
2714 	macio_chips[1].lbus.index = 1;
2715 
2716 	return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
2717 }
2718 
2719 static void __init
initial_serial_shutdown(struct device_node * np)2720 initial_serial_shutdown(struct device_node *np)
2721 {
2722 	int len;
2723 	const struct slot_names_prop {
2724 		int	count;
2725 		char	name[1];
2726 	} *slots;
2727 	const char *conn;
2728 	int port_type = PMAC_SCC_ASYNC;
2729 	int modem = 0;
2730 
2731 	slots = of_get_property(np, "slot-names", &len);
2732 	conn = of_get_property(np, "AAPL,connector", &len);
2733 	if (conn && (strcmp(conn, "infrared") == 0))
2734 		port_type = PMAC_SCC_IRDA;
2735 	else if (of_device_is_compatible(np, "cobalt"))
2736 		modem = 1;
2737 	else if (slots && slots->count > 0) {
2738 		if (strcmp(slots->name, "IrDA") == 0)
2739 			port_type = PMAC_SCC_IRDA;
2740 		else if (strcmp(slots->name, "Modem") == 0)
2741 			modem = 1;
2742 	}
2743 	if (modem)
2744 		pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
2745 	pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
2746 }
2747 
2748 static void __init
set_initial_features(void)2749 set_initial_features(void)
2750 {
2751 	struct device_node *np;
2752 
2753 	/* That hack appears to be necessary for some StarMax motherboards
2754 	 * but I'm not too sure it was audited for side-effects on other
2755 	 * ohare based machines...
2756 	 * Since I still have difficulties figuring the right way to
2757 	 * differentiate them all and since that hack was there for a long
2758 	 * time, I'll keep it around
2759 	 */
2760 	if (macio_chips[0].type == macio_ohare) {
2761 		struct macio_chip *macio = &macio_chips[0];
2762 		np = of_find_node_by_name(NULL, "via-pmu");
2763 		if (np)
2764 			MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2765 		else
2766 			MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
2767 		of_node_put(np);
2768 	} else if (macio_chips[1].type == macio_ohare) {
2769 		struct macio_chip *macio = &macio_chips[1];
2770 		MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2771 	}
2772 
2773 #ifdef CONFIG_PPC64
2774 	if (macio_chips[0].type == macio_keylargo2 ||
2775 	    macio_chips[0].type == macio_shasta) {
2776 #ifndef CONFIG_SMP
2777 		/* On SMP machines running UP, we have the second CPU eating
2778 		 * bus cycles. We need to take it off the bus. This is done
2779 		 * from pmac_smp for SMP kernels running on one CPU
2780 		 */
2781 		np = of_find_node_by_type(NULL, "cpu");
2782 		if (np != NULL)
2783 			np = of_find_node_by_type(np, "cpu");
2784 		if (np != NULL) {
2785 			g5_phy_disable_cpu1();
2786 			of_node_put(np);
2787 		}
2788 #endif /* CONFIG_SMP */
2789 		/* Enable GMAC for now for PCI probing. It will be disabled
2790 		 * later on after PCI probe
2791 		 */
2792 		for_each_node_by_name(np, "ethernet")
2793 			if (of_device_is_compatible(np, "K2-GMAC"))
2794 				g5_gmac_enable(np, 0, 1);
2795 
2796 		/* Enable FW before PCI probe. Will be disabled later on
2797 		 * Note: We should have a batter way to check that we are
2798 		 * dealing with uninorth internal cell and not a PCI cell
2799 		 * on the external PCI. The code below works though.
