drivers/net/macsonic.c

   1 /*
   2  * macsonic.c
   3  *
   4  * (C) 2005 Finn Thain
   5  *
   6  * Converted to DMA API, converted to unified driver model, made it work as
   7  * a module again, and from the mac68k project, introduced more 32-bit cards
   8  * and dhd's support for 16-bit cards.
   9  *
  10  * (C) 1998 Alan Cox
  11  *
  12  * Debugging Andreas Ehliar, Michael Schmitz
  13  *
  14  * Based on code
  15  * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
  16  *
  17  * This driver is based on work from Andreas Busse, but most of
  18  * the code is rewritten.
  19  *
  20  * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
  21  *
  22  * A driver for the Mac onboard Sonic ethernet chip.
  23  *
  24  * 98/12/21 MSch: judged from tests on Q800, it's basically working,
  25  *                but eating up both receive and transmit resources
  26  *                and duplicating packets. Needs more testing.
  27  *
  28  * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
  29  *
  30  * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
  31  *          on centris.
  32  */
  33
  34 #include <linux/kernel.h>
  35 #include <linux/module.h>
  36 #include <linux/types.h>
  37 #include <linux/fcntl.h>
  38 #include <linux/interrupt.h>
  39 #include <linux/init.h>
  40 #include <linux/ioport.h>
  41 #include <linux/in.h>
  42 #include <linux/slab.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
  53 #include <asm/bootinfo.h>
  54 #include <asm/system.h>
  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 static char mac_sonic_string[] = "macsonic";
  64 static struct platform_device *mac_sonic_device;
  65
  66 #include "sonic.h"
  67
  68 /* These should basically be bus-size and endian independent (since
  69    the SONIC is at least smart enough that it uses the same endianness
  70    as the host, unlike certain less enlightened Macintosh NICs) */
  71 #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
  72               + lp->reg_offset))
  73 #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
  74               + lp->reg_offset))
  75
  76 /* use 0 for production, 1 for verification, >1 for debug */
  77 #ifdef SONIC_DEBUG
  78 static unsigned int sonic_debug = SONIC_DEBUG;
  79 #else
  80 static unsigned int sonic_debug = 1;
  81 #endif
  82
  83 static int sonic_version_printed;
  84
  85 extern int mac_onboard_sonic_probe(struct net_device* dev);
  86 extern int mac_nubus_sonic_probe(struct net_device* dev);
  87
  88 /* For onboard SONIC */
  89 #define ONBOARD_SONIC_REGISTERS 0x50F0A000
  90 #define ONBOARD_SONIC_PROM_BASE 0x50f08000
  91
  92 enum macsonic_type {
  93         MACSONIC_DUODOCK,
  94         MACSONIC_APPLE,
  95         MACSONIC_APPLE16,
  96         MACSONIC_DAYNA,
  97         MACSONIC_DAYNALINK
  98 };
  99
 100 /* For the built-in SONIC in the Duo Dock */
 101 #define DUODOCK_SONIC_REGISTERS 0xe10000
 102 #define DUODOCK_SONIC_PROM_BASE 0xe12000
 103
 104 /* For Apple-style NuBus SONIC */
 105 #define APPLE_SONIC_REGISTERS   0
 106 #define APPLE_SONIC_PROM_BASE   0x40000
 107
 108 /* Daynalink LC SONIC */
 109 #define DAYNALINK_PROM_BASE 0x400000
 110
 111 /* For Dayna-style NuBus SONIC (haven't seen one yet) */
 112 #define DAYNA_SONIC_REGISTERS   0x180000
 113 /* This is what OpenBSD says.  However, this is definitely in NuBus
 114    ROM space so we should be able to get it by walking the NuBus
 115    resource directories */
 116 #define DAYNA_SONIC_MAC_ADDR    0xffe004
 117
 118 #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
 119
 120 /*
 121  * For reversing the PROM address
 122  */
 123
 124 static inline void bit_reverse_addr(unsigned char addr[6])
 125 {
 126         int i;
 127
 128         for(i = 0; i < 6; i++)
 129                 addr[i] = bitrev8(addr[i]);
 130 }
 131
 132 int __init macsonic_init(struct net_device* dev)
 133 {
 134         struct sonic_local* lp = netdev_priv(dev);
 135
 136         /* Allocate the entire chunk of memory for the descriptors.
