xref: /freebsd/sys/dev/mii/brgphy.c (revision 535af610)
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, BCM54616S),
155 	MII_PHY_DESC(BROADCOM3, BCM54618SE),
156 	MII_PHY_DESC(BROADCOM3, BCM5717C),
157 	MII_PHY_DESC(BROADCOM3, BCM5719C),
158 	MII_PHY_DESC(BROADCOM3, BCM5720C),
159 	MII_PHY_DESC(BROADCOM3, BCM57765),
160 	MII_PHY_DESC(BROADCOM3, BCM57780),
161 	MII_PHY_DESC(BROADCOM4, BCM54213PE),
162 	MII_PHY_DESC(BROADCOM4, BCM5725C),
163 	MII_PHY_DESC(xxBROADCOM_ALT1, BCM5906),
164 	MII_PHY_END
165 };
166 
167 static const struct mii_phy_funcs brgphy_funcs = {
168 	brgphy_service,
169 	brgphy_status,
170 	brgphy_reset
171 };
172 
173 static const struct hs21_type {
174 	const uint32_t id;
175 	const char *prod;
176 } hs21_type_lists[] = {
177 	{ 0x57081021, "IBM eServer BladeCenter HS21" },
178 	{ 0x57081011, "IBM eServer BladeCenter HS21 -[8853PAU]-" },
179 };
180 
181 static int
182 detect_hs21(struct bce_softc *bce_sc)
183 {
184 	char *sysenv;
185 	int found, i;
186 
187 	found = 0;
188 	sysenv = kern_getenv("smbios.system.product");
189 	if (sysenv == NULL)
190 		return (found);
191 	for (i = 0; i < nitems(hs21_type_lists); i++) {
192 		if (bce_sc->bce_chipid == hs21_type_lists[i].id &&
193 		    strncmp(sysenv, hs21_type_lists[i].prod,
194 		    strlen(hs21_type_lists[i].prod)) == 0) {
195 			found++;
196 			break;
197 		}
198 	}
199 	freeenv(sysenv);
200 	return (found);
201 }
202 
203 /* Search for our PHY in the list of known PHYs */
204 static int
205 brgphy_probe(device_t dev)
206 {
207 
208 	return (mii_phy_dev_probe(dev, brgphys, BUS_PROBE_DEFAULT));
209 }
210 
211 /* Attach the PHY to the MII bus */
212 static int
213 brgphy_attach(device_t dev)
214 {
215 	struct brgphy_softc *bsc;
216 	struct bge_softc *bge_sc = NULL;
217 	struct bce_softc *bce_sc = NULL;
218 	struct mii_softc *sc;
219 
220 	bsc = device_get_softc(dev);
221 	sc = &bsc->mii_sc;
222 
223 	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
224 	    &brgphy_funcs, 0);
225 
226 	bsc->serdes_flags = 0;
227 
228 	/* Find the MAC driver associated with this PHY. */
229 	if (mii_dev_mac_match(dev, "bge"))
230 		bge_sc = mii_dev_mac_softc(dev);
231 	else if (mii_dev_mac_match(dev, "bce"))
232 		bce_sc = mii_dev_mac_softc(dev);
233 
234 	/* Handle any special cases based on the PHY ID */
235 	switch (sc->mii_mpd_oui) {
236 	case MII_OUI_BROADCOM:
237 		switch (sc->mii_mpd_model) {
238 		case MII_MODEL_BROADCOM_BCM5706:
239 		case MII_MODEL_BROADCOM_BCM5714:
240 			/*
241 			 * The 5464 PHY used in the 5706 supports both copper
242 			 * and fiber interfaces over GMII.  Need to check the
243 			 * shadow registers to see which mode is actually
244 			 * in effect, and therefore whether we have 5706C or
245 			 * 5706S.
246 			 */
247 			PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
248 				BRGPHY_SHADOW_1C_MODE_CTRL);
249 			if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
250 				BRGPHY_SHADOW_1C_ENA_1000X) {
251 				bsc->serdes_flags |= BRGPHY_5706S;
252 				sc->mii_flags |= MIIF_HAVEFIBER;
253 			}
254 			break;
255 		}
256 		break;
257 	case MII_OUI_BROADCOM2:
258 		switch (sc->mii_mpd_model) {
259 		case MII_MODEL_BROADCOM2_BCM5708S:
260 			bsc->serdes_flags |= BRGPHY_5708S;
261 			sc->mii_flags |= MIIF_HAVEFIBER;
262 			break;
263 		case MII_MODEL_BROADCOM2_BCM5709S:
264 			/*
265 			 * XXX
266 			 * 5720S and 5709S shares the same PHY id.
