xref: /freebsd/sys/dev/mii/brgphy.c (revision b111430e54537a66080df115c3a2950a2922da5a)
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 devclass_t brgphy_devclass;
93 
94 static driver_t brgphy_driver = {
95 	"brgphy",
96 	brgphy_methods,
97 	sizeof(struct brgphy_softc)
98 };
99 
100 DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
101 
102 static int	brgphy_service(struct mii_softc *, struct mii_data *, int);
103 static void	brgphy_setmedia(struct mii_softc *, int);
104 static void	brgphy_status(struct mii_softc *);
105 static void	brgphy_mii_phy_auto(struct mii_softc *, int);
106 static void	brgphy_reset(struct mii_softc *);
107 static void	brgphy_enable_loopback(struct mii_softc *);
108 static void	bcm5401_load_dspcode(struct mii_softc *);
109 static void	bcm5411_load_dspcode(struct mii_softc *);
110 static void	bcm54k2_load_dspcode(struct mii_softc *);
111 static void	brgphy_fixup_5704_a0_bug(struct mii_softc *);
112 static void	brgphy_fixup_adc_bug(struct mii_softc *);
113 static void	brgphy_fixup_adjust_trim(struct mii_softc *);
114 static void	brgphy_fixup_ber_bug(struct mii_softc *);
115 static void	brgphy_fixup_crc_bug(struct mii_softc *);
116 static void	brgphy_fixup_jitter_bug(struct mii_softc *);
117 static void	brgphy_ethernet_wirespeed(struct mii_softc *);
118 static void	brgphy_bcm54xx_clock_delay(struct mii_softc *);
119 static void	brgphy_jumbo_settings(struct mii_softc *, u_long);
120 
121 static const struct mii_phydesc brgphys[] = {
122 	MII_PHY_DESC(BROADCOM, BCM5400),
123 	MII_PHY_DESC(BROADCOM, BCM5401),
124 	MII_PHY_DESC(BROADCOM, BCM5402),
125 	MII_PHY_DESC(BROADCOM, BCM5411),
126 	MII_PHY_DESC(BROADCOM, BCM5404),
127 	MII_PHY_DESC(BROADCOM, BCM5424),
128 	MII_PHY_DESC(BROADCOM, BCM54K2),
129 	MII_PHY_DESC(BROADCOM, BCM5701),
130 	MII_PHY_DESC(BROADCOM, BCM5703),
131 	MII_PHY_DESC(BROADCOM, BCM5704),
132 	MII_PHY_DESC(BROADCOM, BCM5705),
133 	MII_PHY_DESC(BROADCOM, BCM5706),
134 	MII_PHY_DESC(BROADCOM, BCM5714),
135 	MII_PHY_DESC(BROADCOM, BCM5421),
136 	MII_PHY_DESC(BROADCOM, BCM5750),
137 	MII_PHY_DESC(BROADCOM, BCM5752),
138 	MII_PHY_DESC(BROADCOM, BCM5780),
139 	MII_PHY_DESC(BROADCOM, BCM5708C),
140 	MII_PHY_DESC(BROADCOM, BCM5466),
141 	MII_PHY_DESC(BROADCOM2, BCM5478),
142 	MII_PHY_DESC(BROADCOM2, BCM5488),
143 	MII_PHY_DESC(BROADCOM2, BCM5482),
144 	MII_PHY_DESC(BROADCOM2, BCM5708S),
145 	MII_PHY_DESC(BROADCOM2, BCM5709C),
146 	MII_PHY_DESC(BROADCOM2, BCM5709S),
147 	MII_PHY_DESC(BROADCOM2, BCM5709CAX),
148 	MII_PHY_DESC(BROADCOM2, BCM5722),
149 	MII_PHY_DESC(BROADCOM2, BCM5755),
150 	MII_PHY_DESC(BROADCOM2, BCM5754),
151 	MII_PHY_DESC(BROADCOM2, BCM5761),
152 	MII_PHY_DESC(BROADCOM2, BCM5784),
153 #ifdef notyet	/* better handled by ukphy(4) until WARs are implemented */
154 	MII_PHY_DESC(BROADCOM2, BCM5785),
155 #endif
156 	MII_PHY_DESC(BROADCOM3, BCM54618SE),
157 	MII_PHY_DESC(BROADCOM3, BCM5717C),
158 	MII_PHY_DESC(BROADCOM3, BCM5719C),
159 	MII_PHY_DESC(BROADCOM3, BCM5720C),
160 	MII_PHY_DESC(BROADCOM3, BCM57765),
161 	MII_PHY_DESC(BROADCOM3, BCM57780),
162 	MII_PHY_DESC(BROADCOM4, BCM54213PE),
163 	MII_PHY_DESC(BROADCOM4, BCM5725C),
164 	MII_PHY_DESC(xxBROADCOM_ALT1, BCM5906),
165 	MII_PHY_END
166 };
167 
168 static const struct mii_phy_funcs brgphy_funcs = {
169 	brgphy_service,
170 	brgphy_status,
171 	brgphy_reset
172 };
173 
174 static const struct hs21_type {
175 	const uint32_t id;
176 	const char *prod;
177 } hs21_type_lists[] = {
178 	{ 0x57081021, "IBM eServer BladeCenter HS21" },
179 	{ 0x57081011, "IBM eServer BladeCenter HS21 -[8853PAU]-" },
180 };
181 
182 static int
183 detect_hs21(struct bce_softc *bce_sc)
184 {
185 	char *sysenv;
186 	int found, i;
187 
188 	found = 0;
189 	sysenv = kern_getenv("smbios.system.product");
190 	if (sysenv == NULL)
191 		return (found);
192 	for (i = 0; i < nitems(hs21_type_lists); i++) {
193 		if (bce_sc->bce_chipid == hs21_type_lists[i].id &&
