xref: /freebsd/sys/dev/mii/brgphy.c (revision 84ee9401a3fc8d3c22424266f421a928989cd692)
1 /*-
2  * Copyright (c) 2000
3  *	Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by Bill Paul.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30  * THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 
36 /*
37  * Driver for the Broadcom BCR5400 1000baseTX PHY. Speed is always
38  * 1000mbps; all we need to negotiate here is full or half duplex.
39  */
40 
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/kernel.h>
44 #include <sys/module.h>
45 #include <sys/socket.h>
46 #include <sys/bus.h>
47 
48 
49 #include <net/if.h>
50 #include <net/ethernet.h>
51 #include <net/if_media.h>
52 
53 #include <dev/mii/mii.h>
54 #include <dev/mii/miivar.h>
55 #include "miidevs.h"
56 
57 #include <dev/mii/brgphyreg.h>
58 #include <net/if_arp.h>
59 #include <machine/bus.h>
60 #include <dev/bge/if_bgereg.h>
61 #include <dev/bce/if_bcereg.h>
62 
63 #include <dev/pci/pcireg.h>
64 #include <dev/pci/pcivar.h>
65 
66 #include "miibus_if.h"
67 
68 static int brgphy_probe(device_t);
69 static int brgphy_attach(device_t);
70 
71 static device_method_t brgphy_methods[] = {
72 	/* device interface */
73 	DEVMETHOD(device_probe,		brgphy_probe),
74 	DEVMETHOD(device_attach,	brgphy_attach),
75 	DEVMETHOD(device_detach,	mii_phy_detach),
76 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
77 	{ 0, 0 }
78 };
79 
80 static devclass_t brgphy_devclass;
81 
82 static driver_t brgphy_driver = {
83 	"brgphy",
84 	brgphy_methods,
85 	sizeof(struct mii_softc)
86 };
87 
88 DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
89 
90 static int	brgphy_service(struct mii_softc *, struct mii_data *, int);
91 static void	brgphy_status(struct mii_softc *);
92 static int	brgphy_mii_phy_auto(struct mii_softc *);
93 static void	brgphy_reset(struct mii_softc *);
94 static void	brgphy_loop(struct mii_softc *);
95 static void	bcm5401_load_dspcode(struct mii_softc *);
96 static void	bcm5411_load_dspcode(struct mii_softc *);
97 static void	bcm5703_load_dspcode(struct mii_softc *);
98 static void	bcm5750_load_dspcode(struct mii_softc *);
99 static int	brgphy_mii_model;
100 
101 static const struct mii_phydesc brgphys[] = {
102 	MII_PHY_DESC(xxBROADCOM, BCM5400),
103 	MII_PHY_DESC(xxBROADCOM, BCM5401),
104 	MII_PHY_DESC(xxBROADCOM, BCM5411),
105 	MII_PHY_DESC(xxBROADCOM, BCM5752),
106 	MII_PHY_DESC(xxBROADCOM, BCM5701),
107 	MII_PHY_DESC(xxBROADCOM, BCM5703),
108 	MII_PHY_DESC(xxBROADCOM, BCM5704),
109 	MII_PHY_DESC(xxBROADCOM, BCM5705),
110 	MII_PHY_DESC(xxBROADCOM, BCM5750),
111 	MII_PHY_DESC(xxBROADCOM, BCM5714),
112 	MII_PHY_DESC(xxBROADCOM, BCM5780),
113 	MII_PHY_DESC(xxBROADCOM, BCM5706C),
114 	MII_PHY_DESC(xxBROADCOM, BCM5708C),
115 	MII_PHY_END
116 };
117 
118 static int
119 brgphy_probe(device_t dev)
120 {
121 	struct mii_attach_args *ma;
122 	const struct mii_phydesc *mpd;
123 
124 	ma = device_get_ivars(dev);
125 	mpd = mii_phy_match(ma, brgphys);
126 	if (mpd != NULL) {
127 		device_set_desc(dev, mpd->mpd_name);
128 		return (BUS_PROBE_DEFAULT);
129 	}
130 
131 	return (ENXIO);
132 }
133 
134 static int
135 brgphy_attach(device_t dev)
136 {
137 	struct mii_softc *sc;
138 	struct mii_attach_args *ma;
139 	struct mii_data *mii;
140 	const char *sep = "";
