xref: /freebsd/sys/dev/mii/brgphy.c (revision 3e8eb5c7f4909209c042403ddee340b2ee7003a5)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (c) 2000
5  *	Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Bill Paul.
18  * 4. Neither the name of the author nor the names of any co-contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32  * THE POSSIBILITY OF SUCH DAMAGE.
33  */
34 
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37 
38 /*
39  * Driver for the Broadcom BCM54xx/57xx 1000baseTX PHY.
40  */
41 
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/module.h>
46 #include <sys/socket.h>
47 #include <sys/bus.h>
48 #include <sys/taskqueue.h>
49 
50 #include <net/if.h>
51 #include <net/if_var.h>
52 #include <net/ethernet.h>
53 #include <net/if_media.h>
54 
55 #include <dev/mii/mii.h>
56 #include <dev/mii/miivar.h>
57 #include "miidevs.h"
58 
59 #include <dev/mii/brgphyreg.h>
60 #include <net/if_arp.h>
61 #include <machine/bus.h>
62 #include <dev/bge/if_bgereg.h>
63 #include <dev/bce/if_bcereg.h>
64 
65 #include <dev/pci/pcireg.h>
66 #include <dev/pci/pcivar.h>
67 
68 #include "miibus_if.h"
69 
70 static int brgphy_probe(device_t);
71 static int brgphy_attach(device_t);
72 
73 struct brgphy_softc {
74 	struct mii_softc mii_sc;
75 	int serdes_flags;	/* Keeps track of the serdes type used */
76 #define BRGPHY_5706S		0x0001
77 #define BRGPHY_5708S		0x0002
78 #define BRGPHY_NOANWAIT		0x0004
79 #define BRGPHY_5709S		0x0008
80 	int bce_phy_flags;	/* PHY flags transferred from the MAC driver */
81 };
82 
83 static device_method_t brgphy_methods[] = {
84 	/* device interface */
85 	DEVMETHOD(device_probe,		brgphy_probe),
86 	DEVMETHOD(device_attach,	brgphy_attach),
87 	DEVMETHOD(device_detach,	mii_phy_detach),
88 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
89 	DEVMETHOD_END
90 };
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, 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_bcm54xx_clock_delay(struct mii_softc *);
117 static void	brgphy_jumbo_settings(struct mii_softc *, u_long);
118 
119 static const struct mii_phydesc brgphys[] = {
120 	MII_PHY_DESC(BROADCOM, BCM5400),
121 	MII_PHY_DESC(BROADCOM, BCM5401),
122 	MII_PHY_DESC(BROADCOM, BCM5402),
123 	MII_PHY_DESC(BROADCOM, BCM5411),
124 	MII_PHY_DESC(BROADCOM, BCM5404),
125 	MII_PHY_DESC(BROADCOM, BCM5424),
126 	MII_PHY_DESC(BROADCOM, BCM54K2),
127 	MII_PHY_DESC(BROADCOM, BCM5701),
128 	MII_PHY_DESC(BROADCOM, BCM5703),
129 	MII_PHY_DESC(BROADCOM, BCM5704),
130 	MII_PHY_DESC(BROADCOM, BCM5705),
131 	MII_PHY_DESC(BROADCOM, BCM5706),
132 	MII_PHY_DESC(BROADCOM, BCM5714),
133 	MII_PHY_DESC(BROADCOM, BCM5421),
134 	MII_PHY_DESC(BROADCOM, BCM5750),
135 	MII_PHY_DESC(BROADCOM, BCM5752),
136 	MII_PHY_DESC(BROADCOM, BCM5780),
137 	MII_PHY_DESC(BROADCOM, BCM5708C),
138 	MII_PHY_DESC(BROADCOM, BCM5466),
139 	MII_PHY_DESC(BROADCOM2, BCM5478),
140 	MII_PHY_DESC(BROADCOM2, BCM5488),
141 	MII_PHY_DESC(BROADCOM2, BCM5482),
142 	MII_PHY_DESC(BROADCOM2, BCM5708S),
143 	MII_PHY_DESC(BROADCOM2, BCM5709C),
144 	MII_PHY_DESC(BROADCOM2, BCM5709S),
145 	MII_PHY_DESC(BROADCOM2, BCM5709CAX),
146 	MII_PHY_DESC(BROADCOM2, BCM5722),
147 	MII_PHY_DESC(BROADCOM2, BCM5755),
148 	MII_PHY_DESC(BROADCOM2, BCM5754),
149 	MII_PHY_DESC(BROADCOM2, BCM5761),
150 	MII_PHY_DESC(BROADCOM2, BCM5784),
151 #ifdef notyet	/* better handled by ukphy(4) until WARs are implemented */
152 	MII_PHY_DESC(BROADCOM2, BCM5785),
153 #endif
154 	MII_PHY_DESC(BROADCOM3, BCM54618SE),
155 	MII_PHY_DESC(BROADCOM3, BCM5717C),
156 	MII_PHY_DESC(BROADCOM3, BCM5719C),
157 	MII_PHY_DESC(BROADCOM3, BCM5720C),
158 	MII_PHY_DESC(BROADCOM3, BCM57765),
159 	MII_PHY_DESC(BROADCOM3, BCM57780),
160 	MII_PHY_DESC(BROADCOM4, BCM54213PE),
161 	MII_PHY_DESC(BROADCOM4, BCM5725C),
162 	MII_PHY_DESC(xxBROADCOM_ALT1, BCM5906),
163 	MII_PHY_END
164 };
165 
166 static const struct mii_phy_funcs brgphy_funcs = {
