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43620a17 KS |
1 | /* |
2 | * Kontron PLD MFD core driver | |
3 | * | |
4 | * Copyright (c) 2010-2013 Kontron Europe GmbH | |
5 | * Author: Michael Brunner <michael.brunner@kontron.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License 2 as published | |
9 | * by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | */ | |
16 | ||
17 | #include <linux/platform_device.h> | |
18 | #include <linux/mfd/core.h> | |
19 | #include <linux/mfd/kempld.h> | |
20 | #include <linux/module.h> | |
21 | #include <linux/dmi.h> | |
22 | #include <linux/io.h> | |
23 | #include <linux/delay.h> | |
24 | ||
25 | #define MAX_ID_LEN 4 | |
26 | static char force_device_id[MAX_ID_LEN + 1] = ""; | |
27 | module_param_string(force_device_id, force_device_id, sizeof(force_device_id), 0); | |
28 | MODULE_PARM_DESC(force_device_id, "Override detected product"); | |
29 | ||
30 | /* | |
31 | * Get hardware mutex to block firmware from accessing the pld. | |
32 | * It is possible for the firmware may hold the mutex for an extended length of | |
33 | * time. This function will block until access has been granted. | |
34 | */ | |
35 | static void kempld_get_hardware_mutex(struct kempld_device_data *pld) | |
36 | { | |
37 | /* The mutex bit will read 1 until access has been granted */ | |
38 | while (ioread8(pld->io_index) & KEMPLD_MUTEX_KEY) | |
39 | msleep(1); | |
40 | } | |
41 | ||
42 | static void kempld_release_hardware_mutex(struct kempld_device_data *pld) | |
43 | { | |
44 | /* The harware mutex is released when 1 is written to the mutex bit. */ | |
45 | iowrite8(KEMPLD_MUTEX_KEY, pld->io_index); | |
46 | } | |
47 | ||
48 | static int kempld_get_info_generic(struct kempld_device_data *pld) | |
49 | { | |
50 | u16 version; | |
51 | u8 spec; | |
52 | ||
53 | kempld_get_mutex(pld); | |
54 | ||
55 | version = kempld_read16(pld, KEMPLD_VERSION); | |
56 | spec = kempld_read8(pld, KEMPLD_SPEC); | |
57 | pld->info.buildnr = kempld_read16(pld, KEMPLD_BUILDNR); | |
58 | ||
59 | pld->info.minor = KEMPLD_VERSION_GET_MINOR(version); | |
60 | pld->info.major = KEMPLD_VERSION_GET_MAJOR(version); | |
61 | pld->info.number = KEMPLD_VERSION_GET_NUMBER(version); | |
62 | pld->info.type = KEMPLD_VERSION_GET_TYPE(version); | |
63 | ||
64 | if (spec == 0xff) { | |
65 | pld->info.spec_minor = 0; | |
66 | pld->info.spec_major = 1; | |
67 | } else { | |
68 | pld->info.spec_minor = KEMPLD_SPEC_GET_MINOR(spec); | |
69 | pld->info.spec_major = KEMPLD_SPEC_GET_MAJOR(spec); | |
70 | } | |
71 | ||
72 | if (pld->info.spec_major > 0) | |
73 | pld->feature_mask = kempld_read16(pld, KEMPLD_FEATURE); | |
74 | else | |
75 | pld->feature_mask = 0; | |
76 | ||
77 | kempld_release_mutex(pld); | |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
82 | enum kempld_cells { | |
83 | KEMPLD_I2C = 0, | |
84 | KEMPLD_WDT, | |
85 | KEMPLD_GPIO, | |
86 | KEMPLD_UART, | |
87 | }; | |
88 | ||
89 | static struct mfd_cell kempld_devs[] = { | |
90 | [KEMPLD_I2C] = { | |
91 | .name = "kempld-i2c", | |
92 | }, | |
93 | [KEMPLD_WDT] = { | |
94 | .name = "kempld-wdt", | |
95 | }, | |
96 | [KEMPLD_GPIO] = { | |
97 | .name = "kempld-gpio", | |
98 | }, | |
99 | [KEMPLD_UART] = { | |
100 | .name = "kempld-uart", | |
101 | }, | |
102 | }; | |
103 | ||
104 | #define KEMPLD_MAX_DEVS ARRAY_SIZE(kempld_devs) | |
105 | ||
106 | static int kempld_register_cells_generic(struct kempld_device_data *pld) | |
107 | { | |
108 | struct mfd_cell devs[KEMPLD_MAX_DEVS]; | |
109 | int i = 0; | |
110 | ||
111 | if (pld->feature_mask & KEMPLD_FEATURE_BIT_I2C) | |
112 | devs[i++] = kempld_devs[KEMPLD_I2C]; | |
113 | ||
114 | if (pld->feature_mask & KEMPLD_FEATURE_BIT_WATCHDOG) | |
115 | devs[i++] = kempld_devs[KEMPLD_WDT]; | |
116 | ||
117 | if (pld->feature_mask & KEMPLD_FEATURE_BIT_GPIO) | |
118 | devs[i++] = kempld_devs[KEMPLD_GPIO]; | |
119 | ||
