1 /*- 2 * Copyright (c) 2006 M. Warner Losh. All rights reserved. 3 * Copyright (c) 2009 Oleksandr Tymoshenko. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 #include "opt_platform.h" 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/bio.h> 34 #include <sys/bus.h> 35 #include <sys/conf.h> 36 #include <sys/kernel.h> 37 #include <sys/kthread.h> 38 #include <sys/lock.h> 39 #include <sys/mbuf.h> 40 #include <sys/malloc.h> 41 #include <sys/module.h> 42 #include <sys/mutex.h> 43 #include <geom/geom_disk.h> 44 45 #ifdef FDT 46 #include <dev/fdt/fdt_common.h> 47 #include <dev/ofw/ofw_bus_subr.h> 48 #include <dev/ofw/openfirm.h> 49 #endif 50 51 #include <dev/spibus/spi.h> 52 #include "spibus_if.h" 53 54 #include <dev/flash/mx25lreg.h> 55 56 #define FL_NONE 0x00 57 #define FL_ERASE_4K 0x01 58 #define FL_ERASE_32K 0x02 59 #define FL_ENABLE_4B_ADDR 0x04 60 #define FL_DISABLE_4B_ADDR 0x08 61 62 /* 63 * Define the sectorsize to be a smaller size rather than the flash 64 * sector size. Trying to run FFS off of a 64k flash sector size 65 * results in a completely un-usable system. 66 */ 67 #define MX25L_SECTORSIZE 512 68 69 struct mx25l_flash_ident 70 { 71 const char *name; 72 uint8_t manufacturer_id; 73 uint16_t device_id; 74 unsigned int sectorsize; 75 unsigned int sectorcount; 76 unsigned int flags; 77 }; 78 79 struct mx25l_softc 80 { 81 device_t sc_dev; 82 uint8_t sc_manufacturer_id; 83 uint16_t sc_device_id; 84 unsigned int sc_sectorsize; 85 struct mtx sc_mtx; 86 struct disk *sc_disk; 87 struct proc *sc_p; 88 struct bio_queue_head sc_bio_queue; 89 unsigned int sc_flags; 90 }; 91 92 #define M25PXX_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 93 #define M25PXX_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 94 #define M25PXX_LOCK_INIT(_sc) \ 95 mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), \ 96 "mx25l", MTX_DEF) 97 #define M25PXX_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx); 98 #define M25PXX_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED); 99 #define M25PXX_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED); 100 101 /* disk routines */ 102 static int mx25l_open(struct disk *dp); 103 static int mx25l_close(struct disk *dp); 104 static int mx25l_ioctl(struct disk *, u_long, void *, int, struct thread *); 105 static void mx25l_strategy(struct bio *bp); 106 static int mx25l_getattr(struct bio *bp); 107 static void mx25l_task(void *arg); 108 109 struct mx25l_flash_ident flash_devices[] = { 110 { "en25f32", 0x1c, 0x3116, 64 * 1024, 64, FL_NONE }, 111 { "en25p32", 0x1c, 0x2016, 64 * 1024, 64, FL_NONE }, 112 { "en25p64", 0x1c, 0x2017, 64 * 1024, 128, FL_NONE }, 113 { "en25q64", 0x1c, 0x3017, 64 * 1024, 128, FL_ERASE_4K }, 114 { "m25p64", 0x20, 0x2017, 64 * 1024, 128, FL_NONE }, 115 { "mx25ll32", 0xc2, 0x2016, 64 * 1024, 64, FL_NONE }, 116 { "mx25ll64", 0xc2, 0x2017, 64 * 1024, 128, FL_NONE }, 117 { "mx25ll128", 0xc2, 0x2018, 64 * 1024, 256, FL_ERASE_4K | FL_ERASE_32K }, 118 { "mx25ll256", 0xc2, 0x2019, 64 * 1024, 512, FL_ERASE_4K | FL_ERASE_32K | FL_ENABLE_4B_ADDR }, 119 { "s25fl032", 0x01, 0x0215, 64 * 1024, 64, FL_NONE }, 120 { "s25fl064", 0x01, 0x0216, 64 * 1024, 128, FL_NONE }, 121 { "s25fl128", 0x01, 0x2018, 64 * 1024, 256, FL_NONE }, 122 { "s25fl256s", 0x01, 0x0219, 64 * 1024, 512, FL_NONE }, 123 { "SST25VF032B", 0xbf, 0x254a, 64 * 1024, 64, FL_ERASE_4K | FL_ERASE_32K }, 124 125 /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */ 126 { "w25x32", 0xef, 0x3016, 64 * 1024, 64, FL_ERASE_4K }, 127 { "w25x64", 0xef, 0x3017, 64 * 1024, 128, FL_ERASE_4K }, 128 { "w25q32", 0xef, 0x4016, 64 * 1024, 64, FL_ERASE_4K }, 129 { "w25q64", 0xef, 0x4017, 64 * 1024, 128, FL_ERASE_4K }, 130 { "w25q64bv", 0xef, 0x4017, 64 * 1024, 128, FL_ERASE_4K }, 131 { "w25q128", 0xef, 0x4018, 64 * 1024, 256, FL_ERASE_4K }, 132 { "w25q256", 0xef, 0x4019, 64 * 1024, 512, FL_ERASE_4K }, 133 }; 134 135 static uint8_t 136 mx25l_get_status(device_t dev) 137 { 138 uint8_t txBuf[2], rxBuf[2]; 139 struct spi_command cmd; 140 int err; 141 142 memset(&cmd, 0, sizeof(cmd)); 143 memset(txBuf, 0, sizeof(txBuf)); 144 memset(rxBuf, 0, sizeof(rxBuf)); 145 146 txBuf[0] = CMD_READ_STATUS; 147 cmd.tx_cmd = txBuf; 148 cmd.rx_cmd = rxBuf; 149 cmd.rx_cmd_sz = 2; 150 cmd.tx_cmd_sz = 2; 151 err = SPIBUS_TRANSFER(device_get_parent(dev), dev, &cmd); 152 return (rxBuf[1]); 153 } 154 155 static void 156 mx25l_wait_for_device_ready(device_t dev) 157 { 158 while ((mx25l_get_status(dev) & STATUS_WIP)) 159 continue; 160 } 161 162 static struct mx25l_flash_ident* 163 mx25l_get_device_ident(struct mx25l_softc *sc) 164 { 165 device_t dev = sc->sc_dev; 166 uint8_t txBuf[8], rxBuf[8]; 167 struct spi_command cmd; 168 uint8_t manufacturer_id; 169 uint16_t dev_id; 170 int err, i; 171 172 memset(&cmd, 0, sizeof(cmd)); 173 memset(txBuf, 0, sizeof(txBuf)); 174 memset(rxBuf, 0, sizeof(rxBuf)); 175 176 txBuf[0] = CMD_READ_IDENT; 177 cmd.tx_cmd = &txBuf; 178 cmd.rx_cmd = &rxBuf; 179 /* 180 * Some compatible devices has extended two-bytes ID 181 * We'll use only manufacturer/deviceid atm 182 */ 183 cmd.tx_cmd_sz = 4; 184 cmd.rx_cmd_sz = 4; 185 err = SPIBUS_TRANSFER(device_get_parent(dev), dev, &cmd); 186 if (err) 187 return (NULL); 188 189 manufacturer_id = rxBuf[1]; 190 dev_id = (rxBuf[2] << 8) | (rxBuf[3]); 191 192 for (i = 0; 193 i < nitems(flash_devices); i++) { 194 if ((flash_devices[i].manufacturer_id == manufacturer_id) && 195 (flash_devices[i].device_id == dev_id)) 