167 	brgphy_service,
168 	brgphy_status,
169 	brgphy_reset
170 };
171 
172 static const struct hs21_type {
173 	const uint32_t id;
174 	const char *prod;
175 } hs21_type_lists[] = {
176 	{ 0x57081021, "IBM eServer BladeCenter HS21" },
177 	{ 0x57081011, "IBM eServer BladeCenter HS21 -[8853PAU]-" },
178 };
179 
180 static int
181 detect_hs21(struct bce_softc *bce_sc)
182 {
183 	char *sysenv;
184 	int found, i;
185 
186 	found = 0;
187 	sysenv = kern_getenv("smbios.system.product");
188 	if (sysenv == NULL)
189 		return (found);
190 	for (i = 0; i < nitems(hs21_type_lists); i++) {
191 		if (bce_sc->bce_chipid == hs21_type_lists[i].id &&
192 		    strncmp(sysenv, hs21_type_lists[i].prod,
193 		    strlen(hs21_type_lists[i].prod)) == 0) {
194 			found++;
195 			break;
196 		}
197 	}
198 	freeenv(sysenv);
199 	return (found);
200 }
201 
202 /* Search for our PHY in the list of known PHYs */
203 static int
204 brgphy_probe(device_t dev)
205 {
206 
207 	return (mii_phy_dev_probe(dev, brgphys, BUS_PROBE_DEFAULT));
208 }
209 
210 /* Attach the PHY to the MII bus */
211 static int
212 brgphy_attach(device_t dev)
213 {
214 	struct brgphy_softc *bsc;
215 	struct bge_softc *bge_sc = NULL;
216 	struct bce_softc *bce_sc = NULL;
217 	struct mii_softc *sc;
218 
219 	bsc = device_get_softc(dev);
220 	sc = &bsc->mii_sc;
221 
222 	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
223 	    &brgphy_funcs, 0);
224 
225 	bsc->serdes_flags = 0;
226 
227 	/* Find the MAC driver associated with this PHY. */
228 	if (mii_dev_mac_match(dev, "bge"))
229 		bge_sc = mii_dev_mac_softc(dev);
230 	else if (mii_dev_mac_match(dev, "bce"))
231 		bce_sc = mii_dev_mac_softc(dev);
232 
233 	/* Handle any special cases based on the PHY ID */
234 	switch (sc->mii_mpd_oui) {
235 	case MII_OUI_BROADCOM:
236 		switch (sc->mii_mpd_model) {
237 		case MII_MODEL_BROADCOM_BCM5706:
238 		case MII_MODEL_BROADCOM_BCM5714:
239 			/*
240 			 * The 5464 PHY used in the 5706 supports both copper
241 			 * and fiber interfaces over GMII.  Need to check the
242 			 * shadow registers to see which mode is actually
243 			 * in effect, and therefore whether we have 5706C or
244 			 * 5706S.
245 			 */
246 			PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
247 				BRGPHY_SHADOW_1C_MODE_CTRL);
248 			if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
249 				BRGPHY_SHADOW_1C_ENA_1000X) {
250 				bsc->serdes_flags |= BRGPHY_5706S;
251 				sc->mii_flags |= MIIF_HAVEFIBER;
252 			}
253 			break;
254 		}
255 		break;
256 	case MII_OUI_BROADCOM2:
257 		switch (sc->mii_mpd_model) {
258 		case MII_MODEL_BROADCOM2_BCM5708S:
259 			bsc->serdes_flags |= BRGPHY_5708S;
260 			sc->mii_flags |= MIIF_HAVEFIBER;
261 			break;
262 		case MII_MODEL_BROADCOM2_BCM5709S:
263 			/*
264 			 * XXX
265 			 * 5720S and 5709S shares the same PHY id.
266 			 * Assume 5720S PHY if parent device is bge(4).
267 			 */
268 			if (bge_sc != NULL)
269 				bsc->serdes_flags |= BRGPHY_5708S;
270 			else
271 				bsc->serdes_flags |= BRGPHY_5709S;
272 			sc->mii_flags |= MIIF_HAVEFIBER;
273 			break;
274 		}
275 		break;
276 	}
277 
278 	PHY_RESET(sc);
279 
280 	/* Read the PHY's capabilities. */
281 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
282 	if (sc->mii_capabilities & BMSR_EXTSTAT)
283 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
284 	device_printf(dev, " ");
285 
286 	/* Add the supported media types */
287 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
288 		mii_phy_add_media(sc);
289 		printf("\n");
290 	} else {
291 		sc->mii_anegticks = MII_ANEGTICKS_GIGE;
292 		ifmedia_add(&sc->mii_pdata->mii_media,
293 		    IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
294 		    0, NULL);
295 		printf("1000baseSX-FDX, ");
296 		/*
297 		 * 2.5G support is a software enabled feature
298 		 * on the 5708S and 5709S.
