This source file includes following definitions.
- kempld_get_hardware_mutex
- kempld_release_hardware_mutex
- kempld_get_info_generic
- kempld_register_cells_generic
- kempld_create_platform_device
- kempld_read8
- kempld_write8
- kempld_read16
- kempld_write16
- kempld_read32
- kempld_write32
- kempld_get_mutex
- kempld_release_mutex
- kempld_get_info
- kempld_register_cells
- kempld_get_type_string
- kempld_version_show
- kempld_specification_show
- kempld_type_show
- kempld_detect_device
- kempld_probe
- kempld_remove
- kempld_init
- kempld_exit
1
2
3
4
5
6
7
8
9 #include <linux/platform_device.h>
10 #include <linux/mfd/core.h>
11 #include <linux/mfd/kempld.h>
12 #include <linux/module.h>
13 #include <linux/dmi.h>
14 #include <linux/io.h>
15 #include <linux/delay.h>
16
17 #define MAX_ID_LEN 4
18 static char force_device_id[MAX_ID_LEN + 1] = "";
19 module_param_string(force_device_id, force_device_id,
20 sizeof(force_device_id), 0);
21 MODULE_PARM_DESC(force_device_id, "Override detected product");
22
23
24
25
26
27
28 static void kempld_get_hardware_mutex(struct kempld_device_data *pld)
29 {
30
31 while (ioread8(pld->io_index) & KEMPLD_MUTEX_KEY)
32 usleep_range(1000, 3000);
33 }
34
35 static void kempld_release_hardware_mutex(struct kempld_device_data *pld)
36 {
37
38 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
39 }
40
41 static int kempld_get_info_generic(struct kempld_device_data *pld)
42 {
43 u16 version;
44 u8 spec;
45
46 kempld_get_mutex(pld);
47
48 version = kempld_read16(pld, KEMPLD_VERSION);
49 spec = kempld_read8(pld, KEMPLD_SPEC);
50 pld->info.buildnr = kempld_read16(pld, KEMPLD_BUILDNR);
51
52 pld->info.minor = KEMPLD_VERSION_GET_MINOR(version);
53 pld->info.major = KEMPLD_VERSION_GET_MAJOR(version);
54 pld->info.number = KEMPLD_VERSION_GET_NUMBER(version);
55 pld->info.type = KEMPLD_VERSION_GET_TYPE(version);
56
57 if (spec == 0xff) {
58 pld->info.spec_minor = 0;
59 pld->info.spec_major = 1;
60 } else {
61 pld->info.spec_minor = KEMPLD_SPEC_GET_MINOR(spec);
62 pld->info.spec_major = KEMPLD_SPEC_GET_MAJOR(spec);
63 }
64
65 if (pld->info.spec_major > 0)
66 pld->feature_mask = kempld_read16(pld, KEMPLD_FEATURE);
67 else
68 pld->feature_mask = 0;
69
70 kempld_release_mutex(pld);
71
72 return 0;
73 }
74
75 enum kempld_cells {
76 KEMPLD_I2C = 0,
77 KEMPLD_WDT,
78 KEMPLD_GPIO,
79 KEMPLD_UART,
80 };
81
82 static const struct mfd_cell kempld_devs[] = {
83 [KEMPLD_I2C] = {
84 .name = "kempld-i2c",
85 },
86 [KEMPLD_WDT] = {
87 .name = "kempld-wdt",
88 },
89 [KEMPLD_GPIO] = {
90 .name = "kempld-gpio",
91 },
92 [KEMPLD_UART] = {
93 .name = "kempld-uart",
94 },
95 };
96
97 #define KEMPLD_MAX_DEVS ARRAY_SIZE(kempld_devs)
98
99 static int kempld_register_cells_generic(struct kempld_device_data *pld)
100 {
101 struct mfd_cell devs[KEMPLD_MAX_DEVS];
102 int i = 0;
103
104 if (pld->feature_mask & KEMPLD_FEATURE_BIT_I2C)
105 devs[i++] = kempld_devs[KEMPLD_I2C];
106
107 if (pld->feature_mask & KEMPLD_FEATURE_BIT_WATCHDOG)
108 devs[i++] = kempld_devs[KEMPLD_WDT];
109
110 if (pld->feature_mask & KEMPLD_FEATURE_BIT_GPIO)
111 devs[i++] = kempld_devs[KEMPLD_GPIO];
112
113 if (pld->feature_mask & KEMPLD_FEATURE_MASK_UART)
114 devs[i++] = kempld_devs[KEMPLD_UART];
115
116 return mfd_add_devices(pld->dev, -1, devs, i, NULL, 0, NULL);
117 }
118
119 static struct resource kempld_ioresource = {
120 .start = KEMPLD_IOINDEX,
121 .end = KEMPLD_IODATA,
122 .flags = IORESOURCE_IO,
123 };
124
125 static const struct kempld_platform_data kempld_platform_data_generic = {
126 .pld_clock = KEMPLD_CLK,
127 .ioresource = &kempld_ioresource,
128 .get_hardware_mutex = kempld_get_hardware_mutex,
129 .release_hardware_mutex = kempld_release_hardware_mutex,
130 .get_info = kempld_get_info_generic,
131 .register_cells = kempld_register_cells_generic,
