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Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * pcmciamtd.c - MTD driver for PCMCIA flash memory cards |
3 | * | |
4 | * Author: Simon Evans <spse@secret.org.uk> | |
5 | * | |
6 | * Copyright (C) 2002 Simon Evans | |
7 | * | |
8 | * Licence: GPL | |
9 | * | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/timer.h> | |
15 | #include <linux/init.h> | |
16 | #include <asm/io.h> | |
17 | #include <asm/system.h> | |
18 | ||
1da177e4 LT |
19 | #include <pcmcia/cistpl.h> |
20 | #include <pcmcia/ds.h> | |
21 | ||
22 | #include <linux/mtd/map.h> | |
23 | #include <linux/mtd/mtd.h> | |
24 | ||
25 | #ifdef CONFIG_MTD_DEBUG | |
26 | static int debug = CONFIG_MTD_DEBUG_VERBOSE; | |
8d3b33f6 | 27 | module_param(debug, int, 0); |
1da177e4 LT |
28 | MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy"); |
29 | #undef DEBUG | |
30 | #define DEBUG(n, format, arg...) \ | |
31 | if (n <= debug) { \ | |
cb53b3b9 | 32 | printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \ |
1da177e4 LT |
33 | } |
34 | ||
35 | #else | |
36 | #undef DEBUG | |
37 | #define DEBUG(n, arg...) | |
38 | static const int debug = 0; | |
39 | #endif | |
40 | ||
1da177e4 | 41 | #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) |
1da177e4 LT |
42 | |
43 | #define DRIVER_DESC "PCMCIA Flash memory card driver" | |
1da177e4 LT |
44 | |
45 | /* Size of the PCMCIA address space: 26 bits = 64 MB */ | |
46 | #define MAX_PCMCIA_ADDR 0x4000000 | |
47 | ||
48 | struct pcmciamtd_dev { | |
fd238232 | 49 | struct pcmcia_device *p_dev; |
1da177e4 LT |
50 | caddr_t win_base; /* ioremapped address of PCMCIA window */ |
51 | unsigned int win_size; /* size of window */ | |
52 | unsigned int offset; /* offset into card the window currently points at */ | |
53 | struct map_info pcmcia_map; | |
54 | struct mtd_info *mtd_info; | |
55 | int vpp; | |
56 | char mtd_name[sizeof(struct cistpl_vers_1_t)]; | |
57 | }; | |
58 | ||
59 | ||
1da177e4 LT |
60 | /* Module parameters */ |
61 | ||
62 | /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */ | |
63 | static int bankwidth = 2; | |
64 | ||
65 | /* Speed of memory accesses, in ns */ | |
66 | static int mem_speed; | |
67 | ||
68 | /* Force the size of an SRAM card */ | |
69 | static int force_size; | |
70 | ||
71 | /* Force Vpp */ | |
72 | static int vpp; | |
73 | ||
74 | /* Set Vpp */ | |
75 | static int setvpp; | |
76 | ||
77 | /* Force card to be treated as FLASH, ROM or RAM */ | |
78 | static int mem_type; | |
79 | ||
80 | MODULE_LICENSE("GPL"); | |
81 | MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); | |
82 | MODULE_DESCRIPTION(DRIVER_DESC); | |
8d3b33f6 | 83 | module_param(bankwidth, int, 0); |
1da177e4 | 84 | MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); |
8d3b33f6 | 85 | module_param(mem_speed, int, 0); |
1da177e4 | 86 | MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); |
8d3b33f6 | 87 | module_param(force_size, int, 0); |
1da177e4 | 88 | MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); |
8d3b33f6 | 89 | module_param(setvpp, int, 0); |
1da177e4 | 90 | MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); |
8d3b33f6 | 91 | module_param(vpp, int, 0); |
1da177e4 | 92 | MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); |
8d3b33f6 | 93 | module_param(mem_type, int, 0); |
1da177e4 LT |
94 | MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)"); |
95 | ||
96 | ||
9bdde162 AK |
