445 lines
11 KiB
C
445 lines
11 KiB
C
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/*-
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* Copyright (c) 2006, Pyun YongHyeon <yongari@FreeBSD.org>
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* 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 unmodified, this list of conditions, and the following
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Driver for the IC Plus IP1000A 10/100/1000 PHY.
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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/module.h>
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#include <sys/socket.h>
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#include <sys/bus.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 "miidevs.h"
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#include <dev/mii/ip1000phyreg.h>
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#include "miibus_if.h"
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#include <machine/bus.h>
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#include <dev/stge/if_stgereg.h>
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static int ip1000phy_probe(device_t);
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static int ip1000phy_attach(device_t);
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static device_method_t ip1000phy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, ip1000phy_probe),
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DEVMETHOD(device_attach, ip1000phy_attach),
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DEVMETHOD(device_detach, mii_phy_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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{ 0, 0 }
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};
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static devclass_t ip1000phy_devclass;
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static driver_t ip1000phy_driver = {
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"ip1000phy",
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ip1000phy_methods,
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sizeof (struct mii_softc)
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};
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DRIVER_MODULE(ip1000phy, miibus, ip1000phy_driver, ip1000phy_devclass, 0, 0);
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static int ip1000phy_service(struct mii_softc *, struct mii_data *, int);
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static void ip1000phy_status(struct mii_softc *);
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static void ip1000phy_reset(struct mii_softc *);
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static int ip1000phy_mii_phy_auto(struct mii_softc *);
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static const struct mii_phydesc ip1000phys[] = {
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MII_PHY_DESC(ICPLUS, IP1000A),
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MII_PHY_END
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};
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static int
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ip1000phy_probe(device_t dev)
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{
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struct mii_attach_args *ma;
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const struct mii_phydesc *mpd;
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ma = device_get_ivars(dev);
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mpd = mii_phy_match(ma, ip1000phys);
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if (mpd != NULL) {
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device_set_desc(dev, mpd->mpd_name);
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return (BUS_PROBE_DEFAULT);
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}
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return (ENXIO);
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}
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static int
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ip1000phy_attach(device_t dev)
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{
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struct mii_softc *sc;
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struct mii_attach_args *ma;
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struct mii_data *mii;
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sc = device_get_softc(dev);
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ma = device_get_ivars(dev);
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sc->mii_dev = device_get_parent(dev);
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mii = device_get_softc(sc->mii_dev);
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LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
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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_service = ip1000phy_service;
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sc->mii_pdata = mii;
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sc->mii_anegticks = MII_ANEGTICKS_GIGE;
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sc->mii_flags |= MIIF_NOISOLATE;
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mii->mii_instance++;
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device_printf(dev, " ");
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#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
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BMCR_ISO);
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst),
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IP1000PHY_BMCR_10);
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printf("10baseT, ");
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst),
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IP1000PHY_BMCR_10 | IP1000PHY_BMCR_FDX);
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printf("10baseT-FDX, ");
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst),
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IP1000PHY_BMCR_100);
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printf("100baseTX, ");
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst),
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IP1000PHY_BMCR_100 | IP1000PHY_BMCR_FDX);
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printf("100baseTX-FDX, ");
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/* 1000baseT half-duplex, really supported? */
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0, sc->mii_inst),
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IP1000PHY_BMCR_1000);
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printf("1000baseTX, ");
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX, sc->mii_inst),
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IP1000PHY_BMCR_1000 | IP1000PHY_BMCR_FDX);
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printf("1000baseTX-FDX, ");
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
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printf("auto\n");
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#undef ADD
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ip1000phy_reset(sc);
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MIIBUS_MEDIAINIT(sc->mii_dev);
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return(0);
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}
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static int
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ip1000phy_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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uint32_t gig, reg, speed;
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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, IP1000PHY_MII_BMCR);
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PHY_WRITE(sc, IP1000PHY_MII_BMCR,
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reg | IP1000PHY_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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}
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ip1000phy_reset(sc);
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switch (IFM_SUBTYPE(ife->ifm_media)) {
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case IFM_AUTO:
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(void)ip1000phy_mii_phy_auto(sc);
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goto done;
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break;
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case IFM_1000_T:
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/*
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* XXX
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* Manual 1000baseT setting doesn't seem to work.