196 return &flash_devices[i]; 197 } 198 199 printf("Unknown SPI flash device. Vendor: %02x, device id: %04x\n", 200 manufacturer_id, dev_id); 201 return (NULL); 202 } 203 204 static void 205 mx25l_set_writable(device_t dev, int writable) 206 { 207 uint8_t txBuf[1], rxBuf[1]; 208 struct spi_command cmd; 209 int err; 210 211 memset(&cmd, 0, sizeof(cmd)); 212 memset(txBuf, 0, sizeof(txBuf)); 213 memset(rxBuf, 0, sizeof(rxBuf)); 214 215 txBuf[0] = writable ? CMD_WRITE_ENABLE : CMD_WRITE_DISABLE; 216 cmd.tx_cmd = txBuf; 217 cmd.rx_cmd = rxBuf; 218 cmd.rx_cmd_sz = 1; 219 cmd.tx_cmd_sz = 1; 220 err = SPIBUS_TRANSFER(device_get_parent(dev), dev, &cmd); 221 } 222 223 static void 224 mx25l_erase_cmd(device_t dev, off_t sector, uint8_t ecmd) 225 { 226 struct mx25l_softc *sc; 227 uint8_t txBuf[5], rxBuf[5]; 228 struct spi_command cmd; 229 int err; 230 231 sc = device_get_softc(dev); 232 233 mx25l_wait_for_device_ready(dev); 234 mx25l_set_writable(dev, 1); 235 236 memset(&cmd, 0, sizeof(cmd)); 237 memset(txBuf, 0, sizeof(txBuf)); 238 memset(rxBuf, 0, sizeof(rxBuf)); 239 240 txBuf[0] = ecmd; 241 cmd.tx_cmd = txBuf; 242 cmd.rx_cmd = rxBuf; 243 if (sc->sc_flags & FL_ENABLE_4B_ADDR) { 244 cmd.rx_cmd_sz = 5; 245 cmd.tx_cmd_sz = 5; 246 txBuf[1] = ((sector >> 24) & 0xff); 247 txBuf[2] = ((sector >> 16) & 0xff); 248 txBuf[3] = ((sector >> 8) & 0xff); 249 txBuf[4] = (sector & 0xff); 250 } else { 251 cmd.rx_cmd_sz = 4; 252 cmd.tx_cmd_sz = 4; 253 txBuf[1] = ((sector >> 16) & 0xff); 254 txBuf[2] = ((sector >> 8) & 0xff); 255 txBuf[3] = (sector & 0xff); 256 } 257 err = SPIBUS_TRANSFER(device_get_parent(dev), dev, &cmd); 258 } 259 260 static int 261 mx25l_write(device_t dev, off_t offset, caddr_t data, off_t count) 262 { 263 struct mx25l_softc *sc; 264 uint8_t txBuf[8], rxBuf[8]; 265 struct spi_command cmd; 266 off_t write_offset; 267 long bytes_to_write, bytes_writen; 268 device_t pdev; 269 int err = 0; 270 271 pdev = device_get_parent(dev); 272 sc = device_get_softc(dev); 273 274 if (sc->sc_flags & FL_ENABLE_4B_ADDR) { 275 cmd.tx_cmd_sz = 5; 276 cmd.rx_cmd_sz = 5; 277 } else { 278 cmd.tx_cmd_sz = 4; 279 cmd.rx_cmd_sz = 4; 280 } 281 282 bytes_writen = 0; 283 write_offset = offset; 284 285 /* 286 * Use the erase sectorsize here since blocks are fully erased 287 * first before they're written to. 288 */ 289 if (count % sc->sc_sectorsize != 0 || offset % sc->sc_sectorsize != 0) 290 return (EIO); 291 292 /* 293 * Assume here that we write per-sector only 294 * and sector size should be 256 bytes aligned 295 */ 296 KASSERT(write_offset % FLASH_PAGE_SIZE == 0, 297 ("offset for BIO_WRITE is not page size (%d bytes) aligned", 298 FLASH_PAGE_SIZE)); 299 300 /* 301 * Maximum write size for CMD_PAGE_PROGRAM