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Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / mips / au1000 / common / irq.c
blobd1eb5a4a9a19cc50abbbfab47694579f8077f0bd
1 /*
2 * BRIEF MODULE DESCRIPTION
3 * Au1000 interrupt routines.
4 *
5 * Copyright 2001 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc.
7 * ppopov@mvista.com or source@mvista.com
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
20 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * You should have received a copy of the GNU General Public License along
26 * with this program; if not, write to the Free Software Foundation, Inc.,
27 * 675 Mass Ave, Cambridge, MA 02139, USA.
28 */
29 #include <linux/config.h>
30 #include <linux/errno.h>
31 #include <linux/init.h>
32 #include <linux/irq.h>
33 #include <linux/kernel_stat.h>
34 #include <linux/module.h>
35 #include <linux/signal.h>
36 #include <linux/sched.h>
37 #include <linux/types.h>
38 #include <linux/interrupt.h>
39 #include <linux/ioport.h>
40 #include <linux/timex.h>
41 #include <linux/slab.h>
42 #include <linux/random.h>
43 #include <linux/delay.h>
44 #include <linux/bitops.h>
45
46 #include <asm/bootinfo.h>
47 #include <asm/io.h>
48 #include <asm/mipsregs.h>
49 #include <asm/system.h>
50 #include <asm/mach-au1x00/au1000.h>
51 #ifdef CONFIG_MIPS_PB1000
52 #include <asm/mach-pb1x00/pb1000.h>
53 #endif
54
55 #undef DEBUG_IRQ
56 #ifdef DEBUG_IRQ
57 /* note: prints function name for you */
58 #define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ## args)
59 #else
60 #define DPRINTK(fmt, args...)
61 #endif
62
63 #define EXT_INTC0_REQ0 2 /* IP 2 */
64 #define EXT_INTC0_REQ1 3 /* IP 3 */
65 #define EXT_INTC1_REQ0 4 /* IP 4 */
66 #define EXT_INTC1_REQ1 5 /* IP 5 */
67 #define MIPS_TIMER_IP 7 /* IP 7 */
68
69 extern asmlinkage void au1000_IRQ(void);
70 extern void set_debug_traps(void);
71 extern irq_cpustat_t irq_stat [NR_CPUS];
72
73 static void setup_local_irq(unsigned int irq, int type, int int_req);
74 static unsigned int startup_irq(unsigned int irq);
75 static void end_irq(unsigned int irq_nr);
76 static inline void mask_and_ack_level_irq(unsigned int irq_nr);
77 static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr);
78 static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr);
79 static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr);
80 inline void local_enable_irq(unsigned int irq_nr);
81 inline void local_disable_irq(unsigned int irq_nr);
82
83 void (*board_init_irq)(void);
84
85 #ifdef CONFIG_PM
86 extern void counter0_irq(int irq, void *dev_id, struct pt_regs *regs);
87 #endif
88
89 static DEFINE_SPINLOCK(irq_lock);
90
91
92 static unsigned int startup_irq(unsigned int irq_nr)
93 {
94 local_enable_irq(irq_nr);
95 return 0;
96 }
97
98
99 static void shutdown_irq(unsigned int irq_nr)
100 {
101 local_disable_irq(irq_nr);
102 return;
103 }
104
105
106 inline void local_enable_irq(unsigned int irq_nr)
107 {
108 if (irq_nr > AU1000_LAST_INTC0_INT) {
109 au_writel(1<<(irq_nr-32), IC1_MASKSET);
110 au_writel(1<<(irq_nr-32), IC1_WAKESET);
111 }
112 else {
113 au_writel(1<<irq_nr, IC0_MASKSET);
114 au_writel(1<<irq_nr, IC0_WAKESET);
115 }
116 au_sync();
117 }
118
119
120 inline void local_disable_irq(unsigned int irq_nr)
121 {
122 if (irq_nr > AU1000_LAST_INTC0_INT) {
123 au_writel(1<<(irq_nr-32), IC1_MASKCLR);
124 au_writel(1<<(irq_nr-32), IC1_WAKECLR);
125 }
126 else {
127 au_writel(1<<irq_nr, IC0_MASKCLR);
128 au_writel(1<<irq_nr, IC0_WAKECLR);
129 }
130 au_sync();
131 }
132
133
134 static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr)
135 {
136 if (irq_nr > AU1000_LAST_INTC0_INT) {
137 au_writel(1<<(irq_nr-32), IC1_RISINGCLR);
138 au_writel(1<<(irq_nr-32), IC1_MASKCLR);
139 }
140 else {
141 au_writel(1<<irq_nr, IC0_RISINGCLR);
142 au_writel(1<<irq_nr, IC0_MASKCLR);
143 }
144 au_sync();
145 }
146
147
148 static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr)
149 {
150 if (irq_nr > AU1000_LAST_INTC0_INT) {
151 au_writel(1<<(irq_nr-32), IC1_FALLINGCLR);
152 au_writel(1<<(irq_nr-32), IC1_MASKCLR);
153 }
154 else {
155 au_writel(1<<irq_nr, IC0_FALLINGCLR);
156 au_writel(1<<irq_nr, IC0_MASKCLR);
157 }
158 au_sync();
159 }
160
161
162 static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr)
163 {
164 /* This may assume that we don't get interrupts from
165 * both edges at once, or if we do, that we don't care.