97 | /* read/write{8,16} copy_{from,to} routines with window remapping |
98 | * to access whole card | |
99 | */ | |
1da177e4 LT |
100 | static caddr_t remap_window(struct map_info *map, unsigned long to) |
101 | { | |
102 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
cdb13808 | 103 | struct resource *win = (struct resource *) map->map_priv_2; |
b5cb259e | 104 | unsigned int offset; |
1da177e4 LT |
105 | int ret; |
106 | ||
e2d40963 DB |
107 | if (!pcmcia_dev_present(dev->p_dev)) { |
108 | DEBUG(1, "device removed"); | |
1da177e4 LT |
109 | return 0; |
110 | } | |
111 | ||
b5cb259e DB |
112 | offset = to & ~(dev->win_size-1); |
113 | if (offset != dev->offset) { | |
1da177e4 | 114 | DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x", |
b5cb259e DB |
115 | dev->offset, offset); |
116 | ret = pcmcia_map_mem_page(dev->p_dev, win, offset); | |
9b44de20 | 117 | if (ret != 0) |
1da177e4 | 118 | return NULL; |
b5cb259e | 119 | dev->offset = offset; |
1da177e4 LT |
120 | } |
121 | return dev->win_base + (to & (dev->win_size-1)); | |
122 | } | |
123 | ||
124 | ||
125 | static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) | |
126 | { | |
127 | caddr_t addr; | |
128 | map_word d = {{0}}; | |
129 | ||
130 | addr = remap_window(map, ofs); | |
131 | if(!addr) | |
132 | return d; | |
133 | ||
134 | d.x[0] = readb(addr); | |
f6763c98 | 135 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", ofs, addr, d.x[0]); |
1da177e4 LT |
136 | return d; |
137 | } | |
138 | ||
139 | ||
140 | static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) | |
141 | { | |
142 | caddr_t addr; | |
143 | map_word d = {{0}}; | |
144 | ||
145 | addr = remap_window(map, ofs); | |
146 | if(!addr) | |
147 | return d; | |
148 | ||
149 | d.x[0] = readw(addr); | |
f6763c98 | 150 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", ofs, addr, d.x[0]); |
1da177e4 LT |
151 | return d; |
152 | } | |
153 | ||
154 | ||
155 | static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) | |
156 | { | |
157 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
158 | unsigned long win_size = dev->win_size; | |
159 | ||
11c93605 | 160 | DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); |
1da177e4 LT |
161 | while(len) { |
162 | int toread = win_size - (from & (win_size-1)); | |
163 | caddr_t addr; | |
164 | ||
165 | if(toread > len) | |
166 | toread = len; | |
69f34c98 | 167 | |
1da177e4 LT |
168 | addr = remap_window(map, from); |
169 | if(!addr) | |
170 | return; | |
171 | ||
172 | DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); | |
173 | memcpy_fromio(to, addr, toread); | |
174 | len -= toread; | |
175 | to += toread; | |
176 | from += toread; | |
177 | } | |
178 | } | |
179 | ||
180 | ||
181 | static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) | |
182 | { | |
183 | caddr_t addr = remap_window(map, adr); | |
184 | ||
185 | if(!addr) | |
186 | return; | |
187 | ||
f6763c98 | 188 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", adr, addr, d.x[0]); |
1da177e4 LT |
189 | writeb(d.x[0], addr); |
190 | } | |
191 | ||
192 | ||
193 | static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) | |
194 | { | |
195 | caddr_t addr = remap_window(map, adr); | |
196 | if(!addr) | |
197 | return; | |
198 | ||
f6763c98 | 199 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", adr, addr, d.x[0]); |
1da177e4 LT |
200 | writew(d.x[0], addr); |
201 | } | |
202 | ||
203 | ||
204 | static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) | |
