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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/gfp.h>
39#include <linux/interrupt.h>
40#include <linux/init.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/bootinfo.h>
56#include <asm/system.h>
57#include <asm/pgtable.h>
58#include <asm/io.h>
59#include <asm/hwtest.h>
60#include <asm/dma.h>
61#include <asm/macintosh.h>
62#include <asm/macints.h>
63#include <asm/mac_via.h>
64
65static char mac_sonic_string[] = "macsonic";
66
67#include "sonic.h"
68
69/* These should basically be bus-size and endian independent (since
70 the SONIC is at least smart enough that it uses the same endianness
71 as the host, unlike certain less enlightened Macintosh NICs) */
72#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
73 + lp->reg_offset))
74#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
75 + lp->reg_offset))
76
77/* use 0 for production, 1 for verification, >1 for debug */
78#ifdef SONIC_DEBUG
79static unsigned int sonic_debug = SONIC_DEBUG;
80#else
81static unsigned int sonic_debug = 1;
82#endif
83
84static int sonic_version_printed;
85
86/* For onboard SONIC */
87#define ONBOARD_SONIC_REGISTERS 0x50F0A000
88#define ONBOARD_SONIC_PROM_BASE 0x50f08000
89
90enum macsonic_type {
91 MACSONIC_DUODOCK,
92 MACSONIC_APPLE,
93 MACSONIC_APPLE16,
94 MACSONIC_DAYNA,
95 MACSONIC_DAYNALINK
96};
97
98/* For the built-in SONIC in the Duo Dock */
99#define DUODOCK_SONIC_REGISTERS 0xe10000
100#define DUODOCK_SONIC_PROM_BASE 0xe12000
101
102/* For Apple-style NuBus SONIC */
103#define APPLE_SONIC_REGISTERS 0
104#define APPLE_SONIC_PROM_BASE 0x40000
105
106/* Daynalink LC SONIC */
107#define DAYNALINK_PROM_BASE 0x400000
108
109/* For Dayna-style NuBus SONIC (haven't seen one yet) */
110#define DAYNA_SONIC_REGISTERS 0x180000
111/* This is what OpenBSD says. However, this is definitely in NuBus
112 ROM space so we should be able to get it by walking the NuBus
113 resource directories */
114#define DAYNA_SONIC_MAC_ADDR 0xffe004
115
116#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
117
118/*
119 * For reversing the PROM address
120 */
121
122static inline void bit_reverse_addr(unsigned char addr[6])
123{
124 int i;
125
126 for(i = 0; i < 6; i++)
127 addr[i] = bitrev8(addr[i]);
128}
129
130static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
131{
132 irqreturn_t result;
133 unsigned long flags;
134
135 local_irq_save(flags);
136 result = sonic_interrupt(irq, dev_id);
137 local_irq_restore(flags);
138 return result;
139}
140
141static int macsonic_open(struct net_device* dev)
142{
143 int retval;
144
145 retval = request_irq(dev->irq, sonic_interrupt, IRQ_FLG_FAST,
146 "sonic", dev);
147 if (retval) {
148 printk(KERN_ERR "%s: unable to get IRQ %d.\n",
149 dev->name, dev->irq);
150 goto err;
151 }
152 /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
153 * in at priority level 3. However, we sometimes get the level 2 inter-
154 * rupt as well, which must prevent re-entrance of the sonic handler.