194 		    strncmp(sysenv, hs21_type_lists[i].prod,
195 		    strlen(hs21_type_lists[i].prod)) == 0) {
196 			found++;
197 			break;
198 		}
199 	}
200 	freeenv(sysenv);
201 	return (found);
202 }
203 
204 /* Search for our PHY in the list of known PHYs */
205 static int
206 brgphy_probe(device_t dev)
207 {
208 
209 	return (mii_phy_dev_probe(dev, brgphys, BUS_PROBE_DEFAULT));
210 }
211 
212 /* Attach the PHY to the MII bus */
213 static int
214 brgphy_attach(device_t dev)
215 {
216 	struct brgphy_softc *bsc;
217 	struct bge_softc *bge_sc = NULL;
218 	struct bce_softc *bce_sc = NULL;
219 	struct mii_softc *sc;
220 
221 	bsc = device_get_softc(dev);
222 	sc = &bsc->mii_sc;
223 
224 	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
225 	    &brgphy_funcs, 0);
226 
227 	bsc->serdes_flags = 0;
228 
229 	/* Find the MAC driver associated with this PHY. */
230 	if (mii_dev_mac_match(dev, "bge"))
231 		bge_sc = mii_dev_mac_softc(dev);
232 	else if (mii_dev_mac_match(dev, "bce"))
233 		bce_sc = mii_dev_mac_softc(dev);
234 
235 	/* Handle any special cases based on the PHY ID */
236 	switch (sc->mii_mpd_oui) {
237 	case MII_OUI_BROADCOM:
238 		switch (sc->mii_mpd_model) {
239 		case MII_MODEL_BROADCOM_BCM5706:
240 		case MII_MODEL_BROADCOM_BCM5714:
241 			/*
242 			 * The 5464 PHY used in the 5706 supports both copper
243 			 * and fiber interfaces over GMII.  Need to check the
244 			 * shadow registers to see which mode is actually
245 			 * in effect, and therefore whether we have 5706C or
246 			 * 5706S.
247 			 */
248 			PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
249 				BRGPHY_SHADOW_1C_MODE_CTRL);
250 			if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
251 				BRGPHY_SHADOW_1C_ENA_1000X) {
252 				bsc->serdes_flags |= BRGPHY_5706S;
253 				sc->mii_flags |= MIIF_HAVEFIBER;
254 			}
255 			break;
256 		}
257 		break;
258 	case MII_OUI_BROADCOM2:
259 		switch (sc->mii_mpd_model) {
260 		case MII_MODEL_BROADCOM2_BCM5708S:
261 			bsc->serdes_flags |= BRGPHY_5708S;
262 			sc->mii_flags |= MIIF_HAVEFIBER;
263 			break;
264 		case MII_MODEL_BROADCOM2_BCM5709S:
265 			/*
266 			 * XXX
267 			 * 5720S and 5709S shares the same PHY id.
268 			 * Assume 5720S PHY if parent device is bge(4).
269 			 */
270 			if (bge_sc != NULL)
271 				bsc->serdes_flags |= BRGPHY_5708S;
272 			else
273 				bsc->serdes_flags |= BRGPHY_5709S;
274 			sc->mii_flags |= MIIF_HAVEFIBER;
275 			break;
276 		}
277 		break;
278 	}
279 
280 	PHY_RESET(sc);
281 
282 	/* Read the PHY's capabilities. */
283 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
284 	if (sc->mii_capabilities & BMSR_EXTSTAT)
285 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
286 	device_printf(dev, " ");
287 
288 	/* Add the supported media types */
289 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
290 		mii_phy_add_media(sc);
291 		printf("\n");
292 	} else {
293 		sc->mii_anegticks = MII_ANEGTICKS_GIGE;
294 		ifmedia_add(&sc->mii_pdata->mii_media,
295 		    IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
296 		    0, NULL);
297 		printf("1000baseSX-FDX, ");
298 		/*
299 		 * 2.5G support is a software enabled feature
300 		 * on the 5708S and 5709S.
301 		 */
302 		if (bce_sc && (bce_sc->bce_phy_flags &
303 		    BCE_PHY_2_5G_CAPABLE_FLAG)) {
304 			ifmedia_add(&sc->mii_pdata->mii_media,
305 			    IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX,
306 			    sc->mii_inst), 0, NULL);
307 			printf("2500baseSX-FDX, ");
308 		} else if ((bsc->serdes_flags & BRGPHY_5708S) && bce_sc &&
309 		    (detect_hs21(bce_sc) != 0)) {
310 			/*
311 			 * There appears to be certain silicon revision
312 			 * in IBM HS21 blades that is having issues with
313 			 * this driver wating for the auto-negotiation to
314 			 * complete. This happens with a specific chip id
315 			 * only and when the 1000baseSX-FDX is the only
316 			 * mode. Workaround this issue since it's unlikely
317 			 * to be ever addressed.