205 | { | |
206 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
207 | unsigned long win_size = dev->win_size; | |
208 | ||
11c93605 | 209 | DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); |
1da177e4 LT |
210 | while(len) { |
211 | int towrite = win_size - (to & (win_size-1)); | |
212 | caddr_t addr; | |
213 | ||
214 | if(towrite > len) | |
215 | towrite = len; | |
216 | ||
217 | addr = remap_window(map, to); | |
218 | if(!addr) | |
219 | return; | |
220 | ||
221 | DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); | |
222 | memcpy_toio(addr, from, towrite); | |
223 | len -= towrite; | |
224 | to += towrite; | |
225 | from += towrite; | |
226 | } | |
227 | } | |
228 | ||
229 | ||
230 | /* read/write{8,16} copy_{from,to} routines with direct access */ | |
231 | ||
e2d40963 | 232 | #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) |
1da177e4 LT |
233 | |
234 | static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) | |
235 | { | |
236 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
237 | map_word d = {{0}}; | |
238 | ||
239 | if(DEV_REMOVED(map)) | |
240 | return d; | |
241 | ||
242 | d.x[0] = readb(win_base + ofs); | |
9bdde162 AK |
243 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", |
244 | ofs, win_base + ofs, d.x[0]); | |
1da177e4 LT |
245 | return d; |
246 | } | |
247 | ||
248 | ||
249 | static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) | |
250 | { | |
251 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
252 | map_word d = {{0}}; | |
253 | ||
254 | if(DEV_REMOVED(map)) | |
255 | return d; | |
256 | ||
257 | d.x[0] = readw(win_base + ofs); | |
9bdde162 AK |
258 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", |
259 | ofs, win_base + ofs, d.x[0]); | |
1da177e4 LT |
260 | return d; |
261 | } | |
262 | ||
263 | ||
264 | static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) | |
265 | { | |
266 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
267 | ||
268 | if(DEV_REMOVED(map)) | |
269 | return; | |
270 | ||
11c93605 | 271 | DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); |
1da177e4 LT |
272 | memcpy_fromio(to, win_base + from, len); |
273 | } | |
274 | ||
275 | ||
f6763c98 | 276 | static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr) |
1da177e4 LT |
277 | { |
278 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
279 | ||
280 | if(DEV_REMOVED(map)) | |
281 | return; | |
282 | ||
9bdde162 AK |
283 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", |
284 | adr, win_base + adr, d.x[0]); | |
f6763c98 | 285 | writeb(d.x[0], win_base + adr); |
1da177e4 LT |
286 | } |
287 | ||
288 | ||
f6763c98 | 289 | static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr) |
1da177e4 LT |
290 | { |
291 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
292 | ||
293 | if(DEV_REMOVED(map)) | |
294 | return; | |
295 | ||
9bdde162 AK |
296 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", |
297 | adr, win_base + adr, d.x[0]); | |
f6763c98 | 298 | writew(d.x[0], win_base + adr); |
1da177e4 LT |
299 | } |
300 | ||
301 | ||
302 | static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) | |
303 | { | |
304 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
305 | ||
306 | if(DEV_REMOVED(map)) | |
307 | return; | |
308 | ||
11c93605 | 309 | DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); |
1da177e4 LT |
310 | memcpy_toio(win_base + to, from, len); |
311 | } | |
312 | ||
313 | ||
314 | static void pcmciamtd_set_vpp(struct map_info *map, int on) | |
