xref: /freebsd/sys/dev/mii/brgphy.c (revision 8a6eceff3ce76a4bb9078f3fa710f51ab6671ca3)
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 BCM54xx/57xx 1000baseTX PHY.
38  */
39 
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/module.h>
44 #include <sys/socket.h>
45 #include <sys/bus.h>
46 #include <sys/taskqueue.h>
47 
48 #include <net/if.h>
49 #include <net/if_var.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 struct brgphy_softc {
72 	struct mii_softc mii_sc;
73 	int serdes_flags;	/* Keeps track of the serdes type used */
74 #define BRGPHY_5706S		0x0001
75 #define BRGPHY_5708S		0x0002
76 #define BRGPHY_NOANWAIT		0x0004
77 #define BRGPHY_5709S		0x0008
78 	int bce_phy_flags;	/* PHY flags transferred from the MAC driver */
79 };
80 
81 static device_method_t brgphy_methods[] = {
82 	/* device interface */
83 	DEVMETHOD(device_probe,		brgphy_probe),
84 	DEVMETHOD(device_attach,	brgphy_attach),
85 	DEVMETHOD(device_detach,	mii_phy_detach),
86 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
87 	DEVMETHOD_END
88 };
89 
90 static devclass_t brgphy_devclass;
91 
92 static driver_t brgphy_driver = {
93 	"brgphy",
94 	brgphy_methods,
95 	sizeof(struct brgphy_softc)
96 };
97 
98 DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
99 
100 static int	brgphy_service(struct mii_softc *, struct mii_data *, int);
101 static void	brgphy_setmedia(struct mii_softc *, int);
102 static void	brgphy_status(struct mii_softc *);
103 static void	brgphy_mii_phy_auto(struct mii_softc *, int);
104 static void	brgphy_reset(struct mii_softc *);
105 static void	brgphy_enable_loopback(struct mii_softc *);
106 static void	bcm5401_load_dspcode(struct mii_softc *);
107 static void	bcm5411_load_dspcode(struct mii_softc *);
108 static void	bcm54k2_load_dspcode(struct mii_softc *);
109 static void	brgphy_fixup_5704_a0_bug(struct mii_softc *);
110 static void	brgphy_fixup_adc_bug(struct mii_softc *);
111 static void	brgphy_fixup_adjust_trim(struct mii_softc *);
112 static void	brgphy_fixup_ber_bug(struct mii_softc *);
113 static void	brgphy_fixup_crc_bug(struct mii_softc *);
114 static void	brgphy_fixup_jitter_bug(struct mii_softc *);
115 static void	brgphy_ethernet_wirespeed(struct mii_softc *);
116 static void	brgphy_jumbo_settings(struct mii_softc *, u_long);
117 
118 static const struct mii_phydesc brgphys[] = {
119 	MII_PHY_DESC(BROADCOM, BCM5400),
120 	MII_PHY_DESC(BROADCOM, BCM5401),
121 	MII_PHY_DESC(BROADCOM, BCM5402),
122 	MII_PHY_DESC(BROADCOM, BCM5411),
123 	MII_PHY_DESC(BROADCOM, BCM5404),
124 	MII_PHY_DESC(BROADCOM, BCM5424),
125 	MII_PHY_DESC(BROADCOM, BCM54K2),
126 	MII_PHY_DESC(BROADCOM, BCM5701),
127 	MII_PHY_DESC(BROADCOM, BCM5703),
128 	MII_PHY_DESC(BROADCOM, BCM5704),
129 	MII_PHY_DESC(BROADCOM, BCM5705),
130 	MII_PHY_DESC(BROADCOM, BCM5706),
131 	MII_PHY_DESC(BROADCOM, BCM5714),
132 	MII_PHY_DESC(BROADCOM, BCM5421),
133 	MII_PHY_DESC(BROADCOM, BCM5750),
134 	MII_PHY_DESC(BROADCOM, BCM5752),
135 	MII_PHY_DESC(BROADCOM, BCM5780),
136 	MII_PHY_DESC(BROADCOM, BCM5708C),
137 	MII_PHY_DESC(BROADCOM, BCM5466),
138 	MII_PHY_DESC(BROADCOM2, BCM5478),
139 	MII_PHY_DESC(BROADCOM2, BCM5488),
140 	MII_PHY_DESC(BROADCOM2, BCM5482),
141 	MII_PHY_DESC(BROADCOM2, BCM5708S),
142 	MII_PHY_DESC(BROADCOM2, BCM5709C),
143 	MII_PHY_DESC(BROADCOM2, BCM5709S),
144 	MII_PHY_DESC(BROADCOM2, BCM5709CAX),
145 	MII_PHY_DESC(BROADCOM2, BCM5722),
146 	MII_PHY_DESC(BROADCOM2, BCM5755),
147 	MII_PHY_DESC(BROADCOM2, BCM5754),