120 | if (pld->feature_mask & KEMPLD_FEATURE_MASK_UART) | |
121 | devs[i++] = kempld_devs[KEMPLD_UART]; | |
122 | ||
123 | return mfd_add_devices(pld->dev, -1, devs, i, NULL, 0, NULL); | |
124 | } | |
125 | ||
126 | static struct resource kempld_ioresource = { | |
127 | .start = KEMPLD_IOINDEX, | |
128 | .end = KEMPLD_IODATA, | |
129 | .flags = IORESOURCE_IO, | |
130 | }; | |
131 | ||
132 | static const struct kempld_platform_data kempld_platform_data_generic = { | |
133 | .pld_clock = KEMPLD_CLK, | |
134 | .ioresource = &kempld_ioresource, | |
135 | .get_hardware_mutex = kempld_get_hardware_mutex, | |
136 | .release_hardware_mutex = kempld_release_hardware_mutex, | |
137 | .get_info = kempld_get_info_generic, | |
138 | .register_cells = kempld_register_cells_generic, | |
139 | }; | |
140 | ||
141 | static struct platform_device *kempld_pdev; | |
142 | ||
143 | static int kempld_create_platform_device(const struct dmi_system_id *id) | |
144 | { | |
145 | struct kempld_platform_data *pdata = id->driver_data; | |
146 | int ret; | |
147 | ||
148 | kempld_pdev = platform_device_alloc("kempld", -1); | |
149 | if (!kempld_pdev) | |
150 | return -ENOMEM; | |
151 | ||
152 | ret = platform_device_add_data(kempld_pdev, pdata, sizeof(*pdata)); | |
153 | if (ret) | |
154 | goto err; | |
155 | ||
156 | ret = platform_device_add_resources(kempld_pdev, pdata->ioresource, 1); | |
157 | if (ret) | |
158 | goto err; | |
159 | ||
160 | ret = platform_device_add(kempld_pdev); | |
161 | if (ret) | |
162 | goto err; | |
163 | ||
164 | return 0; | |
165 | err: | |
166 | platform_device_put(kempld_pdev); | |
167 | return ret; | |
168 | } | |
169 | ||
170 | /** | |
171 | * kempld_read8 - read 8 bit register | |
172 | * @pld: kempld_device_data structure describing the PLD | |
173 | * @index: register index on the chip | |
174 | * | |
175 | * kempld_get_mutex must be called prior to calling this function. | |
176 | */ | |
177 | u8 kempld_read8(struct kempld_device_data *pld, u8 index) | |
178 | { | |
179 | iowrite8(index, pld->io_index); | |
180 | return ioread8(pld->io_data); | |
181 | } | |
182 | EXPORT_SYMBOL_GPL(kempld_read8); | |
183 | ||
184 | /** | |
185 | * kempld_write8 - write 8 bit register | |
186 | * @pld: kempld_device_data structure describing the PLD | |
187 | * @index: register index on the chip | |
188 | * @data: new register value | |
189 | * | |
190 | * kempld_get_mutex must be called prior to calling this function. | |
191 | */ | |
192 | void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data) | |
193 | { | |
194 | iowrite8(index, pld->io_index); | |
195 | iowrite8(data, pld->io_data); | |
196 | } | |
197 | EXPORT_SYMBOL_GPL(kempld_write8); | |
198 | ||
199 | /** | |
200 | * kempld_read16 - read 16 bit register | |
201 | * @pld: kempld_device_data structure describing the PLD | |
202 | * @index: register index on the chip | |
203 | * | |
204 | * kempld_get_mutex must be called prior to calling this function. | |
205 | */ | |
206 | u16 kempld_read16(struct kempld_device_data *pld, u8 index) | |
207 | { | |
208 | return kempld_read8(pld, index) | kempld_read8(pld, index + 1) << 8; | |
209 | } | |
210 | EXPORT_SYMBOL_GPL(kempld_read16); | |
211 | ||
212 | /** | |
213 | * kempld_write16 - write 16 bit register | |
214 | * @pld: kempld_device_data structure describing the PLD | |
215 | * @index: register index on the chip | |
216 | * @data: new register value | |
217 | * | |
218 | * kempld_get_mutex must be called prior to calling this function. | |
219 | */ | |
220 | void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data) | |
221 | { | |
222 | kempld_write8(pld, index, (u8)data); | |
223 | kempld_write8(pld, index + 1, (u8)(data >> 8)); | |
224 | } | |
225 | EXPORT_SYMBOL_GPL(kempld_write16); | |
226 | ||
227 | /** | |
228 | * kempld_read32 - read 32 bit register | |
229 | * @pld: kempld_device_data structure describing the PLD | |
