Commit | Line | Data |
---|---|---|
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> | |
1da177e4 | 17 | |
1da177e4 LT |
18 | #include <pcmcia/cistpl.h> |
19 | #include <pcmcia/ds.h> | |
20 | ||
21 | #include <linux/mtd/map.h> | |
22 | #include <linux/mtd/mtd.h> | |
23 | ||
1da177e4 | 24 | #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) |
1da177e4 LT |
25 | |
26 | #define DRIVER_DESC "PCMCIA Flash memory card driver" | |
1da177e4 LT |
27 | |
28 | /* Size of the PCMCIA address space: 26 bits = 64 MB */ | |
29 | #define MAX_PCMCIA_ADDR 0x4000000 | |
30 | ||
31 | struct pcmciamtd_dev { | |
fd238232 | 32 | struct pcmcia_device *p_dev; |
1da177e4 LT |
33 | caddr_t win_base; /* ioremapped address of PCMCIA window */ |
34 | unsigned int win_size; /* size of window */ | |
35 | unsigned int offset; /* offset into card the window currently points at */ | |
36 | struct map_info pcmcia_map; | |
37 | struct mtd_info *mtd_info; | |
38 | int vpp; | |
39 | char mtd_name[sizeof(struct cistpl_vers_1_t)]; | |
40 | }; | |
41 | ||
42 | ||
1da177e4 LT |
43 | /* Module parameters */ |
44 | ||
45 | /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */ | |
46 | static int bankwidth = 2; | |
47 | ||
48 | /* Speed of memory accesses, in ns */ | |
49 | static int mem_speed; | |
50 | ||
51 | /* Force the size of an SRAM card */ | |
52 | static int force_size; | |
53 | ||
54 | /* Force Vpp */ | |
55 | static int vpp; | |
56 | ||
57 | /* Set Vpp */ | |
58 | static int setvpp; | |
59 | ||
60 | /* Force card to be treated as FLASH, ROM or RAM */ | |
61 | static int mem_type; | |
62 | ||
63 | MODULE_LICENSE("GPL"); | |
64 | MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); | |
65 | MODULE_DESCRIPTION(DRIVER_DESC); | |
8d3b33f6 | 66 | module_param(bankwidth, int, 0); |
1da177e4 | 67 | MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); |
8d3b33f6 | 68 | module_param(mem_speed, int, 0); |
1da177e4 | 69 | MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); |
8d3b33f6 | 70 | module_param(force_size, int, 0); |
1da177e4 | 71 | MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); |
8d3b33f6 | 72 | module_param(setvpp, int, 0); |
1da177e4 | 73 | MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); |
8d3b33f6 | 74 | module_param(vpp, int, 0); |
1da177e4 | 75 | MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); |
8d3b33f6 | 76 | module_param(mem_type, int, 0); |
1da177e4 LT |
77 | MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)"); |
78 | ||
79 | ||
9bdde162 AK |
80 | /* read/write{8,16} copy_{from,to} routines with window remapping |
81 | * to access whole card | |
82 | */ | |
1da177e4 LT |
83 | static caddr_t remap_window(struct map_info *map, unsigned long to) |
84 | { | |
85 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
cdb13808 | 86 | struct resource *win = (struct resource *) map->map_priv_2; |
b5cb259e | 87 | unsigned int offset; |
1da177e4 LT |
88 | int ret; |
89 | ||
e2d40963 | 90 | if (!pcmcia_dev_present(dev->p_dev)) { |
e6453521 | 91 | pr_debug("device removed\n"); |
1da177e4 LT |
92 | return 0; |
93 | } | |
94 | ||
b5cb259e DB |
95 | offset = to & ~(dev->win_size-1); |
96 | if (offset != dev->offset) { | |
e6453521 | 97 | pr_debug("Remapping window from 0x%8.8x to 0x%8.8x\n", |
b5cb259e DB |
98 | dev->offset, offset); |
99 | ret = pcmcia_map_mem_page(dev->p_dev, win, offset); | |
9b44de20 | 100 | if (ret != 0) |
1da177e4 | 101 | return NULL; |
b5cb259e | 102 | dev->offset = offset; |
