1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * macsonic.c 4 * 5 * (C) 2005 Finn Thain 6 * 7 * Converted to DMA API, converted to unified driver model, made it work as 8 * a module again, and from the mac68k project, introduced more 32-bit cards 9 * and dhd's support for 16-bit cards. 10 * 11 * (C) 1998 Alan Cox 12 * 13 * Debugging Andreas Ehliar, Michael Schmitz 14 * 15 * Based on code 16 * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de) 17 * 18 * This driver is based on work from Andreas Busse, but most of 19 * the code is rewritten. 20 * 21 * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de) 22 * 23 * A driver for the Mac onboard Sonic ethernet chip. 24 * 25 * 98/12/21 MSch: judged from tests on Q800, it's basically working, 26 * but eating up both receive and transmit resources 27 * and duplicating packets. Needs more testing. 28 * 29 * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed. 30 * 31 * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems 32 * on centris. 33 */ 34 35 #include <linux/kernel.h> 36 #include <linux/module.h> 37 #include <linux/types.h> 38 #include <linux/fcntl.h> 39 #include <linux/gfp.h> 40 #include <linux/interrupt.h> 41 #include <linux/ioport.h> 42 #include <linux/in.h> 43 #include <linux/string.h> 44 #include <linux/delay.h> 45 #include <linux/nubus.h> 46 #include <linux/errno.h> 47 #include <linux/netdevice.h> 48 #include <linux/etherdevice.h> 49 #include <linux/skbuff.h> 50 #include <linux/platform_device.h> 51 #include <linux/dma-mapping.h> 52 #include <linux/bitrev.h> 53 #include <linux/slab.h> 54 55 #include <asm/pgtable.h> 56 #include <asm/io.h> 57 #include <asm/hwtest.h> 58 #include <asm/dma.h> 59 #include <asm/macintosh.h> 60 #include <asm/macints.h> 61 #include <asm/mac_via.h> 62 63 #include "sonic.h" 64 65 /* These should basically be bus-size and endian independent (since 66 the SONIC is at least smart enough that it uses the same endianness 67 as the host, unlike certain less enlightened Macintosh NICs) */ 68 #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \ 69 + lp->reg_offset)) 70 #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \ 71 + lp->reg_offset)) 72 73 /* For onboard SONIC */ 74 #define ONBOARD_SONIC_REGISTERS 0x50F0A000 75 #define ONBOARD_SONIC_PROM_BASE 0x50f08000 76 77 enum macsonic_type { 78 MACSONIC_DUODOCK, 79 MACSONIC_APPLE, 80 MACSONIC_APPLE16, 81 MACSONIC_DAYNA, 82 MACSONIC_DAYNALINK 83 }; 84 85 /* For the built-in SONIC in the Duo Dock */ 86 #define DUODOCK_SONIC_REGISTERS 0xe10000 87 #define DUODOCK_SONIC_PROM_BASE 0xe12000 88 89 /* For Apple-style NuBus SONIC */ 90 #define APPLE_SONIC_REGISTERS 0 91 #define APPLE_SONIC_PROM_BASE 0x40000 92 93 /* Daynalink LC SONIC */ 94 #define DAYNALINK_PROM_BASE 0x400000 95 96 /* For Dayna-style NuBus SONIC (haven't seen one yet) */ 97 #define DAYNA_SONIC_REGISTERS 0x180000 98 /* This is what OpenBSD says. However, this is definitely in NuBus 99 ROM space so we should be able to get it by walking the NuBus 100 resource directories */ 101 #define DAYNA_SONIC_MAC_ADDR 0xffe004 102 103 #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr) 104 105 /* 106 * For reversing the PROM address 107 */ 108 109 static inline void bit_reverse_addr(unsigned char addr[6]) 110 { 111 int i; 112 113 for(i = 0; i < 6; i++) 114 