Loading...
Note: File does not exist in v3.1.
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
26static char force_device_id[MAX_ID_LEN + 1] = "";
27module_param_string(force_device_id, force_device_id,
28 sizeof(force_device_id), 0);
29MODULE_PARM_DESC(force_device_id, "Override detected product");
30
31/*
32 * Get hardware mutex to block firmware from accessing the pld.
33 * It is possible for the firmware may hold the mutex for an extended length of
34 * time. This function will block until access has been granted.
35 */
36static void kempld_get_hardware_mutex(struct kempld_device_data *pld)
37{
38 /* The mutex bit will read 1 until access has been granted */
39 while (ioread8(pld->io_index) & KEMPLD_MUTEX_KEY)
40 usleep_range(1000, 3000);
41}
42
43static void kempld_release_hardware_mutex(struct kempld_device_data *pld)
44{
45 /* The harware mutex is released when 1 is written to the mutex bit. */
46 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
47}
48
49static int kempld_get_info_generic(struct kempld_device_data *pld)
50{
51 u16 version;
52 u8 spec;
53
54 kempld_get_mutex(pld);
55
56 version = kempld_read16(pld, KEMPLD_VERSION);
57 spec = kempld_read8(pld, KEMPLD_SPEC);
58 pld->info.buildnr = kempld_read16(pld, KEMPLD_BUILDNR);
59
60 pld->info.minor = KEMPLD_VERSION_GET_MINOR(version);
61 pld->info.major = KEMPLD_VERSION_GET_MAJOR(version);
62 pld->info.number = KEMPLD_VERSION_GET_NUMBER(version);
63 pld->info.type = KEMPLD_VERSION_GET_TYPE(version);
64
65 if (spec == 0xff) {
66 pld->info.spec_minor = 0;
67 pld->info.spec_major = 1;
68 } else {
69 pld->info.spec_minor = KEMPLD_SPEC_GET_MINOR(spec);
70 pld->info.spec_major = KEMPLD_SPEC_GET_MAJOR(spec);
71 }
72
73 if (pld->info.spec_major > 0)
74 pld->feature_mask = kempld_read16(pld, KEMPLD_FEATURE);
75 else
76 pld->feature_mask = 0;
77
78 kempld_release_mutex(pld);
79
80 return 0;
81}
82
83enum kempld_cells {
84 KEMPLD_I2C = 0,
85 KEMPLD_WDT,
86 KEMPLD_GPIO,
87 KEMPLD_UART,
88};
89
90static const struct mfd_cell kempld_devs[] = {
91 [KEMPLD_I2C] = {
92 .name = "kempld-i2c",
93 },
94 [KEMPLD_WDT] = {
95 .name = "kempld-wdt",
96 },
97 [KEMPLD_GPIO] = {
98 .name = "kempld-gpio",
99 },
100 [KEMPLD_UART] = {
101 .name = "kempld-uart",
102 },
103};
104
105#define KEMPLD_MAX_DEVS ARRAY_SIZE(kempld_devs)
106
107static int kempld_register_cells_generic(struct kempld_device_data *pld)
108{
109 struct mfd_cell devs[KEMPLD_MAX_DEVS];
110 int i = 0;
111
112 if (pld->feature_mask & KEMPLD_FEATURE_BIT_I2C)
113 devs[i++] = kempld_devs[KEMPLD_I2C];
114
115 if (pld->feature_mask & KEMPLD_FEATURE_BIT_WATCHDOG)
116 devs[i++] = kempld_devs[KEMPLD_WDT];
117
118 if (pld->feature_mask & KEMPLD_FEATURE_BIT_GPIO)
119 devs[i++] = kempld_devs[KEMPLD_GPIO];
120
121 if (pld->feature_mask & KEMPLD_FEATURE_MASK_UART)
122 devs[i++] = kempld_devs[KEMPLD_UART];
123
124 return mfd_add_devices(pld->dev, -1, devs, i, NULL, 0, NULL);
125}
126
127static struct resource kempld_ioresource = {
128 .start = KEMPLD_IOINDEX,
129 .end = KEMPLD_IODATA,
130 .flags = IORESOURCE_IO,
131};
132
133static const struct kempld_platform_data kempld_platform_data_generic = {
134 .pld_clock = KEMPLD_CLK,
135 .ioresource = &kempld_ioresource,
136 .get_hardware_mutex = kempld_get_hardware_mutex,