148 	MII_PHY_DESC(BROADCOM2, BCM5761),
149 	MII_PHY_DESC(BROADCOM2, BCM5784),
150 #ifdef notyet	/* better handled by ukphy(4) until WARs are implemented */
151 	MII_PHY_DESC(BROADCOM2, BCM5785),
152 #endif
153 	MII_PHY_DESC(BROADCOM3, BCM5717C),
154 	MII_PHY_DESC(BROADCOM3, BCM5719C),
155 	MII_PHY_DESC(BROADCOM3, BCM5720C),
156 	MII_PHY_DESC(BROADCOM3, BCM57765),
157 	MII_PHY_DESC(BROADCOM3, BCM57780),
158 	MII_PHY_DESC(BROADCOM4, BCM5725C),
159 	MII_PHY_DESC(xxBROADCOM_ALT1, BCM5906),
160 	MII_PHY_END
161 };
162 
163 static const struct mii_phy_funcs brgphy_funcs = {
164 	brgphy_service,
165 	brgphy_status,
166 	brgphy_reset
167 };
168 
169 static const struct hs21_type {
170 	const uint32_t id;
171 	const char *prod;
172 } hs21_type_lists[] = {
173 	{ 0x57081021, "IBM eServer BladeCenter HS21" },
174 	{ 0x57081011, "IBM eServer BladeCenter HS21 -[8853PAU]-" },
175 };
176 
177 static int
178 detect_hs21(struct bce_softc *bce_sc)
179 {
180 	char *sysenv;
181 	int found, i;
182 
183 	found = 0;
184 	sysenv = kern_getenv("smbios.system.product");
185 	if (sysenv == NULL)
186 		return (found);
187 	for (i = 0; i < nitems(hs21_type_lists); i++) {
188 		if (bce_sc->bce_chipid == hs21_type_lists[i].id &&
189 		    strncmp(sysenv, hs21_type_lists[i].prod,
190 		    strlen(hs21_type_lists[i].prod)) == 0) {
191 			found++;
192 			break;
193 		}
194 	}
195 	freeenv(sysenv);
196 	return (found);
197 }
198 
199 /* Search for our PHY in the list of known PHYs */
200 static int
201 brgphy_probe(device_t dev)
202 {
203 
204 	return (mii_phy_dev_probe(dev, brgphys, BUS_PROBE_DEFAULT));
205 }
206 
207 /* Attach the PHY to the MII bus */
208 static int
209 brgphy_attach(device_t dev)
210 {
211 	struct brgphy_softc *bsc;
212 	struct bge_softc *bge_sc = NULL;
213 	struct bce_softc *bce_sc = NULL;
214 	struct mii_softc *sc;
215 
216 	bsc = device_get_softc(dev);
217 	sc = &bsc->mii_sc;
218 
219 	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
220 	    &brgphy_funcs, 0);
221 
222 	bsc->serdes_flags = 0;
223 
224 	/* Find the MAC driver associated with this PHY. */
225 	if (mii_dev_mac_match(dev, "bge"))
226 		bge_sc = mii_dev_mac_softc(dev);
227 	else if (mii_dev_mac_match(dev, "bce"))
228 		bce_sc = mii_dev_mac_softc(dev);
229 
230 	/* Handle any special cases based on the PHY ID */
231 	switch (sc->mii_mpd_oui) {
232 	case MII_OUI_BROADCOM:
233 		switch (sc->mii_mpd_model) {
234 		case MII_MODEL_BROADCOM_BCM5706:
235 		case MII_MODEL_BROADCOM_BCM5714:
236 			/*
237 			 * The 5464 PHY used in the 5706 supports both copper
238 			 * and fiber interfaces over GMII.  Need to check the
239 			 * shadow registers to see which mode is actually
240 			 * in effect, and therefore whether we have 5706C or
241 			 * 5706S.
242 			 */
243 			PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
244 				BRGPHY_SHADOW_1C_MODE_CTRL);
245 			if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
246 				BRGPHY_SHADOW_1C_ENA_1000X) {
247 				bsc->serdes_flags |= BRGPHY_5706S;
248 				sc->mii_flags |= MIIF_HAVEFIBER;
249 			}
250 			break;
251 		}
252 		break;
253 	case MII_OUI_BROADCOM2:
254 		switch (sc->mii_mpd_model) {
255 		case MII_MODEL_BROADCOM2_BCM5708S:
256 			bsc->serdes_flags |= BRGPHY_5708S;
257 			sc->mii_flags |= MIIF_HAVEFIBER;
258 			break;
259 		case MII_MODEL_BROADCOM2_BCM5709S:
260 			/*
261 			 * XXX
262 			 * 5720S and 5709S shares the same PHY id.
263 			 * Assume 5720S PHY if parent device is bge(4).