267 			 * Assume 5720S PHY if parent device is bge(4).
268 			 */
269 			if (bge_sc != NULL)
270 				bsc->serdes_flags |= BRGPHY_5708S;
271 			else
272 				bsc->serdes_flags |= BRGPHY_5709S;
273 			sc->mii_flags |= MIIF_HAVEFIBER;
274 			break;
275 		}
276 		break;
277 	}
278 
279 	PHY_RESET(sc);
280 
281 	/* Read the PHY's capabilities. */
282 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
283 	if (sc->mii_capabilities & BMSR_EXTSTAT)
284 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
285 	device_printf(dev, " ");
286 
287 	/* Add the supported media types */
288 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
289 		mii_phy_add_media(sc);
290 		printf("\n");
291 	} else {
292 		sc->mii_anegticks = MII_ANEGTICKS_GIGE;
293 		ifmedia_add(&sc->mii_pdata->mii_media,
294 		    IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
295 		    0, NULL);
296 		printf("1000baseSX-FDX, ");
297 		/*
298 		 * 2.5G support is a software enabled feature
299 		 * on the 5708S and 5709S.
300 		 */
301 		if (bce_sc && (bce_sc->bce_phy_flags &
302 		    BCE_PHY_2_5G_CAPABLE_FLAG)) {
303 			ifmedia_add(&sc->mii_pdata->mii_media,
304 			    IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX,
305 			    sc->mii_inst), 0, NULL);
306 			printf("2500baseSX-FDX, ");
307 		} else if ((bsc->serdes_flags & BRGPHY_5708S) && bce_sc &&
308 		    (detect_hs21(bce_sc) != 0)) {
309 			/*
310 			 * There appears to be certain silicon revision
311 			 * in IBM HS21 blades that is having issues with
312 			 * this driver wating for the auto-negotiation to
313 			 * complete. This happens with a specific chip id
314 			 * only and when the 1000baseSX-FDX is the only
315 			 * mode. Workaround this issue since it's unlikely
316 			 * to be ever addressed.
317 			 */
318 			printf("auto-neg workaround, ");
319 			bsc->serdes_flags |= BRGPHY_NOANWAIT;
320 		}
321 		ifmedia_add(&sc->mii_pdata->mii_media, IFM_MAKEWORD(IFM_ETHER,
322 		    IFM_AUTO, 0, sc->mii_inst), 0, NULL);
323 		printf("auto\n");
324 	}
325 
326 	MIIBUS_MEDIAINIT(sc->mii_dev);
327 	return (0);
328 }
329 
330 static int
331 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
332 {
333 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
334 	int val;
335 
336 	switch (cmd) {
337 	case MII_POLLSTAT:
338 		break;
339 	case MII_MEDIACHG:
340 		/* Todo: Why is this here?  Is it really needed? */
341 		PHY_RESET(sc);	/* XXX hardware bug work-around */
342 
343 		switch (IFM_SUBTYPE(ife->ifm_media)) {
344 		case IFM_AUTO:
345 			brgphy_mii_phy_auto(sc, ife->ifm_media);
346 			break;
347 		case IFM_2500_SX:
348 		case IFM_1000_SX:
349 		case IFM_1000_T:
350 		case IFM_100_TX:
351 		case IFM_10_T:
352 			brgphy_setmedia(sc, ife->ifm_media);
353 			break;
354 		default:
355 			return (EINVAL);
356 		}
357 		break;
358 	case MII_TICK:
359 		/* Bail if autoneg isn't in process. */
360 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
361 			sc->mii_ticks = 0;
362 			break;
363 		}
364 
365 		/*
366 		 * Check to see if we have link.  If we do, we don't
367 		 * need to restart the autonegotiation process.
368 		 */
369 		val = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
370 		if (val & BMSR_LINK) {
371 			sc->mii_ticks = 0;	/* Reset autoneg timer. */
372 			break;
373 		}
374 
375 		/* Announce link loss right after it happens. */
376 		if (sc->mii_ticks++ == 0)
377 			break;
378 
379 		/* Only retry autonegotiation every mii_anegticks seconds. */
380 		if (sc->mii_ticks <= sc->mii_anegticks)
381 			break;
382 
383 		/* Retry autonegotiation */
384 		sc->mii_ticks = 0;
385 		brgphy_mii_phy_auto(sc, ife->ifm_media);
386 		break;
387 	}
388 
389 	/* Update the media status. */
390 	PHY_STATUS(sc);
391 
392 	/*
393 	 * Callback if something changed. Note that we need to poke
394 	 * the DSP on the Broadcom PHYs if the media changes.