318 			 */
319 			printf("auto-neg workaround, ");
320 			bsc->serdes_flags |= BRGPHY_NOANWAIT;
321 		}
322 		ifmedia_add(&sc->mii_pdata->mii_media, IFM_MAKEWORD(IFM_ETHER,
323 		    IFM_AUTO, 0, sc->mii_inst), 0, NULL);
324 		printf("auto\n");
325 	}
326 
327 	MIIBUS_MEDIAINIT(sc->mii_dev);
328 	return (0);
329 }
330 
331 static int
332 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
333 {
334 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
335 	int val;
336 
337 	switch (cmd) {
338 	case MII_POLLSTAT:
339 		break;
340 	case MII_MEDIACHG:
341 		/* Todo: Why is this here?  Is it really needed? */
342 		PHY_RESET(sc);	/* XXX hardware bug work-around */
343 
344 		switch (IFM_SUBTYPE(ife->ifm_media)) {
345 		case IFM_AUTO:
346 			brgphy_mii_phy_auto(sc, ife->ifm_media);
347 			break;
348 		case IFM_2500_SX:
349 		case IFM_1000_SX:
350 		case IFM_1000_T:
351 		case IFM_100_TX:
352 		case IFM_10_T:
353 			brgphy_setmedia(sc, ife->ifm_media);
354 			break;
355 		default:
356 			return (EINVAL);
357 		}
358 		break;
359 	case MII_TICK:
360 		/* Bail if autoneg isn't in process. */
361 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
362 			sc->mii_ticks = 0;
363 			break;
364 		}
365 
366 		/*
367 		 * Check to see if we have link.  If we do, we don't
368 		 * need to restart the autonegotiation process.
369 		 */
370 		val = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
371 		if (val & BMSR_LINK) {
372 			sc->mii_ticks = 0;	/* Reset autoneg timer. */
373 			break;
374 		}
375 
376 		/* Announce link loss right after it happens. */
377 		if (sc->mii_ticks++ == 0)
378 			break;
379 
380 		/* Only retry autonegotiation every mii_anegticks seconds. */
381 		if (sc->mii_ticks <= sc->mii_anegticks)
382 			break;
383 
384 		/* Retry autonegotiation */
385 		sc->mii_ticks = 0;
386 		brgphy_mii_phy_auto(sc, ife->ifm_media);
387 		break;
388 	}
389 
390 	/* Update the media status. */
391 	PHY_STATUS(sc);
392 
393 	/*
394 	 * Callback if something changed. Note that we need to poke
395 	 * the DSP on the Broadcom PHYs if the media changes.
396 	 */
397 	if (sc->mii_media_active != mii->mii_media_active ||
398 	    sc->mii_media_status != mii->mii_media_status ||
399 	    cmd == MII_MEDIACHG) {
400 		switch (sc->mii_mpd_oui) {
401 		case MII_OUI_BROADCOM:
402 			switch (sc->mii_mpd_model) {
403 			case MII_MODEL_BROADCOM_BCM5400:
404 				bcm5401_load_dspcode(sc);
405 				break;
406 			case MII_MODEL_BROADCOM_BCM5401:
407 				if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
408 					bcm5401_load_dspcode(sc);
409 				break;
410 			case MII_MODEL_BROADCOM_BCM5411:
411 				bcm5411_load_dspcode(sc);
412 				break;
413 			case MII_MODEL_BROADCOM_BCM54K2:
414 				bcm54k2_load_dspcode(sc);
415 				break;
416 			}
417 			break;
418 		case MII_OUI_BROADCOM4:
419 			switch (sc->mii_mpd_model) {
420 			case MII_MODEL_BROADCOM4_BCM54213PE:
421 				brgphy_bcm54xx_clock_delay(sc);
422 				break;
423 			}
424 		}
425 	}
426 	mii_phy_update(sc, cmd);
427 	return (0);
428 }
429 
430 /****************************************************************************/
431 /* Sets the PHY link speed.                                                 */
432 /*                                                                          */
433 /* Returns:                                                                 */
434 /*   None                                                                   */
435 /****************************************************************************/
436 static void
437 brgphy_setmedia(struct mii_softc *sc, int media)
438 {
439 	int bmcr = 0, gig;
440 
441 	switch (IFM_SUBTYPE(media)) {
442 	case IFM_2500_SX:
443 		break;
444 	case IFM_1000_SX:
445 	case IFM_1000_T:
446 		bmcr = BRGPHY_S1000;
447 		break;
448 	case IFM_100_TX:
449 		bmcr = BRGPHY_S100;
450 		break;
451 	case IFM_10_T:
452 	default:
453 		bmcr = BRGPHY_S10;
454 		break;
455 	}
456 
457 	if ((media & IFM_FDX) != 0) {
458 		bmcr |= BRGPHY_BMCR_FDX;
459 		gig = BRGPHY_1000CTL_AFD;
460 	} else {
461 		gig = BRGPHY_1000CTL_AHD;
462 	}
463 
464 	/* Force loopback to disconnect PHY from Ethernet medium. */
465 	brgphy_enable_loopback(sc);
466 
467 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
468 	PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
469 
470 	if (IFM_SUBTYPE(media) != IFM_1000_T &&
471 	    IFM_SUBTYPE(media) != IFM_1000_SX) {
472 		PHY_WRITE(sc, BRGPHY_MII_BMCR, bmcr);
473 		return;
474 	}
475 
476 	if (IFM_SUBTYPE(media) == IFM_1000_T) {
477 		gig |= BRGPHY_1000CTL_MSE;
478 		if ((media & IFM_ETH_MASTER) != 0)
479 			gig |= BRGPHY_1000CTL_MSC;
480 	}
481 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