1da177e4 LT |
103 | } |
104 | return dev->win_base + (to & (dev->win_size-1)); | |
105 | } | |
106 | ||
107 | ||
108 | static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) | |
109 | { | |
110 | caddr_t addr; | |
111 | map_word d = {{0}}; | |
112 | ||
113 | addr = remap_window(map, ofs); | |
114 | if(!addr) | |
115 | return d; | |
116 | ||
117 | d.x[0] = readb(addr); | |
e6453521 | 118 | pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n", ofs, addr, d.x[0]); |
1da177e4 LT |
119 | return d; |
120 | } | |
121 | ||
122 | ||
123 | static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) | |
124 | { | |
125 | caddr_t addr; | |
126 | map_word d = {{0}}; | |
127 | ||
128 | addr = remap_window(map, ofs); | |
129 | if(!addr) | |
130 | return d; | |
131 | ||
132 | d.x[0] = readw(addr); | |
e6453521 | 133 | pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n", ofs, addr, d.x[0]); |
1da177e4 LT |
134 | return d; |
135 | } | |
136 | ||
137 | ||
138 | static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) | |
139 | { | |
140 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
141 | unsigned long win_size = dev->win_size; | |
142 | ||
e6453521 | 143 | pr_debug("to = %p from = %lu len = %zd\n", to, from, len); |
1da177e4 LT |
144 | while(len) { |
145 | int toread = win_size - (from & (win_size-1)); | |
146 | caddr_t addr; | |
147 | ||
148 | if(toread > len) | |
149 | toread = len; | |
69f34c98 | 150 | |
1da177e4 LT |
151 | addr = remap_window(map, from); |
152 | if(!addr) | |
153 | return; | |
154 | ||
e6453521 | 155 | pr_debug("memcpy from %p to %p len = %d\n", addr, to, toread); |
1da177e4 LT |
156 | memcpy_fromio(to, addr, toread); |
157 | len -= toread; | |
158 | to += toread; | |
159 | from += toread; | |
160 | } | |
161 | } | |
162 | ||
163 | ||
164 | static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) | |
165 | { | |
166 | caddr_t addr = remap_window(map, adr); | |
167 | ||
168 | if(!addr) | |
169 | return; | |
170 | ||
e6453521 | 171 | pr_debug("adr = 0x%08lx (%p) data = 0x%02lx\n", adr, addr, d.x[0]); |
1da177e4 LT |
172 | writeb(d.x[0], addr); |
173 | } | |
174 | ||
175 | ||
176 | static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) | |
177 | { | |
178 | caddr_t addr = remap_window(map, adr); | |
179 | if(!addr) | |
180 | return; | |
181 | ||
e6453521 | 182 | pr_debug("adr = 0x%08lx (%p) data = 0x%04lx\n", adr, addr, d.x[0]); |
1da177e4 LT |
183 | writew(d.x[0], addr); |
184 | } | |
185 | ||
186 | ||
187 | static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) | |
188 | { | |
189 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
190 | unsigned long win_size = dev->win_size; | |
191 | ||
e6453521 | 192 | pr_debug("to = %lu from = %p len = %zd\n", to, from, len); |
1da177e4 LT |
193 | while(len) { |
194 | int towrite = win_size - (to & (win_size-1)); | |
195 | caddr_t addr; | |
196 | ||
197 | if(towrite > len) | |
198 | towrite = len; | |
199 | ||
200 | addr = remap_window(map, to); | |
201 | if(!addr) | |
202 | return; | |
203 | ||
e6453521 | 204 | pr_debug("memcpy from %p to %p len = %d\n", from, addr, towrite); |
1da177e4 LT |
205 | memcpy_toio(addr, from, towrite); |
206 | len -= towrite; | |
207 | to += towrite; | |
208 | from += towrite; | |
209 | } | |
210 | } | |
211 | ||
212 | ||
213 | /* read/write{8,16} copy_{from,to} routines with direct access */ | |
214 | ||
e2d40963 | 215 | #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) |
1da177e4 LT |
216 | |
