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[PATCH] nommu: export two symbols for drivers to use
[usb.git] / drivers / pcmcia / m8xx_pcmcia.c
blobd0f68ab8f04119c12661a27e1785d76b6a372be4
1 /*
2 * m8xx_pcmcia.c - Linux PCMCIA socket driver for the mpc8xx series.
3 *
4 * (C) 1999-2000 Magnus Damm <damm@bitsmart.com>
5 * (C) 2001-2002 Montavista Software, Inc.
6 * <mlocke@mvista.com>
7 *
8 * Support for two slots by Cyclades Corporation
9 * <oliver.kurth@cyclades.de>
10 * Further fixes, v2.6 kernel port
11 * <marcelo.tosatti@cyclades.com>
12 *
13 * Some fixes, additions (C) 2005 Montavista Software, Inc.
14 * <vbordug@ru.mvista.com>
15 *
16 * "The ExCA standard specifies that socket controllers should provide
17 * two IO and five memory windows per socket, which can be independently
18 * configured and positioned in the host address space and mapped to
19 * arbitrary segments of card address space. " - David A Hinds. 1999
20 *
21 * This controller does _not_ meet the ExCA standard.
22 *
23 * m8xx pcmcia controller brief info:
24 * + 8 windows (attrib, mem, i/o)
25 * + up to two slots (SLOT_A and SLOT_B)
26 * + inputpins, outputpins, event and mask registers.
27 * - no offset register. sigh.
28 *
29 * Because of the lacking offset register we must map the whole card.
30 * We assign each memory window PCMCIA_MEM_WIN_SIZE address space.
31 * Make sure there is (PCMCIA_MEM_WIN_SIZE * PCMCIA_MEM_WIN_NO
32 * * PCMCIA_SOCKETS_NO) bytes at PCMCIA_MEM_WIN_BASE.
33 * The i/o windows are dynamically allocated at PCMCIA_IO_WIN_BASE.
34 * They are maximum 64KByte each...
35 */
36
37 #include <linux/module.h>
38 #include <linux/init.h>
39 #include <linux/types.h>
40 #include <linux/fcntl.h>
41 #include <linux/string.h>
42
43 #include <asm/io.h>
44 #include <asm/bitops.h>
45 #include <asm/system.h>
46
47 #include <linux/kernel.h>
48 #include <linux/errno.h>
49 #include <linux/sched.h>
50 #include <linux/slab.h>
51 #include <linux/timer.h>
52 #include <linux/ioport.h>
53 #include <linux/delay.h>
54 #include <linux/interrupt.h>
55 #include <linux/platform_device.h>
56
57 #include <asm/mpc8xx.h>
58 #include <asm/8xx_immap.h>
59 #include <asm/irq.h>
60
61 #include <pcmcia/version.h>
62 #include <pcmcia/cs_types.h>
63 #include <pcmcia/cs.h>
64 #include <pcmcia/ss.h>
65
66 #ifdef PCMCIA_DEBUG
67 static int pc_debug = PCMCIA_DEBUG;
68 module_param(pc_debug, int, 0);
69 #define dprintk(args...) printk(KERN_DEBUG "m8xx_pcmcia: " args);
70 #else
71 #define dprintk(args...)
72 #endif
73
74 #define pcmcia_info(args...) printk(KERN_INFO "m8xx_pcmcia: "args)
75 #define pcmcia_error(args...) printk(KERN_ERR "m8xx_pcmcia: "args)
76
77 static const char *version = "Version 0.06, Aug 2005";
78 MODULE_LICENSE("Dual MPL/GPL");
79
80 #if !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B)
81
82 /* The RPX series use SLOT_B */
83 #if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
84 #define CONFIG_PCMCIA_SLOT_B
85 #define CONFIG_BD_IS_MHZ
86 #endif
87
88 /* The ADS board use SLOT_A */
89 #ifdef CONFIG_ADS
90 #define CONFIG_PCMCIA_SLOT_A
91 #define CONFIG_BD_IS_MHZ
92 #endif
93
94 /* The FADS series are a mess */
95 #ifdef CONFIG_FADS
96 #if defined(CONFIG_MPC860T) || defined(CONFIG_MPC860) || defined(CONFIG_MPC821)
97 #define CONFIG_PCMCIA_SLOT_A
98 #else
99 #define CONFIG_PCMCIA_SLOT_B
100 #endif
101 #endif
102
103 #if defined(CONFIG_MPC885ADS)
104 #define CONFIG_PCMCIA_SLOT_A
105 #define PCMCIA_GLITCHY_CD
106 #endif
107
108 /* Cyclades ACS uses both slots */
109 #ifdef CONFIG_PRxK
110 #define CONFIG_PCMCIA_SLOT_A
111 #define CONFIG_PCMCIA_SLOT_B
112 #endif
113
114 #endif /* !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B) */
115
116 #if defined(CONFIG_PCMCIA_SLOT_A) && defined(CONFIG_PCMCIA_SLOT_B)
117
118 #define PCMCIA_SOCKETS_NO 2
119 /* We have only 8 windows, dualsocket support will be limited. */
120 #define PCMCIA_MEM_WIN_NO 2
121 #define PCMCIA_IO_WIN_NO 2
122 #define PCMCIA_SLOT_MSG "SLOT_A and SLOT_B"
123
124 #elif defined(CONFIG_PCMCIA_SLOT_A) || defined(CONFIG_PCMCIA_SLOT_B)
125
126 #define PCMCIA_SOCKETS_NO 1
127 /* full support for one slot */
128 #define PCMCIA_MEM_WIN_NO 5
129 #define PCMCIA_IO_WIN_NO 2
130
131 /* define _slot_ to be able to optimize macros */
132
133 #ifdef CONFIG_PCMCIA_SLOT_A
134 #define _slot_ 0
135 #define PCMCIA_SLOT_MSG "SLOT_A"
136 #else
137 #define _slot_ 1
138 #define PCMCIA_SLOT_MSG "SLOT_B"
139 #endif
140
141 #else
142 #error m8xx_pcmcia: Bad configuration!
