xref: /dragonfly/sys/dev/netif/mii_layer/brgphy.c (revision 6b5c5d0d)
1 /*	$OpenBSD: brgphy.c,v 1.48 2006/05/20 23:03:53 brad Exp $	*/
2 
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  * $FreeBSD: src/sys/dev/mii/brgphy.c,v 1.1.2.7 2003/05/11 18:00:55 ps Exp $
35  * $DragonFly: src/sys/dev/netif/mii_layer/brgphy.c,v 1.19 2007/06/19 14:59:40 sephe Exp $
36  */
37 
38 /*
39  * Driver for the Broadcom BCR5400 1000baseTX PHY. Speed is always
40  * 1000mbps; all we need to negotiate here is full or half duplex.
41  */
42 
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/socket.h>
47 #include <sys/bus.h>
48 #include <sys/sysctl.h>
49 
50 #include <net/ethernet.h>
51 #include <net/if.h>
52 #include <net/if_media.h>
53 #include <net/if_arp.h>
54 
55 #include "mii.h"
56 #include "miivar.h"
57 #include "miidevs.h"
58 
59 #include "brgphyreg.h"
60 #include <dev/netif/bge/if_bgereg.h>
61 
62 #include "miibus_if.h"
63 
64 static int brgphy_probe(device_t);
65 static int brgphy_attach(device_t);
66 
67 static const struct mii_phydesc brgphys[] = {
68 	MII_PHYDESC(xxBROADCOM,	BCM5400),
69 	MII_PHYDESC(xxBROADCOM,	BCM5401),
70 	MII_PHYDESC(xxBROADCOM,	BCM5411),
71 	MII_PHYDESC(xxBROADCOM,	BCM5421),
72 	MII_PHYDESC(xxBROADCOM,	BCM54K2),
73 	MII_PHYDESC(xxBROADCOM,	BCM5462),
74 
75 	MII_PHYDESC(xxBROADCOM,	BCM5701),
76 	MII_PHYDESC(xxBROADCOM,	BCM5703),
77 	MII_PHYDESC(xxBROADCOM,	BCM5704),
78 	MII_PHYDESC(xxBROADCOM,	BCM5705),
79 
80 	MII_PHYDESC(xxBROADCOM,	BCM5714),
81 	MII_PHYDESC(xxBROADCOM,	BCM5750),
82 	MII_PHYDESC(xxBROADCOM,	BCM5752),
83 	MII_PHYDESC(xxBROADCOM2,BCM5755),
84 	MII_PHYDESC(xxBROADCOM,	BCM5780),
85 	MII_PHYDESC(xxBROADCOM2,BCM5787),
86 
87 	MII_PHYDESC(xxBROADCOM,	BCM5706C),
88 	MII_PHYDESC(xxBROADCOM,	BCM5708C),
89 
90 	MII_PHYDESC_NULL
91 };
92 
93 static device_method_t brgphy_methods[] = {
94 	/* device interface */
95 	DEVMETHOD(device_probe,		brgphy_probe),
96 	DEVMETHOD(device_attach,	brgphy_attach),
97 	DEVMETHOD(device_detach,	ukphy_detach),
98 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
99 	{ 0, 0 }
100 };
101 
102 static devclass_t brgphy_devclass;
103 
104 static driver_t brgphy_driver = {
105 	"brgphy",
106 	brgphy_methods,
107 	sizeof(struct mii_softc)
108 };
109 
110 DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
111 
112 static int	brgphy_service(struct mii_softc *, struct mii_data *, int);
113 static void 	brgphy_status(struct mii_softc *);
114 static void	brgphy_mii_phy_auto(struct mii_softc *);
115 static void	brgphy_reset(struct mii_softc *);
116 static void	brgphy_loop(struct mii_softc *);
117 
118 static void	brgphy_bcm5401_dspcode(struct mii_softc *);
119 static void	brgphy_bcm5411_dspcode(struct mii_softc *);
120 static void	brgphy_bcm5421_dspcode(struct mii_softc *);
121 static void	brgphy_bcm54k2_dspcode(struct mii_softc *);
122 
123 static void	brgphy_adc_bug(struct mii_softc *);
124 static void	brgphy_5704_a0_bug(struct mii_softc *);