166 */
167 if (irq_nr > AU1000_LAST_INTC0_INT) {
168 au_writel(1<<(irq_nr-32), IC1_FALLINGCLR);
169 au_writel(1<<(irq_nr-32), IC1_RISINGCLR);
170 au_writel(1<<(irq_nr-32), IC1_MASKCLR);
171 }
172 else {
173 au_writel(1<<irq_nr, IC0_FALLINGCLR);
174 au_writel(1<<irq_nr, IC0_RISINGCLR);
175 au_writel(1<<irq_nr, IC0_MASKCLR);
176 }
177 au_sync();
178 }
179
180
181 static inline void mask_and_ack_level_irq(unsigned int irq_nr)
182 {
183
184 local_disable_irq(irq_nr);
185 au_sync();
186 #if defined(CONFIG_MIPS_PB1000)
187 if (irq_nr == AU1000_GPIO_15) {
188 au_writel(0x8000, PB1000_MDR); /* ack int */
189 au_sync();
190 }
191 #endif
192 return;
193 }
194
195
196 static void end_irq(unsigned int irq_nr)
197 {
198 if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))) {
199 local_enable_irq(irq_nr);
200 }
201 #if defined(CONFIG_MIPS_PB1000)
202 if (irq_nr == AU1000_GPIO_15) {
203 au_writel(0x4000, PB1000_MDR); /* enable int */
204 au_sync();
205 }
206 #endif
207 }
208
209 unsigned long save_local_and_disable(int controller)
210 {
211 int i;
212 unsigned long flags, mask;
213
214 spin_lock_irqsave(&irq_lock, flags);
215 if (controller) {
216 mask = au_readl(IC1_MASKSET);
217 for (i=32; i<64; i++) {
218 local_disable_irq(i);
219 }
220 }
221 else {
222 mask = au_readl(IC0_MASKSET);
223 for (i=0; i<32; i++) {
224 local_disable_irq(i);
225 }
226 }
227 spin_unlock_irqrestore(&irq_lock, flags);
228
229 return mask;
230 }
231
232 void restore_local_and_enable(int controller, unsigned long mask)
233 {
234 int i;
235 unsigned long flags, new_mask;
236
237 spin_lock_irqsave(&irq_lock, flags);
238 for (i=0; i<32; i++) {
239 if (mask & (1<<i)) {
240 if (controller)
241 local_enable_irq(i+32);
242 else
243 local_enable_irq(i);
244 }
245 }
246 if (controller)
247 new_mask = au_readl(IC1_MASKSET);
248 else
249 new_mask = au_readl(IC0_MASKSET);
250
251 spin_unlock_irqrestore(&irq_lock, flags);
252 }
253
254
255 static struct hw_interrupt_type rise_edge_irq_type = {
256 "Au1000 Rise Edge",
257 startup_irq,
258 shutdown_irq,
259 local_enable_irq,
260 local_disable_irq,
261 mask_and_ack_rise_edge_irq,
262 end_irq,
263 NULL
264 };
265
266 static struct hw_interrupt_type fall_edge_irq_type = {
267 "Au1000 Fall Edge",
268 startup_irq,
269 shutdown_irq,
270 local_enable_irq,
271 local_disable_irq,
272 mask_and_ack_fall_edge_irq,
273 end_irq,
274 NULL
275 };
276
277 static struct hw_interrupt_type either_edge_irq_type = {
278 "Au1000 Rise or Fall Edge",
279 startup_irq,
280 shutdown_irq,
281 local_enable_irq,
282 local_disable_irq,
283 mask_and_ack_either_edge_irq,
284 end_irq,
285 NULL
286 };
287
288 static struct hw_interrupt_type level_irq_type = {
289 "Au1000 Level",
290 startup_irq,
291 shutdown_irq,
292 local_enable_irq,
293 local_disable_irq,
294 mask_and_ack_level_irq,
295 end_irq,
296 NULL
297 };
298
299 #ifdef CONFIG_PM
300 void startup_match20_interrupt(void)
