xref: /freebsd/sys/dev/mii/brgphy.c (revision 22cf89c938886d14f5796fc49f9f020c23ea8eaf)
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 /*
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 driver_t brgphy_driver = {
91 	"brgphy",
92 	brgphy_methods,
93 	sizeof(struct brgphy_softc)
94 };
95 
96 DRIVER_MODULE(brgphy, miibus, brgphy_driver, 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_bcm54xx_clock_delay(struct mii_softc *);
115 static void	brgphy_jumbo_settings(struct mii_softc *, u_long);
116 
117 static const struct mii_phydesc brgphys[] = {
118 	MII_PHY_DESC(BROADCOM, BCM5400),
119 	MII_PHY_DESC(BROADCOM, BCM5401),
120 	MII_PHY_DESC(BROADCOM, BCM5402),
121 	MII_PHY_DESC(BROADCOM, BCM5411),
122 	MII_PHY_DESC(BROADCOM, BCM5404),
123 	MII_PHY_DESC(BROADCOM, BCM5424),
124 	MII_PHY_DESC(BROADCOM, BCM54K2),
125 	MII_PHY_DESC(BROADCOM, BCM5701),
126 	MII_PHY_DESC(BROADCOM, BCM5703),
127 	MII_PHY_DESC(BROADCOM, BCM5704),
128 	MII_PHY_DESC(BROADCOM, BCM5705),
129 	MII_PHY_DESC(BROADCOM, BCM5706),
130 	MII_PHY_DESC(BROADCOM, BCM5714),
131 	MII_PHY_DESC(BROADCOM, BCM5421),
132 	MII_PHY_DESC(BROADCOM, BCM5750),
133 	MII_PHY_DESC(BROADCOM, BCM5752),
134 	MII_PHY_DESC(BROADCOM, BCM5780),
135 	MII_PHY_DESC(BROADCOM, BCM5708C),
136 	MII_PHY_DESC(BROADCOM, BCM5466),
137 	MII_PHY_DESC(BROADCOM2, BCM5478),
138 	MII_PHY_DESC(BROADCOM2, BCM5488),
139 	MII_PHY_DESC(BROADCOM2, BCM5482),
140 	MII_PHY_DESC(BROADCOM2, BCM5708S),
141 	MII_PHY_DESC(BROADCOM2, BCM5709C),
142 	MII_PHY_DESC(BROADCOM2, BCM5709S),
143 	MII_PHY_DESC(BROADCOM2, BCM5709CAX),
144 	MII_PHY_DESC(BROADCOM2, BCM5722),
145 	MII_PHY_DESC(BROADCOM2, BCM5755),
146 	MII_PHY_DESC(BROADCOM2, BCM5754),
147 	MII_PHY_DESC(BROADCOM2, BCM5761),
148 	MII_PHY_DESC(BROADCOM2, BCM5784),
149 #ifdef notyet	/* better handled by ukphy(4) until WARs are implemented */
150 	MII_PHY_DESC(BROADCOM2, BCM5785),
151 #endif
152 	MII_PHY_DESC(BROADCOM3, BCM54616S),
153 	MII_PHY_DESC(BROADCOM3, BCM54618SE),
154 	MII_PHY_DESC(BROADCOM3, BCM5717C),
155 	MII_PHY_DESC(BROADCOM3, BCM5719C),
156 	MII_PHY_DESC(BROADCOM3, BCM5720C),
157 	MII_PHY_DESC(BROADCOM3, BCM57765),
158 	MII_PHY_DESC(BROADCOM3, BCM57780),
159 	MII_PHY_DESC(BROADCOM4, BCM54213PE),
160 	MII_PHY_DESC(BROADCOM4, BCM5725C),
161 	MII_PHY_DESC(xxBROADCOM_ALT1, BCM5906),
162 	MII_PHY_END
163 };
164 
165 static const struct mii_phy_funcs brgphy_funcs = {
166 	brgphy_service,
167 	brgphy_status,
168 	brgphy_reset
169 };
170 
171 static const struct hs21_type {
172 	const uint32_t id;
173 	const char *prod;
174 } hs21_type_lists[] = {
175 	{ 0x57081021, "IBM eServer BladeCenter HS21" },
176 	{ 0x57081011, "IBM eServer BladeCenter HS21 -[8853PAU]-" },
177 };
178 
179 static int
180 detect_hs21(struct bce_softc *bce_sc)
181 {
182 	char *sysenv;
183 	int found, i;
184 
185 	found = 0;
186 	sysenv = kern_getenv("smbios.system.product");
187 	if (sysenv == NULL)
188 		return (found);
189 	for (i = 0; i < nitems(hs21_type_lists); i++) {
190 		if (bce_sc->bce_chipid == hs21_type_lists[i].id &&
191 		    strncmp(sysenv, hs21_type_lists[i].prod,
192 		    strlen(hs21_type_lists[i].prod)) == 0) {
193 			found++;
194 			break;
195 		}
196 	}
197 	freeenv(sysenv);
198 	return (found);
199 }
200 
201 /* Search for our PHY in the list of known PHYs */
202 static int
203 brgphy_probe(device_t dev)
204 {
205 
206 	return (mii_phy_dev_probe(dev, brgphys, BUS_PROBE_DEFAULT));
207 }
208 
209 /* Attach the PHY to the MII bus */
210 static int
211 brgphy_attach(device_t dev)