125 static void	brgphy_ber_bug(struct mii_softc *);
126 static void	brgphy_crc_bug(struct mii_softc *);
127 
128 static void	brgphy_jumbo_settings(struct mii_softc *, u_long);
129 static void	brgphy_eth_wirespeed(struct mii_softc *);
130 
131 static int
132 brgphy_probe(device_t dev)
133 {
134 	struct mii_attach_args *ma = device_get_ivars(dev);
135 	const struct mii_phydesc *mpd;
136 
137 	mpd = mii_phy_match(ma, brgphys);
138 	if (mpd != NULL) {
139 		device_set_desc(dev, mpd->mpd_name);
140 		return (0);
141 	}
142 	return(ENXIO);
143 }
144 
145 static int
146 brgphy_attach(device_t dev)
147 {
148 	struct mii_softc *sc;
149 	struct mii_attach_args *ma;
150 	struct mii_data *mii;
151 
152 	sc = device_get_softc(dev);
153 	ma = device_get_ivars(dev);
154 	mii_softc_init(sc, ma);
155 	sc->mii_dev = device_get_parent(dev);
156 	mii = device_get_softc(sc->mii_dev);
157 	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
158 
159 	sc->mii_inst = mii->mii_instance;
160 	sc->mii_service = brgphy_service;
161 	sc->mii_reset = brgphy_reset;
162 	sc->mii_pdata = mii;
163 
164 	sc->mii_flags |= MIIF_NOISOLATE;
165 	mii->mii_instance++;
166 
167 	brgphy_reset(sc);
168 
169 #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
170 
171 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
172 	    MII_MEDIA_NONE);
173 #if 0
174 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
175 	    MII_MEDIA_100_TX);
176 #endif
177 
178 #undef ADD
179 
180 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
181 	if (sc->mii_capabilities & BMSR_EXTSTAT)
182 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
183 
184 	device_printf(dev, " ");
185 	if ((sc->mii_capabilities & BMSR_MEDIAMASK) ||
186 	    (sc->mii_extcapabilities & EXTSR_MEDIAMASK))
187 		mii_phy_add_media(sc);
188 	else
189 		kprintf("no media present");
190 	kprintf("\n");
191 
192 	MIIBUS_MEDIAINIT(sc->mii_dev);
193 	return(0);
194 }
195 
196 static int
197 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
198 {
199 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
200 	int reg, speed, gig;
201 
202 	switch (cmd) {
203 	case MII_POLLSTAT:
204 		/*
205 		 * If we're not polling our PHY instance, just return.
206 		 */
207 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
208 			return (0);
209 		break;
210 
211 	case MII_MEDIACHG:
212 		/*
213 		 * If the media indicates a different PHY instance,
214 		 * isolate ourselves.
215 		 */
216 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
217 			reg = PHY_READ(sc, MII_BMCR);
218 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
219 			return (0);
220 		}
221 
222 		/*
223 		 * If the interface is not up, don't do anything.
224 		 */
225 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
226 			break;
227 
228 		brgphy_reset(sc);	/* XXX hardware bug work-around */
229 
230 		switch (IFM_SUBTYPE(ife->ifm_media)) {
231 		case IFM_AUTO:
232 #ifdef foo
233 			/*
234 			 * If we're already in auto mode, just return.
