Commit | Line | Data |
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66213b3c ML |
1 | /* |
2 | * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards. | |
3 | * | |
4 | * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com> | |
5 | * | |
6 | */ | |
7 | ||
8 | /* This is a fairly generic PCMCIA socket driver suitable for the | |
9 | * following Alchemy Development boards: | |
10 | * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200. | |
11 | * | |
12 | * The Db1000 is used as a reference: Per-socket card-, carddetect- and | |
13 | * statuschange IRQs connected to SoC GPIOs, control and status register | |
14 | * bits arranged in per-socket groups in an external PLD. All boards | |
15 | * listed here use this layout, including bit positions and meanings. | |
16 | * Of course there are exceptions in later boards: | |
17 | * | |
18 | * - Pb1100/Pb1500: single socket only; voltage key bits VS are | |
19 | * at STATUS[5:4] (instead of STATUS[1:0]). | |
20 | * - Au1200-based: additional card-eject irqs, irqs not gpios! | |
21 | */ | |
22 | ||
23 | #include <linux/delay.h> | |
24 | #include <linux/gpio.h> | |
25 | #include <linux/interrupt.h> | |
26 | #include <linux/pm.h> | |
27 | #include <linux/platform_device.h> | |
28 | #include <linux/resource.h> | |
5a0e3ad6 | 29 | #include <linux/slab.h> |
66213b3c ML |
30 | #include <linux/spinlock.h> |
31 | ||
32 | #include <pcmcia/cs_types.h> | |
33 | #include <pcmcia/ss.h> | |
34 | ||
35 | #include <asm/mach-au1x00/au1000.h> | |
36 | #include <asm/mach-db1x00/bcsr.h> | |
37 | ||
38 | #define MEM_MAP_SIZE 0x400000 | |
39 | #define IO_MAP_SIZE 0x1000 | |
40 | ||
41 | struct db1x_pcmcia_sock { | |
42 | struct pcmcia_socket socket; | |
43 | int nr; /* socket number */ | |
44 | void *virt_io; | |
45 | ||
11b897cf ML |
46 | phys_addr_t phys_io; |
47 | phys_addr_t phys_attr; | |
48 | phys_addr_t phys_mem; | |
66213b3c ML |
49 | |
50 | /* previous flags for set_socket() */ | |
51 | unsigned int old_flags; | |
52 | ||
53 | /* interrupt sources: linux irq numbers! */ | |
54 | int insert_irq; /* default carddetect irq */ | |
55 | int stschg_irq; /* card-status-change irq */ | |
56 | int card_irq; /* card irq */ | |
57 | int eject_irq; /* db1200/pb1200 have these */ | |
58 | ||
59 | #define BOARD_TYPE_DEFAULT 0 /* most boards */ | |
60 | #define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */ | |
61 | #define BOARD_TYPE_PB1100 2 /* VS bits slightly different */ | |
62 | int board_type; | |
63 | }; | |
64 | ||
65 | #define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket) | |
66 | ||
67 | /* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */ | |
68 | static int db1200_card_inserted(struct db1x_pcmcia_sock *sock) | |
69 | { | |
70 | unsigned short sigstat; | |
71 | ||
72 | sigstat = bcsr_read(BCSR_SIGSTAT); | |
73 | return sigstat & 1 << (8 + 2 * sock->nr); | |
74 | } | |
75 | ||
76 | /* carddetect gpio: low-active */ | |
77 | static int db1000_card_inserted(struct db1x_pcmcia_sock *sock) | |
78 | { | |
79 | return !gpio_get_value(irq_to_gpio(sock->insert_irq)); | |
80 | } | |
81 | ||
82 | static int db1x_card_inserted(struct db1x_pcmcia_sock *sock) | |
83 | { | |
84 | switch (sock->board_type) { | |
85 | case BOARD_TYPE_DB1200: | |
86 | return db1200_card_inserted(sock); | |
87 | default: | |
88 | return db1000_card_inserted(sock); | |
89 | } | |
90 | } | |
91 | ||
92 | /* STSCHG tends to bounce heavily when cards are inserted/ejected. | |
93 | * To avoid this, the interrupt is normally disabled and only enabled | |
94 | * after reset to a card has been de-asserted. | |
95 | */ | |
96 | static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en) | |
97 | { | |
98 | if (sock->stschg_irq != -1) { | |
99 | if (en) | |
100 | enable_irq(sock->stschg_irq); | |
101 | else | |
102 | disable_irq(sock->stschg_irq); | |
103 | } | |
104 | } | |
105 | ||
106 | static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data) | |
107 | { | |
108 | struct db1x_pcmcia_sock *sock = data; | |
109 | ||
110 | pcmcia_parse_events(&sock->socket, SS_DETECT); | |
111 | ||
