xref: /freebsd/sys/dev/mii/brgphy.c (revision 10b59a9b4add0320d52c15ce057dd697261e7dfc)
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 
47 #include <net/if.h>
48 #include <net/ethernet.h>
49 #include <net/if_media.h>
50 
51 #include <dev/mii/mii.h>
52 #include <dev/mii/miivar.h>
53 #include "miidevs.h"
54 
55 #include <dev/mii/brgphyreg.h>
56 #include <net/if_arp.h>
57 #include <machine/bus.h>
58 #include <dev/bge/if_bgereg.h>
59 #include <dev/bce/if_bcereg.h>
60 
61 #include <dev/pci/pcireg.h>
62 #include <dev/pci/pcivar.h>
63 
64 #include "miibus_if.h"
65 
66 static int brgphy_probe(device_t);
67 static int brgphy_attach(device_t);
68 
69 struct brgphy_softc {
70 	struct mii_softc mii_sc;
71 	int serdes_flags;	/* Keeps track of the serdes type used */
72 #define BRGPHY_5706S		0x0001
73 #define BRGPHY_5708S		0x0002
74 #define BRGPHY_NOANWAIT		0x0004
75 #define BRGPHY_5709S		0x0008
76 	int bce_phy_flags;	/* PHY flags transferred from the MAC driver */
77 };
78 
79 static device_method_t brgphy_methods[] = {
80 	/* device interface */
81 	DEVMETHOD(device_probe,		brgphy_probe),
82 	DEVMETHOD(device_attach,	brgphy_attach),
83 	DEVMETHOD(device_detach,	mii_phy_detach),
84 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
85 	{ 0, 0 }
86 };
87 
88 static devclass_t brgphy_devclass;
89 
90 static driver_t brgphy_driver = {
91 	"brgphy",
92 	brgphy_methods,
93 	sizeof(struct brgphy_softc)
94 };
95 
96 DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
97 
98 static int	brgphy_service(struct mii_softc *, struct mii_data *, int);
99 static void	brgphy_setmedia(struct mii_softc *, int);
100 static void	brgphy_status(struct mii_softc *);
101 static void	brgphy_mii_phy_auto(struct mii_softc *, int);
102 static void	brgphy_reset(struct mii_softc *);
103 static void	brgphy_enable_loopback(struct mii_softc *);
104 static void	bcm5401_load_dspcode(struct mii_softc *);
105 static void	bcm5411_load_dspcode(struct mii_softc *);
106 static void	bcm54k2_load_dspcode(struct mii_softc *);
107 static void	brgphy_fixup_5704_a0_bug(struct mii_softc *);
108 static void	brgphy_fixup_adc_bug(struct mii_softc *);
109 static void	brgphy_fixup_adjust_trim(struct mii_softc *);
110 static void	brgphy_fixup_ber_bug(struct mii_softc *);
111 static void	brgphy_fixup_crc_bug(struct mii_softc *);
112 static void	brgphy_fixup_jitter_bug(struct mii_softc *);
113 static void	brgphy_ethernet_wirespeed(struct mii_softc *);
114 static void	brgphy_jumbo_settings(struct mii_softc *, u_long);
115 
116 static const struct mii_phydesc brgphys[] = {
117 	MII_PHY_DESC(BROADCOM, BCM5400),
118 	MII_PHY_DESC(BROADCOM, BCM5401),
119 	MII_PHY_DESC(BROADCOM, BCM5411),
120 	MII_PHY_DESC(BROADCOM, BCM54K2),
121 	MII_PHY_DESC(BROADCOM, BCM5701),
122 	MII_PHY_DESC(BROADCOM, BCM5703),
123 	MII_PHY_DESC(BROADCOM, BCM5704),
124 	MII_PHY_DESC(BROADCOM, BCM5705),
125 	MII_PHY_DESC(BROADCOM, BCM5706),
126 	MII_PHY_DESC(BROADCOM, BCM5714),
127 	MII_PHY_DESC(BROADCOM, BCM5421),
128 	MII_PHY_DESC(BROADCOM, BCM5750),
129 	MII_PHY_DESC(BROADCOM, BCM5752),
130 	MII_PHY_DESC(BROADCOM, BCM5780),
131 	MII_PHY_DESC(BROADCOM, BCM5708C),
132 	MII_PHY_DESC(BROADCOM2, BCM5482),
133 	MII_PHY_DESC(BROADCOM2, BCM5708S),
134 	MII_PHY_DESC(BROADCOM2, BCM5709C),
135 	MII_PHY_DESC(BROADCOM2, BCM5709S),
136 	MII_PHY_DESC(BROADCOM2, BCM5709CAX),
137 	MII_PHY_DESC(BROADCOM2, BCM5722),
138 	MII_PHY_DESC(BROADCOM2, BCM5755),
139 	MII_PHY_DESC(BROADCOM2, BCM5754),
140 	MII_PHY_DESC(BROADCOM2, BCM5761),
141 	MII_PHY_DESC(BROADCOM2, BCM5784),
142 	MII_PHY_DESC(BROADCOM3, BCM5717C),
143 	MII_PHY_DESC(BROADCOM3, BCM5719C),
144 	MII_PHY_DESC(BROADCOM3, BCM5720C),
145 	MII_PHY_DESC(BROADCOM3, BCM57765),
146 	MII_PHY_DESC(xxBROADCOM_ALT1, BCM5906),
147 	MII_PHY_END
148 };
149 
150 static const struct mii_phy_funcs brgphy_funcs = {
151 	brgphy_service,
152 	brgphy_status,
153 	brgphy_reset
154 };
155 
156 #define HS21_PRODUCT_ID	"IBM eServer BladeCenter HS21"
157 #define HS21_BCM_CHIPID	0x57081021