482 	PHY_WRITE(sc, BRGPHY_MII_BMCR,
483 	    bmcr | BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
484 }
485 
486 /****************************************************************************/
487 /* Set the media status based on the PHY settings.                          */
488 /*                                                                          */
489 /* Returns:                                                                 */
490 /*   None                                                                   */
491 /****************************************************************************/
492 static void
493 brgphy_status(struct mii_softc *sc)
494 {
495 	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
496 	struct mii_data *mii = sc->mii_pdata;
497 	int aux, bmcr, bmsr, val, xstat;
498 	u_int flowstat;
499 
500 	mii->mii_media_status = IFM_AVALID;
501 	mii->mii_media_active = IFM_ETHER;
502 
503 	bmsr = PHY_READ(sc, BRGPHY_MII_BMSR) | PHY_READ(sc, BRGPHY_MII_BMSR);
504 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
505 
506 	if (bmcr & BRGPHY_BMCR_LOOP) {
507 		mii->mii_media_active |= IFM_LOOP;
508 	}
509 
510 	if ((bmcr & BRGPHY_BMCR_AUTOEN) &&
511 	    (bmsr & BRGPHY_BMSR_ACOMP) == 0 &&
512 	    (bsc->serdes_flags & BRGPHY_NOANWAIT) == 0) {
513 		/* Erg, still trying, I guess... */
514 		mii->mii_media_active |= IFM_NONE;
515 		return;
516 	}
517 
518 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
519 		/*
520 		 * NB: reading the ANAR, ANLPAR or 1000STS after the AUXSTS
521 		 * wedges at least the PHY of BCM5704 (but not others).
522 		 */
523 		flowstat = mii_phy_flowstatus(sc);
524 		xstat = PHY_READ(sc, BRGPHY_MII_1000STS);
525 		aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
526 
527 		/* If copper link is up, get the negotiated speed/duplex. */
528 		if (aux & BRGPHY_AUXSTS_LINK) {
529 			mii->mii_media_status |= IFM_ACTIVE;
530 			switch (aux & BRGPHY_AUXSTS_AN_RES) {
531 			case BRGPHY_RES_1000FD:
532 				mii->mii_media_active |= IFM_1000_T | IFM_FDX; 	break;
533 			case BRGPHY_RES_1000HD:
534 				mii->mii_media_active |= IFM_1000_T | IFM_HDX; 	break;
535 			case BRGPHY_RES_100FD:
536 				mii->mii_media_active |= IFM_100_TX | IFM_FDX; break;
537 			case BRGPHY_RES_100T4:
538 				mii->mii_media_active |= IFM_100_T4; break;
539 			case BRGPHY_RES_100HD:
540 				mii->mii_media_active |= IFM_100_TX | IFM_HDX; 	break;
541 			case BRGPHY_RES_10FD:
542 				mii->mii_media_active |= IFM_10_T | IFM_FDX; break;
543 			case BRGPHY_RES_10HD:
544 				mii->mii_media_active |= IFM_10_T | IFM_HDX; break;
545 			default:
546 				mii->mii_media_active |= IFM_NONE; break;
547 			}
548 
549 			if ((mii->mii_media_active & IFM_FDX) != 0)
550 				mii->mii_media_active |= flowstat;
551 
552 			if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T &&
553 			    (xstat & BRGPHY_1000STS_MSR) != 0)
554 				mii->mii_media_active |= IFM_ETH_MASTER;
555 		}
556 	} else {
557 		/* Todo: Add support for flow control. */
558 		/* If serdes link is up, get the negotiated speed/duplex. */
559 		if (bmsr & BRGPHY_BMSR_LINK) {
560 			mii->mii_media_status |= IFM_ACTIVE;
561 		}
562 
563 		/* Check the link speed/duplex based on the PHY type. */
564 		if (bsc->serdes_flags & BRGPHY_5706S) {
565 			mii->mii_media_active |= IFM_1000_SX;
566 
567 			/* If autoneg enabled, read negotiated duplex settings */
568 			if (bmcr & BRGPHY_BMCR_AUTOEN) {
569 				val = PHY_READ(sc, BRGPHY_SERDES_ANAR) & PHY_READ(sc, BRGPHY_SERDES_ANLPAR);
570 				if (val & BRGPHY_SERDES_ANAR_FDX)
571 					mii->mii_media_active |= IFM_FDX;
572 				else
573 					mii->mii_media_active |= IFM_HDX;
574 			}
575 		} else if (bsc->serdes_flags & BRGPHY_5708S) {
576 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
577 			xstat = PHY_READ(sc, BRGPHY_5708S_PG0_1000X_STAT1);
578 
579 			/* Check for MRBE auto-negotiated speed results. */
580 			switch (xstat & BRGPHY_5708S_PG0_1000X_STAT1_SPEED_MASK) {
581 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_10:
582 				mii->mii_media_active |= IFM_10_FL; break;
583 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_100:
584 				mii->mii_media_active |= IFM_100_FX; break;
585 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_1G:
586 				mii->mii_media_active |= IFM_1000_SX; break;
587 			case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_25G:
588 				mii->mii_media_active |= IFM_2500_SX; break;
589 			}
590 
591 			/* Check for MRBE auto-negotiated duplex results. */
592 			if (xstat & BRGPHY_5708S_PG0_1000X_STAT1_FDX)
593 				mii->mii_media_active |= IFM_FDX;
594 			else
595 				mii->mii_media_active |= IFM_HDX;
596 		} else if (bsc->serdes_flags & BRGPHY_5709S) {