299 		 */
300 		if (bce_sc && (bce_sc->bce_phy_flags &
301 		    BCE_PHY_2_5G_CAPABLE_FLAG)) {
302 			ifmedia_add(&sc->mii_pdata->mii_media,
303 			    IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX,
304 			    sc->mii_inst), 0, NULL);
305 			printf("2500baseSX-FDX, ");
306 		} else if ((bsc->serdes_flags & BRGPHY_5708S) && bce_sc &&
307 		    (detect_hs21(bce_sc) != 0)) {
308 			/*
309 			 * There appears to be certain silicon revision
310 			 * in IBM HS21 blades that is having issues with
311 			 * this driver wating for the auto-negotiation to
312 			 * complete. This happens with a specific chip id
313 			 * only and when the 1000baseSX-FDX is the only
314 			 * mode. Workaround this issue since it's unlikely
315 			 * to be ever addressed.
316 			 */
317 			printf("auto-neg workaround, ");
318 			bsc->serdes_flags |= BRGPHY_NOANWAIT;
319 		}
320 		ifmedia_add(&sc->mii_pdata->mii_media, IFM_MAKEWORD(IFM_ETHER,
321 		    IFM_AUTO, 0, sc->mii_inst), 0, NULL);
322 		printf("auto\n");
323 	}
324 
325 	MIIBUS_MEDIAINIT(sc->mii_dev);
326 	return (0);
327 }
328 
329 static int
330 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
331 {
332 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
333 	int val;
334 
335 	switch (cmd) {
336 	case MII_POLLSTAT:
337 		break;
338 	case MII_MEDIACHG:
339 		/* Todo: Why is this here?  Is it really needed? */
340 		PHY_RESET(sc);	/* XXX hardware bug work-around */
341 
342 		switch (IFM_SUBTYPE(ife->ifm_media)) {
343 		case IFM_AUTO:
344 			brgphy_mii_phy_auto(sc, ife->ifm_media);
345 			break;
346 		case IFM_2500_SX:
347 		case IFM_1000_SX:
348 		case IFM_1000_T:
349 		case IFM_100_TX:
350 		case IFM_10_T:
351 			brgphy_setmedia(sc, ife->ifm_media);
352 			break;
353 		default:
354 			return (EINVAL);
355 		}
356 		break;
357 	case MII_TICK:
358 		/* Bail if autoneg isn't in process. */
359 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
360 			sc->mii_ticks = 0;
361 			break;
362 		}
363 
364 		/*
365 		 * Check to see if we have link.  If we do, we don't
366 		 * need to restart the autonegotiation process.
367 		 */
368 		val = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
369 		if (val & BMSR_LINK) {
370 			sc->mii_ticks = 0;	/* Reset autoneg timer. */
371 			break;
372 		}
373 
374 		/* Announce link loss right after it happens. */
375 		if (sc->mii_ticks++ == 0)
376 			break;
377 
378 		/* Only retry autonegotiation every mii_anegticks seconds. */
379 		if (sc->mii_ticks <= sc->mii_anegticks)
380 			break;
381 
382 		/* Retry autonegotiation */
383 		sc->mii_ticks = 0;
384 		brgphy_mii_phy_auto(sc, ife->ifm_media);
385 		break;
386 	}
387 
388 	/* Update the media status. */
389 	PHY_STATUS(sc);
390 
391 	/*
392 	 * Callback if something changed. Note that we need to poke
393 	 * the DSP on the Broadcom PHYs if the media changes.
394 	 */
395 	if (sc->mii_media_active != mii->mii_media_active ||
396 	    sc->mii_media_status != mii->mii_media_status ||
397 	    cmd == MII_MEDIACHG) {
398 		switch (sc->mii_mpd_oui) {
399 		case MII_OUI_BROADCOM:
400 			switch (sc->mii_mpd_model) {
401 			case MII_MODEL_BROADCOM_BCM5400:
402 				bcm5401_load_dspcode(sc);
403 				break;
404 			case MII_MODEL_BROADCOM_BCM5401:
405 				if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
406 					bcm5401_load_dspcode(sc);
407 				break;
408 			case MII_MODEL_BROADCOM_BCM5411:
409 				bcm5411_load_dspcode(sc);
410 				break;
411 			case MII_MODEL_BROADCOM_BCM54K2:
412 				bcm54k2_load_dspcode(sc);
413 				break;
414 			}
415 			break;
416 		case MII_OUI_BROADCOM4:
417 			switch (sc->mii_mpd_model) {
418 			case MII_MODEL_BROADCOM4_BCM54213PE:
419 				brgphy_bcm54xx_clock_delay(sc);
420 				break;
421 			}
422 		}
423 	}
424 	mii_phy_update(sc, cmd);
425 	return (0);
426 }
427 
428 /****************************************************************************/
429 /* Sets the PHY link speed.                                                 */
430 /*                                                                          */
431 /* Returns:                                                                 */
432 /*   None                                                                   */
433 /****************************************************************************/
434 static void
435 brgphy_setmedia(struct mii_softc *sc, int media)
436 {
437 	int bmcr = 0, gig;
438 
439 	switch (IFM_SUBTYPE(media)) {
440 	case IFM_2500_SX:
441 		break;
442 	case IFM_1000_SX:
443 	case IFM_1000_T:
444 		bmcr = BRGPHY_S1000;
445 		break;
446 	case IFM_100_TX:
447 		bmcr = BRGPHY_S100;
448 		break;
449 	case IFM_10_T:
450 	default:
451 		bmcr = BRGPHY_S10;
452 		break;
453 	}
454 
455 	if ((media & IFM_FDX) != 0) {
456 		bmcr |= BRGPHY_BMCR_FDX;
457 		gig = BRGPHY_1000CTL_AFD;
458 	} else {
