xref: /openbsd-src/sys/dev/pci/if_dc_pci.c (revision daf88648c0e349d5c02e1504293082072c981640)
1 /*	$OpenBSD: if_dc_pci.c,v 1.55 2006/07/20 02:49:18 brad Exp $	*/
2 
3 /*
4  * Copyright (c) 1997, 1998, 1999
5  *	Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Bill Paul.
18  * 4. Neither the name of the author nor the names of any co-contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32  * THE POSSIBILITY OF SUCH DAMAGE.
33  *
34  * $FreeBSD: src/sys/pci/if_dc.c,v 1.5 2000/01/12 22:24:05 wpaul Exp $
35  */
36 
37 #include "bpfilter.h"
38 
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/mbuf.h>
42 #include <sys/protosw.h>
43 #include <sys/socket.h>
44 #include <sys/ioctl.h>
45 #include <sys/errno.h>
46 #include <sys/timeout.h>
47 #include <sys/malloc.h>
48 #include <sys/kernel.h>
49 #include <sys/device.h>
50 
51 #include <net/if.h>
52 #include <net/if_dl.h>
53 #include <net/if_types.h>
54 
55 #ifdef INET
56 #include <netinet/in.h>
57 #include <netinet/in_systm.h>
58 #include <netinet/in_var.h>
59 #include <netinet/ip.h>
60 #include <netinet/if_ether.h>
61 #endif
62 
63 #include <net/if_media.h>
64 
65 #if NBPFILTER > 0
66 #include <net/bpf.h>
67 #endif
68 
69 #include <dev/mii/mii.h>
70 #include <dev/mii/miivar.h>
71 
72 #include <dev/pci/pcireg.h>
73 #include <dev/pci/pcivar.h>
74 #include <dev/pci/pcidevs.h>
75 
76 #ifdef __sparc64__
77 #include <dev/ofw/openfirm.h>
78 #endif
79 
80 #ifndef __hppa__
81 #define DC_USEIOSPACE
82 #endif
83 
84 #include <dev/ic/dcreg.h>
85 
86 /*
87  * Various supported device vendors/types and their names.
88  */
89 struct dc_type dc_devs[] = {
90 	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21140 },
91 	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21142 },
92 	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9009 },
93 	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9100 },
94 	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9102 },
95 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9511 },
96 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9513 },
97 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AL981 },
98 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN983 },
99 	{ PCI_VENDOR_ASIX, PCI_PRODUCT_ASIX_AX88140A },
100 	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98713 },
101 	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98715 },
102 	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98727 },
103 	{ PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_98713 },
104 	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNIC },
105 	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNICII },
106 	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN1217 },
107 	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN2242 },
108 	{ PCI_VENDOR_CONEXANT, PCI_PRODUCT_CONEXANT_RS7112 },
109 	{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_21145 },
110 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CSHO100BTX },
111 	{ PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN130 },
112 	{ 0, 0 }
113 };
114 
115 int dc_pci_match(struct device *, void *, void *);
116 void dc_pci_attach(struct device *, struct device *, void *);
117 void dc_pci_acpi(struct device *, void *);
118 
119 /*
120  * Probe for a 21143 or clone chip. Check the PCI vendor and device
121  * IDs against our list and return a device name if we find a match.
122  */
123 int
124 dc_pci_match(parent, match, aux)
125 	struct device *parent;
126 	void *match, *aux;
127 {
128 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
129 	struct dc_type *t;
130 
131 	/*
132 	 * Support for the 21140 chip is experimental.  If it works for you,
133 	 * that's great.  By default, this chip will use de.
134 	 */
135         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
136 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140)
137 		return (1);
138 
139 	/*
140 	 * The following chip revision doesn't seem to work so well with dc,
141 	 * so let's have de handle it.  (de will return a match of 2)
142 	 */
143         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
144 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142 &&
145 	    PCI_REVISION(pa->pa_class) == 0x21)
146 		return (1);
147 
148 	/*
149 	 * Since dc doesn't fit on the alpha floppy, we want de to win by
150 	 * default on alpha so that RAMDISK* and GENERIC will use the same
151 	 * driver.