143 #endif
144
145 /* ------------------------------------------------------------------------- */
146
147 #define PCMCIA_MEM_WIN_BASE 0xe0000000 /* base address for memory window 0 */
148 #define PCMCIA_MEM_WIN_SIZE 0x04000000 /* each memory window is 64 MByte */
149 #define PCMCIA_IO_WIN_BASE _IO_BASE /* base address for io window 0 */
150
151 #define PCMCIA_SCHLVL PCMCIA_INTERRUPT /* Status Change Interrupt Level */
152
153 /* ------------------------------------------------------------------------- */
154
155 /* 2.4.x and newer has this always in HZ */
156 #define M8XX_BUSFREQ ((((bd_t *)&(__res))->bi_busfreq))
157
158 static int pcmcia_schlvl = PCMCIA_SCHLVL;
159
160 static DEFINE_SPINLOCK(events_lock);
161
162
163 #define PCMCIA_SOCKET_KEY_5V 1
164 #define PCMCIA_SOCKET_KEY_LV 2
165
166 /* look up table for pgcrx registers */
167 static u32 *m8xx_pgcrx[2] = {
168 &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcra,
169 &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcrb
170 };
171
172 /*
173 * This structure is used to address each window in the PCMCIA controller.
174 *
175 * Keep in mind that we assume that pcmcia_win[n+1] is mapped directly
176 * after pcmcia_win[n]...
177 */
178
179 struct pcmcia_win {
180 u32 br;
181 u32 or;
182 };
183
184 /*
185 * For some reason the hardware guys decided to make both slots share
186 * some registers.
187 *
188 * Could someone invent object oriented hardware ?
189 *
190 * The macros are used to get the right bit from the registers.
191 * SLOT_A : slot = 0
192 * SLOT_B : slot = 1
193 */
194
195 #define M8XX_PCMCIA_VS1(slot) (0x80000000 >> (slot << 4))
196 #define M8XX_PCMCIA_VS2(slot) (0x40000000 >> (slot << 4))
197 #define M8XX_PCMCIA_VS_MASK(slot) (0xc0000000 >> (slot << 4))
198 #define M8XX_PCMCIA_VS_SHIFT(slot) (30 - (slot << 4))
199
200 #define M8XX_PCMCIA_WP(slot) (0x20000000 >> (slot << 4))
201 #define M8XX_PCMCIA_CD2(slot) (0x10000000 >> (slot << 4))
202 #define M8XX_PCMCIA_CD1(slot) (0x08000000 >> (slot << 4))
203 #define M8XX_PCMCIA_BVD2(slot) (0x04000000 >> (slot << 4))
204 #define M8XX_PCMCIA_BVD1(slot) (0x02000000 >> (slot << 4))
205 #define M8XX_PCMCIA_RDY(slot) (0x01000000 >> (slot << 4))
206 #define M8XX_PCMCIA_RDY_L(slot) (0x00800000 >> (slot << 4))
207 #define M8XX_PCMCIA_RDY_H(slot) (0x00400000 >> (slot << 4))
208 #define M8XX_PCMCIA_RDY_R(slot) (0x00200000 >> (slot << 4))
209 #define M8XX_PCMCIA_RDY_F(slot) (0x00100000 >> (slot << 4))
210 #define M8XX_PCMCIA_MASK(slot) (0xFFFF0000 >> (slot << 4))
211
212 #define M8XX_PCMCIA_POR_VALID 0x00000001
213 #define M8XX_PCMCIA_POR_WRPROT 0x00000002
214 #define M8XX_PCMCIA_POR_ATTRMEM 0x00000010
215 #define M8XX_PCMCIA_POR_IO 0x00000018
216 #define M8XX_PCMCIA_POR_16BIT 0x00000040
217
218 #define M8XX_PGCRX(slot) m8xx_pgcrx[slot]
219
220 #define M8XX_PGCRX_CXOE 0x00000080
221 #define M8XX_PGCRX_CXRESET 0x00000040
222
223 /* we keep one lookup table per socket to check flags */
224
225 #define PCMCIA_EVENTS_MAX 5 /* 4 max at a time + termination */
226
227 struct event_table {
228 u32 regbit;
229 u32 eventbit;
230 };
231
232 struct socket_info {
233 void (*handler)(void *info, u32 events);
234 void *info;
235
236 u32 slot;
237
238 socket_state_t state;
239 struct pccard_mem_map mem_win[PCMCIA_MEM_WIN_NO];
240 struct pccard_io_map io_win[PCMCIA_IO_WIN_NO];
241 struct event_table events[PCMCIA_EVENTS_MAX];
242 struct pcmcia_socket socket;
243 };
244
245 static struct socket_info socket[PCMCIA_SOCKETS_NO];
246
247 /*
248 * Search this table to see if the windowsize is
249 * supported...
