xref: /freebsd/sys/dev/mii/brgphy.c (revision 87569f75a91f298c52a71823c04d41cf53c88889)
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(device_t dev)
102 {
103 	struct mii_attach_args *ma;
104 
105 	ma = device_get_ivars(dev);
106 
107 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
108 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5400) {
109 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5400);
110 		return(0);
111 	}
112 
113 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
114 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5401) {
115 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5401);
116 		return(0);
117 	}
118 
119 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
120 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5411) {
121 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5411);
122 		return(0);
123 	}
124 
125 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
126 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5701) {
127 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5701);
128 		return(0);
129 	}
130 
131 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
132 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5703) {
133 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5703);
134 		return(0);
135 	}
136 
137 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
138 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5704) {
139 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5704);
140 		return(0);
141 	}
142 
143 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
144 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5705) {
145 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5705);
146 		return(0);
147 	}
148 
149 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
150 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5750) {
151 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5750);
152 		return(0);
153 	}
154 
155 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
156 	    MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5714) {
157 		device_set_desc(dev, MII_STR_xxBROADCOM_BCM5714);
158 		return(0);
159 	}
160 
161 	return(ENXIO);
162 }
163 
164 static int
165 brgphy_attach(device_t dev)
166 {
167 	struct mii_softc *sc;
168 	struct mii_attach_args *ma;
169 	struct mii_data *mii;
170 	const char *sep = "";
171 	struct bge_softc *bge_sc;
172 	int fast_ether_only = FALSE;
173 
174 	sc = device_get_softc(dev);
175 	ma = device_get_ivars(dev);
176 	sc->mii_dev = device_get_parent(dev);
177 	mii = device_get_softc(sc->mii_dev);
178 	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
179 
180 	sc->mii_inst = mii->mii_instance;
181 	sc->mii_phy = ma->mii_phyno;
182 	sc->mii_service = brgphy_service;
183 	sc->mii_pdata = mii;
184 
185 	sc->mii_flags |= MIIF_NOISOLATE;
186 	mii->mii_instance++;
187 
188 #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
189 #define PRINT(s)	printf("%s%s", sep, s); sep = ", "
190 
191 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
192 	    BMCR_ISO);
193 #if 0
194 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
195 	    BMCR_LOOP|BMCR_S100);
196 #endif
197 
198 	brgphy_mii_model = MII_MODEL(ma->mii_id2);
199 	brgphy_reset(sc);
200 
201 
202 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
203 	sc->mii_capabilities &= ~BMSR_ANEG;
204 	device_printf(dev, " ");
205 	mii_add_media(sc);
206 
207 	/* The 590x chips are 10/100 only. */
208 
209 	bge_sc = mii->mii_ifp->if_softc;
210 
211 	if (strcmp(mii->mii_ifp->if_dname, "bge") == 0 &&
212 	    pci_get_vendor(bge_sc->bge_dev) == BCOM_VENDORID &&
213 	    (pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901 ||
214 	    pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901A2))
215 		fast_ether_only = TRUE;
216 
217 	if (fast_ether_only == FALSE) {
218 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0,
219 		    sc->mii_inst), BRGPHY_BMCR_FDX);
220 		PRINT(", 1000baseTX");
221 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
222 		    IFM_FDX, sc->mii_inst), 0);
223 		PRINT("1000baseTX-FDX");
224 	}
225 
226 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
227 	PRINT("auto");
228 
229 	printf("\n");
230 #undef ADD
231 #undef PRINT
232 
233 	MIIBUS_MEDIAINIT(sc->mii_dev);
234 	return(0);
235 }
236 
237 static int
238 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
239 {
240 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
241 	int reg, speed, gig;
242 
243 	switch (cmd) {
244 	case MII_POLLSTAT:
245 		/*
246 		 * If we're not polling our PHY instance, just return.
247 		 */
248 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
249 			return (0);
250 		break;
251 
252 	case MII_MEDIACHG:
253 		/*
254 		 * If the media indicates a different PHY instance,
255 		 * isolate ourselves.