264 			 */
265 			if (bge_sc != NULL)
266 				bsc->serdes_flags |= BRGPHY_5708S;
267 			else
268 				bsc->serdes_flags |= BRGPHY_5709S;
269 			sc->mii_flags |= MIIF_HAVEFIBER;
270 			break;
271 		}
272 		break;
273 	}
274 
275 	PHY_RESET(sc);
276 
277 	/* Read the PHY's capabilities. */
278 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
279 	if (sc->mii_capabilities & BMSR_EXTSTAT)
280 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
281 	device_printf(dev, " ");
282 
283 	/* Add the supported media types */
284 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
285 		mii_phy_add_media(sc);
286 		printf("\n");
287 	} else {
288 		sc->mii_anegticks = MII_ANEGTICKS_GIGE;
289 		ifmedia_add(&sc->mii_pdata->mii_media,
290 		    IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
291 		    0, NULL);
292 		printf("1000baseSX-FDX, ");
293 		/*
294 		 * 2.5G support is a software enabled feature
295 		 * on the 5708S and 5709S.
296 		 */
297 		if (bce_sc && (bce_sc->bce_phy_flags &
298 		    BCE_PHY_2_5G_CAPABLE_FLAG)) {
299 			ifmedia_add(&sc->mii_pdata->mii_media,
300 			    IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX,
301 			    sc->mii_inst), 0, NULL);
302 			printf("2500baseSX-FDX, ");
303 		} else if ((bsc->serdes_flags & BRGPHY_5708S) && bce_sc &&
304 		    (detect_hs21(bce_sc) != 0)) {
305 			/*
306 			 * There appears to be certain silicon revision
307 			 * in IBM HS21 blades that is having issues with
308 			 * this driver wating for the auto-negotiation to
309 			 * complete. This happens with a specific chip id
310 			 * only and when the 1000baseSX-FDX is the only
311 			 * mode. Workaround this issue since it's unlikely
312 			 * to be ever addressed.
313 			 */
314 			printf("auto-neg workaround, ");
315 			bsc->serdes_flags |= BRGPHY_NOANWAIT;
316 		}
317 		ifmedia_add(&sc->mii_pdata->mii_media, IFM_MAKEWORD(IFM_ETHER,
318 		    IFM_AUTO, 0, sc->mii_inst), 0, NULL);
319 		printf("auto\n");
320 	}
321 
322 	MIIBUS_MEDIAINIT(sc->mii_dev);
323 	return (0);
324 }
325 
326 static int
327 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
328 {
329 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
330 	int val;
331 
332 	switch (cmd) {
333 	case MII_POLLSTAT:
334 		break;
335 	case MII_MEDIACHG:
336 		/* Todo: Why is this here?  Is it really needed? */
337 		PHY_RESET(sc);	/* XXX hardware bug work-around */
338 
339 		switch (IFM_SUBTYPE(ife->ifm_media)) {
340 		case IFM_AUTO:
341 			brgphy_mii_phy_auto(sc, ife->ifm_media);
342 			break;
343 		case IFM_2500_SX:
344 		case IFM_1000_SX:
345 		case IFM_1000_T:
346 		case IFM_100_TX:
347 		case IFM_10_T:
348 			brgphy_setmedia(sc, ife->ifm_media);
349 			break;
350 		default:
351 			return (EINVAL);
352 		}
353 		break;
354 	case MII_TICK:
355 		/* Bail if autoneg isn't in process. */
356 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
357 			sc->mii_ticks = 0;
358 			break;
359 		}
360 
361 		/*
362 		 * Check to see if we have link.  If we do, we don't
363 		 * need to restart the autonegotiation process.
364 		 */
365 		val = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
366 		if (val & BMSR_LINK) {
367 			sc->mii_ticks = 0;	/* Reset autoneg timer. */
368 			break;
369 		}
370 
371 		/* Announce link loss right after it happens. */
372 		if (sc->mii_ticks++ == 0)
373 			break;
374 
375 		/* Only retry autonegotiation every mii_anegticks seconds. */
376 		if (sc->mii_ticks <= sc->mii_anegticks)
377 			break;
378 
379 
380 		/* Retry autonegotiation */
381 		sc->mii_ticks = 0;
382 		brgphy_mii_phy_auto(sc, ife->ifm_media);
383 		break;
384 	}
385 
386 	/* Update the media status. */
387 	PHY_STATUS(sc);
388 
389 	/*
390 	 * Callback if something changed. Note that we need to poke
391 	 * the DSP on the Broadcom PHYs if the media changes.