217 | static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) | |
218 | { | |
219 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
220 | map_word d = {{0}}; | |
221 | ||
222 | if(DEV_REMOVED(map)) | |
223 | return d; | |
224 | ||
225 | d.x[0] = readb(win_base + ofs); | |
e6453521 | 226 | pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n", |
9bdde162 | 227 | ofs, win_base + ofs, d.x[0]); |
1da177e4 LT |
228 | return d; |
229 | } | |
230 | ||
231 | ||
232 | static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) | |
233 | { | |
234 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
235 | map_word d = {{0}}; | |
236 | ||
237 | if(DEV_REMOVED(map)) | |
238 | return d; | |
239 | ||
240 | d.x[0] = readw(win_base + ofs); | |
e6453521 | 241 | pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n", |
9bdde162 | 242 | ofs, win_base + ofs, d.x[0]); |
1da177e4 LT |
243 | return d; |
244 | } | |
245 | ||
246 | ||
247 | static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) | |
248 | { | |
249 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
250 | ||
251 | if(DEV_REMOVED(map)) | |
252 | return; | |
253 | ||
e6453521 | 254 | pr_debug("to = %p from = %lu len = %zd\n", to, from, len); |
1da177e4 LT |
255 | memcpy_fromio(to, win_base + from, len); |
256 | } | |
257 | ||
258 | ||
f6763c98 | 259 | static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr) |
1da177e4 LT |
260 | { |
261 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
262 | ||
263 | if(DEV_REMOVED(map)) | |
264 | return; | |
265 | ||
e6453521 | 266 | pr_debug("adr = 0x%08lx (%p) data = 0x%02lx\n", |
9bdde162 | 267 | adr, win_base + adr, d.x[0]); |
f6763c98 | 268 | writeb(d.x[0], win_base + adr); |
1da177e4 LT |
269 | } |
270 | ||
271 | ||
f6763c98 | 272 | static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr) |
1da177e4 LT |
273 | { |
274 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
275 | ||
276 | if(DEV_REMOVED(map)) | |
277 | return; | |
278 | ||
e6453521 | 279 | pr_debug("adr = 0x%08lx (%p) data = 0x%04lx\n", |
9bdde162 | 280 | adr, win_base + adr, d.x[0]); |
f6763c98 | 281 | writew(d.x[0], win_base + adr); |
1da177e4 LT |
282 | } |
283 | ||
284 | ||
285 | static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) | |
286 | { | |
287 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
288 | ||
289 | if(DEV_REMOVED(map)) | |
290 | return; | |
291 | ||
e6453521 | 292 | pr_debug("to = %lu from = %p len = %zd\n", to, from, len); |
1da177e4 LT |
293 | memcpy_toio(win_base + to, from, len); |
294 | } | |
295 | ||
296 | ||
7c8d206f PP |
297 | static DEFINE_SPINLOCK(pcmcia_vpp_lock); |
298 | static int pcmcia_vpp_refcnt; | |
1da177e4 LT |
299 | static void pcmciamtd_set_vpp(struct map_info *map, int on) |
300 | { | |
301 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
fba395ee | 302 | struct pcmcia_device *link = dev->p_dev; |
7c8d206f | 303 | unsigned long flags; |
1da177e4 | 304 | |
e6453521 | 305 | pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp); |
7c8d206f PP |
306 | spin_lock_irqsave(&pcmcia_vpp_lock, flags); |
307 | if (on) { | |
308 | if (++pcmcia_vpp_refcnt == 1) /* first nested 'on' */ | |
309 | pcmcia_fixup_vpp(link, dev->vpp); | |
310 | } else { | |
311 | if (--pcmcia_vpp_refcnt == 0) /* last nested 'off' */ | |
312 | pcmcia_fixup_vpp(link, 0); | |
313 | } | |
314 | spin_unlock_irqrestore(&pcmcia_vpp_lock, flags); | |
1da177e4 LT |
315 | } |
316 | ||
317 | ||
fba395ee | 318 | static void pcmciamtd_release(struct pcmcia_device *link) |
