blob: f38ec424872e362b934aaa6edd2fb21358bcb326 [file] [log] [blame]
Kevin Strasser43620a12013-06-23 21:00:03 -07001/*
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] = "";
Lee Jones9ef4e932014-07-21 16:47:51 +010027module_param_string(force_device_id, force_device_id,
28 sizeof(force_device_id), 0);
Kevin Strasser43620a12013-06-23 21:00:03 -070029MODULE_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)
Lee Jones9ef4e932014-07-21 16:47:51 +010040 usleep_range(1000, 3000);
Kevin Strasser43620a12013-06-23 21:00:03 -070041}
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
Krzysztof Kozlowskibd6d35a62014-05-13 12:58:42 +020090static const struct mfd_cell kempld_devs[] = {
Kevin Strasser43620a12013-06-23 21:00:03 -070091 [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{
Jingoo Han334a41c2013-07-30 17:10:05 +0900262 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
Kevin Strasser43620a12013-06-23 21:00:03 -0700263
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{
Jingoo Han334a41c2013-07-30 17:10:05 +0900275 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
Kevin Strasser43620a12013-06-23 21:00:03 -0700276
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{
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200292 int ret;
Jingoo Han334a41c2013-07-30 17:10:05 +0900293 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200294 char major, minor;
Kevin Strasser43620a12013-06-23 21:00:03 -0700295
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200296 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;
Kevin Strasser43620a12013-06-23 21:00:03 -0700324}
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{
Jingoo Han334a41c2013-07-30 17:10:05 +0900335 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
Kevin Strasser43620a12013-06-23 21:00:03 -0700336
337 return pdata->register_cells(pld);
338}
339
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200340static 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
Kevin Strasser43620a12013-06-23 21:00:03 -0700403static int kempld_detect_device(struct kempld_device_data *pld)
404{
Kevin Strasser43620a12013-06-23 21:00:03 -0700405 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
Guenter Roeck204747c2014-03-20 08:12:28 -0700417 /* Release hardware mutex if acquired */
418 if (!(index_reg & KEMPLD_MUTEX_KEY)) {
Kevin Strasser43620a12013-06-23 21:00:03 -0700419 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
Guenter Roeck204747c2014-03-20 08:12:28 -0700420 /* PXT and COMe-cPC2 boards may require a second release */
421 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
422 }
Kevin Strasser43620a12013-06-23 21:00:03 -0700423
424 mutex_unlock(&pld->lock);
425
426 ret = kempld_get_info(pld);
427 if (ret)
428 return ret;
429
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200430 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);
Kevin Strasser43620a12013-06-23 21:00:03 -0700433
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200434 ret = sysfs_create_group(&pld->dev->kobj, &pld_attr_group);
435 if (ret)
436 return ret;
Kevin Strasser43620a12013-06-23 21:00:03 -0700437
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200438 ret = kempld_register_cells(pld);
439 if (ret)
440 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
441
442 return ret;
Kevin Strasser43620a12013-06-23 21:00:03 -0700443}
444
445static int kempld_probe(struct platform_device *pdev)
446{
Jingoo Han334a41c2013-07-30 17:10:05 +0900447 struct kempld_platform_data *pdata = dev_get_platdata(&pdev->dev);
Kevin Strasser43620a12013-06-23 21:00:03 -0700448 struct device *dev = &pdev->dev;
449 struct kempld_device_data *pld;
450 struct resource *ioport;
451 int ret;
452
453 pld = devm_kzalloc(dev, sizeof(*pld), GFP_KERNEL);
454 if (!pld)
455 return -ENOMEM;
456
457 ioport = platform_get_resource(pdev, IORESOURCE_IO, 0);
458 if (!ioport)
459 return -EINVAL;
460
461 pld->io_base = devm_ioport_map(dev, ioport->start,
462 ioport->end - ioport->start);
463 if (!pld->io_base)
464 return -ENOMEM;
465
466 pld->io_index = pld->io_base;
467 pld->io_data = pld->io_base + 1;
468 pld->pld_clock = pdata->pld_clock;
469 pld->dev = dev;
470
471 mutex_init(&pld->lock);
472 platform_set_drvdata(pdev, pld);
473
474 ret = kempld_detect_device(pld);
475 if (ret)
476 return ret;
477
478 return 0;
479}
480
481static int kempld_remove(struct platform_device *pdev)
482{
483 struct kempld_device_data *pld = platform_get_drvdata(pdev);
Jingoo Han334a41c2013-07-30 17:10:05 +0900484 struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
Kevin Strasser43620a12013-06-23 21:00:03 -0700485
Michael Brunner58a9e5b2014-04-08 08:21:06 +0200486 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
487
Kevin Strasser43620a12013-06-23 21:00:03 -0700488 mfd_remove_devices(&pdev->dev);