212 {
213 	struct brgphy_softc *bsc;
214 	struct bge_softc *bge_sc = NULL;
215 	struct bce_softc *bce_sc = NULL;
216 	struct mii_softc *sc;
217 
218 	bsc = device_get_softc(dev);
219 	sc = &bsc->mii_sc;
220 
221 	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
222 	    &brgphy_funcs, 0);
223 
224 	bsc->serdes_flags = 0;
225 
226 	/* Find the MAC driver associated with this PHY. */
227 	if (mii_dev_mac_match(dev, "bge"))
228 		bge_sc = mii_dev_mac_softc(dev);
229 	else if (mii_dev_mac_match(dev, "bce"))
230 		bce_sc = mii_dev_mac_softc(dev);
231 
232 	/* Handle any special cases based on the PHY ID */
233 	switch (sc->mii_mpd_oui) {
234 	case MII_OUI_BROADCOM:
235 		switch (sc->mii_mpd_model) {
236 		case MII_MODEL_BROADCOM_BCM5706:
237 		case MII_MODEL_BROADCOM_BCM5714:
238 			/*
239 			 * The 5464 PHY used in the 5706 supports both copper
240 			 * and fiber interfaces over GMII.  Need to check the
241 			 * shadow registers to see which mode is actually
242 			 * in effect, and therefore whether we have 5706C or
243 			 * 5706S.
244 			 */
245 			PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
246 				BRGPHY_SHADOW_1C_MODE_CTRL);
247 			if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
248 				BRGPHY_SHADOW_1C_ENA_1000X) {
249 				bsc->serdes_flags |= BRGPHY_5706S;
250 				sc->mii_flags |= MIIF_HAVEFIBER;
251 			}
252 			break;
253 		}
254 		break;
255 	case MII_OUI_BROADCOM2:
256 		switch (sc->mii_mpd_model) {
257 		case MII_MODEL_BROADCOM2_BCM5708S:
258 			bsc->serdes_flags |= BRGPHY_5708S;
259 			sc->mii_flags |= MIIF_HAVEFIBER;
260 			break;
261 		case MII_MODEL_BROADCOM2_BCM5709S:
262 			/*
263 			 * XXX
264 			 * 5720S and 5709S shares the same PHY id.
265 			 * Assume 5720S PHY if parent device is bge(4).
266 			 */
267 			if (bge_sc != NULL)
268 				bsc->serdes_flags |= BRGPHY_5708S;
269 			else
270 				bsc->serdes_flags |= BRGPHY_5709S;
271 			sc->mii_flags |= MIIF_HAVEFIBER;
272 			break;
273 		}
274 		break;
275 	}
276 
277 	PHY_RESET(sc);
278 
279 	/* Read the PHY's capabilities. */
280 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
281 	if (sc->mii_capabilities & BMSR_EXTSTAT)
282 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
283 	device_printf(dev, " ");
284 
285 	/* Add the supported media types */
286 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
287 		mii_phy_add_media(sc);
288 		printf("\n");
289 	} else {
290 		sc->mii_anegticks = MII_ANEGTICKS_GIGE;
291 		ifmedia_add(&sc->mii_pdata->mii_media,
292 		    IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
293 		    0, NULL);
294 		printf("1000baseSX-FDX, ");
295 		/*
296 		 * 2.5G support is a software enabled feature
297 		 * on the 5708S and 5709S.
298 		 */
299 		if (bce_sc && (bce_sc->bce_phy_flags &
300 		    BCE_PHY_2_5G_CAPABLE_FLAG)) {
301 			ifmedia_add(&sc->mii_pdata->mii_media,
302 			    IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX,
303 			    sc->mii_inst), 0, NULL);
304 			printf("2500baseSX-FDX, ");
305 		} else if ((bsc->serdes_flags & BRGPHY_5708S) && bce_sc &&
306 		    (detect_hs21(bce_sc) != 0)) {
307 			/*
308 			 * There appears to be certain silicon revision
309 			 * in IBM HS21 blades that is having issues with
310 			 * this driver wating for the auto-negotiation to
311 			 * complete. This happens with a specific chip id
312 			 * only and when the 1000baseSX-FDX is the only
313 			 * mode. Workaround this issue since it's unlikely
314 			 * to be ever addressed.