155 */
156 if (dev->irq == IRQ_AUTO_3) {
157 retval = request_irq(IRQ_NUBUS_9, macsonic_interrupt,
158 IRQ_FLG_FAST, "sonic", dev);
159 if (retval) {
160 printk(KERN_ERR "%s: unable to get IRQ %d.\n",
161 dev->name, IRQ_NUBUS_9);
162 goto err_irq;
163 }
164 }
165 retval = sonic_open(dev);
166 if (retval)
167 goto err_irq_nubus;
168 return 0;
169
170err_irq_nubus:
171 if (dev->irq == IRQ_AUTO_3)
172 free_irq(IRQ_NUBUS_9, dev);
173err_irq:
174 free_irq(dev->irq, dev);
175err:
176 return retval;
177}
178
179static int macsonic_close(struct net_device* dev)
180{
181 int err;
182 err = sonic_close(dev);
183 free_irq(dev->irq, dev);
184 if (dev->irq == IRQ_AUTO_3)
185 free_irq(IRQ_NUBUS_9, dev);
186 return err;
187}
188
189static const struct net_device_ops macsonic_netdev_ops = {
190 .ndo_open = macsonic_open,
191 .ndo_stop = macsonic_close,
192 .ndo_start_xmit = sonic_send_packet,
193 .ndo_set_multicast_list = sonic_multicast_list,
194 .ndo_tx_timeout = sonic_tx_timeout,
195 .ndo_get_stats = sonic_get_stats,
196 .ndo_validate_addr = eth_validate_addr,
197 .ndo_change_mtu = eth_change_mtu,
198 .ndo_set_mac_address = eth_mac_addr,
199};
200
201static int __devinit macsonic_init(struct net_device *dev)
202{
203 struct sonic_local* lp = netdev_priv(dev);
204
205 /* Allocate the entire chunk of memory for the descriptors.
206 Note that this cannot cross a 64K boundary. */
207 if ((lp->descriptors = dma_alloc_coherent(lp->device,
208 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
209 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
210 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n",
211 dev_name(lp->device));
212 return -ENOMEM;
213 }
214
215 /* Now set up the pointers to point to the appropriate places */
216 lp->cda = lp->descriptors;
217 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
218 * SONIC_BUS_SCALE(lp->dma_bitmode));
219 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
220 * SONIC_BUS_SCALE(lp->dma_bitmode));
221 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
222 * SONIC_BUS_SCALE(lp->dma_bitmode));
223
224 lp->cda_laddr = lp->descriptors_laddr;
225 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
226 * SONIC_BUS_SCALE(lp->dma_bitmode));
227 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
228 * SONIC_BUS_SCALE(lp->dma_bitmode));
229 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
230 * SONIC_BUS_SCALE(lp->dma_bitmode));
231
232 dev->netdev_ops = &macsonic_netdev_ops;
233 dev->watchdog_timeo = TX_TIMEOUT;
234
235 /*
236 * clear tally counter
237 */
238 SONIC_WRITE(SONIC_CRCT, 0xffff);
239 SONIC_WRITE(SONIC_FAET, 0xffff);
240 SONIC_WRITE(SONIC_MPT, 0xffff);
241
242 return 0;
243}
244
245#define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \
246 memcmp(mac, "\x00\xA0\x40", 3) && \
247 memcmp(mac, "\x00\x80\x19", 3) && \
248 memcmp(mac, "\x00\x05\x02", 3))
249
250static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev)
251{
252 struct sonic_local *lp = netdev_priv(dev);
253 const int prom_addr = ONBOARD_SONIC_PROM_BASE;
254 unsigned short val;
255
256 /*
257 * On NuBus boards we can sometimes look in the ROM resources.
258 * No such luck for comm-slot/onboard.
259 * On the PowerBook 520, the PROM base address is a mystery.
260 */
261 if (hwreg_present((void *)prom_addr)) {
262 int i;
263
264 for (i = 0; i < 6; i++)
265 dev->dev_addr[i] = SONIC_READ_PROM(i);
266 if (!INVALID_MAC(dev->dev_addr))
267 return;
268
269 /*
270 * Most of the time, the address is bit-reversed. The NetBSD
271 * source has a rather long and detailed historical account of
272 * why this is so.
273 */
274 bit_reverse_addr(dev->dev_addr);
275 if (!INVALID_MAC(dev->dev_addr))
276 return;
277
278 /*
279 * If we still have what seems to be a bogus address, we'll
280 * look in the CAM. The top entry should be ours.
