255 lines
7.1 KiB
C
255 lines
7.1 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1997 Manuel Bouyer. All rights reserved.
|
|
*
|
|
* 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 AUTHOR ``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 AUTHOR 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.
|
|
*
|
|
* from: NetBSD: bmtphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
/*
|
|
* Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs. This also
|
|
* drives the PHY on the 3Com 3c905C. The 3c905C's PHY is described in
|
|
* the 3c905C data sheet.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/socket.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 "miidevs.h"
|
|
|
|
#include <dev/mii/bmtphyreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
static int bmtphy_probe(device_t);
|
|
static int bmtphy_attach(device_t);
|
|
|
|
static device_method_t bmtphy_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, bmtphy_probe),
|
|
DEVMETHOD(device_attach, bmtphy_attach),
|
|
DEVMETHOD(device_detach, mii_phy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t bmtphy_driver = {
|
|
"bmtphy",
|
|
bmtphy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(bmtphy, miibus, bmtphy_driver, 0, 0);
|
|
|
|
static int bmtphy_service(struct mii_softc *, struct mii_data *, int);
|
|
static void bmtphy_status(struct mii_softc *);
|
|
static void bmtphy_reset(struct mii_softc *);
|
|
|
|
static const struct mii_phydesc bmtphys_dp[] = {
|
|
MII_PHY_DESC(xxBROADCOM, BCM4401),
|
|
MII_PHY_DESC(xxBROADCOM, BCM5201),
|
|
MII_PHY_DESC(xxBROADCOM, BCM5214),
|
|
MII_PHY_DESC(xxBROADCOM, BCM5221),
|
|
MII_PHY_DESC(xxBROADCOM, BCM5222),
|
|
MII_PHY_END
|
|
};
|
|
|
|
static const struct mii_phydesc bmtphys_lp[] = {
|
|
MII_PHY_DESC(xxBROADCOM, 3C905B),
|
|
MII_PHY_DESC(xxBROADCOM, 3C905C),
|
|
MII_PHY_END
|
|
};
|
|
|
|
static const struct mii_phy_funcs bmtphy_funcs = {
|
|
bmtphy_service,
|
|
bmtphy_status,
|
|
bmtphy_reset
|
|
};
|
|
|
|
static int
|
|
bmtphy_probe(device_t dev)
|
|
{
|
|
int rval;
|
|
|
|
/* Let exphy(4) take precedence for these. */
|
|
rval = mii_phy_dev_probe(dev, bmtphys_lp, BUS_PROBE_LOW_PRIORITY);
|
|
if (rval <= 0)
|
|
return (rval);
|
|
|
|
return (mii_phy_dev_probe(dev, bmtphys_dp, BUS_PROBE_DEFAULT));
|
|
}
|
|
|
|
static int
|
|
bmtphy_attach(device_t dev)
|
|
{
|
|
|
|
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &bmtphy_funcs, 1);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
bmtphy_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
|
|
bmtphy_status(struct mii_softc *sc)
|
|
{
|
|
struct mii_data *mii;
|
|
struct ifmedia_entry *ife;
|
|
int bmsr, bmcr, aux_csr;
|
|
|
|
mii = sc->mii_pdata;
|
|
ife = mii->mii_media.ifm_cur;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
|
|
|
|
if (bmsr & BMSR_LINK)
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
|
|
bmcr = PHY_READ(sc, MII_BMCR);
|
|
if (bmcr & BMCR_ISO) {
|
|
mii->mii_media_active |= IFM_NONE;
|
|
mii->mii_media_status = 0;
|
|
return;
|
|
}
|
|
|
|
if (bmcr & BMCR_LOOP)
|
|
mii->mii_media_active |= IFM_LOOP;
|
|
|
|
if (bmcr & BMCR_AUTOEN) {
|
|
/*
|
|
* The media status bits are only valid if autonegotiation
|
|
* has completed (or it's disabled).
|
|
*/
|
|
if ((bmsr & BMSR_ACOMP) == 0) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR);
|
|
if (aux_csr & AUX_CSR_SPEED)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else
|
|
mii->mii_media_active |= IFM_10_T;
|
|
if (aux_csr & AUX_CSR_FDX)
|
|
mii->mii_media_active |=
|
|
IFM_FDX | mii_phy_flowstatus(sc);
|
|
else
|
|
mii->mii_media_active |= IFM_HDX;
|
|
} else
|
|
mii->mii_media_active = ife->ifm_media;
|
|
}
|
|
|
|
static void
|
|
bmtphy_reset(struct mii_softc *sc)
|
|
{
|
|
u_int16_t data;
|
|
|
|
mii_phy_reset(sc);
|
|
|
|
if (sc->mii_mpd_model == MII_MODEL_xxBROADCOM_BCM5221) {
|
|
/* Enable shadow register mode. */
|
|
data = PHY_READ(sc, 0x1f);
|
|
PHY_WRITE(sc, 0x1f, data | 0x0080);
|
|
|
|
/* Enable APD (Auto PowerDetect). */
|
|
data = PHY_READ(sc, MII_BMTPHY_AUX2);
|
|
PHY_WRITE(sc, MII_BMTPHY_AUX2, data | 0x0020);
|
|
|
|
/* Enable clocks across APD for Auto-MDIX functionality. */
|
|
data = PHY_READ(sc, MII_BMTPHY_INTR);
|
|
PHY_WRITE(sc, MII_BMTPHY_INTR, data | 0x0004);
|
|
|
|
/* Disable shadow register mode. */
|
|
data = PHY_READ(sc, 0x1f);
|
|
PHY_WRITE(sc, 0x1f, data & ~0x0080);
|
|
}
|
|
}
|