112 | return IRQ_HANDLED; | |
113 | } | |
114 | ||
115 | static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data) | |
116 | { | |
117 | struct db1x_pcmcia_sock *sock = data; | |
118 | ||
119 | pcmcia_parse_events(&sock->socket, SS_STSCHG); | |
120 | ||
121 | return IRQ_HANDLED; | |
122 | } | |
123 | ||
124 | static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data) | |
125 | { | |
126 | struct db1x_pcmcia_sock *sock = data; | |
127 | ||
128 | /* Db/Pb1200 have separate per-socket insertion and ejection | |
129 | * interrupts which stay asserted as long as the card is | |
130 | * inserted/missing. The one which caused us to be called | |
131 | * needs to be disabled and the other one enabled. | |
132 | */ | |
133 | if (irq == sock->insert_irq) { | |
134 | disable_irq_nosync(sock->insert_irq); | |
135 | enable_irq(sock->eject_irq); | |
136 | } else { | |
137 | disable_irq_nosync(sock->eject_irq); | |
138 | enable_irq(sock->insert_irq); | |
139 | } | |
140 | ||
141 | pcmcia_parse_events(&sock->socket, SS_DETECT); | |
142 | ||
143 | return IRQ_HANDLED; | |
144 | } | |
145 | ||
146 | static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) | |
147 | { | |
148 | int ret; | |
149 | unsigned long flags; | |
150 | ||
151 | if (sock->stschg_irq != -1) { | |
152 | ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq, | |
153 | 0, "pcmcia_stschg", sock); | |
154 | if (ret) | |
155 | return ret; | |
156 | } | |
157 | ||
158 | /* Db/Pb1200 have separate per-socket insertion and ejection | |
159 | * interrupts, which should show edge behaviour but don't. | |
160 | * So interrupts are disabled until both insertion and | |
161 | * ejection handler have been registered and the currently | |
162 | * active one disabled. | |
163 | */ | |
164 | if (sock->board_type == BOARD_TYPE_DB1200) { | |
165 | local_irq_save(flags); | |
166 | ||
167 | ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq, | |
168 | IRQF_DISABLED, "pcmcia_insert", sock); | |
42d284b9 JL |
169 | if (ret) { |
170 | local_irq_restore(flags); | |
66213b3c | 171 | goto out1; |
42d284b9 | 172 | } |
66213b3c ML |
173 | |
174 | ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq, | |
175 | IRQF_DISABLED, "pcmcia_eject", sock); | |
176 | if (ret) { | |
177 | free_irq(sock->insert_irq, sock); | |
178 | local_irq_restore(flags); | |
179 | goto out1; | |
180 | } | |
181 | ||
182 | /* disable the currently active one */ | |
183 | if (db1200_card_inserted(sock)) | |
184 | disable_irq_nosync(sock->insert_irq); | |
185 | else | |
186 | disable_irq_nosync(sock->eject_irq); | |
187 | ||
188 | local_irq_restore(flags); | |
189 | } else { | |
190 | /* all other (older) Db1x00 boards use a GPIO to show | |
191 | * card detection status: use both-edge triggers. | |
192 | */ | |
193 | set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); | |
194 | ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq, | |
195 | 0, "pcmcia_carddetect", sock); | |
196 | ||
197 | if (ret) | |
198 | goto out1; | |
199 | } | |
200 | ||
201 | return 0; /* all done */ | |
202 | ||
203 | out1: | |
204 | if (sock->stschg_irq != -1) | |
205 | free_irq(sock->stschg_irq, sock); | |
206 | ||
207 | return ret; | |
208 | } | |
209 | ||
210 | static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock) | |
211 | { | |
212 | if (sock->stschg_irq != -1) | |
213 | free_irq(sock->stschg_irq, sock); | |
214 | ||
215 | free_irq(sock->insert_irq, sock); | |
216 | if (sock->eject_irq != -1) | |
217 | free_irq(sock->eject_irq, sock); | |
218 | } | |
219 | ||
220 | /* | |
221 | * configure a PCMCIA socket on the Db1x00 series of boards (and | |
222 | * compatibles). | |
223 | * | |
224 | * 2 external registers are involved: | |
225 | * pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id | |
226 | * pcmcia_control(offset 0x10): | |
227 | * bits[0:1] set vcc for card | |
228 | * bits[2:3] set vpp for card | |
229 | * bit 4: enable data buffers | |
230 | * bit 7: reset# for card | |
231 | * add 8 for second socket. | |
232 | */ | |
233 | static int db1x_pcmcia_configure(struct pcmcia_socket *skt, | |