395 	 */
396 	if (sc->mii_media_active != mii->mii_media_active ||
397 	    sc->mii_media_status != mii->mii_media_status ||
398 	    cmd == MII_MEDIACHG) {
399 		switch (sc->mii_mpd_oui) {
400 		case MII_OUI_BROADCOM:
401 			switch (sc->mii_mpd_model) {
402 			case MII_MODEL_BROADCOM_BCM5400:
403 				bcm5401_load_dspcode(sc);
404 				break;
405 			case MII_MODEL_BROADCOM_BCM5401:
406 				if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
407 					bcm5401_load_dspcode(sc);
408 				break;
409 			case MII_MODEL_BROADCOM_BCM5411:
410 				bcm5411_load_dspcode(sc);
411 				break;
412 			case MII_MODEL_BROADCOM_BCM54K2:
413 				bcm54k2_load_dspcode(sc);
414 				break;
415 			}
416 			break;
417 		case MII_OUI_BROADCOM4:
418 			switch (sc->mii_mpd_model) {
419 			case MII_MODEL_BROADCOM4_BCM54213PE:
420 				brgphy_bcm54xx_clock_delay(sc);
421 				break;
422 			}
423 		}
424 	}
425 	mii_phy_update(sc, cmd);
426 	return (0);
427 }
428 
429 /****************************************************************************/
430 /* Sets the PHY link speed.                                                 */
431 /*                                                                          */
432 /* Returns:                                                                 */
433 /*   None                                                                   */
434 /****************************************************************************/
435 static void
436 brgphy_setmedia(struct mii_softc *sc, int media)
437 {
438 	int bmcr = 0, gig;
439 
440 	switch (IFM_SUBTYPE(media)) {
441 	case IFM_2500_SX:
442 		break;
443 	case IFM_1000_SX:
444 	case IFM_1000_T:
445 		bmcr = BRGPHY_S1000;
446 		break;
447 	case IFM_100_TX:
448 		bmcr = BRGPHY_S100;
449 		break;
450 	case IFM_10_T:
451 	default:
452 		bmcr = BRGPHY_S10;
453 		break;
454 	}
455 
456 	if ((media & IFM_FDX) != 0) {
457 		bmcr |= BRGPHY_BMCR_FDX;
458 		gig = BRGPHY_1000CTL_AFD;
459 	} else {
460 		gig = BRGPHY_1000CTL_AHD;
461 	}
462 
463 	/* Force loopback to disconnect PHY from Ethernet medium. */
464 	brgphy_enable_loopback(sc);
465 
466 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
467 	PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
468 
469 	if (IFM_SUBTYPE(media) != IFM_1000_T &&
470 	    IFM_SUBTYPE(media) != IFM_1000_SX) {
471 		PHY_WRITE(sc, BRGPHY_MII_BMCR, bmcr);
472 		return;
473 	}
474 
475 	if (IFM_SUBTYPE(media) == IFM_1000_T) {
476 		gig |= BRGPHY_1000CTL_MSE;
477 		if ((media & IFM_ETH_MASTER) != 0)
478 			gig |= BRGPHY_1000CTL_MSC;
479 	}
480 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
481 	PHY_WRITE(sc, BRGPHY_MII_BMCR,
482 	    bmcr | BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
483 }
484 
485 /****************************************************************************/
486 /* Set the media status based on the PHY settings.                          */
487 /*                                                                          */
488 /* Returns:                                                                 */
489 /*   None                                                                   */
490 /****************************************************************************/
491 static void
492 brgphy_status(struct mii_softc *sc)
493 {
494 	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
495 	struct mii_data *mii = sc->mii_pdata;
496 	int aux, bmcr, bmsr, val, xstat;
497 	u_int flowstat;
498 
499 	mii->mii_media_status = IFM_AVALID;
500 	mii->mii_media_active = IFM_ETHER;
501 
502 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR) | PHY_READ(sc, BRGPHY_MII_BMSR);
503 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
504 
505 	if (bmcr & BRGPHY_BMCR_LOOP) {
506 		mii->mii_media_active |= IFM_LOOP;
507 	}
508 
509 	if ((bmcr & BRGPHY_BMCR_AUTOEN) &&
510 	    (bmsr & BRGPHY_BMSR_ACOMP) == 0 &&
511 	    (bsc->serdes_flags & BRGPHY_NOANWAIT) == 0) {
512 		/* Erg, still trying, I guess... */
513 		mii->mii_media_active |= IFM_NONE;
514 		return;
515 	}
516 
517 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
518 		/*
519 		 * NB: reading the ANAR, ANLPAR or 1000STS after the AUXSTS
520 		 * wedges at least the PHY of BCM5704 (but not others).