315 | { | |
316 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
fba395ee | 317 | struct pcmcia_device *link = dev->p_dev; |
1da177e4 LT |
318 | |
319 | DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp); | |
fb49fa53 | 320 | pcmcia_fixup_vpp(link, on ? dev->vpp : 0); |
1da177e4 LT |
321 | } |
322 | ||
323 | ||
fba395ee | 324 | static void pcmciamtd_release(struct pcmcia_device *link) |
1da177e4 LT |
325 | { |
326 | struct pcmciamtd_dev *dev = link->priv; | |
327 | ||
328 | DEBUG(3, "link = 0x%p", link); | |
329 | ||
cdb13808 | 330 | if (link->resource[2]->end) { |
1da177e4 LT |
331 | if(dev->win_base) { |
332 | iounmap(dev->win_base); | |
333 | dev->win_base = NULL; | |
334 | } | |
1da177e4 | 335 | } |
fba395ee | 336 | pcmcia_disable_device(link); |
1da177e4 LT |
337 | } |
338 | ||
339 | ||
18b61b97 DB |
340 | #ifdef CONFIG_MTD_DEBUG |
341 | static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, | |
342 | tuple_t *tuple, | |
343 | void *priv_data) | |
1da177e4 | 344 | { |
1da177e4 | 345 | cisparse_t parse; |
69f34c98 | 346 | |
18b61b97 DB |
347 | if (!pcmcia_parse_tuple(tuple, &parse)) { |
348 | cistpl_format_t *t = &parse.format; | |
349 | (void)t; /* Shut up, gcc */ | |
350 | DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", | |
351 | t->type, t->edc, t->offset, t->length); | |
352 | } | |
353 | return -ENOSPC; | |
354 | } | |
69f34c98 | 355 | |
18b61b97 DB |
356 | static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, |
357 | tuple_t *tuple, | |
358 | void *priv_data) | |
359 | { | |
360 | cisparse_t parse; | |
361 | int i; | |
69f34c98 | 362 | |
18b61b97 DB |
363 | if (!pcmcia_parse_tuple(tuple, &parse)) { |
364 | cistpl_jedec_t *t = &parse.jedec; | |
365 | for (i = 0; i < t->nid; i++) | |
9bdde162 AK |
366 | DEBUG(2, "JEDEC: 0x%02x 0x%02x", |
367 | t->id[i].mfr, t->id[i].info); | |
18b61b97 DB |
368 | } |
369 | return -ENOSPC; | |
370 | } | |
371 | #endif | |
69f34c98 | 372 | |
18b61b97 DB |
373 | static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, |
374 | tuple_t *tuple, | |
375 | void *priv_data) | |
376 | { | |
377 | struct pcmciamtd_dev *dev = priv_data; | |
378 | cisparse_t parse; | |
379 | cistpl_device_t *t = &parse.device; | |
380 | int i; | |
381 | ||
382 | if (pcmcia_parse_tuple(tuple, &parse)) | |
383 | return -EINVAL; | |
384 | ||
385 | DEBUG(2, "Common memory:"); | |
386 | dev->pcmcia_map.size = t->dev[0].size; | |
387 | /* from here on: DEBUG only */ | |
388 | for (i = 0; i < t->ndev; i++) { | |
389 | DEBUG(2, "Region %d, type = %u", i, t->dev[i].type); | |
390 | DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp); | |
391 | DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed); | |
392 | DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size); | |
393 | } | |
394 | return 0; | |
395 | } | |
69f34c98 | 396 | |
18b61b97 DB |
397 | static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev, |
398 | tuple_t *tuple, | |
399 | void *priv_data) | |
400 | { | |
401 | struct pcmciamtd_dev *dev = priv_data; | |
402 | cisparse_t parse; | |
403 | cistpl_device_geo_t *t = &parse.device_geo; | |
404 | int i; | |
405 | ||
406 | if (pcmcia_parse_tuple(tuple, &parse)) | |
407 | return -EINVAL; | |
408 | ||
409 | dev->pcmcia_map.bankwidth = t->geo[0].buswidth; | |
410 | /* from here on: DEBUG only */ | |
411 | for (i = 0; i < t->ngeo; i++) { | |
412 | DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth); | |