597 			/* Select GP Status Block of the AN MMD, get autoneg results. */
598 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_GP_STATUS);
599 			xstat = PHY_READ(sc, BRGPHY_GP_STATUS_TOP_ANEG_STATUS);
600 
601 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
602 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
603 
604 			/* Check for MRBE auto-negotiated speed results. */
605 			switch (xstat & BRGPHY_GP_STATUS_TOP_ANEG_SPEED_MASK) {
606 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_10:
607 					mii->mii_media_active |= IFM_10_FL; break;
608 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_100:
609 					mii->mii_media_active |= IFM_100_FX; break;
610 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_1G:
611 					mii->mii_media_active |= IFM_1000_SX; break;
612 				case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_25G:
613 					mii->mii_media_active |= IFM_2500_SX; break;
614 			}
615 
616 			/* Check for MRBE auto-negotiated duplex results. */
617 			if (xstat & BRGPHY_GP_STATUS_TOP_ANEG_FDX)
618 				mii->mii_media_active |= IFM_FDX;
619 			else
620 				mii->mii_media_active |= IFM_HDX;
621 		}
622 	}
623 }
624 
625 static void
626 brgphy_mii_phy_auto(struct mii_softc *sc, int media)
627 {
628 	int anar, ktcr = 0;
629 
630 	PHY_RESET(sc);
631 
632 	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
633 		anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
634 		if ((media & IFM_FLOW) != 0 ||
635 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
636 			anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP;
637 		PHY_WRITE(sc, BRGPHY_MII_ANAR, anar);
638 		ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
639 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5701)
640 			ktcr |= BRGPHY_1000CTL_MSE | BRGPHY_1000CTL_MSC;
641 		PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
642 		PHY_READ(sc, BRGPHY_MII_1000CTL);
643 	} else {
644 		anar = BRGPHY_SERDES_ANAR_FDX | BRGPHY_SERDES_ANAR_HDX;
645 		if ((media & IFM_FLOW) != 0 ||
646 		    (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
647 			anar |= BRGPHY_SERDES_ANAR_BOTH_PAUSE;
648 		PHY_WRITE(sc, BRGPHY_SERDES_ANAR, anar);
649 	}
650 
651 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN |
652 	    BRGPHY_BMCR_STARTNEG);
653 	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
654 }
655 
656 /* Enable loopback to force the link down. */
657 static void
658 brgphy_enable_loopback(struct mii_softc *sc)
659 {
660 	int i;
661 
662 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
663 	for (i = 0; i < 15000; i++) {
664 		if (!(PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_LINK))
665 			break;
666 		DELAY(10);
667 	}
668 }
669 
670 /* Turn off tap power management on 5401. */
671 static void
672 bcm5401_load_dspcode(struct mii_softc *sc)
673 {
674 	static const struct {
675 		int		reg;
676 		uint16_t	val;
677 	} dspcode[] = {
678 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
679 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
680 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
681 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
682 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
683 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
684 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
685 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
686 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
687 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
688 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
689 		{ 0,				0 },
690 	};
691 	int i;
692 
693 	for (i = 0; dspcode[i].reg != 0; i++)
694 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
695 	DELAY(40);
696 }
697 
698 static void
699 bcm5411_load_dspcode(struct mii_softc *sc)
700 {
701 	static const struct {
702 		int		reg;
703 		uint16_t	val;
704 	} dspcode[] = {
705 		{ 0x1c,				0x8c23 },
706 		{ 0x1c,				0x8ca3 },
707 		{ 0x1c,				0x8c23 },
708 		{ 0,				0 },
709 	};
710 	int i;
711 
712 	for (i = 0; dspcode[i].reg != 0; i++)
713 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
714 }
715 
716 void
717 bcm54k2_load_dspcode(struct mii_softc *sc)
718 {
719 	static const struct {
720 		int		reg;
721 		uint16_t	val;
722 	} dspcode[] = {
723 		{ 4,				0x01e1 },
724 		{ 9,				0x0300 },
725 		{ 0,				0 },
726 	};
727 	int i;
728 
729 	for (i = 0; dspcode[i].reg != 0; i++)
730 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
731 
732 }
733 
734 static void
735 brgphy_fixup_5704_a0_bug(struct mii_softc *sc)
736 {
737 	static const struct {
738 		int		reg;
739 		uint16_t	val;
740 	} dspcode[] = {
741 		{ 0x1c,				0x8d68 },
742 		{ 0x1c,				0x8d68 },
743 		{ 0,				0 },
744 	};
745 	int i;
