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tlphy.c revision 1.59.22.2
      1  1.59.22.1       tls /*	$NetBSD: tlphy.c,v 1.59.22.2 2014/08/20 00:03:41 tls Exp $	*/
      2        1.7   thorpej 
      3        1.7   thorpej /*-
      4       1.26   thorpej  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
      5        1.7   thorpej  * All rights reserved.
      6        1.7   thorpej  *
      7        1.7   thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8        1.7   thorpej  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9        1.7   thorpej  * NASA Ames Research Center.
     10        1.7   thorpej  *
     11        1.7   thorpej  * Redistribution and use in source and binary forms, with or without
     12        1.7   thorpej  * modification, are permitted provided that the following conditions
     13        1.7   thorpej  * are met:
     14        1.7   thorpej  * 1. Redistributions of source code must retain the above copyright
     15        1.7   thorpej  *    notice, this list of conditions and the following disclaimer.
     16        1.7   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     17        1.7   thorpej  *    notice, this list of conditions and the following disclaimer in the
     18        1.7   thorpej  *    documentation and/or other materials provided with the distribution.
     19        1.7   thorpej  *
     20        1.7   thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21        1.7   thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22        1.7   thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23        1.7   thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24        1.7   thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25        1.7   thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26        1.7   thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27        1.7   thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28        1.7   thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29        1.7   thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30        1.7   thorpej  * POSSIBILITY OF SUCH DAMAGE.
     31        1.7   thorpej  */
     32        1.7   thorpej 
     33        1.1    bouyer /*
     34        1.1    bouyer  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
     35        1.1    bouyer  *
     36        1.1    bouyer  * Redistribution and use in source and binary forms, with or without
     37        1.1    bouyer  * modification, are permitted provided that the following conditions
     38        1.1    bouyer  * are met:
     39        1.1    bouyer  * 1. Redistributions of source code must retain the above copyright
     40        1.1    bouyer  *    notice, this list of conditions and the following disclaimer.
     41        1.1    bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     42        1.1    bouyer  *    notice, this list of conditions and the following disclaimer in the
     43        1.1    bouyer  *    documentation and/or other materials provided with the distribution.
     44        1.1    bouyer  *
     45        1.1    bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     46        1.1    bouyer  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     47        1.1    bouyer  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     48        1.1    bouyer  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     49        1.1    bouyer  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     50        1.1    bouyer  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     51        1.1    bouyer  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     52        1.1    bouyer  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     53        1.1    bouyer  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     54        1.1    bouyer  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     55        1.1    bouyer  */
     56        1.1    bouyer 
     57        1.7   thorpej /*
     58        1.7   thorpej  * Driver for Texas Instruments's ThunderLAN PHYs
     59        1.7   thorpej  */
     60       1.33     lukem 
     61       1.33     lukem #include <sys/cdefs.h>
     62  1.59.22.1       tls __KERNEL_RCSID(0, "$NetBSD: tlphy.c,v 1.59.22.2 2014/08/20 00:03:41 tls Exp $");
     63        1.1    bouyer 
     64        1.1    bouyer #include <sys/param.h>
     65        1.1    bouyer #include <sys/systm.h>
     66        1.1    bouyer #include <sys/kernel.h>
     67        1.1    bouyer #include <sys/device.h>
     68        1.1    bouyer #include <sys/socket.h>
     69       1.17   thorpej #include <sys/errno.h>
     70        1.7   thorpej 
     71       1.51        ad #include <sys/bus.h>