152 	 */
153 	for (t = dc_devs; t->dc_vid != 0; t++) {
154 		if ((PCI_VENDOR(pa->pa_id) == t->dc_vid) &&
155 		    (PCI_PRODUCT(pa->pa_id) == t->dc_did)) {
156 #ifdef __alpha__
157 			return (1);
158 #else
159 			return (3);
160 #endif
161 		}
162 	}
163 
164 	return (0);
165 }
166 
167 void dc_pci_acpi(self, aux)
168 	struct device *self;
169 	void *aux;
170 {
171 	struct dc_softc		*sc = (struct dc_softc *)self;
172 	struct pci_attach_args	*pa = (struct pci_attach_args *)aux;
173 	pci_chipset_tag_t	pc = pa->pa_pc;
174 	u_int32_t		r, cptr;
175 
176 	/* Find the location of the capabilities block */
177 	cptr = pci_conf_read(pc, pa->pa_tag, DC_PCI_CCAP) & 0xFF;
178 
179 	r = pci_conf_read(pc, pa->pa_tag, cptr) & 0xFF;
180 	if (r == 0x01) {
181 
182 		r = pci_conf_read(pc, pa->pa_tag, cptr + PCI_PMCSR);
183 		if (r & DC_PSTATE_D3) {
184 			u_int32_t		iobase, membase, irq;
185 
186 			/* Save important PCI config data. */
187 			iobase = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFBIO);
188 			membase = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFBMA);
189 			irq = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFIT);
190 
191 			/* Reset the power state. */
192 			printf("%s: chip is in D%d power mode "
193 			    "-- setting to D0\n", sc->sc_dev.dv_xname,
194 			    r & DC_PSTATE_D3);
195 			r &= 0xFFFFFFFC;
196 			pci_conf_write(pc, pa->pa_tag, cptr + PCI_PMCSR, r);
197 
198 			/* Restore PCI config data. */
199 			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFBIO, iobase);
200 			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFBMA, membase);
201 			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFIT, irq);
202 		}
203 	}
204 	return;
205 }
206 
207 /*
208  * Attach the interface. Allocate softc structures, do ifmedia
209  * setup and ethernet/BPF attach.
210  */
211 void dc_pci_attach(parent, self, aux)
212 	struct device *parent, *self;
213 	void *aux;
214 {
215 	const char		*intrstr = NULL;
216 	pcireg_t		command;
217 	struct dc_softc		*sc = (struct dc_softc *)self;
218 	struct pci_attach_args	*pa = aux;
219 	pci_chipset_tag_t	pc = pa->pa_pc;
220 	pci_intr_handle_t	ih;
221 	bus_size_t		size;
222 	u_int32_t		revision;
223 	int			found = 0;
224 
225 	sc->sc_dmat = pa->pa_dmat;
226 
227 	/*
228 	 * Handle power management nonsense.
229 	 */
230 	dc_pci_acpi(self, aux);
231 
232 	sc->dc_csid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
233 
234 	/*
235 	 * Map control/status registers.