521 		 */
522 		flowstat = mii_phy_flowstatus(sc);
523 		xstat = PHY_READ(sc, BRGPHY_MII_1000STS);
524 		aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
525 
526 		/* If copper link is up, get the negotiated speed/duplex. */
527 		if (aux & BRGPHY_AUXSTS_LINK) {
528 			mii->mii_media_status |= IFM_ACTIVE;
529 			switch (aux & BRGPHY_AUXSTS_AN_RES) {
530 			case BRGPHY_RES_1000FD:
531 				mii->mii_media_active |= IFM_1000_T | IFM_FDX; 	break;
532 			case BRGPHY_RES_1000HD:
533 				mii->mii_media_active |= IFM_1000_T | IFM_HDX; 	break;
534 			case BRGPHY_RES_100FD:
535 				mii->mii_media_active |= IFM_100_TX | IFM_FDX; break;
536 			case BRGPHY_RES_100T4:
537 				mii->mii_media_active |= IFM_100_T4; break;
538 			case BRGPHY_RES_100HD:
539 				mii->mii_media_active |= IFM_100_TX | IFM_HDX; 	break;
540 			case BRGPHY_RES_10FD:
541 				mii->mii_media_active |= IFM_10_T | IFM_FDX; break;
542 			case BRGPHY_RES_10HD:
543 				mii->mii_media_active |= IFM_10_T | IFM_HDX; break;
544 			default:
545 				mii->mii_media_active |= IFM_NONE; break;
546 			}
547 
548 			if ((mii->mii_media_active & IFM_FDX) != 0)
549 				mii->mii_media_active |= flowstat;
550 
551 			if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T &&
552 			    (xstat & BRGPHY_1000STS_MSR) != 0)
553 				mii->mii_media_active |= IFM_ETH_MASTER;
554 		}
555 	} else {
556 		/* Todo: Add support for flow control. */
557 		/* If serdes link is up, get the negotiated speed/duplex. */
558 		if (bmsr & BRGPHY_BMSR_LINK) {
559 			mii->mii_media_status |= IFM_ACTIVE;
560 		}
561 
562 		/* Check the link speed/duplex based on the PHY type. */
563 		if (bsc->serdes_flags & BRGPHY_5706S) {
564 			mii->mii_media_active |= IFM_1000_SX;
565 
566 			/* If autoneg enabled, read negotiated duplex settings */
567 			if (bmcr & BRGPHY_BMCR_AUTOEN) {
568 				val = PHY_READ(sc, BRGPHY_SERDES_ANAR) & PHY_READ(sc, BRGPHY_SERDES_ANLPAR);
569 				if (val & BRGPHY_SERDES_ANAR_FDX)
570 					mii->mii_media_active |= IFM_FDX;
571 				else
572 					mii->mii_media_active |= IFM_HDX;
573 			}
574 		} else if (bsc->serdes_flags & BRGPHY_5708S) {
575 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
576 			xstat = PHY_READ(sc, BRGPHY_5708S_PG0_1000X_STAT1);
577 
578 			/* Check for MRBE auto-negotiated speed results. */
579 			switch (xstat & BRGPHY_5708S_PG0_1000X_STAT1_SPEED_MASK) {
580 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_10:
581 				mii->mii_media_active |= IFM_10_FL; break;
582 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_100:
583 				mii->mii_media_active |= IFM_100_FX; break;
584 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_1G:
585 				mii->mii_media_active |= IFM_1000_SX; break;
586 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_25G:
587 				mii->mii_media_active |= IFM_2500_SX; break;
588 			}
589 
590 			/* Check for MRBE auto-negotiated duplex results. */
591 			if (xstat & BRGPHY_5708S_PG0_1000X_STAT1_FDX)
592 				mii->mii_media_active |= IFM_FDX;
593 			else
594 				mii->mii_media_active |= IFM_HDX;
595 		} else if (bsc->serdes_flags & BRGPHY_5709S) {
596 			/* Select GP Status Block of the AN MMD, get autoneg results. */
597 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_GP_STATUS);
598 			xstat = PHY_READ(sc, BRGPHY_GP_STATUS_TOP_ANEG_STATUS);
599 
600 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
601 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
602 
603 			/* Check for MRBE auto-negotiated speed results. */
604 			switch (xstat & BRGPHY_GP_STATUS_TOP_ANEG_SPEED_MASK) {
605 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_10:
606 					mii->mii_media_active |= IFM_10_FL; break;
607 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_100:
608 					mii->mii_media_active |= IFM_100_FX; break;
609 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_1G:
610 					mii->mii_media_active |= IFM_1000_SX; break;
611 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_25G:
612 					mii->mii_media_active |= IFM_2500_SX; break;
613 			}
614 
615 			/* Check for MRBE auto-negotiated duplex results. */
616 			if (xstat & BRGPHY_GP_STATUS_TOP_ANEG_FDX)
617 				mii->mii_media_active |= IFM_FDX;
618 			else
619 				mii->mii_media_active |= IFM_HDX;
620 		}
621 	}
622 }
623 
624 static void
625 brgphy_mii_phy_auto(struct mii_softc *sc, int media)
626 {
627 	int anar, ktcr = 0;
628 
629 	PHY_RESET(sc);
630 
631 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
632 		anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
633 		if ((media & IFM_FLOW) != 0 ||
634 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
635 			anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP;
636 		PHY_WRITE(sc, BRGPHY_MII_ANAR, anar);