 137            Note that this cannot cross a 64K boundary. */
 138         if ((lp->descriptors = dma_alloc_coherent(lp->device,
 139                     SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
 140                     &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
 141                 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
 142                 return -ENOMEM;
 143         }
 144
 145         /* Now set up the pointers to point to the appropriate places */
 146         lp->cda = lp->descriptors;
 147         lp->tda = lp->cda + (SIZEOF_SONIC_CDA
 148                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 149         lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
 150                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 151         lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
 152                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 153
 154         lp->cda_laddr = lp->descriptors_laddr;
 155         lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
 156                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 157         lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
 158                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 159         lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
 160                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 161
 162         dev->open = sonic_open;
 163         dev->stop = sonic_close;
 164         dev->hard_start_xmit = sonic_send_packet;
 165         dev->get_stats = sonic_get_stats;
 166         dev->set_multicast_list = &sonic_multicast_list;
 167         dev->tx_timeout = sonic_tx_timeout;
 168         dev->watchdog_timeo = TX_TIMEOUT;
 169
 170         /*
 171          * clear tally counter
 172          */
 173         SONIC_WRITE(SONIC_CRCT, 0xffff);
 174         SONIC_WRITE(SONIC_FAET, 0xffff);
 175         SONIC_WRITE(SONIC_MPT, 0xffff);
 176
 177         return 0;
 178 }
 179
 180 int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
 181 {
 182         struct sonic_local *lp = netdev_priv(dev);
 183         const int prom_addr = ONBOARD_SONIC_PROM_BASE;
 184         int i;
 185
 186         /* On NuBus boards we can sometimes look in the ROM resources.
 187            No such luck for comm-slot/onboard. */
 188         for(i = 0; i < 6; i++)
 189                 dev->dev_addr[i] = SONIC_READ_PROM(i);
 190
 191         /* Most of the time, the address is bit-reversed.  The NetBSD
 192            source has a rather long and detailed historical account of
 193            why this is so. */
 194         if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
 195             memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
 196             memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
 197             memcmp(dev->dev_addr, "\x00\x05\x02", 3))
 198                 bit_reverse_addr(dev->dev_addr);
 199         else
 200                 return 0;
 201
 202         /* If we still have what seems to be a bogus address, we'll
 203            look in the CAM.  The top entry should be ours. */
 204         /* Danger! This only works if MacOS has already initialized
 205            the card... */
 206         if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
 207             memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
 208             memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
 209             memcmp(dev->dev_addr, "\x00\x05\x02", 3))
 210         {
 211                 unsigned short val;
 212
 213                 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
 214
 215                 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 216                 SONIC_WRITE(SONIC_CEP, 15);
 217
 218                 val = SONIC_READ(SONIC_CAP2);
 219                 dev->dev_addr[5] = val >> 8;
 220                 dev->dev_addr[4] = val & 0xff;
 221                 val = SONIC_READ(SONIC_CAP1);
 222                 dev->dev_addr[3] = val >> 8;
 223                 dev->dev_addr[2] = val & 0xff;
 224                 val = SONIC_READ(SONIC_CAP0);
 225                 dev->dev_addr[1] = val >> 8;
 226                 dev->dev_addr[0] = val & 0xff;
 227
 228                 printk(KERN_INFO "HW Address from CAM 15: ");
 229                 for (i = 0; i < 6; i++) {
 230                         printk("%2.2x", dev->dev_addr[i]);
 231                         if (i < 5)
 232                                 printk(":");
 233                 }
 234                 printk("\n");
 235         } else return 0;
 236
 237         if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
 238             memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
 239             memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
 240             memcmp(dev->dev_addr, "\x00\x05\x02", 3))
 241         {
 242                 /*
 243                  * Still nonsense ... messed up someplace!