141 	struct bge_softc *bge_sc = NULL;
142 	struct bce_softc *bce_sc = NULL;
143 	int fast_ether_only = FALSE;
144 
145 	sc = device_get_softc(dev);
146 	ma = device_get_ivars(dev);
147 	sc->mii_dev = device_get_parent(dev);
148 	mii = device_get_softc(sc->mii_dev);
149 	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
150 
151 	sc->mii_inst = mii->mii_instance;
152 	sc->mii_phy = ma->mii_phyno;
153 	sc->mii_service = brgphy_service;
154 	sc->mii_pdata = mii;
155 
156 	sc->mii_flags |= MIIF_NOISOLATE;
157 	mii->mii_instance++;
158 
159 #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
160 #define PRINT(s)	printf("%s%s", sep, s); sep = ", "
161 
162 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
163 	    BMCR_ISO);
164 #if 0
165 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
166 	    BMCR_LOOP|BMCR_S100);
167 #endif
168 
169 	brgphy_mii_model = MII_MODEL(ma->mii_id2);
170 	brgphy_reset(sc);
171 
172 
173 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
174 	sc->mii_capabilities &= ~BMSR_ANEG;
175 	device_printf(dev, " ");
176 	mii_add_media(sc);
177 
178 	/* Find the driver associated with this PHY. */
179 	if (strcmp(mii->mii_ifp->if_dname, "bge") == 0)	{
180  		bge_sc = mii->mii_ifp->if_softc;
181 	} else if (strcmp(mii->mii_ifp->if_dname, "bce") == 0) {
182 		bce_sc = mii->mii_ifp->if_softc;
183 	}
184 
185 	/* The 590x chips are 10/100 only. */
186 	if (strcmp(mii->mii_ifp->if_dname, "bge") == 0 &&
187 	    pci_get_vendor(bge_sc->bge_dev) == BCOM_VENDORID &&
188 	    (pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901 ||
189 	    pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901A2))
190 		fast_ether_only = TRUE;
191 
192 	if (fast_ether_only == FALSE) {
193 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0,
194 		    sc->mii_inst), BRGPHY_BMCR_FDX);
195 		PRINT(", 1000baseTX");
196 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
197 		    IFM_FDX, sc->mii_inst), 0);
198 		PRINT("1000baseTX-FDX");
199 	}
200 
201 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
202 	PRINT("auto");
203 
204 	printf("\n");
205 #undef ADD
206 #undef PRINT
207 
208 	MIIBUS_MEDIAINIT(sc->mii_dev);
209 	return(0);
210 }
211 
212 static int
213 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
214 {
215 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
216 	int reg, speed, gig;
217 
218 	switch (cmd) {
219 	case MII_POLLSTAT:
220 		/*
221 		 * If we're not polling our PHY instance, just return.
222 		 */
223 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
224 			return (0);
225 		break;
226 
227 	case MII_MEDIACHG:
228 		/*
229 		 * If the media indicates a different PHY instance,
230 		 * isolate ourselves.
231 		 */
232 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
233 			reg = PHY_READ(sc, MII_BMCR);
234 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
235 			return (0);
236 		}
237 
238 		/*
239 		 * If the interface is not up, don't do anything.
240 		 */
241 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
242 			break;
243 
244 		brgphy_reset(sc);	/* XXX hardware bug work-around */
245 
246 		switch (IFM_SUBTYPE(ife->ifm_media)) {
247 		case IFM_AUTO:
248 #ifdef foo
249 			/*
250 			 * If we're already in auto mode, just return.