637 		ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
638 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5701)
639 			ktcr |= BRGPHY_1000CTL_MSE | BRGPHY_1000CTL_MSC;
640 		PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
641 		PHY_READ(sc, BRGPHY_MII_1000CTL);
642 	} else {
643 		anar = BRGPHY_SERDES_ANAR_FDX | BRGPHY_SERDES_ANAR_HDX;
644 		if ((media & IFM_FLOW) != 0 ||
645 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
646 			anar |= BRGPHY_SERDES_ANAR_BOTH_PAUSE;
647 		PHY_WRITE(sc, BRGPHY_SERDES_ANAR, anar);
648 	}
649 
650 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN |
651 	    BRGPHY_BMCR_STARTNEG);
652 	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
653 }
654 
655 /* Enable loopback to force the link down. */
656 static void
657 brgphy_enable_loopback(struct mii_softc *sc)
658 {
659 	int i;
660 
661 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
662 	for (i = 0; i < 15000; i++) {
663 		if (!(PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_LINK))
664 			break;
665 		DELAY(10);
666 	}
667 }
668 
669 /* Turn off tap power management on 5401. */
670 static void
671 bcm5401_load_dspcode(struct mii_softc *sc)
672 {
673 	static const struct {
674 		int		reg;
675 		uint16_t	val;
676 	} dspcode[] = {
677 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
678 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
679 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
680 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
681 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
682 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
683 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
684 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
685 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
686 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
687 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
688 		{ 0,				0 },
689 	};
690 	int i;
691 
692 	for (i = 0; dspcode[i].reg != 0; i++)
693 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
694 	DELAY(40);
695 }
696 
697 static void
698 bcm5411_load_dspcode(struct mii_softc *sc)
699 {
700 	static const struct {
701 		int		reg;
702 		uint16_t	val;
703 	} dspcode[] = {
704 		{ 0x1c,				0x8c23 },
705 		{ 0x1c,				0x8ca3 },
706 		{ 0x1c,				0x8c23 },
707 		{ 0,				0 },
708 	};
709 	int i;
710 
711 	for (i = 0; dspcode[i].reg != 0; i++)
712 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
713 }
714 
715 void
716 bcm54k2_load_dspcode(struct mii_softc *sc)
717 {
718 	static const struct {
719 		int		reg;
720 		uint16_t	val;
721 	} dspcode[] = {
722 		{ 4,				0x01e1 },
723 		{ 9,				0x0300 },
724 		{ 0,				0 },
725 	};
726 	int i;
727 
728 	for (i = 0; dspcode[i].reg != 0; i++)
729 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
730 
731 }
732 
733 static void
734 brgphy_fixup_5704_a0_bug(struct mii_softc *sc)
735 {
736 	static const struct {
737 		int		reg;
738 		uint16_t	val;
739 	} dspcode[] = {
740 		{ 0x1c,				0x8d68 },
741 		{ 0x1c,				0x8d68 },
742 		{ 0,				0 },
743 	};
744 	int i;
745 
746 	for (i = 0; dspcode[i].reg != 0; i++)
747 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
748 }
749 
750 static void
751 brgphy_fixup_adc_bug(struct mii_softc *sc)
752 {
753 	static const struct {
754 		int		reg;
755 		uint16_t	val;
756 	} dspcode[] = {
757 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
758 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
759 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
760 		{ 0,				0 },
761 	};
762 	int i;
763 
764 	for (i = 0; dspcode[i].reg != 0; i++)
765 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
766 }
767 
768 static void
769 brgphy_fixup_adjust_trim(struct mii_softc *sc)
770 {
771 	static const struct {
772 		int		reg;
773 		uint16_t	val;
774 	} dspcode[] = {
775 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
776 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
777 		{ BRGPHY_MII_DSP_RW_PORT,	0x110b },
778 		{ BRGPHY_MII_TEST1,			0x0014 },
779 		{ BRGPHY_MII_AUXCTL,		0x0400 },
780 		{ 0,				0 },
781 	};
782 	int i;
783 
784 	for (i = 0; dspcode[i].reg != 0; i++)
785 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
786 }
787 
788 static void
789 brgphy_fixup_ber_bug(struct mii_softc *sc)
790 {
791 	static const struct {
792 		int		reg;
793 		uint16_t	val;
794 	} dspcode[] = {
795 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
796 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
797 		{ BRGPHY_MII_DSP_RW_PORT,	0x310b },
798 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
799 		{ BRGPHY_MII_DSP_RW_PORT,	0x9506 },
800 		{ BRGPHY_MII_DSP_ADDR_REG,	0x401f },
801 		{ BRGPHY_MII_DSP_RW_PORT,	0x14e2 },