is 302 * FLASH_PAGE_SIZE, so split data to chunks 303 * FLASH_PAGE_SIZE bytes eash and write them 304 * one by one 305 */ 306 while (bytes_writen < count) { 307 /* 308 * If we crossed sector boundary - erase next sector 309 */ 310 if (((offset + bytes_writen) % sc->sc_sectorsize) == 0) 311 mx25l_erase_cmd(dev, offset + bytes_writen, CMD_SECTOR_ERASE); 312 313 txBuf[0] = CMD_PAGE_PROGRAM; 314 if (sc->sc_flags & FL_ENABLE_4B_ADDR) { 315 txBuf[1] = ((write_offset >> 24) & 0xff); 316 txBuf[2] = ((write_offset >> 16) & 0xff); 317 txBuf[3] = ((write_offset >> 8) & 0xff); 318 txBuf[4] = (write_offset & 0xff); 319 } else { 320 txBuf[1] = ((write_offset >> 16) & 0xff); 321 txBuf[2] = ((write_offset >> 8) & 0xff); 322 txBuf[3] = (write_offset & 0xff); 323 } 324 325 bytes_to_write = MIN(FLASH_PAGE_SIZE, 326 count - bytes_writen); 327 cmd.tx_cmd = txBuf; 328 cmd.rx_cmd = rxBuf; 329 cmd.tx_data = data + bytes_writen; 330 cmd.tx_data_sz = bytes_to_write; 331 cmd.rx_data = data + bytes_writen; 332 cmd.rx_data_sz = bytes_to_write; 333 334 /* 335 * Eash completed write operation resets WEL 336 * (write enable latch) to disabled state, 337 * so we re-enable it here 338 */ 339 mx25l_wait_for_device_ready(dev); 340 mx25l_set_writable(dev, 1); 341 342 err = SPIBUS_TRANSFER(pdev, dev, &cmd); 343 if (err) 344 break; 345 346 bytes_writen += bytes_to_write; 347 write_offset += bytes_to_write; 348 } 349 350 return (err); 351 } 352 353 static int 354 mx25l_read(device_t dev, off_t offset, caddr_t data, off_t count) 355 { 356 struct mx25l_softc *sc; 357 uint8_t txBuf[8], rxBuf[8]; 358 struct spi_command cmd; 359 device_t pdev; 360 int err = 0; 361 362 pdev = device_get_parent(dev); 363 sc = device_get_softc(dev); 364 365 /* 366 * Enforce the disk read sectorsize not the erase sectorsize. 367 * In this way, smaller read IO is possible,dramatically 368 * speeding up filesystem/geom_compress access. 369 */ 370 if (count % sc->sc_disk->d_sectorsize != 0 371 || offset % sc->sc_disk->d_sectorsize != 0) 372 return (EIO); 373 374 txBuf[0] = CMD_FAST_READ; 375 if (sc->sc_flags & FL_ENABLE_4B_ADDR) { 376 cmd.tx_cmd_sz = 6; 377 cmd.rx_cmd_sz = 6; 378 379 txBuf[1] = ((offset >> 24) & 0xff); 380 txBuf[2] = ((offset >> 16) & 0xff); 381 txBuf[3] = ((offset >> 8) & 0xff); 382 txBuf[4] = (offset & 0xff); 383 /* Dummy byte */ 384 txBuf[5] = 0; 385 } else { 386 cmd.tx_cmd_sz = 5; 387 cmd.rx_cmd_sz = 5; 388 389 txBuf[1] = ((offset >> 16) & 0xff); 390 txBuf[2] = ((offset >> 8) & 0xff); 391 txBuf[3] = (offset & 0xff); 392 /* Dummy byte */ 393 txBuf[4] = 0; 394 } 395 396 cmd.tx_cmd = txBuf; 397 cmd.rx_cmd = rxBuf; 398 cmd.tx_data = data; 399 cmd.tx_data_sz = count; 400 cmd.rx_data = data; 401 cmd.rx_data_sz = count; 402 