413 | DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block); | |
414 | DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block); | |
415 | DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block); | |
416 | DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition); | |
417 | DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave); | |
418 | } | |
419 | return 0; | |
420 | } | |
69f34c98 | 421 | |
69f34c98 | 422 | |
f6763c98 | 423 | static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name) |
18b61b97 DB |
424 | { |
425 | int i; | |
426 | ||
427 | if (p_dev->prod_id[0]) { | |
428 | dev->mtd_name[0] = '\0'; | |
429 | for (i = 0; i < 4; i++) { | |
430 | if (i) | |
431 | strcat(dev->mtd_name, " "); | |
432 | if (p_dev->prod_id[i]) | |
433 | strcat(dev->mtd_name, p_dev->prod_id[i]); | |
1da177e4 | 434 | } |
18b61b97 | 435 | DEBUG(2, "Found name: %s", dev->mtd_name); |
1da177e4 | 436 | } |
18b61b97 DB |
437 | |
438 | #ifdef CONFIG_MTD_DEBUG | |
439 | pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL); | |
440 | pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL); | |
441 | #endif | |
442 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev); | |
443 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev); | |
444 | ||
1da177e4 LT |
445 | if(!dev->pcmcia_map.size) |
446 | dev->pcmcia_map.size = MAX_PCMCIA_ADDR; | |
447 | ||
448 | if(!dev->pcmcia_map.bankwidth) | |
449 | dev->pcmcia_map.bankwidth = 2; | |
450 | ||
451 | if(force_size) { | |
452 | dev->pcmcia_map.size = force_size << 20; | |
453 | DEBUG(2, "size forced to %dM", force_size); | |
454 | } | |
455 | ||
456 | if(bankwidth) { | |
457 | dev->pcmcia_map.bankwidth = bankwidth; | |
458 | DEBUG(2, "bankwidth forced to %d", bankwidth); | |
69f34c98 | 459 | } |
1da177e4 LT |
460 | |
461 | dev->pcmcia_map.name = dev->mtd_name; | |
462 | if(!dev->mtd_name[0]) { | |
463 | strcpy(dev->mtd_name, "PCMCIA Memory card"); | |
464 | *new_name = 1; | |
465 | } | |
466 | ||
467 | DEBUG(1, "Device: Size: %lu Width:%d Name: %s", | |
9bdde162 AK |
468 | dev->pcmcia_map.size, |
469 | dev->pcmcia_map.bankwidth << 3, dev->mtd_name); | |
1da177e4 LT |
470 | } |
471 | ||
472 | ||
15b99ac1 | 473 | static int pcmciamtd_config(struct pcmcia_device *link) |
1da177e4 LT |
474 | { |
475 | struct pcmciamtd_dev *dev = link->priv; | |
476 | struct mtd_info *mtd = NULL; | |
1da177e4 | 477 | int ret; |
cdb13808 | 478 | int i, j = 0; |
1da177e4 | 479 | static char *probes[] = { "jedec_probe", "cfi_probe" }; |
1da177e4 LT |
480 | int new_name = 0; |
481 | ||
482 | DEBUG(3, "link=0x%p", link); | |
483 | ||
1da177e4 LT |
484 | card_settings(dev, link, &new_name); |
485 | ||
486 | dev->pcmcia_map.phys = NO_XIP; | |
487 | dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; | |
488 | dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; | |
489 | if (dev->pcmcia_map.bankwidth == 1) { | |
490 | dev->pcmcia_map.read = pcmcia_read8_remap; | |
491 | dev->pcmcia_map.write = pcmcia_write8_remap; | |
492 | } else { | |
493 | dev->pcmcia_map.read = pcmcia_read16_remap; | |
494 | dev->pcmcia_map.write = pcmcia_write16_remap; | |
495 | } | |
496 | if(setvpp == 1) | |
497 | dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; | |
498 | ||
9bdde162 AK |
499 | /* Request a memory window for PCMCIA. Some architeures can map windows |
500 | * upto the maximum that PCMCIA can support (64MiB) - this is ideal and | |
501 | * we aim for a window the size of the whole card - otherwise we try | |
