265 lines
7.6 KiB
C
265 lines
7.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Rubicon Communications, LLC (Netgate)
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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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*
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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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/* Driver for the Marvell 88e151x gigabit ethernet PHY. */
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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/socket.h>
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#include <sys/errno.h>
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#include <sys/module.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 <dev/mii/mv88e151xreg.h>
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#include "miidevs.h"
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#include "miibus_if.h"
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static int mv88e151x_probe(device_t);
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static int mv88e151x_attach(device_t);
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static device_method_t mv88e151x_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, mv88e151x_probe),
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DEVMETHOD(device_attach, mv88e151x_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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DEVMETHOD_END
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};
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static driver_t mv88e151x_driver = {
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"mv88e151x",
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mv88e151x_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(mv88e151x, miibus, mv88e151x_driver, 0, 0);
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static int mv88e151x_service(struct mii_softc *, struct mii_data *, int);
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static void mv88e151x_status(struct mii_softc *);
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static const struct mii_phydesc mv88e151xphys[] = {
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MII_PHY_DESC(xxMARVELL, E1512),
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MII_PHY_END
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};
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static const struct mii_phy_funcs mv88e151x_funcs = {
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mv88e151x_service,
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mv88e151x_status,
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mii_phy_reset
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};
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static int
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mv88e151x_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, mv88e151xphys, BUS_PROBE_DEFAULT));
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}
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static int
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mv88e151x_attach(device_t dev)
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{
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const struct mii_attach_args *ma;
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struct mii_softc *sc;
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uint32_t cop_cap, cop_extcap;
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sc = device_get_softc(dev);
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ma = device_get_ivars(dev);
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &mv88e151x_funcs, 0);
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PHY_RESET(sc);
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sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
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cop_cap = sc->mii_capabilities;
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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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cop_extcap = sc->mii_extcapabilities;
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}
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device_printf(dev, " ");
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if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512)
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sc->mii_capabilities &= ~BMSR_ANEG;
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mii_phy_add_media(sc);
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if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512) {
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/* Switch the fiber PHY and add the supported media. */
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PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_FIBER);
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PHY_RESET(sc);
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sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->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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sc->mii_flags |= MIIF_NOISOLATE;
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printf(", ");
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mii_phy_add_media(sc);
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/* Switch back to copper PHY. */
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PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
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sc->mii_flags &= ~MIIF_NOISOLATE;
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sc->mii_capabilities = cop_cap;
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sc->mii_extcapabilities = cop_extcap;
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}
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printf("\n");
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MIIBUS_MEDIAINIT(sc->mii_dev);
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mii_phy_setmedia(sc);
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/* Enable the fiber PHY auto negotiation. */
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if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512) {
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PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_FIBER);
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PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN |
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BMCR_STARTNEG | BMCR_FDX | BMCR_S1000);
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PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
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}
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return (0);
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}
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static int
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mv88e151x_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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switch (cmd) {
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case MII_POLLSTAT:
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break;
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case MII_MEDIACHG:
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mii_phy_setmedia(sc);
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break;
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case MII_TICK:
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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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}
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/* Update the media status. */
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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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static void
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mv88e151x_fiber_status(struct mii_softc *phy)
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{
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struct mii_data *mii = phy->mii_pdata;
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int bmsr, bmcr, anlpar; //, gtcr, gtsr;
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uint32_t reg;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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/* Switch to the fiber PHY. */
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PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_FIBER);
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reg = PHY_READ(phy, MV88E151X_FIBER_STATUS);
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bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR);
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if (reg & MV88E151X_STATUS_LINK)
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mii->mii_media_status |= IFM_ACTIVE;
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bmcr = PHY_READ(phy, 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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PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
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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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* NWay autonegotiation takes the highest-order common
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* bit of the ANAR and ANLPAR (i.e. best media advertised
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* both by us and our link partner).
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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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PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
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return;
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}
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anlpar = PHY_READ(phy, MII_ANAR) & PHY_READ(phy, MII_ANLPAR);
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if (anlpar & ANLPAR_X_FD)
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mii->mii_media_active |= IFM_1000_SX | IFM_FDX;
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else if (anlpar & ANLPAR_X_HD)
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mii->mii_media_active |= IFM_1000_SX | IFM_HDX;
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else if (reg & MV88E151X_STATUS_LINK &&
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reg & MV88E151X_STATUS_SYNC &&
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(reg & MV88E151X_STATUS_ENERGY) == 0) {
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if ((reg & MV88E151X_STATUS_SPEED_MASK) ==
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MV88E151X_STATUS_SPEED_1000)
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mii->mii_media_active |= IFM_1000_SX;
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else if ((reg & MV88E151X_STATUS_SPEED_MASK) ==
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MV88E151X_STATUS_SPEED_100)
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mii->mii_media_active |= IFM_100_FX;
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else
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mii->mii_media_active |= IFM_NONE;
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if ((reg & MV88E151X_STATUS_SPEED_MASK) != 0 &&
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(reg & MV88E151X_STATUS_FDX))
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mii->mii_media_active |= IFM_FDX;
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} else
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mii->mii_media_active |= IFM_NONE;
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if ((mii->mii_media_active & IFM_NONE) == 0)
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phy->mii_flags |= MIIF_IS_1000X;
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if ((mii->mii_media_active & IFM_FDX) != 0)
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mii->mii_media_active |= mii_phy_flowstatus(phy);
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} else
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mii->mii_media_active = ife->ifm_media;
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if ((mii->mii_media_status & IFM_ACTIVE) == 0)
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phy->mii_flags &= ~MIIF_IS_1000X;
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/* Switch back to copper PHY. */
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PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
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}
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static void
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mv88e151x_status(struct mii_softc *phy)
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{
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struct mii_data *mii = phy->mii_pdata;
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mv88e151x_fiber_status(phy);
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if (mii->mii_media_status & IFM_ACTIVE)
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return;
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ukphy_status(phy);
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}
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