Kevin Strasser | 43620a1 | 2013-06-23 21:00:03 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Kontron PLD MFD core driver |
| 3 | * |
| 4 | * Copyright (c) 2010-2013 Kontron Europe GmbH |
| 5 | * Author: Michael Brunner <michael.brunner@kontron.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License 2 as published |
| 9 | * by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/platform_device.h> |
| 18 | #include <linux/mfd/core.h> |
| 19 | #include <linux/mfd/kempld.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/dmi.h> |
| 22 | #include <linux/io.h> |
| 23 | #include <linux/delay.h> |
| 24 | |
| 25 | #define MAX_ID_LEN 4 |
| 26 | static char force_device_id[MAX_ID_LEN + 1] = ""; |
| 27 | module_param_string(force_device_id, force_device_id, sizeof(force_device_id), 0); |
| 28 | MODULE_PARM_DESC(force_device_id, "Override detected product"); |
| 29 | |
| 30 | /* |
| 31 | * Get hardware mutex to block firmware from accessing the pld. |
| 32 | * It is possible for the firmware may hold the mutex for an extended length of |
| 33 | * time. This function will block until access has been granted. |
| 34 | */ |
| 35 | static void kempld_get_hardware_mutex(struct kempld_device_data *pld) |
| 36 | { |
| 37 | /* The mutex bit will read 1 until access has been granted */ |
| 38 | while (ioread8(pld->io_index) & KEMPLD_MUTEX_KEY) |
| 39 | msleep(1); |
| 40 | } |
| 41 | |
| 42 | static void kempld_release_hardware_mutex(struct kempld_device_data *pld) |
| 43 | { |
| 44 | /* The harware mutex is released when 1 is written to the mutex bit. */ |
| 45 | iowrite8(KEMPLD_MUTEX_KEY, pld->io_index); |
| 46 | } |
| 47 | |
| 48 | static int kempld_get_info_generic(struct kempld_device_data *pld) |
| 49 | { |
| 50 | u16 version; |
| 51 | u8 spec; |
| 52 | |
| 53 | kempld_get_mutex(pld); |
| 54 | |
| 55 | version = kempld_read16(pld, KEMPLD_VERSION); |
| 56 | spec = kempld_read8(pld, KEMPLD_SPEC); |
| 57 | pld->info.buildnr = kempld_read16(pld, KEMPLD_BUILDNR); |
| 58 | |
| 59 | pld->info.minor = KEMPLD_VERSION_GET_MINOR(version); |
| 60 | pld->info.major = KEMPLD_VERSION_GET_MAJOR(version); |
| 61 | pld->info.number = KEMPLD_VERSION_GET_NUMBER(version); |
| 62 | pld->info.type = KEMPLD_VERSION_GET_TYPE(version); |
| 63 | |
| 64 | if (spec == 0xff) { |
| 65 | pld->info.spec_minor = 0; |
| 66 | pld->info.spec_major = 1; |
| 67 | } else { |
| 68 | pld->info.spec_minor = KEMPLD_SPEC_GET_MINOR(spec); |
| 69 | pld->info.spec_major = KEMPLD_SPEC_GET_MAJOR(spec); |
| 70 | } |
| 71 | |
| 72 | if (pld->info.spec_major > 0) |
| 73 | pld->feature_mask = kempld_read16(pld, KEMPLD_FEATURE); |
| 74 | else |
| 75 | pld->feature_mask = 0; |
| 76 | |
| 77 | kempld_release_mutex(pld); |
| 78 | |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | enum kempld_cells { |
| 83 | KEMPLD_I2C = 0, |
| 84 | KEMPLD_WDT, |
| 85 | KEMPLD_GPIO, |
| 86 | KEMPLD_UART, |
| 87 | }; |
| 88 | |
| 89 | static struct mfd_cell kempld_devs[] = { |
| 90 | [KEMPLD_I2C] = { |
| 91 | .name = "kempld-i2c", |
| 92 | }, |
| 93 | [KEMPLD_WDT] = { |
| 94 | .name = "kempld-wdt", |
| 95 | }, |
| 96 | [KEMPLD_GPIO] = { |
| 97 | .name = "kempld-gpio", |
| 98 | }, |
| 99 | [KEMPLD_UART] = { |
| 100 | .name = "kempld-uart", |
