xref: /netbsd-src/sys/dev/cardbus/if_tlp_cardbus.c (revision 8ac07aec990b9d2e483062509d0a9fa5b4f57cf2) 
1 /*	$NetBSD: if_tlp_cardbus.c,v 1.57 2008/04/06 07:54:18 cegger Exp $	*/
2 
3 /*-
4  * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9  * NASA Ames Research Center.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the NetBSD
22  *	Foundation, Inc. and its contributors.
23  * 4. Neither the name of The NetBSD Foundation nor the names of its
24  *    contributors may be used to endorse or promote products derived
25  *    from this software without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGE.
38  */
39 
40 /*
41  * CardBus bus front-end for the Digital Semiconductor ``Tulip'' (21x4x)
42  * Ethernet controller family driver.
43  */
44 
45 #include <sys/cdefs.h>
46 __KERNEL_RCSID(0, "$NetBSD: if_tlp_cardbus.c,v 1.57 2008/04/06 07:54:18 cegger Exp $");
47 
48 #include "opt_inet.h"
49 #include "bpfilter.h"
50 
51 #include <sys/param.h>
52 #include <sys/systm.h>
53 #include <sys/mbuf.h>
54 #include <sys/malloc.h>
55 #include <sys/kernel.h>
56 #include <sys/socket.h>
57 #include <sys/ioctl.h>
58 #include <sys/errno.h>
59 #include <sys/device.h>
60 
61 #include <machine/endian.h>
62 
63 #include <net/if.h>
64 #include <net/if_dl.h>
65 #include <net/if_media.h>
66 #include <net/if_ether.h>
67 
68 #if NBPFILTER > 0
69 #include <net/bpf.h>
70 #endif
71 
72 #ifdef INET
73 #include <netinet/in.h>
74 #include <netinet/if_inarp.h>
75 #endif
76 
77 
78 #include <sys/bus.h>
79 #include <sys/intr.h>
80 
81 #include <dev/mii/miivar.h>
82 #include <dev/mii/mii_bitbang.h>
83 
84 #include <dev/ic/tulipreg.h>
85 #include <dev/ic/tulipvar.h>
86 
87 #include <dev/pci/pcivar.h>
88 #include <dev/pci/pcireg.h>
89 #include <dev/pci/pcidevs.h>
90 
91 #include <dev/cardbus/cardbusvar.h>
92 #include <dev/pci/pcidevs.h>
93 
94 /*
95  * PCI configuration space registers used by the Tulip.
96  */
97 #define	TULIP_PCI_IOBA		0x10	/* i/o mapped base */
98 #define	TULIP_PCI_MMBA		0x14	/* memory mapped base */
99 #define	TULIP_PCI_CFDA		0x40	/* configuration driver area */
100 
101 #define	CFDA_SLEEP		0x80000000	/* sleep mode */
102 #define	CFDA_SNOOZE		0x40000000	/* snooze mode */
103 
104 struct tulip_cardbus_softc {
105 	struct tulip_softc sc_tulip;	/* real Tulip softc */
106 
107 	/* CardBus-specific goo. */
108 	void	*sc_ih;			/* interrupt handle */
109 	cardbus_devfunc_t sc_ct;	/* our CardBus devfuncs */
110 	cardbustag_t sc_tag;		/* our CardBus tag */
111 	int	sc_csr;			/* CSR bits */
112 	bus_size_t sc_mapsize;		/* the size of mapped bus space
113 					   region */
114 
115 	int	sc_cben;		/* CardBus enables */
116 	int	sc_bar_reg;		/* which BAR to use */
117 	pcireg_t sc_bar_val;		/* value of the BAR */
118 
119 	int	sc_intrline;		/* interrupt line */
120 };
121 