158 
159 static int
160 detect_hs21(struct bce_softc *bce_sc)
161 {
162 	char *sysenv;
163 	int found;
164 
165 	found = 0;
166 	if (bce_sc->bce_chipid == HS21_BCM_CHIPID) {
167 		sysenv = getenv("smbios.system.product");
168 		if (sysenv != NULL) {
169 			if (strncmp(sysenv, HS21_PRODUCT_ID,
170 			    strlen(HS21_PRODUCT_ID)) == 0)
171 				found = 1;
172 			freeenv(sysenv);
173 		}
174 	}
175 	return (found);
176 }
177 
178 /* Search for our PHY in the list of known PHYs */
179 static int
180 brgphy_probe(device_t dev)
181 {
182 
183 	return (mii_phy_dev_probe(dev, brgphys, BUS_PROBE_DEFAULT));
184 }
185 
186 /* Attach the PHY to the MII bus */
187 static int
188 brgphy_attach(device_t dev)
189 {
190 	struct brgphy_softc *bsc;
191 	struct bge_softc *bge_sc = NULL;
192 	struct bce_softc *bce_sc = NULL;
193 	struct mii_softc *sc;
194 	struct ifnet *ifp;
195 
196 	bsc = device_get_softc(dev);
197 	sc = &bsc->mii_sc;
198 
199 	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
200 	    &brgphy_funcs, 0);
201 
202 	bsc->serdes_flags = 0;
203 
204 	/* Handle any special cases based on the PHY ID */
205 	switch (sc->mii_mpd_oui) {
206 	case MII_OUI_BROADCOM:
207 		switch (sc->mii_mpd_model) {
208 		case MII_MODEL_BROADCOM_BCM5706:
209 		case MII_MODEL_BROADCOM_BCM5714:
210 			/*
211 			 * The 5464 PHY used in the 5706 supports both copper
212 			 * and fiber interfaces over GMII.  Need to check the
213 			 * shadow registers to see which mode is actually
214 			 * in effect, and therefore whether we have 5706C or
215 			 * 5706S.
216 			 */
217 			PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
218 				BRGPHY_SHADOW_1C_MODE_CTRL);
219 			if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
220 				BRGPHY_SHADOW_1C_ENA_1000X) {
221 				bsc->serdes_flags |= BRGPHY_5706S;
222 				sc->mii_flags |= MIIF_HAVEFIBER;
223 			}
224 			break;
225 		} break;
226 	case MII_OUI_BROADCOM2:
227 		switch (sc->mii_mpd_model) {
228 		case MII_MODEL_BROADCOM2_BCM5708S:
229 			bsc->serdes_flags |= BRGPHY_5708S;
230 			sc->mii_flags |= MIIF_HAVEFIBER;
231 			break;
232 		case MII_MODEL_BROADCOM2_BCM5709S:
233 			bsc->serdes_flags |= BRGPHY_5709S;
234 			sc->mii_flags |= MIIF_HAVEFIBER;
235 			break;
236 		}
237 		break;
238 	}
239 
240 	ifp = sc->mii_pdata->mii_ifp;
241 
242 	/* Find the MAC driver associated with this PHY. */
243 	if (strcmp(ifp->if_dname, "bge") == 0)	{
244 		bge_sc = ifp->if_softc;
245 	} else if (strcmp(ifp->if_dname, "bce") == 0) {
246 		bce_sc = ifp->if_softc;
247 	}
248 
249 	PHY_RESET(sc);
250 
251 	/* Read the PHY's capabilities. */
252 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
253 	if (sc->mii_capabilities & BMSR_EXTSTAT)
254 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
255 	device_printf(dev, " ");
256 
257 #define	ADD(m, c)	ifmedia_add(&sc->mii_pdata->mii_media, (m), (c), NULL)
258 
259 	/* Add the supported media types */
260 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
261 		mii_phy_add_media(sc);
262 		printf("\n");
263 	} else {
264 		sc->mii_anegticks = MII_ANEGTICKS_GIGE;
265 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
266 			BRGPHY_S1000 | BRGPHY_BMCR_FDX);
267 		printf("1000baseSX-FDX, ");
268 		/* 2.5G support is a software enabled feature on the 5708S and 5709S. */
269 		if (bce_sc && (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)) {
270 			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX, sc->mii_inst), 0);
271 			printf("2500baseSX-FDX, ");
272 		} else if ((bsc->serdes_flags & BRGPHY_5708S) && bce_sc &&
273 		    (detect_hs21(bce_sc) != 0)) {
274 			/*
275 			 * There appears to be certain silicon revision
276 			 * in IBM HS21 blades that is having issues with
277 			 * this driver wating for the auto-negotiation to
278 			 * complete. This happens with a specific chip id
279 			 * only and when the 1000baseSX-FDX is the only
280 			 * mode. Workaround this issue since it's unlikely
281 			 * to be ever addressed.