256 		 */
257 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
258 			reg = PHY_READ(sc, MII_BMCR);
259 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
260 			return (0);
261 		}
262 
263 		/*
264 		 * If the interface is not up, don't do anything.
265 		 */
266 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
267 			break;
268 
269 		brgphy_reset(sc);	/* XXX hardware bug work-around */
270 
271 		switch (IFM_SUBTYPE(ife->ifm_media)) {
272 		case IFM_AUTO:
273 #ifdef foo
274 			/*
275 			 * If we're already in auto mode, just return.
276 			 */
277 			if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
278 				return (0);
279 #endif
280 			(void) brgphy_mii_phy_auto(sc);
281 			break;
282 		case IFM_1000_T:
283 			speed = BRGPHY_S1000;
284 			goto setit;
285 		case IFM_100_TX:
286 			speed = BRGPHY_S100;
287 			goto setit;
288 		case IFM_10_T:
289 			speed = BRGPHY_S10;
290 setit:
291 			brgphy_loop(sc);
292 			if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
293 				speed |= BRGPHY_BMCR_FDX;
294 				gig = BRGPHY_1000CTL_AFD;
295 			} else {
296 				gig = BRGPHY_1000CTL_AHD;
297 			}
298 
299 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
300 			PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);
301 			PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
302 
303 			if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
304 				break;
305 
306 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
307 			PHY_WRITE(sc, BRGPHY_MII_BMCR,
308 			    speed|BRGPHY_BMCR_AUTOEN|BRGPHY_BMCR_STARTNEG);
309 
310 			if (brgphy_mii_model != MII_MODEL_xxBROADCOM_BCM5701)
311 				break;
312 
313 			/*
314 			 * When settning the link manually, one side must
315 			 * be the master and the other the slave. However
316 			 * ifmedia doesn't give us a good way to specify
317 			 * this, so we fake it by using one of the LINK
318 			 * flags. If LINK0 is set, we program the PHY to
319 			 * be a master, otherwise it's a slave.
320 			 */
321 			if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
322 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
323 				    gig|BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
324 			} else {
325 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
326 				    gig|BRGPHY_1000CTL_MSE);
327 			}
328 			break;
329 #ifdef foo
330 		case IFM_NONE:
331 			PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
332 			break;
333 #endif
334 		case IFM_100_T4:
335 		default:
336 			return (EINVAL);
337 		}
338 		break;
339 
340 	case MII_TICK:
341 		/*
342 		 * If we're not currently selected, just return.
343 		 */
344 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
345 			return (0);
346 
347 		/*
348 		 * Is the interface even up?
349 		 */
350 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
351 			return (0);
352 
353 		/*
354 		 * Only used for autonegotiation.
355 		 */
356 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
357 			break;
358 
359 		/*
360 		 * Check to see if we have link.  If we do, we don't
361 		 * need to restart the autonegotiation process.  Read
362 		 * the BMSR twice in case it's latched.
363 		 */
364 		reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
365 		if (reg & BRGPHY_AUXSTS_LINK)
366 			break;
367 
368 		/*
369 		 * Only retry autonegotiation every 5 seconds.
370 		 */
371 		if (++sc->mii_ticks <= 5)
372 			break;
373 
374 		sc->mii_ticks = 0;
375 		brgphy_mii_phy_auto(sc);
376 		break;
377 	}
378 
379 	/* Update the media status. */
380 	brgphy_status(sc);
381 
382 	/*
383 	 * Callback if something changed. Note that we need to poke
384 	 * the DSP on the Broadcom PHYs if the media changes.