315 			 */
316 			printf("auto-neg workaround, ");
317 			bsc->serdes_flags |= BRGPHY_NOANWAIT;
318 		}
319 		ifmedia_add(&sc->mii_pdata->mii_media, IFM_MAKEWORD(IFM_ETHER,
320 		    IFM_AUTO, 0, sc->mii_inst), 0, NULL);
321 		printf("auto\n");
322 	}
323 
324 	MIIBUS_MEDIAINIT(sc->mii_dev);
325 	return (0);
326 }
327 
328 static int
329 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
330 {
331 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
332 	int val;
333 
334 	switch (cmd) {
335 	case MII_POLLSTAT:
336 		break;
337 	case MII_MEDIACHG:
338 		/* Todo: Why is this here?  Is it really needed? */
339 		PHY_RESET(sc);	/* XXX hardware bug work-around */
340 
341 		switch (IFM_SUBTYPE(ife->ifm_media)) {
342 		case IFM_AUTO:
343 			brgphy_mii_phy_auto(sc, ife->ifm_media);
344 			break;
345 		case IFM_2500_SX:
346 		case IFM_1000_SX:
347 		case IFM_1000_T:
348 		case IFM_100_TX:
349 		case IFM_10_T:
350 			brgphy_setmedia(sc, ife->ifm_media);
351 			break;
352 		default:
353 			return (EINVAL);
354 		}
355 		break;
356 	case MII_TICK:
357 		/* Bail if autoneg isn't in process. */
358 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
359 			sc->mii_ticks = 0;
360 			break;
361 		}
362 
363 		/*
364 		 * Check to see if we have link.  If we do, we don't
365 		 * need to restart the autonegotiation process.
366 		 */
367 		val = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
368 		if (val & BMSR_LINK) {
369 			sc->mii_ticks = 0;	/* Reset autoneg timer. */
370 			break;
371 		}
372 
373 		/* Announce link loss right after it happens. */
374 		if (sc->mii_ticks++ == 0)
375 			break;
376 
377 		/* Only retry autonegotiation every mii_anegticks seconds. */
378 		if (sc->mii_ticks <= sc->mii_anegticks)
379 			break;
380 
381 		/* Retry autonegotiation */
382 		sc->mii_ticks = 0;
383 		brgphy_mii_phy_auto(sc, ife->ifm_media);
384 		break;
385 	}
386 
387 	/* Update the media status. */
388 	PHY_STATUS(sc);
389 
390 	/*
391 	 * Callback if something changed. Note that we need to poke
392 	 * the DSP on the Broadcom PHYs if the media changes.
393 	 */
394 	if (sc->mii_media_active != mii->mii_media_active ||
395 	    sc->mii_media_status != mii->mii_media_status ||
396 	    cmd == MII_MEDIACHG) {
397 		switch (sc->mii_mpd_oui) {
398 		case MII_OUI_BROADCOM:
399 			switch (sc->mii_mpd_model) {
400 			case MII_MODEL_BROADCOM_BCM5400:
401 				bcm5401_load_dspcode(sc);
402 				break;
403 			case MII_MODEL_BROADCOM_BCM5401:
404 				if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
405 					bcm5401_load_dspcode(sc);
406 				break;
407 			case MII_MODEL_BROADCOM_BCM5411:
408 				bcm5411_load_dspcode(sc);
409 				break;
410 			case MII_MODEL_BROADCOM_BCM54K2:
411 				bcm54k2_load_dspcode(sc);
412 				break;
413 			}
414 			break;
415 		case MII_OUI_BROADCOM4:
416 			switch (sc->mii_mpd_model) {
417 			case MII_MODEL_BROADCOM4_BCM54213PE:
418 				brgphy_bcm54xx_clock_delay(sc);
419 				break;
420 			}
421 		}
422 	}
423 	mii_phy_update(sc, cmd);
424 	return (0);
425 }
426 
427 /****************************************************************************/
428 /* Sets the PHY link speed.                                                 */
429 /*                                                                          */
430 /* Returns:                                                                 */
431 /*   None                                                                   */
432 /****************************************************************************/
433 static void
434 brgphy_setmedia(struct mii_softc *sc, int media)
435 {
436 	int bmcr = 0, gig;
437 
438 	switch (IFM_SUBTYPE(media)) {
439 	case IFM_2500_SX:
440 		break;
441 	case IFM_1000_SX:
442 	case IFM_1000_T:
443 		bmcr = BRGPHY_S1000;
444 		break;
445 	case IFM_100_TX:
446 		bmcr = BRGPHY_S100;
447 		break;
448 	case IFM_10_T:
449 	default:
450 		bmcr = BRGPHY_S10;
451 		break;
452 	}
453 
454 	if ((media & IFM_FDX) != 0) {
455 		bmcr |= BRGPHY_BMCR_FDX;
456 		gig = BRGPHY_1000CTL_AFD;
457 	} else {
458 		gig = BRGPHY_1000CTL_AHD;
459 	}
460 
461 	/* Force loopback to disconnect PHY from Ethernet medium. */
462 	brgphy_enable_loopback(sc);
463 
464 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
465 	PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
466 
467 	if (IFM_SUBTYPE(media) != IFM_1000_T &&
468 	    IFM_SUBTYPE(media) != IFM_1000_SX) {
469 		PHY_WRITE(sc, BRGPHY_MII_BMCR, bmcr);
470 		return;
471 	}
472 
473 	if (IFM_SUBTYPE(media) == IFM_1000_T) {
474 		gig |= BRGPHY_1000CTL_MSE;
475 		if ((media & IFM_ETH_MASTER) != 0)
476 			gig |= BRGPHY_1000CTL_MSC;
477 	}
478 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