459 		gig = BRGPHY_1000CTL_AHD;
460 	}
461 
462 	/* Force loopback to disconnect PHY from Ethernet medium. */
463 	brgphy_enable_loopback(sc);
464 
465 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
466 	PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
467 
468 	if (IFM_SUBTYPE(media) != IFM_1000_T &&
469 	    IFM_SUBTYPE(media) != IFM_1000_SX) {
470 		PHY_WRITE(sc, BRGPHY_MII_BMCR, bmcr);
471 		return;
472 	}
473 
474 	if (IFM_SUBTYPE(media) == IFM_1000_T) {
475 		gig |= BRGPHY_1000CTL_MSE;
476 		if ((media & IFM_ETH_MASTER) != 0)
477 			gig |= BRGPHY_1000CTL_MSC;
478 	}
479 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
480 	PHY_WRITE(sc, BRGPHY_MII_BMCR,
481 	    bmcr | BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
482 }
483 
484 /****************************************************************************/
485 /* Set the media status based on the PHY settings.                          */
486 /*                                                                          */
487 /* Returns:                                                                 */
488 /*   None                                                                   */
489 /****************************************************************************/
490 static void
491 brgphy_status(struct mii_softc *sc)
492 {
493 	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
494 	struct mii_data *mii = sc->mii_pdata;
495 	int aux, bmcr, bmsr, val, xstat;
496 	u_int flowstat;
497 
498 	mii->mii_media_status = IFM_AVALID;
499 	mii->mii_media_active = IFM_ETHER;
500 
501 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR) | PHY_READ(sc, BRGPHY_MII_BMSR);
502 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
503 
504 	if (bmcr & BRGPHY_BMCR_LOOP) {
505 		mii->mii_media_active |= IFM_LOOP;
506 	}
507 
508 	if ((bmcr & BRGPHY_BMCR_AUTOEN) &&
509 	    (bmsr & BRGPHY_BMSR_ACOMP) == 0 &&
510 	    (bsc->serdes_flags & BRGPHY_NOANWAIT) == 0) {
511 		/* Erg, still trying, I guess... */
512 		mii->mii_media_active |= IFM_NONE;
513 		return;
514 	}
515 
516 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
517 		/*
518 		 * NB: reading the ANAR, ANLPAR or 1000STS after the AUXSTS
519 		 * wedges at least the PHY of BCM5704 (but not others).
520 		 */
521 		flowstat = mii_phy_flowstatus(sc);
522 		xstat = PHY_READ(sc, BRGPHY_MII_1000STS);
523 		aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
524 
525 		/* If copper link is up, get the negotiated speed/duplex. */
526 		if (aux & BRGPHY_AUXSTS_LINK) {
527 			mii->mii_media_status |= IFM_ACTIVE;
528 			switch (aux & BRGPHY_AUXSTS_AN_RES) {
529 			case BRGPHY_RES_1000FD:
530 				mii->mii_media_active |= IFM_1000_T | IFM_FDX; 	break;
531 			case BRGPHY_RES_1000HD:
532 				mii->mii_media_active |= IFM_1000_T | IFM_HDX; 	break;
533 			case BRGPHY_RES_100FD:
534 				mii->mii_media_active |= IFM_100_TX | IFM_FDX; break;
535 			case BRGPHY_RES_100T4:
536 				mii->mii_media_active |= IFM_100_T4; break;
537 			case BRGPHY_RES_100HD:
538 				mii->mii_media_active |= IFM_100_TX | IFM_HDX; 	break;
539 			case BRGPHY_RES_10FD:
540 				mii->mii_media_active |= IFM_10_T | IFM_FDX; break;
541 			case BRGPHY_RES_10HD:
542 				mii->mii_media_active |= IFM_10_T | IFM_HDX; break;
543 			default:
544 				mii->mii_media_active |= IFM_NONE; break;
545 			}
546 
547 			if ((mii->mii_media_active & IFM_FDX) != 0)
548 				mii->mii_media_active |= flowstat;
549 
550 			if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T &&
551 			    (xstat & BRGPHY_1000STS_MSR) != 0)
552 				mii->mii_media_active |= IFM_ETH_MASTER;
553 		}
554 	} else {
555 		/* Todo: Add support for flow control. */
556 		/* If serdes link is up, get the negotiated speed/duplex. */
557 		if (bmsr & BRGPHY_BMSR_LINK) {
558 			mii->mii_media_status |= IFM_ACTIVE;
559 		}
560 
561 		/* Check the link speed/duplex based on the PHY type. */
562 		if (bsc->serdes_flags & BRGPHY_5706S) {
563 			mii->mii_media_active |= IFM_1000_SX;
564 
565 			/* If autoneg enabled, read negotiated duplex settings */
566 			if (bmcr & BRGPHY_BMCR_AUTOEN) {
567 				val = PHY_READ(sc, BRGPHY_SERDES_ANAR) & PHY_READ(sc, BRGPHY_SERDES_ANLPAR);
568 				if (val & BRGPHY_SERDES_ANAR_FDX)
569 					mii->mii_media_active |= IFM_FDX;
570 				else
571 					mii->mii_media_active |= IFM_HDX;
572 			}
573 		} else if (bsc->serdes_flags & BRGPHY_5708S) {
574 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
575 			xstat = PHY_READ(sc, BRGPHY_5708S_PG0_1000X_STAT1);
576 
577 			/* Check for MRBE auto-negotiated speed results. */
578 			switch (xstat & BRGPHY_5708S_PG0_1000X_STAT1_SPEED_MASK) {
579 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_10:
580 				mii->mii_media_active |= IFM_10_FL; break;
581 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_100:
582 				mii->mii_media_active |= IFM_100_FX; break;