301 {
302 local_enable_irq(AU1000_TOY_MATCH2_INT);
303 }
304 #endif
305
306 static void setup_local_irq(unsigned int irq_nr, int type, int int_req)
307 {
308 if (irq_nr > AU1000_MAX_INTR) return;
309 /* Config2[n], Config1[n], Config0[n] */
310 if (irq_nr > AU1000_LAST_INTC0_INT) {
311 switch (type) {
312 case INTC_INT_RISE_EDGE: /* 0:0:1 */
313 au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
314 au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
315 au_writel(1<<(irq_nr-32), IC1_CFG0SET);
316 irq_desc[irq_nr].handler = &rise_edge_irq_type;
317 break;
318 case INTC_INT_FALL_EDGE: /* 0:1:0 */
319 au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
320 au_writel(1<<(irq_nr-32), IC1_CFG1SET);
321 au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
322 irq_desc[irq_nr].handler = &fall_edge_irq_type;
323 break;
324 case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
325 au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
326 au_writel(1<<(irq_nr-32), IC1_CFG1SET);
327 au_writel(1<<(irq_nr-32), IC1_CFG0SET);
328 irq_desc[irq_nr].handler = &either_edge_irq_type;
329 break;
330 case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
331 au_writel(1<<(irq_nr-32), IC1_CFG2SET);
332 au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
333 au_writel(1<<(irq_nr-32), IC1_CFG0SET);
334 irq_desc[irq_nr].handler = &level_irq_type;
335 break;
336 case INTC_INT_LOW_LEVEL: /* 1:1:0 */
337 au_writel(1<<(irq_nr-32), IC1_CFG2SET);
338 au_writel(1<<(irq_nr-32), IC1_CFG1SET);
339 au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
340 irq_desc[irq_nr].handler = &level_irq_type;
341 break;
342 case INTC_INT_DISABLED: /* 0:0:0 */
343 au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
344 au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
345 au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
346 break;
347 default: /* disable the interrupt */
348 printk("unexpected int type %d (irq %d)\n", type, irq_nr);
349 au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
350 au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
351 au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
352 return;
353 }
354 if (int_req) /* assign to interrupt request 1 */
355 au_writel(1<<(irq_nr-32), IC1_ASSIGNCLR);
356 else /* assign to interrupt request 0 */
357 au_writel(1<<(irq_nr-32), IC1_ASSIGNSET);
358 au_writel(1<<(irq_nr-32), IC1_SRCSET);
359 au_writel(1<<(irq_nr-32), IC1_MASKCLR);
360 au_writel(1<<(irq_nr-32), IC1_WAKECLR);
361 }
362 else {
363 switch (type) {
364 case INTC_INT_RISE_EDGE: /* 0:0:1 */
365 au_writel(1<<irq_nr, IC0_CFG2CLR);
366 au_writel(1<<irq_nr, IC0_CFG1CLR);
367 au_writel(1<<irq_nr, IC0_CFG0SET);
368 irq_desc[irq_nr].handler = &rise_edge_irq_type;
369 break;
370 case INTC_INT_FALL_EDGE: /* 0:1:0 */
371 au_writel(1<<irq_nr, IC0_CFG2CLR);
372 au_writel(1<<irq_nr, IC0_CFG1SET);