235 			 */
236 			if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
237 				return (0);
238 #endif
239 			brgphy_mii_phy_auto(sc);
240 			break;
241 		case IFM_1000_T:
242 			speed = BRGPHY_S1000;
243 			goto setit;
244 		case IFM_100_TX:
245 			speed = BRGPHY_S100;
246 			goto setit;
247 		case IFM_10_T:
248 			speed = BRGPHY_S10;
249 setit:
250 			brgphy_loop(sc);
251 			if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
252 				speed |= BRGPHY_BMCR_FDX;
253 				gig = BRGPHY_1000CTL_AFD;
254 			} else {
255 				gig = BRGPHY_1000CTL_AHD;
256 			}
257 
258 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
259 			PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);
260 			PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
261 
262 			if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
263 				break;
264 
265 			PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
266 			PHY_WRITE(sc, BRGPHY_MII_BMCR,
267 			    speed|BRGPHY_BMCR_AUTOEN|BRGPHY_BMCR_STARTNEG);
268 
269 			if (sc->mii_model != MII_MODEL_xxBROADCOM_BCM5701)
270 				break;
271 
272 			/*
273 			 * When settning the link manually, one side must
274 			 * be the master and the other the slave. However
275 			 * ifmedia doesn't give us a good way to specify
276 			 * this, so we fake it by using one of the LINK
277 			 * flags. If LINK0 is set, we program the PHY to
278 			 * be a master, otherwise it's a slave.
279 			 */
280 			if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
281 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
282 				    gig|BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
283 			} else {
284 				PHY_WRITE(sc, BRGPHY_MII_1000CTL,
285 				    gig|BRGPHY_1000CTL_MSE);
286 			}
287 			break;
288 #ifdef foo
289 		case IFM_NONE:
290 			PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
291 			break;
292 #endif
293 		case IFM_100_T4:
294 		default:
295 			return (EINVAL);
296 		}
297 		break;
298 
299 	case MII_TICK:
300 		/*
301 		 * If we're not currently selected, just return.
302 		 */
303 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
304 			return (0);
305 
306 		/*
307 		 * Is the interface even up?
308 		 */
309 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
310 			return (0);
311 
312 		/*
313 		 * Only used for autonegotiation.
314 		 */
315 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
316 			break;
317 
318 		/*
319 		 * Check to see if we have link.  If we do, we don't
320 		 * need to restart the autonegotiation process.  Read
321 		 * the BMSR twice in case it's latched.
322 		 */
323 		reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
324 		if (reg & BRGPHY_AUXSTS_LINK)
325 			break;
326 
327 		/*
328 		 * Only retry autonegotiation every 5 seconds.
329 		 */
330 		if (++sc->mii_ticks <= sc->mii_anegticks)
331 			break;
332 
333 		sc->mii_ticks = 0;
334 		brgphy_mii_phy_auto(sc);
335 		break;
336 	}
337 
338 	/* Update the media status. */
339 	brgphy_status(sc);
340 
341 	/*
342 	 * Callback if something changed. Note that we need to poke
343 	 * the DSP on the Broadcom PHYs if the media changes.
344 	 */
345 	if (sc->mii_media_active != mii->mii_media_active ||
346 	    sc->mii_media_status != mii->mii_media_status ||
347 	    cmd == MII_MEDIACHG) {
348 		switch (sc->mii_model) {
349 		case MII_MODEL_xxBROADCOM_BCM5400:
350 			brgphy_bcm5401_dspcode(sc);
351 			break;
352 		case MII_MODEL_xxBROADCOM_BCM5401:
353 			if (sc->mii_rev == 1 || sc->mii_rev == 3)
354 				brgphy_bcm5401_dspcode(sc);
355 			break;
356 		case MII_MODEL_xxBROADCOM_BCM5411:
357 			brgphy_bcm5411_dspcode(sc);
358 			break;
359 		}
360 	}
361 	mii_phy_update(sc, cmd);
362 	return (0);
363 }
364 
365 static void