addr[i] = bitrev8(addr[i]); 115 } 116 117 static irqreturn_t macsonic_interrupt(int irq, void *dev_id) 118 { 119 irqreturn_t result; 120 unsigned long flags; 121 122 local_irq_save(flags); 123 result = sonic_interrupt(irq, dev_id); 124 local_irq_restore(flags); 125 return result; 126 } 127 128 static int macsonic_open(struct net_device* dev) 129 { 130 int retval; 131 132 retval = request_irq(dev->irq, sonic_interrupt, 0, "sonic", dev); 133 if (retval) { 134 printk(KERN_ERR "%s: unable to get IRQ %d.\n", 135 dev->name, dev->irq); 136 goto err; 137 } 138 /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes 139 * in at priority level 3. However, we sometimes get the level 2 inter- 140 * rupt as well, which must prevent re-entrance of the sonic handler. 141 */ 142 if (dev->irq == IRQ_AUTO_3) { 143 retval = request_irq(IRQ_NUBUS_9, macsonic_interrupt, 0, 144 "sonic", dev); 145 if (retval) { 146 printk(KERN_ERR "%s: unable to get IRQ %d.\n", 147 dev->name, IRQ_NUBUS_9); 148 goto err_irq; 149 } 150 } 151 retval = sonic_open(dev); 152 if (retval) 153 goto err_irq_nubus; 154 return 0; 155 156 err_irq_nubus: 157 if (dev->irq == IRQ_AUTO_3) 158 free_irq(IRQ_NUBUS_9, dev); 159 err_irq: 160 free_irq(dev->irq, dev); 161 err: 162 return retval; 163 } 164 165 static int macsonic_close(struct net_device* dev) 166 { 167 int err; 168 err = sonic_close(dev); 169 free_irq(dev->irq, dev); 170 if (dev->irq == IRQ_AUTO_3) 171 free_irq(IRQ_NUBUS_9, dev); 172 return err; 173 } 174 175 static const struct net_device_ops macsonic_netdev_ops = { 176 .ndo_open = macsonic_open, 177 .ndo_stop = macsonic_close, 178 .ndo_start_xmit = sonic_send_packet, 179 .ndo_set_rx_mode = sonic_multicast_list, 180 .ndo_tx_timeout = sonic_tx_timeout, 181 .ndo_get_stats = sonic_get_stats, 182 .ndo_validate_addr = eth_validate_addr, 183 .ndo_set_mac_address = eth_mac_addr, 184 }; 185 186 static int macsonic_init(struct net_device *dev) 187 { 188 struct sonic_local* lp = netdev_priv(dev); 189 190 /* Allocate the entire chunk of memory for the descriptors. 191 Note that this cannot cross a 64K boundary. */ 192 lp->descriptors = dma_alloc_coherent(lp->device, 193 SIZEOF_SONIC_DESC * 194 SONIC_BUS_SCALE(lp->dma_bitmode), 195 &lp->descriptors_laddr, 196 GFP_KERNEL); 197 if (lp->descriptors == NULL) 198 return -ENOMEM; 199 200 /* Now set up the pointers to point to the appropriate places */ 201 lp->cda = lp->descriptors; 202 lp->tda = lp->cda + (SIZEOF_SONIC_CDA 203 * SONIC_BUS_SCALE(lp->dma_bitmode)); 204 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS 205 * SONIC_BUS_SCALE(lp->dma_bitmode)); 206 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS 207 * SONIC_BUS_SCALE(lp->dma_bitmode)); 208 209 lp->cda_laddr = lp->descriptors_laddr; 210 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA 211 * SONIC_BUS_SCALE(lp->dma_bitmode)); 212 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS 213 * SONIC_BUS_SCALE(lp->dma_bitmode)); 214 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS 215 * SONIC_BUS_SCALE(lp->dma_bitmode)); 216 217 dev->netdev_ops = &macsonic_netdev_ops; 218 dev->watchdog_timeo = TX_TIMEOUT; 219 220 /* 221 * clear tally counter 222 */ 223 SONIC_WRITE(SONIC_CRCT, 0xffff); 224 SONIC_WRITE(SONIC_FAET, 0xffff); 225 SONIC_WRITE(SONIC_MPT, 0xffff); 226 227 return 0; 228 } 229 230 #define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \ 231 memcmp(mac, "\x00\xA0\x40", 3) && \ 232 memcmp(mac, "\x00\x80\x19", 3) && \ 233 memcmp(mac, "\x00\x05\x02", 3)) 234 235 static void mac_onboard_sonic_ethernet_addr(struct net_device *dev) 236 { 237 struct sonic_local *lp = netdev_priv(dev); 238 const int prom_addr = ONBOARD_SONIC_PROM_BASE; 239 unsigned short val; 240 241 /* 242 * On NuBus boards we can sometimes look in the ROM resources. 