250 */
251
252 #define M8XX_SIZES_NO 32
253
254 static const u32 m8xx_size_to_gray[M8XX_SIZES_NO] =
255 {
256 0x00000001, 0x00000002, 0x00000008, 0x00000004,
257 0x00000080, 0x00000040, 0x00000010, 0x00000020,
258 0x00008000, 0x00004000, 0x00001000, 0x00002000,
259 0x00000100, 0x00000200, 0x00000800, 0x00000400,
260
261 0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
262 0x01000000, 0x02000000, 0xffffffff, 0x04000000,
263 0x00010000, 0x00020000, 0x00080000, 0x00040000,
264 0x00800000, 0x00400000, 0x00100000, 0x00200000
265 };
266
267 /* ------------------------------------------------------------------------- */
268
269 static irqreturn_t m8xx_interrupt(int irq, void *dev, struct pt_regs *regs);
270
271 #define PCMCIA_BMT_LIMIT (15*4) /* Bus Monitor Timeout value */
272
273 /* ------------------------------------------------------------------------- */
274 /* board specific stuff: */
275 /* voltage_set(), hardware_enable() and hardware_disable() */
276 /* ------------------------------------------------------------------------- */
277 /* RPX Boards from Embedded Planet */
278
279 #if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
280
281 /* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks.
282 * SYPCR is write once only, therefore must the slowest memory be faster
283 * than the bus monitor or we will get a machine check due to the bus timeout.
284 */
285
286 #define PCMCIA_BOARD_MSG "RPX CLASSIC or RPX LITE"
287
288 #undef PCMCIA_BMT_LIMIT
289 #define PCMCIA_BMT_LIMIT (6*8)
290
291 static int voltage_set(int slot, int vcc, int vpp)
292 {
293 u32 reg = 0;
294
295 switch(vcc) {
296 case 0: break;
297 case 33:
298 reg |= BCSR1_PCVCTL4;
299 break;
300 case 50:
301 reg |= BCSR1_PCVCTL5;
302 break;
303 default:
304 return 1;
305 }
306
307 switch(vpp) {
308 case 0: break;
309 case 33:
310 case 50:
311 if(vcc == vpp)
312 reg |= BCSR1_PCVCTL6;
313 else
314 return 1;
315 break;
316 case 120:
317 reg |= BCSR1_PCVCTL7;
318 default:
319 return 1;
320 }
321
322 if(!((vcc == 50) || (vcc == 0)))
323 return 1;
324
325 /* first, turn off all power */
326
327 out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) & ~(BCSR1_PCVCTL4 | BCSR1_PCVCTL5 | BCSR1_PCVCTL6 | BCSR1_PCVCTL7));
328
329 /* enable new powersettings */
330
331 out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) | reg);
332
333 return 0;
334 }
335
336 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
337 #define hardware_enable(_slot_) /* No hardware to enable */
338 #define hardware_disable(_slot_) /* No hardware to disable */
339
340 #endif /* CONFIG_RPXCLASSIC */
341
342 /* FADS Boards from Motorola */
343
344 #if defined(CONFIG_FADS)
345
346 #define PCMCIA_BOARD_MSG "FADS"
347
348 static int voltage_set(int slot, int vcc, int vpp)
349 {
350 u32 reg = 0;
351
352 switch(vcc) {
353 case 0:
354 break;
355 case 33:
356 reg |= BCSR1_PCCVCC0;
357 break;
358 case 50:
359 reg |= BCSR1_PCCVCC1;
360 break;
361 default:
362 return 1;
363 }
364
365 switch(vpp) {
366 case 0:
367 break;
368 case 33:
369 case 50:
370 if(vcc == vpp)
371 reg |= BCSR1_PCCVPP1;
372 else
373 return 1;
374 break;
375 case 120:
376 if ((vcc == 33) || (vcc == 50))
377 reg |= BCSR1_PCCVPP0;
378 else
379 return 1;
380 default:
381 return 1;
382 }
383
384 /* first, turn off all power */
385 out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) & ~(BCSR1_PCCVCC_MASK | BCSR1_PCCVPP_MASK));
386
387 /* enable new powersettings */
388 out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) | reg);
389
390 return 0;
391 }
392
393 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
394
395 static void hardware_enable(int slot)
396 {
397 out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) & ~BCSR1_PCCEN);
398 }
399
400 static void hardware_disable(int slot)
401 {
402 out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) | BCSR1_PCCEN);
403 }
404
405 #endif
406
407 /* MPC885ADS Boards */
408
409 #if defined(CONFIG_MPC885ADS)
410
411 #define PCMCIA_BOARD_MSG "MPC885ADS"
412
413 static int voltage_set(int slot, int vcc, int vpp)
414 {
415 u32 reg = 0;
416 unsigned *bcsr_io;
417
418 bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
419
420 switch(vcc) {
421 case 0:
422 break;
423 case 33:
424 reg |= BCSR1_PCCVCC0;
425 break;
426 case 50:
427 reg |= BCSR1_PCCVCC1;
428 break;
429 default:
430 return 1;
431 }
432
433 switch(vpp) {
434 case 0:
435 break;
436 case 33:
437 case 50:
438 if(vcc == vpp)
439 reg |= BCSR1_PCCVPP1;
440 else
441 return 1;
442 break;
443 case 120:
444 if ((vcc == 33) || (vcc == 50))
445 reg |= BCSR1_PCCVPP0;
446 else
447 return 1;
448 default:
449 return 1;
450 }
451
452 /* first, turn off all power */
453 out_be32(bcsr_io, in_be32(bcsr_io) & ~(BCSR1_PCCVCC_MASK | BCSR1_PCCVPP_MASK));
454
455 /* enable new powersettings */
456 out_be32(bcsr_io, in_be32(bcsr_io) | reg);
457
458 iounmap(bcsr_io);
459 return 0;
460 }
461
462 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
463
464 static void hardware_enable(int slot)