403 err = SPIBUS_TRANSFER(pdev, dev, &cmd); 404 405 return (err); 406 } 407 408 static int 409 mx25l_set_4b_mode(device_t dev, uint8_t command) 410 { 411 uint8_t txBuf[1], rxBuf[1]; 412 struct spi_command cmd; 413 device_t pdev; 414 int err; 415 416 memset(&cmd, 0, sizeof(cmd)); 417 memset(txBuf, 0, sizeof(txBuf)); 418 memset(rxBuf, 0, sizeof(rxBuf)); 419 420 pdev = device_get_parent(dev); 421 422 cmd.tx_cmd_sz = cmd.rx_cmd_sz = 1; 423 424 cmd.tx_cmd = txBuf; 425 cmd.rx_cmd = rxBuf; 426 427 txBuf[0] = command; 428 429 err = SPIBUS_TRANSFER(pdev, dev, &cmd); 430 431 mx25l_wait_for_device_ready(dev); 432 433 return (err); 434 } 435 436 #ifdef FDT 437 static struct ofw_compat_data compat_data[] = { 438 { "st,m25p", 1 }, 439 { "jedec,spi-nor", 1 }, 440 { NULL, 0 }, 441 }; 442 #endif 443 444 static int 445 mx25l_probe(device_t dev) 446 { 447 #ifdef FDT 448 int i; 449 450 if (!ofw_bus_status_okay(dev)) 451 return (ENXIO); 452 453 /* First try to match the compatible property to the compat_data */ 454 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 1) 455 goto found; 456 457 /* 458 * Next, try to find a compatible device using the names in the 459 * flash_devices structure 460 */ 461 for (i = 0; i < nitems(flash_devices); i++) 462 if (ofw_bus_is_compatible(dev, flash_devices[i].name)) 463 goto found; 464 465 return (ENXIO); 466 found: 467 #endif 468 device_set_desc(dev, "M25Pxx Flash Family"); 469 470 return (0); 471 } 472 473 static int 474 mx25l_attach(device_t dev) 475 { 476 struct mx25l_softc *sc; 477 struct mx25l_flash_ident *ident; 478 479 sc = device_get_softc(dev); 480 sc->sc_dev = dev; 481 M25PXX_LOCK_INIT(sc); 482 483 ident = mx25l_get_device_ident(sc); 484 if (ident == NULL) 485 return (ENXIO); 486 487 mx25l_wait_for_device_ready(sc->sc_dev); 488 489 sc->sc_disk = disk_alloc(); 490 sc->sc_disk->d_open = mx25l_open; 491 sc->sc_disk->d_close = mx25l_close; 492 sc->sc_disk->d_strategy = mx25l_strategy; 493 sc->sc_disk->d_getattr = mx25l_getattr; 494 sc->sc_disk->d_ioctl = mx25l_ioctl; 495 sc->sc_disk->d_name = "flash/spi"; 496 sc->sc_disk->d_drv1 = sc; 497 sc->sc_disk->d_maxsize = DFLTPHYS; 498 sc->sc_disk->d_sectorsize = MX25L_SECTORSIZE; 499 sc->sc_disk->d_mediasize = ident->sectorsize * ident->sectorcount; 500 sc->sc_disk->d_unit = device_get_unit(sc->sc_dev); 501 sc->sc_disk->d_dump = NULL; /* NB: no dumps */ 502 /* Sectorsize for erase operations */ 503 sc->sc_sectorsize = ident->sectorsize; 504 sc->sc_flags = ident->flags; 505 506 if (sc->sc_flags & FL_ENABLE_4B_ADDR) 507 mx25l_set_4b_mode(dev, CMD_ENTER_4B_MODE); 508 509 if (sc->sc_flags & FL_DISABLE_4B_ADDR) 510 mx25l_set_4b_mode(dev, CMD_EXIT_4B_MODE); 511 512 /* NB: use stripesize to hold the erase/region