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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
66213b3c ML |
2 | /* |
3 | * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards. | |
4 | * | |
5 | * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com> | |
6 | * | |
7 | */ | |
8 | ||
9 | /* This is a fairly generic PCMCIA socket driver suitable for the | |
10 | * following Alchemy Development boards: | |
64cd04d0 | 11 | * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200, Db1300 |
66213b3c ML |
12 | * |
13 | * The Db1000 is used as a reference: Per-socket card-, carddetect- and | |
14 | * statuschange IRQs connected to SoC GPIOs, control and status register | |
15 | * bits arranged in per-socket groups in an external PLD. All boards | |
16 | * listed here use this layout, including bit positions and meanings. | |
17 | * Of course there are exceptions in later boards: | |
18 | * | |
19 | * - Pb1100/Pb1500: single socket only; voltage key bits VS are | |
20 | * at STATUS[5:4] (instead of STATUS[1:0]). | |
21 | * - Au1200-based: additional card-eject irqs, irqs not gpios! | |
64cd04d0 | 22 | * - Db1300: Db1200-like, no pwr ctrl, single socket (#1). |
66213b3c ML |
23 | */ |
24 | ||
25 | #include <linux/delay.h> | |
26 | #include <linux/gpio.h> | |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/pm.h> | |
3bf8d64d | 29 | #include <linux/module.h> |
66213b3c ML |
30 | #include <linux/platform_device.h> |
31 | #include <linux/resource.h> | |
5a0e3ad6 | 32 | #include <linux/slab.h> |
66213b3c ML |
33 | #include <linux/spinlock.h> |
34 | ||
66213b3c ML |
35 | #include <pcmcia/ss.h> |
36 | ||
37 | #include <asm/mach-au1x00/au1000.h> | |
38 | #include <asm/mach-db1x00/bcsr.h> | |
39 | ||
40 | #define MEM_MAP_SIZE 0x400000 | |
41 | #define IO_MAP_SIZE 0x1000 | |
42 | ||
43 | struct db1x_pcmcia_sock { | |
44 | struct pcmcia_socket socket; | |
45 | int nr; /* socket number */ | |
46 | void *virt_io; | |
47 | ||
11b897cf ML |
48 | phys_addr_t phys_io; |
49 | phys_addr_t phys_attr; | |
50 | phys_addr_t phys_mem; | |
66213b3c ML |
51 | |
52 | /* previous flags for set_socket() */ | |
53 | unsigned int old_flags; | |
54 | ||
55 | /* interrupt sources: linux irq numbers! */ | |
56 | int insert_irq; /* default carddetect irq */ | |
57 | int stschg_irq; /* card-status-change irq */ | |
58 | int card_irq; /* card irq */ | |
59 | int eject_irq; /* db1200/pb1200 have these */ | |
e34b6fcf | 60 | int insert_gpio; /* db1000 carddetect gpio */ |
66213b3c ML |
61 | |
62 | #define BOARD_TYPE_DEFAULT 0 /* most boards */ | |
63 | #define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */ | |
64 | #define BOARD_TYPE_PB1100 2 /* VS bits slightly different */ | |
64cd04d0 | 65 | #define BOARD_TYPE_DB1300 3 /* no power control */ |
66213b3c ML |
66 | int board_type; |
67 | }; | |
68 | ||
69 | #define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket) | |
70 | ||
64cd04d0 ML |
71 | static int db1300_card_inserted(struct db1x_pcmcia_sock *sock) |
72 | { | |
73 | return bcsr_read(BCSR_SIGSTAT) & (1 << 8); | |
74 | } | |
75 | ||
66213b3c ML |
76 | /* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */ |
77 | static int db1200_card_inserted(struct db1x_pcmcia_sock *sock) | |
78 | { | |
79 | unsigned short sigstat; | |
80 | ||
81 | sigstat = bcsr_read(BCSR_SIGSTAT); | |
82 | return sigstat & 1 << (8 + 2 * sock->nr); | |
83 | } | |
84 | ||
85 | /* carddetect gpio: low-active */ | |
86 | static int db1000_card_inserted(struct db1x_pcmcia_sock *sock) | |
87 | { | |
e34b6fcf | 88 | return !gpio_get_value(sock->insert_gpio); |
66213b3c ML |
89 | } |
90 | ||
