404 lines
11 KiB
C
404 lines
11 KiB
C
/* $NetBSD: igphy.c,v 1.1 2003/10/28 00:15:40 fvdl Exp $ */
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/*
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* The Intel copyright applies to the analog register setup, and the
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* (currently disabled) SmartSpeed workaround code.
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*/
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/*******************************************************************************
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Copyright (c) 2001-2003, Intel Corporation
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All rights reserved.
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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 are met:
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1. Redistributions of source code must retain the above copyright notice,
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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. Neither the name of the Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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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) 1998, 1999, 2000, 2003 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, and by Frank van der Linden.
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: igphy.c,v 1.1 2003/10/28 00:15:40 fvdl Exp $");
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#include "opt_mii.h"
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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/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/igphyreg.h>
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static void igphy_reset(struct mii_softc *);
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static void igphy_load_dspcode(struct mii_softc *);
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#if 0
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static void igphy_smartspeed_workaround(struct mii_softc *sc);
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#endif
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int igphymatch(struct device *, struct cfdata *, void *);
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void igphyattach(struct device *, struct device *, void *);
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CFATTACH_DECL(igphy, sizeof(struct mii_softc),
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igphymatch, igphyattach, mii_phy_detach, mii_phy_activate);
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int igphy_service(struct mii_softc *, struct mii_data *, int);
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void igphy_status(struct mii_softc *);
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const struct mii_phy_funcs igphy_funcs = {
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igphy_service, igphy_status, igphy_reset,
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};
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const struct mii_phydesc igphys[] = {
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{ MII_OUI_yyINTEL, MII_MODEL_yyINTEL_IGP01E1000,
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MII_STR_yyINTEL_IGP01E1000 },
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{0, 0,
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NULL },
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};
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int
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igphymatch(struct device *parent, struct cfdata *match, void *aux)
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{
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struct mii_attach_args *ma = aux;
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if (mii_phy_match(ma, igphys) != NULL)
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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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igphyattach(struct device *parent, struct device *self, 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 struct mii_phydesc *mpd;
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mpd = mii_phy_match(ma, igphys);
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aprint_naive(": Media interface\n");
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aprint_normal(": %s, rev. %d\n", mpd->mpd_name, 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 = &igphy_funcs;
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sc->mii_pdata = mii;
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sc->mii_flags = ma->mii_flags;
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sc->mii_anegticks = 10;
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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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aprint_normal("%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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aprint_error("no media present");
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else
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mii_phy_add_media(sc);
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aprint_normal("\n");
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}
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static void
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igphy_load_dspcode(struct mii_softc *sc)
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{
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static const struct {
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int reg;
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uint16_t val;
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} dspcode[] = {
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{ 0x1f95, 0x0001 },
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{ 0x1f71, 0xbd21 },
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{ 0x1f79, 0x0018 },
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{ 0x1f30, 0x1600 },
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{ 0x1f31, 0x0014 },
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{ 0x1f32, 0x161c },
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{ 0x1f94, 0x0003 },
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{ 0x1f96, 0x003f },
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{ 0x2010, 0x0008 },
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{ 0, 0 },
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};
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int i;
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delay(10);
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PHY_WRITE(sc, MII_IGPHY_PAGE_SELECT, 0x0000);
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PHY_WRITE(sc, 0x0000, 0x0140);
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delay(5);
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for (i = 0; dspcode[i].reg != 0; i++)
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IGPHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
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PHY_WRITE(sc, MII_IGPHY_PAGE_SELECT,0x0000);
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PHY_WRITE(sc, 0x0000, 0x3300);
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}
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static void
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igphy_reset(struct mii_softc *sc)
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{
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uint16_t fused, fine, coarse;
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mii_phy_reset(sc);
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igphy_load_dspcode(sc);
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fused = IGPHY_READ(sc, MII_IGPHY_ANALOG_SPARE_FUSE_STATUS);
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if ((fused & ANALOG_SPARE_FUSE_ENABLED) == 0) {
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fused = IGPHY_READ(sc, MII_IGPHY_ANALOG_FUSE_STATUS);
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fine = fused & ANALOG_FUSE_FINE_MASK;
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coarse = fused & ANALOG_FUSE_COARSE_MASK;
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if (coarse > ANALOG_FUSE_COARSE_THRESH) {
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coarse -= ANALOG_FUSE_COARSE_10;
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fine -= ANALOG_FUSE_FINE_1;
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} else if (coarse == ANALOG_FUSE_COARSE_THRESH)
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fine -= ANALOG_FUSE_FINE_10;
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fused = (fused & ANALOG_FUSE_POLY_MASK) |
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(fine & ANALOG_FUSE_FINE_MASK) |
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(coarse & ANALOG_FUSE_COARSE_MASK);
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IGPHY_WRITE(sc, MII_IGPHY_ANALOG_FUSE_CONTROL, fused);
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IGPHY_WRITE(sc, MII_IGPHY_ANALOG_FUSE_BYPASS,
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ANALOG_FUSE_ENABLE_SW_CONTROL);
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}
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PHY_WRITE(sc, MII_IGPHY_PAGE_SELECT,0x0000);
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}
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int
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igphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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uint16_t 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 0
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igphy_smartspeed_workaround(sc);
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#endif
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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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igphy_status(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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uint16_t bmcr, pssr, gtsr, bmsr;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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pssr = PHY_READ(sc, MII_IGPHY_PORT_STATUS);
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if (pssr & PSSR_LINK_UP)
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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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bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
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/*
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* XXX can't check if the info is valid, no
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* 'negotiation done' bit?
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*/
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if (bmcr & BMCR_AUTOEN) {
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if ((bmsr & BMSR_ACOMP) == 0) {
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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switch (pssr & PSSR_SPEED_MASK) {
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case PSSR_SPEED_1000MBPS:
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mii->mii_media_active |= IFM_1000_T;
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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 PSSR_SPEED_100MBPS:
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mii->mii_media_active |= IFM_100_TX;
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break;
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case PSSR_SPEED_10MBPS:
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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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return;
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}
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if (pssr & PSSR_FULL_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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#if 0
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static void
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igphy_smartspeed_workaround(struct mii_softc *sc)
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{
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uint16_t reg, gtsr, gctr;
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reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
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if (!(reg & BMSR_LINK)) {
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switch (sc->mii_ticks) {
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case 0:
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gtsr = PHY_READ(sc, MII_100T2SR);
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if (!(gtsr & GTSR_MAN_MS_FLT))
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break;
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gtsr = PHY_READ(sc, MII_100T2SR);
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if (gtsr & GTSR_MAN_MS_FLT) {
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gtcr = PHY_READ(sc, MII_100T2CR);
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if (gtcr & GTCR_MAN_MS) {
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gtcr &= ~GTCR_MAN_MS;
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PHY_WRITE(sc, MII_100T2CR,
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gtcr);
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}
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mii_phy_auto(sc, 0);
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sc->mii_ticks++;
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}
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break;
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case IGPHY_TICK_DOWNSHIFT:
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gtcr = PHY_READ(sc, MII_100T2CR);
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gtcr |= GTCR_MAN_MS;
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PHY_WRITE(sc, MII_100T2CR, gtcr);
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mii_phy_auto(sc, 0);
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break;
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default:
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break;
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}
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}
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}
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#endif
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