3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
32 * $FreeBSD: src/sys/dev/mii/brgphy.c,v 1.1.2.7 2003/05/11 18:00:55 ps Exp $
33 * $DragonFly: src/sys/dev/netif/mii_layer/brgphy.c,v 1.4 2004/02/10 21:14:14 hmp Exp $
35 * $FreeBSD: src/sys/dev/mii/brgphy.c,v 1.1.2.7 2003/05/11 18:00:55 ps Exp $
39 * Driver for the Broadcom BCR5400 1000baseTX PHY. Speed is always
40 * 1000mbps; all we need to negotiate here is full or half duplex.
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/socket.h>
49 #include <machine/bus.h>
50 #include <machine/clock.h>
53 #include <net/if_media.h>
54 #include <net/if_arp.h>
60 #include "brgphyreg.h"
61 #include <dev/netif/bge/if_bgereg.h>
63 #include "miibus_if.h"
65 static int brgphy_probe(device_t);
66 static int brgphy_attach(device_t);
67 static int brgphy_detach(device_t);
69 static device_method_t brgphy_methods[] = {
70 /* device interface */
71 DEVMETHOD(device_probe, brgphy_probe),
72 DEVMETHOD(device_attach, brgphy_attach),
73 DEVMETHOD(device_detach, brgphy_detach),
74 DEVMETHOD(device_shutdown, bus_generic_shutdown),
78 static devclass_t brgphy_devclass;
80 static driver_t brgphy_driver = {
83 sizeof(struct mii_softc)
86 DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
88 static int brgphy_service(struct mii_softc *, struct mii_data *, int);
89 static void brgphy_status(struct mii_softc *);
90 static int brgphy_mii_phy_auto(struct mii_softc *);
91 static void brgphy_reset(struct mii_softc *);
92 static void brgphy_loop(struct mii_softc *);
93 static void bcm5401_load_dspcode(struct mii_softc *);
94 static void bcm5411_load_dspcode(struct mii_softc *);
95 static void bcm5703_load_dspcode(struct mii_softc *);
96 static int brgphy_mii_model;
98 static int brgphy_probe(dev)
101 struct mii_attach_args *ma;
103 ma = device_get_ivars(dev);
105 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
106 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5400) {
107 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5400);
111 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
112 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5401) {
113 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5401);
117 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
118 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5411) {
119 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5411);
123 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
124 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5701) {
125 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5701);
129 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
130 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5703) {
131 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5703);
135 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
136 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5704) {
137 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5704);
141 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
142 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5705) {
143 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5705);
154 struct mii_softc *sc;
155 struct mii_attach_args *ma;
156 struct mii_data *mii;
157 const char *sep = "";
159 sc = device_get_softc(dev);
160 ma = device_get_ivars(dev);
161 sc->mii_dev = device_get_parent(dev);
162 mii = device_get_softc(sc->mii_dev);
163 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
165 sc->mii_inst = mii->mii_instance;
166 sc->mii_phy = ma->mii_phyno;
167 sc->mii_service = brgphy_service;
170 sc->mii_flags |= MIIF_NOISOLATE;
173 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
174 #define PRINT(s) printf("%s%s", sep, s); sep = ", "
176 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
179 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
180 BMCR_LOOP|BMCR_S100);
183 brgphy_mii_model = MII_MODEL(ma->mii_id2);
186 sc->mii_capabilities =
187 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
188 device_printf(dev, " ");
189 if (sc->mii_capabilities & BMSR_MEDIAMASK)
190 mii_add_media(mii, (sc->mii_capabilities & ~BMSR_ANEG),
192 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_TX, 0, sc->mii_inst),
194 PRINT(", 1000baseTX");
195 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_TX, IFM_FDX, sc->mii_inst), 0);
196 PRINT("1000baseTX-FDX");
197 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
204 MIIBUS_MEDIAINIT(sc->mii_dev);
212 struct mii_softc *sc;
213 struct mii_data *mii;
215 sc = device_get_softc(dev);
216 mii = device_get_softc(device_get_parent(dev));
218 LIST_REMOVE(sc, mii_list);
224 brgphy_service(sc, mii, cmd)
225 struct mii_softc *sc;
226 struct mii_data *mii;
229 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
235 * If we're not polling our PHY instance, just return.