230 | * @index: register index on the chip | |
231 | * | |
232 | * kempld_get_mutex must be called prior to calling this function. | |
233 | */ | |
234 | u32 kempld_read32(struct kempld_device_data *pld, u8 index) | |
235 | { | |
236 | return kempld_read16(pld, index) | kempld_read16(pld, index + 2) << 16; | |
237 | } | |
238 | EXPORT_SYMBOL_GPL(kempld_read32); | |
239 | ||
240 | /** | |
241 | * kempld_write32 - write 32 bit register | |
242 | * @pld: kempld_device_data structure describing the PLD | |
243 | * @index: register index on the chip | |
244 | * @data: new register value | |
245 | * | |
246 | * kempld_get_mutex must be called prior to calling this function. | |
247 | */ | |
248 | void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data) | |
249 | { | |
250 | kempld_write16(pld, index, (u16)data); | |
251 | kempld_write16(pld, index + 2, (u16)(data >> 16)); | |
252 | } | |
253 | EXPORT_SYMBOL_GPL(kempld_write32); | |
254 | ||
255 | /** | |
256 | * kempld_get_mutex - acquire PLD mutex | |
257 | * @pld: kempld_device_data structure describing the PLD | |
258 | */ | |
259 | void kempld_get_mutex(struct kempld_device_data *pld) | |
260 | { | |
334a41ce | 261 | struct kempld_platform_data *pdata = dev_get_platdata(pld->dev); |
43620a17 KS |
262 | |
263 | mutex_lock(&pld->lock); | |
264 | pdata->get_hardware_mutex(pld); | |
265 | } | |
266 | EXPORT_SYMBOL_GPL(kempld_get_mutex); | |
267 | ||
268 | /** | |
269 | * kempld_release_mutex - release PLD mutex | |
270 | * @pld: kempld_device_data structure describing the PLD | |
271 | */ | |
272 | void kempld_release_mutex(struct kempld_device_data *pld) | |
273 | { | |
334a41ce | 274 | struct kempld_platform_data *pdata = dev_get_platdata(pld->dev); |
43620a17 KS |
275 | |
276 | pdata->release_hardware_mutex(pld); | |
277 | mutex_unlock(&pld->lock); | |
278 | } | |
279 | EXPORT_SYMBOL_GPL(kempld_release_mutex); | |
280 | ||
281 | /** | |
282 | * kempld_get_info - update device specific information | |
283 | * @pld: kempld_device_data structure describing the PLD | |
284 | * | |
285 | * This function calls the configured board specific kempld_get_info_XXXX | |
286 | * function which is responsible for gathering information about the specific | |
287 | * hardware. The information is then stored within the pld structure. | |
288 | */ | |
289 | static int kempld_get_info(struct kempld_device_data *pld) | |
290 | { | |
334a41ce | 291 | struct kempld_platform_data *pdata = dev_get_platdata(pld->dev); |
43620a17 KS |
292 | |
293 | return pdata->get_info(pld); | |
294 | } | |
295 | ||
296 | /* | |
297 | * kempld_register_cells - register cell drivers | |
298 | * | |
299 | * This function registers cell drivers for the detected hardware by calling | |
300 | * the configured kempld_register_cells_XXXX function which is responsible | |
301 | * to detect and register the needed cell drivers. | |
302 | */ | |
303 | static int kempld_register_cells(struct kempld_device_data *pld) | |
304 | { | |
334a41ce | 305 | struct kempld_platform_data *pdata = dev_get_platdata(pld->dev); |
43620a17 KS |
306 | |
307 | return pdata->register_cells(pld); | |
308 | } | |
309 | ||
310 | static int kempld_detect_device(struct kempld_device_data *pld) | |
311 | { | |
312 | char *version_type; | |
313 | u8 index_reg; | |
314 | int ret; | |
315 | ||
316 | mutex_lock(&pld->lock); | |
317 | ||
318 | /* Check for empty IO space */ | |
319 | index_reg = ioread8(pld->io_index); | |
320 | if (index_reg == 0xff && ioread8(pld->io_data) == 0xff) { | |
321 | mutex_unlock(&pld->lock); | |
322 | return -ENODEV; | |
323 | } | |
324 | ||
325 | /* Release hardware mutex if aquired */ | |
326 | if (!(index_reg & KEMPLD_MUTEX_KEY)) | |
327 | iowrite8(KEMPLD_MUTEX_KEY, pld->io_index); | |
328 | ||
329 | mutex_unlock(&pld->lock); | |
330 | ||
331 | ret = kempld_get_info(pld); | |
332 | if (ret) | |
333 | return ret; | |
334 | ||