282 			 */
283 			printf("auto-neg workaround, ");
284 			bsc->serdes_flags |= BRGPHY_NOANWAIT;
285 		}
286 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
287 		printf("auto\n");
288 	}
289 
290 #undef ADD
291 	MIIBUS_MEDIAINIT(sc->mii_dev);
292 	return (0);
293 }
294 
295 static int
296 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
297 {
298 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
299 	int val;
300 
301 	switch (cmd) {
302 	case MII_POLLSTAT:
303 		break;
304 	case MII_MEDIACHG:
305 		/* If the interface is not up, don't do anything. */
306 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
307 			break;
308 
309 		/* Todo: Why is this here?  Is it really needed? */
310 		PHY_RESET(sc);	/* XXX hardware bug work-around */
311 
312 		switch (IFM_SUBTYPE(ife->ifm_media)) {
313 		case IFM_AUTO:
314 			brgphy_mii_phy_auto(sc, ife->ifm_media);
315 			break;
316 		case IFM_2500_SX:
317 		case IFM_1000_SX:
318 		case IFM_1000_T:
319 		case IFM_100_TX:
320 		case IFM_10_T:
321 			brgphy_setmedia(sc, ife->ifm_media);
322 			break;
323 		default:
324 			return (EINVAL);
325 		}
326 		break;
327 	case MII_TICK:
328 		/* Bail if the interface isn't up. */
329 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
330 			return (0);
331 
332 
333 		/* Bail if autoneg isn't in process. */
334 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
335 			sc->mii_ticks = 0;
336 			break;
337 		}
338 
339 		/*
340 		 * Check to see if we have link.  If we do, we don't
341 		 * need to restart the autonegotiation process.
342 		 */
343 		val = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
344 		if (val & BMSR_LINK) {
345 			sc->mii_ticks = 0;	/* Reset autoneg timer. */
346 			break;
347 		}
348 
349 		/* Announce link loss right after it happens. */
350 		if (sc->mii_ticks++ == 0)
351 			break;
352 
353 		/* Only retry autonegotiation every mii_anegticks seconds. */
354 		if (sc->mii_ticks <= sc->mii_anegticks)
355 			break;
356 
357 
358 		/* Retry autonegotiation */
359 		sc->mii_ticks = 0;
360 		brgphy_mii_phy_auto(sc, ife->ifm_media);
361 		break;
362 	}
363 
364 	/* Update the media status. */
365 	PHY_STATUS(sc);
366 
367 	/*
368 	 * Callback if something changed. Note that we need to poke
369 	 * the DSP on the Broadcom PHYs if the media changes.