     72        1.7   thorpej 
     73        1.1    bouyer #include <net/if.h>
     74        1.1    bouyer #include <net/if_media.h>
     75        1.1    bouyer 
     76        1.7   thorpej #include <net/if_ether.h>
     77        1.1    bouyer 
     78        1.7   thorpej #include <dev/mii/mii.h>
     79        1.7   thorpej #include <dev/mii/miivar.h>
     80        1.7   thorpej #include <dev/mii/miidevs.h>
     81        1.7   thorpej 
     82        1.7   thorpej #include <dev/mii/tlphyreg.h>
     83        1.7   thorpej #include <dev/mii/tlphyvar.h>
     84        1.7   thorpej 
     85        1.7   thorpej /* ThunderLAN PHY can only be on a ThunderLAN */
     86        1.7   thorpej #include <dev/pci/if_tlvar.h>
     87        1.7   thorpej 
     88        1.7   thorpej struct tlphy_softc {
     89        1.7   thorpej 	struct mii_softc sc_mii;		/* generic PHY */
     90        1.7   thorpej 	int sc_tlphycap;
     91       1.17   thorpej 	int sc_need_acomp;
     92        1.7   thorpej };
     93        1.1    bouyer 
     94       1.56   xtraeme static int	tlphymatch(device_t, cfdata_t, void *);
     95       1.56   xtraeme static void	tlphyattach(device_t, device_t, void *);
     96        1.1    bouyer 
     97       1.56   xtraeme CFATTACH_DECL_NEW(tlphy, sizeof(struct tlphy_softc),
     98       1.37   thorpej     tlphymatch, tlphyattach, mii_phy_detach, mii_phy_activate);
     99        1.1    bouyer 
    100       1.41   thorpej static int	tlphy_service(struct mii_softc *, struct mii_data *, int);
    101       1.41   thorpej static int	tlphy_auto(struct tlphy_softc *, int);
    102       1.41   thorpej static void	tlphy_acomp(struct tlphy_softc *);
    103       1.41   thorpej static void	tlphy_status(struct mii_softc *);
    104        1.7   thorpej 
    105       1.41   thorpej static const struct mii_phy_funcs tlphy_funcs = {
    106       1.26   thorpej 	tlphy_service, tlphy_status, mii_phy_reset,
    107       1.26   thorpej };
    108       1.26   thorpej 
    109       1.41   thorpej static const struct mii_phydesc tlphys[] = {
    110       1.30   thorpej 	{ MII_OUI_TI,		MII_MODEL_TI_TLAN10T,
    111       1.30   thorpej 	  MII_STR_TI_TLAN10T },
    112       1.30   thorpej 
    113       1.30   thorpej 	{ 0,			0,
    114       1.30   thorpej 	  NULL },
    115       1.30   thorpej };
    116       1.30   thorpej 
    117       1.41   thorpej static int
    118       1.56   xtraeme tlphymatch(device_t parent, cfdata_t match, void *aux)
    119        1.1    bouyer {
    120       1.42     perry 	struct mii_attach_args *ma = aux;
    121        1.1    bouyer 
    122       1.30   thorpej 	if (mii_phy_match(ma, tlphys) != NULL)
    123       1.15   thorpej 		return (10);
    124        1.7   thorpej 
    125        1.4   thorpej 	return (0);
    126        1.1    bouyer }
    127        1.1    bouyer 
    128       1.41   thorpej static void
    129       1.56   xtraeme tlphyattach(device_t parent, device_t self, void *aux)
    130        1.1    bouyer {
    131       1.57   tsutsui 	struct tlphy_softc *tsc = device_private(self);
    132       1.57   tsutsui 	struct mii_softc *sc = &tsc->sc_mii;
    133       1.46   thorpej 	struct tl_softc *tlsc = device_private(device_parent(self));
    134        1.7   thorpej 	struct mii_attach_args *ma = aux;
    135        1.7   thorpej 	struct mii_data *mii = ma->mii_data;
    136       1.30   thorpej 	const struct mii_phydesc *mpd;
    137        1.7   thorpej 	const char *sep = "";
    138        1.7   thorpej 
    139       1.30   thorpej 	mpd = mii_phy_match(ma, tlphys);
    140       1.39   thorpej 	aprint_naive(": Media interface\n");
    141       1.39   thorpej 	aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
    142        1.7   thorpej 
    143       1.57   tsutsui 	sc->mii_dev = self;
    144       1.57   tsutsui 	sc->mii_inst = mii->mii_instance;
    145       1.57   tsutsui 	sc->mii_phy = ma->mii_phyno;
    146       1.57   tsutsui 	sc->mii_funcs = &tlphy_funcs;
    147       1.57   tsutsui 	sc->mii_pdata = mii;
    148       1.57   tsutsui 	sc->mii_flags = ma->mii_flags;
    149       1.57   tsutsui 	sc->mii_anegticks = MII_ANEGTICKS;
    150        1.7   thorpej 
    151       1.57   tsutsui 	PHY_RESET(sc);
    152        1.7   thorpej 
    153        1.7   thorpej 	/*
    154        1.7   thorpej 	 * Note that if we're on a device that also supports 100baseTX,
    155        1.7   thorpej 	 * we are not going to want to use the built-in 10baseT port,
    156        1.7   thorpej 	 * since there will be another PHY on the MII wired up to the
    157        1.7   thorpej 	 * UTP connector.  The parent indicates this to us by specifying
    158        1.7   thorpej 	 * the TLPHY_MEDIA_NO_10_T bit.