91 | static int db1x_card_inserted(struct db1x_pcmcia_sock *sock) | |
92 | { | |
93 | switch (sock->board_type) { | |
94 | case BOARD_TYPE_DB1200: | |
95 | return db1200_card_inserted(sock); | |
64cd04d0 ML |
96 | case BOARD_TYPE_DB1300: |
97 | return db1300_card_inserted(sock); | |
66213b3c ML |
98 | default: |
99 | return db1000_card_inserted(sock); | |
100 | } | |
101 | } | |
102 | ||
103 | /* STSCHG tends to bounce heavily when cards are inserted/ejected. | |
104 | * To avoid this, the interrupt is normally disabled and only enabled | |
105 | * after reset to a card has been de-asserted. | |
106 | */ | |
107 | static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en) | |
108 | { | |
109 | if (sock->stschg_irq != -1) { | |
110 | if (en) | |
111 | enable_irq(sock->stschg_irq); | |
112 | else | |
113 | disable_irq(sock->stschg_irq); | |
114 | } | |
115 | } | |
116 | ||
117 | static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data) | |
118 | { | |
119 | struct db1x_pcmcia_sock *sock = data; | |
120 | ||
121 | pcmcia_parse_events(&sock->socket, SS_DETECT); | |
122 | ||
123 | return IRQ_HANDLED; | |
124 | } | |
125 | ||
126 | static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data) | |
127 | { | |
128 | struct db1x_pcmcia_sock *sock = data; | |
129 | ||
130 | pcmcia_parse_events(&sock->socket, SS_STSCHG); | |
131 | ||
132 | return IRQ_HANDLED; | |
133 | } | |
134 | ||
cc10815e ML |
135 | /* Db/Pb1200 have separate per-socket insertion and ejection |
136 | * interrupts which stay asserted as long as the card is | |
137 | * inserted/missing. The one which caused us to be called | |
138 | * needs to be disabled and the other one enabled. | |
139 | */ | |
66213b3c | 140 | static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data) |
cc10815e ML |
141 | { |
142 | disable_irq_nosync(irq); | |
143 | return IRQ_WAKE_THREAD; | |
144 | } | |
145 | ||
146 | static irqreturn_t db1200_pcmcia_cdirq_fn(int irq, void *data) | |
66213b3c ML |
147 | { |
148 | struct db1x_pcmcia_sock *sock = data; | |
149 | ||
cc10815e ML |
150 | /* Wait a bit for the signals to stop bouncing. */ |
151 | msleep(100); | |
152 | if (irq == sock->insert_irq) | |
66213b3c | 153 | enable_irq(sock->eject_irq); |
cc10815e | 154 | else |
66213b3c | 155 | enable_irq(sock->insert_irq); |
66213b3c ML |
156 | |
157 | pcmcia_parse_events(&sock->socket, SS_DETECT); | |
158 | ||
159 | return IRQ_HANDLED; | |
160 | } | |
161 | ||
162 | static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) | |
163 | { | |
164 | int ret; | |
66213b3c ML |
165 | |
166 | if (sock->stschg_irq != -1) { | |
167 | ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq, | |
168 | 0, "pcmcia_stschg", sock); | |
169 | if (ret) | |
170 | return ret; | |
171 | } | |
172 | ||
173 | /* Db/Pb1200 have separate per-socket insertion and ejection | |
174 | * interrupts, which should show edge behaviour but don't. | |
175 | * So interrupts are disabled until both insertion and | |
176 | * ejection handler have been registered and the currently | |
177 | * active one disabled. | |
178 | */ | |
64cd04d0 ML |
179 | if ((sock->board_type == BOARD_TYPE_DB1200) || |
180 | (sock->board_type == BOARD_TYPE_DB1300)) { | |
cc10815e ML |
181 | ret = request_threaded_irq(sock->insert_irq, db1200_pcmcia_cdirq, |
182 | db1200_pcmcia_cdirq_fn, 0, "pcmcia_insert", sock); | |
0000a539 | 183 | if (ret) |
66213b3c ML |
184 | goto out1; |
185 | ||
cc10815e ML |
186 | ret = request_threaded_irq(sock->eject_irq, db1200_pcmcia_cdirq, |
187 | db1200_pcmcia_cdirq_fn, 0, "pcmcia_eject", sock); | |
66213b3c ML |
188 | if (ret) { |
189 | free_irq(sock->insert_irq, sock); | |