370 	 */
371 	if (sc->mii_media_active != mii->mii_media_active ||
372 	    sc->mii_media_status != mii->mii_media_status ||
373 	    cmd == MII_MEDIACHG) {
374 		switch (sc->mii_mpd_oui) {
375 		case MII_OUI_BROADCOM:
376 			switch (sc->mii_mpd_model) {
377 			case MII_MODEL_BROADCOM_BCM5400:
378 				bcm5401_load_dspcode(sc);
379 				break;
380 			case MII_MODEL_BROADCOM_BCM5401:
381 				if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
382 					bcm5401_load_dspcode(sc);
383 				break;
384 			case MII_MODEL_BROADCOM_BCM5411:
385 				bcm5411_load_dspcode(sc);
386 				break;
387 			case MII_MODEL_BROADCOM_BCM54K2:
388 				bcm54k2_load_dspcode(sc);
389 				break;
390 			}
391 			break;
392 		}
393 	}
394 	mii_phy_update(sc, cmd);
395 	return (0);
396 }
397 
398 /****************************************************************************/
399 /* Sets the PHY link speed.                                                 */
400 /*                                                                          */
401 /* Returns:                                                                 */
402 /*   None                                                                   */
403 /****************************************************************************/
404 static void
405 brgphy_setmedia(struct mii_softc *sc, int media)
406 {
407 	int bmcr = 0, gig;
408 
409 	switch (IFM_SUBTYPE(media)) {
410 	case IFM_2500_SX:
411 		break;
412 	case IFM_1000_SX:
413 	case IFM_1000_T:
414 		bmcr = BRGPHY_S1000;
415 		break;
416 	case IFM_100_TX:
417 		bmcr = BRGPHY_S100;
418 		break;
419 	case IFM_10_T:
420 	default:
421 		bmcr = BRGPHY_S10;
422 		break;
423 	}
424 
425 	if ((media & IFM_FDX) != 0) {
426 		bmcr |= BRGPHY_BMCR_FDX;
427 		gig = BRGPHY_1000CTL_AFD;
428 	} else {
429 		gig = BRGPHY_1000CTL_AHD;
430 	}
431 
432 	/* Force loopback to disconnect PHY from Ethernet medium. */
433 	brgphy_enable_loopback(sc);
434 
435 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
436 	PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
437 
438 	if (IFM_SUBTYPE(media) != IFM_1000_T &&
439 	    IFM_SUBTYPE(media) != IFM_1000_SX) {
440 		PHY_WRITE(sc, BRGPHY_MII_BMCR, bmcr);
441 		return;
442 	}
443 
444 	if (IFM_SUBTYPE(media) == IFM_1000_T) {
445 		gig |= BRGPHY_1000CTL_MSE;
446 		if ((media & IFM_ETH_MASTER) != 0)
447 			gig |= BRGPHY_1000CTL_MSC;
448 	}
449 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
450 	PHY_WRITE(sc, BRGPHY_MII_BMCR,
451 	    bmcr | BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
452 }
453 
454 /****************************************************************************/
455 /* Set the media status based on the PHY settings.                          */
456 /*                                                                          */
457 /* Returns:                                                                 */
458 /*   None                                                                   */
459 /****************************************************************************/
460 static void
461 brgphy_status(struct mii_softc *sc)
462 {
463 	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
464 	struct mii_data *mii = sc->mii_pdata;
465 	int aux, bmcr, bmsr, val, xstat;
466 	u_int flowstat;
467 
468 	mii->mii_media_status = IFM_AVALID;
469 	mii->mii_media_active = IFM_ETHER;
470 
471 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR) | PHY_READ(sc, BRGPHY_MII_BMSR);
472 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
473 
474 	if (bmcr & BRGPHY_BMCR_LOOP) {
475 		mii->mii_media_active |= IFM_LOOP;
476 	}
477 
478 	if ((bmcr & BRGPHY_BMCR_AUTOEN) &&
479 	    (bmsr & BRGPHY_BMSR_ACOMP) == 0 &&
480 	    (bsc->serdes_flags & BRGPHY_NOANWAIT) == 0) {
481 		/* Erg, still trying, I guess... */
482 		mii->mii_media_active |= IFM_NONE;
483 		return;
484 	}
485 
486 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
487 		/*
488 		 * NB: reading the ANAR, ANLPAR or 1000STS after the AUXSTS
489 		 * wedges at least the PHY of BCM5704 (but not others).
490 		 */
491 		flowstat = mii_phy_flowstatus(sc);
492 		xstat = PHY_READ(sc, BRGPHY_MII_1000STS);
493 		aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
494 
495 		/* If copper link is up, get the negotiated speed/duplex. */
496 		if (aux & BRGPHY_AUXSTS_LINK) {
497 			mii->mii_media_status |= IFM_ACTIVE;
498 			switch (aux & BRGPHY_AUXSTS_AN_RES) {
499 			case BRGPHY_RES_1000FD:
500 				mii->mii_media_active |= IFM_1000_T | IFM_FDX; 	break;
501 			case BRGPHY_RES_1000HD:
502 				mii->mii_media_active |= IFM_1000_T | IFM_HDX; 	break;
503 			case BRGPHY_RES_100FD:
504 				mii->mii_media_active |= IFM_100_TX | IFM_FDX; break;
505 			case BRGPHY_RES_100T4:
506 				mii->mii_media_active |= IFM_100_T4; break;
507 			case BRGPHY_RES_100HD:
508 				mii->mii_media_active |= IFM_100_TX | IFM_HDX; 	break;