465 {
466 unsigned *bcsr_io;
467
468 bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
469 out_be32(bcsr_io, in_be32(bcsr_io) & ~BCSR1_PCCEN);
470 iounmap(bcsr_io);
471 }
472
473 static void hardware_disable(int slot)
474 {
475 unsigned *bcsr_io;
476
477 bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
478 out_be32(bcsr_io, in_be32(bcsr_io) | BCSR1_PCCEN);
479 iounmap(bcsr_io);
480 }
481
482 #endif
483
484 /* ------------------------------------------------------------------------- */
485 /* Motorola MBX860 */
486
487 #if defined(CONFIG_MBX)
488
489 #define PCMCIA_BOARD_MSG "MBX"
490
491 static int voltage_set(int slot, int vcc, int vpp)
492 {
493 u8 reg = 0;
494
495 switch(vcc) {
496 case 0:
497 break;
498 case 33:
499 reg |= CSR2_VCC_33;
500 break;
501 case 50:
502 reg |= CSR2_VCC_50;
503 break;
504 default:
505 return 1;
506 }
507
508 switch(vpp) {
509 case 0:
510 break;
511 case 33:
512 case 50:
513 if(vcc == vpp)
514 reg |= CSR2_VPP_VCC;
515 else
516 return 1;
517 break;
518 case 120:
519 if ((vcc == 33) || (vcc == 50))
520 reg |= CSR2_VPP_12;
521 else
522 return 1;
523 default:
524 return 1;
525 }
526
527 /* first, turn off all power */
528 out_8((u8 *)MBX_CSR2_ADDR, in_8((u8 *)MBX_CSR2_ADDR) & ~(CSR2_VCC_MASK | CSR2_VPP_MASK));
529
530 /* enable new powersettings */
531 out_8((u8 *)MBX_CSR2_ADDR, in_8((u8 *)MBX_CSR2_ADDR) | reg);
532
533 return 0;
534 }
535
536 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
537 #define hardware_enable(_slot_) /* No hardware to enable */
538 #define hardware_disable(_slot_) /* No hardware to disable */
539
540 #endif /* CONFIG_MBX */
541
542 #if defined(CONFIG_PRxK)
543 #include <asm/cpld.h>
544 extern volatile fpga_pc_regs *fpga_pc;
545
546 #define PCMCIA_BOARD_MSG "MPC855T"
547
548 static int voltage_set(int slot, int vcc, int vpp)
549 {
550 u8 reg = 0;
551 u8 regread;
552 cpld_regs *ccpld = get_cpld();
553
554 switch(vcc) {
555 case 0:
556 break;
557 case 33:
558 reg |= PCMCIA_VCC_33;
559 break;
560 case 50:
561 reg |= PCMCIA_VCC_50;
562 break;
563 default:
564 return 1;
565 }
566
567 switch(vpp) {
568 case 0:
569 break;
570 case 33:
571 case 50:
572 if(vcc == vpp)
573 reg |= PCMCIA_VPP_VCC;
574 else
575 return 1;
576 break;
577 case 120:
578 if ((vcc == 33) || (vcc == 50))
579 reg |= PCMCIA_VPP_12;
580 else
581 return 1;
582 default:
583 return 1;
584 }
585
586 reg = reg >> (slot << 2);
587 regread = in_8(&ccpld->fpga_pc_ctl);
588 if (reg != (regread & ((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2)))) {
589 /* enable new powersettings */
590 regread = regread & ~((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2));
591 out_8(&ccpld->fpga_pc_ctl, reg | regread);
592 msleep(100);
593 }
594
595 return 0;
596 }
597
598 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_LV
599 #define hardware_enable(_slot_) /* No hardware to enable */
600 #define hardware_disable(_slot_) /* No hardware to disable */
601
602 #endif /* CONFIG_PRxK */
603
604 static void m8xx_shutdown(void)
605 {
606 u32 m, i;
607 struct pcmcia_win *w;
608
609 for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
610 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
611
612 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, M8XX_PCMCIA_MASK(i));
613 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) & ~M8XX_PCMCIA_MASK(i));
614
615 /* turn off interrupt and disable CxOE */
616 out_be32(M8XX_PGCRX(i), M8XX_PGCRX_CXOE);
617
618 /* turn off memory windows */
619 for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
620 out_be32(&w->or, 0); /* set to not valid */
621 w++;
622 }
623
624 /* turn off voltage */
625 voltage_set(i, 0, 0);
626
627 /* disable external hardware */
628 hardware_disable(i);
629 }
630
631 free_irq(pcmcia_schlvl, NULL);
632 }
633
634 static struct device_driver m8xx_driver = {
635 .name = "m8xx-pcmcia",
636 .bus = &platform_bus_type,
637 .suspend = pcmcia_socket_dev_suspend,
638 .resume = pcmcia_socket_dev_resume,
639 };
640
641 static struct platform_device m8xx_device = {
642 .name = "m8xx-pcmcia",
643 .id = 0,
644 };
645
646 static u32 pending_events[PCMCIA_SOCKETS_NO];
647 static DEFINE_SPINLOCK(pending_event_lock);
648
649 static irqreturn_t m8xx_interrupt(int irq, void *dev, struct pt_regs *regs)
650 {
651 struct socket_info *s;
652 struct event_table *e;
653 unsigned int i, events, pscr, pipr, per;
654
655 dprintk("Interrupt!\n");
656 /* get interrupt sources */
657
658 pscr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr);
659 pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
660 per = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per);
661
662 for(i = 0; i < PCMCIA_SOCKETS_NO; i++) {
663 s = &socket[i];
664 e = &s->events[0];
665 events = 0;
666
667 while(e->regbit) {
668 if(pscr & e->regbit)
669 events |= e->eventbit;
670
671 e++;
672 }
673
674 /*
675 * report only if both card detect signals are the same
676 * not too nice done,
677 * we depend on that CD2 is the bit to the left of CD1...