392 	 */
393 	if (sc->mii_media_active != mii->mii_media_active ||
394 	    sc->mii_media_status != mii->mii_media_status ||
395 	    cmd == MII_MEDIACHG) {
396 		switch (sc->mii_mpd_oui) {
397 		case MII_OUI_BROADCOM:
398 			switch (sc->mii_mpd_model) {
399 			case MII_MODEL_BROADCOM_BCM5400:
400 				bcm5401_load_dspcode(sc);
401 				break;
402 			case MII_MODEL_BROADCOM_BCM5401:
403 				if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
404 					bcm5401_load_dspcode(sc);
405 				break;
406 			case MII_MODEL_BROADCOM_BCM5411:
407 				bcm5411_load_dspcode(sc);
408 				break;
409 			case MII_MODEL_BROADCOM_BCM54K2:
410 				bcm54k2_load_dspcode(sc);
411 				break;
412 			}
413 			break;
414 		}
415 	}
416 	mii_phy_update(sc, cmd);
417 	return (0);
418 }
419 
420 /****************************************************************************/
421 /* Sets the PHY link speed.                                                 */
422 /*                                                                          */
423 /* Returns:                                                                 */
424 /*   None                                                                   */
425 /****************************************************************************/
426 static void
427 brgphy_setmedia(struct mii_softc *sc, int media)
428 {
429 	int bmcr = 0, gig;
430 
431 	switch (IFM_SUBTYPE(media)) {
432 	case IFM_2500_SX:
433 		break;
434 	case IFM_1000_SX:
435 	case IFM_1000_T:
436 		bmcr = BRGPHY_S1000;
437 		break;
438 	case IFM_100_TX:
439 		bmcr = BRGPHY_S100;
440 		break;
441 	case IFM_10_T:
442 	default:
443 		bmcr = BRGPHY_S10;
444 		break;
445 	}
446 
447 	if ((media & IFM_FDX) != 0) {
448 		bmcr |= BRGPHY_BMCR_FDX;
449 		gig = BRGPHY_1000CTL_AFD;
450 	} else {
451 		gig = BRGPHY_1000CTL_AHD;
452 	}
453 
454 	/* Force loopback to disconnect PHY from Ethernet medium. */
455 	brgphy_enable_loopback(sc);
456 
457 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
458 	PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
459 
460 	if (IFM_SUBTYPE(media) != IFM_1000_T &&
461 	    IFM_SUBTYPE(media) != IFM_1000_SX) {
462 		PHY_WRITE(sc, BRGPHY_MII_BMCR, bmcr);
463 		return;
464 	}
465 
466 	if (IFM_SUBTYPE(media) == IFM_1000_T) {
467 		gig |= BRGPHY_1000CTL_MSE;
468 		if ((media & IFM_ETH_MASTER) != 0)
469 			gig |= BRGPHY_1000CTL_MSC;
470 	}
471 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
472 	PHY_WRITE(sc, BRGPHY_MII_BMCR,
473 	    bmcr | BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
474 }
475 
476 /****************************************************************************/
477 /* Set the media status based on the PHY settings.                          */
478 /*                                                                          */
479 /* Returns:                                                                 */
480 /*   None                                                                   */
481 /****************************************************************************/
482 static void
483 brgphy_status(struct mii_softc *sc)
484 {
485 	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
486 	struct mii_data *mii = sc->mii_pdata;
487 	int aux, bmcr, bmsr, val, xstat;
488 	u_int flowstat;
489 
490 	mii->mii_media_status = IFM_AVALID;
491 	mii->mii_media_active = IFM_ETHER;
492 
493 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR) | PHY_READ(sc, BRGPHY_MII_BMSR);
494 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
495 
496 	if (bmcr & BRGPHY_BMCR_LOOP) {
497 		mii->mii_media_active |= IFM_LOOP;
498 	}
499 
500 	if ((bmcr & BRGPHY_BMCR_AUTOEN) &&
501 	    (bmsr & BRGPHY_BMSR_ACOMP) == 0 &&
502 	    (bsc->serdes_flags & BRGPHY_NOANWAIT) == 0) {
503 		/* Erg, still trying, I guess... */
504 		mii->mii_media_active |= IFM_NONE;
505 		return;
506 	}
507 
508 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
509 		/*
510 		 * NB: reading the ANAR, ANLPAR or 1000STS after the AUXSTS
511 		 * wedges at least the PHY of BCM5704 (but not others).