137 .release_hardware_mutex = kempld_release_hardware_mutex,
138 .get_info = kempld_get_info_generic,
139 .register_cells = kempld_register_cells_generic,
140};
141
142static struct platform_device *kempld_pdev;
143
144static int kempld_create_platform_device(const struct dmi_system_id *id)
145{
146 struct kempld_platform_data *pdata = id->driver_data;
147 int ret;
148
149 kempld_pdev = platform_device_alloc("kempld", -1);
150 if (!kempld_pdev)
151 return -ENOMEM;
152
153 ret = platform_device_add_data(kempld_pdev, pdata, sizeof(*pdata));
154 if (ret)
155 goto err;
156
157 ret = platform_device_add_resources(kempld_pdev, pdata->ioresource, 1);
158 if (ret)
159 goto err;
160
161 ret = platform_device_add(kempld_pdev);
162 if (ret)
163 goto err;
164
165 return 0;
166err:
167 platform_device_put(kempld_pdev);
168 return ret;
169}
170
171/**
172 * kempld_read8 - read 8 bit register
173 * @pld: kempld_device_data structure describing the PLD
174 * @index: register index on the chip
175 *
176 * kempld_get_mutex must be called prior to calling this function.
177 */
178u8 kempld_read8(struct kempld_device_data *pld, u8 index)
179{
180 iowrite8(index, pld->io_index);
181 return ioread8(pld->io_data);
182}
183EXPORT_SYMBOL_GPL(kempld_read8);
184
185/**
186 * kempld_write8 - write 8 bit register
187 * @pld: kempld_device_data structure describing the PLD
188 * @index: register index on the chip
189 * @data: new register value
190 *
191 * kempld_get_mutex must be called prior to calling this function.
192 */
193void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data)
194{
195 iowrite8(index, pld->io_index);
196 iowrite8(data, pld->io_data);
197}
198EXPORT_SYMBOL_GPL(kempld_write8);
199
200/**
201 * kempld_read16 - read 16 bit register
202 * @pld: kempld_device_data structure describing the PLD
203 * @index: register index on the chip
204 *
205 * kempld_get_mutex must be called prior to calling this function.
206 */
207u16 kempld_read16(struct kempld_device_data *pld, u8 index)
208{
209 return kempld_read8(pld, index) | kempld_read8(pld, index + 1) << 8;
210}
211EXPORT_SYMBOL_GPL(kempld_read16);
212
213/**
214 * kempld_write16 - write 16 bit register
215 * @pld: kempld_device_data structure describing the PLD
216 * @index: register index on the chip
217 * @data: new register value
218 *
219 * kempld_get_mutex must be called prior to calling this function.
220 */
221void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data)
222{
223 kempld_write8(pld, index, (u8)data);
224 kempld_write8(pld, index + 1, (u8)(data >> 8));
225}
226EXPORT_SYMBOL_GPL(kempld_write16);
227
228/**
229 * kempld_read32 - read 32 bit register
230 * @pld: kempld_device_data structure describing the PLD
231 * @index: register index on the chip
232 *
233 * kempld_get_mutex must be called prior to calling this function.
234 */
235u32 kempld_read32(struct kempld_device_data *pld, u8 index)
236{
237 return kempld_read16(pld, index) | kempld_read16(pld, index + 2) << 16;
238}
239EXPORT_SYMBOL_GPL(kempld_read32);
240
241/**
242 * kempld_write32 - write 32 bit register
243 * @pld: kempld_device_data structure describing the PLD
244 * @index: register index on the chip
245 * @data: new register value
246 *
247 * kempld_get_mutex must be called prior to calling this function.