678 */
679 if(events & SS_DETECT)
680 if(((pipr & M8XX_PCMCIA_CD2(i)) >> 1) ^
681 (pipr & M8XX_PCMCIA_CD1(i)))
682 {
683 events &= ~SS_DETECT;
684 }
685
686 #ifdef PCMCIA_GLITCHY_CD
687 /*
688 * I've experienced CD problems with my ADS board.
689 * We make an extra check to see if there was a
690 * real change of Card detection.
691 */
692
693 if((events & SS_DETECT) &&
694 ((pipr &
695 (M8XX_PCMCIA_CD2(i) | M8XX_PCMCIA_CD1(i))) == 0) &&
696 (s->state.Vcc | s->state.Vpp)) {
697 events &= ~SS_DETECT;
698 /*printk( "CD glitch workaround - CD = 0x%08x!\n",
699 (pipr & (M8XX_PCMCIA_CD2(i)
700 | M8XX_PCMCIA_CD1(i))));*/
701 }
702 #endif
703
704 /* call the handler */
705
706 dprintk("slot %u: events = 0x%02x, pscr = 0x%08x, "
707 "pipr = 0x%08x\n",
708 i, events, pscr, pipr);
709
710 if(events) {
711 spin_lock(&pending_event_lock);
712 pending_events[i] |= events;
713 spin_unlock(&pending_event_lock);
714 /*
715 * Turn off RDY_L bits in the PER mask on
716 * CD interrupt receival.
717 *
718 * They can generate bad interrupts on the
719 * ACS4,8,16,32. - marcelo
720 */
721 per &= ~M8XX_PCMCIA_RDY_L(0);
722 per &= ~M8XX_PCMCIA_RDY_L(1);
723
724 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, per);
725
726 if (events)
727 pcmcia_parse_events(&socket[i].socket, events);
728 }
729 }
730
731 /* clear the interrupt sources */
732 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, pscr);
733
734 dprintk("Interrupt done.\n");
735
736 return IRQ_HANDLED;
737 }
738
739 static u32 m8xx_get_graycode(u32 size)
740 {
741 u32 k;
742
743 for(k = 0; k < M8XX_SIZES_NO; k++)
744 if(m8xx_size_to_gray[k] == size)
745 break;
746
747 if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
748 k = -1;
749
750 return k;
751 }
752
753 static u32 m8xx_get_speed(u32 ns, u32 is_io)
754 {
755 u32 reg, clocks, psst, psl, psht;
756
757 if(!ns) {
758
759 /*
760 * We get called with IO maps setup to 0ns
761 * if not specified by the user.
762 * They should be 255ns.
763 */
764
765 if(is_io)
766 ns = 255;
767 else
768 ns = 100; /* fast memory if 0 */
769 }
770
771 /*
772 * In PSST, PSL, PSHT fields we tell the controller
773 * timing parameters in CLKOUT clock cycles.
774 * CLKOUT is the same as GCLK2_50.
775 */
776
777 /* how we want to adjust the timing - in percent */
778
779 #define ADJ 180 /* 80 % longer accesstime - to be sure */
780
781 clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
782 clocks = (clocks * ADJ) / (100*1000);
783 if(clocks >= PCMCIA_BMT_LIMIT) {
784 printk( "Max access time limit reached\n");
785 clocks = PCMCIA_BMT_LIMIT-1;
786 }
787
788 psst = clocks / 7; /* setup time */
789 psht = clocks / 7; /* hold time */
790 psl = (clocks * 5) / 7; /* strobe length */
791
792 psst += clocks - (psst + psht + psl);
793
794 reg = psst << 12;
795 reg |= psl << 7;
796 reg |= psht << 16;
797
798 return reg;
799 }
800
801 static int m8xx_get_status(struct pcmcia_socket *sock, unsigned int *value)
802 {
803 int lsock = container_of(sock, struct socket_info, socket)->slot;
804 struct socket_info *s = &socket[lsock];
805 unsigned int pipr, reg;
806
807 pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
808
809 *value = ((pipr & (M8XX_PCMCIA_CD1(lsock)
810 | M8XX_PCMCIA_CD2(lsock))) == 0) ? SS_DETECT : 0;
811 *value |= (pipr & M8XX_PCMCIA_WP(lsock)) ? SS_WRPROT : 0;
812
813 if (s->state.flags & SS_IOCARD)
814 *value |= (pipr & M8XX_PCMCIA_BVD1(lsock)) ? SS_STSCHG : 0;
815 else {
816 *value |= (pipr & M8XX_PCMCIA_RDY(lsock)) ? SS_READY : 0;
817 *value |= (pipr & M8XX_PCMCIA_BVD1(lsock)) ? SS_BATDEAD : 0;
818 *value |= (pipr & M8XX_PCMCIA_BVD2(lsock)) ? SS_BATWARN : 0;
819 }
820
821 if (s->state.Vcc | s->state.Vpp)
822 *value |= SS_POWERON;
823
824 /*
825 * Voltage detection:
826 * This driver only supports 16-Bit pc-cards.
827 * Cardbus is not handled here.
828 *
829 * To determine what voltage to use we must read the VS1 and VS2 pin.
830 * Depending on what socket type is present,
831 * different combinations mean different things.
832 *
833 * Card Key Socket Key VS1 VS2 Card Vcc for CIS parse
834 *
835 * 5V 5V, LV* NC NC 5V only 5V (if available)
836 *
837 * 5V 5V, LV* GND NC 5 or 3.3V as low as possible
838 *
839 * 5V 5V, LV* GND GND 5, 3.3, x.xV as low as possible
840 *
841 * LV* 5V - - shall not fit into socket
842 *
843 * LV* LV* GND NC 3.3V only 3.3V
844 *
845 * LV* LV* NC GND x.xV x.xV (if avail.)