366 brgphy_status(struct mii_softc *sc)
367 {
368 	struct mii_data *mii = sc->mii_pdata;
369 	int bmcr, aux;
370 
371 	mii->mii_media_status = IFM_AVALID;
372 	mii->mii_media_active = IFM_ETHER;
373 
374 	aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
375 	if (aux & BRGPHY_AUXSTS_LINK)
376 		mii->mii_media_status |= IFM_ACTIVE;
377 
378 	bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
379 	if (bmcr & BRGPHY_BMCR_LOOP)
380 		mii->mii_media_active |= IFM_LOOP;
381 
382 	if (bmcr & BRGPHY_BMCR_AUTOEN) {
383 		if ((PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_ACOMP) == 0) {
384 			/* Erg, still trying, I guess... */
385 			mii->mii_media_active |= IFM_NONE;
386 			return;
387 		}
388 
389 		switch (aux & BRGPHY_AUXSTS_AN_RES) {
390 		case BRGPHY_RES_1000FD:
391 			mii->mii_media_active |= IFM_1000_T | IFM_FDX;
392 			break;
393 		case BRGPHY_RES_1000HD:
394 			mii->mii_media_active |= IFM_1000_T | IFM_HDX;
395 			break;
396 		case BRGPHY_RES_100FD:
397 			mii->mii_media_active |= IFM_100_TX | IFM_FDX;
398 			break;
399 		case BRGPHY_RES_100T4:
400 			mii->mii_media_active |= IFM_100_T4;
401 			break;
402 		case BRGPHY_RES_100HD:
403 			mii->mii_media_active |= IFM_100_TX | IFM_HDX;
404 			break;
405 		case BRGPHY_RES_10FD:
406 			mii->mii_media_active |= IFM_10_T | IFM_FDX;
407 			break;
408 		case BRGPHY_RES_10HD:
409 			mii->mii_media_active |= IFM_10_T | IFM_HDX;
410 			break;
411 		default:
412 			mii->mii_media_active |= IFM_NONE;
413 			break;
414 		}
415 	} else {
416 		mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;
417 	}
418 }
419 
420 
421 static void
422 brgphy_mii_phy_auto(struct mii_softc *sc)
423 {
424 	int ktcr = 0;
425 
426 	brgphy_loop(sc);
427 	brgphy_reset(sc);
428 	ktcr = BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD;
429 	if (sc->mii_model == MII_MODEL_xxBROADCOM_BCM5701)
430 		ktcr |= BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC;
431 	PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
432 	ktcr = PHY_READ(sc, BRGPHY_MII_1000CTL);
433 	DELAY(1000);
434 	PHY_WRITE(sc, BRGPHY_MII_ANAR,
435 	    BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA);
436 	DELAY(1000);
437 	PHY_WRITE(sc, BRGPHY_MII_BMCR,
438 	    BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
439 	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
440 }
441 
442 static void
443 brgphy_loop(struct mii_softc *sc)
444 {
445 	uint32_t bmsr;
446 	int i;
447 
448 	PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
449 	for (i = 0; i < 15000; i++) {
450 		bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
451 		if (!(bmsr & BRGPHY_BMSR_LINK))
452 			break;
453 		DELAY(10);
454 	}
455 }
456 
457 static void
458 brgphy_reset(struct mii_softc *sc)
459 {
460 	struct ifnet *ifp;
461 
462 	mii_phy_reset(sc);
463 
464 	switch (sc->mii_model) {
465 	case MII_MODEL_xxBROADCOM_BCM5400:
466 		brgphy_bcm5401_dspcode(sc);
467 			break;
468 	case MII_MODEL_xxBROADCOM_BCM5401:
469 		if (sc->mii_rev == 1 || sc->mii_rev == 3)
470 			brgphy_bcm5401_dspcode(sc);
471 		break;
472 	case MII_MODEL_xxBROADCOM_BCM5411:
473 		brgphy_bcm5411_dspcode(sc);
474 		break;
475 	case MII_MODEL_xxBROADCOM_BCM5421:
476 		brgphy_bcm5421_dspcode(sc);
477 		break;
478 	case MII_MODEL_xxBROADCOM_BCM54K2:
479 		brgphy_bcm54k2_dspcode(sc);
480 		break;
481 	}
482 
483 	ifp = sc->mii_pdata->mii_ifp;
484 	if (strncmp(ifp->if_xname, "bge", 3) == 0) {
485 		struct bge_softc *bge_sc = ifp->if_softc;
486 
487 		if (bge_sc->bge_flags & BGE_FLAG_ADC_BUG)
488 			brgphy_adc_bug(sc);
489 		if (bge_sc->bge_flags & BGE_FLAG_5704_A0_BUG)
490 			brgphy_5704_a0_bug(sc);
491 		if (bge_sc->bge_flags & BGE_FLAG_BER_BUG) {
492 			brgphy_ber_bug(sc);