    159        1.7   thorpej 	 */
    160       1.57   tsutsui 	tsc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia;
    161       1.57   tsutsui 	if ((tsc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0)
    162       1.57   tsutsui 		sc->mii_capabilities =
    163       1.57   tsutsui 		    PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
    164        1.7   thorpej 	else
    165       1.57   tsutsui 		sc->mii_capabilities = 0;
    166        1.7   thorpej 
    167       1.19   thorpej 
    168        1.7   thorpej #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
    169       1.39   thorpej #define	PRINT(str)	aprint_normal("%s%s", sep, str); sep = ", "
    170        1.7   thorpej 
    171       1.56   xtraeme 	aprint_normal_dev(self, "");
    172       1.57   tsutsui 	if (tsc->sc_tlphycap) {
    173       1.57   tsutsui 		if (tsc->sc_tlphycap & TLPHY_MEDIA_10_2) {
    174        1.7   thorpej 			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0,
    175       1.57   tsutsui 			    sc->mii_inst), 0);
    176       1.19   thorpej 			PRINT("10base2");
    177       1.57   tsutsui 		} else if (tsc->sc_tlphycap & TLPHY_MEDIA_10_5) {
    178        1.7   thorpej 			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0,
    179       1.57   tsutsui 			    sc->mii_inst), 0);
    180       1.19   thorpej 			PRINT("10base5");
    181        1.7   thorpej 		}
    182        1.7   thorpej 	}
    183       1.57   tsutsui 	if (sc->mii_capabilities & BMSR_MEDIAMASK) {
    184       1.39   thorpej 		aprint_normal("%s", sep);
    185       1.57   tsutsui 		mii_phy_add_media(sc);
    186       1.57   tsutsui 	} else if ((tsc->sc_tlphycap &
    187       1.19   thorpej 		    (TLPHY_MEDIA_10_2 | TLPHY_MEDIA_10_5)) == 0)
    188       1.39   thorpej 		aprint_error("no media present");
    189       1.58    dyoung 	else if (!pmf_device_register(self, NULL, mii_phy_resume)) {
    190       1.58    dyoung 		aprint_normal("\n");
    191       1.58    dyoung 		aprint_error_dev(self, "couldn't establish power handler");
    192       1.58    dyoung 	}
    193       1.39   thorpej 	aprint_normal("\n");
    194        1.7   thorpej #undef ADD
    195        1.7   thorpej #undef PRINT
    196        1.7   thorpej }
    197        1.7   thorpej 
    198       1.41   thorpej static int
    199       1.57   tsutsui tlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
    200        1.7   thorpej {
    201       1.57   tsutsui 	struct tlphy_softc *tsc = (struct tlphy_softc *)sc;
    202       1.11   thorpej 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
    203        1.7   thorpej 	int reg;
    204       1.21   thorpej 
    205       1.57   tsutsui 	if ((sc->mii_flags & MIIF_DOINGAUTO) == 0 && tsc->sc_need_acomp)
    206       1.57   tsutsui 		tlphy_acomp(tsc);
    207       1.17   thorpej 
    208        1.7   thorpej 	switch (cmd) {
    209        1.7   thorpej 	case MII_POLLSTAT:
    210        1.7   thorpej 		/*
    211        1.7   thorpej 		 * If we're not polling our PHY instance, just return.
    212        1.7   thorpej 		 */
    213       1.57   tsutsui 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    214        1.7   thorpej 			return (0);
    215        1.1    bouyer 		break;
    216        1.7   thorpej 
    217        1.7   thorpej 	case MII_MEDIACHG:
    218        1.7   thorpej 		/*
    219        1.7   thorpej 		 * If the media indicates a different PHY instance,
    220        1.7   thorpej 		 * isolate ourselves.
    221        1.7   thorpej 		 */
    222       1.57   tsutsui 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
    223       1.57   tsutsui 			reg = PHY_READ(sc, MII_BMCR);
    224       1.57   tsutsui 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
    225        1.7   thorpej 			return (0);
    226        1.7   thorpej 		}
    227       1.42     perry 
    228        1.7   thorpej 		/*
    229        1.7   thorpej 		 * If the interface is not up, don't do anything.
    230        1.7   thorpej 		 */
    231        1.7   thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    232        1.7   thorpej 			break;
    233        1.7   thorpej 
    234       1.11   thorpej 		switch (IFM_SUBTYPE(ife->ifm_media)) {
    235        1.7   thorpej 		case IFM_AUTO:
    236        1.7   thorpej 			/*
    237        1.7   thorpej 			 * The ThunderLAN PHY doesn't self-configure after
    238        1.7   thorpej 			 * an autonegotiation cycle, so there's no such
    239        1.7   thorpej 			 * thing as "already in auto mode".