846 *
847 * LV* LV* GND GND 3.3 or x.xV as low as possible
848 *
849 * *LV means Low Voltage
850 *
851 *
852 * That gives us the following table:
853 *
854 * Socket VS1 VS2 Voltage
855 *
856 * 5V NC NC 5V
857 * 5V NC GND none (should not be possible)
858 * 5V GND NC >= 3.3V
859 * 5V GND GND >= x.xV
860 *
861 * LV NC NC 5V (if available)
862 * LV NC GND x.xV (if available)
863 * LV GND NC 3.3V
864 * LV GND GND >= x.xV
865 *
866 * So, how do I determine if I have a 5V or a LV
867 * socket on my board? Look at the socket!
868 *
869 *
870 * Socket with 5V key:
871 * ++--------------------------------------------+
872 * || |
873 * || ||
874 * || ||
875 * | |
876 * +---------------------------------------------+
877 *
878 * Socket with LV key:
879 * ++--------------------------------------------+
880 * || |
881 * | ||
882 * | ||
883 * | |
884 * +---------------------------------------------+
885 *
886 *
887 * With other words - LV only cards does not fit
888 * into the 5V socket!
889 */
890
891 /* read out VS1 and VS2 */
892
893 reg = (pipr & M8XX_PCMCIA_VS_MASK(lsock))
894 >> M8XX_PCMCIA_VS_SHIFT(lsock);
895
896 if(socket_get(lsock) == PCMCIA_SOCKET_KEY_LV) {
897 switch(reg) {
898 case 1:
899 *value |= SS_3VCARD;
900 break; /* GND, NC - 3.3V only */
901 case 2:
902 *value |= SS_XVCARD;
903 break; /* NC. GND - x.xV only */
904 };
905 }
906
907 dprintk("GetStatus(%d) = %#2.2x\n", lsock, *value);
908 return 0;
909 }
910
911 static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
912 {
913 int lsock = container_of(sock, struct socket_info, socket)->slot;
914 struct socket_info *s = &socket[lsock];
915 struct event_table *e;
916 unsigned int reg;
917 unsigned long flags;
918
919 dprintk( "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
920 "io_irq %d, csc_mask %#2.2x)\n", lsock, state->flags,
921 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
922
923 /* First, set voltage - bail out if invalid */
924 if(voltage_set(lsock, state->Vcc, state->Vpp))
925 return -EINVAL;
926
927 /* Take care of reset... */
928 if(state->flags & SS_RESET)
929 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXRESET); /* active high */
930 else
931 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXRESET);
932
933 /* ... and output enable. */
934
935 /* The CxOE signal is connected to a 74541 on the ADS.
936 I guess most other boards used the ADS as a reference.
937 I tried to control the CxOE signal with SS_OUTPUT_ENA,
938 but the reset signal seems connected via the 541.
939 If the CxOE is left high are some signals tristated and
940 no pullups are present -> the cards act wierd.
941 So right now the buffers are enabled if the power is on. */
942
943 if(state->Vcc || state->Vpp)
944 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXOE); /* active low */
945 else
946 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXOE);
947
948 /*
949 * We'd better turn off interrupts before
950 * we mess with the events-table..
951 */
952
953 spin_lock_irqsave(&events_lock, flags);
954
955 /*
956 * Play around with the interrupt mask to be able to
957 * give the events the generic pcmcia driver wants us to.
958 */
959
960 e = &s->events[0];
961 reg = 0;
962
963 if(state->csc_mask & SS_DETECT) {
964 e->eventbit = SS_DETECT;
965 reg |= e->regbit = (M8XX_PCMCIA_CD2(lsock)
966 | M8XX_PCMCIA_CD1(lsock));
967 e++;
968 }
969 if(state->flags & SS_IOCARD) {
970 /*
971 * I/O card
972 */
973 if(state->csc_mask & SS_STSCHG) {
974 e->eventbit = SS_STSCHG;
975 reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock);
976 e++;
977 }
978 /*
979 * If io_irq is non-zero we should enable irq.
980 */
981 if(state->io_irq) {
982 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | mk_int_int_mask(state->io_irq) << 24);
983 /*
984 * Strange thing here:
985 * The manual does not tell us which interrupt
986 * the sources generate.
987 * Anyhow, I found out that RDY_L generates IREQLVL.
988 *
989 * We use level triggerd interrupts, and they don't
990 * have to be cleared in PSCR in the interrupt handler.
991 */
992 reg |= M8XX_PCMCIA_RDY_L(lsock);
993 }
994 else
995 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & 0x00ffffff);
996 }
997 else {
998 /*
999 * Memory card
1000 */
1001 if(state->csc_mask & SS_BATDEAD) {
1002 e->eventbit = SS_BATDEAD;
1003 reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock);
1004 e++;
1005 }
1006 if(state->csc_mask & SS_BATWARN) {
1007 e->eventbit = SS_BATWARN;
1008 reg |= e->regbit = M8XX_PCMCIA_BVD2(lsock);
1009 e++;
1010 }
1011 /* What should I trigger on - low/high,raise,fall? */
1012 if(state->csc_mask & SS_READY) {
1013 e->eventbit = SS_READY;
1014 reg |= e->regbit = 0; //??
1015 e++;
1016 }
1017 }
1018
1019 e->regbit = 0; /* terminate list */
1020
1021 /*
1022 * Clear the status changed .
1023 * Port A and Port B share the same port.
1024 * Writing ones will clear the bits.
1025 */
1026
1027 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, reg);
1028
1029 /*
1030 * Write the mask.