| 101 | }, |
| 102 | }; |
| 103 | |
| 104 | #define KEMPLD_MAX_DEVS ARRAY_SIZE(kempld_devs) |
| 105 | |
| 106 | static int kempld_register_cells_generic(struct kempld_device_data *pld) |
| 107 | { |
| 108 | struct mfd_cell devs[KEMPLD_MAX_DEVS]; |
| 109 | int i = 0; |
| 110 | |
| 111 | if (pld->feature_mask & KEMPLD_FEATURE_BIT_I2C) |
| 112 | devs[i++] = kempld_devs[KEMPLD_I2C]; |
| 113 | |
| 114 | if (pld->feature_mask & KEMPLD_FEATURE_BIT_WATCHDOG) |
| 115 | devs[i++] = kempld_devs[KEMPLD_WDT]; |
| 116 | |
| 117 | if (pld->feature_mask & KEMPLD_FEATURE_BIT_GPIO) |
| 118 | devs[i++] = kempld_devs[KEMPLD_GPIO]; |
| 119 | |
| 120 | if (pld->feature_mask & KEMPLD_FEATURE_MASK_UART) |
| 121 | devs[i++] = kempld_devs[KEMPLD_UART]; |
| 122 | |
| 123 | return mfd_add_devices(pld->dev, -1, devs, i, NULL, 0, NULL); |
| 124 | } |
| 125 | |
| 126 | static struct resource kempld_ioresource = { |
| 127 | .start = KEMPLD_IOINDEX, |
| 128 | .end = KEMPLD_IODATA, |
| 129 | .flags = IORESOURCE_IO, |
| 130 | }; |
| 131 | |
| 132 | static const struct kempld_platform_data kempld_platform_data_generic = { |
| 133 | .pld_clock = KEMPLD_CLK, |
| 134 | .ioresource = &kempld_ioresource, |
| 135 | .get_hardware_mutex = kempld_get_hardware_mutex, |
| 136 | .release_hardware_mutex = kempld_release_hardware_mutex, |
| 137 | .get_info = kempld_get_info_generic, |
| 138 | .register_cells = kempld_register_cells_generic, |
| 139 | }; |
| 140 | |
| 141 | static struct platform_device *kempld_pdev; |
| 142 | |
| 143 | static int kempld_create_platform_device(const struct dmi_system_id *id) |
| 144 | { |
| 145 | struct kempld_platform_data *pdata = id->driver_data; |
| 146 | int ret; |
| 147 | |
| 148 | kempld_pdev = platform_device_alloc("kempld", -1); |
| 149 | if (!kempld_pdev) |
| 150 | return -ENOMEM; |
| 151 | |
| 152 | ret = platform_device_add_data(kempld_pdev, pdata, sizeof(*pdata)); |
| 153 | if (ret) |
| 154 | goto err; |
| 155 | |
| 156 | ret = platform_device_add_resources(kempld_pdev, pdata->ioresource, 1); |
| 157 | if (ret) |
| 158 | goto err; |
| 159 | |
| 160 | ret = platform_device_add(kempld_pdev); |
| 161 | if (ret) |
| 162 | goto err; |
| 163 | |
| 164 | return 0; |
| 165 | err: |
| 166 | platform_device_put(kempld_pdev); |
| 167 | return ret; |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * kempld_read8 - read 8 bit register |
| 172 | * @pld: kempld_device_data structure describing the PLD |
| 173 | * @index: register index on the chip |
| 174 | * |
| 175 | * kempld_get_mutex must be called prior to calling this function. |
| 176 | */ |
| 177 | u8 kempld_read8(struct kempld_device_data *pld, u8 index) |
| 178 | { |
| 179 | iowrite8(index, pld->io_index); |
| 180 | return ioread8(pld->io_data); |
| 181 | } |
| 182 | EXPORT_SYMBOL_GPL(kempld_read8); |
| 183 | |
| 184 | /** |
| 185 | * kempld_write8 - write 8 bit register |
| 186 | * @pld: kempld_device_data structure describing the PLD |
| 187 | * @index: register index on the chip |
| 188 | * @data: new register value |
| 189 | * |
| 190 | * kempld_get_mutex must be called prior to calling this function. |
| 191 | */ |
| 192 | void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data) |
| 193 | { |