335 | switch (pld->info.type) { | |
336 | case 0: | |
337 | version_type = "release"; | |
338 | break; | |
339 | case 1: | |
340 | version_type = "debug"; | |
341 | break; | |
342 | case 2: | |
343 | version_type = "custom"; | |
344 | break; | |
345 | default: | |
346 | version_type = "unspecified"; | |
347 | } | |
348 | ||
349 | dev_info(pld->dev, "Found Kontron PLD %d\n", pld->info.number); | |
350 | dev_info(pld->dev, "%s version %d.%d build %d, specification %d.%d\n", | |
351 | version_type, pld->info.major, pld->info.minor, | |
352 | pld->info.buildnr, pld->info.spec_major, | |
353 | pld->info.spec_minor); | |
354 | ||
355 | return kempld_register_cells(pld); | |
356 | } | |
357 | ||
358 | static int kempld_probe(struct platform_device *pdev) | |
359 | { | |
334a41ce | 360 | struct kempld_platform_data *pdata = dev_get_platdata(&pdev->dev); |
43620a17 KS |
361 | struct device *dev = &pdev->dev; |
362 | struct kempld_device_data *pld; | |
363 | struct resource *ioport; | |
364 | int ret; | |
365 | ||
366 | pld = devm_kzalloc(dev, sizeof(*pld), GFP_KERNEL); | |
367 | if (!pld) | |
368 | return -ENOMEM; | |
369 | ||
370 | ioport = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
371 | if (!ioport) | |
372 | return -EINVAL; | |
373 | ||
374 | pld->io_base = devm_ioport_map(dev, ioport->start, | |
375 | ioport->end - ioport->start); | |
376 | if (!pld->io_base) | |
377 | return -ENOMEM; | |
378 | ||
379 | pld->io_index = pld->io_base; | |
380 | pld->io_data = pld->io_base + 1; | |
381 | pld->pld_clock = pdata->pld_clock; | |
382 | pld->dev = dev; | |
383 | ||
384 | mutex_init(&pld->lock); | |
385 | platform_set_drvdata(pdev, pld); | |
386 | ||
387 | ret = kempld_detect_device(pld); | |
388 | if (ret) | |
389 | return ret; | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
394 | static int kempld_remove(struct platform_device *pdev) | |
395 | { | |
396 | struct kempld_device_data *pld = platform_get_drvdata(pdev); | |
334a41ce | 397 | struct kempld_platform_data *pdata = dev_get_platdata(pld->dev); |
43620a17 KS |
398 | |
399 | mfd_remove_devices(&pdev->dev); | |
400 | pdata->release_hardware_mutex(pld); | |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
405 | static struct platform_driver kempld_driver = { | |
406 | .driver = { | |
407 | .name = "kempld", | |
408 | .owner = THIS_MODULE, | |
409 | }, | |
410 | .probe = kempld_probe, | |
411 | .remove = kempld_remove, | |
412 | }; | |
413 | ||
414 | static struct dmi_system_id __initdata kempld_dmi_table[] = { | |
c1d33b1b MB |
415 | { |
416 | .ident = "BHL6", | |
417 | .matches = { | |
418 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
419 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bHL6"), | |
420 | }, | |
421 | .driver_data = (void *)&kempld_platform_data_generic, | |
422 | .callback = kempld_create_platform_device, | |
423 | }, | |
43620a17 KS |
424 | { |
425 | .ident = "CCR2", | |
426 | .matches = { | |
427 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
428 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP2"), | |
429 | }, | |
430 | .driver_data = (void *)&kempld_platform_data_generic, | |
431 | .callback = kempld_create_platform_device, | |
432 | }, { | |
433 | .ident = "CCR6", | |
434 | .matches = { | |
435 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
436 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP6"), | |
437 | }, | |
438 | .driver_data = (void *)&kempld_platform_data_generic, | |
439 | .callback = kempld_create_platform_device, | |
440 | }, { | |
441 | .ident = "CHR2", | |
442 | .matches = { | |
443 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
444 | DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T2"), | |
445 | }, | |
446 | .driver_data = (void *)&kempld_platform_data_generic, | |
447 | .callback = kempld_create_platform_device, | |
448 | }, { | |
449 | .ident = "CHR2", | |
450 | .matches = { | |