502 | * smaller windows until we succeed | |
503 | */ | |
1da177e4 | 504 | |
cdb13808 DB |
505 | link->resource[2]->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE; |
506 | link->resource[2]->flags |= (dev->pcmcia_map.bankwidth == 1) ? | |
507 | WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; | |
508 | link->resource[2]->start = 0; | |
509 | link->resource[2]->end = (force_size) ? force_size << 20 : | |
510 | MAX_PCMCIA_ADDR; | |
1da177e4 LT |
511 | dev->win_size = 0; |
512 | ||
513 | do { | |
514 | int ret; | |
cdb13808 DB |
515 | DEBUG(2, "requesting window with size = %luKiB memspeed = %d", |
516 | (unsigned long) resource_size(link->resource[2]) >> 10, | |
517 | mem_speed); | |
518 | ret = pcmcia_request_window(link, link->resource[2], mem_speed); | |
1da177e4 LT |
519 | DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); |
520 | if(ret) { | |
cdb13808 DB |
521 | j++; |
522 | link->resource[2]->start = 0; | |
523 | link->resource[2]->end = (force_size) ? | |
524 | force_size << 20 : MAX_PCMCIA_ADDR; | |
525 | link->resource[2]->end >>= j; | |
1da177e4 | 526 | } else { |
cdb13808 DB |
527 | DEBUG(2, "Got window of size %luKiB", (unsigned long) |
528 | resource_size(link->resource[2]) >> 10); | |
529 | dev->win_size = resource_size(link->resource[2]); | |
1da177e4 LT |
530 | break; |
531 | } | |
cdb13808 | 532 | } while (link->resource[2]->end >= 0x1000); |
1da177e4 LT |
533 | |
534 | DEBUG(2, "dev->win_size = %d", dev->win_size); | |
535 | ||
536 | if(!dev->win_size) { | |
9bdde162 | 537 | dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n"); |
1da177e4 | 538 | pcmciamtd_release(link); |
15b99ac1 | 539 | return -ENODEV; |
1da177e4 LT |
540 | } |
541 | DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); | |
69f34c98 | 542 | |
1da177e4 | 543 | /* Get write protect status */ |
cdb13808 DB |
544 | dev->win_base = ioremap(link->resource[2]->start, |
545 | resource_size(link->resource[2])); | |
1da177e4 | 546 | if(!dev->win_base) { |
cdb13808 DB |
547 | dev_err(&dev->p_dev->dev, "ioremap(%pR) failed\n", |
548 | link->resource[2]); | |
1da177e4 | 549 | pcmciamtd_release(link); |
15b99ac1 | 550 | return -ENODEV; |
1da177e4 | 551 | } |
cdb13808 DB |
552 | DEBUG(1, "mapped window dev = %p @ %pR, base = %p", |
553 | dev, link->resource[2], dev->win_base); | |
1da177e4 LT |
554 | |
555 | dev->offset = 0; | |
556 | dev->pcmcia_map.map_priv_1 = (unsigned long)dev; | |
cdb13808 | 557 | dev->pcmcia_map.map_priv_2 = (unsigned long)link->resource[2]; |
1da177e4 | 558 | |
f6763c98 | 559 | dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp; |
1da177e4 | 560 | if(setvpp == 2) { |
e8405f0f | 561 | link->vpp = dev->vpp; |
1da177e4 | 562 | } else { |
e8405f0f | 563 | link->vpp = 0; |
1da177e4 LT |
564 | } |
565 | ||
7feabb64 | 566 | link->config_index = 0; |
1da177e4 | 567 | DEBUG(2, "Setting Configuration"); |
1ac71e5a | 568 | ret = pcmcia_enable_device(link); |
4c89e88b | 569 | if (ret != 0) { |
25f0c659 AL |
570 | if (dev->win_base) { |
571 | iounmap(dev->win_base); | |
572 | dev->win_base = NULL; | |
573 | } | |
15b99ac1 | 574 | return -ENODEV; |
1da177e4 LT |
575 | } |
576 | ||
577 | if(mem_type == 1) { | |
578 | mtd = do_map_probe("map_ram", &dev->pcmcia_map); | |
579 | } else if(mem_type == 2) { | |
580 | mtd = do_map_probe("map_rom", &dev->pcmcia_map); | |
581 | } else { | |
87d10f3c | 582 | for(i = 0; i < ARRAY_SIZE(probes); i++) { |
1da177e4 LT |
583 | DEBUG(1, "Trying %s", probes[i]); |