 244                  */
 245                 printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n");
 246                 return -EIO;
 247         } else return 0;
 248 }
 249
 250 int __init mac_onboard_sonic_probe(struct net_device* dev)
 251 {
 252         /* Bwahahaha */
 253         static int once_is_more_than_enough;
 254         struct sonic_local* lp = netdev_priv(dev);
 255         int sr;
 256         int commslot = 0;
 257
 258         if (once_is_more_than_enough)
 259                 return -ENODEV;
 260         once_is_more_than_enough = 1;
 261
 262         if (!MACH_IS_MAC)
 263                 return -ENODEV;
 264
 265         if (macintosh_config->ether_type != MAC_ETHER_SONIC)
 266                 return -ENODEV;
 267
 268         printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
 269
 270         /* Bogus probing, on the models which may or may not have
 271            Ethernet (BTW, the Ethernet *is* always at the same
 272            address, and nothing else lives there, at least if Apple's
 273            documentation is to be believed) */
 274         if (macintosh_config->ident == MAC_MODEL_Q630 ||
 275             macintosh_config->ident == MAC_MODEL_P588 ||
 276             macintosh_config->ident == MAC_MODEL_P575 ||
 277             macintosh_config->ident == MAC_MODEL_C610) {
 278                 unsigned long flags;
 279                 int card_present;
 280
 281                 local_irq_save(flags);
 282                 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
 283                 local_irq_restore(flags);
 284
 285                 if (!card_present) {
 286                         printk("none.\n");
 287                         return -ENODEV;
 288                 }
 289                 commslot = 1;
 290         }
 291
 292         printk("yes\n");
 293
 294         /* Danger!  My arms are flailing wildly!  You *must* set lp->reg_offset
 295          * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
 296         dev->base_addr = ONBOARD_SONIC_REGISTERS;
 297         if (via_alt_mapping)
 298                 dev->irq = IRQ_AUTO_3;
 299         else
 300                 dev->irq = IRQ_NUBUS_9;
 301
 302         if (!sonic_version_printed) {
 303                 printk(KERN_INFO "%s", version);
 304                 sonic_version_printed = 1;
 305         }
 306         printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
 307                lp->device->bus_id, dev->base_addr);
 308
 309         /* The PowerBook's SONIC is 16 bit always. */
 310         if (macintosh_config->ident == MAC_MODEL_PB520) {
 311                 lp->reg_offset = 0;
 312                 lp->dma_bitmode = SONIC_BITMODE16;
 313                 sr = SONIC_READ(SONIC_SR);
 314         } else if (commslot) {
 315                 /* Some of the comm-slot cards are 16 bit.  But some
 316                    of them are not.  The 32-bit cards use offset 2 and
 317                    have known revisions, we try reading the revision
 318                    register at offset 2, if we don't get a known revision
 319                    we assume 16 bit at offset 0.  */
 320                 lp->reg_offset = 2;
 321                 lp->dma_bitmode = SONIC_BITMODE16;
 322
 323                 sr = SONIC_READ(SONIC_SR);
 324                 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
 325                         /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
 326                         lp->dma_bitmode = SONIC_BITMODE32;
 327                 else {
 328                         lp->dma_bitmode = SONIC_BITMODE16;
 329                         lp->reg_offset = 0;
 330                         sr = SONIC_READ(SONIC_SR);
 331                 }
 332         } else {
 333                 /* All onboard cards are at offset 2 with 32 bit DMA. */
 334                 lp->reg_offset = 2;
 335                 lp->dma_bitmode = SONIC_BITMODE32;
 336                 sr = SONIC_READ(SONIC_SR);
 337         }
 338         printk(KERN_INFO
 339                "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
 340                lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
 341
 342 #if 0 /* This is sometimes useful to find out how MacOS configured the card. */
 343         printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
 344                SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
 345 #endif
 346
 347         /* Software reset, then initialize control registers. */
 348         SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 349
 350         SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
 351                                SONIC_DCR_RFT1  | SONIC_DCR_TFT0 |
 352                                (lp->dma_bitmode ? SONIC_DCR_DW : 0));
 353
 354         /* This *must* be written back to in order to restore the
 355          * extended programmable output bits, as it may not have been
 356          * initialised since the hardware reset. */
 357         SONIC_WRITE(SONIC_DCR2, 0);
 358
 359         /* Clear *and* disable interrupts to be on the safe side */
 360         SONIC_WRITE(SONIC_IMR, 0);
 361         SONIC_WRITE(SONIC_ISR, 0x7fff);
 362