132 };
133
134 static struct platform_device *kempld_pdev;
135
136 static int kempld_create_platform_device(const struct dmi_system_id *id)
137 {
138 const struct kempld_platform_data *pdata = id->driver_data;
139 int ret;
140
141 kempld_pdev = platform_device_alloc("kempld", -1);
142 if (!kempld_pdev)
143 return -ENOMEM;
144
145 ret = platform_device_add_data(kempld_pdev, pdata, sizeof(*pdata));
146 if (ret)
147 goto err;
148
149 ret = platform_device_add_resources(kempld_pdev, pdata->ioresource, 1);
150 if (ret)
151 goto err;
152
153 ret = platform_device_add(kempld_pdev);
154 if (ret)
155 goto err;
156
157 return 0;
158 err:
159 platform_device_put(kempld_pdev);
160 return ret;
161 }
162
163
164
165
166
167
168
169
170 u8 kempld_read8(struct kempld_device_data *pld, u8 index)
171 {
172 iowrite8(index, pld->io_index);
173 return ioread8(pld->io_data);
174 }
175 EXPORT_SYMBOL_GPL(kempld_read8);
176
177
178
179
180
181
182
183
184
185 void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data)
186 {
187 iowrite8(index, pld->io_index);
188 iowrite8(data, pld->io_data);
189 }
190 EXPORT_SYMBOL_GPL(kempld_write8);
191
192
193
194
195
196
197
198
199 u16 kempld_read16(struct kempld_device_data *pld, u8 index)
200 {
201 return kempld_read8(pld, index) | kempld_read8(pld, index + 1) << 8;
202 }
203 EXPORT_SYMBOL_GPL(kempld_read16);
204
205
206
207
208
209
210
211
212
213 void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data)
214 {
215 kempld_write8(pld, index, (u8)data);
216 kempld_write8(pld, index + 1, (u8)(data >> 8));
217 }
218 EXPORT_SYMBOL_GPL(kempld_write16);
219
220
221
222
223
224
225
226
227 u32 kempld_read32(struct kempld_device_data *pld, u8 index)
228 {
229 return kempld_read16(pld, index) | kempld_read16(pld, index + 2) << 16;
230 }
231 EXPORT_SYMBOL_GPL(kempld_read32);
232
233
234
235
236
237
238
239
240
241 void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data)
242 {
243 kempld_write16(pld, index, (u16)data);
244 kempld_write16(pld, index + 2, (u16)(data >> 16));
245 }
246 EXPORT_SYMBOL_GPL(kempld_write32);
247
248
249
250
251
252 void kempld_get_mutex(struct kempld_device_data *pld)
253 {
254 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
255
256 mutex_lock(&pld->lock);
257 pdata->get_hardware_mutex(pld);
258 }
259 EXPORT_SYMBOL_GPL(kempld_get_mutex);
260
261
262
263
264
265 void kempld_release_mutex(struct kempld_device_data *pld)
266 {
267 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
268
269 pdata->release_hardware_mutex(pld);
270 mutex_unlock(&pld->lock);
271 }
272 EXPORT_SYMBOL_GPL(kempld_release_mutex);
273
274
275
276
277
278
279
280
281
282 static int kempld_get_info(struct kempld_device_data *pld)
283 {
284 int ret;
285 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
286 char major, minor;
287
288 ret = pdata->get_info(pld);
289 if (ret)
290 return ret;
291
292
293
294
295
296
297
298
299
300 if (pld->info.major < 10)
301 major = pld->info.major + '0';
302 else
303 major = (pld->info.major - 10) + 'A';
304 if (pld->info.minor < 10)
305 minor = pld->info.minor + '0';
306 else
307 minor = (pld->info.minor - 10) + 'A';
308
309 ret = scnprintf(pld->info.version, sizeof(pld->info.version),
310 "P%X%c%c.%04X", pld->info.number, major, minor,
311 pld->info.buildnr);
312 if (ret < 0)
313 return ret;
314
315 return 0;
316 }
317
318
319
320
321
322
323
324
325 static int kempld_register_cells(struct kempld_device_data *pld)
326 {
327 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
328
329 return pdata->register_cells(pld);
330 }
331
332 static const char *kempld_get_type_string(struct kempld_device_data *pld)
333 {
334 const char *version_type;
335
336 switch (pld->info.type) {
337 case 0:
338 version_type = "release";
339 break;