243 * No such luck for comm-slot/onboard. 244 * On the PowerBook 520, the PROM base address is a mystery. 245 */ 246 if (hwreg_present((void *)prom_addr)) { 247 int i; 248 249 for (i = 0; i < 6; i++) 250 dev->dev_addr[i] = SONIC_READ_PROM(i); 251 if (!INVALID_MAC(dev->dev_addr)) 252 return; 253 254 /* 255 * Most of the time, the address is bit-reversed. The NetBSD 256 * source has a rather long and detailed historical account of 257 * why this is so. 258 */ 259 bit_reverse_addr(dev->dev_addr); 260 if (!INVALID_MAC(dev->dev_addr)) 261 return; 262 263 /* 264 * If we still have what seems to be a bogus address, we'll 265 * look in the CAM. The top entry should be ours. 266 */ 267 printk(KERN_WARNING "macsonic: MAC address in PROM seems " 268 "to be invalid, trying CAM\n"); 269 } else { 270 printk(KERN_WARNING "macsonic: cannot read MAC address from " 271 "PROM, trying CAM\n"); 272 } 273 274 /* This only works if MacOS has already initialized the card. */ 275 276 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); 277 SONIC_WRITE(SONIC_CEP, 15); 278 279 val = SONIC_READ(SONIC_CAP2); 280 dev->dev_addr[5] = val >> 8; 281 dev->dev_addr[4] = val & 0xff; 282 val = SONIC_READ(SONIC_CAP1); 283 dev->dev_addr[3] = val >> 8; 284 dev->dev_addr[2] = val & 0xff; 285 val = SONIC_READ(SONIC_CAP0); 286 dev->dev_addr[1] = val >> 8; 287 dev->dev_addr[0] = val & 0xff; 288 289 if (!INVALID_MAC(dev->dev_addr)) 290 return; 291 292 /* Still nonsense ... messed up someplace! */ 293 294 printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 " 295 "seems invalid, will use a random MAC\n"); 296 eth_hw_addr_random(dev); 297 } 298 299 static int mac_onboard_sonic_probe(struct net_device *dev) 300 { 301 struct sonic_local* lp = netdev_priv(dev); 302 int sr; 303 bool commslot = macintosh_config->expansion_type == MAC_EXP_PDS_COMM; 304 305 /* Bogus probing, on the models which may or may not have 306 Ethernet (BTW, the Ethernet *is* always at the same 307 address, and nothing else lives there, at least if Apple's 308 documentation is to be believed) */ 309 if (commslot || macintosh_config->ident == MAC_MODEL_C610) { 310 int card_present; 311 312 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS); 313 if (!card_present) { 314 pr_info("Onboard/comm-slot SONIC not found\n"); 315 return -ENODEV; 316 } 317 } 318 319 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset 320 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ 321 dev->base_addr = ONBOARD_SONIC_REGISTERS; 322 if (via_alt_mapping) 323 dev->irq = IRQ_AUTO_3; 324 else 325 dev->irq = IRQ_NUBUS_9; 326 327 /* The PowerBook's SONIC is 16 bit always. */ 328 if (macintosh_config->ident == MAC_MODEL_PB520) { 329 lp->reg_offset = 0; 330 lp->dma_bitmode = SONIC_BITMODE16; 331 } else if (commslot) { 332 /* Some of the comm-slot cards are 16 bit. But some 333 of them are