1da177e4 LT |
319 | { |
320 | struct pcmciamtd_dev *dev = link->priv; | |
321 | ||
e6453521 | 322 | pr_debug("link = 0x%p\n", link); |
1da177e4 | 323 | |
cdb13808 | 324 | if (link->resource[2]->end) { |
1da177e4 LT |
325 | if(dev->win_base) { |
326 | iounmap(dev->win_base); | |
327 | dev->win_base = NULL; | |
328 | } | |
1da177e4 | 329 | } |
fba395ee | 330 | pcmcia_disable_device(link); |
1da177e4 LT |
331 | } |
332 | ||
333 | ||
18b61b97 DB |
334 | static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, |
335 | tuple_t *tuple, | |
336 | void *priv_data) | |
1da177e4 | 337 | { |
1da177e4 | 338 | cisparse_t parse; |
69f34c98 | 339 | |
18b61b97 DB |
340 | if (!pcmcia_parse_tuple(tuple, &parse)) { |
341 | cistpl_format_t *t = &parse.format; | |
342 | (void)t; /* Shut up, gcc */ | |
e6453521 | 343 | pr_debug("Format type: %u, Error Detection: %u, offset = %u, length =%u\n", |
18b61b97 DB |
344 | t->type, t->edc, t->offset, t->length); |
345 | } | |
346 | return -ENOSPC; | |
347 | } | |
69f34c98 | 348 | |
18b61b97 DB |
349 | static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, |
350 | tuple_t *tuple, | |
351 | void *priv_data) | |
352 | { | |
353 | cisparse_t parse; | |
354 | int i; | |
69f34c98 | 355 | |
18b61b97 DB |
356 | if (!pcmcia_parse_tuple(tuple, &parse)) { |
357 | cistpl_jedec_t *t = &parse.jedec; | |
358 | for (i = 0; i < t->nid; i++) | |
e6453521 | 359 | pr_debug("JEDEC: 0x%02x 0x%02x\n", |
9bdde162 | 360 | t->id[i].mfr, t->id[i].info); |
18b61b97 DB |
361 | } |
362 | return -ENOSPC; | |
363 | } | |
69f34c98 | 364 | |
18b61b97 DB |
365 | static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, |
366 | tuple_t *tuple, | |
367 | void *priv_data) | |
368 | { | |
369 | struct pcmciamtd_dev *dev = priv_data; | |
370 | cisparse_t parse; | |
371 | cistpl_device_t *t = &parse.device; | |
372 | int i; | |
373 | ||
374 | if (pcmcia_parse_tuple(tuple, &parse)) | |
375 | return -EINVAL; | |
376 | ||
e6453521 | 377 | pr_debug("Common memory:\n"); |
18b61b97 DB |
378 | dev->pcmcia_map.size = t->dev[0].size; |
379 | /* from here on: DEBUG only */ | |
380 | for (i = 0; i < t->ndev; i++) { | |
e6453521 BN |
381 | pr_debug("Region %d, type = %u\n", i, t->dev[i].type); |
382 | pr_debug("Region %d, wp = %u\n", i, t->dev[i].wp); | |
383 | pr_debug("Region %d, speed = %u ns\n", i, t->dev[i].speed); | |
384 | pr_debug("Region %d, size = %u bytes\n", i, t->dev[i].size); | |
18b61b97 DB |
385 | } |
386 | return 0; | |
387 | } | |
69f34c98 | 388 | |
18b61b97 DB |
389 | static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev, |
390 | tuple_t *tuple, | |
391 | void *priv_data) | |
392 | { | |
393 | struct pcmciamtd_dev *dev = priv_data; | |
394 | cisparse_t parse; | |
395 | cistpl_device_geo_t *t = &parse.device_geo; | |
396 | int i; | |
397 | ||
398 | if (pcmcia_parse_tuple(tuple, &parse)) | |
399 | return -EINVAL; | |
400 | ||
401 | dev->pcmcia_map.bankwidth = t->geo[0].buswidth; | |
402 | /* from here on: DEBUG only */ | |
403 | for (i = 0; i < t->ngeo; i++) { | |
e6453521 BN |
404 | pr_debug("region: %d bankwidth = %u\n", i, t->geo[i].buswidth); |
405 | pr_debug("region: %d erase_block = %u\n", i, t->geo[i].erase_block); | |
406 | pr_debug("region: %d read_block = %u\n", i, t->geo[i].read_block); | |
407 | pr_debug("region: %d write_block = %u\n", i, t->geo[i].write_block); | |
408 | pr_debug("region: %d partition = %u\n", i, t->geo[i].partition); | |