479 	PHY_WRITE(sc, BRGPHY_MII_BMCR,
480 	    bmcr | BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
481 }
482 
483 /****************************************************************************/
484 /* Set the media status based on the PHY settings.                          */
485 /*                                                                          */
486 /* Returns:                                                                 */
487 /*   None                                                                   */
488 /****************************************************************************/
489 static void
490 brgphy_status(struct mii_softc *sc)
491 {
492 	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
493 	struct mii_data *mii = sc->mii_pdata;
494 	int aux, bmcr, bmsr, val, xstat;
495 	u_int flowstat;
496 
497 	mii->mii_media_status = IFM_AVALID;
498 	mii->mii_media_active = IFM_ETHER;
499 
500 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR) | PHY_READ(sc, BRGPHY_MII_BMSR);
501 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
502 
503 	if (bmcr & BRGPHY_BMCR_LOOP) {
504 		mii->mii_media_active |= IFM_LOOP;
505 	}
506 
507 	if ((bmcr & BRGPHY_BMCR_AUTOEN) &&
508 	    (bmsr & BRGPHY_BMSR_ACOMP) == 0 &&
509 	    (bsc->serdes_flags & BRGPHY_NOANWAIT) == 0) {
510 		/* Erg, still trying, I guess... */
511 		mii->mii_media_active |= IFM_NONE;
512 		return;
513 	}
514 
515 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
516 		/*
517 		 * NB: reading the ANAR, ANLPAR or 1000STS after the AUXSTS
518 		 * wedges at least the PHY of BCM5704 (but not others).
519 		 */
520 		flowstat = mii_phy_flowstatus(sc);
521 		xstat = PHY_READ(sc, BRGPHY_MII_1000STS);
522 		aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
523 
524 		/* If copper link is up, get the negotiated speed/duplex. */
525 		if (aux & BRGPHY_AUXSTS_LINK) {
526 			mii->mii_media_status |= IFM_ACTIVE;
527 			switch (aux & BRGPHY_AUXSTS_AN_RES) {
528 			case BRGPHY_RES_1000FD:
529 				mii->mii_media_active |= IFM_1000_T | IFM_FDX; 	break;
530 			case BRGPHY_RES_1000HD:
531 				mii->mii_media_active |= IFM_1000_T | IFM_HDX; 	break;
532 			case BRGPHY_RES_100FD:
533 				mii->mii_media_active |= IFM_100_TX | IFM_FDX; break;
534 			case BRGPHY_RES_100T4:
535 				mii->mii_media_active |= IFM_100_T4; break;
536 			case BRGPHY_RES_100HD:
537 				mii->mii_media_active |= IFM_100_TX | IFM_HDX; 	break;
538 			case BRGPHY_RES_10FD:
539 				mii->mii_media_active |= IFM_10_T | IFM_FDX; break;
540 			case BRGPHY_RES_10HD:
541 				mii->mii_media_active |= IFM_10_T | IFM_HDX; break;
542 			default:
543 				mii->mii_media_active |= IFM_NONE; break;
544 			}
545 
546 			if ((mii->mii_media_active & IFM_FDX) != 0)
547 				mii->mii_media_active |= flowstat;
548 
549 			if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T &&
550 			    (xstat & BRGPHY_1000STS_MSR) != 0)
551 				mii->mii_media_active |= IFM_ETH_MASTER;
552 		}
553 	} else {
554 		/* Todo: Add support for flow control. */
555 		/* If serdes link is up, get the negotiated speed/duplex. */
556 		if (bmsr & BRGPHY_BMSR_LINK) {
557 			mii->mii_media_status |= IFM_ACTIVE;
558 		}
559 
560 		/* Check the link speed/duplex based on the PHY type. */
561 		if (bsc->serdes_flags & BRGPHY_5706S) {
562 			mii->mii_media_active |= IFM_1000_SX;
563 
564 			/* If autoneg enabled, read negotiated duplex settings */
565 			if (bmcr & BRGPHY_BMCR_AUTOEN) {
566 				val = PHY_READ(sc, BRGPHY_SERDES_ANAR) & PHY_READ(sc, BRGPHY_SERDES_ANLPAR);
567 				if (val & BRGPHY_SERDES_ANAR_FDX)
568 					mii->mii_media_active |= IFM_FDX;
569 				else
570 					mii->mii_media_active |= IFM_HDX;
571 			}
572 		} else if (bsc->serdes_flags & BRGPHY_5708S) {
573 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
574 			xstat = PHY_READ(sc, BRGPHY_5708S_PG0_1000X_STAT1);
575 
576 			/* Check for MRBE auto-negotiated speed results. */
577 			switch (xstat & BRGPHY_5708S_PG0_1000X_STAT1_SPEED_MASK) {
578 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_10:
579 				mii->mii_media_active |= IFM_10_FL; break;
580 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_100:
581 				mii->mii_media_active |= IFM_100_FX; break;
582 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_1G:
583 				mii->mii_media_active |= IFM_1000_SX; break;
584 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_25G:
585 				mii->mii_media_active |= IFM_2500_SX; break;
586 			}
587 
588 			/* Check for MRBE auto-negotiated duplex results. */
589 			if (xstat & BRGPHY_5708S_PG0_1000X_STAT1_FDX)
590 				mii->mii_media_active |= IFM_FDX;
591 			else
592 				mii->mii_media_active |= IFM_HDX;
593 		} else if (bsc->serdes_flags & BRGPHY_5709S) {