122 int	tlp_cardbus_match(struct device *, struct cfdata *, void *);
123 void	tlp_cardbus_attach(struct device *, struct device *, void *);
124 int	tlp_cardbus_detach(struct device *, int);
125 
126 CFATTACH_DECL(tlp_cardbus, sizeof(struct tulip_cardbus_softc),
127     tlp_cardbus_match, tlp_cardbus_attach, tlp_cardbus_detach, tlp_activate);
128 
129 const struct tulip_cardbus_product {
130 	u_int32_t	tcp_vendor;	/* PCI vendor ID */
131 	u_int32_t	tcp_product;	/* PCI product ID */
132 	tulip_chip_t	tcp_chip;	/* base Tulip chip type */
133 } tlp_cardbus_products[] = {
134 	{ PCI_VENDOR_DEC,	PCI_PRODUCT_DEC_21142,
135 	  TULIP_CHIP_21142 },
136 
137 	{ PCI_VENDOR_XIRCOM,	PCI_PRODUCT_XIRCOM_X3201_3_21143,
138 	  TULIP_CHIP_X3201_3 },
139 
140 	{ PCI_VENDOR_ADMTEK,	PCI_PRODUCT_ADMTEK_AN983,
141 	  TULIP_CHIP_AN985 },
142 
143 	{ PCI_VENDOR_ACCTON,	PCI_PRODUCT_ACCTON_EN2242,
144 	  TULIP_CHIP_AN985 },
145 
146 	{ PCI_VENDOR_ABOCOM,	PCI_PRODUCT_ABOCOM_FE2500,
147 	  TULIP_CHIP_AN985 },
148 
149 	{ PCI_VENDOR_ABOCOM,	PCI_PRODUCT_ABOCOM_PCM200,
150 	  TULIP_CHIP_AN985 },
151 
152 	{ PCI_VENDOR_ABOCOM,	PCI_PRODUCT_ABOCOM_FE2500MX,
153 	  TULIP_CHIP_AN985 },
154 
155 	{ PCI_VENDOR_HAWKING,	PCI_PRODUCT_HAWKING_PN672TX,
156 	  TULIP_CHIP_AN985 },
157 
158 	{ PCI_VENDOR_ADMTEK,	PCI_PRODUCT_ADMTEK_AN985,
159 	  TULIP_CHIP_AN985 },
160 
161 	{ PCI_VENDOR_MICROSOFT,	PCI_PRODUCT_MICROSOFT_MN120,
162 	  TULIP_CHIP_AN985 },
163 
164 	{ PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCMPC200,
165 	  TULIP_CHIP_AN985 },
166 
167 	{ 0,				0,
168 	  TULIP_CHIP_INVALID },
169 };
170 
171 struct tlp_cardbus_quirks {
172 	void		(*tpq_func)(struct tulip_cardbus_softc *,
173 			    const u_int8_t *);
174 	u_int8_t	tpq_oui[3];
175 };
176 
177 void	tlp_cardbus_lxt_quirks(struct tulip_cardbus_softc *,
178 	    const u_int8_t *);
179 
180 const struct tlp_cardbus_quirks tlp_cardbus_21142_quirks[] = {
181 	{ tlp_cardbus_lxt_quirks,	{ 0x00, 0x40, 0x05 } },
182 	{ NULL,				{ 0, 0, 0 } }
183 };
184 
185 void	tlp_cardbus_setup(struct tulip_cardbus_softc *);
186 
187 int	tlp_cardbus_enable(struct tulip_softc *);
188 void	tlp_cardbus_disable(struct tulip_softc *);
189 void	tlp_cardbus_power(struct tulip_softc *, int);
190 
191 void	tlp_cardbus_x3201_reset(struct tulip_softc *);
192 
193 const struct tulip_cardbus_product *tlp_cardbus_lookup
194    (const struct cardbus_attach_args *);
195 void tlp_cardbus_get_quirks(struct tulip_cardbus_softc *,
196     const u_int8_t *, const struct tlp_cardbus_quirks *);
197 
198 const struct tulip_cardbus_product *
199 tlp_cardbus_lookup(ca)
200 	const struct cardbus_attach_args *ca;
201 {
202 	const struct tulip_cardbus_product *tcp;
203 
204 	for (tcp = tlp_cardbus_products;
205 	     tlp_chip_names[tcp->tcp_chip] != NULL;
206 	     tcp++) {
207 		if (PCI_VENDOR(ca->ca_id) == tcp->tcp_vendor &&