340 case 1:
341 version_type = "debug";
342 break;
343 case 2:
344 version_type = "custom";
345 break;
346 default:
347 version_type = "unspecified";
348 break;
349 }
350
351 return version_type;
352 }
353
354 static ssize_t kempld_version_show(struct device *dev,
355 struct device_attribute *attr, char *buf)
356 {
357 struct kempld_device_data *pld = dev_get_drvdata(dev);
358
359 return scnprintf(buf, PAGE_SIZE, "%s\n", pld->info.version);
360 }
361
362 static ssize_t kempld_specification_show(struct device *dev,
363 struct device_attribute *attr, char *buf)
364 {
365 struct kempld_device_data *pld = dev_get_drvdata(dev);
366
367 return scnprintf(buf, PAGE_SIZE, "%d.%d\n", pld->info.spec_major,
368 pld->info.spec_minor);
369 }
370
371 static ssize_t kempld_type_show(struct device *dev,
372 struct device_attribute *attr, char *buf)
373 {
374 struct kempld_device_data *pld = dev_get_drvdata(dev);
375
376 return scnprintf(buf, PAGE_SIZE, "%s\n", kempld_get_type_string(pld));
377 }
378
379 static DEVICE_ATTR(pld_version, S_IRUGO, kempld_version_show, NULL);
380 static DEVICE_ATTR(pld_specification, S_IRUGO, kempld_specification_show,
381 NULL);
382 static DEVICE_ATTR(pld_type, S_IRUGO, kempld_type_show, NULL);
383
384 static struct attribute *pld_attributes[] = {
385 &dev_attr_pld_version.attr,
386 &dev_attr_pld_specification.attr,
387 &dev_attr_pld_type.attr,
388 NULL
389 };
390
391 static const struct attribute_group pld_attr_group = {
392 .attrs = pld_attributes,
393 };
394
395 static int kempld_detect_device(struct kempld_device_data *pld)
396 {
397 u8 index_reg;
398 int ret;
399
400 mutex_lock(&pld->lock);
401
402
403 index_reg = ioread8(pld->io_index);
404 if (index_reg == 0xff && ioread8(pld->io_data) == 0xff) {
405 mutex_unlock(&pld->lock);
406 return -ENODEV;
407 }
408
409
410 if (!(index_reg & KEMPLD_MUTEX_KEY)) {
411 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
412
413 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
414 }
415
416 mutex_unlock(&pld->lock);
417
418 ret = kempld_get_info(pld);
419 if (ret)
420 return ret;
421
422 dev_info(pld->dev, "Found Kontron PLD - %s (%s), spec %d.%d\n",
423 pld->info.version, kempld_get_type_string(pld),
424 pld->info.spec_major, pld->info.spec_minor);
425
426 ret = sysfs_create_group(&pld->dev->kobj, &pld_attr_group);
427 if (ret)
428 return ret;
429
430 ret = kempld_register_cells(pld);
431 if (ret)
432 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
433
434 return ret;
435 }
436
437 static int kempld_probe(struct platform_device *pdev)
438 {
439 const struct kempld_platform_data *pdata =
440 dev_get_platdata(&pdev->dev);
441 struct device *dev = &pdev->dev;
442 struct kempld_device_data *pld;
443 struct resource *ioport;
444
445 pld = devm_kzalloc(dev, sizeof(*pld), GFP_KERNEL);
446 if (!pld)
447 return -ENOMEM;
448
449 ioport = platform_get_resource(pdev, IORESOURCE_IO, 0);
450 if (!ioport)
451 return -EINVAL;
452
453 pld->io_base = devm_ioport_map(dev, ioport->start,
454 resource_size(ioport));
455 if (!pld->io_base)
456 return -ENOMEM;
457
458 pld->io_index = pld->io_base;
459 pld->io_data = pld->io_base + 1;
460 pld->pld_clock = pdata->pld_clock;
461 pld->dev = dev;
462
463 mutex_init(&pld->lock);
464 platform_set_drvdata(pdev, pld);
465
466 return kempld_detect_device(pld);
467 }
468
469 static int kempld_remove(struct platform_device *pdev)
470 {
471 struct kempld_device_data *pld = platform_get_drvdata(pdev);
472 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
473
474 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
475
476 mfd_remove_devices(&pdev->dev);
477 pdata->release_hardware_mutex(pld);
478
479 return 0;
480 }
481
482 static struct platform_driver kempld_driver = {
483 .driver = {
484 .name = "kempld",
485 },