 363         /* Now look for the MAC address. */
 364         if (mac_onboard_sonic_ethernet_addr(dev) != 0)
 365                 return -ENODEV;
 366
 367         /* Shared init code */
 368         return macsonic_init(dev);
 369 }
 370
 371 int __init mac_nubus_sonic_ethernet_addr(struct net_device* dev,
 372                                          unsigned long prom_addr,
 373                                          int id)
 374 {
 375         int i;
 376         for(i = 0; i < 6; i++)
 377                 dev->dev_addr[i] = SONIC_READ_PROM(i);
 378
 379         /* Some of the addresses are bit-reversed */
 380         if (id != MACSONIC_DAYNA)
 381                 bit_reverse_addr(dev->dev_addr);
 382
 383         return 0;
 384 }
 385
 386 int __init macsonic_ident(struct nubus_dev* ndev)
 387 {
 388         if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
 389             ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
 390                 return MACSONIC_DAYNALINK;
 391         if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
 392             ndev->dr_sw == NUBUS_DRSW_APPLE) {
 393                 /* There has to be a better way to do this... */
 394                 if (strstr(ndev->board->name, "DuoDock"))
 395                         return MACSONIC_DUODOCK;
 396                 else
 397                         return MACSONIC_APPLE;
 398         }
 399
 400         if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
 401             ndev->dr_sw == NUBUS_DRSW_DAYNA)
 402                 return MACSONIC_DAYNA;
 403
 404         if (ndev->dr_hw == NUBUS_DRHW_SONIC_LC &&
 405             ndev->dr_sw == 0) { /* huh? */
 406                 return MACSONIC_APPLE16;
 407         }
 408         return -1;
 409 }
 410
 411 int __init mac_nubus_sonic_probe(struct net_device* dev)
 412 {
 413         static int slots;
 414         struct nubus_dev* ndev = NULL;
 415         struct sonic_local* lp = netdev_priv(dev);
 416         unsigned long base_addr, prom_addr;
 417         u16 sonic_dcr;
 418         int id = -1;
 419         int reg_offset, dma_bitmode;
 420
 421         /* Find the first SONIC that hasn't been initialized already */
 422         while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
 423                                        NUBUS_TYPE_ETHERNET, ndev)) != NULL)
 424         {
 425                 /* Have we seen it already? */
 426                 if (slots & (1<<ndev->board->slot))
 427                         continue;
 428                 slots |= 1<<ndev->board->slot;
 429
 430                 /* Is it one of ours? */
 431                 if ((id = macsonic_ident(ndev)) != -1)
 432                         break;
 433         }
 434
 435         if (ndev == NULL)
 436                 return -ENODEV;
 437
 438         switch (id) {
 439         case MACSONIC_DUODOCK:
 440                 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
 441                 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
 442                 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
 443                             SONIC_DCR_TFT0;
 444                 reg_offset = 2;
 445                 dma_bitmode = SONIC_BITMODE32;
 446                 break;
 447         case MACSONIC_APPLE:
 448                 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
 449                 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
 450                 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
 451                 reg_offset = 0;
 452                 dma_bitmode = SONIC_BITMODE32;
 453                 break;
 454         case MACSONIC_APPLE16:
 455                 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
 456                 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
 457                 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
 458                             SONIC_DCR_PO1 | SONIC_DCR_BMS;
 459                 reg_offset = 0;
 460                 dma_bitmode = SONIC_BITMODE16;
 461                 break;
 462         case MACSONIC_DAYNALINK:
 463                 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
 464                 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
 465                 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
 466                             SONIC_DCR_PO1 | SONIC_DCR_BMS;
 467                 reg_offset = 0;
 468                 dma_bitmode = SONIC_BITMODE16;
 469                 break;
 470         case MACSONIC_DAYNA:
 471                 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
 472                 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
 473                 sonic_dcr = SONIC_DCR_BMS |
 474                             SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
 475                 reg_offset = 0;
 476                 dma_bitmode = SONIC_BITMODE16;
 477                 break;
 478         default:
 479                 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
 480                 return -ENODEV;
 481         }
 482
 483         /* Danger!  My arms are flailing wildly!  You *must* set lp->reg_offset
 484          * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
