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