594 			/* Select GP Status Block of the AN MMD, get autoneg results. */
595 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_GP_STATUS);
596 			xstat = PHY_READ(sc, BRGPHY_GP_STATUS_TOP_ANEG_STATUS);
597 
598 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
599 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
600 
601 			/* Check for MRBE auto-negotiated speed results. */
602 			switch (xstat & BRGPHY_GP_STATUS_TOP_ANEG_SPEED_MASK) {
603 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_10:
604 					mii->mii_media_active |= IFM_10_FL; break;
605 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_100:
606 					mii->mii_media_active |= IFM_100_FX; break;
607 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_1G:
608 					mii->mii_media_active |= IFM_1000_SX; break;
609 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_25G:
610 					mii->mii_media_active |= IFM_2500_SX; break;
611 			}
612 
613 			/* Check for MRBE auto-negotiated duplex results. */
614 			if (xstat & BRGPHY_GP_STATUS_TOP_ANEG_FDX)
615 				mii->mii_media_active |= IFM_FDX;
616 			else
617 				mii->mii_media_active |= IFM_HDX;
618 		}
619 	}
620 }
621 
622 static void
623 brgphy_mii_phy_auto(struct mii_softc *sc, int media)
624 {
625 	int anar, ktcr = 0;
626 
627 	PHY_RESET(sc);
628 
629 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
630 		anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
631 		if ((media & IFM_FLOW) != 0 ||
632 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
633 			anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP;
634 		PHY_WRITE(sc, BRGPHY_MII_ANAR, anar);
635 		ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
636 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5701)
637 			ktcr |= BRGPHY_1000CTL_MSE | BRGPHY_1000CTL_MSC;
638 		PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
639 		PHY_READ(sc, BRGPHY_MII_1000CTL);
640 	} else {
641 		anar = BRGPHY_SERDES_ANAR_FDX | BRGPHY_SERDES_ANAR_HDX;
642 		if ((media & IFM_FLOW) != 0 ||
643 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
644 			anar |= BRGPHY_SERDES_ANAR_BOTH_PAUSE;
645 		PHY_WRITE(sc, BRGPHY_SERDES_ANAR, anar);
646 	}
647 
648 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN |
649 	    BRGPHY_BMCR_STARTNEG);
650 	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
651 }
652 
653 /* Enable loopback to force the link down. */
654 static void
655 brgphy_enable_loopback(struct mii_softc *sc)
656 {
657 	int i;
658 
659 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
660 	for (i = 0; i < 15000; i++) {
661 		if (!(PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_LINK))
662 			break;
663 		DELAY(10);
664 	}
665 }
666 
667 /* Turn off tap power management on 5401. */
668 static void
669 bcm5401_load_dspcode(struct mii_softc *sc)
670 {
671 	static const struct {
672 		int		reg;
673 		uint16_t	val;
674 	} dspcode[] = {
675 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
676 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
677 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
678 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
679 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
680 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
681 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
682 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
683 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
684 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
685 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
686 		{ 0,				0 },
687 	};
688 	int i;
689 
690 	for (i = 0; dspcode[i].reg != 0; i++)
691 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
692 	DELAY(40);
693 }
694 
695 static void
696 bcm5411_load_dspcode(struct mii_softc *sc)
697 {
698 	static const struct {
699 		int		reg;
700 		uint16_t	val;
701 	} dspcode[] = {
702 		{ 0x1c,				0x8c23 },
703 		{ 0x1c,				0x8ca3 },
704 		{ 0x1c,				0x8c23 },
705 		{ 0,				0 },
706 	};
707 	int i;
708 
709 	for (i = 0; dspcode[i].reg != 0; i++)
710 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
711 }
712 
713 void
714 bcm54k2_load_dspcode(struct mii_softc *sc)
715 {
716 	static const struct {
717 		int		reg;
718 		uint16_t	val;
719 	} dspcode[] = {
720 		{ 4,				0x01e1 },
721 		{ 9,				0x0300 },
722 		{ 0,				0 },
723 	};
724 	int i;
725 
726 	for (i = 0; dspcode[i].reg != 0; i++)
727 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
728 
729 }
730 
731 static void
732 brgphy_fixup_5704_a0_bug(struct mii_softc *sc)
733 {
734 	static const struct {
735 		int		reg;
736 		uint16_t	val;
737 	} dspcode[] = {
738 		{ 0x1c,				0x8d68 },
739 		{ 0x1c,				0x8d68 },
740 		{ 0,				0 },