512 		 */
513 		flowstat = mii_phy_flowstatus(sc);
514 		xstat = PHY_READ(sc, BRGPHY_MII_1000STS);
515 		aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
516 
517 		/* If copper link is up, get the negotiated speed/duplex. */
518 		if (aux & BRGPHY_AUXSTS_LINK) {
519 			mii->mii_media_status |= IFM_ACTIVE;
520 			switch (aux & BRGPHY_AUXSTS_AN_RES) {
521 			case BRGPHY_RES_1000FD:
522 				mii->mii_media_active |= IFM_1000_T | IFM_FDX; 	break;
523 			case BRGPHY_RES_1000HD:
524 				mii->mii_media_active |= IFM_1000_T | IFM_HDX; 	break;
525 			case BRGPHY_RES_100FD:
526 				mii->mii_media_active |= IFM_100_TX | IFM_FDX; break;
527 			case BRGPHY_RES_100T4:
528 				mii->mii_media_active |= IFM_100_T4; break;
529 			case BRGPHY_RES_100HD:
530 				mii->mii_media_active |= IFM_100_TX | IFM_HDX; 	break;
531 			case BRGPHY_RES_10FD:
532 				mii->mii_media_active |= IFM_10_T | IFM_FDX; break;
533 			case BRGPHY_RES_10HD:
534 				mii->mii_media_active |= IFM_10_T | IFM_HDX; break;
535 			default:
536 				mii->mii_media_active |= IFM_NONE; break;
537 			}
538 
539 			if ((mii->mii_media_active & IFM_FDX) != 0)
540 				mii->mii_media_active |= flowstat;
541 
542 			if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T &&
543 			    (xstat & BRGPHY_1000STS_MSR) != 0)
544 				mii->mii_media_active |= IFM_ETH_MASTER;
545 		}
546 	} else {
547 		/* Todo: Add support for flow control. */
548 		/* If serdes link is up, get the negotiated speed/duplex. */
549 		if (bmsr & BRGPHY_BMSR_LINK) {
550 			mii->mii_media_status |= IFM_ACTIVE;
551 		}
552 
553 		/* Check the link speed/duplex based on the PHY type. */
554 		if (bsc->serdes_flags & BRGPHY_5706S) {
555 			mii->mii_media_active |= IFM_1000_SX;
556 
557 			/* If autoneg enabled, read negotiated duplex settings */
558 			if (bmcr & BRGPHY_BMCR_AUTOEN) {
559 				val = PHY_READ(sc, BRGPHY_SERDES_ANAR) & PHY_READ(sc, BRGPHY_SERDES_ANLPAR);
560 				if (val & BRGPHY_SERDES_ANAR_FDX)
561 					mii->mii_media_active |= IFM_FDX;
562 				else
563 					mii->mii_media_active |= IFM_HDX;
564 			}
565 		} else if (bsc->serdes_flags & BRGPHY_5708S) {
566 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
567 			xstat = PHY_READ(sc, BRGPHY_5708S_PG0_1000X_STAT1);
568 
569 			/* Check for MRBE auto-negotiated speed results. */
570 			switch (xstat & BRGPHY_5708S_PG0_1000X_STAT1_SPEED_MASK) {
571 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_10:
572 				mii->mii_media_active |= IFM_10_FL; break;
573 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_100:
574 				mii->mii_media_active |= IFM_100_FX; break;
575 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_1G:
576 				mii->mii_media_active |= IFM_1000_SX; break;
577 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_25G:
578 				mii->mii_media_active |= IFM_2500_SX; break;
579 			}
580 
581 			/* Check for MRBE auto-negotiated duplex results. */
582 			if (xstat & BRGPHY_5708S_PG0_1000X_STAT1_FDX)
583 				mii->mii_media_active |= IFM_FDX;
584 			else
585 				mii->mii_media_active |= IFM_HDX;
586 		} else if (bsc->serdes_flags & BRGPHY_5709S) {
587 			/* Select GP Status Block of the AN MMD, get autoneg results. */
588 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_GP_STATUS);
589 			xstat = PHY_READ(sc, BRGPHY_GP_STATUS_TOP_ANEG_STATUS);
590 
591 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
592 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
593 
594 			/* Check for MRBE auto-negotiated speed results. */
595 			switch (xstat & BRGPHY_GP_STATUS_TOP_ANEG_SPEED_MASK) {
596 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_10:
597 					mii->mii_media_active |= IFM_10_FL; break;
598 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_100:
599 					mii->mii_media_active |= IFM_100_FX; break;
600 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_1G:
601 					mii->mii_media_active |= IFM_1000_SX; break;
602 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_25G:
603 					mii->mii_media_active |= IFM_2500_SX; break;
604 			}
605 
606 			/* Check for MRBE auto-negotiated duplex results. */
607 			if (xstat & BRGPHY_GP_STATUS_TOP_ANEG_FDX)
608 				mii->mii_media_active |= IFM_FDX;
609 			else
610 				mii->mii_media_active |= IFM_HDX;
611 		}
612 	}
613 }
614 
615 static void
616 brgphy_mii_phy_auto(struct mii_softc *sc, int media)
617 {
618 	int anar, ktcr = 0;
619 
620 	PHY_RESET(sc);
621 
622 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
623 		anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
624 		if ((media & IFM_FLOW) != 0 ||
625 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
626 			anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP;
627 		PHY_WRITE(sc, BRGPHY_MII_ANAR, anar);
628 		ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
629 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5701)
630 			ktcr |= BRGPHY_1000CTL_MSE | BRGPHY_1000CTL_MSC;
631 		PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
632 		PHY_READ(sc, BRGPHY_MII_1000CTL);
633 	} else {
634 		anar = BRGPHY_SERDES_ANAR_FDX | BRGPHY_SERDES_ANAR_HDX;
635 		if ((media & IFM_FLOW) != 0 ||
636 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