509 			case BRGPHY_RES_10FD:
510 				mii->mii_media_active |= IFM_10_T | IFM_FDX; break;
511 			case BRGPHY_RES_10HD:
512 				mii->mii_media_active |= IFM_10_T | IFM_HDX; break;
513 			default:
514 				mii->mii_media_active |= IFM_NONE; break;
515 			}
516 
517 			if ((mii->mii_media_active & IFM_FDX) != 0)
518 				mii->mii_media_active |= flowstat;
519 
520 			if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T &&
521 			    (xstat & BRGPHY_1000STS_MSR) != 0)
522 				mii->mii_media_active |= IFM_ETH_MASTER;
523 		}
524 	} else {
525 		/* Todo: Add support for flow control. */
526 		/* If serdes link is up, get the negotiated speed/duplex. */
527 		if (bmsr & BRGPHY_BMSR_LINK) {
528 			mii->mii_media_status |= IFM_ACTIVE;
529 		}
530 
531 		/* Check the link speed/duplex based on the PHY type. */
532 		if (bsc->serdes_flags & BRGPHY_5706S) {
533 			mii->mii_media_active |= IFM_1000_SX;
534 
535 			/* If autoneg enabled, read negotiated duplex settings */
536 			if (bmcr & BRGPHY_BMCR_AUTOEN) {
537 				val = PHY_READ(sc, BRGPHY_SERDES_ANAR) & PHY_READ(sc, BRGPHY_SERDES_ANLPAR);
538 				if (val & BRGPHY_SERDES_ANAR_FDX)
539 					mii->mii_media_active |= IFM_FDX;
540 				else
541 					mii->mii_media_active |= IFM_HDX;
542 			}
543 		} else if (bsc->serdes_flags & BRGPHY_5708S) {
544 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
545 			xstat = PHY_READ(sc, BRGPHY_5708S_PG0_1000X_STAT1);
546 
547 			/* Check for MRBE auto-negotiated speed results. */
548 			switch (xstat & BRGPHY_5708S_PG0_1000X_STAT1_SPEED_MASK) {
549 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_10:
550 				mii->mii_media_active |= IFM_10_FL; break;
551 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_100:
552 				mii->mii_media_active |= IFM_100_FX; break;
553 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_1G:
554 				mii->mii_media_active |= IFM_1000_SX; break;
555 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_25G:
556 				mii->mii_media_active |= IFM_2500_SX; break;
557 			}
558 
559 			/* Check for MRBE auto-negotiated duplex results. */
560 			if (xstat & BRGPHY_5708S_PG0_1000X_STAT1_FDX)
561 				mii->mii_media_active |= IFM_FDX;
562 			else
563 				mii->mii_media_active |= IFM_HDX;
564 		} else if (bsc->serdes_flags & BRGPHY_5709S) {
565 			/* Select GP Status Block of the AN MMD, get autoneg results. */
566 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_GP_STATUS);
567 			xstat = PHY_READ(sc, BRGPHY_GP_STATUS_TOP_ANEG_STATUS);
568 
569 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
570 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
571 
572 			/* Check for MRBE auto-negotiated speed results. */
573 			switch (xstat & BRGPHY_GP_STATUS_TOP_ANEG_SPEED_MASK) {
574 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_10:
575 					mii->mii_media_active |= IFM_10_FL; break;
576 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_100:
577 					mii->mii_media_active |= IFM_100_FX; break;
578 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_1G:
579 					mii->mii_media_active |= IFM_1000_SX; break;
580 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_25G:
581 					mii->mii_media_active |= IFM_2500_SX; break;
582 			}
583 
584 			/* Check for MRBE auto-negotiated duplex results. */
585 			if (xstat & BRGPHY_GP_STATUS_TOP_ANEG_FDX)
586 				mii->mii_media_active |= IFM_FDX;
587 			else
588 				mii->mii_media_active |= IFM_HDX;
589 		}
590 	}
591 }
592 
593 static void
594 brgphy_mii_phy_auto(struct mii_softc *sc, int media)
595 {
596 	int anar, ktcr = 0;
597 
598 	PHY_RESET(sc);
599 
600 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
601 		anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
602 		if ((media & IFM_FLOW) != 0 ||
603 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
604 			anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP;
605 		PHY_WRITE(sc, BRGPHY_MII_ANAR, anar);
606 	} else {
607 		anar = BRGPHY_SERDES_ANAR_FDX | BRGPHY_SERDES_ANAR_HDX;
608 		if ((media & IFM_FLOW) != 0 ||
609 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
610 			anar |= BRGPHY_SERDES_ANAR_BOTH_PAUSE;
611 		PHY_WRITE(sc, BRGPHY_SERDES_ANAR, anar);
612 	}
613 
614 	ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
615 	if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5701)
616 		ktcr |= BRGPHY_1000CTL_MSE | BRGPHY_1000CTL_MSC;
617 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
618 	ktcr = PHY_READ(sc, BRGPHY_MII_1000CTL);
619 
620 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN |
621 	    BRGPHY_BMCR_STARTNEG);
622 	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
623 }
624 
625 /* Enable loopback to force the link down. */
626 static void
627 brgphy_enable_loopback(struct mii_softc *sc)
628 {
629 	int i;
630 
631 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
632 	for (i = 0; i < 15000; i++) {