2800 		 */
2801 		for_each_node_by_name(np, "firewire") {
2802 			if (of_device_is_compatible(np, "pci106b,5811")) {
2803 				macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2804 				g5_fw_enable(np, 0, 1);
2805 			}
2806 		}
2807 	}
2808 #else /* CONFIG_PPC64 */
2809 
2810 	if (macio_chips[0].type == macio_keylargo ||
2811 	    macio_chips[0].type == macio_pangea ||
2812 	    macio_chips[0].type == macio_intrepid) {
2813 		/* Enable GMAC for now for PCI probing. It will be disabled
2814 		 * later on after PCI probe
2815 		 */
2816 		for_each_node_by_name(np, "ethernet") {
2817 			if (np->parent
2818 			    && of_device_is_compatible(np->parent, "uni-north")
2819 			    && of_device_is_compatible(np, "gmac"))
2820 				core99_gmac_enable(np, 0, 1);
2821 		}
2822 
2823 		/* Enable FW before PCI probe. Will be disabled later on
2824 		 * Note: We should have a batter way to check that we are
2825 		 * dealing with uninorth internal cell and not a PCI cell
2826 		 * on the external PCI. The code below works though.
2827 		 */
2828 		for_each_node_by_name(np, "firewire") {
2829 			if (np->parent
2830 			    && of_device_is_compatible(np->parent, "uni-north")
2831 			    && (of_device_is_compatible(np, "pci106b,18") ||
2832 			        of_device_is_compatible(np, "pci106b,30") ||
2833 			        of_device_is_compatible(np, "pci11c1,5811"))) {
2834 				macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2835 				core99_firewire_enable(np, 0, 1);
2836 			}
2837 		}
2838 
2839 		/* Enable ATA-100 before PCI probe. */
2840 		for_each_node_by_name(np, "ata-6") {
2841 			if (np->parent
2842 			    && of_device_is_compatible(np->parent, "uni-north")
2843 			    && of_device_is_compatible(np, "kauai-ata")) {
2844 				core99_ata100_enable(np, 1);
2845 			}
2846 		}
2847 
2848 		/* Switch airport off */
2849 		for_each_node_by_name(np, "radio") {
2850 			if (np->parent == macio_chips[0].of_node) {
2851 				macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
2852 				core99_airport_enable(np, 0, 0);
2853 			}
2854 		}
2855 	}
2856 
2857 	/* On all machines that support sound PM, switch sound off */
2858 	if (macio_chips[0].of_node)
2859 		pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
2860 			macio_chips[0].of_node, 0, 0);
2861 
2862 	/* While on some desktop G3s, we turn it back on */
2863 	if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
2864 		&& (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
2865 		    pmac_mb.model_id == PMAC_TYPE_SILK)) {
2866 		struct macio_chip *macio = &macio_chips[0];
2867 		MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
2868 		MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2869 	}
2870 
2871 #endif /* CONFIG_PPC64 */
2872 
2873 	/* On all machines, switch modem & serial ports off */
2874 	for_each_node_by_name(np, "ch-a")
2875 		initial_serial_shutdown(np);
2876 	for_each_node_by_name(np, "ch-b")
2877 		initial_serial_shutdown(np);
2878 }
2879 
2880 void __init
pmac_feature_init(void)2881 pmac_feature_init(void)
2882 {
2883 	/* Detect the UniNorth memory controller */
2884 	probe_uninorth();
2885 
2886 	/* Probe mac-io controllers */
2887 	if (probe_macios()) {
2888 		printk(KERN_WARNING "No mac-io chip found\n");
2889 		return;
2890 	}
2891 
2892 	/* Probe machine type */
2893 	if (probe_motherboard())
2894 		printk(KERN_WARNING "Unknown PowerMac !\n");
2895 
2896 	/* Set some initial features (turn off some chips that will
2897 	 * be later turned on)
2898 	 */
2899 	set_initial_features();
2900 }
2901 
2902 #if 0
2903 static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2904 {
2905 	int	freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
2906 	int	bits[8] = { 8,16,0,32,2,4,0,0 };
2907 	int	freq = (frq >> 8) & 0xf;
2908 
2909 	if (freqs[freq] == 0)
2910 		printk("%s: Unknown HT link frequency %x\n", name, freq);