741 	};
742 	int i;
743 
744 	for (i = 0; dspcode[i].reg != 0; i++)
745 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
746 }
747 
748 static void
749 brgphy_fixup_adc_bug(struct mii_softc *sc)
750 {
751 	static const struct {
752 		int		reg;
753 		uint16_t	val;
754 	} dspcode[] = {
755 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
756 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
757 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
758 		{ 0,				0 },
759 	};
760 	int i;
761 
762 	for (i = 0; dspcode[i].reg != 0; i++)
763 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
764 }
765 
766 static void
767 brgphy_fixup_adjust_trim(struct mii_softc *sc)
768 {
769 	static const struct {
770 		int		reg;
771 		uint16_t	val;
772 	} dspcode[] = {
773 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
774 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
775 		{ BRGPHY_MII_DSP_RW_PORT,	0x110b },
776 		{ BRGPHY_MII_TEST1,			0x0014 },
777 		{ BRGPHY_MII_AUXCTL,		0x0400 },
778 		{ 0,				0 },
779 	};
780 	int i;
781 
782 	for (i = 0; dspcode[i].reg != 0; i++)
783 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
784 }
785 
786 static void
787 brgphy_fixup_ber_bug(struct mii_softc *sc)
788 {
789 	static const struct {
790 		int		reg;
791 		uint16_t	val;
792 	} dspcode[] = {
793 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
794 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
795 		{ BRGPHY_MII_DSP_RW_PORT,	0x310b },
796 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
797 		{ BRGPHY_MII_DSP_RW_PORT,	0x9506 },
798 		{ BRGPHY_MII_DSP_ADDR_REG,	0x401f },
799 		{ BRGPHY_MII_DSP_RW_PORT,	0x14e2 },
800 		{ BRGPHY_MII_AUXCTL,		0x0400 },
801 		{ 0,				0 },
802 	};
803 	int i;
804 
805 	for (i = 0; dspcode[i].reg != 0; i++)
806 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
807 }
808 
809 static void
810 brgphy_fixup_crc_bug(struct mii_softc *sc)
811 {
812 	static const struct {
813 		int		reg;
814 		uint16_t	val;
815 	} dspcode[] = {
816 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a75 },
817 		{ 0x1c,				0x8c68 },
818 		{ 0x1c,				0x8d68 },
819 		{ 0x1c,				0x8c68 },
820 		{ 0,				0 },
821 	};
822 	int i;
823 
824 	for (i = 0; dspcode[i].reg != 0; i++)
825 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
826 }
827 
828 static void
829 brgphy_fixup_jitter_bug(struct mii_softc *sc)
830 {
831 	static const struct {
832 		int		reg;
833 		uint16_t	val;
834 	} dspcode[] = {
835 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
836 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
837 		{ BRGPHY_MII_DSP_RW_PORT,	0x010b },
838 		{ BRGPHY_MII_AUXCTL,		0x0400 },
839 		{ 0,				0 },
840 	};
841 	int i;
842 
843 	for (i = 0; dspcode[i].reg != 0; i++)
844 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
845 }
846 
847 static void
848 brgphy_fixup_disable_early_dac(struct mii_softc *sc)
849 {
850 	uint32_t val;
851 
852 	PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x0f08);
853 	val = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
854 	val &= ~(1 << 8);
855 	PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, val);
856 
857 }
858 
859 static void
860 brgphy_ethernet_wirespeed(struct mii_softc *sc)
861 {
862 	uint32_t	val;
863 
864 	/* Enable Ethernet@WireSpeed. */
865 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
866 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
867 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
868 }
869 
870 static void
871 brgphy_bcm54xx_clock_delay(struct mii_softc *sc)
872 {
873 	uint16_t val;
874 
875 	if (!(sc->mii_flags & (MIIF_RX_DELAY | MIIF_TX_DELAY)))
876 		/* Adjusting the clocks in rgmii mode causes packet losses. */
877 		return;
878 
879 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_SHADOW_MISC |
880 	    BRGPHY_AUXCTL_SHADOW_MISC << BRGPHY_AUXCTL_MISC_READ_SHIFT);
881 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
882 	val &= BRGPHY_AUXCTL_MISC_DATA_MASK;
883 	if (sc->mii_flags & MIIF_RX_DELAY)
884 		val |= BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
885 	else
886 		val &= ~BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
887 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_MISC_WRITE_EN |
888 	    BRGPHY_AUXCTL_SHADOW_MISC | val);
889 
890 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_CLK_CTRL);
891 	val = PHY_READ(sc, BRGPHY_MII_SHADOW_1C);
892 	val &= BRGPHY_SHADOW_1C_DATA_MASK;
893 	if (sc->mii_flags & MIIF_TX_DELAY)
894 		val |= BRGPHY_SHADOW_1C_GTXCLK_EN;
895 	else
896 		val &= ~BRGPHY_SHADOW_1C_GTXCLK_EN;
897 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_WRITE_EN |
898 	    BRGPHY_SHADOW_1C_CLK_CTRL | val);
899 }
900 