633 		if (!(PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_LINK))
634 			break;
635 		DELAY(10);
636 	}
637 }
638 
639 /* Turn off tap power management on 5401. */
640 static void
641 bcm5401_load_dspcode(struct mii_softc *sc)
642 {
643 	static const struct {
644 		int		reg;
645 		uint16_t	val;
646 	} dspcode[] = {
647 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
648 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
649 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
650 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
651 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
652 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
653 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
654 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
655 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
656 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
657 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
658 		{ 0,				0 },
659 	};
660 	int i;
661 
662 	for (i = 0; dspcode[i].reg != 0; i++)
663 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
664 	DELAY(40);
665 }
666 
667 static void
668 bcm5411_load_dspcode(struct mii_softc *sc)
669 {
670 	static const struct {
671 		int		reg;
672 		uint16_t	val;
673 	} dspcode[] = {
674 		{ 0x1c,				0x8c23 },
675 		{ 0x1c,				0x8ca3 },
676 		{ 0x1c,				0x8c23 },
677 		{ 0,				0 },
678 	};
679 	int i;
680 
681 	for (i = 0; dspcode[i].reg != 0; i++)
682 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
683 }
684 
685 void
686 bcm54k2_load_dspcode(struct mii_softc *sc)
687 {
688 	static const struct {
689 		int		reg;
690 		uint16_t	val;
691 	} dspcode[] = {
692 		{ 4,				0x01e1 },
693 		{ 9,				0x0300 },
694 		{ 0,				0 },
695 	};
696 	int i;
697 
698 	for (i = 0; dspcode[i].reg != 0; i++)
699 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
700 
701 }
702 
703 static void
704 brgphy_fixup_5704_a0_bug(struct mii_softc *sc)
705 {
706 	static const struct {
707 		int		reg;
708 		uint16_t	val;
709 	} dspcode[] = {
710 		{ 0x1c,				0x8d68 },
711 		{ 0x1c,				0x8d68 },
712 		{ 0,				0 },
713 	};
714 	int i;
715 
716 	for (i = 0; dspcode[i].reg != 0; i++)
717 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
718 }
719 
720 static void
721 brgphy_fixup_adc_bug(struct mii_softc *sc)
722 {
723 	static const struct {
724 		int		reg;
725 		uint16_t	val;
726 	} dspcode[] = {
727 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
728 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
729 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
730 		{ 0,				0 },
731 	};
732 	int i;
733 
734 	for (i = 0; dspcode[i].reg != 0; i++)
735 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
736 }
737 
738 static void
739 brgphy_fixup_adjust_trim(struct mii_softc *sc)
740 {
741 	static const struct {
742 		int		reg;
743 		uint16_t	val;
744 	} dspcode[] = {
745 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
746 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
747 		{ BRGPHY_MII_DSP_RW_PORT,	0x110b },
748 		{ BRGPHY_MII_TEST1,			0x0014 },
749 		{ BRGPHY_MII_AUXCTL,		0x0400 },
750 		{ 0,				0 },
751 	};
752 	int i;
753 
754 	for (i = 0; dspcode[i].reg != 0; i++)
755 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
756 }
757 
758 static void
759 brgphy_fixup_ber_bug(struct mii_softc *sc)
760 {
761 	static const struct {
762 		int		reg;
763 		uint16_t	val;
764 	} dspcode[] = {
765 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
766 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
767 		{ BRGPHY_MII_DSP_RW_PORT,	0x310b },
768 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
769 		{ BRGPHY_MII_DSP_RW_PORT,	0x9506 },
770 		{ BRGPHY_MII_DSP_ADDR_REG,	0x401f },
771 		{ BRGPHY_MII_DSP_RW_PORT,	0x14e2 },
772 		{ BRGPHY_MII_AUXCTL,		0x0400 },
773 		{ 0,				0 },
774 	};
775 	int i;
776 
777 	for (i = 0; dspcode[i].reg != 0; i++)
778 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
779 }
780 
781 static void
782 brgphy_fixup_crc_bug(struct mii_softc *sc)
783 {
784 	static const struct {
785 		int		reg;
786 		uint16_t	val;
787 	} dspcode[] = {
788 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a75 },
789 		{ 0x1c,				0x8c68 },
790 		{ 0x1c,				0x8d68 },
791 		{ 0x1c,				0x8c68 },
792 		{ 0,				0 },
793 	};
794 	int i;
795 
796 	for (i = 0; dspcode[i].reg != 0; i++)
797 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
798 }
799 
800 static void
801 brgphy_fixup_jitter_bug(struct mii_softc *sc)
802 {
803 	static const struct {
804 		int		reg;
805 		uint16_t	val;
806 	} dspcode[] = {
807 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
808 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
809 		{ BRGPHY_MII_DSP_RW_PORT,	0x010b },
810 		{ BRGPHY_MII_AUXCTL,		0x0400 },
811 		{ 0,				0 },
812 	};
813 	int i;
814 
815 	for (i = 0; dspcode[i].reg != 0; i++)