not. The 32-bit cards use offset 2 and 334 have known revisions, we try reading the revision 335 register at offset 2, if we don't get a known revision 336 we assume 16 bit at offset 0. */ 337 lp->reg_offset = 2; 338 lp->dma_bitmode = SONIC_BITMODE16; 339 340 sr = SONIC_READ(SONIC_SR); 341 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101) 342 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */ 343 lp->dma_bitmode = SONIC_BITMODE32; 344 else { 345 lp->dma_bitmode = SONIC_BITMODE16; 346 lp->reg_offset = 0; 347 } 348 } else { 349 /* All onboard cards are at offset 2 with 32 bit DMA. */ 350 lp->reg_offset = 2; 351 lp->dma_bitmode = SONIC_BITMODE32; 352 } 353 354 pr_info("Onboard/comm-slot SONIC, revision 0x%04x, %d bit DMA, register offset %d\n", 355 SONIC_READ(SONIC_SR), lp->dma_bitmode ? 32 : 16, 356 lp->reg_offset); 357 358 /* This is sometimes useful to find out how MacOS configured the card */ 359 pr_debug("%s: DCR=0x%04x, DCR2=0x%04x\n", __func__, 360 SONIC_READ(SONIC_DCR) & 0xffff, 361 SONIC_READ(SONIC_DCR2) & 0xffff); 362 363 /* Software reset, then initialize control registers. */ 364 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); 365 366 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS | 367 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | 368 (lp->dma_bitmode ? SONIC_DCR_DW : 0)); 369 370 /* This *must* be written back to in order to restore the 371 * extended programmable output bits, as it may not have been 372 * initialised since the hardware reset. */ 373 SONIC_WRITE(SONIC_DCR2, 0); 374 375 /* Clear *and* disable interrupts to be on the safe side */ 376 SONIC_WRITE(SONIC_IMR, 0); 377 SONIC_WRITE(SONIC_ISR, 0x7fff); 378 379 /* Now look for the MAC address. */ 380 mac_onboard_sonic_ethernet_addr(dev); 381 382 pr_info("SONIC ethernet @%08lx, MAC %pM, IRQ %d\n", 383 dev->base_addr, dev->dev_addr, dev->irq); 384 385 /* Shared init code */ 386 return macsonic_init(dev); 387 } 388 389 static int mac_sonic_nubus_ethernet_addr(struct net_device *dev, 390 unsigned long prom_addr, int id) 391 { 392 int i; 393 for(i = 0; i < 6; i++) 394 dev->dev_addr[i] = SONIC_READ_PROM(i); 395 396 /* Some of the addresses are bit-reversed */ 397 if (id != MACSONIC_DAYNA) 398 bit_reverse_addr(dev->dev_addr); 399 400 return 0; 401 } 402 403 static int macsonic_ident(struct nubus_rsrc *fres) 404 { 405 if (fres->dr_hw == NUBUS_DRHW_ASANTE_LC && 406 fres->dr_sw == NUBUS_DRSW_SONIC_LC) 407 return MACSONIC_DAYNALINK; 408 if (fres->dr_hw == NUBUS_DRHW_SONIC && 409 fres->dr_sw == NUBUS_DRSW_APPLE) { 410 /* There has to be a better way to do this... */ 411 if (strstr(fres->board->name, "DuoDock")) 412 return MACSONIC_DUODOCK; 413 else 414 return MACSONIC_APPLE; 415 } 416 417 if (fres->dr_hw == NUBUS_DRHW_SMC9194 && 418 fres->dr_sw == NUBUS_DRSW_DAYNA) 419 return MACSONIC_DAYNA; 420 421 if (fres->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC && 422 fres->dr_sw == 0) { /* huh? */ 423 return MACSONIC_APPLE16; 424 } 425 return -1; 426 } 427 428 static int mac_sonic_nubus_probe_board(struct nubus_board *board, int id, 429 struct net_device *dev) 430 { 431 struct sonic_local* lp = netdev_priv(dev); 432 unsigned long base_addr, prom_addr; 433 u16 sonic_dcr; 434 int reg_offset, dma_bitmode; 435 436 switch (id) { 437 case MACSONIC_DUODOCK: 438 