489 pdata->release_hardware_mutex(pld);
490
491 return 0;
492}
493
494static struct platform_driver kempld_driver = {
495 .driver = {
496 .name = "kempld",
Kevin Strasser43620a12013-06-23 21:00:03 -0700497 },
498 .probe = kempld_probe,
499 .remove = kempld_remove,
500};
501
Lee Jones9ef4e932014-07-21 16:47:51 +0100502static struct dmi_system_id kempld_dmi_table[] __initdata = {
Kevin Strasser43620a12013-06-23 21:00:03 -0700503 {
Michael Brunnerc1d33b12013-08-09 17:33:43 +0200504 .ident = "BHL6",
505 .matches = {
506 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
507 DMI_MATCH(DMI_BOARD_NAME, "COMe-bHL6"),
508 },
509 .driver_data = (void *)&kempld_platform_data_generic,
510 .callback = kempld_create_platform_device,
511 },
512 {
Kevin Strasser43620a12013-06-23 21:00:03 -0700513 .ident = "CCR2",
514 .matches = {
515 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
516 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP2"),
517 },
518 .driver_data = (void *)&kempld_platform_data_generic,
519 .callback = kempld_create_platform_device,
520 }, {
521 .ident = "CCR6",
522 .matches = {
523 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
524 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP6"),
525 },
526 .driver_data = (void *)&kempld_platform_data_generic,
527 .callback = kempld_create_platform_device,
528 }, {
Michael Brunnera3ee7502014-02-24 08:53:46 +0100529 .ident = "CHL6",
530 .matches = {
531 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
532 DMI_MATCH(DMI_BOARD_NAME, "COMe-cHL6"),
533 },
534 .driver_data = (void *)&kempld_platform_data_generic,
535 .callback = kempld_create_platform_device,
536 }, {
Kevin Strasser43620a12013-06-23 21:00:03 -0700537 .ident = "CHR2",
538 .matches = {
539 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
540 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T2"),
541 },
542 .driver_data = (void *)&kempld_platform_data_generic,
543 .callback = kempld_create_platform_device,
544 }, {
545 .ident = "CHR2",
546 .matches = {
547 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
548 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T2"),
549 },
550 .driver_data = (void *)&kempld_platform_data_generic,
551 .callback = kempld_create_platform_device,
552 }, {
553 .ident = "CHR2",
554 .matches = {
555 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
556 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC2"),
557 },
558 .driver_data = (void *)&kempld_platform_data_generic,
559 .callback = kempld_create_platform_device,
560 }, {
561 .ident = "CHR6",
562 .matches = {
563 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
564 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T6"),
565 },
566 .driver_data = (void *)&kempld_platform_data_generic,
567 .callback = kempld_create_platform_device,
568 }, {
569 .ident = "CHR6",
570 .matches = {
571 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
572 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T6"),
573 },
574 .driver_data = (void *)&kempld_platform_data_generic,
575 .callback = kempld_create_platform_device,
576 }, {
577 .ident = "CHR6",
578 .matches = {
579 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
580 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC6"),
581 },
582 .driver_data = (void *)&kempld_platform_data_generic,
583 .callback = kempld_create_platform_device,
584 }, {
585 .ident = "CNTG",
586 .matches = {
587 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
588 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-PC"),
589 },
590 .driver_data = (void *)&kempld_platform_data_generic,
591 .callback = kempld_create_platform_device,
592 }, {
593 .ident = "CNTG",
594 .matches = {
595 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
596 DMI_MATCH(DMI_BOARD_NAME, "COMe-bPC2"),
597 },
598 .driver_data = (void *)&kempld_platform_data_generic,
599 .callback = kempld_create_platform_device,
600 }, {
601 .ident = "CNTX",
602 .matches = {
603 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
604 DMI_MATCH(DMI_BOARD_NAME, "PXT"),
605 },
606 .driver_data = (void *)&kempld_platform_data_generic,
607 .callback = kempld_create_platform_device,
608 }, {
Michael Brunnera3ee7502014-02-24 08:53:46 +0100609 .ident = "CVV6",
610 .matches = {
611 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
612 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBT"),
613 },
614 .driver_data = (void *)&kempld_platform_data_generic,
615 .callback = kempld_create_platform_device,
616 }, {
Kevin Strasser43620a12013-06-23 21:00:03 -0700617 .ident = "FRI2",
618 .matches = {
619 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
620 DMI_MATCH(DMI_BIOS_VERSION, "FRI2"),
621 },
622 .driver_data = (void *)&kempld_platform_data_generic,