409 | pr_debug("region: %d interleave = %u\n", i, t->geo[i].interleave); | |
18b61b97 DB |
410 | } |
411 | return 0; | |
412 | } | |
69f34c98 | 413 | |
69f34c98 | 414 | |
f6763c98 | 415 | static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name) |
18b61b97 DB |
416 | { |
417 | int i; | |
418 | ||
419 | if (p_dev->prod_id[0]) { | |
420 | dev->mtd_name[0] = '\0'; | |
421 | for (i = 0; i < 4; i++) { | |
422 | if (i) | |
423 | strcat(dev->mtd_name, " "); | |
424 | if (p_dev->prod_id[i]) | |
425 | strcat(dev->mtd_name, p_dev->prod_id[i]); | |
1da177e4 | 426 | } |
e6453521 | 427 | pr_debug("Found name: %s\n", dev->mtd_name); |
1da177e4 | 428 | } |
18b61b97 | 429 | |
18b61b97 DB |
430 | pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL); |
431 | pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL); | |
18b61b97 DB |
432 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev); |
433 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev); | |
434 | ||
1da177e4 LT |
435 | if(!dev->pcmcia_map.size) |
436 | dev->pcmcia_map.size = MAX_PCMCIA_ADDR; | |
437 | ||
438 | if(!dev->pcmcia_map.bankwidth) | |
439 | dev->pcmcia_map.bankwidth = 2; | |
440 | ||
441 | if(force_size) { | |
442 | dev->pcmcia_map.size = force_size << 20; | |
e6453521 | 443 | pr_debug("size forced to %dM\n", force_size); |
1da177e4 LT |
444 | } |
445 | ||
446 | if(bankwidth) { | |
447 | dev->pcmcia_map.bankwidth = bankwidth; | |
e6453521 | 448 | pr_debug("bankwidth forced to %d\n", bankwidth); |
69f34c98 | 449 | } |
1da177e4 LT |
450 | |
451 | dev->pcmcia_map.name = dev->mtd_name; | |
452 | if(!dev->mtd_name[0]) { | |
453 | strcpy(dev->mtd_name, "PCMCIA Memory card"); | |
454 | *new_name = 1; | |
455 | } | |
456 | ||
e6453521 | 457 | pr_debug("Device: Size: %lu Width:%d Name: %s\n", |
9bdde162 AK |
458 | dev->pcmcia_map.size, |
459 | dev->pcmcia_map.bankwidth << 3, dev->mtd_name); | |
1da177e4 LT |
460 | } |
461 | ||
462 | ||
15b99ac1 | 463 | static int pcmciamtd_config(struct pcmcia_device *link) |
1da177e4 LT |
464 | { |
465 | struct pcmciamtd_dev *dev = link->priv; | |
466 | struct mtd_info *mtd = NULL; | |
1da177e4 | 467 | int ret; |
cdb13808 | 468 | int i, j = 0; |
1da177e4 | 469 | static char *probes[] = { "jedec_probe", "cfi_probe" }; |
1da177e4 LT |
470 | int new_name = 0; |
471 | ||
e6453521 | 472 | pr_debug("link=0x%p\n", link); |
1da177e4 | 473 | |
1da177e4 LT |
474 | card_settings(dev, link, &new_name); |
475 | ||
476 | dev->pcmcia_map.phys = NO_XIP; | |
477 | dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; | |
478 | dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; | |
479 | if (dev->pcmcia_map.bankwidth == 1) { | |
480 | dev->pcmcia_map.read = pcmcia_read8_remap; | |
481 | dev->pcmcia_map.write = pcmcia_write8_remap; | |
482 | } else { | |
483 | dev->pcmcia_map.read = pcmcia_read16_remap; | |
484 | dev->pcmcia_map.write = pcmcia_write16_remap; | |
485 | } | |
486 | if(setvpp == 1) | |
487 | dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; | |
488 | ||
9bdde162 | 489 | /* Request a memory window for PCMCIA. Some architeures can map windows |
25985edc | 490 | * up to the maximum that PCMCIA can support (64MiB) - this is ideal and |
9bdde162 AK |
491 | * we aim for a window the size of the whole card - otherwise we try |
492 | * smaller windows until we succeed | |
493 | */ | |
1da177e4 | 494 | |
cdb13808 DB |
495 | link->resource[2]->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE; |
496 | link->resource[2]->flags |= (dev->pcmcia_map.bankwidth == 1) ? | |