637 			anar |= BRGPHY_SERDES_ANAR_BOTH_PAUSE;
638 		PHY_WRITE(sc, BRGPHY_SERDES_ANAR, anar);
639 	}
640 
641 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN |
642 	    BRGPHY_BMCR_STARTNEG);
643 	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
644 }
645 
646 /* Enable loopback to force the link down. */
647 static void
648 brgphy_enable_loopback(struct mii_softc *sc)
649 {
650 	int i;
651 
652 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
653 	for (i = 0; i < 15000; i++) {
654 		if (!(PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_LINK))
655 			break;
656 		DELAY(10);
657 	}
658 }
659 
660 /* Turn off tap power management on 5401. */
661 static void
662 bcm5401_load_dspcode(struct mii_softc *sc)
663 {
664 	static const struct {
665 		int		reg;
666 		uint16_t	val;
667 	} dspcode[] = {
668 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
669 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
670 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
671 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
672 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
673 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
674 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
675 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
676 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
677 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
678 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
679 		{ 0,				0 },
680 	};
681 	int i;
682 
683 	for (i = 0; dspcode[i].reg != 0; i++)
684 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
685 	DELAY(40);
686 }
687 
688 static void
689 bcm5411_load_dspcode(struct mii_softc *sc)
690 {
691 	static const struct {
692 		int		reg;
693 		uint16_t	val;
694 	} dspcode[] = {
695 		{ 0x1c,				0x8c23 },
696 		{ 0x1c,				0x8ca3 },
697 		{ 0x1c,				0x8c23 },
698 		{ 0,				0 },
699 	};
700 	int i;
701 
702 	for (i = 0; dspcode[i].reg != 0; i++)
703 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
704 }
705 
706 void
707 bcm54k2_load_dspcode(struct mii_softc *sc)
708 {
709 	static const struct {
710 		int		reg;
711 		uint16_t	val;
712 	} dspcode[] = {
713 		{ 4,				0x01e1 },
714 		{ 9,				0x0300 },
715 		{ 0,				0 },
716 	};
717 	int i;
718 
719 	for (i = 0; dspcode[i].reg != 0; i++)
720 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
721 
722 }
723 
724 static void
725 brgphy_fixup_5704_a0_bug(struct mii_softc *sc)
726 {
727 	static const struct {
728 		int		reg;
729 		uint16_t	val;
730 	} dspcode[] = {
731 		{ 0x1c,				0x8d68 },
732 		{ 0x1c,				0x8d68 },
733 		{ 0,				0 },
734 	};
735 	int i;
736 
737 	for (i = 0; dspcode[i].reg != 0; i++)
738 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
739 }
740 
741 static void
742 brgphy_fixup_adc_bug(struct mii_softc *sc)
743 {
744 	static const struct {
745 		int		reg;
746 		uint16_t	val;
747 	} dspcode[] = {
748 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
749 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
750 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
751 		{ 0,				0 },
752 	};
753 	int i;
754 
755 	for (i = 0; dspcode[i].reg != 0; i++)
756 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
757 }
758 
759 static void
760 brgphy_fixup_adjust_trim(struct mii_softc *sc)
761 {
762 	static const struct {
763 		int		reg;
764 		uint16_t	val;
765 	} dspcode[] = {
766 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
767 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
768 		{ BRGPHY_MII_DSP_RW_PORT,	0x110b },
769 		{ BRGPHY_MII_TEST1,			0x0014 },
770 		{ BRGPHY_MII_AUXCTL,		0x0400 },
771 		{ 0,				0 },
772 	};
773 	int i;
774 
775 	for (i = 0; dspcode[i].reg != 0; i++)
776 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
777 }
778 
779 static void
780 brgphy_fixup_ber_bug(struct mii_softc *sc)
781 {
782 	static const struct {
783 		int		reg;
784 		uint16_t	val;
785 	} dspcode[] = {
786 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
787 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
788 		{ BRGPHY_MII_DSP_RW_PORT,	0x310b },
789 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
790 		{ BRGPHY_MII_DSP_RW_PORT,	0x9506 },
791 		{ BRGPHY_MII_DSP_ADDR_REG,	0x401f },
792 		{ BRGPHY_MII_DSP_RW_PORT,	0x14e2 },
793 		{ BRGPHY_MII_AUXCTL,		0x0400 },
794 		{ 0,				0 },
795 	};
796 	int i;
797 
798 	for (i = 0; dspcode[i].reg != 0; i++)
799 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
800 }
801 
802 static void
803 brgphy_fixup_crc_bug(struct mii_softc *sc)
804 {
805 	static const struct {
806 		int		reg;
807 		uint16_t	val;
808 	} dspcode[] = {
809 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a75 },
810 		{ 0x1c,				0x8c68 },
811 		{ 0x1c,				0x8d68 },
812 		{ 0x1c,				0x8c68 },
813 		{ 0,				0 },
814 	};
815 	int i;
816 
817 	for (i = 0; dspcode[i].reg != 0; i++)
818 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
819 }
820 
821 static void
822 brgphy_fixup_jitter_bug(struct mii_softc *sc)
823 {
824 	static const struct {
825 		int		reg;
826 		uint16_t	val;
827 	} dspcode[] = {
828 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