1031 * Port A and Port B share the same port.
1032 * Need for read-modify-write.
1033 * Ones will enable the interrupt.
1034 */
1035
1036 /*
1037 reg |= ((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per
1038 & M8XX_PCMCIA_MASK(lsock);
1039 */
1040
1041 reg |= in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
1042 (M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1));
1043
1044 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, reg);
1045
1046 spin_unlock_irqrestore(&events_lock, flags);
1047
1048 /* copy the struct and modify the copy */
1049
1050 s->state = *state;
1051
1052 return 0;
1053 }
1054
1055 static int m8xx_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
1056 {
1057 int lsock = container_of(sock, struct socket_info, socket)->slot;
1058
1059 struct socket_info *s = &socket[lsock];
1060 struct pcmcia_win *w;
1061 unsigned int reg, winnr;
1062
1063 #define M8XX_SIZE (io->stop - io->start + 1)
1064 #define M8XX_BASE (PCMCIA_IO_WIN_BASE + io->start)
1065
1066 dprintk( "SetIOMap(%d, %d, %#2.2x, %d ns, "
1067 "%#4.4x-%#4.4x)\n", lsock, io->map, io->flags,
1068 io->speed, io->start, io->stop);
1069
1070 if ((io->map >= PCMCIA_IO_WIN_NO) || (io->start > 0xffff)
1071 || (io->stop > 0xffff) || (io->stop < io->start))
1072 return -EINVAL;
1073
1074 if((reg = m8xx_get_graycode(M8XX_SIZE)) == -1)
1075 return -EINVAL;
1076
1077 if(io->flags & MAP_ACTIVE) {
1078
1079 dprintk( "io->flags & MAP_ACTIVE\n");
1080
1081 winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO)
1082 + (lsock * PCMCIA_IO_WIN_NO) + io->map;
1083
1084 /* setup registers */
1085
1086 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1087 w += winnr;
1088
1089 out_be32(&w->or, 0); /* turn off window first */
1090 out_be32(&w->br, M8XX_BASE);
1091
1092 reg <<= 27;
1093 reg |= M8XX_PCMCIA_POR_IO |(lsock << 2);
1094
1095 reg |= m8xx_get_speed(io->speed, 1);
1096
1097 if(io->flags & MAP_WRPROT)
1098 reg |= M8XX_PCMCIA_POR_WRPROT;
1099
1100 if(io->flags & (MAP_16BIT | MAP_AUTOSZ))
1101 reg |= M8XX_PCMCIA_POR_16BIT;
1102
1103 if(io->flags & MAP_ACTIVE)
1104 reg |= M8XX_PCMCIA_POR_VALID;
1105
1106 out_be32(&w->or, reg);
1107
1108 dprintk("Socket %u: Mapped io window %u at %#8.8x, "
1109 "OR = %#8.8x.\n", lsock, io->map, w->br, w->or);
1110 } else {
1111 /* shutdown IO window */
1112 winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO)
1113 + (lsock * PCMCIA_IO_WIN_NO) + io->map;
1114
1115 /* setup registers */
1116
1117 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1118 w += winnr;
1119
1120 out_be32(&w->or, 0); /* turn off window */
1121 out_be32(&w->br, 0); /* turn off base address */
1122
1123 dprintk("Socket %u: Unmapped io window %u at %#8.8x, "
1124 "OR = %#8.8x.\n", lsock, io->map, w->br, w->or);
1125 }
1126
1127 /* copy the struct and modify the copy */
1128 s->io_win[io->map] = *io;
1129 s->io_win[io->map].flags &= (MAP_WRPROT
1130 | MAP_16BIT
1131 | MAP_ACTIVE);
1132 dprintk("SetIOMap exit\n");
1133
1134 return 0;
1135 }
1136
1137 static int m8xx_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
1138 {
1139 int lsock = container_of(sock, struct socket_info, socket)->slot;
1140 struct socket_info *s = &socket[lsock];
1141 struct pcmcia_win *w;
1142 struct pccard_mem_map *old;
1143 unsigned int reg, winnr;
1144
1145 dprintk( "SetMemMap(%d, %d, %#2.2x, %d ns, "
1146 "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags,
1147 mem->speed, mem->static_start, mem->card_start);
1148
1149 if ((mem->map >= PCMCIA_MEM_WIN_NO)
1150 // || ((mem->s) >= PCMCIA_MEM_WIN_SIZE)
1151 || (mem->card_start >= 0x04000000)
1152 || (mem->static_start & 0xfff) /* 4KByte resolution */
1153 || (mem->card_start & 0xfff))
1154 return -EINVAL;
1155
1156 if((reg = m8xx_get_graycode(PCMCIA_MEM_WIN_SIZE)) == -1) {
1157 printk( "Cannot set size to 0x%08x.\n", PCMCIA_MEM_WIN_SIZE);
1158 return -EINVAL;
1159 }
1160 reg <<= 27;
1161
1162 winnr = (lsock * PCMCIA_MEM_WIN_NO) + mem->map;
1163
1164 /* Setup the window in the pcmcia controller */
1165
1166 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1167 w += winnr;
1168
1169 reg |= lsock << 2;
1170
1171 reg |= m8xx_get_speed(mem->speed, 0);
1172
1173 if(mem->flags & MAP_ATTRIB)
1174 reg |= M8XX_PCMCIA_POR_ATTRMEM;
1175
1176 if(mem->flags & MAP_WRPROT)
1177 reg |= M8XX_PCMCIA_POR_WRPROT;
1178
1179 if(mem->flags & MAP_16BIT)
1180 reg |= M8XX_PCMCIA_POR_16BIT;
1181
1182 if(mem->flags & MAP_ACTIVE)
1183 reg |= M8XX_PCMCIA_POR_VALID;
1184
1185 out_be32(&w->or, reg);