584 | mtd = do_map_probe(probes[i], &dev->pcmcia_map); | |
585 | if(mtd) | |
586 | break; | |
69f34c98 | 587 | |
1da177e4 LT |
588 | DEBUG(1, "FAILED: %s", probes[i]); |
589 | } | |
590 | } | |
69f34c98 | 591 | |
1da177e4 | 592 | if(!mtd) { |
9bdde162 | 593 | DEBUG(1, "Can not find an MTD"); |
1da177e4 | 594 | pcmciamtd_release(link); |
15b99ac1 | 595 | return -ENODEV; |
1da177e4 LT |
596 | } |
597 | ||
598 | dev->mtd_info = mtd; | |
599 | mtd->owner = THIS_MODULE; | |
600 | ||
601 | if(new_name) { | |
602 | int size = 0; | |
603 | char unit = ' '; | |
9bdde162 AK |
604 | /* Since we are using a default name, make it better by adding |
605 | * in the size | |
606 | */ | |
1da177e4 LT |
607 | if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ |
608 | size = mtd->size >> 10; | |
609 | unit = 'K'; | |
610 | } else { | |
611 | size = mtd->size >> 20; | |
612 | unit = 'M'; | |
613 | } | |
614 | snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); | |
615 | } | |
616 | ||
617 | /* If the memory found is fits completely into the mapped PCMCIA window, | |
618 | use the faster non-remapping read/write functions */ | |
619 | if(mtd->size <= dev->win_size) { | |
620 | DEBUG(1, "Using non remapping memory functions"); | |
1da177e4 LT |
621 | dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; |
622 | if (dev->pcmcia_map.bankwidth == 1) { | |
623 | dev->pcmcia_map.read = pcmcia_read8; | |
624 | dev->pcmcia_map.write = pcmcia_write8; | |
625 | } else { | |
626 | dev->pcmcia_map.read = pcmcia_read16; | |
627 | dev->pcmcia_map.write = pcmcia_write16; | |
628 | } | |
629 | dev->pcmcia_map.copy_from = pcmcia_copy_from; | |
630 | dev->pcmcia_map.copy_to = pcmcia_copy_to; | |
631 | } | |
632 | ||
633 | if(add_mtd_device(mtd)) { | |
634 | map_destroy(mtd); | |
635 | dev->mtd_info = NULL; | |
9bdde162 AK |
636 | dev_err(&dev->p_dev->dev, |
637 | "Could not register the MTD device\n"); | |
1da177e4 | 638 | pcmciamtd_release(link); |
15b99ac1 | 639 | return -ENODEV; |
1da177e4 | 640 | } |
9bdde162 | 641 | dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name); |
15b99ac1 | 642 | return 0; |
1da177e4 LT |
643 | } |
644 | ||
645 | ||
98e4c28b DB |
646 | static int pcmciamtd_suspend(struct pcmcia_device *dev) |
647 | { | |
648 | DEBUG(2, "EVENT_PM_RESUME"); | |
649 | ||
650 | /* get_lock(link); */ | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
655 | static int pcmciamtd_resume(struct pcmcia_device *dev) | |
656 | { | |
657 | DEBUG(2, "EVENT_PM_SUSPEND"); | |
658 | ||
659 | /* free_lock(link); */ | |
660 | ||
661 | return 0; | |
662 | } | |
663 | ||
1da177e4 | 664 | |
fba395ee | 665 | static void pcmciamtd_detach(struct pcmcia_device *link) |
1da177e4 | 666 | { |
e2d40963 | 667 | struct pcmciamtd_dev *dev = link->priv; |
cc3b4866 | 668 | |
1da177e4 LT |
669 | DEBUG(3, "link=0x%p", link); |
670 | ||
e2d40963 DB |
671 | if(dev->mtd_info) { |
672 | del_mtd_device(dev->mtd_info); | |
9bdde162 AK |
673 | dev_info(&dev->p_dev->dev, "mtd%d: Removing\n", |
674 | dev->mtd_info->index); | |
599fb329 | 675 | map_destroy(dev->mtd_info); |
1da177e4 | 676 | } |
e2d40963 DB |
677 | |
678 | pcmciamtd_release(link); | |
1da177e4 LT |
679 | } |
680 | ||
681 | ||
15b99ac1 | 682 | static int pcmciamtd_probe(struct pcmcia_device *link) |
1da177e4 LT |
683 | { |
684 | struct pcmciamtd_dev *dev; | |
1da177e4 LT |
685 | |
686 | /* Create new memory card device */ | |
95b93a0c | 687 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