746 
747 	for (i = 0; dspcode[i].reg != 0; i++)
748 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
749 }
750 
751 static void
752 brgphy_fixup_adc_bug(struct mii_softc *sc)
753 {
754 	static const struct {
755 		int		reg;
756 		uint16_t	val;
757 	} dspcode[] = {
758 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
759 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
760 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
761 		{ 0,				0 },
762 	};
763 	int i;
764 
765 	for (i = 0; dspcode[i].reg != 0; i++)
766 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
767 }
768 
769 static void
770 brgphy_fixup_adjust_trim(struct mii_softc *sc)
771 {
772 	static const struct {
773 		int		reg;
774 		uint16_t	val;
775 	} dspcode[] = {
776 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
777 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
778 		{ BRGPHY_MII_DSP_RW_PORT,	0x110b },
779 		{ BRGPHY_MII_TEST1,			0x0014 },
780 		{ BRGPHY_MII_AUXCTL,		0x0400 },
781 		{ 0,				0 },
782 	};
783 	int i;
784 
785 	for (i = 0; dspcode[i].reg != 0; i++)
786 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
787 }
788 
789 static void
790 brgphy_fixup_ber_bug(struct mii_softc *sc)
791 {
792 	static const struct {
793 		int		reg;
794 		uint16_t	val;
795 	} dspcode[] = {
796 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
797 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
798 		{ BRGPHY_MII_DSP_RW_PORT,	0x310b },
799 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
800 		{ BRGPHY_MII_DSP_RW_PORT,	0x9506 },
801 		{ BRGPHY_MII_DSP_ADDR_REG,	0x401f },
802 		{ BRGPHY_MII_DSP_RW_PORT,	0x14e2 },
803 		{ BRGPHY_MII_AUXCTL,		0x0400 },
804 		{ 0,				0 },
805 	};
806 	int i;
807 
808 	for (i = 0; dspcode[i].reg != 0; i++)
809 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
810 }
811 
812 static void
813 brgphy_fixup_crc_bug(struct mii_softc *sc)
814 {
815 	static const struct {
816 		int		reg;
817 		uint16_t	val;
818 	} dspcode[] = {
819 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a75 },
820 		{ 0x1c,				0x8c68 },
821 		{ 0x1c,				0x8d68 },
822 		{ 0x1c,				0x8c68 },
823 		{ 0,				0 },
824 	};
825 	int i;
826 
827 	for (i = 0; dspcode[i].reg != 0; i++)
828 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
829 }
830 
831 static void
832 brgphy_fixup_jitter_bug(struct mii_softc *sc)
833 {
834 	static const struct {
835 		int		reg;
836 		uint16_t	val;
837 	} dspcode[] = {
838 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
839 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
840 		{ BRGPHY_MII_DSP_RW_PORT,	0x010b },
841 		{ BRGPHY_MII_AUXCTL,		0x0400 },
842 		{ 0,				0 },
843 	};
844 	int i;
845 
846 	for (i = 0; dspcode[i].reg != 0; i++)
847 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
848 }
849 
850 static void
851 brgphy_fixup_disable_early_dac(struct mii_softc *sc)
852 {
853 	uint32_t val;
854 
855 	PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x0f08);
856 	val = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
857 	val &= ~(1 << 8);
858 	PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, val);
859 
860 }
861 
862 static void
863 brgphy_ethernet_wirespeed(struct mii_softc *sc)
864 {
865 	uint32_t	val;
866 
867 	/* Enable Ethernet@WireSpeed. */
868 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
869 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
870 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
871 }
872 
873 static void
874 brgphy_bcm54xx_clock_delay(struct mii_softc *sc)
875 {
876 	uint16_t val;
877 
878 	if (!(sc->mii_flags & (MIIF_RX_DELAY | MIIF_TX_DELAY)))
879 		/* Adjusting the clocks in rgmii mode causes packet losses. */
880 		return;
881 
882 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_SHADOW_MISC |
883 	    BRGPHY_AUXCTL_SHADOW_MISC << BRGPHY_AUXCTL_MISC_READ_SHIFT);
884 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
885 	val &= BRGPHY_AUXCTL_MISC_DATA_MASK;
886 	if (sc->mii_flags & MIIF_RX_DELAY)
887 		val |= BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
888 	else
889 		val &= ~BRGPHY_AUXCTL_MISC_RGMII_SKEW_EN;
890 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, BRGPHY_AUXCTL_MISC_WRITE_EN |
891 	    BRGPHY_AUXCTL_SHADOW_MISC | val);
892 
893 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_CLK_CTRL);
894 	val = PHY_READ(sc, BRGPHY_MII_SHADOW_1C);
895 	val &= BRGPHY_SHADOW_1C_DATA_MASK;
896 	if (sc->mii_flags & MIIF_TX_DELAY)
897 		val |= BRGPHY_SHADOW_1C_GTXCLK_EN;
898 	else
899 		val &= ~BRGPHY_SHADOW_1C_GTXCLK_EN;
900 	PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C, BRGPHY_SHADOW_1C_WRITE_EN |
901 	    BRGPHY_SHADOW_1C_CLK_CTRL | val);
902 }
903 
904 static void