451 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
452 | DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T2"), | |
453 | }, | |
454 | .driver_data = (void *)&kempld_platform_data_generic, | |
455 | .callback = kempld_create_platform_device, | |
456 | }, { | |
457 | .ident = "CHR2", | |
458 | .matches = { | |
459 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
460 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC2"), | |
461 | }, | |
462 | .driver_data = (void *)&kempld_platform_data_generic, | |
463 | .callback = kempld_create_platform_device, | |
464 | }, { | |
465 | .ident = "CHR6", | |
466 | .matches = { | |
467 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
468 | DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T6"), | |
469 | }, | |
470 | .driver_data = (void *)&kempld_platform_data_generic, | |
471 | .callback = kempld_create_platform_device, | |
472 | }, { | |
473 | .ident = "CHR6", | |
474 | .matches = { | |
475 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
476 | DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T6"), | |
477 | }, | |
478 | .driver_data = (void *)&kempld_platform_data_generic, | |
479 | .callback = kempld_create_platform_device, | |
480 | }, { | |
481 | .ident = "CHR6", | |
482 | .matches = { | |
483 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
484 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC6"), | |
485 | }, | |
486 | .driver_data = (void *)&kempld_platform_data_generic, | |
487 | .callback = kempld_create_platform_device, | |
488 | }, { | |
489 | .ident = "CNTG", | |
490 | .matches = { | |
491 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
492 | DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-PC"), | |
493 | }, | |
494 | .driver_data = (void *)&kempld_platform_data_generic, | |
495 | .callback = kempld_create_platform_device, | |
496 | }, { | |
497 | .ident = "CNTG", | |
498 | .matches = { | |
499 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
500 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bPC2"), | |
501 | }, | |
502 | .driver_data = (void *)&kempld_platform_data_generic, | |
503 | .callback = kempld_create_platform_device, | |
504 | }, { | |
505 | .ident = "CNTX", | |
506 | .matches = { | |
507 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
508 | DMI_MATCH(DMI_BOARD_NAME, "PXT"), | |
509 | }, | |
510 | .driver_data = (void *)&kempld_platform_data_generic, | |
511 | .callback = kempld_create_platform_device, | |
512 | }, { | |
513 | .ident = "FRI2", | |
514 | .matches = { | |
515 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
516 | DMI_MATCH(DMI_BIOS_VERSION, "FRI2"), | |
517 | }, | |
518 | .driver_data = (void *)&kempld_platform_data_generic, | |
519 | .callback = kempld_create_platform_device, | |
520 | }, { | |
521 | .ident = "FRI2", | |
522 | .matches = { | |
523 | DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"), | |
524 | }, | |
525 | .driver_data = (void *)&kempld_platform_data_generic, | |
526 | .callback = kempld_create_platform_device, | |
527 | }, { | |
528 | .ident = "MBR1", | |
529 | .matches = { | |
530 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
531 | DMI_MATCH(DMI_BOARD_NAME, "ETX-OH"), | |
532 | }, | |
533 | .driver_data = (void *)&kempld_platform_data_generic, | |
534 | .callback = kempld_create_platform_device, | |
535 | }, { | |
536 | .ident = "NTC1", | |
537 | .matches = { | |
538 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
539 | DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"), | |
540 | }, | |
541 | .driver_data = (void *)&kempld_platform_data_generic, | |
542 | .callback = kempld_create_platform_device, | |
543 | }, { | |
544 | .ident = "NTC1", | |
545 | .matches = { | |
546 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
547 | DMI_MATCH(DMI_BOARD_NAME, "nETXe-TT"), | |
548 | }, | |
549 | .driver_data = (void *)&kempld_platform_data_generic, | |