583 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_1G:
584 				mii->mii_media_active |= IFM_1000_SX; break;
585 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_25G:
586 				mii->mii_media_active |= IFM_2500_SX; break;
587 			}
588 
589 			/* Check for MRBE auto-negotiated duplex results. */
590 			if (xstat & BRGPHY_5708S_PG0_1000X_STAT1_FDX)
591 				mii->mii_media_active |= IFM_FDX;
592 			else
593 				mii->mii_media_active |= IFM_HDX;
594 		} else if (bsc->serdes_flags & BRGPHY_5709S) {
595 			/* Select GP Status Block of the AN MMD, get autoneg results. */
596 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_GP_STATUS);
597 			xstat = PHY_READ(sc, BRGPHY_GP_STATUS_TOP_ANEG_STATUS);
598 
599 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
600 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
601 
602 			/* Check for MRBE auto-negotiated speed results. */
603 			switch (xstat & BRGPHY_GP_STATUS_TOP_ANEG_SPEED_MASK) {
604 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_10:
605 					mii->mii_media_active |= IFM_10_FL; break;
606 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_100:
607 					mii->mii_media_active |= IFM_100_FX; break;
608 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_1G:
609 					mii->mii_media_active |= IFM_1000_SX; break;
610 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_25G:
611 					mii->mii_media_active |= IFM_2500_SX; break;
612 			}
613 
614 			/* Check for MRBE auto-negotiated duplex results. */
615 			if (xstat & BRGPHY_GP_STATUS_TOP_ANEG_FDX)
616 				mii->mii_media_active |= IFM_FDX;
617 			else
618 				mii->mii_media_active |= IFM_HDX;
619 		}
620 	}
621 }
622 
623 static void
624 brgphy_mii_phy_auto(struct mii_softc *sc, int media)
625 {
626 	int anar, ktcr = 0;
627 
628 	PHY_RESET(sc);
629 
630 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
631 		anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
632 		if ((media & IFM_FLOW) != 0 ||
633 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
634 			anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP;
635 		PHY_WRITE(sc, BRGPHY_MII_ANAR, anar);
636 		ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
637 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5701)
638 			ktcr |= BRGPHY_1000CTL_MSE | BRGPHY_1000CTL_MSC;
639 		PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
640 		PHY_READ(sc, BRGPHY_MII_1000CTL);
641 	} else {
642 		anar = BRGPHY_SERDES_ANAR_FDX | BRGPHY_SERDES_ANAR_HDX;
643 		if ((media & IFM_FLOW) != 0 ||
644 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
645 			anar |= BRGPHY_SERDES_ANAR_BOTH_PAUSE;
646 		PHY_WRITE(sc, BRGPHY_SERDES_ANAR, anar);
647 	}
648 
649 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN |
650 	    BRGPHY_BMCR_STARTNEG);
651 	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
652 }
653 
654 /* Enable loopback to force the link down. */
655 static void
656 brgphy_enable_loopback(struct mii_softc *sc)
657 {
658 	int i;
659 
660 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
661 	for (i = 0; i < 15000; i++) {
662 		if (!(PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_LINK))
663 			break;
664 		DELAY(10);
665 	}
666 }
667 
668 /* Turn off tap power management on 5401. */
669 static void
670 bcm5401_load_dspcode(struct mii_softc *sc)
671 {
672 	static const struct {
673 		int		reg;
674 		uint16_t	val;
675 	} dspcode[] = {
676 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
677 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
678 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
679 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
680 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
681 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
682 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
683 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
684 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
685 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
686 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
687 		{ 0,				0 },
688 	};
689 	int i;
690 
691 	for (i = 0; dspcode[i].reg != 0; i++)
692 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
693 	DELAY(40);
694 }
695 
696 static void
697 bcm5411_load_dspcode(struct mii_softc *sc)
698 {
699 	static const struct {
700 		int		reg;
701 		uint16_t	val;
702 	} dspcode[] = {
703 		{ 0x1c,				0x8c23 },
704 		{ 0x1c,				0x8ca3 },
705 		{ 0x1c,				0x8c23 },
706 		{ 0,				0 },
707 	};
708 	int i;
709 
710 	for (i = 0; dspcode[i].reg != 0; i++)
711 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
712 }
713 
714 void
715 bcm54k2_load_dspcode(struct mii_softc *sc)
716 {
717 	static const struct {
718 		int		reg;
719 		uint16_t	val;
720 	} dspcode[] = {
721 		{ 4,				0x01e1 },
722 		{ 9,				0x0300 },
