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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Kontron PLD MFD core driver
4 *
5 * Copyright (c) 2010-2013 Kontron Europe GmbH
6 * Author: Michael Brunner <michael.brunner@kontron.com>
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#include <linux/acpi.h>
17
18#define MAX_ID_LEN 4
19static char force_device_id[MAX_ID_LEN + 1] = "";
20module_param_string(force_device_id, force_device_id,
21 sizeof(force_device_id), 0);
22MODULE_PARM_DESC(force_device_id, "Override detected product");
23
24/*
25 * Get hardware mutex to block firmware from accessing the pld.
26 * It is possible for the firmware may hold the mutex for an extended length of
27 * time. This function will block until access has been granted.
28 */
29static void kempld_get_hardware_mutex(struct kempld_device_data *pld)
30{
31 /* The mutex bit will read 1 until access has been granted */
32 while (ioread8(pld->io_index) & KEMPLD_MUTEX_KEY)
33 usleep_range(1000, 3000);
34}
35
36static void kempld_release_hardware_mutex(struct kempld_device_data *pld)
37{
38 /* The harware mutex is released when 1 is written to the mutex bit. */
39 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
40}
41
42static int kempld_get_info_generic(struct kempld_device_data *pld)
43{
44 u16 version;
45 u8 spec;
46
47 kempld_get_mutex(pld);
48
49 version = kempld_read16(pld, KEMPLD_VERSION);
50 spec = kempld_read8(pld, KEMPLD_SPEC);
51 pld->info.buildnr = kempld_read16(pld, KEMPLD_BUILDNR);
52
53 pld->info.minor = KEMPLD_VERSION_GET_MINOR(version);
54 pld->info.major = KEMPLD_VERSION_GET_MAJOR(version);
55 pld->info.number = KEMPLD_VERSION_GET_NUMBER(version);
56 pld->info.type = KEMPLD_VERSION_GET_TYPE(version);
57
58 if (spec == 0xff) {
59 pld->info.spec_minor = 0;
60 pld->info.spec_major = 1;
61 } else {
62 pld->info.spec_minor = KEMPLD_SPEC_GET_MINOR(spec);
63 pld->info.spec_major = KEMPLD_SPEC_GET_MAJOR(spec);
64 }
65
66 if (pld->info.spec_major > 0)
67 pld->feature_mask = kempld_read16(pld, KEMPLD_FEATURE);
68 else
69 pld->feature_mask = 0;
70
71 kempld_release_mutex(pld);
72
73 return 0;
74}
75
76enum kempld_cells {
77 KEMPLD_I2C = 0,
78 KEMPLD_WDT,
79 KEMPLD_GPIO,
80 KEMPLD_UART,
81};
82
83static const char *kempld_dev_names[] = {
84 [KEMPLD_I2C] = "kempld-i2c",
85 [KEMPLD_WDT] = "kempld-wdt",
86 [KEMPLD_GPIO] = "kempld-gpio",
87 [KEMPLD_UART] = "kempld-uart",
88};
89
90#define KEMPLD_MAX_DEVS ARRAY_SIZE(kempld_dev_names)
91
92static int kempld_register_cells_generic(struct kempld_device_data *pld)
93{
94 struct mfd_cell devs[KEMPLD_MAX_DEVS] = {};
95 int i = 0;
96
97 if (pld->feature_mask & KEMPLD_FEATURE_BIT_I2C)
98 devs[i++].name = kempld_dev_names[KEMPLD_I2C];
99
100 if (pld->feature_mask & KEMPLD_FEATURE_BIT_WATCHDOG)
101 devs[i++].name = kempld_dev_names[KEMPLD_WDT];
102
103 if (pld->feature_mask & KEMPLD_FEATURE_BIT_GPIO)
104 devs[i++].name = kempld_dev_names[KEMPLD_GPIO];
105
106 if (pld->feature_mask & KEMPLD_FEATURE_MASK_UART)
107 devs[i++].name = kempld_dev_names[KEMPLD_UART];
108
109 return mfd_add_devices(pld->dev, -1, devs, i, NULL, 0, NULL);
110}
111
112static struct resource kempld_ioresource = {
113 .start = KEMPLD_IOINDEX,
114 .end = KEMPLD_IODATA,
115 .flags = IORESOURCE_IO,
116};
117
118static const struct kempld_platform_data kempld_platform_data_generic = {
119 .pld_clock = KEMPLD_CLK,