281 */
282 printk(KERN_WARNING "macsonic: MAC address in PROM seems "
283 "to be invalid, trying CAM\n");
284 } else {
285 printk(KERN_WARNING "macsonic: cannot read MAC address from "
286 "PROM, trying CAM\n");
287 }
288
289 /* This only works if MacOS has already initialized the card. */
290
291 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
292 SONIC_WRITE(SONIC_CEP, 15);
293
294 val = SONIC_READ(SONIC_CAP2);
295 dev->dev_addr[5] = val >> 8;
296 dev->dev_addr[4] = val & 0xff;
297 val = SONIC_READ(SONIC_CAP1);
298 dev->dev_addr[3] = val >> 8;
299 dev->dev_addr[2] = val & 0xff;
300 val = SONIC_READ(SONIC_CAP0);
301 dev->dev_addr[1] = val >> 8;
302 dev->dev_addr[0] = val & 0xff;
303
304 if (!INVALID_MAC(dev->dev_addr))
305 return;
306
307 /* Still nonsense ... messed up someplace! */
308
309 printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
310 "seems invalid, will use a random MAC\n");
311 random_ether_addr(dev->dev_addr);
312}
313
314static int __devinit mac_onboard_sonic_probe(struct net_device *dev)
315{
316 /* Bwahahaha */
317 static int once_is_more_than_enough;
318 struct sonic_local* lp = netdev_priv(dev);
319 int sr;
320 int commslot = 0;
321
322 if (once_is_more_than_enough)
323 return -ENODEV;
324 once_is_more_than_enough = 1;
325
326 if (!MACH_IS_MAC)
327 return -ENODEV;
328
329 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
330 return -ENODEV;
331
332 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
333
334 /* Bogus probing, on the models which may or may not have
335 Ethernet (BTW, the Ethernet *is* always at the same
336 address, and nothing else lives there, at least if Apple's
337 documentation is to be believed) */
338 if (macintosh_config->ident == MAC_MODEL_Q630 ||
339 macintosh_config->ident == MAC_MODEL_P588 ||
340 macintosh_config->ident == MAC_MODEL_P575 ||
341 macintosh_config->ident == MAC_MODEL_C610) {
342 unsigned long flags;
343 int card_present;
344
345 local_irq_save(flags);
346 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
347 local_irq_restore(flags);
348
349 if (!card_present) {
350 printk("none.\n");
351 return -ENODEV;
352 }
353 commslot = 1;
354 }
355
356 printk("yes\n");
357
358 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
359 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
360 dev->base_addr = ONBOARD_SONIC_REGISTERS;
361 if (via_alt_mapping)
362 dev->irq = IRQ_AUTO_3;
363 else
364 dev->irq = IRQ_NUBUS_9;
365
366 if (!sonic_version_printed) {
367 printk(KERN_INFO "%s", version);
368 sonic_version_printed = 1;
369 }
370 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
371 dev_name(lp->device), dev->base_addr);
372
373 /* The PowerBook's SONIC is 16 bit always. */
374 if (macintosh_config->ident == MAC_MODEL_PB520) {
375 lp->reg_offset = 0;
376 lp->dma_bitmode = SONIC_BITMODE16;
377 sr = SONIC_READ(SONIC_SR);
378 } else if (commslot) {
379 /* Some of the comm-slot cards are 16 bit. But some
380 of them are not. The 32-bit cards use offset 2 and
381 have known revisions, we try reading the revision
382 register at offset 2, if we don't get a known revision
383 we assume 16 bit at offset 0. */
384 lp->reg_offset = 2;
385 lp->dma_bitmode = SONIC_BITMODE16;
386
387 sr = SONIC_READ(SONIC_SR);
388 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
389 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
390 lp->dma_bitmode = SONIC_BITMODE32;
391 else {
392 lp->dma_bitmode = SONIC_BITMODE16;
393 lp->reg_offset = 0;
394 sr = SONIC_READ(SONIC_SR);
395 }
396 } else {
397 /* All onboard cards are at offset 2 with 32 bit DMA. */
398 lp->reg_offset = 2;
399 lp->dma_bitmode = SONIC_BITMODE32;
400 sr = SONIC_READ(SONIC_SR);
401 }
402 printk(KERN_INFO
403 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
404 dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->reg_offset);
405
406#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