size for RedBoot */ 513 sc->sc_disk->d_stripesize = ident->sectorsize; 514 515 disk_create(sc->sc_disk, DISK_VERSION); 516 bioq_init(&sc->sc_bio_queue); 517 518 kproc_create(&mx25l_task, sc, &sc->sc_p, 0, 0, "task: mx25l flash"); 519 device_printf(sc->sc_dev, "%s, sector %d bytes, %d sectors\n", 520 ident->name, ident->sectorsize, ident->sectorcount); 521 522 return (0); 523 } 524 525 static int 526 mx25l_detach(device_t dev) 527 { 528 529 return (EIO); 530 } 531 532 static int 533 mx25l_open(struct disk *dp) 534 { 535 return (0); 536 } 537 538 static int 539 mx25l_close(struct disk *dp) 540 { 541 542 return (0); 543 } 544 545 static int 546 mx25l_ioctl(struct disk *dp, u_long cmd, void *data, int fflag, 547 struct thread *td) 548 { 549 550 return (EINVAL); 551 } 552 553 static void 554 mx25l_strategy(struct bio *bp) 555 { 556 struct mx25l_softc *sc; 557 558 sc = (struct mx25l_softc *)bp->bio_disk->d_drv1; 559 M25PXX_LOCK(sc); 560 bioq_disksort(&sc->sc_bio_queue, bp); 561 wakeup(sc); 562 M25PXX_UNLOCK(sc); 563 } 564 565 static int 566 mx25l_getattr(struct bio *bp) 567 { 568 struct mx25l_softc *sc; 569 device_t dev; 570 571 if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL) 572 return (ENXIO); 573 574 sc = bp->bio_disk->d_drv1; 575 dev = sc->sc_dev; 576 577 if (strcmp(bp->bio_attribute, "SPI::device") == 0) { 578 if (bp->bio_length != sizeof(dev)) 579 return (EFAULT); 580 bcopy(&dev, bp->bio_data, sizeof(dev)); 581 } else 582 return (-1); 583 return (0); 584 } 585 586 static void 587 mx25l_task(void *arg) 588 { 589 struct mx25l_softc *sc = (struct mx25l_softc*)arg; 590 struct bio *bp; 591 device_t dev; 592 593 for (;;) { 594 dev = sc->sc_dev; 595 M25PXX_LOCK(sc); 596 do { 597 bp = bioq_first(&sc->sc_bio_queue); 598 if (bp == NULL) 599 msleep(sc, &sc->sc_mtx, PRIBIO, "jobqueue", 0); 600 } while (bp == NULL); 601 bioq_remove(&sc->sc_bio_queue, bp); 602 M25PXX_UNLOCK(sc); 603 604 switch (bp->bio_cmd) { 605 case BIO_READ: 606 bp->bio_error = mx25l_read(dev, bp->bio_offset, 607 bp->bio_data, bp->bio_bcount); 608 break; 609 case BIO_WRITE: 610 bp->bio_error = mx25l_write(dev, bp->bio_offset, 611 bp->bio_data, bp->bio_bcount); 612 break; 613 default: 614 bp->bio_error = EINVAL; 615 } 616 617 618 biodone(bp); 619 } 620 } 621 622 static devclass_t mx25l_devclass; 623 624 static device_method_t mx25l_methods[] = { 625 /* Device interface */ 626 DEVMETHOD(device_probe, mx25l_probe), 627 DEVMETHOD(device_attach, mx25l_attach), 628 DEVMETHOD(device_detach, mx25l_detach), 629 630 { 0, 0 } 631 }; 632 633 static driver_t mx25l_driver = { 634 "mx25l", 635 mx25l_methods, 636 sizeof(struct mx25l_softc), 637 }; 638 639 DRIVER_MODULE(mx25l, spibus, mx25l_driver, mx25l_devclass, 0, 0); 640