120 .ioresource = &kempld_ioresource,
121 .get_hardware_mutex = kempld_get_hardware_mutex,
122 .release_hardware_mutex = kempld_release_hardware_mutex,
123 .get_info = kempld_get_info_generic,
124 .register_cells = kempld_register_cells_generic,
125};
126
127static struct platform_device *kempld_pdev;
128
129static int kempld_create_platform_device(const struct dmi_system_id *id)
130{
131 const struct kempld_platform_data *pdata = id->driver_data;
132 int ret;
133
134 kempld_pdev = platform_device_alloc("kempld", -1);
135 if (!kempld_pdev)
136 return -ENOMEM;
137
138 ret = platform_device_add_data(kempld_pdev, pdata, sizeof(*pdata));
139 if (ret)
140 goto err;
141
142 ret = platform_device_add_resources(kempld_pdev, pdata->ioresource, 1);
143 if (ret)
144 goto err;
145
146 ret = platform_device_add(kempld_pdev);
147 if (ret)
148 goto err;
149
150 return 0;
151err:
152 platform_device_put(kempld_pdev);
153 return ret;
154}
155
156/**
157 * kempld_read8 - read 8 bit register
158 * @pld: kempld_device_data structure describing the PLD
159 * @index: register index on the chip
160 *
161 * kempld_get_mutex must be called prior to calling this function.
162 */
163u8 kempld_read8(struct kempld_device_data *pld, u8 index)
164{
165 iowrite8(index, pld->io_index);
166 return ioread8(pld->io_data);
167}
168EXPORT_SYMBOL_GPL(kempld_read8);
169
170/**
171 * kempld_write8 - write 8 bit register
172 * @pld: kempld_device_data structure describing the PLD
173 * @index: register index on the chip
174 * @data: new register value
175 *
176 * kempld_get_mutex must be called prior to calling this function.
177 */
178void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data)
179{
180 iowrite8(index, pld->io_index);
181 iowrite8(data, pld->io_data);
182}
183EXPORT_SYMBOL_GPL(kempld_write8);
184
185/**
186 * kempld_read16 - read 16 bit register
187 * @pld: kempld_device_data structure describing the PLD
188 * @index: register index on the chip
189 *
190 * kempld_get_mutex must be called prior to calling this function.
191 */
192u16 kempld_read16(struct kempld_device_data *pld, u8 index)
193{
194 return kempld_read8(pld, index) | kempld_read8(pld, index + 1) << 8;
195}
196EXPORT_SYMBOL_GPL(kempld_read16);
197
198/**
199 * kempld_write16 - write 16 bit register
200 * @pld: kempld_device_data structure describing the PLD
201 * @index: register index on the chip
202 * @data: new register value
203 *
204 * kempld_get_mutex must be called prior to calling this function.
205 */
206void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data)
207{
208 kempld_write8(pld, index, (u8)data);
209 kempld_write8(pld, index + 1, (u8)(data >> 8));
210}
211EXPORT_SYMBOL_GPL(kempld_write16);
212
213/**
214 * kempld_read32 - read 32 bit register
215 * @pld: kempld_device_data structure describing the PLD
216 * @index: register index on the chip
217 *
218 * kempld_get_mutex must be called prior to calling this function.
219 */
220u32 kempld_read32(struct kempld_device_data *pld, u8 index)
221{
222 return kempld_read16(pld, index) | kempld_read16(pld, index + 2) << 16;
223}
224EXPORT_SYMBOL_GPL(kempld_read32);
225
226/**
227 * kempld_write32 - write 32 bit register
228 * @pld: kempld_device_data structure describing the PLD
229 * @index: register index on the chip
230 * @data: new register value
231 *
232 * kempld_get_mutex must be called prior to calling this function.