486 .probe = kempld_probe,
487 .remove = kempld_remove,
488 };
489
490 static const struct dmi_system_id kempld_dmi_table[] __initconst = {
491 {
492 .ident = "BBD6",
493 .matches = {
494 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
495 DMI_MATCH(DMI_BOARD_NAME, "COMe-bBD"),
496 },
497 .driver_data = (void *)&kempld_platform_data_generic,
498 .callback = kempld_create_platform_device,
499 }, {
500 .ident = "BBL6",
501 .matches = {
502 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
503 DMI_MATCH(DMI_BOARD_NAME, "COMe-bBL6"),
504 },
505 .driver_data = (void *)&kempld_platform_data_generic,
506 .callback = kempld_create_platform_device,
507 }, {
508 .ident = "BHL6",
509 .matches = {
510 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
511 DMI_MATCH(DMI_BOARD_NAME, "COMe-bHL6"),
512 },
513 .driver_data = (void *)&kempld_platform_data_generic,
514 .callback = kempld_create_platform_device,
515 }, {
516 .ident = "BKL6",
517 .matches = {
518 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
519 DMI_MATCH(DMI_BOARD_NAME, "COMe-bKL6"),
520 },
521 .driver_data = (void *)&kempld_platform_data_generic,
522 .callback = kempld_create_platform_device,
523 }, {
524 .ident = "BSL6",
525 .matches = {
526 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
527 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSL6"),
528 },
529 .driver_data = (void *)&kempld_platform_data_generic,
530 .callback = kempld_create_platform_device,
531 }, {
532 .ident = "CAL6",
533 .matches = {
534 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
535 DMI_MATCH(DMI_BOARD_NAME, "COMe-cAL"),
536 },
537 .driver_data = (void *)&kempld_platform_data_generic,
538 .callback = kempld_create_platform_device,
539 }, {
540 .ident = "CBL6",
541 .matches = {
542 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
543 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBL6"),
544 },
545 .driver_data = (void *)&kempld_platform_data_generic,
546 .callback = kempld_create_platform_device,
547 }, {
548 .ident = "CBW6",
549 .matches = {
550 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
551 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBW6"),
552 },
553 .driver_data = (void *)&kempld_platform_data_generic,
554 .callback = kempld_create_platform_device,
555 }, {
556 .ident = "CCR2",
557 .matches = {
558 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
559 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP2"),
560 },
561 .driver_data = (void *)&kempld_platform_data_generic,
562 .callback = kempld_create_platform_device,
563 }, {
564 .ident = "CCR6",
565 .matches = {
566 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
567 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP6"),
568 },
569 .driver_data = (void *)&kempld_platform_data_generic,
570 .callback = kempld_create_platform_device,
571 }, {
572 .ident = "CHL6",
573 .matches = {
574 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
575 DMI_MATCH(DMI_BOARD_NAME, "COMe-cHL6"),
576 },
577 .driver_data = (void *)&kempld_platform_data_generic,
578 .callback = kempld_create_platform_device,
579 }, {
580 .ident = "CHR2",
581 .matches = {
582 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
583 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T2"),
584 },
585 .driver_data = (void *)&kempld_platform_data_generic,
586 .callback = kempld_create_platform_device,
587 }, {
588 .ident = "CHR2",
589 .matches = {
590 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
591 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T2"),
592 },
593 .driver_data = (void *)&kempld_platform_data_generic,
594 .callback = kempld_create_platform_device,
595 }, {
596 .ident = "CHR2",
597 .matches = {
598 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