234 | struct socket_state_t *state) | |
235 | { | |
236 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
237 | unsigned short cr_clr, cr_set; | |
238 | unsigned int changed; | |
239 | int v, p, ret; | |
240 | ||
241 | /* card voltage setup */ | |
242 | cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */ | |
243 | cr_set = 0; | |
244 | v = p = ret = 0; | |
245 | ||
246 | switch (state->Vcc) { | |
247 | case 50: | |
248 | ++v; | |
249 | case 33: | |
250 | ++v; | |
251 | case 0: | |
252 | break; | |
253 | default: | |
254 | printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n", | |
255 | sock->nr, state->Vcc); | |
256 | } | |
257 | ||
258 | switch (state->Vpp) { | |
259 | case 12: | |
260 | ++p; | |
261 | case 33: | |
262 | case 50: | |
263 | ++p; | |
264 | case 0: | |
265 | break; | |
266 | default: | |
267 | printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n", | |
268 | sock->nr, state->Vpp); | |
269 | } | |
270 | ||
271 | /* sanity check: Vpp must be 0, 12, or Vcc */ | |
272 | if (((state->Vcc == 33) && (state->Vpp == 50)) || | |
273 | ((state->Vcc == 50) && (state->Vpp == 33))) { | |
274 | printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n", | |
275 | sock->nr, state->Vcc, state->Vpp); | |
276 | v = p = 0; | |
277 | ret = -EINVAL; | |
278 | } | |
279 | ||
280 | /* create new voltage code */ | |
281 | cr_set |= ((v << 2) | p) << (sock->nr * 8); | |
282 | ||
283 | changed = state->flags ^ sock->old_flags; | |
284 | ||
285 | if (changed & SS_RESET) { | |
286 | if (state->flags & SS_RESET) { | |
287 | set_stschg(sock, 0); | |
288 | /* assert reset, disable io buffers */ | |
289 | cr_clr |= (1 << (7 + (sock->nr * 8))); | |
290 | cr_clr |= (1 << (4 + (sock->nr * 8))); | |
291 | } else { | |
292 | /* de-assert reset, enable io buffers */ | |
293 | cr_set |= 1 << (7 + (sock->nr * 8)); | |
294 | cr_set |= 1 << (4 + (sock->nr * 8)); | |
295 | } | |
296 | } | |
297 | ||
298 | /* update PCMCIA configuration */ | |
299 | bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set); | |
300 | ||
301 | sock->old_flags = state->flags; | |
302 | ||
303 | /* reset was taken away: give card time to initialize properly */ | |
304 | if ((changed & SS_RESET) && !(state->flags & SS_RESET)) { | |
305 | msleep(500); | |
306 | set_stschg(sock, 1); | |
307 | } | |
308 | ||
309 | return ret; | |
310 | } | |
311 | ||
312 | /* VCC bits at [3:2]/[11:10] */ | |
313 | #define GET_VCC(cr, socknr) \ | |
314 | ((((cr) >> 2) >> ((socknr) * 8)) & 3) | |
315 | ||
316 | /* VS bits at [0:1]/[3:2] */ | |
317 | #define GET_VS(sr, socknr) \ | |
318 | (((sr) >> (2 * (socknr))) & 3) | |
319 | ||
320 | /* reset bits at [7]/[15] */ | |
321 | #define GET_RESET(cr, socknr) \ | |
322 | ((cr) & (1 << (7 + (8 * (socknr))))) | |
323 | ||
324 | static int db1x_pcmcia_get_status(struct pcmcia_socket *skt, | |
325 | unsigned int *value) | |
326 | { | |
327 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
328 | unsigned short cr, sr; | |
329 | unsigned int status; | |
330 | ||
331 | status = db1x_card_inserted(sock) ? SS_DETECT : 0; | |
332 | ||
333 | cr = bcsr_read(BCSR_PCMCIA); | |
334 | sr = bcsr_read(BCSR_STATUS); | |
335 | ||
336 | /* PB1100/PB1500: voltage key bits are at [5:4] */ | |
337 | if (sock->board_type == BOARD_TYPE_PB1100) | |
338 | sr >>= 4; | |
339 | ||
340 | /* determine card type */ | |
341 | switch (GET_VS(sr, sock->nr)) { | |
342 | case 0: | |
343 | case 2: | |
344 | status |= SS_3VCARD; /* 3V card */ | |
345 | case 3: | |
346 | break; /* 5V card: set nothing */ | |
347 | default: | |
348 | status |= SS_XVCARD; /* treated as unsupported in core */ | |
349 | } | |
350 | ||
351 | /* if Vcc is not zero, we have applied power to a card */ | |
352 | status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0; | |
353 | ||
354 | /* reset de-asserted? then we're ready */ | |
355 | status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET; | |
356 | ||
357 | *value = status; | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | static int db1x_pcmcia_sock_init(struct pcmcia_socket *skt) | |
363 | { | |
364 | return 0; | |