233 */
234void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data)
235{
236 kempld_write16(pld, index, (u16)data);
237 kempld_write16(pld, index + 2, (u16)(data >> 16));
238}
239EXPORT_SYMBOL_GPL(kempld_write32);
240
241/**
242 * kempld_get_mutex - acquire PLD mutex
243 * @pld: kempld_device_data structure describing the PLD
244 */
245void kempld_get_mutex(struct kempld_device_data *pld)
246{
247 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
248
249 mutex_lock(&pld->lock);
250 pdata->get_hardware_mutex(pld);
251}
252EXPORT_SYMBOL_GPL(kempld_get_mutex);
253
254/**
255 * kempld_release_mutex - release PLD mutex
256 * @pld: kempld_device_data structure describing the PLD
257 */
258void kempld_release_mutex(struct kempld_device_data *pld)
259{
260 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
261
262 pdata->release_hardware_mutex(pld);
263 mutex_unlock(&pld->lock);
264}
265EXPORT_SYMBOL_GPL(kempld_release_mutex);
266
267/**
268 * kempld_get_info - update device specific information
269 * @pld: kempld_device_data structure describing the PLD
270 *
271 * This function calls the configured board specific kempld_get_info_XXXX
272 * function which is responsible for gathering information about the specific
273 * hardware. The information is then stored within the pld structure.
274 */
275static int kempld_get_info(struct kempld_device_data *pld)
276{
277 int ret;
278 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
279 char major, minor;
280
281 ret = pdata->get_info(pld);
282 if (ret)
283 return ret;
284
285 /* The Kontron PLD firmware version string has the following format:
286 * Pwxy.zzzz
287 * P: Fixed
288 * w: PLD number - 1 hex digit
289 * x: Major version - 1 alphanumerical digit (0-9A-V)
290 * y: Minor version - 1 alphanumerical digit (0-9A-V)
291 * zzzz: Build number - 4 zero padded hex digits */
292
293 if (pld->info.major < 10)
294 major = pld->info.major + '0';
295 else
296 major = (pld->info.major - 10) + 'A';
297 if (pld->info.minor < 10)
298 minor = pld->info.minor + '0';
299 else
300 minor = (pld->info.minor - 10) + 'A';
301
302 ret = scnprintf(pld->info.version, sizeof(pld->info.version),
303 "P%X%c%c.%04X", pld->info.number, major, minor,
304 pld->info.buildnr);
305 if (ret < 0)
306 return ret;
307
308 return 0;
309}
310
311/*
312 * kempld_register_cells - register cell drivers
313 *
314 * This function registers cell drivers for the detected hardware by calling
315 * the configured kempld_register_cells_XXXX function which is responsible
316 * to detect and register the needed cell drivers.