251 			 */
252 			if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
253 				return (0);
254 #endif
255 			(void) brgphy_mii_phy_auto(sc);
256 			break;
257 		case IFM_1000_T:
258 			speed = BRGPHY_S1000;
259 			goto setit;
260 		case IFM_100_TX:
261 			speed = BRGPHY_S100;
262 			goto setit;
263 		case IFM_10_T:
264 			speed = BRGPHY_S10;
265 setit:
266 			brgphy_loop(sc);
267 			if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
268 				speed |= BRGPHY_BMCR_FDX;
269 				gig = BRGPHY_1000CTL_AFD;
270 			} else {
271 				gig = BRGPHY_1000CTL_AHD;
272 			}
273 
274 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
275 			PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);
276 			PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
277 
278 			if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
279 				break;
280 
281 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
282 			PHY_WRITE(sc, BRGPHY_MII_BMCR,
283 			    speed|BRGPHY_BMCR_AUTOEN|BRGPHY_BMCR_STARTNEG);
284 
285 			if (brgphy_mii_model != MII_MODEL_xxBROADCOM_BCM5701)
286 				break;
287 
288 			/*
289 			 * When settning the link manually, one side must
290 			 * be the master and the other the slave. However
291 			 * ifmedia doesn't give us a good way to specify
292 			 * this, so we fake it by using one of the LINK
293 			 * flags. If LINK0 is set, we program the PHY to
294 			 * be a master, otherwise it's a slave.
295 			 */
296 			if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
297 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
298 				    gig|BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
299 			} else {
300 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
301 				    gig|BRGPHY_1000CTL_MSE);
302 			}
303 			break;
304 #ifdef foo
305 		case IFM_NONE:
306 			PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
307 			break;
308 #endif
309 		case IFM_100_T4:
310 		default:
311 			return (EINVAL);
312 		}
313 		break;
314 
315 	case MII_TICK:
316 		/*
317 		 * If we're not currently selected, just return.
318 		 */
319 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
320 			return (0);
321 
322 		/*
323 		 * Is the interface even up?
324 		 */
325 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
326 			return (0);
327 
328 		/*
329 		 * Only used for autonegotiation.
330 		 */
331 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
332 			break;
333 
334 		/*
335 		 * Check to see if we have link.  If we do, we don't
336 		 * need to restart the autonegotiation process.  Read
337 		 * the BMSR twice in case it's latched.
338 		 */
339 		reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
340 		if (reg & BRGPHY_AUXSTS_LINK)
341 			break;
342 
343 		/*
344 		 * Only retry autonegotiation every 5 seconds.
345 		 */
346 		if (++sc->mii_ticks <= 5)
347 			break;
348 
349 		sc->mii_ticks = 0;
350 		brgphy_mii_phy_auto(sc);
351 		break;
352 	}
353 
354 	/* Update the media status. */
355 	brgphy_status(sc);
356 
357 	/*
358 	 * Callback if something changed. Note that we need to poke
359 	 * the DSP on the Broadcom PHYs if the media changes.
360 	 *
361 	 */
362 	if (sc->mii_media_active != mii->mii_media_active ||
363 	    sc->mii_media_status != mii->mii_media_status ||
364 	    cmd == MII_MEDIACHG) {
365 		switch (brgphy_mii_model) {
366 		case MII_MODEL_xxBROADCOM_BCM5400:
367 		case MII_MODEL_xxBROADCOM_BCM5401:
368 			bcm5401_load_dspcode(sc);
369 			break;
370 		case MII_MODEL_xxBROADCOM_BCM5411:
371 			bcm5411_load_dspcode(sc);
372 			break;
373 		}
374 	}
375 	mii_phy_update(sc, cmd);
376 	return (0);
377 }
378 
379 static void
380 brgphy_status(struct mii_softc *sc)
381 {
382 	struct mii_data *mii = sc->mii_pdata;
383 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
384 	int bmsr, bmcr;
385 
386 	mii->mii_media_status = IFM_AVALID;
387 	mii->mii_media_active = IFM_ETHER;
388 
389 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
390 	if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK)
391 		mii->mii_media_status |= IFM_ACTIVE;
392 
393 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
394 
395 	if (bmcr & BRGPHY_BMCR_LOOP)
396 		mii->mii_media_active |= IFM_LOOP;
397 
398 	if (bmcr & BRGPHY_BMCR_AUTOEN) {