    240        1.7   thorpej 			 */
    241       1.57   tsutsui 			(void) tlphy_auto(tsc, 1);
    242        1.7   thorpej 			break;
    243        1.7   thorpej 		case IFM_10_2:
    244        1.7   thorpej 		case IFM_10_5:
    245       1.57   tsutsui 			PHY_WRITE(sc, MII_BMCR, 0);
    246       1.57   tsutsui 			PHY_WRITE(sc, MII_TLPHY_CTRL, CTRL_AUISEL);
    247        1.7   thorpej 			delay(100000);
    248        1.7   thorpej 			break;
    249        1.7   thorpej 		default:
    250       1.57   tsutsui 			PHY_WRITE(sc, MII_TLPHY_CTRL, 0);
    251        1.7   thorpej 			delay(100000);
    252       1.57   tsutsui 			mii_phy_setmedia(sc);
    253        1.7   thorpej 		}
    254        1.1    bouyer 		break;
    255        1.7   thorpej 
    256        1.7   thorpej 	case MII_TICK:
    257        1.7   thorpej 		/*
    258        1.7   thorpej 		 * If we're not currently selected, just return.
    259        1.7   thorpej 		 */
    260       1.57   tsutsui 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    261        1.7   thorpej 			return (0);
    262        1.7   thorpej 
    263        1.7   thorpej 		/*
    264        1.7   thorpej 		 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
    265        1.7   thorpej 		 */
    266        1.7   thorpej 
    267       1.57   tsutsui 		if (mii_phy_tick(sc) == EJUSTRETURN)
    268       1.17   thorpej 			return (0);
    269        1.3  christos 		break;
    270       1.20   thorpej 
    271       1.20   thorpej 	case MII_DOWN:
    272       1.57   tsutsui 		mii_phy_down(sc);
    273       1.20   thorpej 		return (0);
    274        1.1    bouyer 	}
    275        1.1    bouyer 
    276        1.7   thorpej 	/* Update the media status. */
    277       1.57   tsutsui 	mii_phy_status(sc);
    278        1.7   thorpej 
    279        1.7   thorpej 	/* Callback if something changed. */
    280       1.57   tsutsui 	mii_phy_update(sc, cmd);
    281        1.7   thorpej 	return (0);
    282        1.1    bouyer }
    283        1.1    bouyer 
    284       1.41   thorpej static void
    285       1.57   tsutsui tlphy_status(struct mii_softc *sc)
    286        1.1    bouyer {
    287       1.57   tsutsui 	struct tlphy_softc *tsc = (struct tlphy_softc *)sc;
    288       1.57   tsutsui 	struct mii_data *mii = sc->mii_pdata;
    289        1.7   thorpej 	int bmsr, bmcr, tlctrl;
    290        1.4   thorpej 
    291        1.7   thorpej 	mii->mii_media_status = IFM_AVALID;
    292        1.7   thorpej 	mii->mii_media_active = IFM_ETHER;
    293        1.1    bouyer 
    294       1.57   tsutsui 	bmcr = PHY_READ(sc, MII_BMCR);
    295        1.7   thorpej 	if (bmcr & BMCR_ISO) {
    296        1.7   thorpej 		mii->mii_media_active |= IFM_NONE;
    297       1.42     perry 		mii->mii_media_status = 0;
    298        1.7   thorpej 		return;
    299        1.1    bouyer 	}
    300        1.1    bouyer 
    301       1.57   tsutsui 	tlctrl = PHY_READ(sc, MII_TLPHY_CTRL);
    302        1.7   thorpej 	if (tlctrl & CTRL_AUISEL) {
    303       1.57   tsutsui 		if (tsc->sc_tlphycap & TLPHY_MEDIA_10_2)
    304       1.10    bouyer 			mii->mii_media_active |= IFM_10_2;
    305       1.57   tsutsui 		else if (tsc->sc_tlphycap & TLPHY_MEDIA_10_5)
    306       1.10    bouyer 			mii->mii_media_active |= IFM_10_5;
    307        1.1    bouyer 		else
    308       1.10    bouyer 			printf("%s: AUI selected with no matching media !\n",
    309       1.57   tsutsui 			    device_xname(sc->mii_dev));
    310       1.31    bouyer 		mii->mii_media_status |= IFM_ACTIVE;
    311        1.7   thorpej 		return;
    312        1.1    bouyer 	}
    313       1.10    bouyer 
    314       1.57   tsutsui 	bmsr = PHY_READ(sc, MII_BMSR) |
    315       1.57   tsutsui 	    PHY_READ(sc, MII_BMSR);
    316       1.42     perry 	if (bmsr & BMSR_LINK)
    317       1.10    bouyer 		mii->mii_media_status |= IFM_ACTIVE;
    318        1.7   thorpej 
    319        1.7   thorpej 	if (bmcr & BMCR_LOOP)
    320        1.7   thorpej 		mii->mii_media_active |= IFM_LOOP;
    321        1.7   thorpej 
    322        1.7   thorpej 	/*
    323        1.7   thorpej 	 * Grr, braindead ThunderLAN PHY doesn't have any way to
    324        1.7   thorpej 	 * tell which media is actually active.  (Note it also
    325        1.7   thorpej 	 * doesn't self-configure after autonegotiation.)  We
    326        1.7   thorpej 	 * just have to report what's in the BMCR.