317 */
318static int kempld_register_cells(struct kempld_device_data *pld)
319{
320 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
321
322 return pdata->register_cells(pld);
323}
324
325static const char *kempld_get_type_string(struct kempld_device_data *pld)
326{
327 const char *version_type;
328
329 switch (pld->info.type) {
330 case 0:
331 version_type = "release";
332 break;
333 case 1:
334 version_type = "debug";
335 break;
336 case 2:
337 version_type = "custom";
338 break;
339 default:
340 version_type = "unspecified";
341 break;
342 }
343
344 return version_type;
345}
346
347static ssize_t pld_version_show(struct device *dev,
348 struct device_attribute *attr, char *buf)
349{
350 struct kempld_device_data *pld = dev_get_drvdata(dev);
351
352 return scnprintf(buf, PAGE_SIZE, "%s\n", pld->info.version);
353}
354
355static ssize_t pld_specification_show(struct device *dev,
356 struct device_attribute *attr, char *buf)
357{
358 struct kempld_device_data *pld = dev_get_drvdata(dev);
359
360 return scnprintf(buf, PAGE_SIZE, "%d.%d\n", pld->info.spec_major,
361 pld->info.spec_minor);
362}
363
364static ssize_t pld_type_show(struct device *dev,
365 struct device_attribute *attr, char *buf)
366{
367 struct kempld_device_data *pld = dev_get_drvdata(dev);
368
369 return scnprintf(buf, PAGE_SIZE, "%s\n", kempld_get_type_string(pld));
370}
371
372static DEVICE_ATTR_RO(pld_version);
373static DEVICE_ATTR_RO(pld_specification);
374static DEVICE_ATTR_RO(pld_type);
375
376static struct attribute *pld_attributes[] = {
377 &dev_attr_pld_version.attr,
378 &dev_attr_pld_specification.attr,
379 &dev_attr_pld_type.attr,
380 NULL
381};
382
383static const struct attribute_group pld_attr_group = {
384 .attrs = pld_attributes,
385};
386
387static int kempld_detect_device(struct kempld_device_data *pld)
388{
389 u8 index_reg;
390 int ret;
391
392 mutex_lock(&pld->lock);
393
394 /* Check for empty IO space */
395 index_reg = ioread8(pld->io_index);
396 if (index_reg == 0xff && ioread8(pld->io_data) == 0xff) {
397 mutex_unlock(&pld->lock);
398 return -ENODEV;
399 }
400
401 /* Release hardware mutex if acquired */
402 if (!(index_reg & KEMPLD_MUTEX_KEY)) {
403 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
404 /* PXT and COMe-cPC2 boards may require a second release */
405 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
406 }
407
408 mutex_unlock(&pld->lock);
409
410 ret = kempld_get_info(pld);
411 if (ret)
412 return ret;
413
414 dev_info(pld->dev, "Found Kontron PLD - %s (%s), spec %d.%d\n",
415 pld->info.version, kempld_get_type_string(pld),
416 pld->info.spec_major, pld->info.spec_minor);
417
418 ret = sysfs_create_group(&pld->dev->kobj, &pld_attr_group);
419 if (ret)
420 return ret;
421
422 ret = kempld_register_cells(pld);
423 if (ret)
424 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
425
426 return ret;
427}
428
429#ifdef CONFIG_ACPI
430static int kempld_get_acpi_data(struct platform_device *pdev)
431{
432 struct list_head resource_list;
433 struct resource *resources;
434 struct resource_entry *rentry;
435 struct device *dev = &pdev->dev;
436 struct acpi_device *acpi_dev = ACPI_COMPANION(dev);
437 const struct kempld_platform_data *pdata;
438 int ret;
439 int count;
440
441 pdata = acpi_device_get_match_data(dev);
442 ret = platform_device_add_data(pdev, pdata,
443 sizeof(struct kempld_platform_data));
444 if (ret)
445 return ret;
446
447 INIT_LIST_HEAD(&resource_list);
448 ret = acpi_dev_get_resources(acpi_dev, &resource_list, NULL, NULL);
449 if (ret < 0)
450 goto out;
451
452 count = ret;
453
454 if (count == 0) {
455 ret = platform_device_add_resources(pdev, pdata->ioresource, 1);
456 goto out;
457 }
458
459 resources = devm_kcalloc(&acpi_dev->dev, count, sizeof(*resources),
460 GFP_KERNEL);
461 if (!resources) {
462 ret = -ENOMEM;
463 goto out;
464 }
465
466 count = 0;
467 list_for_each_entry(rentry, &resource_list, node) {
468 memcpy(&resources[count], rentry->res,
469 sizeof(*resources));
470 count++;
471 }
472 ret = platform_device_add_resources(pdev, resources, count);
473
474out:
475 acpi_dev_free_resource_list(&resource_list);
476
477 return ret;
478}
479#else
480static int kempld_get_acpi_data(struct platform_device *pdev)
481{
482 return -ENODEV;
483}
484#endif /* CONFIG_ACPI */
485
486static int kempld_probe(struct platform_device *pdev)
487{
488 const struct kempld_platform_data *pdata;
489 struct device *dev = &pdev->dev;
490 struct kempld_device_data *pld;
491 struct resource *ioport;
492 int ret;
493
494 if (kempld_pdev == NULL) {
495 /*
496 * No kempld_pdev device has been registered in kempld_init,
497 * so we seem to be probing an ACPI platform device.