208 		    PCI_PRODUCT(ca->ca_id) == tcp->tcp_product)
209 			return (tcp);
210 	}
211 	return (NULL);
212 }
213 
214 void
215 tlp_cardbus_get_quirks(csc, enaddr, tpq)
216 	struct tulip_cardbus_softc *csc;
217 	const u_int8_t *enaddr;
218 	const struct tlp_cardbus_quirks *tpq;
219 {
220 
221 	for (; tpq->tpq_func != NULL; tpq++) {
222 		if (tpq->tpq_oui[0] == enaddr[0] &&
223 		    tpq->tpq_oui[1] == enaddr[1] &&
224 		    tpq->tpq_oui[2] == enaddr[2]) {
225 			(*tpq->tpq_func)(csc, enaddr);
226 			return;
227 		}
228 	}
229 }
230 
231 int
232 tlp_cardbus_match(struct device *parent, struct cfdata *match,
233     void *aux)
234 {
235 	struct cardbus_attach_args *ca = aux;
236 
237 	if (tlp_cardbus_lookup(ca) != NULL)
238 		return (1);
239 
240 	return (0);
241 }
242 
243 void
244 tlp_cardbus_attach(struct device *parent, struct device *self,
245     void *aux)
246 {
247 	struct tulip_cardbus_softc *csc = device_private(self);
248 	struct tulip_softc *sc = &csc->sc_tulip;
249 	struct cardbus_attach_args *ca = aux;
250 	cardbus_devfunc_t ct = ca->ca_ct;
251 	const struct tulip_cardbus_product *tcp;
252 	u_int8_t enaddr[ETHER_ADDR_LEN];
253 	bus_addr_t adr;
254 	pcireg_t reg;
255 
256 	sc->sc_devno = 0;
257 	sc->sc_dmat = ca->ca_dmat;
258 	csc->sc_ct = ct;
259 	csc->sc_tag = ca->ca_tag;
260 
261 	tcp = tlp_cardbus_lookup(ca);
262 	if (tcp == NULL) {
263 		printf("\n");
264 		panic("tlp_cardbus_attach: impossible");
265 	}
266 	sc->sc_chip = tcp->tcp_chip;
267 
268 	/*
269 	 * By default, Tulip registers are 8 bytes long (4 bytes
270 	 * followed by a 4 byte pad).
271 	 */
272 	sc->sc_regshift = 3;
273 
274 	/*
275 	 * Power management hooks.
276 	 */
277 	sc->sc_enable = tlp_cardbus_enable;
278 	sc->sc_disable = tlp_cardbus_disable;
279 	sc->sc_power = tlp_cardbus_power;
280 
281 	/*
282 	 * Get revision info, and set some chip-specific variables.
283 	 */
284 	sc->sc_rev = PCI_REVISION(ca->ca_class);
285 	switch (sc->sc_chip) {
286 	case TULIP_CHIP_21142:
287 		if (sc->sc_rev >= 0x20)
288 			sc->sc_chip = TULIP_CHIP_21143;
289 		break;
290 
291 	case TULIP_CHIP_AN985:
292 		/*
293 		 * The AN983 and AN985 are very similar, and are
294 		 * differentiated by a "signature" register that
295 		 * is like, but not identical, to a PCI ID register.
296 		 */
297 		reg = cardbus_conf_read(ct->ct_cc, ct->ct_cf, csc->sc_tag,
298 		    0x80);
299 		switch (reg) {
300 		case 0x09811317:
301 			sc->sc_chip = TULIP_CHIP_AN985;
302 			break;
303 
304 		case 0x09851317:
305 			sc->sc_chip = TULIP_CHIP_AN983;
306 			break;
307 
308 		}
309 		break;
310 
311 	default:
312 		/* Nothing. -- to make gcc happy */
313 		break;
314 	}
315 
316 	printf(": %s Ethernet, pass %d.%d\n",
317 	    tlp_chip_names[sc->sc_chip],
318 	    (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf);
319 
320 	/*
321 	 * Map the device.