365 | } | |
366 | ||
367 | static int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt) | |
368 | { | |
369 | return 0; | |
370 | } | |
371 | ||
372 | static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt, | |
373 | struct pccard_io_map *map) | |
374 | { | |
375 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
376 | ||
377 | map->start = (u32)sock->virt_io; | |
378 | map->stop = map->start + IO_MAP_SIZE; | |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
383 | static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt, | |
384 | struct pccard_mem_map *map) | |
385 | { | |
386 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
387 | ||
388 | if (map->flags & MAP_ATTRIB) | |
389 | map->static_start = sock->phys_attr + map->card_start; | |
390 | else | |
391 | map->static_start = sock->phys_mem + map->card_start; | |
392 | ||
393 | return 0; | |
394 | } | |
395 | ||
396 | static struct pccard_operations db1x_pcmcia_operations = { | |
397 | .init = db1x_pcmcia_sock_init, | |
398 | .suspend = db1x_pcmcia_sock_suspend, | |
399 | .get_status = db1x_pcmcia_get_status, | |
400 | .set_socket = db1x_pcmcia_configure, | |
401 | .set_io_map = au1x00_pcmcia_set_io_map, | |
402 | .set_mem_map = au1x00_pcmcia_set_mem_map, | |
403 | }; | |
404 | ||
405 | static int __devinit db1x_pcmcia_socket_probe(struct platform_device *pdev) | |
406 | { | |
407 | struct db1x_pcmcia_sock *sock; | |
408 | struct resource *r; | |
66213b3c ML |
409 | int ret, bid; |
410 | ||
411 | sock = kzalloc(sizeof(struct db1x_pcmcia_sock), GFP_KERNEL); | |
412 | if (!sock) | |
413 | return -ENOMEM; | |
414 | ||
415 | sock->nr = pdev->id; | |
416 | ||
417 | bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); | |
418 | switch (bid) { | |
419 | case BCSR_WHOAMI_PB1500: | |
420 | case BCSR_WHOAMI_PB1500R2: | |
421 | case BCSR_WHOAMI_PB1100: | |
422 | sock->board_type = BOARD_TYPE_PB1100; | |
423 | break; | |
424 | case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR: | |
425 | sock->board_type = BOARD_TYPE_DEFAULT; | |
426 | break; | |
427 | case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200: | |
428 | sock->board_type = BOARD_TYPE_DB1200; | |
429 | break; | |
430 | default: | |
431 | printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid); | |
432 | ret = -ENODEV; | |
433 | goto out0; | |
434 | }; | |
435 | ||
436 | /* | |
437 | * gather resources necessary and optional nice-to-haves to | |
438 | * operate a socket: | |
439 | * This includes IRQs for Carddetection/ejection, the card | |
440 | * itself and optional status change detection. | |
441 | * Also, the memory areas covered by a socket. For these | |
f25e188c | 442 | * we require the real 36bit addresses (see the au1000.h |
66213b3c ML |
443 | * header for more information). |
444 | */ | |
445 | ||
446 | /* card: irq assigned to the card itself. */ | |
447 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card"); | |
448 | sock->card_irq = r ? r->start : 0; | |
449 | ||
450 | /* insert: irq which triggers on card insertion/ejection */ | |
451 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert"); | |
452 | sock->insert_irq = r ? r->start : -1; | |
453 | ||
454 | /* stschg: irq which trigger on card status change (optional) */ | |
455 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg"); | |
456 | sock->stschg_irq = r ? r->start : -1; | |
457 | ||
458 | /* eject: irq which triggers on ejection (DB1200/PB1200 only) */ | |
459 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject"); | |
460 | sock->eject_irq = r ? r->start : -1; | |
461 | ||
462 | ret = -ENODEV; | |
463 | ||
f25e188c | 464 | /* 36bit PCMCIA Attribute area address */ |
11b897cf | 465 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr"); |
66213b3c ML |
466 | if (!r) { |
467 | printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n", | |
468 | sock->nr); | |
469 | goto out0; | |
470 | } | |
471 | sock->phys_attr = r->start; | |
472 | ||
f25e188c | 473 | /* 36bit PCMCIA Memory area address */ |
11b897cf | 474 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem"); |