905 brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
906 {
907 	uint32_t	val;
908 
909 	/* Set or clear jumbo frame settings in the PHY. */
910 	if (mtu > ETHER_MAX_LEN) {
911 		if (sc->mii_mpd_model == MII_MODEL_BROADCOM_BCM5401) {
912 			/* BCM5401 PHY cannot read-modify-write. */
913 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
914 		} else {
915 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
916 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
917 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
918 			    val | BRGPHY_AUXCTL_LONG_PKT);
919 		}
920 
921 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
922 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
923 		    val | BRGPHY_PHY_EXTCTL_HIGH_LA);
924 	} else {
925 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
926 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
927 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
928 		    val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
929 
930 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
931 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
932 			val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
933 	}
934 }
935 
936 static void
937 brgphy_reset(struct mii_softc *sc)
938 {
939 	struct bge_softc *bge_sc = NULL;
940 	struct bce_softc *bce_sc = NULL;
941 	if_t ifp;
942 	int i, val;
943 
944 	/*
945 	 * Perform a reset.  Note that at least some Broadcom PHYs default to
946 	 * being powered down as well as isolated after a reset but don't work
947 	 * if one or both of these bits are cleared.  However, they just work
948 	 * fine if both bits remain set, so we don't use mii_phy_reset() here.
949 	 */
950 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET);
951 
952 	/* Wait 100ms for it to complete. */
953 	for (i = 0; i < 100; i++) {
954 		if ((PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_RESET) == 0)
955 			break;
956 		DELAY(1000);
957 	}
958 
959 	/* Handle any PHY specific procedures following the reset. */
960 	switch (sc->mii_mpd_oui) {
961 	case MII_OUI_BROADCOM:
962 		switch (sc->mii_mpd_model) {
963 		case MII_MODEL_BROADCOM_BCM5400:
964 			bcm5401_load_dspcode(sc);
965 			break;
966 		case MII_MODEL_BROADCOM_BCM5401:
967 			if (sc->mii_mpd_rev == 1 || sc->mii_mpd_rev == 3)
968 				bcm5401_load_dspcode(sc);
969 			break;
970 		case MII_MODEL_BROADCOM_BCM5411:
971 			bcm5411_load_dspcode(sc);
972 			break;
973 		case MII_MODEL_BROADCOM_BCM54K2:
974 			bcm54k2_load_dspcode(sc);
975 			break;
976 		}
977 		break;
978 	case MII_OUI_BROADCOM3:
979 		switch (sc->mii_mpd_model) {
980 		case MII_MODEL_BROADCOM3_BCM5717C:
981 		case MII_MODEL_BROADCOM3_BCM5719C:
982 		case MII_MODEL_BROADCOM3_BCM5720C:
983 		case MII_MODEL_BROADCOM3_BCM57765:
984 			return;
985 		}
986 		break;
987 	case MII_OUI_BROADCOM4:
988 		return;
989 	}
990 
991 	ifp = sc->mii_pdata->mii_ifp;
992 
993 	/* Find the driver associated with this PHY. */
994 	if (mii_phy_mac_match(sc, "bge"))
995 		bge_sc = mii_phy_mac_softc(sc);
996 	else if (mii_phy_mac_match(sc, "bce"))
997 		bce_sc = mii_phy_mac_softc(sc);
998 
999 	if (bge_sc) {
1000 		/* Fix up various bugs */
1001 		if (bge_sc->bge_phy_flags & BGE_PHY_5704_A0_BUG)
1002 			brgphy_fixup_5704_a0_bug(sc);
1003 		if (bge_sc->bge_phy_flags & BGE_PHY_ADC_BUG)
1004 			brgphy_fixup_adc_bug(sc);
1005 		if (bge_sc->bge_phy_flags & BGE_PHY_ADJUST_TRIM)
1006 			brgphy_fixup_adjust_trim(sc);
1007 		if (bge_sc->bge_phy_flags & BGE_PHY_BER_BUG)
1008 			brgphy_fixup_ber_bug(sc);
1009 		if (bge_sc->bge_phy_flags & BGE_PHY_CRC_BUG)
1010 			brgphy_fixup_crc_bug(sc);
1011 		if (bge_sc->bge_phy_flags & BGE_PHY_JITTER_BUG)
1012 			brgphy_fixup_jitter_bug(sc);
1013 
1014 		if (bge_sc->bge_flags & BGE_FLAG_JUMBO)
1015 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1016 
1017 		if ((bge_sc->bge_phy_flags & BGE_PHY_NO_WIRESPEED) == 0)
1018 			brgphy_ethernet_wirespeed(sc);
1019 
1020 		/* Enable Link LED on Dell boxes */
1021 		if (bge_sc->bge_phy_flags & BGE_PHY_NO_3LED) {
1022 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
1023 			    PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) &
1024 			    ~BRGPHY_PHY_EXTCTL_3_LED);
1025 		}
1026 
1027 		/* Adjust output voltage (From Linux driver) */
1028 		if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5906)
1029 			PHY_WRITE(sc, BRGPHY_MII_EPHY_PTEST, 0x12);
1030 	} else if (bce_sc) {
1031 		if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5708 &&
1032 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1033 			/* Store autoneg capabilities/results in digital block (Page 0) */
1034 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG3_PG2);