66213b3c ML |
190 | goto out1; |
191 | } | |
192 | ||
0000a539 | 193 | /* enable the currently silent one */ |
64cd04d0 | 194 | if (db1x_card_inserted(sock)) |
0000a539 | 195 | enable_irq(sock->eject_irq); |
66213b3c | 196 | else |
0000a539 | 197 | enable_irq(sock->insert_irq); |
66213b3c ML |
198 | } else { |
199 | /* all other (older) Db1x00 boards use a GPIO to show | |
200 | * card detection status: use both-edge triggers. | |
201 | */ | |
dced35ae | 202 | irq_set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); |
66213b3c ML |
203 | ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq, |
204 | 0, "pcmcia_carddetect", sock); | |
205 | ||
206 | if (ret) | |
207 | goto out1; | |
208 | } | |
209 | ||
210 | return 0; /* all done */ | |
211 | ||
212 | out1: | |
213 | if (sock->stschg_irq != -1) | |
214 | free_irq(sock->stschg_irq, sock); | |
215 | ||
216 | return ret; | |
217 | } | |
218 | ||
219 | static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock) | |
220 | { | |
221 | if (sock->stschg_irq != -1) | |
222 | free_irq(sock->stschg_irq, sock); | |
223 | ||
224 | free_irq(sock->insert_irq, sock); | |
225 | if (sock->eject_irq != -1) | |
226 | free_irq(sock->eject_irq, sock); | |
227 | } | |
228 | ||
229 | /* | |
230 | * configure a PCMCIA socket on the Db1x00 series of boards (and | |
231 | * compatibles). | |
232 | * | |
233 | * 2 external registers are involved: | |
234 | * pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id | |
235 | * pcmcia_control(offset 0x10): | |
236 | * bits[0:1] set vcc for card | |
237 | * bits[2:3] set vpp for card | |
238 | * bit 4: enable data buffers | |
239 | * bit 7: reset# for card | |
240 | * add 8 for second socket. | |
241 | */ | |
242 | static int db1x_pcmcia_configure(struct pcmcia_socket *skt, | |
243 | struct socket_state_t *state) | |
244 | { | |
245 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
246 | unsigned short cr_clr, cr_set; | |
247 | unsigned int changed; | |
248 | int v, p, ret; | |
249 | ||
250 | /* card voltage setup */ | |
251 | cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */ | |
252 | cr_set = 0; | |
253 | v = p = ret = 0; | |
254 | ||
255 | switch (state->Vcc) { | |
256 | case 50: | |
257 | ++v; | |
258 | case 33: | |
259 | ++v; | |
260 | case 0: | |
261 | break; | |
262 | default: | |
263 | printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n", | |
264 | sock->nr, state->Vcc); | |
265 | } | |
266 | ||
267 | switch (state->Vpp) { | |
268 | case 12: | |
269 | ++p; | |
270 | case 33: | |
271 | case 50: | |
272 | ++p; | |
273 | case 0: | |
274 | break; | |
275 | default: | |
276 | printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n", | |
277 | sock->nr, state->Vpp); | |
278 | } | |
279 | ||
280 | /* sanity check: Vpp must be 0, 12, or Vcc */ | |
281 | if (((state->Vcc == 33) && (state->Vpp == 50)) || | |
282 | ((state->Vcc == 50) && (state->Vpp == 33))) { | |
283 | printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n", | |
284 | sock->nr, state->Vcc, state->Vpp); | |
285 | v = p = 0; | |
286 | ret = -EINVAL; | |
287 | } | |
288 | ||
289 | /* create new voltage code */ | |
64cd04d0 ML |
290 | if (sock->board_type != BOARD_TYPE_DB1300) |
291 | cr_set |= ((v << 2) | p) << (sock->nr * 8); | |
66213b3c ML |
292 | |
293 | changed = state->flags ^ sock->old_flags; | |
294 | ||
295 | if (changed & SS_RESET) { | |
296 | if (state->flags & SS_RESET) { | |
297 | set_stschg(sock, 0); | |
298 | /* assert reset, disable io buffers */ | |
299 | cr_clr |= (1 << (7 + (sock->nr * 8))); | |
300 | cr_clr |= (1 << (4 + (sock->nr * 8))); | |
301 | } else { | |