| 194 | iowrite8(index, pld->io_index); |
| 195 | iowrite8(data, pld->io_data); |
| 196 | } |
| 197 | EXPORT_SYMBOL_GPL(kempld_write8); |
| 198 | |
| 199 | /** |
| 200 | * kempld_read16 - read 16 bit register |
| 201 | * @pld: kempld_device_data structure describing the PLD |
| 202 | * @index: register index on the chip |
| 203 | * |
| 204 | * kempld_get_mutex must be called prior to calling this function. |
| 205 | */ |
| 206 | u16 kempld_read16(struct kempld_device_data *pld, u8 index) |
| 207 | { |
| 208 | return kempld_read8(pld, index) | kempld_read8(pld, index + 1) << 8; |
| 209 | } |
| 210 | EXPORT_SYMBOL_GPL(kempld_read16); |
| 211 | |
| 212 | /** |
| 213 | * kempld_write16 - write 16 bit register |
| 214 | * @pld: kempld_device_data structure describing the PLD |
| 215 | * @index: register index on the chip |
| 216 | * @data: new register value |
| 217 | * |
| 218 | * kempld_get_mutex must be called prior to calling this function. |
| 219 | */ |
| 220 | void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data) |
| 221 | { |
| 222 | kempld_write8(pld, index, (u8)data); |
| 223 | kempld_write8(pld, index + 1, (u8)(data >> 8)); |
| 224 | } |
| 225 | EXPORT_SYMBOL_GPL(kempld_write16); |
| 226 | |
| 227 | /** |
| 228 | * kempld_read32 - read 32 bit register |
| 229 | * @pld: kempld_device_data structure describing the PLD |
| 230 | * @index: register index on the chip |
| 231 | * |
| 232 | * kempld_get_mutex must be called prior to calling this function. |
| 233 | */ |
| 234 | u32 kempld_read32(struct kempld_device_data *pld, u8 index) |
| 235 | { |
| 236 | return kempld_read16(pld, index) | kempld_read16(pld, index + 2) << 16; |
| 237 | } |
| 238 | EXPORT_SYMBOL_GPL(kempld_read32); |
| 239 | |
| 240 | /** |
| 241 | * kempld_write32 - write 32 bit register |
| 242 | * @pld: kempld_device_data structure describing the PLD |
| 243 | * @index: register index on the chip |
| 244 | * @data: new register value |
| 245 | * |
| 246 | * kempld_get_mutex must be called prior to calling this function. |
| 247 | */ |
| 248 | void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data) |
| 249 | { |
| 250 | kempld_write16(pld, index, (u16)data); |
| 251 | kempld_write16(pld, index + 2, (u16)(data >> 16)); |
| 252 | } |
| 253 | EXPORT_SYMBOL_GPL(kempld_write32); |
| 254 | |
| 255 | /** |
| 256 | * kempld_get_mutex - acquire PLD mutex |
| 257 | * @pld: kempld_device_data structure describing the PLD |
| 258 | */ |
| 259 | void kempld_get_mutex(struct kempld_device_data *pld) |
| 260 | { |
| 261 | struct kempld_platform_data *pdata = pld->dev->platform_data; |
| 262 | |
| 263 | mutex_lock(&pld->lock); |
| 264 | pdata->get_hardware_mutex(pld); |
| 265 | } |
| 266 | EXPORT_SYMBOL_GPL(kempld_get_mutex); |
| 267 | |
| 268 | /** |
| 269 | * kempld_release_mutex - release PLD mutex |
| 270 | * @pld: kempld_device_data structure describing the PLD |
| 271 | */ |
| 272 | void kempld_release_mutex(struct kempld_device_data *pld) |
| 273 | { |
| 274 | struct kempld_platform_data *pdata = pld->dev->platform_data; |
| 275 | |
| 276 | pdata->release_hardware_mutex(pld); |
| 277 | mutex_unlock(&pld->lock); |
| 278 | } |
| 279 | EXPORT_SYMBOL_GPL(kempld_release_mutex); |
| 280 | |
| 281 | /** |