1035 			PHY_WRITE(sc, BRGPHY_5708S_PG2_DIGCTL_3_0,
1036 				BRGPHY_5708S_PG2_DIGCTL_3_0_USE_IEEE);
1037 			PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
1038 
1039 			/* Enable fiber mode and autodetection */
1040 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL1,
1041 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL1) |
1042 				BRGPHY_5708S_PG0_1000X_CTL1_AUTODET_EN |
1043 				BRGPHY_5708S_PG0_1000X_CTL1_FIBER_MODE);
1044 
1045 			/* Enable parallel detection */
1046 			PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL2,
1047 				PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL2) |
1048 				BRGPHY_5708S_PG0_1000X_CTL2_PAR_DET_EN);
1049 
1050 			/* Advertise 2.5G support through next page during autoneg */
1051 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1052 				PHY_WRITE(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1,
1053 					PHY_READ(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1) |
1054 					BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G);
1055 
1056 			/* Increase TX signal amplitude */
1057 			if ((BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_A0) ||
1058 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B0) ||
1059 			    (BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B1)) {
1060 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1061 					BRGPHY_5708S_TX_MISC_PG5);
1062 				PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL1,
1063 					PHY_READ(sc, BRGPHY_5708S_PG5_TXACTL1) & ~0x30);
1064 				PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1065 					BRGPHY_5708S_DIG_PG0);
1066 			}
1067 
1068 			/* Backplanes use special driver/pre-driver/pre-emphasis values. */
1069 			if ((bce_sc->bce_shared_hw_cfg & BCE_SHARED_HW_CFG_PHY_BACKPLANE) &&
1070 				(bce_sc->bce_port_hw_cfg & BCE_PORT_HW_CFG_CFG_TXCTL3_MASK)) {
1071 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1072 						BRGPHY_5708S_TX_MISC_PG5);
1073 					PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL3,
1074 						bce_sc->bce_port_hw_cfg &
1075 						BCE_PORT_HW_CFG_CFG_TXCTL3_MASK);
1076 					PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
1077 						BRGPHY_5708S_DIG_PG0);
1078 			}
1079 		} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709 &&
1080 			(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
1081 			/* Select the SerDes Digital block of the AN MMD. */
1082 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_SERDES_DIG);
1083 			val = PHY_READ(sc, BRGPHY_SERDES_DIG_1000X_CTL1);
1084 			val &= ~BRGPHY_SD_DIG_1000X_CTL1_AUTODET;
1085 			val |= BRGPHY_SD_DIG_1000X_CTL1_FIBER;
1086 			PHY_WRITE(sc, BRGPHY_SERDES_DIG_1000X_CTL1, val);
1087 
1088 			/* Select the Over 1G block of the AN MMD. */
1089 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_OVER_1G);
1090 
1091 			/* Enable autoneg "Next Page" to advertise 2.5G support. */
1092 			val = PHY_READ(sc, BRGPHY_OVER_1G_UNFORMAT_PG1);
1093 			if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
1094 				val |= BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1095 			else
1096 				val &= ~BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
1097 			PHY_WRITE(sc, BRGPHY_OVER_1G_UNFORMAT_PG1, val);
1098 
1099 			/* Select the Multi-Rate Backplane Ethernet block of the AN MMD. */
1100 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_MRBE);
1101 
1102 			/* Enable MRBE speed autoneg. */
1103 			val = PHY_READ(sc, BRGPHY_MRBE_MSG_PG5_NP);
1104 			val |= BRGPHY_MRBE_MSG_PG5_NP_MBRE |
1105 			    BRGPHY_MRBE_MSG_PG5_NP_T2;
1106 			PHY_WRITE(sc, BRGPHY_MRBE_MSG_PG5_NP, val);
1107 
1108 			/* Select the Clause 73 User B0 block of the AN MMD. */
1109 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_CL73_USER_B0);
1110 
1111 			/* Enable MRBE speed autoneg. */
1112 			PHY_WRITE(sc, BRGPHY_CL73_USER_B0_MBRE_CTL1,
1113 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_NP_AFT_BP |
1114 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_STA_MGR |
1115 			    BRGPHY_CL73_USER_B0_MBRE_CTL1_ANEG);
1116 
1117 			/* Restore IEEE0 block (assumed in all brgphy(4) code). */
1118 			PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
1119         } else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709) {
1120 			if ((BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Ax) ||
1121 				(BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Bx))
1122 				brgphy_fixup_disable_early_dac(sc);
1123 
1124 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1125 			brgphy_ethernet_wirespeed(sc);
1126 		} else {
1127 			brgphy_fixup_ber_bug(sc);
1128 			brgphy_jumbo_settings(sc, if_getmtu(ifp));
1129 			brgphy_ethernet_wirespeed(sc);
1130 		}
1131 	}
1132 }
1133