248 */
249void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data)
250{
251 kempld_write16(pld, index, (u16)data);
252 kempld_write16(pld, index + 2, (u16)(data >> 16));
253}
254EXPORT_SYMBOL_GPL(kempld_write32);
255
256/**
257 * kempld_get_mutex - acquire PLD mutex
258 * @pld: kempld_device_data structure describing the PLD
259 */
260void kempld_get_mutex(struct kempld_device_data *pld)
261{
262 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
263
264 mutex_lock(&pld->lock);
265 pdata->get_hardware_mutex(pld);
266}
267EXPORT_SYMBOL_GPL(kempld_get_mutex);
268
269/**
270 * kempld_release_mutex - release PLD mutex
271 * @pld: kempld_device_data structure describing the PLD
272 */
273void kempld_release_mutex(struct kempld_device_data *pld)
274{
275 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
276
277 pdata->release_hardware_mutex(pld);
278 mutex_unlock(&pld->lock);
279}
280EXPORT_SYMBOL_GPL(kempld_release_mutex);
281
282/**
283 * kempld_get_info - update device specific information
284 * @pld: kempld_device_data structure describing the PLD
285 *
286 * This function calls the configured board specific kempld_get_info_XXXX
287 * function which is responsible for gathering information about the specific
288 * hardware. The information is then stored within the pld structure.
289 */
290static int kempld_get_info(struct kempld_device_data *pld)
291{
292 int ret;
293 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
294 char major, minor;
295
296 ret = pdata->get_info(pld);
297 if (ret)
298 return ret;
299
300 /* The Kontron PLD firmware version string has the following format:
301 * Pwxy.zzzz
302 * P: Fixed
303 * w: PLD number - 1 hex digit
304 * x: Major version - 1 alphanumerical digit (0-9A-V)
305 * y: Minor version - 1 alphanumerical digit (0-9A-V)
306 * zzzz: Build number - 4 zero padded hex digits */
307
308 if (pld->info.major < 10)
309 major = pld->info.major + '0';
310 else
311 major = (pld->info.major - 10) + 'A';
312 if (pld->info.minor < 10)
313 minor = pld->info.minor + '0';
314 else
315 minor = (pld->info.minor - 10) + 'A';
316
317 ret = scnprintf(pld->info.version, sizeof(pld->info.version),
318 "P%X%c%c.%04X", pld->info.number, major, minor,
319 pld->info.buildnr);
320 if (ret < 0)
321 return ret;
322
323 return 0;
324}
325
326/*
327 * kempld_register_cells - register cell drivers
328 *
329 * This function registers cell drivers for the detected hardware by calling
330 * the configured kempld_register_cells_XXXX function which is responsible
331 * to detect and register the needed cell drivers.
332 */
333static int kempld_register_cells(struct kempld_device_data *pld)
334{
335 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
336
337 return pdata->register_cells(pld);
338}
339
340static const char *kempld_get_type_string(struct kempld_device_data *pld)
341{
342 const char *version_type;
343
344 switch (pld->info.type) {
345 case 0:
346 version_type = "release";
347 break;
348 case 1:
349 version_type = "debug";
350 break;
351 case 2:
352 version_type = "custom";
353 break;
354 default:
355 version_type = "unspecified";
356 break;
357 }
358
359 return version_type;
360}
361
362static ssize_t kempld_version_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, "%s\n", pld->info.version);
368}
369
370static ssize_t kempld_specification_show(struct device *dev,
371 struct device_attribute *attr, char *buf)
372{
373 struct kempld_device_data *pld = dev_get_drvdata(dev);
374
375 return scnprintf(buf, PAGE_SIZE, "%d.%d\n", pld->info.spec_major,
376 pld->info.spec_minor);
377}
378
379static ssize_t kempld_type_show(struct device *dev,
380 struct device_attribute *attr, char *buf)
381{
382 struct kempld_device_data *pld = dev_get_drvdata(dev);
383
384 return scnprintf(buf, PAGE_SIZE, "%s\n", kempld_get_type_string(pld));
385}
386
387static DEVICE_ATTR(pld_version, S_IRUGO, kempld_version_show, NULL);
388static DEVICE_ATTR(pld_specification, S_IRUGO, kempld_specification_show,
389 NULL);
390static DEVICE_ATTR(pld_type, S_IRUGO, kempld_type_show, NULL);
391
392static struct attribute *pld_attributes[] = {
393 &dev_attr_pld_version.attr,
394 &dev_attr_pld_specification.attr,