237 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
243 * If the media indicates a different PHY instance,
246 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
247 reg = PHY_READ(sc, MII_BMCR);
248 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
253 * If the interface is not up, don't do anything.
255 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
258 brgphy_reset(sc); /* XXX hardware bug work-around */
260 switch (IFM_SUBTYPE(ife->ifm_media)) {
264 * If we're already in auto mode, just return.
266 if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
269 (void) brgphy_mii_phy_auto(sc);
272 speed = BRGPHY_S1000;
281 if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
282 speed |= BRGPHY_BMCR_FDX;
283 gig = BRGPHY_1000CTL_AFD;
285 gig = BRGPHY_1000CTL_AHD;
288 PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
289 PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);
290 PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
292 if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_TX)
295 PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
296 PHY_WRITE(sc, BRGPHY_MII_BMCR,
297 speed|BRGPHY_BMCR_AUTOEN|BRGPHY_BMCR_STARTNEG);
299 if (brgphy_mii_model != MII_MODEL_xxBROADCOM_BCM5701)
303 * When settning the link manually, one side must
304 * be the master and the other the slave. However
305 * ifmedia doesn't give us a good way to specify
306 * this, so we fake it by using one of the LINK
307 * flags. If LINK0 is set, we program the PHY to
308 * be a master, otherwise it's a slave.
310 if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
311 PHY_WRITE(sc, BRGPHY_MII_1000CTL,
312 gig|BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
314 PHY_WRITE(sc, BRGPHY_MII_1000CTL,
315 gig|BRGPHY_1000CTL_MSE);
320 PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
331 * If we're not currently selected, just return.
333 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
337 * Only used for autonegotiation.
339 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
343 * Is the interface even up?
345 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
349 * Check to see if we have link. If we do, we don't
350 * need to restart the autonegotiation process. Read
351 * the BMSR twice in case it's latched.
353 reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
354 if (reg & BRGPHY_AUXSTS_LINK)
358 * Only retry autonegotiation every 5 seconds.
360 if (++sc->mii_ticks != 5)
364 brgphy_mii_phy_auto(sc);
368 /* Update the media status. */
372 * Callback if something changed. Note that we need to poke
373 * the DSP on the Broadcom PHYs if the media changes.
375 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
376 MIIBUS_STATCHG(sc->mii_dev);
377 sc->mii_active = mii->mii_media_active;
378 switch (brgphy_mii_model) {
379 case MII_MODEL_xxBROADCOM_BCM5401:
380 bcm5401_load_dspcode(sc);
382 case MII_MODEL_xxBROADCOM_BCM5411:
383 bcm5411_load_dspcode(sc);
392 struct mii_softc *sc;
394 struct mii_data *mii = sc->mii_pdata;
395 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
398 mii->mii_media_status = IFM_AVALID;
399 mii->mii_media_active = IFM_ETHER;
401 bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
402 if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK)
403 mii->mii_media_status |= IFM_ACTIVE;
405 bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
407 if (bmcr & BRGPHY_BMCR_LOOP)
408 mii->mii_media_active |= IFM_LOOP;
410 if (bmcr & BRGPHY_BMCR_AUTOEN) {
411 if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) {
412 /* Erg, still trying, I guess... */
413 mii->mii_media_active |= IFM_NONE;
417 switch (PHY_READ(sc, BRGPHY_MII_AUXSTS) &
418 BRGPHY_AUXSTS_AN_RES) {
419 case BRGPHY_RES_1000FD:
420 mii->mii_media_active |= IFM_1000_TX | IFM_FDX;
422 case BRGPHY_RES_1000HD:
423 mii->mii_media_active |= IFM_1000_TX | IFM_HDX;
425 case BRGPHY_RES_100FD:
426 mii->mii_media_active |= IFM_100_TX | IFM_FDX;