550 | .callback = kempld_create_platform_device, | |
551 | }, { | |
552 | .ident = "NTC1", | |
553 | .matches = { | |
554 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
555 | DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"), | |
556 | }, | |
557 | .driver_data = (void *)&kempld_platform_data_generic, | |
558 | .callback = kempld_create_platform_device, | |
559 | }, { | |
560 | .ident = "NUP1", | |
561 | .matches = { | |
562 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
563 | DMI_MATCH(DMI_BOARD_NAME, "COMe-mCT"), | |
564 | }, | |
565 | .driver_data = (void *)&kempld_platform_data_generic, | |
566 | .callback = kempld_create_platform_device, | |
567 | }, { | |
568 | .ident = "UNP1", | |
569 | .matches = { | |
570 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
571 | DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-DC"), | |
572 | }, | |
573 | .driver_data = (void *)&kempld_platform_data_generic, | |
574 | .callback = kempld_create_platform_device, | |
575 | }, { | |
576 | .ident = "UNP1", | |
577 | .matches = { | |
578 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
579 | DMI_MATCH(DMI_BOARD_NAME, "COMe-cDC2"), | |
580 | }, | |
581 | .driver_data = (void *)&kempld_platform_data_generic, | |
582 | .callback = kempld_create_platform_device, | |
583 | }, { | |
584 | .ident = "UNTG", | |
585 | .matches = { | |
586 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
587 | DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-PC"), | |
588 | }, | |
589 | .driver_data = (void *)&kempld_platform_data_generic, | |
590 | .callback = kempld_create_platform_device, | |
591 | }, { | |
592 | .ident = "UNTG", | |
593 | .matches = { | |
594 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
595 | DMI_MATCH(DMI_BOARD_NAME, "COMe-cPC2"), | |
596 | }, | |
597 | .driver_data = (void *)&kempld_platform_data_generic, | |
598 | .callback = kempld_create_platform_device, | |
599 | }, { | |
600 | .ident = "UUP6", | |
601 | .matches = { | |
602 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
603 | DMI_MATCH(DMI_BOARD_NAME, "COMe-cCT6"), | |
604 | }, | |
605 | .driver_data = (void *)&kempld_platform_data_generic, | |
c1d33b1b MB |
606 | .callback = kempld_create_platform_device, |
607 | }, | |
608 | { | |
609 | .ident = "UTH6", | |
610 | .matches = { | |
611 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), | |
612 | DMI_MATCH(DMI_BOARD_NAME, "COMe-cTH6"), | |
613 | }, | |
614 | .driver_data = (void *)&kempld_platform_data_generic, | |
43620a17 KS |
615 | .callback = kempld_create_platform_device, |
616 | }, | |
617 | {} | |
618 | }; | |
619 | MODULE_DEVICE_TABLE(dmi, kempld_dmi_table); | |
620 | ||
621 | static int __init kempld_init(void) | |
622 | { | |
623 | const struct dmi_system_id *id; | |
624 | int ret; | |
625 | ||
626 | if (force_device_id[0]) { | |
627 | for (id = kempld_dmi_table; id->matches[0].slot != DMI_NONE; id++) | |
628 | if (strstr(id->ident, force_device_id)) | |
629 | if (id->callback && id->callback(id)) | |
630 | break; | |
631 | if (id->matches[0].slot == DMI_NONE) | |
632 | return -ENODEV; | |
633 | } else { | |
634 | if (!dmi_check_system(kempld_dmi_table)) | |
635 | return -ENODEV; | |
636 | } | |
637 | ||
638 | ret = platform_driver_register(&kempld_driver); | |
639 | if (ret) | |
640 | return ret; | |
641 | ||
642 | return 0; | |
643 | } | |
644 | ||
645 | static void __exit kempld_exit(void) | |
646 | { | |
647 | if (kempld_pdev) | |
648 | platform_device_unregister(kempld_pdev); | |
649 | ||
650 | platform_driver_unregister(&kempld_driver); | |
651 | } | |
652 | ||
653 | module_init(kempld_init); | |
654 | module_exit(kempld_exit); | |
655 | ||
656 | MODULE_DESCRIPTION("KEM PLD Core Driver"); | |
657 | MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>"); | |
658 | MODULE_LICENSE("GPL"); | |
659 | MODULE_ALIAS("platform:kempld-core"); |