236 	 */
237 #ifdef DC_USEIOSPACE
238 	if (pci_mapreg_map(pa, DC_PCI_CFBIO,
239 	    PCI_MAPREG_TYPE_IO, 0,
240 	    &sc->dc_btag, &sc->dc_bhandle, NULL, &size, 0)) {
241 		printf(": can't map i/o space\n");
242 		return;
243 	}
244 #else
245 	if (pci_mapreg_map(pa, DC_PCI_CFBMA,
246 	    PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
247 	    &sc->dc_btag, &sc->dc_bhandle, NULL, &size, 0)) {
248 		printf(": can't map mem space\n");
249 		return;
250 	}
251 #endif
252 
253 	/* Allocate interrupt */
254 	if (pci_intr_map(pa, &ih)) {
255 		printf(": couldn't map interrupt\n");
256 		goto fail_1;
257 	}
258 	intrstr = pci_intr_string(pc, ih);
259 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dc_intr, sc,
260 	    self->dv_xname);
261 	if (sc->sc_ih == NULL) {
262 		printf(": couldn't establish interrupt");
263 		if (intrstr != NULL)
264 			printf(" at %s", intrstr);
265 		printf("\n");
266 		goto fail_1;
267 	}
268 	printf(": %s,", intrstr);
269 
270 	/* Need this info to decide on a chip type. */
271 	sc->dc_revision = revision = PCI_REVISION(pa->pa_class);
272 
273 	/* Get the eeprom width, but PNIC has no eeprom */
274 	if (!(PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LITEON &&
275 	      PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC))
276 		dc_eeprom_width(sc);
277 
278 	switch (PCI_VENDOR(pa->pa_id)) {
279 	case PCI_VENDOR_DEC:
280 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140 ||
281 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142) {
282 			found = 1;
283 			sc->dc_type = DC_TYPE_21143;
284 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
285 			sc->dc_flags |= DC_REDUCED_MII_POLL;
286 			dc_read_srom(sc, sc->dc_romwidth);
287 		}
288 		break;
289 	case PCI_VENDOR_INTEL:
290 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_21145) {
291 			found = 1;
292 			sc->dc_type = DC_TYPE_21145;
293 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
294 			sc->dc_flags |= DC_REDUCED_MII_POLL;
295 			dc_read_srom(sc, sc->dc_romwidth);
296 		}
297 	case PCI_VENDOR_DAVICOM:
298 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9100 ||
299 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9102 ||
300 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9009) {
301 			found = 1;
302 			sc->dc_type = DC_TYPE_DM9102;
303 			sc->dc_flags |= DC_TX_COALESCE|DC_TX_INTR_ALWAYS;
304 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_TX_STORENFWD;
305 			sc->dc_flags |= DC_TX_ALIGN;
306 			sc->dc_pmode = DC_PMODE_MII;
307 
308 			/* Increase the latency timer value. */
309 			command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFLT);
310 			command &= 0xFFFF00FF;
311 			command |= 0x00008000;
312 			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFLT, command);
313 		}
314 		break;
315 	case PCI_VENDOR_ADMTEK:
316 	case PCI_VENDOR_3COM:
317 	case PCI_VENDOR_MICROSOFT:
318 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AL981) {
319 			found = 1;
320 			sc->dc_type = DC_TYPE_AL981;
321 			sc->dc_flags |= DC_TX_USE_TX_INTR;
322 			sc->dc_flags |= DC_TX_ADMTEK_WAR;
323 			sc->dc_pmode = DC_PMODE_MII;
324 			dc_read_srom(sc, sc->dc_romwidth);
325 		}
326 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9511 ||
327 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9513 ||
328 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AN983 ||
329 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3COM_3CSHO100BTX ||
330 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MICROSOFT_MN130) {
331 			found = 1;
332 			sc->dc_type = DC_TYPE_AN983;
333 			sc->dc_flags |= DC_TX_USE_TX_INTR;
334 			sc->dc_flags |= DC_TX_ADMTEK_WAR;
335 			sc->dc_flags |= DC_64BIT_HASH;
336 			sc->dc_pmode = DC_PMODE_MII;
337 			/* Don't read SROM for - auto-loaded on reset */
338 		}
339 		break;
340 	case PCI_VENDOR_MACRONIX:
341 	case PCI_VENDOR_ACCTON:
342 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN2242) {
343 			found = 1;
344 			sc->dc_type = DC_TYPE_AN983;
345 			sc->dc_flags |= DC_TX_USE_TX_INTR;