493 		} else if (bge_sc->bge_flags & BGE_FLAG_JITTER_BUG) {
494 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x0c00);
495 			PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x000a);
496 
497 			if (bge_sc->bge_flags & BGE_FLAG_ADJUST_TRIM) {
498 				PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, 0x110b);
499 				PHY_WRITE(sc, BRGPHY_TEST1,
500 				    BRGPHY_TEST1_TRIM_EN | 0x4);
501 			} else {
502 				PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, 0x010b);
503 			}
504 
505 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x0400);
506 		}
507 		if (bge_sc->bge_flags & BGE_FLAG_CRC_BUG)
508 			brgphy_crc_bug(sc);
509 
510 		/* Set Jumbo frame settings in the PHY. */
511 		brgphy_jumbo_settings(sc, ifp->if_mtu);
512 
513 		/* Enable Ethernet@Wirespeed */
514 		if (bge_sc->bge_flags & BGE_FLAG_ETH_WIRESPEED)
515 			brgphy_eth_wirespeed(sc);
516 
517 		/* Enable Link LED on Dell boxes */
518 		if (bge_sc->bge_flags & BGE_FLAG_NO_3LED) {
519 			PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
520 			PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL)
521 				& ~BRGPHY_PHY_EXTCTL_3_LED);
522 		}
523 	} else if (strncmp(ifp->if_xname, "bce", 3) == 0) {
524 		brgphy_ber_bug(sc);
525 		brgphy_jumbo_settings(sc, ifp->if_mtu);
526 		brgphy_eth_wirespeed(sc);
527 	}
528 }
529 
530 /* Turn off tap power management on 5401. */
531 static void
532 brgphy_bcm5401_dspcode(struct mii_softc *sc)
533 {
534 	static const struct {
535 		int		reg;
536 		uint16_t	val;
537 	} dspcode[] = {
538 		{ BRGPHY_MII_AUXCTL,		0x0c20 },
539 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0012 },
540 		{ BRGPHY_MII_DSP_RW_PORT,	0x1804 },
541 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0013 },
542 		{ BRGPHY_MII_DSP_RW_PORT,	0x1204 },
543 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
544 		{ BRGPHY_MII_DSP_RW_PORT,	0x0132 },
545 		{ BRGPHY_MII_DSP_ADDR_REG,	0x8006 },
546 		{ BRGPHY_MII_DSP_RW_PORT,	0x0232 },
547 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
548 		{ BRGPHY_MII_DSP_RW_PORT,	0x0a20 },
549 		{ 0,				0 },
550 	};
551 	int i;
552 
553 	for (i = 0; dspcode[i].reg != 0; i++)
554 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
555 	DELAY(40);
556 }
557 
558 /* Setting some undocumented voltage */
559 static void
560 brgphy_bcm5411_dspcode(struct mii_softc *sc)
561 {
562 	static const struct {
563 		int		reg;
564 		uint16_t	val;
565 	} dspcode[] = {
566 		{ 0x1c,				0x8c23 },
567 		{ 0x1c,				0x8ca3 },
568 		{ 0x1c,				0x8c23 },
569 		{ 0,				0 },
570 	};
571 	int i;
572 
573 	for (i = 0; dspcode[i].reg != 0; i++)
574 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
575 }
576 
577 static void
578 brgphy_bcm5421_dspcode(struct mii_softc *sc)
579 {
580 	uint16_t data;
581 
582 	/* Set Class A mode */
583 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x1007);
584 	data = PHY_READ(sc, BRGPHY_MII_AUXCTL);
585 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, data | 0x0400);
586 
587 	/* Set FFE gamma override to -0.125 */
588 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x0007);
589 	data = PHY_READ(sc, BRGPHY_MII_AUXCTL);
590 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, data | 0x0800);
591 	PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x000a);
592 	data = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
593 	PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, data | 0x0200);
594 }
595 
596 static void
597 brgphy_bcm54k2_dspcode(struct mii_softc *sc)
598 {
599 	static const struct {
600 		int		reg;
601 		uint16_t	val;
602 	} dspcode[] = {
603 		{ 4,				0x01e1 },
604 		{ 9,				0x0300 },
605 		{ 0,				0 },
606 	};
607 	int i;
608 