723 		{ 0,				0 },
724 	};
725 	int i;
726 
727 	for (i = 0; dspcode[i].reg != 0; i++)
728 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
729 
730 }
731 
732 static void
733 brgphy_fixup_5704_a0_bug(struct mii_softc *sc)
734 {
735 	static const struct {
736 		int		reg;
737 		uint16_t	val;
738 	} dspcode[] = {
739 		{ 0x1c,				0x8d68 },
740 		{ 0x1c,				0x8d68 },
741 		{ 0,				0 },
742 	};
743 	int i;
744 
745 	for (i = 0; dspcode[i].reg != 0; i++)
746 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
747 }
748 
749 static void
750 brgphy_fixup_adc_bug(struct mii_softc *sc)
751 {
752 	static const struct {
753 		int		reg;
754 		uint16_t	val;
755 	} dspcode[] = {
756 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
757 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
758 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
759 		{ 0,				0 },
760 	};
761 	int i;
762 
763 	for (i = 0; dspcode[i].reg != 0; i++)
764 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
765 }
766 
767 static void
768 brgphy_fixup_adjust_trim(struct mii_softc *sc)
769 {
770 	static const struct {
771 		int		reg;
772 		uint16_t	val;
773 	} dspcode[] = {
774 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
775 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
776 		{ BRGPHY_MII_DSP_RW_PORT,	0x110b },
777 		{ BRGPHY_MII_TEST1,			0x0014 },
778 		{ BRGPHY_MII_AUXCTL,		0x0400 },
779 		{ 0,				0 },
780 	};
781 	int i;
782 
783 	for (i = 0; dspcode[i].reg != 0; i++)
784 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
785 }
786 
787 static void
788 brgphy_fixup_ber_bug(struct mii_softc *sc)
789 {
790 	static const struct {
791 		int		reg;
792 		uint16_t	val;
793 	} dspcode[] = {
794 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
795 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
796 		{ BRGPHY_MII_DSP_RW_PORT,	0x310b },
797 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
798 		{ BRGPHY_MII_DSP_RW_PORT,	0x9506 },
799 		{ BRGPHY_MII_DSP_ADDR_REG,	0x401f },
800 		{ BRGPHY_MII_DSP_RW_PORT,	0x14e2 },
801 		{ BRGPHY_MII_AUXCTL,		0x0400 },
802 		{ 0,				0 },
803 	};
804 	int i;
805 
806 	for (i = 0; dspcode[i].reg != 0; i++)
807 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
808 }
809 
810 static void
811 brgphy_fixup_crc_bug(struct mii_softc *sc)
812 {
813 	static const struct {
814 		int		reg;
815 		uint16_t	val;
816 	} dspcode[] = {
817 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a75 },
818 		{ 0x1c,				0x8c68 },
819 		{ 0x1c,				0x8d68 },
820 		{ 0x1c,				0x8c68 },
821 		{ 0,				0 },
822 	};
823 	int i;
824 
825 	for (i = 0; dspcode[i].reg != 0; i++)
826 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
827 }
828 
829 static void
830 brgphy_fixup_jitter_bug(struct mii_softc *sc)
831 {
832 	static const struct {
833 		int		reg;
834 		uint16_t	val;
835 	} dspcode[] = {
836 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
837 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
838 		{ BRGPHY_MII_DSP_RW_PORT,	0x010b },
839 		{ BRGPHY_MII_AUXCTL,		0x0400 },
840 		{ 0,				0 },
841 	};
842 	int i;
843 
844 	for (i = 0; dspcode[i].reg != 0; i++)
845 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
846 }
847 
848 static void
849 brgphy_fixup_disable_early_dac(struct mii_softc *sc)
850 {
851 	uint32_t val;
852 
853 	PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x0f08);
854 	val = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
855 	val &= ~(1 << 8);
856 	PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, val);
857 
858 }
859 
860 static void
861 brgphy_ethernet_wirespeed(struct mii_softc *sc)
862 {
863 	uint32_t	val;
864 
865 	/* Enable Ethernet@WireSpeed. */
866 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
867 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
868 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
869 }
870 
871 static void
872 brgphy_bcm54xx_clock_delay(struct mii_softc *sc)
873 {
874 	uint16_t val;
875 
876 	if (!(sc->mii_flags & (MIIF_RX_DELAY | MIIF_TX_DELAY)))
877 		/* Adjusting the clocks in rgmii mode causes packet losses. */
878 		return;
879 
880 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_SHADOW_MISC |
881 	    BRGPHY_AUXCTL_SHADOW_MISC << BRGPHY_AUXCTL_MISC_READ_SHIFT);
882 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
883 	val &= BRGPHY_AUXCTL_MISC_DATA_MASK;
884 	if (sc->mii_flags & MIIF_RX_DELAY)
885 		val |= BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
886 	else
887 		val &= ~BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
888 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_MISC_WRITE_EN |
889 	    BRGPHY_AUXCTL_SHADOW_MISC | val);
890 
891 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_CLK_CTRL);
892 	val = PHY_READ(sc, BRGPHY_MII_SHADOW_1C);
893 	val &= BRGPHY_SHADOW_1C_DATA_MASK;