395 &dev_attr_pld_type.attr,
396 NULL
397};
398
399static const struct attribute_group pld_attr_group = {
400 .attrs = pld_attributes,
401};
402
403static int kempld_detect_device(struct kempld_device_data *pld)
404{
405 u8 index_reg;
406 int ret;
407
408 mutex_lock(&pld->lock);
409
410 /* Check for empty IO space */
411 index_reg = ioread8(pld->io_index);
412 if (index_reg == 0xff && ioread8(pld->io_data) == 0xff) {
413 mutex_unlock(&pld->lock);
414 return -ENODEV;
415 }
416
417 /* Release hardware mutex if acquired */
418 if (!(index_reg & KEMPLD_MUTEX_KEY)) {
419 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
420 /* PXT and COMe-cPC2 boards may require a second release */
421 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
422 }
423
424 mutex_unlock(&pld->lock);
425
426 ret = kempld_get_info(pld);
427 if (ret)
428 return ret;
429
430 dev_info(pld->dev, "Found Kontron PLD - %s (%s), spec %d.%d\n",
431 pld->info.version, kempld_get_type_string(pld),
432 pld->info.spec_major, pld->info.spec_minor);
433
434 ret = sysfs_create_group(&pld->dev->kobj, &pld_attr_group);
435 if (ret)
436 return ret;
437
438 ret = kempld_register_cells(pld);
439 if (ret)
440 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
441
442 return ret;
443}
444
445static int kempld_probe(struct platform_device *pdev)
446{
447 struct kempld_platform_data *pdata = dev_get_platdata(&pdev->dev);
448 struct device *dev = &pdev->dev;
449 struct kempld_device_data *pld;
450 struct resource *ioport;
451
452 pld = devm_kzalloc(dev, sizeof(*pld), GFP_KERNEL);
453 if (!pld)
454 return -ENOMEM;
455
456 ioport = platform_get_resource(pdev, IORESOURCE_IO, 0);
457 if (!ioport)
458 return -EINVAL;
459
460 pld->io_base = devm_ioport_map(dev, ioport->start,
461 ioport->end - ioport->start);
462 if (!pld->io_base)
463 return -ENOMEM;
464
465 pld->io_index = pld->io_base;
466 pld->io_data = pld->io_base + 1;
467 pld->pld_clock = pdata->pld_clock;
468 pld->dev = dev;
469
470 mutex_init(&pld->lock);
471 platform_set_drvdata(pdev, pld);
472
473 return kempld_detect_device(pld);
474}
475
476static int kempld_remove(struct platform_device *pdev)
477{
478 struct kempld_device_data *pld = platform_get_drvdata(pdev);
479 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
480
481 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
482
483 mfd_remove_devices(&pdev->dev);
484 pdata->release_hardware_mutex(pld);
485
486 return 0;
487}
488
489static struct platform_driver kempld_driver = {
490 .driver = {
491 .name = "kempld",
492 },
493 .probe = kempld_probe,
494 .remove = kempld_remove,
495};
496
497static struct dmi_system_id kempld_dmi_table[] __initdata = {
498 {
499 .ident = "BBL6",
500 .matches = {
501 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
502 DMI_MATCH(DMI_BOARD_NAME, "COMe-bBL6"),
503 },
504 .driver_data = (void *)&kempld_platform_data_generic,
505 .callback = kempld_create_platform_device,
506 }, {
507 .ident = "BHL6",
508 .matches = {
509 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
510 DMI_MATCH(DMI_BOARD_NAME, "COMe-bHL6"),
511 },
512 .driver_data = (void *)&kempld_platform_data_generic,
513 .callback = kempld_create_platform_device,
514 }, {
515 .ident = "CBL6",
516 .matches = {
517 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
518 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBL6"),
519 },
520 .driver_data = (void *)&kempld_platform_data_generic,
521 .callback = kempld_create_platform_device,
522 }, {
523 .ident = "CBW6",
524 .matches = {
525 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
526 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBW6"),
527 },
528 .driver_data = (void *)&kempld_platform_data_generic,
529 .callback = kempld_create_platform_device,
530 }, {
531 .ident = "CCR2",
532 .matches = {
533 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
534 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP2"),
535 },
536 .driver_data = (void *)&kempld_platform_data_generic,
537 .callback = kempld_create_platform_device,
538 }, {
539 .ident = "CCR6",
540 .matches = {
541 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
542 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP6"),