373 au_writel(1<<irq_nr, IC0_CFG0CLR);
374 irq_desc[irq_nr].handler = &fall_edge_irq_type;
375 break;
376 case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
377 au_writel(1<<irq_nr, IC0_CFG2CLR);
378 au_writel(1<<irq_nr, IC0_CFG1SET);
379 au_writel(1<<irq_nr, IC0_CFG0SET);
380 irq_desc[irq_nr].handler = &either_edge_irq_type;
381 break;
382 case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
383 au_writel(1<<irq_nr, IC0_CFG2SET);
384 au_writel(1<<irq_nr, IC0_CFG1CLR);
385 au_writel(1<<irq_nr, IC0_CFG0SET);
386 irq_desc[irq_nr].handler = &level_irq_type;
387 break;
388 case INTC_INT_LOW_LEVEL: /* 1:1:0 */
389 au_writel(1<<irq_nr, IC0_CFG2SET);
390 au_writel(1<<irq_nr, IC0_CFG1SET);
391 au_writel(1<<irq_nr, IC0_CFG0CLR);
392 irq_desc[irq_nr].handler = &level_irq_type;
393 break;
394 case INTC_INT_DISABLED: /* 0:0:0 */
395 au_writel(1<<irq_nr, IC0_CFG0CLR);
396 au_writel(1<<irq_nr, IC0_CFG1CLR);
397 au_writel(1<<irq_nr, IC0_CFG2CLR);
398 break;
399 default: /* disable the interrupt */
400 printk("unexpected int type %d (irq %d)\n", type, irq_nr);
401 au_writel(1<<irq_nr, IC0_CFG0CLR);
402 au_writel(1<<irq_nr, IC0_CFG1CLR);
403 au_writel(1<<irq_nr, IC0_CFG2CLR);
404 return;
405 }
406 if (int_req) /* assign to interrupt request 1 */
407 au_writel(1<<irq_nr, IC0_ASSIGNCLR);
408 else /* assign to interrupt request 0 */
409 au_writel(1<<irq_nr, IC0_ASSIGNSET);
410 au_writel(1<<irq_nr, IC0_SRCSET);
411 au_writel(1<<irq_nr, IC0_MASKCLR);
412 au_writel(1<<irq_nr, IC0_WAKECLR);
413 }
414 au_sync();
415 }
416
417
418 void __init arch_init_irq(void)
419 {
420 int i;
421 unsigned long cp0_status;
422 au1xxx_irq_map_t *imp;
423 extern au1xxx_irq_map_t au1xxx_irq_map[];
424 extern au1xxx_irq_map_t au1xxx_ic0_map[];
425 extern int au1xxx_nr_irqs;
426 extern int au1xxx_ic0_nr_irqs;
427
428 cp0_status = read_c0_status();
429 memset(irq_desc, 0, sizeof(irq_desc));
430 set_except_vector(0, au1000_IRQ);
431
432 /* Initialize interrupt controllers to a safe state.
433 */
434 au_writel(0xffffffff, IC0_CFG0CLR);
435 au_writel(0xffffffff, IC0_CFG1CLR);
436 au_writel(0xffffffff, IC0_CFG2CLR);
437 au_writel(0xffffffff, IC0_MASKCLR);
438 au_writel(0xffffffff, IC0_ASSIGNSET);
439 au_writel(0xffffffff, IC0_WAKECLR);
440 au_writel(0xffffffff, IC0_SRCSET);
441 au_writel(0xffffffff, IC0_FALLINGCLR);
442 au_writel(0xffffffff, IC0_RISINGCLR);
443 au_writel(0x00000000, IC0_TESTBIT);
444
445 au_writel(0xffffffff, IC1_CFG0CLR);
446 au_writel(0xffffffff, IC1_CFG1CLR);
447 au_writel(0xffffffff, IC1_CFG2CLR);
448 au_writel(0xffffffff, IC1_MASKCLR);
449 au_writel(0xffffffff, IC1_ASSIGNSET);
450 au_writel(0xffffffff, IC1_WAKECLR);
451 au_writel(0xffffffff, IC1_SRCSET);
452 au_writel(0xffffffff, IC1_FALLINGCLR);
453 au_writel(0xffffffff, IC1_RISINGCLR);
454 au_writel(0x00000000, IC1_TESTBIT);
455
456 /* Initialize IC0, which is fixed per processor.