829 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
830 		{ BRGPHY_MII_DSP_RW_PORT,	0x010b },
831 		{ BRGPHY_MII_AUXCTL,		0x0400 },
832 		{ 0,				0 },
833 	};
834 	int i;
835 
836 	for (i = 0; dspcode[i].reg != 0; i++)
837 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
838 }
839 
840 static void
841 brgphy_fixup_disable_early_dac(struct mii_softc *sc)
842 {
843 	uint32_t val;
844 
845 	PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x0f08);
846 	val = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
847 	val &= ~(1 << 8);
848 	PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, val);
849 
850 }
851 
852 static void
853 brgphy_ethernet_wirespeed(struct mii_softc *sc)
854 {
855 	uint32_t	val;
856 
857 	/* Enable Ethernet@WireSpeed. */
858 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
859 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
860 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
861 }
862 
863 static void
864 brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
865 {
866 	uint32_t	val;
867 
868 	/* Set or clear jumbo frame settings in the PHY. */
869 	if (mtu > ETHER_MAX_LEN) {
870 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5401) {
871 			/* BCM5401 PHY cannot read-modify-write. */
872 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
873 		} else {
874 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
875 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
876 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
877 			    val | BRGPHY_AUXCTL_LONG_PKT);
878 		}
879 
880 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
881 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
882 		    val | BRGPHY_PHY_EXTCTL_HIGH_LA);
883 	} else {
884 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
885 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
886 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
887 		    val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
888 
889 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
890 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
891 			val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
892 	}
893 }
894 
895 static void
896 brgphy_reset(struct mii_softc *sc)
897 {
898 	struct bge_softc *bge_sc = NULL;
899 	struct bce_softc *bce_sc = NULL;
900 	if_t ifp;
901 	int i, val;
902 
903 	/*
904 	 * Perform a reset.  Note that at least some Broadcom PHYs default to
905 	 * being powered down as well as isolated after a reset but don't work
906 	 * if one or both of these bits are cleared.  However, they just work
907 	 * fine if both bits remain set, so we don't use mii_phy_reset() here.
908 	 */
909 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET);
910 
911 	/* Wait 100ms for it to complete. */
912 	for (i = 0; i < 100; i++) {
913 		if ((PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_RESET) == 0)
914 			break;
915 		DELAY(1000);
916 	}
917 
918 	/* Handle any PHY specific procedures following the reset. */
919 	switch (sc->mii_mpd_oui) {
920 	case MII_OUI_BROADCOM:
921 		switch (sc->mii_mpd_model) {
922 		case MII_MODEL_BROADCOM_BCM5400:
923 			bcm5401_load_dspcode(sc);
924 			break;
925 		case MII_MODEL_BROADCOM_BCM5401:
926 			if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
927 				bcm5401_load_dspcode(sc);
928 			break;
929 		case MII_MODEL_BROADCOM_BCM5411:
930 			bcm5411_load_dspcode(sc);
931 			break;
932 		case MII_MODEL_BROADCOM_BCM54K2:
933 			bcm54k2_load_dspcode(sc);
934 			break;
935 		}
936 		break;
937 	case MII_OUI_BROADCOM3:
938 		switch (sc->mii_mpd_model) {
939 		case MII_MODEL_BROADCOM3_BCM5717C:
940 		case MII_MODEL_BROADCOM3_BCM5719C:
941 		case MII_MODEL_BROADCOM3_BCM5720C:
942 		case MII_MODEL_BROADCOM3_BCM57765:
943 			return;
944 		}
945 		break;
946 	case MII_OUI_BROADCOM4:
947 		return;
948 	}
949 
950 	ifp = sc->mii_pdata->mii_ifp;
951 
952 	/* Find the driver associated with this PHY. */
953 	if (mii_phy_mac_match(sc, "bge"))
954 		bge_sc = mii_phy_mac_softc(sc);
955 	else if (mii_phy_mac_match(sc, "bce"))
956 		bce_sc = mii_phy_mac_softc(sc);
957 
958 	if (bge_sc) {
959 		/* Fix up various bugs */
960 		if (bge_sc->bge_phy_flags & BGE_PHY_5704_A0_BUG)
961 			brgphy_fixup_5704_a0_bug(sc);
962 		if (bge_sc->bge_phy_flags & BGE_PHY_ADC_BUG)
963 			brgphy_fixup_adc_bug(sc);
964 		if (bge_sc->bge_phy_flags & BGE_PHY_ADJUST_TRIM)
965 			brgphy_fixup_adjust_trim(sc);
966 		if (bge_sc->bge_phy_flags & BGE_PHY_BER_BUG)
967 			brgphy_fixup_ber_bug(sc);
968 		if (bge_sc->bge_phy_flags & BGE_PHY_CRC_BUG)
969 			brgphy_fixup_crc_bug(sc);
970 		if (bge_sc->bge_phy_flags & BGE_PHY_JITTER_BUG)
971 			brgphy_fixup_jitter_bug(sc);
972 
973 		if (bge_sc->bge_flags & BGE_FLAG_JUMBO)
974 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
975 
976 		if ((bge_sc->bge_phy_flags & BGE_PHY_NO_WIRESPEED) == 0)
977 			brgphy_ethernet_wirespeed(sc);
978 
979 		/* Enable Link LED on Dell boxes */
980 		if (bge_sc->bge_phy_flags & BGE_PHY_NO_3LED) {
981 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
982 			    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) &
983 			    ~BRGPHY_PHY_EXTCTL_3_LED);