543 },
544 .driver_data = (void *)&kempld_platform_data_generic,
545 .callback = kempld_create_platform_device,
546 }, {
547 .ident = "CHL6",
548 .matches = {
549 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
550 DMI_MATCH(DMI_BOARD_NAME, "COMe-cHL6"),
551 },
552 .driver_data = (void *)&kempld_platform_data_generic,
553 .callback = kempld_create_platform_device,
554 }, {
555 .ident = "CHR2",
556 .matches = {
557 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
558 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T2"),
559 },
560 .driver_data = (void *)&kempld_platform_data_generic,
561 .callback = kempld_create_platform_device,
562 }, {
563 .ident = "CHR2",
564 .matches = {
565 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
566 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T2"),
567 },
568 .driver_data = (void *)&kempld_platform_data_generic,
569 .callback = kempld_create_platform_device,
570 }, {
571 .ident = "CHR2",
572 .matches = {
573 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
574 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC2"),
575 },
576 .driver_data = (void *)&kempld_platform_data_generic,
577 .callback = kempld_create_platform_device,
578 }, {
579 .ident = "CHR6",
580 .matches = {
581 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
582 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T6"),
583 },
584 .driver_data = (void *)&kempld_platform_data_generic,
585 .callback = kempld_create_platform_device,
586 }, {
587 .ident = "CHR6",
588 .matches = {
589 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
590 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T6"),
591 },
592 .driver_data = (void *)&kempld_platform_data_generic,
593 .callback = kempld_create_platform_device,
594 }, {
595 .ident = "CHR6",
596 .matches = {
597 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
598 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC6"),
599 },
600 .driver_data = (void *)&kempld_platform_data_generic,
601 .callback = kempld_create_platform_device,
602 }, {
603 .ident = "CNTG",
604 .matches = {
605 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
606 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-PC"),
607 },
608 .driver_data = (void *)&kempld_platform_data_generic,
609 .callback = kempld_create_platform_device,
610 }, {
611 .ident = "CNTG",
612 .matches = {
613 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
614 DMI_MATCH(DMI_BOARD_NAME, "COMe-bPC2"),
615 },
616 .driver_data = (void *)&kempld_platform_data_generic,
617 .callback = kempld_create_platform_device,
618 }, {
619 .ident = "CNTX",
620 .matches = {
621 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
622 DMI_MATCH(DMI_BOARD_NAME, "PXT"),
623 },
624 .driver_data = (void *)&kempld_platform_data_generic,
625 .callback = kempld_create_platform_device,
626 }, {
627 .ident = "CSL6",
628 .matches = {
629 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
630 DMI_MATCH(DMI_BOARD_NAME, "COMe-cSL6"),
631 },
632 .driver_data = (void *)&kempld_platform_data_generic,
633 .callback = kempld_create_platform_device,
634 }, {
635 .ident = "CVV6",
636 .matches = {
637 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
638 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBT"),
639 },
640 .driver_data = (void *)&kempld_platform_data_generic,
641 .callback = kempld_create_platform_device,
642 }, {
643 .ident = "FRI2",
644 .matches = {
645 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
646 DMI_MATCH(DMI_BIOS_VERSION, "FRI2"),
647 },
648 .driver_data = (void *)&kempld_platform_data_generic,
649 .callback = kempld_create_platform_device,
650 }, {
651 .ident = "FRI2",
652 .matches = {
653 DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"),
654 },
655 .driver_data = (void *)&kempld_platform_data_generic,
656 .callback = kempld_create_platform_device,
657 }, {
658 .ident = "MAL1",
659 .matches = {
660 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
661 DMI_MATCH(DMI_BOARD_NAME, "COMe-mAL10"),
662 },
663 .driver_data = (void *)&kempld_platform_data_generic,
664 .callback = kempld_create_platform_device,
665 }, {