599 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC2"),
600 },
601 .driver_data = (void *)&kempld_platform_data_generic,
602 .callback = kempld_create_platform_device,
603 }, {
604 .ident = "CHR6",
605 .matches = {
606 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
607 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T6"),
608 },
609 .driver_data = (void *)&kempld_platform_data_generic,
610 .callback = kempld_create_platform_device,
611 }, {
612 .ident = "CHR6",
613 .matches = {
614 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
615 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T6"),
616 },
617 .driver_data = (void *)&kempld_platform_data_generic,
618 .callback = kempld_create_platform_device,
619 }, {
620 .ident = "CHR6",
621 .matches = {
622 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
623 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC6"),
624 },
625 .driver_data = (void *)&kempld_platform_data_generic,
626 .callback = kempld_create_platform_device,
627 }, {
628 .ident = "CKL6",
629 .matches = {
630 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
631 DMI_MATCH(DMI_BOARD_NAME, "COMe-cKL6"),
632 },
633 .driver_data = (void *)&kempld_platform_data_generic,
634 .callback = kempld_create_platform_device,
635 }, {
636 .ident = "CNTG",
637 .matches = {
638 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
639 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-PC"),
640 },
641 .driver_data = (void *)&kempld_platform_data_generic,
642 .callback = kempld_create_platform_device,
643 }, {
644 .ident = "CNTG",
645 .matches = {
646 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
647 DMI_MATCH(DMI_BOARD_NAME, "COMe-bPC2"),
648 },
649 .driver_data = (void *)&kempld_platform_data_generic,
650 .callback = kempld_create_platform_device,
651 }, {
652 .ident = "CNTX",
653 .matches = {
654 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
655 DMI_MATCH(DMI_BOARD_NAME, "PXT"),
656 },
657 .driver_data = (void *)&kempld_platform_data_generic,
658 .callback = kempld_create_platform_device,
659 }, {
660 .ident = "CSL6",
661 .matches = {
662 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
663 DMI_MATCH(DMI_BOARD_NAME, "COMe-cSL6"),
664 },
665 .driver_data = (void *)&kempld_platform_data_generic,
666 .callback = kempld_create_platform_device,
667 }, {
668 .ident = "CVV6",
669 .matches = {
670 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
671 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBT"),
672 },
673 .driver_data = (void *)&kempld_platform_data_generic,
674 .callback = kempld_create_platform_device,
675 }, {
676 .ident = "FRI2",
677 .matches = {
678 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
679 DMI_MATCH(DMI_BIOS_VERSION, "FRI2"),
680 },
681 .driver_data = (void *)&kempld_platform_data_generic,
682 .callback = kempld_create_platform_device,
683 }, {
684 .ident = "FRI2",
685 .matches = {
686 DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"),
687 },
688 .driver_data = (void *)&kempld_platform_data_generic,
689 .callback = kempld_create_platform_device,
690 }, {
691 .ident = "MAL1",
692 .matches = {
693 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
694 DMI_MATCH(DMI_BOARD_NAME, "COMe-mAL10"),
695 },
696 .driver_data = (void *)&kempld_platform_data_generic,
697 .callback = kempld_create_platform_device,
698 }, {
699 .ident = "MBR1",
700 .matches = {
701 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
702 DMI_MATCH(DMI_BOARD_NAME, "ETX-OH"),
703 },
704 .driver_data = (void *)&kempld_platform_data_generic,
705 .callback = kempld_create_platform_device,
706 }, {
707 .ident = "MVV1",
708 .matches = {
709 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
710 DMI_MATCH(DMI_BOARD_NAME, "COMe-mBT"),
711 },
