NetBSD/sys/dev/mii/brgphy.c

578 lines
15 KiB
C

/* $NetBSD: brgphy.c,v 1.22 2004/10/28 07:26:17 cube Exp $ */
/*-
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Manuel Bouyer.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
/*
* driver for the Broadcom BCM5400 Gig-E PHY.
*
* Programming information for this PHY was gleaned from FreeBSD
* (they were apparently able to get a datasheet from Broadcom).
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: brgphy.c,v 1.22 2004/10/28 07:26:17 cube Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mii/miidevs.h>
#include <dev/mii/brgphyreg.h>
static int brgphymatch(struct device *, struct cfdata *, void *);
static void brgphyattach(struct device *, struct device *, void *);
CFATTACH_DECL(brgphy, sizeof(struct mii_softc),
brgphymatch, brgphyattach, mii_phy_detach, mii_phy_activate);
static int brgphy_service(struct mii_softc *, struct mii_data *, int);
static void brgphy_status(struct mii_softc *);
static void brgphy_5401_reset(struct mii_softc *);
static void brgphy_5411_reset(struct mii_softc *);
static void brgphy_5703_reset(struct mii_softc *);
static void brgphy_5704_reset(struct mii_softc *);
static void brgphy_5705_reset(struct mii_softc *);
static void brgphy_5750_reset(struct mii_softc *);
static const struct mii_phy_funcs brgphy_funcs = {
brgphy_service, brgphy_status, mii_phy_reset,
};
static const struct mii_phy_funcs brgphy_5401_funcs = {
brgphy_service, brgphy_status, brgphy_5401_reset,
};
static const struct mii_phy_funcs brgphy_5411_funcs = {
brgphy_service, brgphy_status, brgphy_5411_reset,
};
static const struct mii_phy_funcs brgphy_5703_funcs = {
brgphy_service, brgphy_status, brgphy_5703_reset,
};
static const struct mii_phy_funcs brgphy_5704_funcs = {
brgphy_service, brgphy_status, brgphy_5704_reset,
};
static const struct mii_phy_funcs brgphy_5705_funcs = {
brgphy_service, brgphy_status, brgphy_5705_reset,
};
const struct mii_phy_funcs brgphy_5750_funcs = {
brgphy_service, brgphy_status, brgphy_5750_reset,
};
static const struct mii_phydesc brgphys[] = {
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400,
MII_STR_BROADCOM_BCM5400 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401,
MII_STR_BROADCOM_BCM5401 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411,
MII_STR_BROADCOM_BCM5411 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421,
MII_STR_BROADCOM_BCM5421 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701,
MII_STR_BROADCOM_BCM5701 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5703,
MII_STR_BROADCOM_BCM5703 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5704,
MII_STR_BROADCOM_BCM5704 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5705,
MII_STR_BROADCOM_BCM5705 },
{ MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5750,
MII_STR_BROADCOM_BCM5750 },
{ 0, 0,
NULL },
};
static void bcm5401_load_dspcode(struct mii_softc *);
static void bcm5411_load_dspcode(struct mii_softc *);
static void bcm5703_load_dspcode(struct mii_softc *);
static void bcm5704_load_dspcode(struct mii_softc *);
static void bcm5750_load_dspcode(struct mii_softc *);
static int
brgphymatch(struct device *parent, struct cfdata *match, void *aux)
{
struct mii_attach_args *ma = aux;
if (mii_phy_match(ma, brgphys) != NULL)
return (10);
return (0);
}
static void
brgphyattach(struct device *parent, struct device *self, void *aux)
{
struct mii_softc *sc = (struct mii_softc *)self;
struct mii_attach_args *ma = aux;
struct mii_data *mii = ma->mii_data;
const struct mii_phydesc *mpd;
mpd = mii_phy_match(ma, brgphys);
aprint_naive(": Media interface\n");
aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
sc->mii_inst = mii->mii_instance;
sc->mii_phy = ma->mii_phyno;
sc->mii_pdata = mii;
sc->mii_flags = ma->mii_flags;
sc->mii_anegticks = 5;
switch (MII_MODEL(ma->mii_id2)) {
case MII_MODEL_BROADCOM_BCM5400:
sc->mii_funcs = &brgphy_5401_funcs;