322 	 */
323 	csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE;
324 	if (Cardbus_mapreg_map(ct, TULIP_PCI_MMBA,
325 	    CARDBUS_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &adr,
326 	    &csc->sc_mapsize) == 0) {
327 #if rbus
328 #else
329 		(*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize);
330 #endif
331 		csc->sc_cben = CARDBUS_MEM_ENABLE;
332 		csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE;
333 		csc->sc_bar_reg = TULIP_PCI_MMBA;
334 		csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM;
335 	} else if (Cardbus_mapreg_map(ct, TULIP_PCI_IOBA,
336 	    CARDBUS_MAPREG_TYPE_IO, 0, &sc->sc_st, &sc->sc_sh, &adr,
337 	    &csc->sc_mapsize) == 0) {
338 #if rbus
339 #else
340 		(*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize);
341 #endif
342 		csc->sc_cben = CARDBUS_IO_ENABLE;
343 		csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE;
344 		csc->sc_bar_reg = TULIP_PCI_IOBA;
345 		csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO;
346 	} else {
347 		aprint_error_dev(&sc->sc_dev, "unable to map device registers\n");
348 		return;
349 	}
350 
351 	/*
352 	 * Bring the chip out of powersave mode and initialize the
353 	 * configuration registers.
354 	 */
355 	tlp_cardbus_setup(csc);
356 
357 	/*
358 	 * Read the contents of the Ethernet Address ROM/SROM.
359 	 */
360 	switch (sc->sc_chip) {
361 	case TULIP_CHIP_X3201_3:
362 		/*
363 		 * No SROM on this chip.
364 		 */
365 		break;
366 
367 	default:
368 		if (tlp_read_srom(sc) == 0)
369 			goto cant_cope;
370 		break;
371 	}
372 
373 	/*
374 	 * Deal with chip/board quirks.  This includes setting up
375 	 * the mediasw, and extracting the Ethernet address from
376 	 * the rombuf.
377 	 */
378 	switch (sc->sc_chip) {
379 	case TULIP_CHIP_21142:
380 	case TULIP_CHIP_21143:
381 		/* Check for new format SROM. */
382 		if (tlp_isv_srom_enaddr(sc, enaddr) != 0) {
383 			/*
384 			 * We start out with the 2114x ISV media switch.
385 			 * When we search for quirks, we may change to
386 			 * a different switch.
387 			 */
388 			sc->sc_mediasw = &tlp_2114x_isv_mediasw;
389 		} else if (tlp_parse_old_srom(sc, enaddr) == 0) {
390 			/*
391 			 * Not an ISV SROM, and not in old DEC Address
392 			 * ROM format.  Try to snarf it out of the CIS.
393 			 */
394 			if (ca->ca_cis.funce.network.netid_present == 0)
395 				goto cant_cope;
396 
397 			/* Grab the MAC address from the CIS. */
398 			memcpy(enaddr, ca->ca_cis.funce.network.netid,
399 			    sizeof(enaddr));
400 		}
401 
402 		/*
403 		 * Deal with any quirks this board might have.
404 		 */
405 		tlp_cardbus_get_quirks(csc, enaddr, tlp_cardbus_21142_quirks);
406 
407 		/*
408 		 * If we don't already have a media switch, default to
409 		 * MII-over-SIO, with no special reset routine.
410 		 */
411 		if (sc->sc_mediasw == NULL) {
412 			printf("%s: defaulting to MII-over-SIO; no bets...\n",
413 			    device_xname(&sc->sc_dev));
414 			sc->sc_mediasw = &tlp_sio_mii_mediasw;
415 		}
416 		break;
417 
418 	case TULIP_CHIP_AN983:
419 	case TULIP_CHIP_AN985:
420 		/*
421 		 * The ADMtek AN985's Ethernet address is located
422 		 * at offset 8 of its EEPROM.
423 		 */
424 		memcpy(enaddr, &sc->sc_srom[8], ETHER_ADDR_LEN);
425 
426 		/*
427 		 * The ADMtek AN985 can be configured in Single-Chip
428 		 * mode or MAC-only mode.  Single-Chip uses the built-in
429 		 * PHY, MAC-only has an external PHY (usually HomePNA).
430 		 * The selection is based on an EEPROM setting, and both
431 		 * PHYs are access via MII attached to SIO.