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*/
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speed = IP1000PHY_BMCR_1000;
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break;
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case IFM_100_TX:
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speed = IP1000PHY_BMCR_100;
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break;
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case IFM_10_T:
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speed = IP1000PHY_BMCR_10;
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break;
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default:
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return (EINVAL);
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}
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if (((ife->ifm_media & IFM_GMASK) & IFM_FDX) != 0) {
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speed |= IP1000PHY_BMCR_FDX;
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gig = IP1000PHY_1000CR_1000T_FDX;
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} else
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gig = IP1000PHY_1000CR_1000T;
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PHY_WRITE(sc, IP1000PHY_MII_1000CR, 0);
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PHY_WRITE(sc, IP1000PHY_MII_BMCR, speed);
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if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
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break;
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PHY_WRITE(sc, IP1000PHY_MII_1000CR, gig);
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PHY_WRITE(sc, IP1000PHY_MII_BMCR, speed);
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/*
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* When settning the link manually, one side must
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* be the master and the other the slave. However
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* ifmedia doesn't give us a good way to specify
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* this, so we fake it by using one of the LINK
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* flags. If LINK0 is set, we program the PHY to
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* be a master, otherwise it's a slave.
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*/
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if ((mii->mii_ifp->if_flags & IFF_LINK0))
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PHY_WRITE(sc, IP1000PHY_MII_1000CR, gig |
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IP1000PHY_1000CR_MASTER |
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IP1000PHY_1000CR_MMASTER |
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IP1000PHY_1000CR_MANUAL);
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else
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PHY_WRITE(sc, IP1000PHY_MII_1000CR, gig |
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IP1000PHY_1000CR_MASTER |
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IP1000PHY_1000CR_MANUAL);
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done:
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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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/*
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* Is the interface even up?
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*/
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
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return (0);
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/*
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* Only used for autonegotiation.
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*/
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if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
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sc->mii_ticks = 0;
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break;
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}
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/*
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* check for link.
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*/
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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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sc->mii_ticks = 0;
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break;
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}
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/* Announce link loss right after it happens */
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if (sc->mii_ticks++ == 0)
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break;
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/*
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* Only retry autonegotiation every mii_anegticks seconds.
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*/
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if (sc->mii_ticks <= sc->mii_anegticks)
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return (0);
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sc->mii_ticks = 0;
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ip1000phy_mii_phy_auto(sc);
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break;
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}
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/* Update the media status. */
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ip1000phy_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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static void
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ip1000phy_status(struct mii_softc *sc)
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{