901 static void
902 brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
903 {
904 	uint32_t	val;
905 
906 	/* Set or clear jumbo frame settings in the PHY. */
907 	if (mtu > ETHER_MAX_LEN) {
908 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5401) {
909 			/* BCM5401 PHY cannot read-modify-write. */
910 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
911 		} else {
912 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
913 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
914 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
915 			    val | BRGPHY_AUXCTL_LONG_PKT);
916 		}
917 
918 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
919 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
920 		    val | BRGPHY_PHY_EXTCTL_HIGH_LA);
921 	} else {
922 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
923 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
924 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
925 		    val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
926 
927 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
928 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
929 			val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
930 	}
931 }
932 
933 static void
934 brgphy_reset(struct mii_softc *sc)
935 {
936 	struct bge_softc *bge_sc = NULL;
937 	struct bce_softc *bce_sc = NULL;
938 	if_t ifp;
939 	int i, val;
940 
941 	/*
942 	 * Perform a reset.  Note that at least some Broadcom PHYs default to
943 	 * being powered down as well as isolated after a reset but don't work
944 	 * if one or both of these bits are cleared.  However, they just work
945 	 * fine if both bits remain set, so we don't use mii_phy_reset() here.
946 	 */
947 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET);
948 
949 	/* Wait 100ms for it to complete. */
950 	for (i = 0; i < 100; i++) {
951 		if ((PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_RESET) == 0)
952 			break;
953 		DELAY(1000);
954 	}
955 
956 	/* Handle any PHY specific procedures following the reset. */
957 	switch (sc->mii_mpd_oui) {
958 	case MII_OUI_BROADCOM:
959 		switch (sc->mii_mpd_model) {
960 		case MII_MODEL_BROADCOM_BCM5400:
961 			bcm5401_load_dspcode(sc);
962 			break;
963 		case MII_MODEL_BROADCOM_BCM5401:
964 			if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
965 				bcm5401_load_dspcode(sc);
966 			break;
967 		case MII_MODEL_BROADCOM_BCM5411:
968 			bcm5411_load_dspcode(sc);
969 			break;
970 		case MII_MODEL_BROADCOM_BCM54K2:
971 			bcm54k2_load_dspcode(sc);
972 			break;
973 		}
974 		break;
975 	case MII_OUI_BROADCOM3:
976 		switch (sc->mii_mpd_model) {
977 		case MII_MODEL_BROADCOM3_BCM5717C:
978 		case MII_MODEL_BROADCOM3_BCM5719C:
979 		case MII_MODEL_BROADCOM3_BCM5720C:
980 		case MII_MODEL_BROADCOM3_BCM57765:
981 			return;
982 		}
983 		break;
984 	case MII_OUI_BROADCOM4:
985 		return;
986 	}
987 
988 	ifp = sc->mii_pdata->mii_ifp;
989 
990 	/* Find the driver associated with this PHY. */
991 	if (mii_phy_mac_match(sc, "bge"))
992 		bge_sc = mii_phy_mac_softc(sc);
993 	else if (mii_phy_mac_match(sc, "bce"))
994 		bce_sc = mii_phy_mac_softc(sc);
995 
996 	if (bge_sc) {
997 		/* Fix up various bugs */
998 		if (bge_sc->bge_phy_flags & BGE_PHY_5704_A0_BUG)
999 			brgphy_fixup_5704_a0_bug(sc);
1000 		if (bge_sc->bge_phy_flags & BGE_PHY_ADC_BUG)
1001 			brgphy_fixup_adc_bug(sc);
1002 		if (bge_sc->bge_phy_flags & BGE_PHY_ADJUST_TRIM)
1003 			brgphy_fixup_adjust_trim(sc);
1004 		if (bge_sc->bge_phy_flags & BGE_PHY_BER_BUG)
1005 			brgphy_fixup_ber_bug(sc);
1006 		if (bge_sc->bge_phy_flags & BGE_PHY_CRC_BUG)
1007 			brgphy_fixup_crc_bug(sc);
1008 		if (bge_sc->bge_phy_flags & BGE_PHY_JITTER_BUG)
1009 			brgphy_fixup_jitter_bug(sc);
1010 
1011 		if (bge_sc->bge_flags & BGE_FLAG_JUMBO)
1012 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1013 
1014 		if ((bge_sc->bge_phy_flags & BGE_PHY_NO_WIRESPEED) == 0)
1015 			brgphy_ethernet_wirespeed(sc);
1016 
1017 		/* Enable Link LED on Dell boxes */
1018 		if (bge_sc->bge_phy_flags & BGE_PHY_NO_3LED) {
1019 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
1020 			    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) &
1021 			    ~BRGPHY_PHY_EXTCTL_3_LED);
1022 		}
1023 
1024 		/* Adjust output voltage (From Linux driver) */
1025 		if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5906)
1026 			PHY_WRITE(sc, BRGPHY_MII_EPHY_PTEST, 0x12);
1027 	} else if (bce_sc) {
1028 		if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5708 &&
1029 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1030 			/* Store autoneg capabilities/results in digital block (Page 0) */
1031 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG3_PG2);