2911 	else
2912 		printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
2913 		       name, freqs[freq],
2914 		       bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
2915 }
2916 
2917 void __init pmac_check_ht_link(void)
2918 {
2919 	u32	ufreq, freq, ucfg, cfg;
2920 	struct device_node *pcix_node;
2921 	u8	px_bus, px_devfn;
2922 	struct pci_controller *px_hose;
2923 
2924 	(void)in_be32(u3_ht_base + U3_HT_LINK_COMMAND);
2925 	ucfg = cfg = in_be32(u3_ht_base + U3_HT_LINK_CONFIG);
2926 	ufreq = freq = in_be32(u3_ht_base + U3_HT_LINK_FREQ);
2927 	dump_HT_speeds("U3 HyperTransport", cfg, freq);
2928 
2929 	pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
2930 	if (pcix_node == NULL) {
2931 		printk("No PCI-X bridge found\n");
2932 		return;
2933 	}
2934 	if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
2935 		printk("PCI-X bridge found but not matched to pci\n");
2936 		return;
2937 	}
2938 	px_hose = pci_find_hose_for_OF_device(pcix_node);
2939 	if (px_hose == NULL) {
2940 		printk("PCI-X bridge found but not matched to host\n");
2941 		return;
2942 	}
2943 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
2944 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
2945 	dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
2946 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2947 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2948 	dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2949 }
2950 #endif /* 0 */
2951 
2952 /*
2953  * Early video resume hook
2954  */
2955 
2956 static void (*pmac_early_vresume_proc)(void *data);
2957 static void *pmac_early_vresume_data;
2958 
pmac_set_early_video_resume(void (* proc)(void * data),void * data)2959 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
2960 {
2961 	if (!machine_is(powermac))
2962 		return;
2963 	preempt_disable();
2964 	pmac_early_vresume_proc = proc;
2965 	pmac_early_vresume_data = data;
2966 	preempt_enable();
2967 }
2968 EXPORT_SYMBOL(pmac_set_early_video_resume);
2969 
pmac_call_early_video_resume(void)2970 void pmac_call_early_video_resume(void)
2971 {
2972 	if (pmac_early_vresume_proc)
2973 		pmac_early_vresume_proc(pmac_early_vresume_data);
2974 }
2975 
2976 /*
2977  * AGP related suspend/resume code
2978  */
2979 
2980 static struct pci_dev *pmac_agp_bridge;
2981 static int (*pmac_agp_suspend)(struct pci_dev *bridge);
2982 static int (*pmac_agp_resume)(struct pci_dev *bridge);
2983 
pmac_register_agp_pm(struct pci_dev * bridge,int (* suspend)(struct pci_dev * bridge),int (* resume)(struct pci_dev * bridge))2984 void pmac_register_agp_pm(struct pci_dev *bridge,
2985 				 int (*suspend)(struct pci_dev *bridge),
2986 				 int (*resume)(struct pci_dev *bridge))
2987 {
2988 	if (suspend || resume) {
2989 		pmac_agp_bridge = bridge;
2990 		pmac_agp_suspend = suspend;
2991 		pmac_agp_resume = resume;
2992 		return;
2993 	}
2994 	if (bridge != pmac_agp_bridge)
2995 		return;
2996 	pmac_agp_suspend = pmac_agp_resume = NULL;
2997 	return;
2998 }
2999 EXPORT_SYMBOL(pmac_register_agp_pm);
3000 
pmac_suspend_agp_for_card(struct pci_dev * dev)3001 void pmac_suspend_agp_for_card(struct pci_dev *dev)
3002 {
3003 	if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
3004 		return;
3005 	if (pmac_agp_bridge->bus != dev->bus)
3006 		return;
3007 	pmac_agp_suspend(pmac_agp_bridge);
3008 }
3009 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
3010 
pmac_resume_agp_for_card(struct pci_dev * dev)3011 void pmac_resume_agp_for_card(struct pci_dev *dev)
3012 {
3013 	if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
3014 		return;
3015 	if (pmac_agp_bridge->bus != dev->bus)
3016 		return;
3017 	pmac_agp_resume(pmac_agp_bridge);
3018 }
3019 EXPORT_SYMBOL(pmac_resume_agp_for_card);
3020 
pmac_get_uninorth_variant(void)3021 int pmac_get_uninorth_variant(void)
3022 {
3023 	return uninorth_maj;
3024 }
3025