| 282 | * kempld_get_info - update device specific information |
| 283 | * @pld: kempld_device_data structure describing the PLD |
| 284 | * |
| 285 | * This function calls the configured board specific kempld_get_info_XXXX |
| 286 | * function which is responsible for gathering information about the specific |
| 287 | * hardware. The information is then stored within the pld structure. |
| 288 | */ |
| 289 | static int kempld_get_info(struct kempld_device_data *pld) |
| 290 | { |
| 291 | struct kempld_platform_data *pdata = pld->dev->platform_data; |
| 292 | |
| 293 | return pdata->get_info(pld); |
| 294 | } |
| 295 | |
| 296 | /* |
| 297 | * kempld_register_cells - register cell drivers |
| 298 | * |
| 299 | * This function registers cell drivers for the detected hardware by calling |
| 300 | * the configured kempld_register_cells_XXXX function which is responsible |
| 301 | * to detect and register the needed cell drivers. |
| 302 | */ |
| 303 | static int kempld_register_cells(struct kempld_device_data *pld) |
| 304 | { |
| 305 | struct kempld_platform_data *pdata = pld->dev->platform_data; |
| 306 | |
| 307 | return pdata->register_cells(pld); |
| 308 | } |
| 309 | |
| 310 | static int kempld_detect_device(struct kempld_device_data *pld) |
| 311 | { |
| 312 | char *version_type; |
| 313 | u8 index_reg; |
| 314 | int ret; |
| 315 | |
| 316 | mutex_lock(&pld->lock); |
| 317 | |
| 318 | /* Check for empty IO space */ |
| 319 | index_reg = ioread8(pld->io_index); |
| 320 | if (index_reg == 0xff && ioread8(pld->io_data) == 0xff) { |
| 321 | mutex_unlock(&pld->lock); |
| 322 | return -ENODEV; |
| 323 | } |
| 324 | |
| 325 | /* Release hardware mutex if aquired */ |
| 326 | if (!(index_reg & KEMPLD_MUTEX_KEY)) |
| 327 | iowrite8(KEMPLD_MUTEX_KEY, pld->io_index); |
| 328 | |
| 329 | mutex_unlock(&pld->lock); |
| 330 | |
| 331 | ret = kempld_get_info(pld); |
| 332 | if (ret) |
| 333 | return ret; |
| 334 | |
| 335 | switch (pld->info.type) { |
| 336 | case 0: |
| 337 | version_type = "release"; |
| 338 | break; |
| 339 | case 1: |
| 340 | version_type = "debug"; |
| 341 | break; |
| 342 | case 2: |
| 343 | version_type = "custom"; |
| 344 | break; |
| 345 | default: |
| 346 | version_type = "unspecified"; |
| 347 | } |
| 348 | |
| 349 | dev_info(pld->dev, "Found Kontron PLD %d\n", pld->info.number); |
| 350 | dev_info(pld->dev, "%s version %d.%d build %d, specification %d.%d\n", |
| 351 | version_type, pld->info.major, pld->info.minor, |
| 352 | pld->info.buildnr, pld->info.spec_major, |
| 353 | pld->info.spec_minor); |
| 354 | |
| 355 | return kempld_register_cells(pld); |
| 356 | } |
| 357 | |
| 358 | static int kempld_probe(struct platform_device *pdev) |
| 359 | { |
| 360 | struct kempld_platform_data *pdata = pdev->dev.platform_data; |
| 361 | struct device *dev = &pdev->dev; |
| 362 | struct kempld_device_data *pld; |
| 363 | struct resource *ioport; |
| 364 | int ret; |
| 365 | |
| 366 | pld = devm_kzalloc(dev, sizeof(*pld), GFP_KERNEL); |
| 367 | if (!pld) |
| 368 | return -ENOMEM; |
| 369 | |
| 370 | ioport = platform_get_resource(pdev, IORESOURCE_IO, 0); |
| 371 | if (!ioport) |
| 372 | return -EINVAL; |
| 373 | |
| 374 | pld->io_base = devm_ioport_map(dev, ioport->start, |