432 		 *
433 		 * The AN985 "ghosts" the internal PHY onto all
434 		 * MII addresses, so we have to use a media init
435 		 * routine that limits the search.
436 		 * XXX How does this work with MAC-only mode?
437 		 */
438 		sc->sc_mediasw = &tlp_an985_mediasw;
439 		break;
440 
441 	case TULIP_CHIP_X3201_3:
442 		/*
443 		 * The X3201 doesn't have an SROM.  Lift the MAC address
444 		 * from the CIS.  Also, we have a special media switch:
445 		 * MII-on-SIO, plus some special GPIO setup.
446 		 */
447 		memcpy(enaddr, ca->ca_cis.funce.network.netid, sizeof(enaddr));
448 		sc->sc_reset = tlp_cardbus_x3201_reset;
449 		sc->sc_mediasw = &tlp_sio_mii_mediasw;
450 		break;
451 
452 	default:
453  cant_cope:
454 		printf("%s: sorry, unable to handle your board\n",
455 		    device_xname(&sc->sc_dev));
456 		return;
457 	}
458 
459 	/* Remember which interrupt line. */
460 	csc->sc_intrline = ca->ca_intrline;
461 
462 	/*
463 	 * Finish off the attach.
464 	 */
465 	tlp_attach(sc, enaddr);
466 
467 	/*
468 	 * Power down the socket.
469 	 */
470 	Cardbus_function_disable(csc->sc_ct);
471 }
472 
473 int
474 tlp_cardbus_detach(struct device *self, int flags)
475 {
476 	struct tulip_cardbus_softc *csc = device_private(self);
477 	struct tulip_softc *sc = &csc->sc_tulip;
478 	struct cardbus_devfunc *ct = csc->sc_ct;
479 	int rv;
480 
481 #if defined(DIAGNOSTIC)
482 	if (ct == NULL)
483 		panic("%s: data structure lacks", device_xname(&sc->sc_dev));
484 #endif
485 
486 	rv = tlp_detach(sc);
487 	if (rv)
488 		return (rv);
489 
490 	/*
491 	 * Unhook the interrupt handler.
492 	 */
493 	if (csc->sc_ih != NULL)
494 		cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih);
495 
496 	/*
497 	 * Release bus space and close window.
498 	 */
499 	if (csc->sc_bar_reg != 0)
500 		Cardbus_mapreg_unmap(ct, csc->sc_bar_reg,
501 		    sc->sc_st, sc->sc_sh, csc->sc_mapsize);
502 
503 	return (0);
504 }
505 
506 int
507 tlp_cardbus_enable(sc)
508 	struct tulip_softc *sc;
509 {
510 	struct tulip_cardbus_softc *csc = (void *) sc;
511 	cardbus_devfunc_t ct = csc->sc_ct;
512 	cardbus_chipset_tag_t cc = ct->ct_cc;
513 	cardbus_function_tag_t cf = ct->ct_cf;
514 
515 	/*
516 	 * Power on the socket.
517 	 */
518 	Cardbus_function_enable(ct);
519 
520 	/*
521 	 * Set up the PCI configuration registers.
522 	 */
523 	tlp_cardbus_setup(csc);
524 
525 	/*
526 	 * Map and establish the interrupt.