497 | WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; | |
498 | link->resource[2]->start = 0; | |
499 | link->resource[2]->end = (force_size) ? force_size << 20 : | |
500 | MAX_PCMCIA_ADDR; | |
1da177e4 LT |
501 | dev->win_size = 0; |
502 | ||
503 | do { | |
504 | int ret; | |
e6453521 | 505 | pr_debug("requesting window with size = %luKiB memspeed = %d\n", |
cdb13808 DB |
506 | (unsigned long) resource_size(link->resource[2]) >> 10, |
507 | mem_speed); | |
508 | ret = pcmcia_request_window(link, link->resource[2], mem_speed); | |
e6453521 | 509 | pr_debug("ret = %d dev->win_size = %d\n", ret, dev->win_size); |
1da177e4 | 510 | if(ret) { |
cdb13808 DB |
511 | j++; |
512 | link->resource[2]->start = 0; | |
513 | link->resource[2]->end = (force_size) ? | |
514 | force_size << 20 : MAX_PCMCIA_ADDR; | |
515 | link->resource[2]->end >>= j; | |
1da177e4 | 516 | } else { |
e6453521 | 517 | pr_debug("Got window of size %luKiB\n", (unsigned long) |
cdb13808 DB |
518 | resource_size(link->resource[2]) >> 10); |
519 | dev->win_size = resource_size(link->resource[2]); | |
1da177e4 LT |
520 | break; |
521 | } | |
cdb13808 | 522 | } while (link->resource[2]->end >= 0x1000); |
1da177e4 | 523 | |
e6453521 | 524 | pr_debug("dev->win_size = %d\n", dev->win_size); |
1da177e4 LT |
525 | |
526 | if(!dev->win_size) { | |
9bdde162 | 527 | dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n"); |
1da177e4 | 528 | pcmciamtd_release(link); |
15b99ac1 | 529 | return -ENODEV; |
1da177e4 | 530 | } |
e6453521 | 531 | pr_debug("Allocated a window of %dKiB\n", dev->win_size >> 10); |
69f34c98 | 532 | |
1da177e4 | 533 | /* Get write protect status */ |
cdb13808 DB |
534 | dev->win_base = ioremap(link->resource[2]->start, |
535 | resource_size(link->resource[2])); | |
1da177e4 | 536 | if(!dev->win_base) { |
cdb13808 DB |
537 | dev_err(&dev->p_dev->dev, "ioremap(%pR) failed\n", |
538 | link->resource[2]); | |
1da177e4 | 539 | pcmciamtd_release(link); |
15b99ac1 | 540 | return -ENODEV; |
1da177e4 | 541 | } |
e6453521 | 542 | pr_debug("mapped window dev = %p @ %pR, base = %p\n", |
cdb13808 | 543 | dev, link->resource[2], dev->win_base); |
1da177e4 LT |
544 | |
545 | dev->offset = 0; | |
546 | dev->pcmcia_map.map_priv_1 = (unsigned long)dev; | |
cdb13808 | 547 | dev->pcmcia_map.map_priv_2 = (unsigned long)link->resource[2]; |
1da177e4 | 548 | |
f6763c98 | 549 | dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp; |
1da177e4 | 550 | if(setvpp == 2) { |
e8405f0f | 551 | link->vpp = dev->vpp; |
1da177e4 | 552 | } else { |
e8405f0f | 553 | link->vpp = 0; |
1da177e4 LT |
554 | } |
555 | ||
7feabb64 | 556 | link->config_index = 0; |
e6453521 | 557 | pr_debug("Setting Configuration\n"); |
1ac71e5a | 558 | ret = pcmcia_enable_device(link); |
4c89e88b | 559 | if (ret != 0) { |
25f0c659 AL |
560 | if (dev->win_base) { |
561 | iounmap(dev->win_base); | |
562 | dev->win_base = NULL; | |
563 | } | |
15b99ac1 | 564 | return -ENODEV; |
1da177e4 LT |
565 | } |
566 | ||
567 | if(mem_type == 1) { | |
568 | mtd = do_map_probe("map_ram", &dev->pcmcia_map); | |
569 | } else if(mem_type == 2) { | |
570 | mtd = do_map_probe("map_rom", &dev->pcmcia_map); | |
571 | } else { | |
87d10f3c | 572 | for(i = 0; i < ARRAY_SIZE(probes); i++) { |
e6453521 | 573 | pr_debug("Trying %s\n", probes[i]); |
1da177e4 LT |
574 | mtd = do_map_probe(probes[i], &dev->pcmcia_map); |
575 | if(mtd) | |
576 | break; | |
69f34c98 | 577 | |
e6453521 | 578 | pr_debug("FAILED: %s\n", probes[i]); |