1032 			PHY_WRITE(sc, BRGPHY_5708S_PG2_DIGCTL_3_0,
1033 				BRGPHY_5708S_PG2_DIGCTL_3_0_USE_IEEE);
1034 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
1035 
1036 			/* Enable fiber mode and autodetection */
1037 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL1,
1038 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL1) |
1039 				BRGPHY_5708S_PG0_1000X_CTL1_AUTODET_EN |
1040 				BRGPHY_5708S_PG0_1000X_CTL1_FIBER_MODE);
1041 
1042 			/* Enable parallel detection */
1043 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL2,
1044 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL2) |
1045 				BRGPHY_5708S_PG0_1000X_CTL2_PAR_DET_EN);
1046 
1047 			/* Advertise 2.5G support through next page during autoneg */
1048 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1049 				PHY_WRITE(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1,
1050 					PHY_READ(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1) |
1051 					BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G);
1052 
1053 			/* Increase TX signal amplitude */
1054 			if ((BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_A0) ||
1055 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B0) ||
1056 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B1)) {
1057 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1058 					BRGPHY_5708S_TX_MISC_PG5);
1059 				PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL1,
1060 					PHY_READ(sc, BRGPHY_5708S_PG5_TXACTL1) & ~0x30);
1061 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1062 					BRGPHY_5708S_DIG_PG0);
1063 			}
1064 
1065 			/* Backplanes use special driver/pre-driver/pre-emphasis values. */
1066 			if ((bce_sc->bce_shared_hw_cfg & BCE_SHARED_HW_CFG_PHY_BACKPLANE) &&
1067 				(bce_sc->bce_port_hw_cfg & BCE_PORT_HW_CFG_CFG_TXCTL3_MASK)) {
1068 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1069 						BRGPHY_5708S_TX_MISC_PG5);
1070 					PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL3,
1071 						bce_sc->bce_port_hw_cfg &
1072 						BCE_PORT_HW_CFG_CFG_TXCTL3_MASK);
1073 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1074 						BRGPHY_5708S_DIG_PG0);
1075 			}
1076 		} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709 &&
1077 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1078 			/* Select the SerDes Digital block of the AN MMD. */
1079 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_SERDES_DIG);
1080 			val = PHY_READ(sc, BRGPHY_SERDES_DIG_1000X_CTL1);
1081 			val &= ~BRGPHY_SD_DIG_1000X_CTL1_AUTODET;
1082 			val |= BRGPHY_SD_DIG_1000X_CTL1_FIBER;
1083 			PHY_WRITE(sc, BRGPHY_SERDES_DIG_1000X_CTL1, val);
1084 
1085 			/* Select the Over 1G block of the AN MMD. */
1086 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_OVER_1G);
1087 
1088 			/* Enable autoneg "Next Page" to advertise 2.5G support. */
1089 			val = PHY_READ(sc, BRGPHY_OVER_1G_UNFORMAT_PG1);
1090 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1091 				val |= BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1092 			else
1093 				val &= ~BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1094 			PHY_WRITE(sc, BRGPHY_OVER_1G_UNFORMAT_PG1, val);
1095 
1096 			/* Select the Multi-Rate Backplane Ethernet block of the AN MMD. */
1097 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_MRBE);
1098 
1099 			/* Enable MRBE speed autoneg. */
1100 			val = PHY_READ(sc, BRGPHY_MRBE_MSG_PG5_NP);
1101 			val |= BRGPHY_MRBE_MSG_PG5_NP_MBRE |
1102 			    BRGPHY_MRBE_MSG_PG5_NP_T2;
1103 			PHY_WRITE(sc, BRGPHY_MRBE_MSG_PG5_NP, val);
1104 
1105 			/* Select the Clause 73 User B0 block of the AN MMD. */
1106 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_CL73_USER_B0);
1107 
1108 			/* Enable MRBE speed autoneg. */
1109 			PHY_WRITE(sc, BRGPHY_CL73_USER_B0_MBRE_CTL1,
1110 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_NP_AFT_BP |
1111 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_STA_MGR |
1112 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_ANEG);
1113 
1114 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
1115 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
1116         } else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709) {
1117 			if ((BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Ax) ||
1118 				(BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Bx))
1119 				brgphy_fixup_disable_early_dac(sc);
1120 
1121 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1122 			brgphy_ethernet_wirespeed(sc);
1123 		} else {
1124 			brgphy_fixup_ber_bug(sc);
1125 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1126 			brgphy_ethernet_wirespeed(sc);
1127 		}
1128 	}
1129 }
1130