302 | /* de-assert reset, enable io buffers */ | |
303 | cr_set |= 1 << (7 + (sock->nr * 8)); | |
304 | cr_set |= 1 << (4 + (sock->nr * 8)); | |
305 | } | |
306 | } | |
307 | ||
308 | /* update PCMCIA configuration */ | |
309 | bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set); | |
310 | ||
311 | sock->old_flags = state->flags; | |
312 | ||
313 | /* reset was taken away: give card time to initialize properly */ | |
314 | if ((changed & SS_RESET) && !(state->flags & SS_RESET)) { | |
315 | msleep(500); | |
316 | set_stschg(sock, 1); | |
317 | } | |
318 | ||
319 | return ret; | |
320 | } | |
321 | ||
322 | /* VCC bits at [3:2]/[11:10] */ | |
323 | #define GET_VCC(cr, socknr) \ | |
324 | ((((cr) >> 2) >> ((socknr) * 8)) & 3) | |
325 | ||
326 | /* VS bits at [0:1]/[3:2] */ | |
327 | #define GET_VS(sr, socknr) \ | |
328 | (((sr) >> (2 * (socknr))) & 3) | |
329 | ||
330 | /* reset bits at [7]/[15] */ | |
331 | #define GET_RESET(cr, socknr) \ | |
332 | ((cr) & (1 << (7 + (8 * (socknr))))) | |
333 | ||
334 | static int db1x_pcmcia_get_status(struct pcmcia_socket *skt, | |
335 | unsigned int *value) | |
336 | { | |
337 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
338 | unsigned short cr, sr; | |
339 | unsigned int status; | |
340 | ||
341 | status = db1x_card_inserted(sock) ? SS_DETECT : 0; | |
342 | ||
343 | cr = bcsr_read(BCSR_PCMCIA); | |
344 | sr = bcsr_read(BCSR_STATUS); | |
345 | ||
346 | /* PB1100/PB1500: voltage key bits are at [5:4] */ | |
347 | if (sock->board_type == BOARD_TYPE_PB1100) | |
348 | sr >>= 4; | |
349 | ||
350 | /* determine card type */ | |
351 | switch (GET_VS(sr, sock->nr)) { | |
352 | case 0: | |
353 | case 2: | |
354 | status |= SS_3VCARD; /* 3V card */ | |
355 | case 3: | |
356 | break; /* 5V card: set nothing */ | |
357 | default: | |
358 | status |= SS_XVCARD; /* treated as unsupported in core */ | |
359 | } | |
360 | ||
361 | /* if Vcc is not zero, we have applied power to a card */ | |
362 | status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0; | |
363 | ||
64cd04d0 ML |
364 | /* DB1300: power always on, but don't tell when no card present */ |
365 | if ((sock->board_type == BOARD_TYPE_DB1300) && (status & SS_DETECT)) | |
366 | status = SS_POWERON | SS_3VCARD | SS_DETECT; | |
367 | ||
66213b3c ML |
368 | /* reset de-asserted? then we're ready */ |
369 | status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET; | |
370 | ||
371 | *value = status; | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | static int db1x_pcmcia_sock_init(struct pcmcia_socket *skt) | |
377 | { | |
378 | return 0; | |
379 | } | |
380 | ||
381 | static int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt) | |
382 | { | |
383 | return 0; | |
384 | } | |
385 | ||
386 | static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt, | |
387 | struct pccard_io_map *map) | |
388 | { | |
389 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
390 | ||
391 | map->start = (u32)sock->virt_io; | |
392 | map->stop = map->start + IO_MAP_SIZE; | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
397 | static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt, | |
398 | struct pccard_mem_map *map) | |
399 | { | |
400 | struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); | |
401 | ||
402 | if (map->flags & MAP_ATTRIB) | |
403 | map->static_start = sock->phys_attr + map->card_start; | |
404 | else | |
405 | map->static_start = sock->phys_mem + map->card_start; | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | static struct pccard_operations db1x_pcmcia_operations = { | |
411 | .init = db1x_pcmcia_sock_init, | |