1186
1187 dprintk("Socket %u: Mapped memory window %u at %#8.8x, "
1188 "OR = %#8.8x.\n", lsock, mem->map, w->br, w->or);
1189
1190 if(mem->flags & MAP_ACTIVE) {
1191 /* get the new base address */
1192 mem->static_start = PCMCIA_MEM_WIN_BASE +
1193 (PCMCIA_MEM_WIN_SIZE * winnr)
1194 + mem->card_start;
1195 }
1196
1197 dprintk("SetMemMap(%d, %d, %#2.2x, %d ns, "
1198 "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags,
1199 mem->speed, mem->static_start, mem->card_start);
1200
1201 /* copy the struct and modify the copy */
1202
1203 old = &s->mem_win[mem->map];
1204
1205 *old = *mem;
1206 old->flags &= (MAP_ATTRIB
1207 | MAP_WRPROT
1208 | MAP_16BIT
1209 | MAP_ACTIVE);
1210
1211 return 0;
1212 }
1213
1214 static int m8xx_sock_init(struct pcmcia_socket *sock)
1215 {
1216 int i;
1217 pccard_io_map io = { 0, 0, 0, 0, 1 };
1218 pccard_mem_map mem = { 0, 0, 0, 0, 0, 0 };
1219
1220 dprintk( "sock_init(%d)\n", s);
1221
1222 m8xx_set_socket(sock, &dead_socket);
1223 for (i = 0; i < PCMCIA_IO_WIN_NO; i++) {
1224 io.map = i;
1225 m8xx_set_io_map(sock, &io);
1226 }
1227 for (i = 0; i < PCMCIA_MEM_WIN_NO; i++) {
1228 mem.map = i;
1229 m8xx_set_mem_map(sock, &mem);
1230 }
1231
1232 return 0;
1233
1234 }
1235
1236 static int m8xx_suspend(struct pcmcia_socket *sock)
1237 {
1238 return m8xx_set_socket(sock, &dead_socket);
1239 }
1240
1241 static struct pccard_operations m8xx_services = {
1242 .init = m8xx_sock_init,
1243 .suspend = m8xx_suspend,
1244 .get_status = m8xx_get_status,
1245 .set_socket = m8xx_set_socket,
1246 .set_io_map = m8xx_set_io_map,
1247 .set_mem_map = m8xx_set_mem_map,
1248 };
1249
1250 static int __init m8xx_init(void)
1251 {
1252 struct pcmcia_win *w;
1253 unsigned int i,m;
1254
1255 pcmcia_info("%s\n", version);
1256
1257 if (driver_register(&m8xx_driver))
1258 return -1;
1259
1260 pcmcia_info(PCMCIA_BOARD_MSG " using " PCMCIA_SLOT_MSG
1261 " with IRQ %u.\n", pcmcia_schlvl);
1262
1263 /* Configure Status change interrupt */
1264
1265 if(request_irq(pcmcia_schlvl, m8xx_interrupt, 0,
1266 "m8xx_pcmcia", NULL)) {
1267 pcmcia_error("Cannot allocate IRQ %u for SCHLVL!\n",
1268 pcmcia_schlvl);
1269 return -1;
1270 }
1271
1272 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1273
1274 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr,
1275 M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1));
1276
1277 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per,
1278 in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
1279 ~(M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1)));
1280
1281 /* connect interrupt and disable CxOE */
1282
1283 out_be32(M8XX_PGCRX(0), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
1284 out_be32(M8XX_PGCRX(1), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
1285
1286 /* intialize the fixed memory windows */
1287
1288 for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
1289 for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
1290 out_be32(&w->br, PCMCIA_MEM_WIN_BASE +
1291 (PCMCIA_MEM_WIN_SIZE
1292 * (m + i * PCMCIA_MEM_WIN_NO)));
1293
1294 out_be32(&w->or, 0); /* set to not valid */
1295
1296 w++;
1297 }
1298 }
1299
1300 /* turn off voltage */
1301 voltage_set(0, 0, 0);
1302 voltage_set(1, 0, 0);
1303
1304 /* Enable external hardware */
1305 hardware_enable(0);
1306 hardware_enable(1);
1307
1308 platform_device_register(&m8xx_device);
1309
1310 for (i = 0 ; i < PCMCIA_SOCKETS_NO; i++) {
1311 socket[i].slot = i;
1312 socket[i].socket.owner = THIS_MODULE;
1313 socket[i].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN | SS_CAP_STATIC_MAP;
1314 socket[i].socket.irq_mask = 0x000;
1315 socket[i].socket.map_size = 0x1000;
1316 socket[i].socket.io_offset = 0;
1317 socket[i].socket.pci_irq = i ? 7 : 9;
1318 socket[i].socket.ops = &m8xx_services;
1319 socket[i].socket.resource_ops = &pccard_iodyn_ops;
1320 socket[i].socket.cb_dev = NULL;
1321 socket[i].socket.dev.dev = &m8xx_device.dev;
1322 }
1323
1324 for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
1325 pcmcia_register_socket(&socket[i].socket);
1326
1327 return 0;
1328 }
1329
1330 static void __exit m8xx_exit(void)
1331 {
1332 int i;
1333
1334 for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
1335 pcmcia_unregister_socket(&socket[i].socket);
1336
1337 m8xx_shutdown();
1338
1339 platform_device_unregister(&m8xx_device);
1340 driver_unregister(&m8xx_driver);
1341 }
1342
1343 module_init(m8xx_init);
1344 module_exit(m8xx_exit);
USB Experimental Work