| 375 | ioport->end - ioport->start); |
| 376 | if (!pld->io_base) |
| 377 | return -ENOMEM; |
| 378 | |
| 379 | pld->io_index = pld->io_base; |
| 380 | pld->io_data = pld->io_base + 1; |
| 381 | pld->pld_clock = pdata->pld_clock; |
| 382 | pld->dev = dev; |
| 383 | |
| 384 | mutex_init(&pld->lock); |
| 385 | platform_set_drvdata(pdev, pld); |
| 386 | |
| 387 | ret = kempld_detect_device(pld); |
| 388 | if (ret) |
| 389 | return ret; |
| 390 | |
| 391 | return 0; |
| 392 | } |
| 393 | |
| 394 | static int kempld_remove(struct platform_device *pdev) |
| 395 | { |
| 396 | struct kempld_device_data *pld = platform_get_drvdata(pdev); |
| 397 | struct kempld_platform_data *pdata = pld->dev->platform_data; |
| 398 | |
| 399 | mfd_remove_devices(&pdev->dev); |
| 400 | pdata->release_hardware_mutex(pld); |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
| 405 | static struct platform_driver kempld_driver = { |
| 406 | .driver = { |
| 407 | .name = "kempld", |
| 408 | .owner = THIS_MODULE, |
| 409 | }, |
| 410 | .probe = kempld_probe, |
| 411 | .remove = kempld_remove, |
| 412 | }; |
| 413 | |
| 414 | static struct dmi_system_id __initdata kempld_dmi_table[] = { |
| 415 | { |
| 416 | .ident = "CCR2", |
| 417 | .matches = { |
| 418 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 419 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP2"), |
| 420 | }, |
| 421 | .driver_data = (void *)&kempld_platform_data_generic, |
| 422 | .callback = kempld_create_platform_device, |
| 423 | }, { |
| 424 | .ident = "CCR6", |
| 425 | .matches = { |
| 426 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 427 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP6"), |
| 428 | }, |
| 429 | .driver_data = (void *)&kempld_platform_data_generic, |
| 430 | .callback = kempld_create_platform_device, |
| 431 | }, { |
| 432 | .ident = "CHR2", |
| 433 | .matches = { |
| 434 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 435 | DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T2"), |
| 436 | }, |
| 437 | .driver_data = (void *)&kempld_platform_data_generic, |
| 438 | .callback = kempld_create_platform_device, |
| 439 | }, { |
| 440 | .ident = "CHR2", |
| 441 | .matches = { |
| 442 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 443 | DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T2"), |
| 444 | }, |
| 445 | .driver_data = (void *)&kempld_platform_data_generic, |
| 446 | .callback = kempld_create_platform_device, |
| 447 | }, { |
| 448 | .ident = "CHR2", |
| 449 | .matches = { |
| 450 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 451 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC2"), |
| 452 | }, |
| 453 | .driver_data = (void *)&kempld_platform_data_generic, |
| 454 | .callback = kempld_create_platform_device, |
| 455 | }, { |
| 456 | .ident = "CHR6", |
| 457 | .matches = { |
| 458 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 459 | DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T6"), |
| 460 | }, |
| 461 | .driver_data = (void *)&kempld_platform_data_generic, |
| 462 | .callback = kempld_create_platform_device, |
| 463 | }, { |
| 464 | .ident = "CHR6", |
| 465 | .matches = { |