802 		{ BRGPHY_MII_AUXCTL,		0x0400 },
803 		{ 0,				0 },
804 	};
805 	int i;
806 
807 	for (i = 0; dspcode[i].reg != 0; i++)
808 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
809 }
810 
811 static void
812 brgphy_fixup_crc_bug(struct mii_softc *sc)
813 {
814 	static const struct {
815 		int		reg;
816 		uint16_t	val;
817 	} dspcode[] = {
818 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a75 },
819 		{ 0x1c,				0x8c68 },
820 		{ 0x1c,				0x8d68 },
821 		{ 0x1c,				0x8c68 },
822 		{ 0,				0 },
823 	};
824 	int i;
825 
826 	for (i = 0; dspcode[i].reg != 0; i++)
827 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
828 }
829 
830 static void
831 brgphy_fixup_jitter_bug(struct mii_softc *sc)
832 {
833 	static const struct {
834 		int		reg;
835 		uint16_t	val;
836 	} dspcode[] = {
837 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
838 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
839 		{ BRGPHY_MII_DSP_RW_PORT,	0x010b },
840 		{ BRGPHY_MII_AUXCTL,		0x0400 },
841 		{ 0,				0 },
842 	};
843 	int i;
844 
845 	for (i = 0; dspcode[i].reg != 0; i++)
846 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
847 }
848 
849 static void
850 brgphy_fixup_disable_early_dac(struct mii_softc *sc)
851 {
852 	uint32_t val;
853 
854 	PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x0f08);
855 	val = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
856 	val &= ~(1 << 8);
857 	PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, val);
858 
859 }
860 
861 static void
862 brgphy_ethernet_wirespeed(struct mii_softc *sc)
863 {
864 	uint32_t	val;
865 
866 	/* Enable Ethernet@WireSpeed. */
867 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
868 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
869 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
870 }
871 
872 static void
873 brgphy_bcm54xx_clock_delay(struct mii_softc *sc)
874 {
875 	uint16_t val;
876 
877 	if (!(sc->mii_flags & (MIIF_RX_DELAY | MIIF_TX_DELAY)))
878 		/* Adjusting the clocks in rgmii mode causes packet losses. */
879 		return;
880 
881 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_SHADOW_MISC |
882 	    BRGPHY_AUXCTL_SHADOW_MISC << BRGPHY_AUXCTL_MISC_READ_SHIFT);
883 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
884 	val &= BRGPHY_AUXCTL_MISC_DATA_MASK;
885 	if (sc->mii_flags & MIIF_RX_DELAY)
886 		val |= BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
887 	else
888 		val &= ~BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
889 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_MISC_WRITE_EN |
890 	    BRGPHY_AUXCTL_SHADOW_MISC | val);
891 
892 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_CLK_CTRL);
893 	val = PHY_READ(sc, BRGPHY_MII_SHADOW_1C);
894 	val &= BRGPHY_SHADOW_1C_DATA_MASK;
895 	if (sc->mii_flags & MIIF_TX_DELAY)
896 		val |= BRGPHY_SHADOW_1C_GTXCLK_EN;
897 	else
898 		val &= ~BRGPHY_SHADOW_1C_GTXCLK_EN;
899 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_WRITE_EN |
900 	    BRGPHY_SHADOW_1C_CLK_CTRL | val);
901 }
902 
903 static void
904 brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
905 {
906 	uint32_t	val;
907 
908 	/* Set or clear jumbo frame settings in the PHY. */
909 	if (mtu > ETHER_MAX_LEN) {
910 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5401) {
911 			/* BCM5401 PHY cannot read-modify-write. */
912 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
913 		} else {
914 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
915 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
916 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
917 			    val | BRGPHY_AUXCTL_LONG_PKT);
918 		}
919 
920 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
921 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
922 		    val | BRGPHY_PHY_EXTCTL_HIGH_LA);
923 	} else {
924 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
925 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
926 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
927 		    val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
928 
929 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
930 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
931 			val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
932 	}
933 }
934 
935 static void
936 brgphy_reset(struct mii_softc *sc)
937 {
938 	struct bge_softc *bge_sc = NULL;
939 	struct bce_softc *bce_sc = NULL;
940 	if_t ifp;
941 	int i, val;
942 
943 	/*
944 	 * Perform a reset.  Note that at least some Broadcom PHYs default to
945 	 * being powered down as well as isolated after a reset but don't work
946 	 * if one or both of these bits are cleared.  However, they just work
947 	 * fine if both bits remain set, so we don't use mii_phy_reset() here.