666 .ident = "MBR1",
667 .matches = {
668 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
669 DMI_MATCH(DMI_BOARD_NAME, "ETX-OH"),
670 },
671 .driver_data = (void *)&kempld_platform_data_generic,
672 .callback = kempld_create_platform_device,
673 }, {
674 .ident = "MVV1",
675 .matches = {
676 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
677 DMI_MATCH(DMI_BOARD_NAME, "COMe-mBT"),
678 },
679 .driver_data = (void *)&kempld_platform_data_generic,
680 .callback = kempld_create_platform_device,
681 }, {
682 .ident = "NTC1",
683 .matches = {
684 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
685 DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"),
686 },
687 .driver_data = (void *)&kempld_platform_data_generic,
688 .callback = kempld_create_platform_device,
689 }, {
690 .ident = "NTC1",
691 .matches = {
692 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
693 DMI_MATCH(DMI_BOARD_NAME, "nETXe-TT"),
694 },
695 .driver_data = (void *)&kempld_platform_data_generic,
696 .callback = kempld_create_platform_device,
697 }, {
698 .ident = "NTC1",
699 .matches = {
700 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
701 DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"),
702 },
703 .driver_data = (void *)&kempld_platform_data_generic,
704 .callback = kempld_create_platform_device,
705 }, {
706 .ident = "NUP1",
707 .matches = {
708 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
709 DMI_MATCH(DMI_BOARD_NAME, "COMe-mCT"),
710 },
711 .driver_data = (void *)&kempld_platform_data_generic,
712 .callback = kempld_create_platform_device,
713 }, {
714 .ident = "UNP1",
715 .matches = {
716 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
717 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-DC"),
718 },
719 .driver_data = (void *)&kempld_platform_data_generic,
720 .callback = kempld_create_platform_device,
721 }, {
722 .ident = "UNP1",
723 .matches = {
724 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
725 DMI_MATCH(DMI_BOARD_NAME, "COMe-cDC2"),
726 },
727 .driver_data = (void *)&kempld_platform_data_generic,
728 .callback = kempld_create_platform_device,
729 }, {
730 .ident = "UNTG",
731 .matches = {
732 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
733 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-PC"),
734 },
735 .driver_data = (void *)&kempld_platform_data_generic,
736 .callback = kempld_create_platform_device,
737 }, {
738 .ident = "UNTG",
739 .matches = {
740 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
741 DMI_MATCH(DMI_BOARD_NAME, "COMe-cPC2"),
742 },
743 .driver_data = (void *)&kempld_platform_data_generic,
744 .callback = kempld_create_platform_device,
745 }, {
746 .ident = "UUP6",
747 .matches = {
748 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
749 DMI_MATCH(DMI_BOARD_NAME, "COMe-cCT6"),
750 },
751 .driver_data = (void *)&kempld_platform_data_generic,
752 .callback = kempld_create_platform_device,
753 },
754 {
755 .ident = "UTH6",
756 .matches = {
757 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
758 DMI_MATCH(DMI_BOARD_NAME, "COMe-cTH6"),
759 },
760 .driver_data = (void *)&kempld_platform_data_generic,
761 .callback = kempld_create_platform_device,
762 },
763 {}
764};
765MODULE_DEVICE_TABLE(dmi, kempld_dmi_table);
766
767static int __init kempld_init(void)
768{
769 const struct dmi_system_id *id;
770
771 if (force_device_id[0]) {
772 for (id = kempld_dmi_table;
773 id->matches[0].slot != DMI_NONE; id++)
774 if (strstr(id->ident, force_device_id))
775 if (id->callback && !id->callback(id))
776 break;
777 if (id->matches[0].slot == DMI_NONE)
778 return -ENODEV;
779 } else {
780 if (!dmi_check_system(kempld_dmi_table))
781 return -ENODEV;
782 }
783
784 return platform_driver_register(&kempld_driver);
785}
786
787static void __exit kempld_exit(void)
788{
789 if (kempld_pdev)
790 platform_device_unregister(kempld_pdev);
791
792 platform_driver_unregister(&kempld_driver);
793}
794
795module_init(kempld_init);
796module_exit(kempld_exit);
797
798MODULE_DESCRIPTION("KEM PLD Core Driver");
799MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>");
800MODULE_LICENSE("GPL");
801MODULE_ALIAS("platform:kempld-core");