527 	 */
528 	csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET,
529 	    tlp_intr, sc);
530 	if (csc->sc_ih == NULL) {
531 		aprint_error_dev(&sc->sc_dev, "unable to establish interrupt at %d\n",
532 		    csc->sc_intrline);
533 		Cardbus_function_disable(csc->sc_ct);
534 		return (1);
535 	}
536 	printf("%s: interrupting at %d\n", device_xname(&sc->sc_dev),
537 	    csc->sc_intrline);
538 
539 	return (0);
540 }
541 
542 void
543 tlp_cardbus_disable(sc)
544 	struct tulip_softc *sc;
545 {
546 	struct tulip_cardbus_softc *csc = (void *) sc;
547 	cardbus_devfunc_t ct = csc->sc_ct;
548 	cardbus_chipset_tag_t cc = ct->ct_cc;
549 	cardbus_function_tag_t cf = ct->ct_cf;
550 
551 	/* Unhook the interrupt handler. */
552 	cardbus_intr_disestablish(cc, cf, csc->sc_ih);
553 	csc->sc_ih = NULL;
554 
555 	/* Power down the socket. */
556 	Cardbus_function_disable(ct);
557 }
558 
559 void
560 tlp_cardbus_power(sc, why)
561 	struct tulip_softc *sc;
562 	int why;
563 {
564 
565 	switch (why) {
566 	case PWR_RESUME:
567 		tlp_cardbus_enable(sc);
568 		break;
569 	case PWR_SUSPEND:
570 		tlp_cardbus_disable(sc);
571 		break;
572 	}
573 }
574 
575 void
576 tlp_cardbus_setup(csc)
577 	struct tulip_cardbus_softc *csc;
578 {
579 	struct tulip_softc *sc = &csc->sc_tulip;
580 	cardbus_devfunc_t ct = csc->sc_ct;
581 	cardbus_chipset_tag_t cc = ct->ct_cc;
582 	cardbus_function_tag_t cf = ct->ct_cf;
583 	pcireg_t reg;
584 
585 	/*
586 	 * Check to see if the device is in power-save mode, and
587 	 * bring it out if necessary.
588 	 */
589 	switch (sc->sc_chip) {
590 	case TULIP_CHIP_21142:
591 	case TULIP_CHIP_21143:
592 	case TULIP_CHIP_X3201_3:
593 		/*
594 		 * Clear the "sleep mode" bit in the CFDA register.
595 		 */
596 		reg = cardbus_conf_read(cc, cf, csc->sc_tag, TULIP_PCI_CFDA);
597 		if (reg & (CFDA_SLEEP|CFDA_SNOOZE))
598 			cardbus_conf_write(cc, cf, csc->sc_tag, TULIP_PCI_CFDA,
599 			    reg & ~(CFDA_SLEEP|CFDA_SNOOZE));
600 		break;
601 
602 	default:
603 		/* Nothing. -- to make gcc happy */
604 		break;
605 	}
606 
607 	(void)cardbus_set_powerstate(ct, csc->sc_tag, PCI_PWR_D0);
608 
609 	/* Program the BAR. */
610 	cardbus_conf_write(cc, cf, csc->sc_tag, csc->sc_bar_reg,
611 	    csc->sc_bar_val);
612 
613 	/* Make sure the right access type is on the CardBus bridge. */
614 	(*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben);
615 	(*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
616 
617 	/* Enable the appropriate bits in the PCI CSR. */
618 	reg = cardbus_conf_read(cc, cf, csc->sc_tag, PCI_COMMAND_STATUS_REG);
619 	reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
620 	reg |= csc->sc_csr;
621 	cardbus_conf_write(cc, cf, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg);
622 
623 	/*
624 	 * Make sure the latency timer is set to some reasonable
625 	 * value.
626 	 */
627 	reg = cardbus_conf_read(cc, cf, csc->sc_tag, PCI_BHLC_REG);
628 	if (PCI_LATTIMER(reg) < 0x20) {
629 		reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
630 		reg |= (0x20 << PCI_LATTIMER_SHIFT);
631 		cardbus_conf_write(cc, cf, csc->sc_tag, PCI_BHLC_REG, reg);
632 	}
633 }
634 
635 void
636 tlp_cardbus_x3201_reset(sc)
637 	struct tulip_softc *sc;
638 {
639 	u_int32_t reg;
640 
641 	reg = TULIP_READ(sc, CSR_SIAGEN);
642 
643 	/* make GP[2,0] outputs */
644 	TULIP_WRITE(sc, CSR_SIAGEN, (reg & ~SIAGEN_MD) | SIAGEN_CWE |
645 	    0x00050000);
646 	TULIP_WRITE(sc, CSR_SIAGEN, (reg & ~SIAGEN_CWE) | SIAGEN_MD);
647 }
648 
649 void
650 tlp_cardbus_lxt_quirks(struct tulip_cardbus_softc *csc,
651     const u_int8_t *enaddr)
652 {
653 	struct tulip_softc *sc = &csc->sc_tulip;
654 
655 	sc->sc_mediasw = &tlp_sio_mii_mediasw;
656 }
657