498 */
499 ret = kempld_get_acpi_data(pdev);
500 if (ret)
501 return ret;
502 } else if (kempld_pdev != pdev) {
503 /*
504 * The platform device we are probing is not the one we
505 * registered in kempld_init using the DMI table, so this one
506 * comes from ACPI.
507 * As we can only probe one - abort here and use the DMI
508 * based one instead.
509 */
510 dev_notice(dev, "platform device exists - not using ACPI\n");
511 return -ENODEV;
512 }
513 pdata = dev_get_platdata(dev);
514
515 pld = devm_kzalloc(dev, sizeof(*pld), GFP_KERNEL);
516 if (!pld)
517 return -ENOMEM;
518
519 ioport = platform_get_resource(pdev, IORESOURCE_IO, 0);
520 if (!ioport)
521 return -EINVAL;
522
523 pld->io_base = devm_ioport_map(dev, ioport->start,
524 resource_size(ioport));
525 if (!pld->io_base)
526 return -ENOMEM;
527
528 pld->io_index = pld->io_base;
529 pld->io_data = pld->io_base + 1;
530 pld->pld_clock = pdata->pld_clock;
531 pld->dev = dev;
532
533 mutex_init(&pld->lock);
534 platform_set_drvdata(pdev, pld);
535
536 return kempld_detect_device(pld);
537}
538
539static int kempld_remove(struct platform_device *pdev)
540{
541 struct kempld_device_data *pld = platform_get_drvdata(pdev);
542 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
543
544 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
545
546 mfd_remove_devices(&pdev->dev);
547 pdata->release_hardware_mutex(pld);
548
549 return 0;
550}
551
552#ifdef CONFIG_ACPI
553static const struct acpi_device_id kempld_acpi_table[] = {
554 { "KEM0000", (kernel_ulong_t)&kempld_platform_data_generic },
555 { "KEM0001", (kernel_ulong_t)&kempld_platform_data_generic },
556 {}
557};
558MODULE_DEVICE_TABLE(acpi, kempld_acpi_table);
559#endif
560
561static struct platform_driver kempld_driver = {
562 .driver = {
563 .name = "kempld",
564 .acpi_match_table = ACPI_PTR(kempld_acpi_table),
565 },
566 .probe = kempld_probe,
567 .remove = kempld_remove,
568};
569
570static const struct dmi_system_id kempld_dmi_table[] __initconst = {
571 {
572 .ident = "BBD6",
573 .matches = {
574 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
575 DMI_MATCH(DMI_BOARD_NAME, "COMe-bBD"),
576 },
577 .driver_data = (void *)&kempld_platform_data_generic,
578 .callback = kempld_create_platform_device,
579 }, {
580 .ident = "BBL6",
581 .matches = {
582 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
583 DMI_MATCH(DMI_BOARD_NAME, "COMe-bBL6"),
584 },
585 .driver_data = (void *)&kempld_platform_data_generic,
586 .callback = kempld_create_platform_device,
587 }, {
588 .ident = "BDV7",
589 .matches = {
590 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
591 DMI_MATCH(DMI_BOARD_NAME, "COMe-bDV7"),
592 },
593 .driver_data = (void *)&kempld_platform_data_generic,
594 .callback = kempld_create_platform_device,
595 }, {
596 .ident = "BHL6",
597 .matches = {
598 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
599 DMI_MATCH(DMI_BOARD_NAME, "COMe-bHL6"),
600 },
601 .driver_data = (void *)&kempld_platform_data_generic,
602 .callback = kempld_create_platform_device,
603 }, {
604 .ident = "BKL6",
605 .matches = {
606 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
607 DMI_MATCH(DMI_BOARD_NAME, "COMe-bKL6"),
608 },
609 .driver_data = (void *)&kempld_platform_data_generic,
610 .callback = kempld_create_platform_device,
611 }, {
612 .ident = "BSL6",
613 .matches = {
614 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
615 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSL6"),
616 },
617 .driver_data = (void *)&kempld_platform_data_generic,
618 .callback = kempld_create_platform_device,
619 }, {
620 .ident = "CAL6",
621 .matches = {
622 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
623 DMI_MATCH(DMI_BOARD_NAME, "COMe-cAL"),
624 },
625 .driver_data = (void *)&kempld_platform_data_generic,
626 .callback = kempld_create_platform_device,
627 }, {
628 .ident = "CBL6",