948 	 */
949 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET);
950 
951 	/* Wait 100ms for it to complete. */
952 	for (i = 0; i < 100; i++) {
953 		if ((PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_RESET) == 0)
954 			break;
955 		DELAY(1000);
956 	}
957 
958 	/* Handle any PHY specific procedures following the reset. */
959 	switch (sc->mii_mpd_oui) {
960 	case MII_OUI_BROADCOM:
961 		switch (sc->mii_mpd_model) {
962 		case MII_MODEL_BROADCOM_BCM5400:
963 			bcm5401_load_dspcode(sc);
964 			break;
965 		case MII_MODEL_BROADCOM_BCM5401:
966 			if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
967 				bcm5401_load_dspcode(sc);
968 			break;
969 		case MII_MODEL_BROADCOM_BCM5411:
970 			bcm5411_load_dspcode(sc);
971 			break;
972 		case MII_MODEL_BROADCOM_BCM54K2:
973 			bcm54k2_load_dspcode(sc);
974 			break;
975 		}
976 		break;
977 	case MII_OUI_BROADCOM3:
978 		switch (sc->mii_mpd_model) {
979 		case MII_MODEL_BROADCOM3_BCM5717C:
980 		case MII_MODEL_BROADCOM3_BCM5719C:
981 		case MII_MODEL_BROADCOM3_BCM5720C:
982 		case MII_MODEL_BROADCOM3_BCM57765:
983 			return;
984 		}
985 		break;
986 	case MII_OUI_BROADCOM4:
987 		return;
988 	}
989 
990 	ifp = sc->mii_pdata->mii_ifp;
991 
992 	/* Find the driver associated with this PHY. */
993 	if (mii_phy_mac_match(sc, "bge"))
994 		bge_sc = mii_phy_mac_softc(sc);
995 	else if (mii_phy_mac_match(sc, "bce"))
996 		bce_sc = mii_phy_mac_softc(sc);
997 
998 	if (bge_sc) {
999 		/* Fix up various bugs */
1000 		if (bge_sc->bge_phy_flags & BGE_PHY_5704_A0_BUG)
1001 			brgphy_fixup_5704_a0_bug(sc);
1002 		if (bge_sc->bge_phy_flags & BGE_PHY_ADC_BUG)
1003 			brgphy_fixup_adc_bug(sc);
1004 		if (bge_sc->bge_phy_flags & BGE_PHY_ADJUST_TRIM)
1005 			brgphy_fixup_adjust_trim(sc);
1006 		if (bge_sc->bge_phy_flags & BGE_PHY_BER_BUG)
1007 			brgphy_fixup_ber_bug(sc);
1008 		if (bge_sc->bge_phy_flags & BGE_PHY_CRC_BUG)
1009 			brgphy_fixup_crc_bug(sc);
1010 		if (bge_sc->bge_phy_flags & BGE_PHY_JITTER_BUG)
1011 			brgphy_fixup_jitter_bug(sc);
1012 
1013 		if (bge_sc->bge_flags & BGE_FLAG_JUMBO)
1014 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1015 
1016 		if ((bge_sc->bge_phy_flags & BGE_PHY_NO_WIRESPEED) == 0)
1017 			brgphy_ethernet_wirespeed(sc);
1018 
1019 		/* Enable Link LED on Dell boxes */
1020 		if (bge_sc->bge_phy_flags & BGE_PHY_NO_3LED) {
1021 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
1022 			    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) &
1023 			    ~BRGPHY_PHY_EXTCTL_3_LED);
1024 		}
1025 
1026 		/* Adjust output voltage (From Linux driver) */
1027 		if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5906)
1028 			PHY_WRITE(sc, BRGPHY_MII_EPHY_PTEST, 0x12);
1029 	} else if (bce_sc) {
1030 		if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5708 &&
1031 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1032 			/* Store autoneg capabilities/results in digital block (Page 0) */
1033 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG3_PG2);
1034 			PHY_WRITE(sc, BRGPHY_5708S_PG2_DIGCTL_3_0,
1035 				BRGPHY_5708S_PG2_DIGCTL_3_0_USE_IEEE);
1036 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
1037 
1038 			/* Enable fiber mode and autodetection */
1039 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL1,
1040 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL1) |
1041 				BRGPHY_5708S_PG0_1000X_CTL1_AUTODET_EN |
1042 				BRGPHY_5708S_PG0_1000X_CTL1_FIBER_MODE);
1043 
1044 			/* Enable parallel detection */
1045 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL2,
1046 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL2) |
1047 				BRGPHY_5708S_PG0_1000X_CTL2_PAR_DET_EN);
1048 
1049 			/* Advertise 2.5G support through next page during autoneg */
1050 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1051 				PHY_WRITE(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1,