346 			sc->dc_flags |= DC_TX_ADMTEK_WAR;
347 			sc->dc_flags |= DC_64BIT_HASH;
348 			sc->dc_pmode = DC_PMODE_MII;
349 			/* Don't read SROM for - auto-loaded on reset */
350 		}
351 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98713) {
352 			found = 1;
353 			if (revision < DC_REVISION_98713A) {
354 				sc->dc_type = DC_TYPE_98713;
355 			}
356 			if (revision >= DC_REVISION_98713A) {
357 				sc->dc_type = DC_TYPE_98713A;
358 				sc->dc_flags |= DC_21143_NWAY;
359 			}
360 			sc->dc_flags |= DC_REDUCED_MII_POLL;
361 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
362 		}
363 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98715 ||
364 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN1217) {
365 			found = 1;
366 			if (revision >= DC_REVISION_98715AEC_C &&
367 			    revision < DC_REVISION_98725)
368 				sc->dc_flags |= DC_128BIT_HASH;
369 			sc->dc_type = DC_TYPE_987x5;
370 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
371 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
372 		}
373 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98727) {
374 			found = 1;
375 			sc->dc_type = DC_TYPE_987x5;
376 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
377 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
378 		}
379 		break;
380 	case PCI_VENDOR_COMPEX:
381 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPEX_98713) {
382 			found = 1;
383 			if (revision < DC_REVISION_98713A) {
384 				sc->dc_type = DC_TYPE_98713;
385 				sc->dc_flags |= DC_REDUCED_MII_POLL;
386 			}
387 			if (revision >= DC_REVISION_98713A)
388 				sc->dc_type = DC_TYPE_98713A;
389 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
390 		}
391 		break;
392 	case PCI_VENDOR_LITEON:
393 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNICII) {
394 			found = 1;
395 			sc->dc_type = DC_TYPE_PNICII;
396 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
397 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
398 			sc->dc_flags |= DC_128BIT_HASH;
399 		}
400 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC) {
401 			found = 1;
402 			sc->dc_type = DC_TYPE_PNIC;
403 			sc->dc_flags |= DC_TX_STORENFWD|DC_TX_INTR_ALWAYS;
404 			sc->dc_flags |= DC_PNIC_RX_BUG_WAR;
405 			sc->dc_pnic_rx_buf = malloc(ETHER_MAX_DIX_LEN * 5, M_DEVBUF,
406 			    M_NOWAIT);
407 			if (sc->dc_pnic_rx_buf == NULL)
408 				panic("dc_pci_attach");
409 			if (revision < DC_REVISION_82C169)
410 				sc->dc_pmode = DC_PMODE_SYM;
411 		}
412 		break;
413 	case PCI_VENDOR_ASIX:
414 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ASIX_AX88140A) {
415 			found = 1;
416 			sc->dc_type = DC_TYPE_ASIX;
417 			sc->dc_flags |= DC_TX_USE_TX_INTR|DC_TX_INTR_FIRSTFRAG;
418 			sc->dc_flags |= DC_REDUCED_MII_POLL;
419 			sc->dc_pmode = DC_PMODE_MII;
420 		}
421 		break;
422 	case PCI_VENDOR_CONEXANT:
423 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CONEXANT_RS7112) {
424 			found = 1;
425 			sc->dc_type = DC_TYPE_CONEXANT;
426 			sc->dc_flags |= DC_TX_INTR_ALWAYS;
427 			sc->dc_flags |= DC_REDUCED_MII_POLL;
428 			sc->dc_pmode = DC_PMODE_MII;
429 			dc_read_srom(sc, sc->dc_romwidth);
430 		}
431 		break;
432 	}
433 	if (found == 0) {
434 		/* This shouldn't happen if probe has done it's job... */
435 		printf(": unknown device: %x:%x\n",
436 		    PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id));
437 		goto fail_2;
438 	}
439 
440 	/* Save the cache line size. */
441 	if (DC_IS_DAVICOM(sc))
442 		sc->dc_cachesize = 0;
443 	else
444 		sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag,
445 		    DC_PCI_CFLT) & 0xFF;
446 
447 	/* Reset the adapter. */
448 	dc_reset(sc);
449 
450 	/* Take 21143 out of snooze mode */
451 	if (DC_IS_INTEL(sc)) {
452 		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
453 		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
454 		pci_conf_write(pc, pa->pa_tag, DC_PCI_CFDD, command);
455 	}
456 
457 	/*
458 	 * If we discover later (in dc_attach) that we have an
459 	 * MII with no PHY, we need to have the 21143 drive the LEDs.