 485         dev->base_addr = base_addr;
 486         lp->reg_offset = reg_offset;
 487         lp->dma_bitmode = dma_bitmode;
 488         dev->irq = SLOT2IRQ(ndev->board->slot);
 489
 490         if (!sonic_version_printed) {
 491                 printk(KERN_INFO "%s", version);
 492                 sonic_version_printed = 1;
 493         }
 494         printk(KERN_INFO "%s: %s in slot %X\n",
 495                lp->device->bus_id, ndev->board->name, ndev->board->slot);
 496         printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
 497                lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
 498
 499 #if 0 /* This is sometimes useful to find out how MacOS configured the card. */
 500         printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
 501                SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
 502 #endif
 503
 504         /* Software reset, then initialize control registers. */
 505         SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 506         SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
 507         /* This *must* be written back to in order to restore the
 508          * extended programmable output bits, since it may not have been
 509          * initialised since the hardware reset. */
 510         SONIC_WRITE(SONIC_DCR2, 0);
 511
 512         /* Clear *and* disable interrupts to be on the safe side */
 513         SONIC_WRITE(SONIC_IMR, 0);
 514         SONIC_WRITE(SONIC_ISR, 0x7fff);
 515
 516         /* Now look for the MAC address. */
 517         if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
 518                 return -ENODEV;
 519
 520         /* Shared init code */
 521         return macsonic_init(dev);
 522 }
 523
 524 static int __init mac_sonic_probe(struct platform_device *device)
 525 {
 526         struct net_device *dev;
 527         struct sonic_local *lp;
 528         int err;
 529         int i;
 530
 531         dev = alloc_etherdev(sizeof(struct sonic_local));
 532         if (!dev)
 533                 return -ENOMEM;
 534
 535         lp = netdev_priv(dev);
 536         lp->device = &device->dev;
 537         SET_NETDEV_DEV(dev, &device->dev);
 538         SET_MODULE_OWNER(dev);
 539
 540         /* This will catch fatal stuff like -ENOMEM as well as success */
 541         err = mac_onboard_sonic_probe(dev);
 542         if (err == 0)
 543                 goto found;
 544         if (err != -ENODEV)
 545                 goto out;
 546         err = mac_nubus_sonic_probe(dev);
 547         if (err)
 548                 goto out;
 549 found:
 550         err = register_netdev(dev);
 551         if (err)
 552                 goto out;
 553
 554         printk("%s: MAC ", dev->name);
 555         for (i = 0; i < 6; i++) {
 556                 printk("%2.2x", dev->dev_addr[i]);
 557                 if (i < 5)
 558                         printk(":");
 559         }
 560         printk(" IRQ %d\n", dev->irq);
 561
 562         return 0;
 563
 564 out:
 565         free_netdev(dev);
 566
 567         return err;
 568 }
 569
 570 MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
 571 module_param(sonic_debug, int, 0);
 572 MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
 573
 574 #define SONIC_IRQ_FLAG IRQ_FLG_FAST
 575
 576 #include "sonic.c"
 577
 578 static int __devexit mac_sonic_device_remove (struct platform_device *device)
 579 {
 580         struct net_device *dev = platform_get_drvdata(device);
 581         struct sonic_local* lp = netdev_priv(dev);
 582
 583         unregister_netdev (dev);
 584         dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
 585                           lp->descriptors, lp->descriptors_laddr);
 586         free_netdev (dev);
 587
 588         return 0;
 589 }
 590
 591 static struct platform_driver mac_sonic_driver = {
 592         .probe  = mac_sonic_probe,
 593         .remove = __devexit_p(mac_sonic_device_remove),
 594         .driver = {
 595                 .name = mac_sonic_string,
 596         },
 597 };
 598
 599 static int __init mac_sonic_init_module(void)
 600 {
 601         int err;
 602
 603         if ((err = platform_driver_register(&mac_sonic_driver))) {
 604                 printk(KERN_ERR "Driver registration failed\n");
 605                 return err;
 606         }
 607
 608         mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
 609         if (!mac_sonic_device) {
 610                 goto out_unregister;
 611         }
 612
 613         if (platform_device_add(mac_sonic_device)) {
 614                 platform_device_put(mac_sonic_device);
 615                 mac_sonic_device = NULL;
 616         }
 617
 618         return 0;
 619
 620 out_unregister:
 621         platform_driver_unregister(&mac_sonic_driver);
 622
 623         return -ENOMEM;
 624 }
 625
 626 static void __exit mac_sonic_cleanup_module(void)
 627 {
 628         platform_driver_unregister(&mac_sonic_driver);
 629
 630         if (mac_sonic_device) {
 631                 platform_device_unregister(mac_sonic_device);
 632                 mac_sonic_device = NULL;
 633         }
 634 }
 635
 636 module_init(mac_sonic_init_module);
 637 module_exit(mac_sonic_cleanup_module);