894 	if (sc->mii_flags & MIIF_TX_DELAY)
895 		val |= BRGPHY_SHADOW_1C_GTXCLK_EN;
896 	else
897 		val &= ~BRGPHY_SHADOW_1C_GTXCLK_EN;
898 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_WRITE_EN |
899 	    BRGPHY_SHADOW_1C_CLK_CTRL | val);
900 }
901 
902 static void
903 brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
904 {
905 	uint32_t	val;
906 
907 	/* Set or clear jumbo frame settings in the PHY. */
908 	if (mtu > ETHER_MAX_LEN) {
909 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5401) {
910 			/* BCM5401 PHY cannot read-modify-write. */
911 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
912 		} else {
913 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
914 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
915 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
916 			    val | BRGPHY_AUXCTL_LONG_PKT);
917 		}
918 
919 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
920 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
921 		    val | BRGPHY_PHY_EXTCTL_HIGH_LA);
922 	} else {
923 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
924 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
925 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
926 		    val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
927 
928 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
929 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
930 			val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
931 	}
932 }
933 
934 static void
935 brgphy_reset(struct mii_softc *sc)
936 {
937 	struct bge_softc *bge_sc = NULL;
938 	struct bce_softc *bce_sc = NULL;
939 	if_t ifp;
940 	int i, val;
941 
942 	/*
943 	 * Perform a reset.  Note that at least some Broadcom PHYs default to
944 	 * being powered down as well as isolated after a reset but don't work
945 	 * if one or both of these bits are cleared.  However, they just work
946 	 * fine if both bits remain set, so we don't use mii_phy_reset() here.
947 	 */
948 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET);
949 
950 	/* Wait 100ms for it to complete. */
951 	for (i = 0; i < 100; i++) {
952 		if ((PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_RESET) == 0)
953 			break;
954 		DELAY(1000);
955 	}
956 
957 	/* Handle any PHY specific procedures following the reset. */
958 	switch (sc->mii_mpd_oui) {
959 	case MII_OUI_BROADCOM:
960 		switch (sc->mii_mpd_model) {
961 		case MII_MODEL_BROADCOM_BCM5400:
962 			bcm5401_load_dspcode(sc);
963 			break;
964 		case MII_MODEL_BROADCOM_BCM5401:
965 			if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
966 				bcm5401_load_dspcode(sc);
967 			break;
968 		case MII_MODEL_BROADCOM_BCM5411:
969 			bcm5411_load_dspcode(sc);
970 			break;
971 		case MII_MODEL_BROADCOM_BCM54K2:
972 			bcm54k2_load_dspcode(sc);
973 			break;
974 		}
975 		break;
976 	case MII_OUI_BROADCOM3:
977 		switch (sc->mii_mpd_model) {
978 		case MII_MODEL_BROADCOM3_BCM5717C:
979 		case MII_MODEL_BROADCOM3_BCM5719C:
980 		case MII_MODEL_BROADCOM3_BCM5720C:
981 		case MII_MODEL_BROADCOM3_BCM57765:
982 			return;
983 		}
984 		break;
985 	case MII_OUI_BROADCOM4:
986 		return;
987 	}
988 
989 	ifp = sc->mii_pdata->mii_ifp;
990 
991 	/* Find the driver associated with this PHY. */
992 	if (mii_phy_mac_match(sc, "bge"))
993 		bge_sc = mii_phy_mac_softc(sc);
994 	else if (mii_phy_mac_match(sc, "bce"))
995 		bce_sc = mii_phy_mac_softc(sc);
996 
997 	if (bge_sc) {
998 		/* Fix up various bugs */
999 		if (bge_sc->bge_phy_flags & BGE_PHY_5704_A0_BUG)
1000 			brgphy_fixup_5704_a0_bug(sc);
1001 		if (bge_sc->bge_phy_flags & BGE_PHY_ADC_BUG)
1002 			brgphy_fixup_adc_bug(sc);
1003 		if (bge_sc->bge_phy_flags & BGE_PHY_ADJUST_TRIM)
1004 			brgphy_fixup_adjust_trim(sc);
1005 		if (bge_sc->bge_phy_flags & BGE_PHY_BER_BUG)
1006 			brgphy_fixup_ber_bug(sc);
1007 		if (bge_sc->bge_phy_flags & BGE_PHY_CRC_BUG)
1008 			brgphy_fixup_crc_bug(sc);
1009 		if (bge_sc->bge_phy_flags & BGE_PHY_JITTER_BUG)
1010 			brgphy_fixup_jitter_bug(sc);
1011 
1012 		if (bge_sc->bge_flags & BGE_FLAG_JUMBO)
1013 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1014 
1015 		if ((bge_sc->bge_phy_flags & BGE_PHY_NO_WIRESPEED) == 0)
1016 			brgphy_ethernet_wirespeed(sc);
1017 
1018 		/* Enable Link LED on Dell boxes */
1019 		if (bge_sc->bge_phy_flags & BGE_PHY_NO_3LED) {
1020 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
1021 			    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) &
1022 			    ~BRGPHY_PHY_EXTCTL_3_LED);
1023 		}
1024 
1025 		/* Adjust output voltage (From Linux driver) */
1026 		if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5906)
1027 			PHY_WRITE(sc, BRGPHY_MII_EPHY_PTEST, 0x12);
1028 	} else if (bce_sc) {
1029 		if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5708 &&