412 | .suspend = db1x_pcmcia_sock_suspend, | |
413 | .get_status = db1x_pcmcia_get_status, | |
414 | .set_socket = db1x_pcmcia_configure, | |
415 | .set_io_map = au1x00_pcmcia_set_io_map, | |
416 | .set_mem_map = au1x00_pcmcia_set_mem_map, | |
417 | }; | |
418 | ||
34cdf25a | 419 | static int db1x_pcmcia_socket_probe(struct platform_device *pdev) |
66213b3c ML |
420 | { |
421 | struct db1x_pcmcia_sock *sock; | |
422 | struct resource *r; | |
66213b3c ML |
423 | int ret, bid; |
424 | ||
425 | sock = kzalloc(sizeof(struct db1x_pcmcia_sock), GFP_KERNEL); | |
426 | if (!sock) | |
427 | return -ENOMEM; | |
428 | ||
429 | sock->nr = pdev->id; | |
430 | ||
431 | bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); | |
432 | switch (bid) { | |
433 | case BCSR_WHOAMI_PB1500: | |
434 | case BCSR_WHOAMI_PB1500R2: | |
435 | case BCSR_WHOAMI_PB1100: | |
436 | sock->board_type = BOARD_TYPE_PB1100; | |
437 | break; | |
438 | case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR: | |
439 | sock->board_type = BOARD_TYPE_DEFAULT; | |
440 | break; | |
441 | case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200: | |
442 | sock->board_type = BOARD_TYPE_DB1200; | |
443 | break; | |
64cd04d0 ML |
444 | case BCSR_WHOAMI_DB1300: |
445 | sock->board_type = BOARD_TYPE_DB1300; | |
446 | break; | |
66213b3c ML |
447 | default: |
448 | printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid); | |
449 | ret = -ENODEV; | |
450 | goto out0; | |
451 | }; | |
452 | ||
453 | /* | |
454 | * gather resources necessary and optional nice-to-haves to | |
455 | * operate a socket: | |
456 | * This includes IRQs for Carddetection/ejection, the card | |
457 | * itself and optional status change detection. | |
458 | * Also, the memory areas covered by a socket. For these | |
f25e188c | 459 | * we require the real 36bit addresses (see the au1000.h |
66213b3c ML |
460 | * header for more information). |
461 | */ | |
462 | ||
463 | /* card: irq assigned to the card itself. */ | |
464 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card"); | |
465 | sock->card_irq = r ? r->start : 0; | |
466 | ||
e34b6fcf ML |
467 | /* insert: irq which triggers on card insertion/ejection |
468 | * BIG FAT NOTE: on DB1000/1100/1500/1550 we pass a GPIO here! | |
469 | */ | |
66213b3c ML |
470 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert"); |
471 | sock->insert_irq = r ? r->start : -1; | |
e34b6fcf ML |
472 | if (sock->board_type == BOARD_TYPE_DEFAULT) { |
473 | sock->insert_gpio = r ? r->start : -1; | |
474 | sock->insert_irq = r ? gpio_to_irq(r->start) : -1; | |
475 | } | |
66213b3c ML |
476 | |
477 | /* stschg: irq which trigger on card status change (optional) */ | |
478 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg"); | |
479 | sock->stschg_irq = r ? r->start : -1; | |
480 | ||
481 | /* eject: irq which triggers on ejection (DB1200/PB1200 only) */ | |
482 | r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject"); | |
483 | sock->eject_irq = r ? r->start : -1; | |
484 | ||
485 | ret = -ENODEV; | |
486 | ||
f25e188c | 487 | /* 36bit PCMCIA Attribute area address */ |
11b897cf | 488 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr"); |
66213b3c ML |
489 | if (!r) { |
490 | printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n", | |
491 | sock->nr); | |
492 | goto out0; | |
493 | } | |
494 | sock->phys_attr = r->start; | |
495 | ||
f25e188c | 496 | /* 36bit PCMCIA Memory area address */ |
11b897cf | 497 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem"); |
66213b3c ML |
498 | if (!r) { |
499 | printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n", | |
500 | sock->nr); | |