66213b3c ML |
475 | if (!r) { |
476 | printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n", | |
477 | sock->nr); | |
478 | goto out0; | |
479 | } | |
480 | sock->phys_mem = r->start; | |
481 | ||
f25e188c | 482 | /* 36bit PCMCIA IO area address */ |
11b897cf | 483 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io"); |
66213b3c ML |
484 | if (!r) { |
485 | printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n", | |
486 | sock->nr); | |
487 | goto out0; | |
488 | } | |
489 | sock->phys_io = r->start; | |
490 | ||
66213b3c ML |
491 | /* |
492 | * PCMCIA client drivers use the inb/outb macros to access | |
493 | * the IO registers. Since mips_io_port_base is added | |
494 | * to the access address of the mips implementation of | |
495 | * inb/outb, we need to subtract it here because we want | |
496 | * to access the I/O or MEM address directly, without | |
497 | * going through this "mips_io_port_base" mechanism. | |
498 | */ | |
11b897cf | 499 | sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) - |
66213b3c ML |
500 | mips_io_port_base); |
501 | ||
502 | if (!sock->virt_io) { | |
503 | printk(KERN_ERR "pcmcia%d: cannot remap IO area\n", | |
504 | sock->nr); | |
505 | ret = -ENOMEM; | |
506 | goto out0; | |
507 | } | |
508 | ||
509 | sock->socket.ops = &db1x_pcmcia_operations; | |
510 | sock->socket.owner = THIS_MODULE; | |
511 | sock->socket.pci_irq = sock->card_irq; | |
512 | sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD; | |
513 | sock->socket.map_size = MEM_MAP_SIZE; | |
514 | sock->socket.io_offset = (unsigned long)sock->virt_io; | |
515 | sock->socket.dev.parent = &pdev->dev; | |
516 | sock->socket.resource_ops = &pccard_static_ops; | |
517 | ||
518 | platform_set_drvdata(pdev, sock); | |
519 | ||
520 | ret = db1x_pcmcia_setup_irqs(sock); | |
521 | if (ret) { | |
522 | printk(KERN_ERR "pcmcia%d cannot setup interrupts\n", | |
523 | sock->nr); | |
524 | goto out1; | |
525 | } | |
526 | ||
527 | set_stschg(sock, 0); | |
528 | ||
529 | ret = pcmcia_register_socket(&sock->socket); | |
530 | if (ret) { | |
531 | printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr); | |
532 | goto out2; | |
533 | } | |
534 | ||
11b897cf ML |
535 | printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %09llx" |
536 | "(%p) %09llx %09llx card/insert/stschg/eject irqs @ %d " | |
66213b3c ML |
537 | "%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io, |
538 | sock->phys_attr, sock->phys_mem, sock->card_irq, | |
539 | sock->insert_irq, sock->stschg_irq, sock->eject_irq); | |
540 | ||
541 | return 0; | |
542 | ||
543 | out2: | |
544 | db1x_pcmcia_free_irqs(sock); | |
545 | out1: | |
546 | iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); | |
547 | out0: | |
548 | kfree(sock); | |
549 | return ret; | |
550 | } | |
551 | ||
552 | static int __devexit db1x_pcmcia_socket_remove(struct platform_device *pdev) | |
553 | { | |
554 | struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev); | |
555 | ||
556 | db1x_pcmcia_free_irqs(sock); | |
557 | pcmcia_unregister_socket(&sock->socket); | |
558 | iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); | |
559 | kfree(sock); | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
66213b3c ML |
564 | static struct platform_driver db1x_pcmcia_socket_driver = { |
565 | .driver = { | |
566 | .name = "db1xxx_pcmcia", | |
567 | .owner = THIS_MODULE, | |
66213b3c ML |
568 | }, |
569 | .probe = db1x_pcmcia_socket_probe, | |
570 | .remove = __devexit_p(db1x_pcmcia_socket_remove), | |
571 | }; | |
572 | ||
573 | int __init db1x_pcmcia_socket_load(void) | |
574 | { | |
575 | return platform_driver_register(&db1x_pcmcia_socket_driver); | |
576 | } | |
577 | ||
578 | void __exit db1x_pcmcia_socket_unload(void) | |
579 | { | |
580 | platform_driver_unregister(&db1x_pcmcia_socket_driver); | |
581 | } | |
582 | ||
583 | module_init(db1x_pcmcia_socket_load); | |
584 | module_exit(db1x_pcmcia_socket_unload); | |
585 | ||
586 | MODULE_LICENSE("GPL"); | |
587 | MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards"); | |
588 | MODULE_AUTHOR("Manuel Lauss"); |