1030 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1031 			/* Store autoneg capabilities/results in digital block (Page 0) */
1032 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG3_PG2);
1033 			PHY_WRITE(sc, BRGPHY_5708S_PG2_DIGCTL_3_0,
1034 				BRGPHY_5708S_PG2_DIGCTL_3_0_USE_IEEE);
1035 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
1036 
1037 			/* Enable fiber mode and autodetection */
1038 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL1,
1039 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL1) |
1040 				BRGPHY_5708S_PG0_1000X_CTL1_AUTODET_EN |
1041 				BRGPHY_5708S_PG0_1000X_CTL1_FIBER_MODE);
1042 
1043 			/* Enable parallel detection */
1044 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL2,
1045 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL2) |
1046 				BRGPHY_5708S_PG0_1000X_CTL2_PAR_DET_EN);
1047 
1048 			/* Advertise 2.5G support through next page during autoneg */
1049 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1050 				PHY_WRITE(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1,
1051 					PHY_READ(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1) |
1052 					BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G);
1053 
1054 			/* Increase TX signal amplitude */
1055 			if ((BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_A0) ||
1056 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B0) ||
1057 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B1)) {
1058 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1059 					BRGPHY_5708S_TX_MISC_PG5);
1060 				PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL1,
1061 					PHY_READ(sc, BRGPHY_5708S_PG5_TXACTL1) & ~0x30);
1062 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1063 					BRGPHY_5708S_DIG_PG0);
1064 			}
1065 
1066 			/* Backplanes use special driver/pre-driver/pre-emphasis values. */
1067 			if ((bce_sc->bce_shared_hw_cfg & BCE_SHARED_HW_CFG_PHY_BACKPLANE) &&
1068 				(bce_sc->bce_port_hw_cfg & BCE_PORT_HW_CFG_CFG_TXCTL3_MASK)) {
1069 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1070 						BRGPHY_5708S_TX_MISC_PG5);
1071 					PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL3,
1072 						bce_sc->bce_port_hw_cfg &
1073 						BCE_PORT_HW_CFG_CFG_TXCTL3_MASK);
1074 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1075 						BRGPHY_5708S_DIG_PG0);
1076 			}
1077 		} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709 &&
1078 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1079 			/* Select the SerDes Digital block of the AN MMD. */
1080 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_SERDES_DIG);
1081 			val = PHY_READ(sc, BRGPHY_SERDES_DIG_1000X_CTL1);
1082 			val &= ~BRGPHY_SD_DIG_1000X_CTL1_AUTODET;
1083 			val |= BRGPHY_SD_DIG_1000X_CTL1_FIBER;
1084 			PHY_WRITE(sc, BRGPHY_SERDES_DIG_1000X_CTL1, val);
1085 
1086 			/* Select the Over 1G block of the AN MMD. */
1087 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_OVER_1G);
1088 
1089 			/* Enable autoneg "Next Page" to advertise 2.5G support. */
1090 			val = PHY_READ(sc, BRGPHY_OVER_1G_UNFORMAT_PG1);
1091 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1092 				val |= BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1093 			else
1094 				val &= ~BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1095 			PHY_WRITE(sc, BRGPHY_OVER_1G_UNFORMAT_PG1, val);
1096 
1097 			/* Select the Multi-Rate Backplane Ethernet block of the AN MMD. */
1098 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_MRBE);
1099 
1100 			/* Enable MRBE speed autoneg. */
1101 			val = PHY_READ(sc, BRGPHY_MRBE_MSG_PG5_NP);
1102 			val |= BRGPHY_MRBE_MSG_PG5_NP_MBRE |
1103 			    BRGPHY_MRBE_MSG_PG5_NP_T2;
1104 			PHY_WRITE(sc, BRGPHY_MRBE_MSG_PG5_NP, val);
1105 
1106 			/* Select the Clause 73 User B0 block of the AN MMD. */
1107 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_CL73_USER_B0);
1108 
1109 			/* Enable MRBE speed autoneg. */
1110 			PHY_WRITE(sc, BRGPHY_CL73_USER_B0_MBRE_CTL1,
1111 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_NP_AFT_BP |
1112 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_STA_MGR |
1113 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_ANEG);
1114 
1115 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
1116 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
1117         } else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709) {
1118 			if ((BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Ax) ||
1119 				(BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Bx))
1120 				brgphy_fixup_disable_early_dac(sc);
1121 
1122 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1123 			brgphy_ethernet_wirespeed(sc);
1124 		} else {
1125 			brgphy_fixup_ber_bug(sc);
1126 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1127 			brgphy_ethernet_wirespeed(sc);
1128 		}
1129 	}
1130 }
1131