623 .callback = kempld_create_platform_device,
624 }, {
625 .ident = "FRI2",
626 .matches = {
627 DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"),
628 },
629 .driver_data = (void *)&kempld_platform_data_generic,
630 .callback = kempld_create_platform_device,
631 }, {
632 .ident = "MBR1",
633 .matches = {
634 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
635 DMI_MATCH(DMI_BOARD_NAME, "ETX-OH"),
636 },
637 .driver_data = (void *)&kempld_platform_data_generic,
638 .callback = kempld_create_platform_device,
639 }, {
Michael Brunnera3ee7502014-02-24 08:53:46 +0100640 .ident = "MVV1",
641 .matches = {
642 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
643 DMI_MATCH(DMI_BOARD_NAME, "COMe-mBT"),
644 },
645 .driver_data = (void *)&kempld_platform_data_generic,
646 .callback = kempld_create_platform_device,
647 }, {
Kevin Strasser43620a12013-06-23 21:00:03 -0700648 .ident = "NTC1",
649 .matches = {
650 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
651 DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"),
652 },
653 .driver_data = (void *)&kempld_platform_data_generic,
654 .callback = kempld_create_platform_device,
655 }, {
656 .ident = "NTC1",
657 .matches = {
658 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
659 DMI_MATCH(DMI_BOARD_NAME, "nETXe-TT"),
660 },
661 .driver_data = (void *)&kempld_platform_data_generic,
662 .callback = kempld_create_platform_device,
663 }, {
664 .ident = "NTC1",
665 .matches = {
666 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
667 DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"),
668 },
669 .driver_data = (void *)&kempld_platform_data_generic,
670 .callback = kempld_create_platform_device,
671 }, {
672 .ident = "NUP1",
673 .matches = {
674 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
675 DMI_MATCH(DMI_BOARD_NAME, "COMe-mCT"),
676 },
677 .driver_data = (void *)&kempld_platform_data_generic,
678 .callback = kempld_create_platform_device,
679 }, {
680 .ident = "UNP1",
681 .matches = {
682 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
683 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-DC"),
684 },
685 .driver_data = (void *)&kempld_platform_data_generic,
686 .callback = kempld_create_platform_device,
687 }, {
688 .ident = "UNP1",
689 .matches = {
690 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
691 DMI_MATCH(DMI_BOARD_NAME, "COMe-cDC2"),
692 },
693 .driver_data = (void *)&kempld_platform_data_generic,
694 .callback = kempld_create_platform_device,
695 }, {
696 .ident = "UNTG",
697 .matches = {
698 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
699 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-PC"),
700 },
701 .driver_data = (void *)&kempld_platform_data_generic,
702 .callback = kempld_create_platform_device,
703 }, {
704 .ident = "UNTG",
705 .matches = {
706 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
707 DMI_MATCH(DMI_BOARD_NAME, "COMe-cPC2"),
708 },
709 .driver_data = (void *)&kempld_platform_data_generic,
710 .callback = kempld_create_platform_device,
711 }, {
712 .ident = "UUP6",
713 .matches = {
714 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
715 DMI_MATCH(DMI_BOARD_NAME, "COMe-cCT6"),
716 },
717 .driver_data = (void *)&kempld_platform_data_generic,
718 .callback = kempld_create_platform_device,
719 },
Michael Brunnerc1d33b12013-08-09 17:33:43 +0200720 {
721 .ident = "UTH6",
722 .matches = {
723 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
724 DMI_MATCH(DMI_BOARD_NAME, "COMe-cTH6"),
725 },
726 .driver_data = (void *)&kempld_platform_data_generic,
727 .callback = kempld_create_platform_device,
728 },
Kevin Strasser43620a12013-06-23 21:00:03 -0700729 {}
730};
731MODULE_DEVICE_TABLE(dmi, kempld_dmi_table);
732
733static int __init kempld_init(void)
734{
735 const struct dmi_system_id *id;
736 int ret;
737
738 if (force_device_id[0]) {
Lee Jones9ef4e932014-07-21 16:47:51 +0100739 for (id = kempld_dmi_table;
740 id->matches[0].slot != DMI_NONE; id++)
Kevin Strasser43620a12013-06-23 21:00:03 -0700741 if (strstr(id->ident, force_device_id))
742 if (id->callback && id->callback(id))
743 break;
744 if (id->matches[0].slot == DMI_NONE)
745 return -ENODEV;
746 } else {
747 if (!dmi_check_system(kempld_dmi_table))
748 return -ENODEV;
749 }
750
751 ret = platform_driver_register(&kempld_driver);
752 if (ret)
753 return ret;
754
755 return 0;
756}
757
758static void __exit kempld_exit(void)
759{
760 if (kempld_pdev)
761 platform_device_unregister(kempld_pdev);
762
763 platform_driver_unregister(&kempld_driver);
764}
765
766module_init(kempld_init);
767module_exit(kempld_exit);
768
769MODULE_DESCRIPTION("KEM PLD Core Driver");
770MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>");
771MODULE_LICENSE("GPL");
772MODULE_ALIAS("platform:kempld-core");