407 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
408 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
409#endif
410
411 /* Software reset, then initialize control registers. */
412 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
413
414 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
415 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
416 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
417
418 /* This *must* be written back to in order to restore the
419 * extended programmable output bits, as it may not have been
420 * initialised since the hardware reset. */
421 SONIC_WRITE(SONIC_DCR2, 0);
422
423 /* Clear *and* disable interrupts to be on the safe side */
424 SONIC_WRITE(SONIC_IMR, 0);
425 SONIC_WRITE(SONIC_ISR, 0x7fff);
426
427 /* Now look for the MAC address. */
428 mac_onboard_sonic_ethernet_addr(dev);
429
430 /* Shared init code */
431 return macsonic_init(dev);
432}
433
434static int __devinit mac_nubus_sonic_ethernet_addr(struct net_device *dev,
435 unsigned long prom_addr,
436 int id)
437{
438 int i;
439 for(i = 0; i < 6; i++)
440 dev->dev_addr[i] = SONIC_READ_PROM(i);
441
442 /* Some of the addresses are bit-reversed */
443 if (id != MACSONIC_DAYNA)
444 bit_reverse_addr(dev->dev_addr);
445
446 return 0;
447}
448
449static int __devinit macsonic_ident(struct nubus_dev *ndev)
450{
451 if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
452 ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
453 return MACSONIC_DAYNALINK;
454 if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
455 ndev->dr_sw == NUBUS_DRSW_APPLE) {
456 /* There has to be a better way to do this... */
457 if (strstr(ndev->board->name, "DuoDock"))
458 return MACSONIC_DUODOCK;
459 else
460 return MACSONIC_APPLE;
461 }
462
463 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
464 ndev->dr_sw == NUBUS_DRSW_DAYNA)
465 return MACSONIC_DAYNA;
466
467 if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
468 ndev->dr_sw == 0) { /* huh? */
469 return MACSONIC_APPLE16;
470 }
471 return -1;
472}
473
474static int __devinit mac_nubus_sonic_probe(struct net_device *dev)
475{
476 static int slots;
477 struct nubus_dev* ndev = NULL;
478 struct sonic_local* lp = netdev_priv(dev);
479 unsigned long base_addr, prom_addr;
480 u16 sonic_dcr;
481 int id = -1;
482 int reg_offset, dma_bitmode;
483
484 /* Find the first SONIC that hasn't been initialized already */
485 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
486 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
487 {
488 /* Have we seen it already? */
489 if (slots & (1<<ndev->board->slot))
490 continue;
491 slots |= 1<<ndev->board->slot;
492
493 /* Is it one of ours? */
494 if ((id = macsonic_ident(ndev)) != -1)
495 break;
496 }
497
498 if (ndev == NULL)
499 return -ENODEV;
500
501 switch (id) {
502 case MACSONIC_DUODOCK:
503 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
504 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
505 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
506 SONIC_DCR_TFT0;
507 reg_offset = 2;
508 dma_bitmode = SONIC_BITMODE32;
509 break;
510 case MACSONIC_APPLE:
511 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
512 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
513 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
514 reg_offset = 0;
515 dma_bitmode = SONIC_BITMODE32;
516 break;
517 case MACSONIC_APPLE16:
518 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
519 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
520 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
521 SONIC_DCR_PO1 | SONIC_DCR_BMS;
522 reg_offset = 0;
523 dma_bitmode = SONIC_BITMODE16;
524 break;
525 case MACSONIC_DAYNALINK:
526 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
527 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
528 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
529 SONIC_DCR_PO1 | SONIC_DCR_BMS;
530 reg_offset = 0;