984 		}
985 
986 		/* Adjust output voltage (From Linux driver) */
987 		if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5906)
988 			PHY_WRITE(sc, BRGPHY_MII_EPHY_PTEST, 0x12);
989 	} else if (bce_sc) {
990 		if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5708 &&
991 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
992 
993 			/* Store autoneg capabilities/results in digital block (Page 0) */
994 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG3_PG2);
995 			PHY_WRITE(sc, BRGPHY_5708S_PG2_DIGCTL_3_0,
996 				BRGPHY_5708S_PG2_DIGCTL_3_0_USE_IEEE);
997 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
998 
999 			/* Enable fiber mode and autodetection */
1000 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL1,
1001 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL1) |
1002 				BRGPHY_5708S_PG0_1000X_CTL1_AUTODET_EN |
1003 				BRGPHY_5708S_PG0_1000X_CTL1_FIBER_MODE);
1004 
1005 			/* Enable parallel detection */
1006 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL2,
1007 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL2) |
1008 				BRGPHY_5708S_PG0_1000X_CTL2_PAR_DET_EN);
1009 
1010 			/* Advertise 2.5G support through next page during autoneg */
1011 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1012 				PHY_WRITE(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1,
1013 					PHY_READ(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1) |
1014 					BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G);
1015 
1016 			/* Increase TX signal amplitude */
1017 			if ((BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_A0) ||
1018 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B0) ||
1019 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B1)) {
1020 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1021 					BRGPHY_5708S_TX_MISC_PG5);
1022 				PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL1,
1023 					PHY_READ(sc, BRGPHY_5708S_PG5_TXACTL1) & ~0x30);
1024 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1025 					BRGPHY_5708S_DIG_PG0);
1026 			}
1027 
1028 			/* Backplanes use special driver/pre-driver/pre-emphasis values. */
1029 			if ((bce_sc->bce_shared_hw_cfg & BCE_SHARED_HW_CFG_PHY_BACKPLANE) &&
1030 				(bce_sc->bce_port_hw_cfg & BCE_PORT_HW_CFG_CFG_TXCTL3_MASK)) {
1031 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1032 						BRGPHY_5708S_TX_MISC_PG5);
1033 					PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL3,
1034 						bce_sc->bce_port_hw_cfg &
1035 						BCE_PORT_HW_CFG_CFG_TXCTL3_MASK);
1036 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1037 						BRGPHY_5708S_DIG_PG0);
1038 			}
1039 		} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709 &&
1040 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1041 
1042 			/* Select the SerDes Digital block of the AN MMD. */
1043 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_SERDES_DIG);
1044 			val = PHY_READ(sc, BRGPHY_SERDES_DIG_1000X_CTL1);
1045 			val &= ~BRGPHY_SD_DIG_1000X_CTL1_AUTODET;
1046 			val |= BRGPHY_SD_DIG_1000X_CTL1_FIBER;
1047 			PHY_WRITE(sc, BRGPHY_SERDES_DIG_1000X_CTL1, val);
1048 
1049 			/* Select the Over 1G block of the AN MMD. */
1050 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_OVER_1G);
1051 
1052 			/* Enable autoneg "Next Page" to advertise 2.5G support. */
1053 			val = PHY_READ(sc, BRGPHY_OVER_1G_UNFORMAT_PG1);
1054 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1055 				val |= BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1056 			else
1057 				val &= ~BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1058 			PHY_WRITE(sc, BRGPHY_OVER_1G_UNFORMAT_PG1, val);
1059 
1060 			/* Select the Multi-Rate Backplane Ethernet block of the AN MMD. */
1061 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_MRBE);
1062 
1063 			/* Enable MRBE speed autoneg. */
1064 			val = PHY_READ(sc, BRGPHY_MRBE_MSG_PG5_NP);
1065 			val |= BRGPHY_MRBE_MSG_PG5_NP_MBRE |
1066 			    BRGPHY_MRBE_MSG_PG5_NP_T2;
1067 			PHY_WRITE(sc, BRGPHY_MRBE_MSG_PG5_NP, val);
1068 
1069 			/* Select the Clause 73 User B0 block of the AN MMD. */
1070 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_CL73_USER_B0);
1071 
1072 			/* Enable MRBE speed autoneg. */
1073 			PHY_WRITE(sc, BRGPHY_CL73_USER_B0_MBRE_CTL1,
1074 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_NP_AFT_BP |
1075 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_STA_MGR |
1076 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_ANEG);
1077 
1078 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
1079 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
1080         } else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709) {
1081 			if ((BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Ax) ||
1082 				(BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Bx))
1083 				brgphy_fixup_disable_early_dac(sc);
1084 
1085 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1086 			brgphy_ethernet_wirespeed(sc);
1087 		} else {
1088 			brgphy_fixup_ber_bug(sc);
1089 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1090 			brgphy_ethernet_wirespeed(sc);
1091 		}
1092 	}
1093 }
1094