629 .matches = {
630 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
631 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBL6"),
632 },
633 .driver_data = (void *)&kempld_platform_data_generic,
634 .callback = kempld_create_platform_device,
635 }, {
636 .ident = "CBW6",
637 .matches = {
638 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
639 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBW6"),
640 },
641 .driver_data = (void *)&kempld_platform_data_generic,
642 .callback = kempld_create_platform_device,
643 }, {
644 .ident = "CCR2",
645 .matches = {
646 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
647 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP2"),
648 },
649 .driver_data = (void *)&kempld_platform_data_generic,
650 .callback = kempld_create_platform_device,
651 }, {
652 .ident = "CCR6",
653 .matches = {
654 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
655 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP6"),
656 },
657 .driver_data = (void *)&kempld_platform_data_generic,
658 .callback = kempld_create_platform_device,
659 }, {
660 .ident = "CDV7",
661 .matches = {
662 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
663 DMI_MATCH(DMI_BOARD_NAME, "COMe-cDV7"),
664 },
665 .driver_data = (void *)&kempld_platform_data_generic,
666 .callback = kempld_create_platform_device,
667 }, {
668 .ident = "CHL6",
669 .matches = {
670 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
671 DMI_MATCH(DMI_BOARD_NAME, "COMe-cHL6"),
672 },
673 .driver_data = (void *)&kempld_platform_data_generic,
674 .callback = kempld_create_platform_device,
675 }, {
676 .ident = "CHR2",
677 .matches = {
678 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
679 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T2"),
680 },
681 .driver_data = (void *)&kempld_platform_data_generic,
682 .callback = kempld_create_platform_device,
683 }, {
684 .ident = "CHR2",
685 .matches = {
686 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
687 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T2"),
688 },
689 .driver_data = (void *)&kempld_platform_data_generic,
690 .callback = kempld_create_platform_device,
691 }, {
692 .ident = "CHR2",
693 .matches = {
694 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
695 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC2"),
696 },
697 .driver_data = (void *)&kempld_platform_data_generic,
698 .callback = kempld_create_platform_device,
699 }, {
700 .ident = "CHR6",
701 .matches = {
702 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
703 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T6"),
704 },
705 .driver_data = (void *)&kempld_platform_data_generic,
706 .callback = kempld_create_platform_device,
707 }, {
708 .ident = "CHR6",
709 .matches = {
710 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
711 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T6"),
712 },
713 .driver_data = (void *)&kempld_platform_data_generic,
714 .callback = kempld_create_platform_device,
715 }, {
716 .ident = "CHR6",
717 .matches = {
718 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
719 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC6"),
720 },
721 .driver_data = (void *)&kempld_platform_data_generic,
722 .callback = kempld_create_platform_device,
723 }, {
724 .ident = "CKL6",
725 .matches = {
726 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
727 DMI_MATCH(DMI_BOARD_NAME, "COMe-cKL6"),
728 },
729 .driver_data = (void *)&kempld_platform_data_generic,
730 .callback = kempld_create_platform_device,
731 }, {
732 .ident = "CNTG",
733 .matches = {
734 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
735 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-PC"),
736 },
737 .driver_data = (void *)&kempld_platform_data_generic,
738 .callback = kempld_create_platform_device,
739 }, {
740 .ident = "CNTG",
741 .matches = {