| 466 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 467 | DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T6"), |
| 468 | }, |
| 469 | .driver_data = (void *)&kempld_platform_data_generic, |
| 470 | .callback = kempld_create_platform_device, |
| 471 | }, { |
| 472 | .ident = "CHR6", |
| 473 | .matches = { |
| 474 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 475 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC6"), |
| 476 | }, |
| 477 | .driver_data = (void *)&kempld_platform_data_generic, |
| 478 | .callback = kempld_create_platform_device, |
| 479 | }, { |
| 480 | .ident = "CNTG", |
| 481 | .matches = { |
| 482 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 483 | DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-PC"), |
| 484 | }, |
| 485 | .driver_data = (void *)&kempld_platform_data_generic, |
| 486 | .callback = kempld_create_platform_device, |
| 487 | }, { |
| 488 | .ident = "CNTG", |
| 489 | .matches = { |
| 490 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 491 | DMI_MATCH(DMI_BOARD_NAME, "COMe-bPC2"), |
| 492 | }, |
| 493 | .driver_data = (void *)&kempld_platform_data_generic, |
| 494 | .callback = kempld_create_platform_device, |
| 495 | }, { |
| 496 | .ident = "CNTX", |
| 497 | .matches = { |
| 498 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 499 | DMI_MATCH(DMI_BOARD_NAME, "PXT"), |
| 500 | }, |
| 501 | .driver_data = (void *)&kempld_platform_data_generic, |
| 502 | .callback = kempld_create_platform_device, |
| 503 | }, { |
| 504 | .ident = "FRI2", |
| 505 | .matches = { |
| 506 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 507 | DMI_MATCH(DMI_BIOS_VERSION, "FRI2"), |
| 508 | }, |
| 509 | .driver_data = (void *)&kempld_platform_data_generic, |
| 510 | .callback = kempld_create_platform_device, |
| 511 | }, { |
| 512 | .ident = "FRI2", |
| 513 | .matches = { |
| 514 | DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"), |
| 515 | }, |
| 516 | .driver_data = (void *)&kempld_platform_data_generic, |
| 517 | .callback = kempld_create_platform_device, |
| 518 | }, { |
| 519 | .ident = "MBR1", |
| 520 | .matches = { |
| 521 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 522 | DMI_MATCH(DMI_BOARD_NAME, "ETX-OH"), |
| 523 | }, |
| 524 | .driver_data = (void *)&kempld_platform_data_generic, |
| 525 | .callback = kempld_create_platform_device, |
| 526 | }, { |
| 527 | .ident = "NTC1", |
| 528 | .matches = { |
| 529 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 530 | DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"), |
| 531 | }, |
| 532 | .driver_data = (void *)&kempld_platform_data_generic, |
| 533 | .callback = kempld_create_platform_device, |
| 534 | }, { |
| 535 | .ident = "NTC1", |
| 536 | .matches = { |
| 537 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 538 | DMI_MATCH(DMI_BOARD_NAME, "nETXe-TT"), |
| 539 | }, |
| 540 | .driver_data = (void *)&kempld_platform_data_generic, |
| 541 | .callback = kempld_create_platform_device, |
| 542 | }, { |
| 543 | .ident = "NTC1", |
| 544 | .matches = { |
| 545 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 546 | DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"), |
| 547 | }, |
| 548 | .driver_data = (void *)&kempld_platform_data_generic, |