428 case BRGPHY_RES_100T4:
429 mii->mii_media_active |= IFM_100_T4;
431 case BRGPHY_RES_100HD:
432 mii->mii_media_active |= IFM_100_TX | IFM_HDX;
434 case BRGPHY_RES_10FD:
435 mii->mii_media_active |= IFM_10_T | IFM_FDX;
437 case BRGPHY_RES_10HD:
438 mii->mii_media_active |= IFM_10_T | IFM_HDX;
441 mii->mii_media_active |= IFM_NONE;
447 mii->mii_media_active = ife->ifm_media;
454 brgphy_mii_phy_auto(mii)
455 struct mii_softc *mii;
461 ktcr = BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD;
462 if (brgphy_mii_model == MII_MODEL_xxBROADCOM_BCM5701)
463 ktcr |= BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC;
464 PHY_WRITE(mii, BRGPHY_MII_1000CTL, ktcr);
465 ktcr = PHY_READ(mii, BRGPHY_MII_1000CTL);
467 PHY_WRITE(mii, BRGPHY_MII_ANAR,
468 BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
470 PHY_WRITE(mii, BRGPHY_MII_BMCR,
471 BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
472 PHY_WRITE(mii, BRGPHY_MII_IMR, 0xFF00);
473 return (EJUSTRETURN);
477 brgphy_loop(struct mii_softc *sc)
482 PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
483 for (i = 0; i < 15000; i++) {
484 bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
485 if (!(bmsr & BRGPHY_BMSR_LINK)) {
487 device_printf(sc->mii_dev, "looped %d\n", i);
495 /* Turn off tap power management on 5401. */
497 bcm5401_load_dspcode(struct mii_softc *sc)
499 static const struct {
503 { BRGPHY_MII_AUXCTL, 0x0c20 },
504 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 },
505 { BRGPHY_MII_DSP_RW_PORT, 0x1804 },
506 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 },
507 { BRGPHY_MII_DSP_RW_PORT, 0x1204 },
508 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 },
509 { BRGPHY_MII_DSP_RW_PORT, 0x0132 },
510 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 },
511 { BRGPHY_MII_DSP_RW_PORT, 0x0232 },
512 { BRGPHY_MII_DSP_ADDR_REG, 0x201f },
513 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 },
518 for (i = 0; dspcode[i].reg != 0; i++)
519 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
524 bcm5411_load_dspcode(struct mii_softc *sc)
526 static const struct {
537 for (i = 0; dspcode[i].reg != 0; i++)
538 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
542 bcm5703_load_dspcode(struct mii_softc *sc)
544 static const struct {
548 { BRGPHY_MII_AUXCTL, 0x0c00 },
549 { BRGPHY_MII_DSP_ADDR_REG, 0x201f },
550 { BRGPHY_MII_DSP_RW_PORT, 0x2aaa },
555 for (i = 0; dspcode[i].reg != 0; i++)
556 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
560 bcm5704_load_dspcode(struct mii_softc *sc)
562 static const struct {
572 for (i = 0; dspcode[i].reg != 0; i++)
573 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
577 brgphy_reset(struct mii_softc *sc)
581 struct bge_softc *bge_sc;
585 switch (brgphy_mii_model) {
586 case MII_MODEL_xxBROADCOM_BCM5401:
587 bcm5401_load_dspcode(sc);
589 case MII_MODEL_xxBROADCOM_BCM5411:
590 bcm5411_load_dspcode(sc);
592 case MII_MODEL_xxBROADCOM_BCM5703:
593 bcm5703_load_dspcode(sc);
595 case MII_MODEL_xxBROADCOM_BCM5704:
596 bcm5704_load_dspcode(sc);
600 ifp = sc->mii_pdata->mii_ifp;
601 bge_sc = ifp->if_softc;
604 * Don't enable Ethernet@WireSpeed for the 5700 or the
605 * 5705 A1 and A2 chips. Make sure we only do this test
606 * on "bge" NICs, since other drivers may use this same
609 if (strcmp(ifp->if_dname, "bge") == 0 &&
610 (bge_sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
611 bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A1 ||
612 bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A2))
615 /* Enable Ethernet@WireSpeed. */
616 PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
617 val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
618 PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
620 /* Enable Link LED on Dell boxes */
621 if (bge_sc->bge_no_3_led) {
622 PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
623 PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL)
624 & ~BRGPHY_PHY_EXTCTL_3_LED);