742 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
743 DMI_MATCH(DMI_BOARD_NAME, "COMe-bPC2"),
744 },
745 .driver_data = (void *)&kempld_platform_data_generic,
746 .callback = kempld_create_platform_device,
747 }, {
748 .ident = "CNTX",
749 .matches = {
750 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
751 DMI_MATCH(DMI_BOARD_NAME, "PXT"),
752 },
753 .driver_data = (void *)&kempld_platform_data_generic,
754 .callback = kempld_create_platform_device,
755 }, {
756 .ident = "CSL6",
757 .matches = {
758 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
759 DMI_MATCH(DMI_BOARD_NAME, "COMe-cSL6"),
760 },
761 .driver_data = (void *)&kempld_platform_data_generic,
762 .callback = kempld_create_platform_device,
763 }, {
764 .ident = "CVV6",
765 .matches = {
766 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
767 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBT"),
768 },
769 .driver_data = (void *)&kempld_platform_data_generic,
770 .callback = kempld_create_platform_device,
771 }, {
772 .ident = "FRI2",
773 .matches = {
774 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
775 DMI_MATCH(DMI_BIOS_VERSION, "FRI2"),
776 },
777 .driver_data = (void *)&kempld_platform_data_generic,
778 .callback = kempld_create_platform_device,
779 }, {
780 .ident = "FRI2",
781 .matches = {
782 DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"),
783 },
784 .driver_data = (void *)&kempld_platform_data_generic,
785 .callback = kempld_create_platform_device,
786 }, {
787 .ident = "A203",
788 .matches = {
789 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
790 DMI_MATCH(DMI_BOARD_NAME, "KBox A-203"),
791 },
792 .driver_data = (void *)&kempld_platform_data_generic,
793 .callback = kempld_create_platform_device,
794 }, {
795 .ident = "M4A1",
796 .matches = {
797 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
798 DMI_MATCH(DMI_BOARD_NAME, "COMe-m4AL"),
799 },
800 .driver_data = (void *)&kempld_platform_data_generic,
801 .callback = kempld_create_platform_device,
802 }, {
803 .ident = "MAL1",
804 .matches = {
805 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
806 DMI_MATCH(DMI_BOARD_NAME, "COMe-mAL10"),
807 },
808 .driver_data = (void *)&kempld_platform_data_generic,
809 .callback = kempld_create_platform_device,
810 }, {
811 .ident = "MAPL",
812 .matches = {
813 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
814 DMI_MATCH(DMI_BOARD_NAME, "mITX-APL"),
815 },
816 .driver_data = (void *)&kempld_platform_data_generic,
817 .callback = kempld_create_platform_device,
818 }, {
819 .ident = "MBR1",
820 .matches = {
821 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
822 DMI_MATCH(DMI_BOARD_NAME, "ETX-OH"),
823 },
824 .driver_data = (void *)&kempld_platform_data_generic,
825 .callback = kempld_create_platform_device,
826 }, {
827 .ident = "MVV1",
828 .matches = {
829 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
830 DMI_MATCH(DMI_BOARD_NAME, "COMe-mBT"),
831 },
832 .driver_data = (void *)&kempld_platform_data_generic,
833 .callback = kempld_create_platform_device,
834 }, {
835 .ident = "NTC1",
836 .matches = {
837 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
838 DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"),
839 },
840 .driver_data = (void *)&kempld_platform_data_generic,
841 .callback = kempld_create_platform_device,
842 }, {
843 .ident = "NTC1",
844 .matches = {
845 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
846 DMI_MATCH(DMI_BOARD_NAME, "nETXe-TT"),
847 },
848 .driver_data = (void *)&kempld_platform_data_generic,
849 .callback = kempld_create_platform_device,
850 }, {
851 .ident = "NTC1",
852 .matches = {
853 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
854 DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"),
855 },
856 .driver_data = (void *)&kempld_platform_data_generic,
857 .callback = kempld_create_platform_device,