460 	 * Except there are some systems like the NEC VersaPro NoteBook PC
461 	 * which have no LEDs, and twiddling these bits has adverse effects
462 	 * on them. (I.e. you suddenly can't get a link.)
463 	 *
464 	 * If mii_attach() returns an error, we leave the DC_TULIP_LEDS
465 	 * bit set, else we clear it. Since our dc(4) driver is split into
466 	 * bus-dependent and bus-independent parts, we must do set this bit
467 	 * here while we are able to do PCI configuration reads.
468 	 */
469 	if (DC_IS_INTEL(sc)) {
470 		if (pci_conf_read(pc, pa->pa_tag, DC_PCI_CSID) != 0x80281033)
471 			sc->dc_flags |= DC_TULIP_LEDS;
472 	}
473 
474 	/*
475 	 * Try to learn something about the supported media.
476 	 * We know that ASIX and ADMtek and Davicom devices
477 	 * will *always* be using MII media, so that's a no-brainer.
478 	 * The tricky ones are the Macronix/PNIC II and the
479 	 * Intel 21143.
480 	 */
481 	if (DC_IS_INTEL(sc))
482 		dc_parse_21143_srom(sc);
483 	else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
484 		if (sc->dc_type == DC_TYPE_98713)
485 			sc->dc_pmode = DC_PMODE_MII;
486 		else
487 			sc->dc_pmode = DC_PMODE_SYM;
488 	} else if (!sc->dc_pmode)
489 		sc->dc_pmode = DC_PMODE_MII;
490 
491 #ifdef __sparc64__
492 	{
493 		extern void myetheraddr(u_char *);
494 
495 		if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
496 		    sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
497 			myetheraddr(sc->sc_arpcom.ac_enaddr);
498 		if (sc->sc_arpcom.ac_enaddr[0] == 0x00 &&
499 		    sc->sc_arpcom.ac_enaddr[1] == 0x03 &&
500 		    sc->sc_arpcom.ac_enaddr[2] == 0xcc)
501 			sc->dc_flags |= DC_MOMENCO_BOTCH;
502 		sc->sc_hasmac = 1;
503 	}
504 #endif
505 
506 #ifdef SRM_MEDIA
507 	sc->dc_srm_media = 0;
508 
509 	/* Remember the SRM console media setting */
510 	if (DC_IS_INTEL(sc)) {
511 		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
512 		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
513 		switch ((command >> 8) & 0xff) {
514 		case 3:
515 			sc->dc_srm_media = IFM_10_T;
516 			break;
517 		case 4:
518 			sc->dc_srm_media = IFM_10_T | IFM_FDX;
519 			break;
520 		case 5:
521 			sc->dc_srm_media = IFM_100_TX;
522 			break;
523 		case 6:
524 			sc->dc_srm_media = IFM_100_TX | IFM_FDX;
525 			break;
526 		}
527 		if (sc->dc_srm_media)
528 			sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER;
529 	}
530 #endif
531 	dc_attach(sc);
532 
533 	return;
534 
535 fail_2:
536 	pci_intr_disestablish(pc, sc->sc_ih);
537 
538 fail_1:
539 	bus_space_unmap(sc->dc_btag, sc->dc_bhandle, size);
540 }
541 
542 struct cfattach dc_pci_ca = {
543 	sizeof(struct dc_softc), dc_pci_match, dc_pci_attach
544 };
545