| 549 | .callback = kempld_create_platform_device, |
| 550 | }, { |
| 551 | .ident = "NUP1", |
| 552 | .matches = { |
| 553 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 554 | DMI_MATCH(DMI_BOARD_NAME, "COMe-mCT"), |
| 555 | }, |
| 556 | .driver_data = (void *)&kempld_platform_data_generic, |
| 557 | .callback = kempld_create_platform_device, |
| 558 | }, { |
| 559 | .ident = "UNP1", |
| 560 | .matches = { |
| 561 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 562 | DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-DC"), |
| 563 | }, |
| 564 | .driver_data = (void *)&kempld_platform_data_generic, |
| 565 | .callback = kempld_create_platform_device, |
| 566 | }, { |
| 567 | .ident = "UNP1", |
| 568 | .matches = { |
| 569 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 570 | DMI_MATCH(DMI_BOARD_NAME, "COMe-cDC2"), |
| 571 | }, |
| 572 | .driver_data = (void *)&kempld_platform_data_generic, |
| 573 | .callback = kempld_create_platform_device, |
| 574 | }, { |
| 575 | .ident = "UNTG", |
| 576 | .matches = { |
| 577 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 578 | DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-PC"), |
| 579 | }, |
| 580 | .driver_data = (void *)&kempld_platform_data_generic, |
| 581 | .callback = kempld_create_platform_device, |
| 582 | }, { |
| 583 | .ident = "UNTG", |
| 584 | .matches = { |
| 585 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 586 | DMI_MATCH(DMI_BOARD_NAME, "COMe-cPC2"), |
| 587 | }, |
| 588 | .driver_data = (void *)&kempld_platform_data_generic, |
| 589 | .callback = kempld_create_platform_device, |
| 590 | }, { |
| 591 | .ident = "UUP6", |
| 592 | .matches = { |
| 593 | DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"), |
| 594 | DMI_MATCH(DMI_BOARD_NAME, "COMe-cCT6"), |
| 595 | }, |
| 596 | .driver_data = (void *)&kempld_platform_data_generic, |
| 597 | .callback = kempld_create_platform_device, |
| 598 | }, |
| 599 | {} |
| 600 | }; |
| 601 | MODULE_DEVICE_TABLE(dmi, kempld_dmi_table); |
| 602 | |
| 603 | static int __init kempld_init(void) |
| 604 | { |
| 605 | const struct dmi_system_id *id; |
| 606 | int ret; |
| 607 | |
| 608 | if (force_device_id[0]) { |
| 609 | for (id = kempld_dmi_table; id->matches[0].slot != DMI_NONE; id++) |
| 610 | if (strstr(id->ident, force_device_id)) |
| 611 | if (id->callback && id->callback(id)) |
| 612 | break; |
| 613 | if (id->matches[0].slot == DMI_NONE) |
| 614 | return -ENODEV; |
| 615 | } else { |
| 616 | if (!dmi_check_system(kempld_dmi_table)) |
| 617 | return -ENODEV; |
| 618 | } |
| 619 | |
| 620 | ret = platform_driver_register(&kempld_driver); |
| 621 | if (ret) |
| 622 | return ret; |
| 623 | |
| 624 | return 0; |
| 625 | } |
| 626 | |
| 627 | static void __exit kempld_exit(void) |
| 628 | { |
| 629 | if (kempld_pdev) |
| 630 | platform_device_unregister(kempld_pdev); |
| 631 | |
| 632 | platform_driver_unregister(&kempld_driver); |
| 633 | } |
| 634 | |
| 635 | module_init(kempld_init); |
| 636 | module_exit(kempld_exit); |
| 637 | |
| 638 | MODULE_DESCRIPTION("KEM PLD Core Driver"); |
| 639 | MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>"); |
| 640 | MODULE_LICENSE("GPL"); |
| 641 | MODULE_ALIAS("platform:kempld-core"); |