457 */
458 imp = au1xxx_ic0_map;
459 for (i=0; i<au1xxx_ic0_nr_irqs; i++) {
460 setup_local_irq(imp->im_irq, imp->im_type, imp->im_request);
461 imp++;
462 }
463
464 /* Now set up the irq mapping for the board.
465 */
466 imp = au1xxx_irq_map;
467 for (i=0; i<au1xxx_nr_irqs; i++) {
468 setup_local_irq(imp->im_irq, imp->im_type, imp->im_request);
469 imp++;
470 }
471
472 set_c0_status(ALLINTS);
473
474 /* Board specific IRQ initialization.
475 */
476 if (board_init_irq)
477 (*board_init_irq)();
478 }
479
480
481 /*
482 * Interrupts are nested. Even if an interrupt handler is registered
483 * as "fast", we might get another interrupt before we return from
484 * intcX_reqX_irqdispatch().
485 */
486
487 void intc0_req0_irqdispatch(struct pt_regs *regs)
488 {
489 int irq = 0;
490 static unsigned long intc0_req0 = 0;
491
492 intc0_req0 |= au_readl(IC0_REQ0INT);
493
494 if (!intc0_req0) return;
495
496 /*
497 * Because of the tight timing of SETUP token to reply
498 * transactions, the USB devices-side packet complete
499 * interrupt needs the highest priority.
500 */
501 if ((intc0_req0 & (1<<AU1000_USB_DEV_REQ_INT))) {
502 intc0_req0 &= ~(1<<AU1000_USB_DEV_REQ_INT);
503 do_IRQ(AU1000_USB_DEV_REQ_INT, regs);
504 return;
505 }
506
507 irq = au_ffs(intc0_req0) - 1;
508 intc0_req0 &= ~(1<<irq);
509 do_IRQ(irq, regs);
510 }
511
512
513 void intc0_req1_irqdispatch(struct pt_regs *regs)
514 {
515 int irq = 0;
516 static unsigned long intc0_req1 = 0;
517
518 intc0_req1 |= au_readl(IC0_REQ1INT);
519
520 if (!intc0_req1) return;
521
522 irq = au_ffs(intc0_req1) - 1;
523 intc0_req1 &= ~(1<<irq);
524 #ifdef CONFIG_PM
525 if (irq == AU1000_TOY_MATCH2_INT) {
526 mask_and_ack_rise_edge_irq(irq);
527 counter0_irq(irq, NULL, regs);
528 local_enable_irq(irq);
529 }
530 else
531 #endif
532 {
533 do_IRQ(irq, regs);
534 }
535 }
536
537
538 /*
539 * Interrupt Controller 1:
540 * interrupts 32 - 63
541 */
542 void intc1_req0_irqdispatch(struct pt_regs *regs)
543 {
544 int irq = 0;
545 static unsigned long intc1_req0 = 0;
546
547 intc1_req0 |= au_readl(IC1_REQ0INT);
548
549 if (!intc1_req0) return;
550
551 irq = au_ffs(intc1_req0) - 1;
552 intc1_req0 &= ~(1<<irq);
553 irq += 32;
554 do_IRQ(irq, regs);
555 }
556
557
558 void intc1_req1_irqdispatch(struct pt_regs *regs)
559 {
560 int irq = 0;
561 static unsigned long intc1_req1 = 0;
562
563 intc1_req1 |= au_readl(IC1_REQ1INT);
564
565 if (!intc1_req1) return;
566
567 irq = au_ffs(intc1_req1) - 1;
568 intc1_req1 &= ~(1<<irq);
569 irq += 32;
570 do_IRQ(irq, regs);
571 }
572
573 #ifdef CONFIG_PM
574
575 /* Save/restore the interrupt controller state.
576 * Called from the save/restore core registers as part of the
577 * au_sleep function in power.c.....maybe I should just pm_register()
578 * them instead?