531 dma_bitmode = SONIC_BITMODE16;
532 break;
533 case MACSONIC_DAYNA:
534 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
535 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
536 sonic_dcr = SONIC_DCR_BMS |
537 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
538 reg_offset = 0;
539 dma_bitmode = SONIC_BITMODE16;
540 break;
541 default:
542 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
543 return -ENODEV;
544 }
545
546 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
547 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
548 dev->base_addr = base_addr;
549 lp->reg_offset = reg_offset;
550 lp->dma_bitmode = dma_bitmode;
551 dev->irq = SLOT2IRQ(ndev->board->slot);
552
553 if (!sonic_version_printed) {
554 printk(KERN_INFO "%s", version);
555 sonic_version_printed = 1;
556 }
557 printk(KERN_INFO "%s: %s in slot %X\n",
558 dev_name(lp->device), ndev->board->name, ndev->board->slot);
559 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
560 dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
561
562#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
563 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
564 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
565#endif
566
567 /* Software reset, then initialize control registers. */
568 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
569 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
570 /* This *must* be written back to in order to restore the
571 * extended programmable output bits, since it may not have been
572 * initialised since the hardware reset. */
573 SONIC_WRITE(SONIC_DCR2, 0);
574
575 /* Clear *and* disable interrupts to be on the safe side */
576 SONIC_WRITE(SONIC_IMR, 0);
577 SONIC_WRITE(SONIC_ISR, 0x7fff);
578
579 /* Now look for the MAC address. */
580 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
581 return -ENODEV;
582
583 /* Shared init code */
584 return macsonic_init(dev);
585}
586
587static int __devinit mac_sonic_probe(struct platform_device *pdev)
588{
589 struct net_device *dev;
590 struct sonic_local *lp;
591 int err;
592
593 dev = alloc_etherdev(sizeof(struct sonic_local));
594 if (!dev)
595 return -ENOMEM;
596
597 lp = netdev_priv(dev);
598 lp->device = &pdev->dev;
599 SET_NETDEV_DEV(dev, &pdev->dev);
600 platform_set_drvdata(pdev, dev);
601
602 /* This will catch fatal stuff like -ENOMEM as well as success */
603 err = mac_onboard_sonic_probe(dev);
604 if (err == 0)
605 goto found;
606 if (err != -ENODEV)
607 goto out;
608 err = mac_nubus_sonic_probe(dev);
609 if (err)
610 goto out;
611found:
612 err = register_netdev(dev);
613 if (err)
614 goto out;
615
616 printk("%s: MAC %pM IRQ %d\n", dev->name, dev->dev_addr, dev->irq);
617
618 return 0;
619
620out:
621 free_netdev(dev);
622
623 return err;
624}
625
626MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
627module_param(sonic_debug, int, 0);
628MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
629MODULE_ALIAS("platform:macsonic");
630
631#include "sonic.c"
632
633static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
634{
635 struct net_device *dev = platform_get_drvdata(pdev);
636 struct sonic_local* lp = netdev_priv(dev);
637
638 unregister_netdev(dev);
639 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
640 lp->descriptors, lp->descriptors_laddr);
641 free_netdev(dev);
642
643 return 0;
644}
645
646static struct platform_driver mac_sonic_driver = {
647 .probe = mac_sonic_probe,
648 .remove = __devexit_p(mac_sonic_device_remove),
649 .driver = {
650 .name = mac_sonic_string,
651 .owner = THIS_MODULE,
652 },
653};
654
655static int __init mac_sonic_init_module(void)
656{
657 return platform_driver_register(&mac_sonic_driver);
658}
659
660static void __exit mac_sonic_cleanup_module(void)
661{
662 platform_driver_unregister(&mac_sonic_driver);
663}
664
665module_init(mac_sonic_init_module);
666module_exit(mac_sonic_cleanup_module);