f8cfa618 | 688 | if (!dev) return -ENOMEM; |
1da177e4 LT |
689 | DEBUG(1, "dev=0x%p", dev); |
690 | ||
fba395ee | 691 | dev->p_dev = link; |
1da177e4 LT |
692 | link->priv = dev; |
693 | ||
15b99ac1 | 694 | return pcmciamtd_config(link); |
1da177e4 LT |
695 | } |
696 | ||
11d28a30 DB |
697 | static struct pcmcia_device_id pcmciamtd_ids[] = { |
698 | PCMCIA_DEVICE_FUNC_ID(1), | |
699 | PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), | |
700 | PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), | |
701 | PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), | |
702 | PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), | |
703 | PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), | |
704 | PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), | |
705 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), | |
706 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), | |
707 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), | |
708 | PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), | |
709 | PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), | |
710 | PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), | |
f6763c98 | 711 | PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965), |
b2321ac3 | 712 | PCMCIA_DEVICE_PROD_ID12("PRETEC", " 2MB SRAM CARD", 0xebf91155, 0x805360ca), |
11d28a30 DB |
713 | PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), |
714 | PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), | |
f6763c98 | 715 | PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05), |
11d28a30 DB |
716 | PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), |
717 | PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), | |
718 | /* the following was commented out in pcmcia-cs-3.2.7 */ | |
719 | /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ | |
720 | #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS | |
721 | { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, | |
722 | #endif | |
723 | PCMCIA_DEVICE_NULL | |
724 | }; | |
725 | MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); | |
1da177e4 LT |
726 | |
727 | static struct pcmcia_driver pcmciamtd_driver = { | |
2e9b981a | 728 | .name = "pcmciamtd", |
15b99ac1 | 729 | .probe = pcmciamtd_probe, |
cc3b4866 | 730 | .remove = pcmciamtd_detach, |
11d28a30 DB |
731 | .owner = THIS_MODULE, |
732 | .id_table = pcmciamtd_ids, | |
98e4c28b DB |
733 | .suspend = pcmciamtd_suspend, |
734 | .resume = pcmciamtd_resume, | |
1da177e4 LT |
735 | }; |
736 | ||
737 | ||
738 | static int __init init_pcmciamtd(void) | |
739 | { | |
1da177e4 LT |
740 | if(bankwidth && bankwidth != 1 && bankwidth != 2) { |
741 | info("bad bankwidth (%d), using default", bankwidth); | |
742 | bankwidth = 2; | |
743 | } | |
744 | if(force_size && (force_size < 1 || force_size > 64)) { | |
745 | info("bad force_size (%d), using default", force_size); | |
746 | force_size = 0; | |
747 | } | |
748 | if(mem_type && mem_type != 1 && mem_type != 2) { | |
749 | info("bad mem_type (%d), using default", mem_type); | |
750 | mem_type = 0; | |
751 | } | |
752 | return pcmcia_register_driver(&pcmciamtd_driver); | |
753 | } | |
754 | ||
755 | ||
756 | static void __exit exit_pcmciamtd(void) | |
757 | { | |
758 | DEBUG(1, DRIVER_DESC " unloading"); | |
759 | pcmcia_unregister_driver(&pcmciamtd_driver); | |
1da177e4 LT |
760 | } |
761 | ||
762 | module_init(init_pcmciamtd); | |
763 | module_exit(exit_pcmciamtd); |