base_addr = board->slot_addr + DUODOCK_SONIC_REGISTERS; 439 prom_addr = board->slot_addr + DUODOCK_SONIC_PROM_BASE; 440 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 | 441 SONIC_DCR_TFT0; 442 reg_offset = 2; 443 dma_bitmode = SONIC_BITMODE32; 444 break; 445 case MACSONIC_APPLE: 446 base_addr = board->slot_addr + APPLE_SONIC_REGISTERS; 447 prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE; 448 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0; 449 reg_offset = 0; 450 dma_bitmode = SONIC_BITMODE32; 451 break; 452 case MACSONIC_APPLE16: 453 base_addr = board->slot_addr + APPLE_SONIC_REGISTERS; 454 prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE; 455 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | 456 SONIC_DCR_PO1 | SONIC_DCR_BMS; 457 reg_offset = 0; 458 dma_bitmode = SONIC_BITMODE16; 459 break; 460 case MACSONIC_DAYNALINK: 461 base_addr = board->slot_addr + APPLE_SONIC_REGISTERS; 462 prom_addr = board->slot_addr + DAYNALINK_PROM_BASE; 463 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | 464 SONIC_DCR_PO1 | SONIC_DCR_BMS; 465 reg_offset = 0; 466 dma_bitmode = SONIC_BITMODE16; 467 break; 468 case MACSONIC_DAYNA: 469 base_addr = board->slot_addr + DAYNA_SONIC_REGISTERS; 470 prom_addr = board->slot_addr + DAYNA_SONIC_MAC_ADDR; 471 sonic_dcr = SONIC_DCR_BMS | 472 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1; 473 reg_offset = 0; 474 dma_bitmode = SONIC_BITMODE16; 475 break; 476 default: 477 printk(KERN_ERR "macsonic: WTF, id is %d\n", id); 478 return -ENODEV; 479 } 480 481 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset 482 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ 483 dev->base_addr = base_addr; 484 lp->reg_offset = reg_offset; 485 lp->dma_bitmode = dma_bitmode; 486 dev->irq = SLOT2IRQ(board->slot); 487 488 dev_info(&board->dev, "%s, revision 0x%04x, %d bit DMA, register offset %d\n", 489 board->name, SONIC_READ(SONIC_SR), 490 lp->dma_bitmode ? 32 : 16, lp->reg_offset); 491 492 /* This is sometimes useful to find out how MacOS configured the card */ 493 dev_dbg(&board->dev, "%s: DCR=0x%04x, DCR2=0x%04x\n", __func__, 494 SONIC_READ(SONIC_DCR) & 0xffff, 495 SONIC_READ(SONIC_DCR2) & 0xffff); 496 497 /* Software reset, then initialize control registers. */ 498 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); 499 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0)); 500 /* This *must* be written back to in order to restore the 501 * extended programmable output bits, since it may not have been 502 * initialised since the hardware reset. */ 503 SONIC_WRITE(SONIC_DCR2, 0); 504 505 /* Clear *and* disable interrupts to be on the safe side */ 506 SONIC_WRITE(SONIC_IMR, 0); 507 SONIC_WRITE(SONIC_ISR, 0x7fff); 508 509 /* Now look for the MAC address. */ 510 if (mac_sonic_nubus_ethernet_addr(dev, prom_addr, id) != 0) 511 return -ENODEV; 512 513 dev_info(&board->dev, "SONIC ethernet @%08lx, MAC %pM, IRQ %d\n", 514 dev->base_addr, dev->dev_addr, dev->irq); 515 516 /* Shared init code */ 517 return macsonic_init(dev); 518 } 519 520 static int mac_sonic_platform_probe(struct platform_device *pdev) 521 { 522 struct net_device *dev; 523 struct sonic_local *lp; 524 int err; 525 526 dev = alloc_etherdev(sizeof(struct sonic_local)); 527 if (!dev) 528 return -ENOMEM; 529 530 lp = netdev_priv(dev); 