1052 					PHY_READ(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1) |
1053 					BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G);
1054 
1055 			/* Increase TX signal amplitude */
1056 			if ((BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_A0) ||
1057 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B0) ||
1058 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B1)) {
1059 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1060 					BRGPHY_5708S_TX_MISC_PG5);
1061 				PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL1,
1062 					PHY_READ(sc, BRGPHY_5708S_PG5_TXACTL1) & ~0x30);
1063 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1064 					BRGPHY_5708S_DIG_PG0);
1065 			}
1066 
1067 			/* Backplanes use special driver/pre-driver/pre-emphasis values. */
1068 			if ((bce_sc->bce_shared_hw_cfg & BCE_SHARED_HW_CFG_PHY_BACKPLANE) &&
1069 				(bce_sc->bce_port_hw_cfg & BCE_PORT_HW_CFG_CFG_TXCTL3_MASK)) {
1070 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1071 						BRGPHY_5708S_TX_MISC_PG5);
1072 					PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL3,
1073 						bce_sc->bce_port_hw_cfg &
1074 						BCE_PORT_HW_CFG_CFG_TXCTL3_MASK);
1075 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1076 						BRGPHY_5708S_DIG_PG0);
1077 			}
1078 		} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709 &&
1079 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1080 			/* Select the SerDes Digital block of the AN MMD. */
1081 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_SERDES_DIG);
1082 			val = PHY_READ(sc, BRGPHY_SERDES_DIG_1000X_CTL1);
1083 			val &= ~BRGPHY_SD_DIG_1000X_CTL1_AUTODET;
1084 			val |= BRGPHY_SD_DIG_1000X_CTL1_FIBER;
1085 			PHY_WRITE(sc, BRGPHY_SERDES_DIG_1000X_CTL1, val);
1086 
1087 			/* Select the Over 1G block of the AN MMD. */
1088 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_OVER_1G);
1089 
1090 			/* Enable autoneg "Next Page" to advertise 2.5G support. */
1091 			val = PHY_READ(sc, BRGPHY_OVER_1G_UNFORMAT_PG1);
1092 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1093 				val |= BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1094 			else
1095 				val &= ~BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1096 			PHY_WRITE(sc, BRGPHY_OVER_1G_UNFORMAT_PG1, val);
1097 
1098 			/* Select the Multi-Rate Backplane Ethernet block of the AN MMD. */
1099 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_MRBE);
1100 
1101 			/* Enable MRBE speed autoneg. */
1102 			val = PHY_READ(sc, BRGPHY_MRBE_MSG_PG5_NP);
1103 			val |= BRGPHY_MRBE_MSG_PG5_NP_MBRE |
1104 			    BRGPHY_MRBE_MSG_PG5_NP_T2;
1105 			PHY_WRITE(sc, BRGPHY_MRBE_MSG_PG5_NP, val);
1106 
1107 			/* Select the Clause 73 User B0 block of the AN MMD. */
1108 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_CL73_USER_B0);
1109 
1110 			/* Enable MRBE speed autoneg. */
1111 			PHY_WRITE(sc, BRGPHY_CL73_USER_B0_MBRE_CTL1,
1112 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_NP_AFT_BP |
1113 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_STA_MGR |
1114 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_ANEG);
1115 
1116 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
1117 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
1118         } else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709) {
1119 			if ((BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Ax) ||
1120 				(BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Bx))
1121 				brgphy_fixup_disable_early_dac(sc);
1122 
1123 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1124 			brgphy_ethernet_wirespeed(sc);
1125 		} else {
1126 			brgphy_fixup_ber_bug(sc);
1127 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1128 			brgphy_ethernet_wirespeed(sc);
1129 		}
1130 	}
1131 }
1132