399 		if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) {
400 			/* Erg, still trying, I guess... */
401 			mii->mii_media_active |= IFM_NONE;
402 			return;
403 		}
404 
405 		switch (PHY_READ(sc, BRGPHY_MII_AUXSTS) &
406 		    BRGPHY_AUXSTS_AN_RES) {
407 		case BRGPHY_RES_1000FD:
408 			mii->mii_media_active |= IFM_1000_T | IFM_FDX;
409 			break;
410 		case BRGPHY_RES_1000HD:
411 			mii->mii_media_active |= IFM_1000_T | IFM_HDX;
412 			break;
413 		case BRGPHY_RES_100FD:
414 			mii->mii_media_active |= IFM_100_TX | IFM_FDX;
415 			break;
416 		case BRGPHY_RES_100T4:
417 			mii->mii_media_active |= IFM_100_T4;
418 			break;
419 		case BRGPHY_RES_100HD:
420 			mii->mii_media_active |= IFM_100_TX | IFM_HDX;
421 			break;
422 		case BRGPHY_RES_10FD:
423 			mii->mii_media_active |= IFM_10_T | IFM_FDX;
424 			break;
425 		case BRGPHY_RES_10HD:
426 			mii->mii_media_active |= IFM_10_T | IFM_HDX;
427 			break;
428 		default:
429 			mii->mii_media_active |= IFM_NONE;
430 			break;
431 		}
432 		return;
433 	}
434 
435 	mii->mii_media_active = ife->ifm_media;
436 
437 	return;
438 }
439 
440 
441 static int
442 brgphy_mii_phy_auto(struct mii_softc *mii)
443 {
444 	int ktcr = 0;
445 
446 	brgphy_loop(mii);
447 	brgphy_reset(mii);
448 	ktcr = BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD;
449 	if (brgphy_mii_model == MII_MODEL_xxBROADCOM_BCM5701)
450 		ktcr |= BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC;
451 	PHY_WRITE(mii, BRGPHY_MII_1000CTL, ktcr);
452 	ktcr = PHY_READ(mii, BRGPHY_MII_1000CTL);
453 	DELAY(1000);
454 	PHY_WRITE(mii, BRGPHY_MII_ANAR,
455 	    BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
456 	DELAY(1000);
457 	PHY_WRITE(mii, BRGPHY_MII_BMCR,
458 	    BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
459 	PHY_WRITE(mii, BRGPHY_MII_IMR, 0xFF00);
460 	return (EJUSTRETURN);
461 }
462 
463 static void
464 brgphy_loop(struct mii_softc *sc)
465 {
466 	u_int32_t bmsr;
467 	int i;
468 
469 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
470 	for (i = 0; i < 15000; i++) {
471 		bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
472 		if (!(bmsr & BRGPHY_BMSR_LINK)) {
473 #if 0
474 			device_printf(sc->mii_dev, "looped %d\n", i);
475 #endif
476 			break;
477 		}
478 		DELAY(10);
479 	}
480 }
481 
482 /* Turn off tap power management on 5401. */
483 static void
484 bcm5401_load_dspcode(struct mii_softc *sc)
485 {
486 	static const struct {
487 		int		reg;
488 		uint16_t	val;
489 	} dspcode[] = {
490 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
491 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
492 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
493 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
494 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
495 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
496 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
497 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
498 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
499 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
500 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
501 		{ 0,				0 },
502 	};
503 	int i;
504 
505 	for (i = 0; dspcode[i].reg != 0; i++)
506 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
507 	DELAY(40);
508 }
509 
510 static void
511 bcm5411_load_dspcode(struct mii_softc *sc)
512 {
513 	static const struct {
514 		int		reg;
515 		uint16_t	val;
516 	} dspcode[] = {
517 		{ 0x1c,				0x8c23 },
518 		{ 0x1c,				0x8ca3 },
519 		{ 0x1c,				0x8c23 },
520 		{ 0,				0 },
521 	};
522 	int i;
523 
524 	for (i = 0; dspcode[i].reg != 0; i++)
525 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
526 }
527 
528 static void
529 bcm5703_load_dspcode(struct mii_softc *sc)
530 {
531 	static const struct {
532 		int		reg;
533 		uint16_t	val;
534 	} dspcode[] = {
535 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
536 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
537 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
538 		{ 0,				0 },
539 	};
540 	int i;
541 
542 	for (i = 0; dspcode[i].reg != 0; i++)
543 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
544 }
545 
546 static void
547 bcm5704_load_dspcode(struct mii_softc *sc)
548 {
549 	static const struct {
550 		int		reg;
551 		u_int16_t	val;
552 	} dspcode[] = {
553 		{ 0x1c,				0x8d68 },
554 		{ 0x1c,				0x8d68 },
555 		{ 0,				0 },
556 	};
557 	int i;
558 
559 	for (i = 0; dspcode[i].reg != 0; i++)
560 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
561 }
562 
563 static void
564 bcm5750_load_dspcode(struct mii_softc *sc)
565 {
566 	static const struct {
567 		int		reg;
568 		u_int16_t	val;
569 	} dspcode[] = {
570 		{ 0x18,				0x0c00 },
571 		{ 0x17,				0x000a },
572 		{ 0x15,				0x310b },
573 		{ 0x17,				0x201f },
574 		{ 0x15,				0x9506 },
575 		{ 0x17,				0x401f },
576 		{ 0x15,				0x14e2 },
577 		{ 0x18,				0x0400 },
578 		{ 0,				0 },
579 	};
580 	int i;
581 
582 	for (i = 0; dspcode[i].reg != 0; i++)
583 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
584 }
585 
586 static void
587 brgphy_reset(struct mii_softc *sc)
588 {
589 	u_int32_t	val;
590 	struct ifnet	*ifp;
591 	struct bge_softc	*bge_sc = NULL;
592 	struct bce_softc	*bce_sc = NULL;
593 
594 	mii_phy_reset(sc);
595 
596 	switch (brgphy_mii_model) {
597 	case MII_MODEL_xxBROADCOM_BCM5400:
598 	case MII_MODEL_xxBROADCOM_BCM5401:
599 		bcm5401_load_dspcode(sc);
600 		break;
601 	case MII_MODEL_xxBROADCOM_BCM5411:
602 		bcm5411_load_dspcode(sc);
603 		break;
604 	case MII_MODEL_xxBROADCOM_BCM5703:
605 		bcm5703_load_dspcode(sc);
606 		break;
607 	case MII_MODEL_xxBROADCOM_BCM5704:
608 		bcm5704_load_dspcode(sc);
609 		break;
610 	case MII_MODEL_xxBROADCOM_BCM5750:
611 	case MII_MODEL_xxBROADCOM_BCM5752:
612 	case MII_MODEL_xxBROADCOM_BCM5714:
613 	case MII_MODEL_xxBROADCOM_BCM5780:
614 	case MII_MODEL_xxBROADCOM_BCM5706C:
615 	case MII_MODEL_xxBROADCOM_BCM5708C:
616 		bcm5750_load_dspcode(sc);
617 		break;
618 	}
619 
620 	ifp = sc->mii_pdata->mii_ifp;
621 
622 	/* Find the driver associated with this PHY. */
623 	if (strcmp(ifp->if_dname, "bge") == 0)	{
624  		bge_sc = ifp->if_softc;
625 	} else if (strcmp(ifp->if_dname, "bce") == 0) {
626 		bce_sc = ifp->if_softc;
627 	}
628 
629 	/* Handle any NetXtreme/bge workarounds. */
630 	if (bge_sc) {
631 	 	/*
632 		 * Don't enable Ethernet@WireSpeed for the 5700 or the
633 		 * 5705 A1 and A2 chips. Make sure we only do this test
634 		 * on "bge" NICs, since other drivers may use this same
635 		 * PHY subdriver.
636 		 */
637 		if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
638 		    bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A1 ||
639 		    bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A2)
640 			return;
641 
642 		/* Enable Ethernet@WireSpeed. */
643 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
644 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
645 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
646 
647 		/* Enable Link LED on Dell boxes */
648 		if (bge_sc->bge_flags & BGE_FLAG_NO3LED) {
649 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
650 		    	PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL)
651 			    & ~BRGPHY_PHY_EXTCTL_3_LED);
652 		}
653 	} else if (bce_sc) {
654 
655 		/* Set or clear jumbo frame settings in the PHY. */
656 		if (ifp->if_mtu > ETHER_MAX_LEN) {
657 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
658 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
659 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
660 				val | BRGPHY_AUXCTL_LONG_PKT);
661 
662 			val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
663 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
664 				val | BRGPHY_PHY_EXTCTL_HIGH_LA);
665 		} else {
666 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
667 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
668 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
669 				val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
670 
671 			val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
672 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
673 				val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
674 		}
675 
676 		/* Enable Ethernet@Wirespeed */
677 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
678 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
679 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, (val | (1 << 15) | (1 << 4)));
680 	}
681 }
682