531 lp->device = &pdev->dev; 532 SET_NETDEV_DEV(dev, &pdev->dev); 533 platform_set_drvdata(pdev, dev); 534 535 err = mac_onboard_sonic_probe(dev); 536 if (err) 537 goto out; 538 539 sonic_msg_init(dev); 540 541 err = register_netdev(dev); 542 if (err) 543 goto out; 544 545 return 0; 546 547 out: 548 free_netdev(dev); 549 550 return err; 551 } 552 553 MODULE_DESCRIPTION("Macintosh SONIC ethernet driver"); 554 MODULE_ALIAS("platform:macsonic"); 555 556 #include "sonic.c" 557 558 static int mac_sonic_platform_remove(struct platform_device *pdev) 559 { 560 struct net_device *dev = platform_get_drvdata(pdev); 561 struct sonic_local* lp = netdev_priv(dev); 562 563 unregister_netdev(dev); 564 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), 565 lp->descriptors, lp->descriptors_laddr); 566 free_netdev(dev); 567 568 return 0; 569 } 570 571 static struct platform_driver mac_sonic_platform_driver = { 572 .probe = mac_sonic_platform_probe, 573 .remove = mac_sonic_platform_remove, 574 .driver = { 575 .name = "macsonic", 576 }, 577 }; 578 579 static int mac_sonic_nubus_probe(struct nubus_board *board) 580 { 581 struct net_device *ndev; 582 struct sonic_local *lp; 583 struct nubus_rsrc *fres; 584 int id = -1; 585 int err; 586 587 /* The platform driver will handle a PDS or Comm Slot card (even if 588 * it has a pseudoslot declaration ROM). 589 */ 590 if (macintosh_config->expansion_type == MAC_EXP_PDS_COMM) 591 return -ENODEV; 592 593 for_each_board_func_rsrc(board, fres) { 594 if (fres->category != NUBUS_CAT_NETWORK || 595 fres->type != NUBUS_TYPE_ETHERNET) 596 continue; 597 598 id = macsonic_ident(fres); 599 if (id != -1) 600 break; 601 } 602 if (!fres) 603 return -ENODEV; 604 605 ndev = alloc_etherdev(sizeof(struct sonic_local)); 606 if (!ndev) 607 return -ENOMEM; 608 609 lp = netdev_priv(ndev); 610 lp->device = &board->dev; 611 SET_NETDEV_DEV(ndev, &board->dev); 612 613 err = mac_sonic_nubus_probe_board(board, id, ndev); 614 if (err) 615 goto out; 616 617 sonic_msg_init(ndev); 618 619 err = register_netdev(ndev); 620 if (err) 621 goto out; 622 623 nubus_set_drvdata(board, ndev); 624 625 return 0; 626 627 out: 628 free_netdev(ndev); 629 return err; 630 } 631 632 static int mac_sonic_nubus_remove(struct nubus_board *board) 633 { 634 struct net_device *ndev = nubus_get_drvdata(board); 635 struct sonic_local *lp = netdev_priv(ndev); 636 637 unregister_netdev(ndev); 638 dma_free_coherent(lp->device, 639 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), 640 lp->descriptors, lp->descriptors_laddr); 641 free_netdev(ndev); 642 643 return 0; 644 } 645 646 static struct nubus_driver mac_sonic_nubus_driver = { 647 .probe = mac_sonic_nubus_probe, 648 .remove = mac_sonic_nubus_remove, 649 .driver = { 650 .name = "macsonic-nubus", 651 .owner = THIS_MODULE, 652 }, 653 }; 654 655 static int perr, nerr; 656 657 static int __init mac_sonic_init(void) 658 { 659 perr = platform_driver_register(&mac_sonic_platform_driver); 660 nerr = nubus_driver_register(&mac_sonic_nubus_driver); 661 return 0; 662 } 663 module_init(mac_sonic_init); 664 665 static void __exit mac_sonic_exit(void) 666 { 667 if (!perr) 668 platform_driver_unregister(&mac_sonic_platform_driver); 669 if (!nerr) 670 nubus_driver_unregister(&mac_sonic_nubus_driver); 671 } 672 module_exit(mac_sonic_exit); 673