f752c7d328
BMSR are wired to 0, yet the PHY supports 10baseT. So, to get around this, we test the ANAR 10baseT bits after a PHY reset. These bits are set according to input pin 180. If we see the 10baseT ANAR bits set, we fake them in the BMSR so that we can actually autonegotiate 10baseT.
322 lines
9.4 KiB
C
322 lines
9.4 KiB
C
/* $NetBSD: gphyter.c,v 1.2 2001/05/31 18:47:22 thorpej Exp $ */
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/*-
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* Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1997 Manuel Bouyer. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Manuel Bouyer.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* driver for National Semiconductor's DP83891 and DP83861 `Gig PHYTER'
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* ethernet 10/100/1000 PHYs. The DP83891 is an older, non-firmware-
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* driven version of the DP83861.
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*
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* Data Sheet available from www.national.com
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/socket.h>
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#include <sys/errno.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/mii/miidevs.h>
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#include <dev/mii/gphyterreg.h>
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int gphytermatch __P((struct device *, struct cfdata *, void *));
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void gphyterattach __P((struct device *, struct device *, void *));
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struct cfattach gphyter_ca = {
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sizeof(struct mii_softc), gphytermatch, gphyterattach,
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mii_phy_detach, mii_phy_activate
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};
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int gphyter_service __P((struct mii_softc *, struct mii_data *, int));
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void gphyter_status __P((struct mii_softc *));
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const struct mii_phy_funcs gphyter_funcs = {
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gphyter_service, gphyter_status, mii_phy_reset,
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};
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int
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gphytermatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct mii_attach_args *ma = aux;
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if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxNATSEMI &&
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MII_MODEL(ma->mii_id2) == MII_MODEL_xxNATSEMI_DP83861)
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return (10);
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if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxNATSEMI &&
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MII_MODEL(ma->mii_id2) == MII_MODEL_xxNATSEMI_DP83891)
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return (10);
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return (0);
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}
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void
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gphyterattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct mii_softc *sc = (struct mii_softc *)self;
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struct mii_attach_args *ma = aux;
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struct mii_data *mii = ma->mii_data;
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const char *model;
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int anar, strap;
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switch (MII_MODEL(ma->mii_id2)) {
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case MII_MODEL_xxNATSEMI_DP83861:
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model = MII_STR_xxNATSEMI_DP83861;
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break;
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case MII_MODEL_xxNATSEMI_DP83891:
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model = MII_STR_xxNATSEMI_DP83891;
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break;
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default:
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printf("\n");
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panic("gphyterattach: impossible");
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}
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printf(": %s, rev. %d\n", model, MII_REV(ma->mii_id2));
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sc->mii_inst = mii->mii_instance;
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sc->mii_phy = ma->mii_phyno;
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sc->mii_funcs = &gphyter_funcs;
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sc->mii_pdata = mii;
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sc->mii_flags = mii->mii_flags;
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sc->mii_anegticks = 5;
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PHY_RESET(sc);
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sc->mii_capabilities =
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PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
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if (sc->mii_capabilities & BMSR_EXTSTAT)
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sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
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/*
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* The Gig PHYTER seems to have the 10baseT BMSR bits
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* hard-wired to 0, even though the device supports
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* 10baseT. What we do instead is read the post-reset
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* ANAR, who's 10baseT-related bits are set by strapping
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* pin 180, and fake the BMSR bits.
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*/
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anar = PHY_READ(sc, MII_ANAR);
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if (anar & ANAR_10)
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sc->mii_capabilities |= (BMSR_10THDX & ma->mii_capmask);
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if (anar & ANAR_10_FD)
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sc->mii_capabilities |= (BMSR_10TFDX & ma->mii_capmask);
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printf("%s: ", sc->mii_dev.dv_xname);
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if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
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(sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
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printf("no media present");
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else
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mii_phy_add_media(sc);
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printf("\n");
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strap = PHY_READ(sc, MII_GPHYTER_STRAP);
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printf("%s: strapped to %s mode", sc->mii_dev.dv_xname,
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(strap & STRAP_MS_VAL) ? "master" : "slave");
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if (strap & STRAP_NC_MODE)
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printf(", pre-C5 BCM5400 compat enabled");
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printf("\n");
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}
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int
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gphyter_service(sc, mii, cmd)
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struct mii_softc *sc;
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struct mii_data *mii;
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int cmd;
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{
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int reg;
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switch (cmd) {
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case MII_POLLSTAT:
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/*
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* If we're not polling our PHY instance, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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break;
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case MII_MEDIACHG:
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/*
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* If the media indicates a different PHY instance,
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* isolate ourselves.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
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reg = PHY_READ(sc, MII_BMCR);
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PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
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return (0);
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}
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/*
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* If the interface is not up, don't do anything.
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*/
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
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break;
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mii_phy_setmedia(sc);
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break;
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case MII_TICK:
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/*
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* If we're not currently selected, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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if (mii_phy_tick(sc) == EJUSTRETURN)
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return (0);
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break;
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case MII_DOWN:
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mii_phy_down(sc);
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return (0);
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}
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/* Update the media status. */
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mii_phy_status(sc);
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/* Callback if something changed. */
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mii_phy_update(sc, cmd);
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return (0);
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}
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void
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gphyter_status(sc)
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struct mii_softc *sc;
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{
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struct mii_data *mii = sc->mii_pdata;
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int bmsr, bmcr, physup, gtsr;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
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physup = PHY_READ(sc, MII_GPHYTER_PHY_SUP);
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if (physup & PHY_SUP_LINK)
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mii->mii_media_status |= IFM_ACTIVE;
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bmcr = PHY_READ(sc, MII_BMCR);
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if (bmcr & BMCR_ISO) {
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mii->mii_media_active |= IFM_NONE;
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mii->mii_media_status = 0;
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return;
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}
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if (bmcr & BMCR_LOOP)
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mii->mii_media_active |= IFM_LOOP;
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if (bmcr & BMCR_AUTOEN) {
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/*
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* The media status bits are only valid of autonegotiation
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* has completed (or it's disabled).
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*/
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if ((bmsr & BMSR_ACOMP) == 0) {
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/* Erg, still trying, I guess... */
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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switch (physup & (PHY_SUP_SPEED1|PHY_SUP_SPEED0)) {
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case PHY_SUP_SPEED1:
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mii->mii_media_active |= IFM_1000_TX;
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gtsr = PHY_READ(sc, MII_100T2SR);
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if (gtsr & GTSR_MS_RES)
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mii->mii_media_active |= IFM_ETH_MASTER;
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break;
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case PHY_SUP_SPEED0:
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mii->mii_media_active |= IFM_100_TX;
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break;
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case 0:
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mii->mii_media_active |= IFM_10_T;
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break;
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default:
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mii->mii_media_active |= IFM_NONE;
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mii->mii_media_status = 0;
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}
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if (physup & PHY_SUP_DUPLEX)
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mii->mii_media_active |= IFM_FDX;
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} else
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mii->mii_media_active = ife->ifm_media;
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}
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