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/*-
* SPDX-License-Identifier: BSD-2-Clause-NetBSD
*
* Copyright (c) 2019 Rubicon Communications, LLC (Netgate)
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center, and by Frank van der Linden.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/* Driver for the Marvell 88e151x gigabit ethernet PHY. */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mii/mv88e151xreg.h>
#include "miidevs.h"
#include "miibus_if.h"
static int mv88e151x_probe(device_t);
static int mv88e151x_attach(device_t);
static device_method_t mv88e151x_methods[] = {
/* device interface */
DEVMETHOD(device_probe, mv88e151x_probe),
DEVMETHOD(device_attach, mv88e151x_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static driver_t mv88e151x_driver = {
"mv88e151x",
mv88e151x_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(mv88e151x, miibus, mv88e151x_driver, 0, 0);
static int mv88e151x_service(struct mii_softc *, struct mii_data *, int);
static void mv88e151x_status(struct mii_softc *);
static const struct mii_phydesc mv88e151xphys[] = {
MII_PHY_DESC(xxMARVELL, E1512),
MII_PHY_END
};
static const struct mii_phy_funcs mv88e151x_funcs = {
mv88e151x_service,
mv88e151x_status,
mii_phy_reset
};
static int
mv88e151x_probe(device_t dev)
{
return (mii_phy_dev_probe(dev, mv88e151xphys, BUS_PROBE_DEFAULT));
}
static int
mv88e151x_attach(device_t dev)
{
const struct mii_attach_args *ma;
struct mii_softc *sc;
uint32_t cop_cap, cop_extcap;
sc = device_get_softc(dev);
ma = device_get_ivars(dev);
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &mv88e151x_funcs, 0);
PHY_RESET(sc);
sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
cop_cap = sc->mii_capabilities;
if (sc->mii_capabilities & BMSR_EXTSTAT) {
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
cop_extcap = sc->mii_extcapabilities;
}
device_printf(dev, " ");
if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512)
sc->mii_capabilities &= ~BMSR_ANEG;
mii_phy_add_media(sc);
if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512) {
/* Switch the fiber PHY and add the supported media. */
PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_FIBER);
PHY_RESET(sc);
sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
if (sc->mii_capabilities & BMSR_EXTSTAT)
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
sc->mii_flags |= MIIF_NOISOLATE;
printf(", ");
mii_phy_add_media(sc);
/* Switch back to copper PHY. */
PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
sc->mii_flags &= ~MIIF_NOISOLATE;
sc->mii_capabilities = cop_cap;
sc->mii_extcapabilities = cop_extcap;
}
printf("\n");
MIIBUS_MEDIAINIT(sc->mii_dev);
mii_phy_setmedia(sc);
/* Enable the fiber PHY auto negotiation. */
if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512) {
PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_FIBER);
PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN |
BMCR_STARTNEG | BMCR_FDX | BMCR_S1000);
PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
}
return (0);
}
static int
mv88e151x_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
mii_phy_setmedia(sc);
break;
case MII_TICK:
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
PHY_STATUS(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
static void
mv88e151x_fiber_status(struct mii_softc *phy)
{
struct mii_data *mii = phy->mii_pdata;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int bmsr, bmcr, anlpar; //, gtcr, gtsr;
uint32_t reg;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
/* Switch to the fiber PHY. */
PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_FIBER);
reg = PHY_READ(phy, MV88E151X_FIBER_STATUS);
bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR);
if (reg & MV88E151X_STATUS_LINK)
mii->mii_media_status |= IFM_ACTIVE;
bmcr = PHY_READ(phy, MII_BMCR);
if (bmcr & BMCR_ISO) {
mii->mii_media_active |= IFM_NONE;
mii->mii_media_status = 0;
PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
return;
}
if (bmcr & BMCR_LOOP)
mii->mii_media_active |= IFM_LOOP;
if (bmcr & BMCR_AUTOEN) {
/*
* NWay autonegotiation takes the highest-order common
* bit of the ANAR and ANLPAR (i.e. best media advertised
* both by us and our link partner).
*/
if ((bmsr & BMSR_ACOMP) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
return;
}
anlpar = PHY_READ(phy, MII_ANAR) & PHY_READ(phy, MII_ANLPAR);
if (anlpar & ANLPAR_X_FD)
mii->mii_media_active |= IFM_1000_SX | IFM_FDX;
else if (anlpar & ANLPAR_X_HD)
mii->mii_media_active |= IFM_1000_SX | IFM_HDX;
else if (reg & MV88E151X_STATUS_LINK &&
reg & MV88E151X_STATUS_SYNC &&
(reg & MV88E151X_STATUS_ENERGY) == 0) {
if ((reg & MV88E151X_STATUS_SPEED_MASK) ==
MV88E151X_STATUS_SPEED_1000)
mii->mii_media_active |= IFM_1000_SX;
else if ((reg & MV88E151X_STATUS_SPEED_MASK) ==
MV88E151X_STATUS_SPEED_100)
mii->mii_media_active |= IFM_100_FX;
else
mii->mii_media_active |= IFM_NONE;
if ((reg & MV88E151X_STATUS_SPEED_MASK) != 0 &&
(reg & MV88E151X_STATUS_FDX))
mii->mii_media_active |= IFM_FDX;
} else
mii->mii_media_active |= IFM_NONE;
if ((mii->mii_media_active & IFM_NONE) == 0)
phy->mii_flags |= MIIF_IS_1000X;
if ((mii->mii_media_active & IFM_FDX) != 0)
mii->mii_media_active |= mii_phy_flowstatus(phy);
} else
mii->mii_media_active = ife->ifm_media;
if ((mii->mii_media_status & IFM_ACTIVE) == 0)
phy->mii_flags &= ~MIIF_IS_1000X;
/* Switch back to copper PHY. */
PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER);
}
static void
mv88e151x_status(struct mii_softc *phy)
{
struct mii_data *mii = phy->mii_pdata;
mv88e151x_fiber_status(phy);
if (mii->mii_media_status & IFM_ACTIVE)
return;
ukphy_status(phy);
}
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