816 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
817 }
818 
819 static void
820 brgphy_fixup_disable_early_dac(struct mii_softc *sc)
821 {
822 	uint32_t val;
823 
824 	PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x0f08);
825 	val = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
826 	val &= ~(1 << 8);
827 	PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, val);
828 
829 }
830 
831 static void
832 brgphy_ethernet_wirespeed(struct mii_softc *sc)
833 {
834 	uint32_t	val;
835 
836 	/* Enable Ethernet@WireSpeed. */
837 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
838 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
839 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
840 }
841 
842 static void
843 brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
844 {
845 	uint32_t	val;
846 
847 	/* Set or clear jumbo frame settings in the PHY. */
848 	if (mtu > ETHER_MAX_LEN) {
849 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5401) {
850 			/* BCM5401 PHY cannot read-modify-write. */
851 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
852 		} else {
853 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
854 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
855 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
856 			    val | BRGPHY_AUXCTL_LONG_PKT);
857 		}
858 
859 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
860 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
861 		    val | BRGPHY_PHY_EXTCTL_HIGH_LA);
862 	} else {
863 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
864 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
865 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
866 		    val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
867 
868 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
869 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
870 			val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
871 	}
872 }
873 
874 static void
875 brgphy_reset(struct mii_softc *sc)
876 {
877 	struct bge_softc *bge_sc = NULL;
878 	struct bce_softc *bce_sc = NULL;
879 	struct ifnet *ifp;
880 	int i, val;
881 
882 	/*
883 	 * Perform a reset.  Note that at least some Broadcom PHYs default to
884 	 * being powered down as well as isolated after a reset but don't work
885 	 * if one or both of these bits are cleared.  However, they just work
886 	 * fine if both bits remain set, so we don't use mii_phy_reset() here.
887 	 */
888 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET);
889 
890 	/* Wait 100ms for it to complete. */
891 	for (i = 0; i < 100; i++) {
892 		if ((PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_RESET) == 0)
893 			break;
894 		DELAY(1000);
895 	}
896 
897 	/* Handle any PHY specific procedures following the reset. */
898 	switch (sc->mii_mpd_oui) {
899 	case MII_OUI_BROADCOM:
900 		switch (sc->mii_mpd_model) {
901 		case MII_MODEL_BROADCOM_BCM5400:
902 			bcm5401_load_dspcode(sc);
903 			break;
904 		case MII_MODEL_BROADCOM_BCM5401:
905 			if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
906 				bcm5401_load_dspcode(sc);
907 			break;
908 		case MII_MODEL_BROADCOM_BCM5411:
909 			bcm5411_load_dspcode(sc);
910 			break;
911 		case MII_MODEL_BROADCOM_BCM54K2:
912 			bcm54k2_load_dspcode(sc);
913 			break;
914 		}
915 		break;
916 	}
917 
918 	ifp = sc->mii_pdata->mii_ifp;
919 
920 	/* Find the driver associated with this PHY. */
921 	if (strcmp(ifp->if_dname, "bge") == 0)	{
922 		bge_sc = ifp->if_softc;
923 	} else if (strcmp(ifp->if_dname, "bce") == 0) {
924 		bce_sc = ifp->if_softc;
925 	}
926 
927 	if (bge_sc) {
928 		/* Fix up various bugs */
929 		if (bge_sc->bge_phy_flags & BGE_PHY_5704_A0_BUG)
930 			brgphy_fixup_5704_a0_bug(sc);
931 		if (bge_sc->bge_phy_flags & BGE_PHY_ADC_BUG)
932 			brgphy_fixup_adc_bug(sc);
933 		if (bge_sc->bge_phy_flags & BGE_PHY_ADJUST_TRIM)
934 			brgphy_fixup_adjust_trim(sc);
935 		if (bge_sc->bge_phy_flags & BGE_PHY_BER_BUG)
936 			brgphy_fixup_ber_bug(sc);
937 		if (bge_sc->bge_phy_flags & BGE_PHY_CRC_BUG)
938 			brgphy_fixup_crc_bug(sc);
939 		if (bge_sc->bge_phy_flags & BGE_PHY_JITTER_BUG)
940 			brgphy_fixup_jitter_bug(sc);
941 
942 		brgphy_jumbo_settings(sc, ifp->if_mtu);
943 
944 		if ((bge_sc->bge_phy_flags & BGE_PHY_NO_WIRESPEED) == 0)
945 			brgphy_ethernet_wirespeed(sc);
946 
947 		/* Enable Link LED on Dell boxes */
948 		if (bge_sc->bge_phy_flags & BGE_PHY_NO_3LED) {
949 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
950 			    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) &
951 			    ~BRGPHY_PHY_EXTCTL_3_LED);
952 		}
953 
954 		/* Adjust output voltage (From Linux driver) */
955 		if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5906)
956 			PHY_WRITE(sc, BRGPHY_MII_EPHY_PTEST, 0x12);
957 	} else if (bce_sc) {
958 		if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5708 &&