579 */
580 static uint sleep_intctl_config0[2];
581 static uint sleep_intctl_config1[2];
582 static uint sleep_intctl_config2[2];
583 static uint sleep_intctl_src[2];
584 static uint sleep_intctl_assign[2];
585 static uint sleep_intctl_wake[2];
586 static uint sleep_intctl_mask[2];
587
588 void
589 save_au1xxx_intctl(void)
590 {
591 sleep_intctl_config0[0] = au_readl(IC0_CFG0RD);
592 sleep_intctl_config1[0] = au_readl(IC0_CFG1RD);
593 sleep_intctl_config2[0] = au_readl(IC0_CFG2RD);
594 sleep_intctl_src[0] = au_readl(IC0_SRCRD);
595 sleep_intctl_assign[0] = au_readl(IC0_ASSIGNRD);
596 sleep_intctl_wake[0] = au_readl(IC0_WAKERD);
597 sleep_intctl_mask[0] = au_readl(IC0_MASKRD);
598
599 sleep_intctl_config0[1] = au_readl(IC1_CFG0RD);
600 sleep_intctl_config1[1] = au_readl(IC1_CFG1RD);
601 sleep_intctl_config2[1] = au_readl(IC1_CFG2RD);
602 sleep_intctl_src[1] = au_readl(IC1_SRCRD);
603 sleep_intctl_assign[1] = au_readl(IC1_ASSIGNRD);
604 sleep_intctl_wake[1] = au_readl(IC1_WAKERD);
605 sleep_intctl_mask[1] = au_readl(IC1_MASKRD);
606 }
607
608 /* For most restore operations, we clear the entire register and
609 * then set the bits we found during the save.
610 */
611 void
612 restore_au1xxx_intctl(void)
613 {
614 au_writel(0xffffffff, IC0_MASKCLR); au_sync();
615
616 au_writel(0xffffffff, IC0_CFG0CLR); au_sync();
617 au_writel(sleep_intctl_config0[0], IC0_CFG0SET); au_sync();
618 au_writel(0xffffffff, IC0_CFG1CLR); au_sync();
619 au_writel(sleep_intctl_config1[0], IC0_CFG1SET); au_sync();
620 au_writel(0xffffffff, IC0_CFG2CLR); au_sync();
621 au_writel(sleep_intctl_config2[0], IC0_CFG2SET); au_sync();
622 au_writel(0xffffffff, IC0_SRCCLR); au_sync();
623 au_writel(sleep_intctl_src[0], IC0_SRCSET); au_sync();
624 au_writel(0xffffffff, IC0_ASSIGNCLR); au_sync();
625 au_writel(sleep_intctl_assign[0], IC0_ASSIGNSET); au_sync();
626 au_writel(0xffffffff, IC0_WAKECLR); au_sync();
627 au_writel(sleep_intctl_wake[0], IC0_WAKESET); au_sync();
628 au_writel(0xffffffff, IC0_RISINGCLR); au_sync();
629 au_writel(0xffffffff, IC0_FALLINGCLR); au_sync();
630 au_writel(0x00000000, IC0_TESTBIT); au_sync();
631
632 au_writel(0xffffffff, IC1_MASKCLR); au_sync();
633
634 au_writel(0xffffffff, IC1_CFG0CLR); au_sync();
635 au_writel(sleep_intctl_config0[1], IC1_CFG0SET); au_sync();
636 au_writel(0xffffffff, IC1_CFG1CLR); au_sync();
637 au_writel(sleep_intctl_config1[1], IC1_CFG1SET); au_sync();
638 au_writel(0xffffffff, IC1_CFG2CLR); au_sync();
639 au_writel(sleep_intctl_config2[1], IC1_CFG2SET); au_sync();
640 au_writel(0xffffffff, IC1_SRCCLR); au_sync();
641 au_writel(sleep_intctl_src[1], IC1_SRCSET); au_sync();
642 au_writel(0xffffffff, IC1_ASSIGNCLR); au_sync();
643 au_writel(sleep_intctl_assign[1], IC1_ASSIGNSET); au_sync();
644 au_writel(0xffffffff, IC1_WAKECLR); au_sync();
645 au_writel(sleep_intctl_wake[1], IC1_WAKESET); au_sync();
646 au_writel(0xffffffff, IC1_RISINGCLR); au_sync();
647 au_writel(0xffffffff, IC1_FALLINGCLR); au_sync();
648 au_writel(0x00000000, IC1_TESTBIT); au_sync();
649
650 au_writel(sleep_intctl_mask[1], IC1_MASKSET); au_sync();
651
652 au_writel(sleep_intctl_mask[0], IC0_MASKSET); au_sync();
653 }
654 #endif /* CONFIG_PM */
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree