xref: /freebsd/sys/dev/mii/brgphy.c (revision 6af83ee0d2941d18880b6aaa2b4facd1d30c6106)
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 #include <machine/clock.h>
49 
50 #include <net/if.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 
62 #include <dev/pci/pcireg.h>
63 #include <dev/pci/pcivar.h>
64 
65 #include "miibus_if.h"
66 
67 static int brgphy_probe(device_t);
68 static int brgphy_attach(device_t);
69 
70 static device_method_t brgphy_methods[] = {
71 	/* device interface */
72 	DEVMETHOD(device_probe,		brgphy_probe),
73 	DEVMETHOD(device_attach,	brgphy_attach),
74 	DEVMETHOD(device_detach,	mii_phy_detach),
75 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
76 	{ 0, 0 }
77 };
78 
79 static devclass_t brgphy_devclass;
80 
81 static driver_t brgphy_driver = {
82 	"brgphy",
83 	brgphy_methods,
84 	sizeof(struct mii_softc)
85 };
86 
87 DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
88 
89 static int	brgphy_service(struct mii_softc *, struct mii_data *, int);
90 static void	brgphy_status(struct mii_softc *);
91 static int	brgphy_mii_phy_auto(struct mii_softc *);
92 static void	brgphy_reset(struct mii_softc *);
93 static void	brgphy_loop(struct mii_softc *);
94 static void	bcm5401_load_dspcode(struct mii_softc *);
95 static void	bcm5411_load_dspcode(struct mii_softc *);
96 static void	bcm5703_load_dspcode(struct mii_softc *);
97 static void	bcm5750_load_dspcode(struct mii_softc *);
98 static int	brgphy_mii_model;
99 
100 static int
101 brgphy_probe(dev)
102 	device_t		dev;
103 {
104 	struct mii_attach_args *ma;
105 
106 	ma = device_get_ivars(dev);
107 
108 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
109 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5400) {
110 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5400);
111 		return(0);
112 	}
113 
114 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
115 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5401) {
116 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5401);
117 		return(0);
118 	}
119 
120 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
121 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5411) {
122 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5411);
123 		return(0);
124 	}
125 
126 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
127 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5701) {
128 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5701);
129 		return(0);
130 	}
131 
132 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
133 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5703) {
134 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5703);
135 		return(0);
136 	}
137 
138 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
139 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5704) {
140 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5704);
141 		return(0);
142 	}
143 
144 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
145 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5705) {
146 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5705);
147 		return(0);
148 	}
149 
150 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
151 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5750) {
152 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5750);
153 		return(0);
154 	}
155 
156 	return(ENXIO);
157 }
158 
159 static int
160 brgphy_attach(dev)
161 	device_t		dev;
162 {
163 	struct mii_softc *sc;
164 	struct mii_attach_args *ma;
165 	struct mii_data *mii;
166 	const char *sep = "";
167 	struct bge_softc *bge_sc;
168 	int fast_ether_only = FALSE;
169 
170 	sc = device_get_softc(dev);
171 	ma = device_get_ivars(dev);
172 	sc->mii_dev = device_get_parent(dev);
173 	mii = device_get_softc(sc->mii_dev);
174 	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
175 
176 	sc->mii_inst = mii->mii_instance;
177 	sc->mii_phy = ma->mii_phyno;
178 	sc->mii_service = brgphy_service;
179 	sc->mii_pdata = mii;
180 
181 	sc->mii_flags |= MIIF_NOISOLATE;
182 	mii->mii_instance++;
183 
184 #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
185 #define PRINT(s)	printf("%s%s", sep, s); sep = ", "
186 
187 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
188 	    BMCR_ISO);
189 #if 0
190 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
191 	    BMCR_LOOP|BMCR_S100);
192 #endif
193 
194 	brgphy_mii_model = MII_MODEL(ma->mii_id2);
195 	brgphy_reset(sc);
196 
197 
198 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
199 	sc->mii_capabilities &= ~BMSR_ANEG;
200 	device_printf(dev, " ");
201 	mii_add_media(sc);
202 
203 	/* The 590x chips are 10/100 only. */
204 
205 	bge_sc = mii->mii_ifp->if_softc;
206 
207 	if (strcmp(mii->mii_ifp->if_dname, "bge") == 0 &&
208 	    pci_get_vendor(bge_sc->bge_dev) == BCOM_VENDORID &&
209 	    (pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901 ||
210 	    pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901A2))
211 		fast_ether_only = TRUE;
212 
213 	if (fast_ether_only == FALSE) {
214 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0,
215 		    sc->mii_inst), BRGPHY_BMCR_FDX);
216 		PRINT(", 1000baseTX");
217 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
218 		    IFM_FDX, sc->mii_inst), 0);
219 		PRINT("1000baseTX-FDX");
220 	}
221 
222 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
223 	PRINT("auto");
224 
225 	printf("\n");
226 #undef ADD
227 #undef PRINT
228 
229 	MIIBUS_MEDIAINIT(sc->mii_dev);
230 	return(0);
231 }
232 
233 static int
234 brgphy_service(sc, mii, cmd)
235 	struct mii_softc *sc;
236 	struct mii_data *mii;
237 	int cmd;
238 {
239 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
240 	int reg, speed, gig;
241 
242 	switch (cmd) {
243 	case MII_POLLSTAT:
244 		/*
245 		 * If we're not polling our PHY instance, just return.
246 		 */
247 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
248 			return (0);
249 		break;
250 
251 	case MII_MEDIACHG:
252 		/*
253 		 * If the media indicates a different PHY instance,
254 		 * isolate ourselves.
255 		 */
256 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
257 			reg = PHY_READ(sc, MII_BMCR);
258 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
259 			return (0);
260 		}
261 
262 		/*
263 		 * If the interface is not up, don't do anything.
264 		 */
265 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
266 			break;
267 
268 		brgphy_reset(sc);	/* XXX hardware bug work-around */
269 
270 		switch (IFM_SUBTYPE(ife->ifm_media)) {
271 		case IFM_AUTO:
272 #ifdef foo
273 			/*
274 			 * If we're already in auto mode, just return.
275 			 */
276 			if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
277 				return (0);
278 #endif
279 			(void) brgphy_mii_phy_auto(sc);
280 			break;
281 		case IFM_1000_T:
282 			speed = BRGPHY_S1000;
283 			goto setit;
284 		case IFM_100_TX:
285 			speed = BRGPHY_S100;
286 			goto setit;
287 		case IFM_10_T:
288 			speed = BRGPHY_S10;
289 setit:
290 			brgphy_loop(sc);
291 			if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
292 				speed |= BRGPHY_BMCR_FDX;
293 				gig = BRGPHY_1000CTL_AFD;
294 			} else {
295 				gig = BRGPHY_1000CTL_AHD;
296 			}
297 
298 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
299 			PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);
300 			PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
301 
302 			if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
303 				break;
304 
305 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
306 			PHY_WRITE(sc, BRGPHY_MII_BMCR,
307 			    speed|BRGPHY_BMCR_AUTOEN|BRGPHY_BMCR_STARTNEG);
308 
309 			if (brgphy_mii_model != MII_MODEL_xxBROADCOM_BCM5701)
310 				break;
311 
312 			/*
313 			 * When settning the link manually, one side must
314 			 * be the master and the other the slave. However
315 			 * ifmedia doesn't give us a good way to specify
316 			 * this, so we fake it by using one of the LINK
317 			 * flags. If LINK0 is set, we program the PHY to
318 			 * be a master, otherwise it's a slave.
319 			 */
320 			if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
321 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
322 				    gig|BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
323 			} else {
324 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
325 				    gig|BRGPHY_1000CTL_MSE);
326 			}
327 			break;
328 #ifdef foo
329 		case IFM_NONE:
330 			PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
331 			break;
332 #endif
333 		case IFM_100_T4:
334 		default:
335 			return (EINVAL);
336 		}
337 		break;
338 
339 	case MII_TICK:
340 		/*
341 		 * If we're not currently selected, just return.
342 		 */
343 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
344 			return (0);
345 
346 		/*
347 		 * Is the interface even up?
348 		 */
349 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
350 			return (0);
351 
352 		/*
353 		 * Only used for autonegotiation.
354 		 */
355 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
356 			break;
357 
358 		/*
359 		 * Check to see if we have link.  If we do, we don't
360 		 * need to restart the autonegotiation process.  Read
361 		 * the BMSR twice in case it's latched.
362 		 */
363 		reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
364 		if (reg & BRGPHY_AUXSTS_LINK)
365 			break;
366 
367 		/*
368 		 * Only retry autonegotiation every 5 seconds.
369 		 */
370 		if (++sc->mii_ticks <= 5)
371 			break;
372 
373 		sc->mii_ticks = 0;
374 		brgphy_mii_phy_auto(sc);
375 		return (0);
376 	}
377 
378 	/* Update the media status. */
379 	brgphy_status(sc);
380 
381 	/*
382 	 * Callback if something changed. Note that we need to poke
383 	 * the DSP on the Broadcom PHYs if the media changes.
384 	 *
385 	 */
386 	if (sc->mii_media_active != mii->mii_media_active ||
387 	    sc->mii_media_status != mii->mii_media_status ||
388 	    cmd == MII_MEDIACHG) {
389 		switch (brgphy_mii_model) {
390 		case MII_MODEL_xxBROADCOM_BCM5401:
391 			bcm5401_load_dspcode(sc);
392 			break;
393 		case MII_MODEL_xxBROADCOM_BCM5411:
394 			bcm5411_load_dspcode(sc);
395 			break;
396 		}
397 	}
398 	mii_phy_update(sc, cmd);
399 	return (0);
400 }
401 
402 static void
403 brgphy_status(sc)
404 	struct mii_softc *sc;
405 {
406 	struct mii_data *mii = sc->mii_pdata;
407 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
408 	int bmsr, bmcr;
409 
410 	mii->mii_media_status = IFM_AVALID;
411 	mii->mii_media_active = IFM_ETHER;
412 
413 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
414 	if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK)
415 		mii->mii_media_status |= IFM_ACTIVE;
416 
417 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
418 
419 	if (bmcr & BRGPHY_BMCR_LOOP)
420 		mii->mii_media_active |= IFM_LOOP;
421 
422 	if (bmcr & BRGPHY_BMCR_AUTOEN) {
423 		if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) {
424 			/* Erg, still trying, I guess... */
425 			mii->mii_media_active |= IFM_NONE;
426 			return;
427 		}
428 
429 		switch (PHY_READ(sc, BRGPHY_MII_AUXSTS) &
430 		    BRGPHY_AUXSTS_AN_RES) {
431 		case BRGPHY_RES_1000FD:
432 			mii->mii_media_active |= IFM_1000_T | IFM_FDX;
433 			break;
434 		case BRGPHY_RES_1000HD:
435 			mii->mii_media_active |= IFM_1000_T | IFM_HDX;
436 			break;
437 		case BRGPHY_RES_100FD:
438 			mii->mii_media_active |= IFM_100_TX | IFM_FDX;
439 			break;
440 		case BRGPHY_RES_100T4:
441 			mii->mii_media_active |= IFM_100_T4;
442 			break;
443 		case BRGPHY_RES_100HD:
444 			mii->mii_media_active |= IFM_100_TX | IFM_HDX;
445 			break;
446 		case BRGPHY_RES_10FD:
447 			mii->mii_media_active |= IFM_10_T | IFM_FDX;
448 			break;
449 		case BRGPHY_RES_10HD:
450 			mii->mii_media_active |= IFM_10_T | IFM_HDX;
451 			break;
452 		default:
453 			mii->mii_media_active |= IFM_NONE;
454 			break;
455 		}
456 		return;
457 	}
458 
459 	mii->mii_media_active = ife->ifm_media;
460 
461 	return;
462 }
463 
464 
465 static int
466 brgphy_mii_phy_auto(mii)
467 	struct mii_softc *mii;
468 {
469 	int ktcr = 0;
470 
471 	brgphy_loop(mii);
472 	brgphy_reset(mii);
473 	ktcr = BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD;
474 	if (brgphy_mii_model == MII_MODEL_xxBROADCOM_BCM5701)
475 		ktcr |= BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC;
476 	PHY_WRITE(mii, BRGPHY_MII_1000CTL, ktcr);
477 	ktcr = PHY_READ(mii, BRGPHY_MII_1000CTL);
478 	DELAY(1000);
479 	PHY_WRITE(mii, BRGPHY_MII_ANAR,
480 	    BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
481 	DELAY(1000);
482 	PHY_WRITE(mii, BRGPHY_MII_BMCR,
483 	    BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
484 	PHY_WRITE(mii, BRGPHY_MII_IMR, 0xFF00);
485 	return (EJUSTRETURN);
486 }
487 
488 static void
489 brgphy_loop(struct mii_softc *sc)
490 {
491 	u_int32_t bmsr;
492 	int i;
493 
494 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
495 	for (i = 0; i < 15000; i++) {
496 		bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
497 		if (!(bmsr & BRGPHY_BMSR_LINK)) {
498 #if 0
499 			device_printf(sc->mii_dev, "looped %d\n", i);
500 #endif
501 			break;
502 		}
503 		DELAY(10);
504 	}
505 }
506 
507 /* Turn off tap power management on 5401. */
508 static void
509 bcm5401_load_dspcode(struct mii_softc *sc)
510 {
511 	static const struct {
512 		int		reg;
513 		uint16_t	val;
514 	} dspcode[] = {
515 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
516 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
517 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
518 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
519 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
520 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
521 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
522 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
523 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
524 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
525 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
526 		{ 0,				0 },
527 	};
528 	int i;
529 
530 	for (i = 0; dspcode[i].reg != 0; i++)
531 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
532 	DELAY(40);
533 }
534 
535 static void
536 bcm5411_load_dspcode(struct mii_softc *sc)
537 {
538 	static const struct {
539 		int		reg;
540 		uint16_t	val;
541 	} dspcode[] = {
542 		{ 0x1c,				0x8c23 },
543 		{ 0x1c,				0x8ca3 },
544 		{ 0x1c,				0x8c23 },
545 		{ 0,				0 },
546 	};
547 	int i;
548 
549 	for (i = 0; dspcode[i].reg != 0; i++)
550 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
551 }
552 
553 static void
554 bcm5703_load_dspcode(struct mii_softc *sc)
555 {
556 	static const struct {
557 		int		reg;
558 		uint16_t	val;
559 	} dspcode[] = {
560 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
561 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
562 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
563 		{ 0,				0 },
564 	};
565 	int i;
566 
567 	for (i = 0; dspcode[i].reg != 0; i++)
568 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
569 }
570 
571 static void
572 bcm5704_load_dspcode(struct mii_softc *sc)
573 {
574 	static const struct {
575 		int		reg;
576 		u_int16_t	val;
577 	} dspcode[] = {
578 		{ 0x1c,				0x8d68 },
579 		{ 0x1c,				0x8d68 },
580 		{ 0,				0 },
581 	};
582 	int i;
583 
584 	for (i = 0; dspcode[i].reg != 0; i++)
585 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
586 }
587 
588 static void
589 bcm5750_load_dspcode(struct mii_softc *sc)
590 {
591 	static const struct {
592 		int		reg;
593 		u_int16_t	val;
594 	} dspcode[] = {
595 		{ 0x18,				0x0c00 },
596 		{ 0x17,				0x000a },
597 		{ 0x15,				0x310b },
598 		{ 0x17,				0x201f },
599 		{ 0x15,				0x9506 },
600 		{ 0x17,				0x401f },
601 		{ 0x15,				0x14e2 },
602 		{ 0x18,				0x0400 },
603 		{ 0,				0 },
604 	};
605 	int i;
606 
607 	for (i = 0; dspcode[i].reg != 0; i++)
608 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
609 }
610 
611 static void
612 brgphy_reset(struct mii_softc *sc)
613 {
614 	u_int32_t	val;
615 	struct ifnet	*ifp;
616 	struct bge_softc	*bge_sc;
617 
618 	mii_phy_reset(sc);
619 
620 	switch (brgphy_mii_model) {
621 	case MII_MODEL_xxBROADCOM_BCM5401:
622 		bcm5401_load_dspcode(sc);
623 		break;
624 	case MII_MODEL_xxBROADCOM_BCM5411:
625 		bcm5411_load_dspcode(sc);
626 		break;
627 	case MII_MODEL_xxBROADCOM_BCM5703:
628 		bcm5703_load_dspcode(sc);
629 		break;
630 	case MII_MODEL_xxBROADCOM_BCM5704:
631 		bcm5704_load_dspcode(sc);
632 		break;
633 	case MII_MODEL_xxBROADCOM_BCM5750:
634 		bcm5750_load_dspcode(sc);
635 		break;
636 	}
637 
638 	ifp = sc->mii_pdata->mii_ifp;
639 	bge_sc = ifp->if_softc;
640 
641 	/*
642 	 * Don't enable Ethernet@WireSpeed for the 5700 or the
643 	 * 5705 A1 and A2 chips. Make sure we only do this test
644 	 * on "bge" NICs, since other drivers may use this same
645 	 * PHY subdriver.
646 	 */
647 	if (strcmp(ifp->if_dname, "bge") == 0 &&
648 	    (bge_sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
649 	    bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A1 ||
650 	    bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A2))
651 		return;
652 
653 	/* Enable Ethernet@WireSpeed. */
654 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
655 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
656 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
657 
658 	/* Enable Link LED on Dell boxes */
659 	if (bge_sc->bge_no_3_led) {
660 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
661 		    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL)
662 		    & ~BRGPHY_PHY_EXTCTL_3_LED);
663 	}
664 }
665