959 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
960 
961 			/* Store autoneg capabilities/results in digital block (Page 0) */
962 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG3_PG2);
963 			PHY_WRITE(sc, BRGPHY_5708S_PG2_DIGCTL_3_0,
964 				BRGPHY_5708S_PG2_DIGCTL_3_0_USE_IEEE);
965 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
966 
967 			/* Enable fiber mode and autodetection */
968 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL1,
969 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL1) |
970 				BRGPHY_5708S_PG0_1000X_CTL1_AUTODET_EN |
971 				BRGPHY_5708S_PG0_1000X_CTL1_FIBER_MODE);
972 
973 			/* Enable parallel detection */
974 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL2,
975 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL2) |
976 				BRGPHY_5708S_PG0_1000X_CTL2_PAR_DET_EN);
977 
978 			/* Advertise 2.5G support through next page during autoneg */
979 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
980 				PHY_WRITE(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1,
981 					PHY_READ(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1) |
982 					BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G);
983 
984 			/* Increase TX signal amplitude */
985 			if ((BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_A0) ||
986 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B0) ||
987 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B1)) {
988 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
989 					BRGPHY_5708S_TX_MISC_PG5);
990 				PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL1,
991 					PHY_READ(sc, BRGPHY_5708S_PG5_TXACTL1) & ~0x30);
992 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
993 					BRGPHY_5708S_DIG_PG0);
994 			}
995 
996 			/* Backplanes use special driver/pre-driver/pre-emphasis values. */
997 			if ((bce_sc->bce_shared_hw_cfg & BCE_SHARED_HW_CFG_PHY_BACKPLANE) &&
998 				(bce_sc->bce_port_hw_cfg & BCE_PORT_HW_CFG_CFG_TXCTL3_MASK)) {
999 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1000 						BRGPHY_5708S_TX_MISC_PG5);
1001 					PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL3,
1002 						bce_sc->bce_port_hw_cfg &
1003 						BCE_PORT_HW_CFG_CFG_TXCTL3_MASK);
1004 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1005 						BRGPHY_5708S_DIG_PG0);
1006 			}
1007 		} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709 &&
1008 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1009 
1010 			/* Select the SerDes Digital block of the AN MMD. */
1011 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_SERDES_DIG);
1012 			val = PHY_READ(sc, BRGPHY_SERDES_DIG_1000X_CTL1);
1013 			val &= ~BRGPHY_SD_DIG_1000X_CTL1_AUTODET;
1014 			val |= BRGPHY_SD_DIG_1000X_CTL1_FIBER;
1015 			PHY_WRITE(sc, BRGPHY_SERDES_DIG_1000X_CTL1, val);
1016 
1017 			/* Select the Over 1G block of the AN MMD. */
1018 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_OVER_1G);
1019 
1020 			/* Enable autoneg "Next Page" to advertise 2.5G support. */
1021 			val = PHY_READ(sc, BRGPHY_OVER_1G_UNFORMAT_PG1);
1022 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1023 				val |= BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1024 			else
1025 				val &= ~BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1026 			PHY_WRITE(sc, BRGPHY_OVER_1G_UNFORMAT_PG1, val);
1027 
1028 			/* Select the Multi-Rate Backplane Ethernet block of the AN MMD. */
1029 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_MRBE);
1030 
1031 			/* Enable MRBE speed autoneg. */
1032 			val = PHY_READ(sc, BRGPHY_MRBE_MSG_PG5_NP);
1033 			val |= BRGPHY_MRBE_MSG_PG5_NP_MBRE |
1034 			    BRGPHY_MRBE_MSG_PG5_NP_T2;
1035 			PHY_WRITE(sc, BRGPHY_MRBE_MSG_PG5_NP, val);
1036 
1037 			/* Select the Clause 73 User B0 block of the AN MMD. */
1038 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_CL73_USER_B0);
1039 
1040 			/* Enable MRBE speed autoneg. */
1041 			PHY_WRITE(sc, BRGPHY_CL73_USER_B0_MBRE_CTL1,
1042 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_NP_AFT_BP |
1043 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_STA_MGR |
1044 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_ANEG);
1045 
1046 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
1047 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
1048         } else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709) {
1049 			if ((BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Ax) ||
1050 				(BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Bx))
1051 				brgphy_fixup_disable_early_dac(sc);
1052 
1053 			brgphy_jumbo_settings(sc, ifp->if_mtu);
1054 			brgphy_ethernet_wirespeed(sc);
1055 		} else {
1056 			brgphy_fixup_ber_bug(sc);
1057 			brgphy_jumbo_settings(sc, ifp->if_mtu);
1058 			brgphy_ethernet_wirespeed(sc);
1059 		}
1060 	}
1061 }
1062