712 .driver_data = (void *)&kempld_platform_data_generic,
713 .callback = kempld_create_platform_device,
714 }, {
715 .ident = "NTC1",
716 .matches = {
717 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
718 DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"),
719 },
720 .driver_data = (void *)&kempld_platform_data_generic,
721 .callback = kempld_create_platform_device,
722 }, {
723 .ident = "NTC1",
724 .matches = {
725 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
726 DMI_MATCH(DMI_BOARD_NAME, "nETXe-TT"),
727 },
728 .driver_data = (void *)&kempld_platform_data_generic,
729 .callback = kempld_create_platform_device,
730 }, {
731 .ident = "NTC1",
732 .matches = {
733 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
734 DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"),
735 },
736 .driver_data = (void *)&kempld_platform_data_generic,
737 .callback = kempld_create_platform_device,
738 }, {
739 .ident = "NUP1",
740 .matches = {
741 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
742 DMI_MATCH(DMI_BOARD_NAME, "COMe-mCT"),
743 },
744 .driver_data = (void *)&kempld_platform_data_generic,
745 .callback = kempld_create_platform_device,
746 }, {
747 .ident = "UNP1",
748 .matches = {
749 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
750 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-DC"),
751 },
752 .driver_data = (void *)&kempld_platform_data_generic,
753 .callback = kempld_create_platform_device,
754 }, {
755 .ident = "UNP1",
756 .matches = {
757 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
758 DMI_MATCH(DMI_BOARD_NAME, "COMe-cDC2"),
759 },
760 .driver_data = (void *)&kempld_platform_data_generic,
761 .callback = kempld_create_platform_device,
762 }, {
763 .ident = "UNTG",
764 .matches = {
765 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
766 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-PC"),
767 },
768 .driver_data = (void *)&kempld_platform_data_generic,
769 .callback = kempld_create_platform_device,
770 }, {
771 .ident = "UNTG",
772 .matches = {
773 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
774 DMI_MATCH(DMI_BOARD_NAME, "COMe-cPC2"),
775 },
776 .driver_data = (void *)&kempld_platform_data_generic,
777 .callback = kempld_create_platform_device,
778 }, {
779 .ident = "UUP6",
780 .matches = {
781 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
782 DMI_MATCH(DMI_BOARD_NAME, "COMe-cCT6"),
783 },
784 .driver_data = (void *)&kempld_platform_data_generic,
785 .callback = kempld_create_platform_device,
786 },
787 {
788 .ident = "UTH6",
789 .matches = {
790 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
791 DMI_MATCH(DMI_BOARD_NAME, "COMe-cTH6"),
792 },
793 .driver_data = (void *)&kempld_platform_data_generic,
794 .callback = kempld_create_platform_device,
795 },
796 {}
797 };
798 MODULE_DEVICE_TABLE(dmi, kempld_dmi_table);
799
800 static int __init kempld_init(void)
801 {
802 const struct dmi_system_id *id;
803
804 if (force_device_id[0]) {
805 for (id = kempld_dmi_table;
806 id->matches[0].slot != DMI_NONE; id++)
807 if (strstr(id->ident, force_device_id))
808 if (id->callback && !id->callback(id))
809 break;
810 if (id->matches[0].slot == DMI_NONE)
811 return -ENODEV;
812 } else {
813 if (!dmi_check_system(kempld_dmi_table))
814 return -ENODEV;
815 }
816
817 return platform_driver_register(&kempld_driver);
818 }
819
820 static void __exit kempld_exit(void)
821 {
822 if (kempld_pdev)
823 platform_device_unregister(kempld_pdev);
824
825 platform_driver_unregister(&kempld_driver);
826 }
827
828 module_init(kempld_init);
829 module_exit(kempld_exit);
830
831 MODULE_DESCRIPTION("KEM PLD Core Driver");
832 MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>");
833 MODULE_LICENSE("GPL");
834 MODULE_ALIAS("platform:kempld-core");