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struct mii_data *mii = sc->mii_pdata;
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uint32_t bmsr, bmcr, stat;
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uint32_t ar, lpar;
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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, IP1000PHY_MII_BMSR) |
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PHY_READ(sc, IP1000PHY_MII_BMSR);
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if ((bmsr & IP1000PHY_BMSR_LINK) != 0)
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mii->mii_media_status |= IFM_ACTIVE;
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bmcr = PHY_READ(sc, IP1000PHY_MII_BMCR);
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if ((bmcr & IP1000PHY_BMCR_LOOP) != 0)
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mii->mii_media_active |= IFM_LOOP;
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if ((bmcr & IP1000PHY_BMCR_AUTOEN) != 0) {
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if ((bmsr & IP1000PHY_BMSR_ANEGCOMP) == 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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}
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stat = PHY_READ(sc, STGE_PhyCtrl);
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switch (PC_LinkSpeed(stat)) {
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case PC_LinkSpeed_Down:
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mii->mii_media_active |= IFM_NONE;
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return;
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case PC_LinkSpeed_10:
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mii->mii_media_active |= IFM_10_T;
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break;
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case PC_LinkSpeed_100:
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mii->mii_media_active |= IFM_100_TX;
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break;
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case PC_LinkSpeed_1000:
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mii->mii_media_active |= IFM_1000_T;
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break;
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}
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if ((stat & PC_PhyDuplexStatus) != 0)
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mii->mii_media_active |= IFM_FDX;
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else
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mii->mii_media_active |= IFM_HDX;
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ar = PHY_READ(sc, IP1000PHY_MII_ANAR);
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lpar = PHY_READ(sc, IP1000PHY_MII_ANLPAR);
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/*
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* FLAG0 : Rx flow-control
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* FLAG1 : Tx flow-control
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||
|
|
*/
|
||
|
|
if ((ar & IP1000PHY_ANAR_PAUSE) && (lpar & IP1000PHY_ANLPAR_PAUSE))
|
||
|
|
mii->mii_media_active |= IFM_FLAG0 | IFM_FLAG1;
|
||
|
|
else if (!(ar & IP1000PHY_ANAR_PAUSE) && (ar & IP1000PHY_ANAR_APAUSE) &&
|
||
|
|
(lpar & IP1000PHY_ANLPAR_PAUSE) && (lpar & IP1000PHY_ANLPAR_APAUSE))
|
||
|
|
mii->mii_media_active |= IFM_FLAG1;
|
||
|
|
else if ((ar & IP1000PHY_ANAR_PAUSE) && (ar & IP1000PHY_ANAR_APAUSE) &&
|
||
|
|
!(lpar & IP1000PHY_ANLPAR_PAUSE) &&
|
||
|
|
(lpar & IP1000PHY_ANLPAR_APAUSE)) {
|
||
|
|
mii->mii_media_active |= IFM_FLAG0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* FLAG2 : local PHY resolved to MASTER
|
||
|
|
*/
|
||
|
|
if ((mii->mii_media_active & IFM_1000_T) != 0) {
|
||
|
|
stat = PHY_READ(sc, IP1000PHY_MII_1000SR);
|
||
|
|
if ((stat & IP1000PHY_1000SR_MASTER) != 0)
|
||
|
|
mii->mii_media_active |= IFM_FLAG2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
ip1000phy_mii_phy_auto(struct mii_softc *mii)
|
||
|
|
{
|
||
|
|
uint32_t reg;
|
||
|
|
|
||
|
|
PHY_WRITE(mii, IP1000PHY_MII_ANAR,
|
||
|
|
IP1000PHY_ANAR_10T | IP1000PHY_ANAR_10T_FDX |
|
||
|
|
IP1000PHY_ANAR_100TX | IP1000PHY_ANAR_100TX_FDX |
|
||
|
|
IP1000PHY_ANAR_PAUSE | IP1000PHY_ANAR_APAUSE);
|
||
|
|
reg = IP1000PHY_1000CR_1000T | IP1000PHY_1000CR_1000T_FDX;
|
||
|
|
reg |= IP1000PHY_1000CR_MASTER;
|
||
|
|
PHY_WRITE(mii, IP1000PHY_MII_1000CR, reg);
|
||
|
|
PHY_WRITE(mii, IP1000PHY_MII_BMCR, (IP1000PHY_BMCR_FDX |
|
||
|
|
IP1000PHY_BMCR_AUTOEN | IP1000PHY_BMCR_STARTNEG));
|
||
|
|
|
||
|
|
return (EJUSTRETURN);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
ip1000phy_load_dspcode(struct mii_softc *sc)
|
||
|
|
{
|
||
|
|
|
||
|
|
PHY_WRITE(sc, 31, 0x0001);
|
||
|
|
PHY_WRITE(sc, 27, 0x01e0);
|
||
|
|
PHY_WRITE(sc, 31, 0x0002);
|
||
|
|
PHY_WRITE(sc, 27, 0xeb8e);
|
||
|
|
PHY_WRITE(sc, 31, 0x0000);
|
||
|
|
PHY_WRITE(sc, 30, 0x005e);
|
||
|
|
PHY_WRITE(sc, 9, 0x0700);
|
||
|
|
|
||
|
|
DELAY(50);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
ip1000phy_reset(struct mii_softc *sc)
|
||
|
|
{
|
||
|
|
struct stge_softc *stge_sc;
|
||
|
|
struct mii_data *mii;
|
||
|
|
uint32_t reg;
|
||
|
|
|
||
|
|
mii_phy_reset(sc);
|
||
|
|
|
||
|
|
/* clear autoneg/full-duplex as we don't want it after reset */
|
||
|
|
reg = PHY_READ(sc, IP1000PHY_MII_BMCR);
|
||
|
|
reg &= ~(IP1000PHY_BMCR_AUTOEN | IP1000PHY_BMCR_FDX);
|
||
|
|
PHY_WRITE(sc, MII_BMCR, reg);
|
||
|
|
|
||
|
|
mii = sc->mii_pdata;
|
||
|
|
/*
|
||
|
|
* XXX There should be more general way to pass PHY specific
|
||
|
|
* data via mii interface.
|
||
|
|
*/
|
||
|
|
if (strcmp(mii->mii_ifp->if_dname, "stge") == 0) {
|
||
|
|
stge_sc = mii->mii_ifp->if_softc;
|
||
|
|
if (stge_sc->sc_rev >= 0x40 && stge_sc->sc_rev <= 0x4e)
|
||
|
|
ip1000phy_load_dspcode(sc);
|
||
|
|
}
|
||
|
|
}
|