609 	for (i = 0; dspcode[i].reg != 0; i++)
610 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
611 }
612 
613 static void
614 brgphy_adc_bug(struct mii_softc *sc)
615 {
616 	static const struct {
617 		int		reg;
618 		uint16_t	val;
619 	} dspcode[] = {
620 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
621 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
622 		{ BRGPHY_MII_DSP_RW_PORT,	0x2aaa },
623 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
624 		{ BRGPHY_MII_DSP_RW_PORT,	0x0323 },
625 		{ BRGPHY_MII_AUXCTL,		0x0400 },
626 		{ 0,				0 },
627 	};
628 	int i;
629 
630 	for (i = 0; dspcode[i].reg != 0; i++)
631 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
632 }
633 
634 static void
635 brgphy_5704_a0_bug(struct mii_softc *sc)
636 {
637 	static const struct {
638 		int		reg;
639 		u_int16_t	val;
640 	} dspcode[] = {
641 		{ 0x1c,				0x8d68 },
642 		{ 0x1c,				0x8d68 },
643 		{ 0,				0 },
644 	};
645 	int i;
646 
647 	for (i = 0; dspcode[i].reg != 0; i++)
648 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
649 }
650 
651 static void
652 brgphy_ber_bug(struct mii_softc *sc)
653 {
654 	static const struct {
655 		int		reg;
656 		uint16_t	val;
657 	} dspcode[] = {
658 		{ BRGPHY_MII_AUXCTL,		0x0c00 },
659 		{ BRGPHY_MII_DSP_ADDR_REG,	0x000a },
660 		{ BRGPHY_MII_DSP_RW_PORT,	0x310b },
661 		{ BRGPHY_MII_DSP_ADDR_REG,	0x201f },
662 		{ BRGPHY_MII_DSP_RW_PORT,	0x9506 },
663 		{ BRGPHY_MII_DSP_ADDR_REG,	0x401f },
664 		{ BRGPHY_MII_DSP_RW_PORT,	0x14e2 },
665 		{ BRGPHY_MII_AUXCTL,		0x0400 },
666 		{ 0,				0 },
667 	};
668 	int i;
669 
670 	for (i = 0; dspcode[i].reg != 0; i++)
671 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
672 }
673 
674 static void
675 brgphy_crc_bug(struct mii_softc *sc)
676 {
677 	static const struct {
678 		int		reg;
679 		uint16_t	val;
680 	} dspcode[] = {
681 		{ BRGPHY_MII_DSP_ADDR_REG,	0x0a75 },
682 		{ 0x1c,				0x8c68 },
683 		{ 0x1c,				0x8d68 },
684 		{ 0x1c,				0x8c68 },
685 		{ 0,				0 },
686 	};
687 	int i;
688 
689 	for (i = 0; dspcode[i].reg != 0; i++)
690 		PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
691 }
692 
693 static void
694 brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
695 {
696 	uint32_t val;
697 
698 	/* Set or clear jumbo frame settings in the PHY. */
699 	if (mtu > ETHER_MAX_LEN) {
700 		if (sc->mii_model == MII_MODEL_xxBROADCOM_BCM5401) {
701 			/* BCM5401 PHY cannot read-modify-write. */
702 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
703 		} else {
704 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
705 			val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
706 			PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
707 			    val | BRGPHY_AUXCTL_LONG_PKT);
708 		}
709 
710 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
711 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
712 		    val | BRGPHY_PHY_EXTCTL_HIGH_LA);
713 	} else {
714 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
715 		val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
716 		PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
717 		    val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
718 
719 		val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
720 		PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
721 		    val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
722 	}
723 }
724 
725 static void
726 brgphy_eth_wirespeed(struct mii_softc *sc)
727 {
728 	u_int32_t val;
729 
730 	/* Enable Ethernet@Wirespeed */
731 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
732 	val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
733 	PHY_WRITE(sc, BRGPHY_MII_AUXCTL, (val | (1 << 15) | (1 << 4)));
734 }
735