    327        1.7   thorpej 	 */
    328        1.7   thorpej 	if (bmcr & BMCR_FDX)
    329        1.7   thorpej 		mii->mii_media_active |= IFM_FDX;
    330  1.59.22.2       tls 	else
    331  1.59.22.2       tls 		mii->mii_media_active |= IFM_HDX;
    332        1.7   thorpej 	mii->mii_media_active |= IFM_10_T;
    333        1.1    bouyer }
    334        1.1    bouyer 
    335       1.41   thorpej static int
    336       1.57   tsutsui tlphy_auto(struct tlphy_softc *tsc, int waitfor)
    337       1.17   thorpej {
    338       1.57   tsutsui 	struct mii_softc *sc = &tsc->sc_mii;
    339       1.17   thorpej 	int error;
    340       1.17   thorpej 
    341       1.57   tsutsui 	switch ((error = mii_phy_auto(sc, waitfor))) {
    342       1.17   thorpej 	case EIO:
    343       1.17   thorpej 		/*
    344       1.17   thorpej 		 * Just assume we're not in full-duplex mode.
    345       1.17   thorpej 		 * XXX Check link and try AUI/BNC?
    346       1.17   thorpej 		 */
    347       1.57   tsutsui 		PHY_WRITE(sc, MII_BMCR, 0);
    348       1.17   thorpej 		break;
    349       1.17   thorpej 
    350       1.17   thorpej 	case EJUSTRETURN:
    351       1.17   thorpej 		/* Flag that we need to program when it completes. */
    352       1.57   tsutsui 		tsc->sc_need_acomp = 1;
    353       1.17   thorpej 		break;
    354       1.17   thorpej 
    355       1.17   thorpej 	default:
    356       1.57   tsutsui 		tlphy_acomp(tsc);
    357       1.17   thorpej 	}
    358       1.17   thorpej 
    359       1.17   thorpej 	return (error);
    360       1.17   thorpej }
    361       1.17   thorpej 
    362       1.41   thorpej static void
    363       1.57   tsutsui tlphy_acomp(struct tlphy_softc *tsc)
    364        1.1    bouyer {
    365       1.57   tsutsui 	struct mii_softc *sc = &tsc->sc_mii;
    366       1.13   thorpej 	int aner, anlpar;
    367        1.1    bouyer 
    368       1.57   tsutsui 	tsc->sc_need_acomp = 0;
    369        1.7   thorpej 
    370        1.7   thorpej 	/*
    371        1.7   thorpej 	 * Grr, braindead ThunderLAN PHY doesn't self-configure
    372        1.7   thorpej 	 * after autonegotiation.  We have to do it ourselves
    373        1.7   thorpej 	 * based on the link partner status.
    374        1.7   thorpej 	 */
    375        1.7   thorpej 
    376       1.57   tsutsui 	aner = PHY_READ(sc, MII_ANER);
    377        1.7   thorpej 	if (aner & ANER_LPAN) {
    378       1.57   tsutsui 		anlpar = PHY_READ(sc, MII_ANLPAR) &
    379       1.57   tsutsui 		    PHY_READ(sc, MII_ANAR);
    380        1.7   thorpej 		if (anlpar & ANAR_10_FD) {
    381       1.57   tsutsui 			PHY_WRITE(sc, MII_BMCR, BMCR_FDX);
    382        1.7   thorpej 			return;
    383        1.7   thorpej 		}
    384        1.7   thorpej 	}
    385       1.57   tsutsui 	PHY_WRITE(sc, MII_BMCR, 0);
    386        1.1    bouyer }
    387