858 }, {
859 .ident = "NUP1",
860 .matches = {
861 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
862 DMI_MATCH(DMI_BOARD_NAME, "COMe-mCT"),
863 },
864 .driver_data = (void *)&kempld_platform_data_generic,
865 .callback = kempld_create_platform_device,
866 }, {
867 .ident = "PAPL",
868 .matches = {
869 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
870 DMI_MATCH(DMI_BOARD_NAME, "pITX-APL"),
871 },
872 .driver_data = (void *)&kempld_platform_data_generic,
873 .callback = kempld_create_platform_device,
874 }, {
875 .ident = "SXAL",
876 .matches = {
877 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
878 DMI_MATCH(DMI_BOARD_NAME, "SMARC-sXAL"),
879 },
880 .driver_data = (void *)&kempld_platform_data_generic,
881 .callback = kempld_create_platform_device,
882 }, {
883 .ident = "SXAL4",
884 .matches = {
885 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
886 DMI_MATCH(DMI_BOARD_NAME, "SMARC-sXA4"),
887 },
888 .driver_data = (void *)&kempld_platform_data_generic,
889 .callback = kempld_create_platform_device,
890 }, {
891 .ident = "UNP1",
892 .matches = {
893 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
894 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-DC"),
895 },
896 .driver_data = (void *)&kempld_platform_data_generic,
897 .callback = kempld_create_platform_device,
898 }, {
899 .ident = "UNP1",
900 .matches = {
901 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
902 DMI_MATCH(DMI_BOARD_NAME, "COMe-cDC2"),
903 },
904 .driver_data = (void *)&kempld_platform_data_generic,
905 .callback = kempld_create_platform_device,
906 }, {
907 .ident = "UNTG",
908 .matches = {
909 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
910 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-PC"),
911 },
912 .driver_data = (void *)&kempld_platform_data_generic,
913 .callback = kempld_create_platform_device,
914 }, {
915 .ident = "UNTG",
916 .matches = {
917 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
918 DMI_MATCH(DMI_BOARD_NAME, "COMe-cPC2"),
919 },
920 .driver_data = (void *)&kempld_platform_data_generic,
921 .callback = kempld_create_platform_device,
922 }, {
923 .ident = "UUP6",
924 .matches = {
925 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
926 DMI_MATCH(DMI_BOARD_NAME, "COMe-cCT6"),
927 },
928 .driver_data = (void *)&kempld_platform_data_generic,
929 .callback = kempld_create_platform_device,
930 }, {
931 .ident = "UTH6",
932 .matches = {
933 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
934 DMI_MATCH(DMI_BOARD_NAME, "COMe-cTH6"),
935 },
936 .driver_data = (void *)&kempld_platform_data_generic,
937 .callback = kempld_create_platform_device,
938 }, {
939 .ident = "Q7AL",
940 .matches = {
941 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
942 DMI_MATCH(DMI_BOARD_NAME, "Qseven-Q7AL"),
943 },
944 .driver_data = (void *)&kempld_platform_data_generic,
945 .callback = kempld_create_platform_device,
946 },
947 {}
948};
949MODULE_DEVICE_TABLE(dmi, kempld_dmi_table);
950
951static int __init kempld_init(void)
952{
953 const struct dmi_system_id *id;
954
955 if (force_device_id[0]) {
956 for (id = kempld_dmi_table;
957 id->matches[0].slot != DMI_NONE; id++)
958 if (strstr(id->ident, force_device_id))
959 if (id->callback && !id->callback(id))
960 break;
961 if (id->matches[0].slot == DMI_NONE)
962 return -ENODEV;
963 } else {
964 dmi_check_system(kempld_dmi_table);
965 }
966
967 return platform_driver_register(&kempld_driver);
968}
969
970static void __exit kempld_exit(void)
971{
972 if (kempld_pdev)
973 platform_device_unregister(kempld_pdev);
974
975 platform_driver_unregister(&kempld_driver);
976}
977
978module_init(kempld_init);
979module_exit(kempld_exit);
980
981MODULE_DESCRIPTION("KEM PLD Core Driver");
982MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>");
983MODULE_LICENSE("GPL");
984MODULE_ALIAS("platform:kempld-core");