1da177e4 LT |
579 | } |
580 | } | |
69f34c98 | 581 | |
1da177e4 | 582 | if(!mtd) { |
e6453521 | 583 | pr_debug("Can not find an MTD\n"); |
1da177e4 | 584 | pcmciamtd_release(link); |
15b99ac1 | 585 | return -ENODEV; |
1da177e4 LT |
586 | } |
587 | ||
588 | dev->mtd_info = mtd; | |
589 | mtd->owner = THIS_MODULE; | |
590 | ||
591 | if(new_name) { | |
592 | int size = 0; | |
593 | char unit = ' '; | |
9bdde162 AK |
594 | /* Since we are using a default name, make it better by adding |
595 | * in the size | |
596 | */ | |
1da177e4 LT |
597 | if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ |
598 | size = mtd->size >> 10; | |
599 | unit = 'K'; | |
600 | } else { | |
601 | size = mtd->size >> 20; | |
602 | unit = 'M'; | |
603 | } | |
604 | snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); | |
605 | } | |
606 | ||
607 | /* If the memory found is fits completely into the mapped PCMCIA window, | |
608 | use the faster non-remapping read/write functions */ | |
609 | if(mtd->size <= dev->win_size) { | |
e6453521 | 610 | pr_debug("Using non remapping memory functions\n"); |
1da177e4 LT |
611 | dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; |
612 | if (dev->pcmcia_map.bankwidth == 1) { | |
613 | dev->pcmcia_map.read = pcmcia_read8; | |
614 | dev->pcmcia_map.write = pcmcia_write8; | |
615 | } else { | |
616 | dev->pcmcia_map.read = pcmcia_read16; | |
617 | dev->pcmcia_map.write = pcmcia_write16; | |
618 | } | |
619 | dev->pcmcia_map.copy_from = pcmcia_copy_from; | |
620 | dev->pcmcia_map.copy_to = pcmcia_copy_to; | |
621 | } | |
622 | ||
ee0e87b1 | 623 | if (mtd_device_register(mtd, NULL, 0)) { |
1da177e4 LT |
624 | map_destroy(mtd); |
625 | dev->mtd_info = NULL; | |
9bdde162 AK |
626 | dev_err(&dev->p_dev->dev, |
627 | "Could not register the MTD device\n"); | |
1da177e4 | 628 | pcmciamtd_release(link); |
15b99ac1 | 629 | return -ENODEV; |
1da177e4 | 630 | } |
9bdde162 | 631 | dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name); |
15b99ac1 | 632 | return 0; |
1da177e4 LT |
633 | } |
634 | ||
635 | ||
98e4c28b DB |
636 | static int pcmciamtd_suspend(struct pcmcia_device *dev) |
637 | { | |
e6453521 | 638 | pr_debug("EVENT_PM_RESUME\n"); |
98e4c28b DB |
639 | |
640 | /* get_lock(link); */ | |
641 | ||
642 | return 0; | |
643 | } | |
644 | ||
645 | static int pcmciamtd_resume(struct pcmcia_device *dev) | |
646 | { | |
e6453521 | 647 | pr_debug("EVENT_PM_SUSPEND\n"); |
98e4c28b DB |
648 | |
649 | /* free_lock(link); */ | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
1da177e4 | 654 | |
fba395ee | 655 | static void pcmciamtd_detach(struct pcmcia_device *link) |
1da177e4 | 656 | { |
e2d40963 | 657 | struct pcmciamtd_dev *dev = link->priv; |
cc3b4866 | 658 | |
e6453521 | 659 | pr_debug("link=0x%p\n", link); |
1da177e4 | 660 | |
e2d40963 | 661 | if(dev->mtd_info) { |
ee0e87b1 | 662 | mtd_device_unregister(dev->mtd_info); |
9bdde162 AK |
663 | dev_info(&dev->p_dev->dev, "mtd%d: Removing\n", |
664 | dev->mtd_info->index); | |
599fb329 | 665 | map_destroy(dev->mtd_info); |
1da177e4 | 666 | } |
e2d40963 DB |
667 | |
668 | pcmciamtd_release(link); | |
1da177e4 LT |
669 | } |
670 | ||
671 | ||
15b99ac1 | 672 | static int pcmciamtd_probe(struct pcmcia_device *link) |
1da177e4 LT |
673 | { |
674 | struct pcmciamtd_dev *dev; | |
1da177e4 LT |
675 | |
676 | /* Create new memory card device */ | |
95b93a0c | 677 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