501 | goto out0; | |
502 | } | |
503 | sock->phys_mem = r->start; | |
504 | ||
f25e188c | 505 | /* 36bit PCMCIA IO area address */ |
11b897cf | 506 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io"); |
66213b3c ML |
507 | if (!r) { |
508 | printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n", | |
509 | sock->nr); | |
510 | goto out0; | |
511 | } | |
512 | sock->phys_io = r->start; | |
513 | ||
66213b3c ML |
514 | /* |
515 | * PCMCIA client drivers use the inb/outb macros to access | |
516 | * the IO registers. Since mips_io_port_base is added | |
517 | * to the access address of the mips implementation of | |
518 | * inb/outb, we need to subtract it here because we want | |
519 | * to access the I/O or MEM address directly, without | |
520 | * going through this "mips_io_port_base" mechanism. | |
521 | */ | |
11b897cf | 522 | sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) - |
66213b3c ML |
523 | mips_io_port_base); |
524 | ||
525 | if (!sock->virt_io) { | |
526 | printk(KERN_ERR "pcmcia%d: cannot remap IO area\n", | |
527 | sock->nr); | |
528 | ret = -ENOMEM; | |
529 | goto out0; | |
530 | } | |
531 | ||
532 | sock->socket.ops = &db1x_pcmcia_operations; | |
533 | sock->socket.owner = THIS_MODULE; | |
534 | sock->socket.pci_irq = sock->card_irq; | |
535 | sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD; | |
536 | sock->socket.map_size = MEM_MAP_SIZE; | |
537 | sock->socket.io_offset = (unsigned long)sock->virt_io; | |
538 | sock->socket.dev.parent = &pdev->dev; | |
539 | sock->socket.resource_ops = &pccard_static_ops; | |
540 | ||
541 | platform_set_drvdata(pdev, sock); | |
542 | ||
543 | ret = db1x_pcmcia_setup_irqs(sock); | |
544 | if (ret) { | |
545 | printk(KERN_ERR "pcmcia%d cannot setup interrupts\n", | |
546 | sock->nr); | |
547 | goto out1; | |
548 | } | |
549 | ||
550 | set_stschg(sock, 0); | |
551 | ||
552 | ret = pcmcia_register_socket(&sock->socket); | |
553 | if (ret) { | |
554 | printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr); | |
555 | goto out2; | |
556 | } | |
557 | ||
11b897cf ML |
558 | printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %09llx" |
559 | "(%p) %09llx %09llx card/insert/stschg/eject irqs @ %d " | |
66213b3c ML |
560 | "%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io, |
561 | sock->phys_attr, sock->phys_mem, sock->card_irq, | |
562 | sock->insert_irq, sock->stschg_irq, sock->eject_irq); | |
563 | ||
564 | return 0; | |
565 | ||
566 | out2: | |
567 | db1x_pcmcia_free_irqs(sock); | |
568 | out1: | |
569 | iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); | |
570 | out0: | |
571 | kfree(sock); | |
572 | return ret; | |
573 | } | |
574 | ||
e765a02c | 575 | static int db1x_pcmcia_socket_remove(struct platform_device *pdev) |
66213b3c ML |
576 | { |
577 | struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev); | |
578 | ||
579 | db1x_pcmcia_free_irqs(sock); | |
580 | pcmcia_unregister_socket(&sock->socket); | |
581 | iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); | |
582 | kfree(sock); | |
583 | ||
584 | return 0; | |
585 | } | |
586 | ||
66213b3c ML |
587 | static struct platform_driver db1x_pcmcia_socket_driver = { |
588 | .driver = { | |
589 | .name = "db1xxx_pcmcia", | |
66213b3c ML |
590 | }, |
591 | .probe = db1x_pcmcia_socket_probe, | |
96364e3a | 592 | .remove = db1x_pcmcia_socket_remove, |
66213b3c ML |
593 | }; |
594 | ||
5d95f8e2 | 595 | module_platform_driver(db1x_pcmcia_socket_driver); |
66213b3c ML |
596 | |
597 | MODULE_LICENSE("GPL"); | |
598 | MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards"); | |
599 | MODULE_AUTHOR("Manuel Lauss"); |