385 	 *
386 	 */
387 	if (sc->mii_media_active != mii->mii_media_active ||
388 	    sc->mii_media_status != mii->mii_media_status ||
389 	    cmd == MII_MEDIACHG) {
390 		switch (brgphy_mii_model) {
391 		case MII_MODEL_xxBROADCOM_BCM5400:
392 		case MII_MODEL_xxBROADCOM_BCM5401:
393 			bcm5401_load_dspcode(sc);
394 			break;
395 		case MII_MODEL_xxBROADCOM_BCM5411:
396 			bcm5411_load_dspcode(sc);
397 			break;
398 		}
399 	}
400 	mii_phy_update(sc, cmd);
401 	return (0);
402 }
403 
404 static void
405 brgphy_status(struct mii_softc *sc)
406 {
407 	struct mii_data *mii = sc->mii_pdata;
408 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
409 	int bmsr, bmcr;
410 
411 	mii->mii_media_status = IFM_AVALID;
412 	mii->mii_media_active = IFM_ETHER;
413 
414 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
415 	if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK)
416 		mii->mii_media_status |= IFM_ACTIVE;
417 
418 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
419 
420 	if (bmcr & BRGPHY_BMCR_LOOP)
421 		mii->mii_media_active |= IFM_LOOP;
422 
423 	if (bmcr & BRGPHY_BMCR_AUTOEN) {
424 		if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) {
425 			/* Erg, still trying, I guess... */
426 			mii->mii_media_active |= IFM_NONE;
427 			return;
428 		}
429 
430 		switch (PHY_READ(sc, BRGPHY_MII_AUXSTS) &
431 		    BRGPHY_AUXSTS_AN_RES) {
432 		case BRGPHY_RES_1000FD:
433 			mii->mii_media_active |= IFM_1000_T | IFM_FDX;
434 			break;
435 		case BRGPHY_RES_1000HD:
436 			mii->mii_media_active |= IFM_1000_T | IFM_HDX;
437 			break;
438 		case BRGPHY_RES_100FD:
439 			mii->mii_media_active |= IFM_100_TX | IFM_FDX;
440 			break;
441 		case BRGPHY_RES_100T4:
442 			mii->mii_media_active |= IFM_100_T4;
443 			break;
444 		case BRGPHY_RES_100HD:
445 			mii->mii_media_active |= IFM_100_TX | IFM_HDX;
446 			break;
447 		case BRGPHY_RES_10FD:
448 			mii->mii_media_active |= IFM_10_T | IFM_FDX;
449 			break;
450 		case BRGPHY_RES_10HD:
451 			mii->mii_media_active |= IFM_10_T | IFM_HDX;
452 			break;
453 		default:
454 			mii->mii_media_active |= IFM_NONE;
455 			break;
456 		}
457 		return;
458 	}
459 
460 	mii->mii_media_active = ife->ifm_media;
461 
462 	return;
463 }
464 
465 
466 static int
467 brgphy_mii_phy_auto(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_BCM5400:
622 	case MII_MODEL_xxBROADCOM_BCM5401:
623 		bcm5401_load_dspcode(sc);
624 		break;
625 	case MII_MODEL_xxBROADCOM_BCM5411:
626 		bcm5411_load_dspcode(sc);
627 		break;
628 	case MII_MODEL_xxBROADCOM_BCM5703:
629 		bcm5703_load_dspcode(sc);
630 		break;
631 	case MII_MODEL_xxBROADCOM_BCM5704:
632 		bcm5704_load_dspcode(sc);
633 		break;
634 	case MII_MODEL_xxBROADCOM_BCM5750:
635 	case MII_MODEL_xxBROADCOM_BCM5714:
636 		bcm5750_load_dspcode(sc);
637 		break;
638 	}
639 
640 	ifp = sc->mii_pdata->mii_ifp;
641 	bge_sc = ifp->if_softc;
642 
643 	/*
644 	 * Don't enable Ethernet@WireSpeed for the 5700 or the
645 	 * 5705 A1 and A2 chips. Make sure we only do this test
646 	 * on "bge" NICs, since other drivers may use this same
647 	 * PHY subdriver.
648 	 */
649 	if (strcmp(ifp->if_dname, "bge") == 0 &&
650 	    (bge_sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
651 	    bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A1 ||
652 	    bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A2))
653 		return;
654 
655 	/* Enable Ethernet@WireSpeed. */
656 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
657 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
658 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
659 
660 	/* Enable Link LED on Dell boxes */
661 	if (bge_sc->bge_no_3_led) {
662 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
663 		    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL)
664 		    & ~BRGPHY_PHY_EXTCTL_3_LED);
665 	}
666 }
667