f8cfa618 | 678 | if (!dev) return -ENOMEM; |
e6453521 | 679 | pr_debug("dev=0x%p\n", dev); |
1da177e4 | 680 | |
fba395ee | 681 | dev->p_dev = link; |
1da177e4 LT |
682 | link->priv = dev; |
683 | ||
15b99ac1 | 684 | return pcmciamtd_config(link); |
1da177e4 LT |
685 | } |
686 | ||
25f8f54f | 687 | static const struct pcmcia_device_id pcmciamtd_ids[] = { |
11d28a30 DB |
688 | PCMCIA_DEVICE_FUNC_ID(1), |
689 | PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), | |
690 | PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), | |
691 | PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), | |
692 | PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), | |
693 | PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), | |
694 | PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), | |
695 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), | |
696 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), | |
697 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), | |
698 | PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), | |
699 | PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), | |
700 | PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), | |
f6763c98 | 701 | PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965), |
b2321ac3 | 702 | PCMCIA_DEVICE_PROD_ID12("PRETEC", " 2MB SRAM CARD", 0xebf91155, 0x805360ca), |
11d28a30 DB |
703 | PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), |
704 | PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), | |
f6763c98 | 705 | PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05), |
11d28a30 DB |
706 | PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), |
707 | PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), | |
708 | /* the following was commented out in pcmcia-cs-3.2.7 */ | |
709 | /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ | |
710 | #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS | |
711 | { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, | |
712 | #endif | |
713 | PCMCIA_DEVICE_NULL | |
714 | }; | |
715 | MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); | |
1da177e4 LT |
716 | |
717 | static struct pcmcia_driver pcmciamtd_driver = { | |
2e9b981a | 718 | .name = "pcmciamtd", |
15b99ac1 | 719 | .probe = pcmciamtd_probe, |
cc3b4866 | 720 | .remove = pcmciamtd_detach, |
11d28a30 DB |
721 | .owner = THIS_MODULE, |
722 | .id_table = pcmciamtd_ids, | |
98e4c28b DB |
723 | .suspend = pcmciamtd_suspend, |
724 | .resume = pcmciamtd_resume, | |
1da177e4 LT |
725 | }; |
726 | ||
727 | ||
728 | static int __init init_pcmciamtd(void) | |
729 | { | |
1da177e4 LT |
730 | if(bankwidth && bankwidth != 1 && bankwidth != 2) { |
731 | info("bad bankwidth (%d), using default", bankwidth); | |
732 | bankwidth = 2; | |
733 | } | |
734 | if(force_size && (force_size < 1 || force_size > 64)) { | |
735 | info("bad force_size (%d), using default", force_size); | |
736 | force_size = 0; | |
737 | } | |
738 | if(mem_type && mem_type != 1 && mem_type != 2) { | |
739 | info("bad mem_type (%d), using default", mem_type); | |
740 | mem_type = 0; | |
741 | } | |
742 | return pcmcia_register_driver(&pcmciamtd_driver); | |
743 | } | |
744 | ||
745 | ||
746 | static void __exit exit_pcmciamtd(void) | |
747 | { | |
e6453521 | 748 | pr_debug(DRIVER_DESC " unloading"); |
1da177e4 | 749 | pcmcia_unregister_driver(&pcmciamtd_driver); |
1da177e4 LT |
750 | } |
751 | ||
752 | module_init(init_pcmciamtd); | |
753 | module_exit(exit_pcmciamtd); |