aprint_normal("%s: using BCM5401 DSP patch\n",
sc->mii_dev.dv_xname);
break;
case MII_MODEL_BROADCOM_BCM5401:
if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) {
sc->mii_funcs = &brgphy_5401_funcs;
aprint_normal("%s: using BCM5401 DSP patch\n",
sc->mii_dev.dv_xname);
} else
sc->mii_funcs = &brgphy_funcs;
break;
case MII_MODEL_BROADCOM_BCM5411:
sc->mii_funcs = &brgphy_5411_funcs;
aprint_normal("%s: using BCM5411 DSP patch\n",
sc->mii_dev.dv_xname);
break;
#ifdef notyet /* unverified, untested */
case MII_MODEL_BROADCOM_BCM5703:
sc->mii_funcs = &brgphy_5703_funcs;
aprint_normal("%s: using BCM5703 DSP patch\n",
sc->mii_dev.dv_xname);
break;
#endif
case MII_MODEL_BROADCOM_BCM5704:
sc->mii_funcs = &brgphy_5704_funcs;
aprint_normal("%s: using BCM5704 DSP patch\n",
sc->mii_dev.dv_xname);
break;
case MII_MODEL_BROADCOM_BCM5705:
sc->mii_funcs = &brgphy_5705_funcs;
break;
case MII_MODEL_BROADCOM_BCM5750:
sc->mii_funcs = &brgphy_5750_funcs;
break;
default:
sc->mii_funcs = &brgphy_funcs;
break;
}
PHY_RESET(sc);
sc->mii_capabilities =
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
if (sc->mii_capabilities & BMSR_EXTSTAT)
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
aprint_normal("%s: ", sc->mii_dev.dv_xname);
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
(sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
aprint_error("no media present");
else
mii_phy_add_media(sc);
aprint_normal("\n");
}
static int
brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int reg;
switch (cmd) {
case MII_POLLSTAT:
/*
* If we're not polling our PHY instance, just return.
*/
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
return (0);
break;
case MII_MEDIACHG:
/*
* If the media indicates a different PHY instance,
* isolate ourselves.
*/
if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
reg = PHY_READ(sc, MII_BMCR);
PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
return (0);
}
/*
* If the interface is not up, don't do anything.
*/
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
break;
if (sc->mii_funcs != &brgphy_5705_funcs)
mii_phy_reset(sc); /* XXX hardware bug work-around */
mii_phy_setmedia(sc);
break;
case MII_TICK:
/*
* If we're not currently selected, just return.
*/
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
return (0);
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
case MII_DOWN:
mii_phy_down(sc);
return (0);
}
/* Update the media status. */
mii_phy_status(sc);
/*
* Callback if something changed. Note that we need to poke
* the DSP on the Broadcom PHYs if the media changes.
*/
if (sc->mii_media_active != mii->mii_media_active ||
sc->mii_media_status != mii->mii_media_status ||
cmd == MII_MEDIACHG) {
mii_phy_update(sc, cmd);
if (sc->mii_funcs == &brgphy_5401_funcs)
bcm5401_load_dspcode(sc);
else if (sc->mii_funcs == &brgphy_5411_funcs)
bcm5411_load_dspcode(sc);
}
return (0);
}
static void
brgphy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int bmcr, auxsts, gtsr;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS);
if (auxsts & BRGPHY_AUXSTS_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 of autonegotiation
* has completed (or it's disabled).
*/
if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
return;
}
switch (auxsts & BRGPHY_AUXSTS_AN_RES) {
case BRGPHY_RES_1000FD:
mii->mii_media_active |= IFM_1000_T|IFM_FDX;
gtsr = PHY_READ(sc, MII_100T2SR);
if (gtsr & GTSR_MS_RES)
mii->mii_media_active |= IFM_ETH_MASTER;
break;
case BRGPHY_RES_1000HD:
mii->mii_media_active |= IFM_1000_T;
gtsr = PHY_READ(sc, MII_100T2SR);
if (gtsr & GTSR_MS_RES)
mii->mii_media_active |= IFM_ETH_MASTER;
break;
case BRGPHY_RES_100FD:
mii->mii_media_active |= IFM_100_TX|IFM_FDX;
break;
case BRGPHY_RES_100T4:
mii->mii_media_active |= IFM_100_T4;
break;
case BRGPHY_RES_100HD:
mii->mii_media_active |= IFM_100_TX;
break;
case BRGPHY_RES_10FD:
mii->mii_media_active |= IFM_10_T|IFM_FDX;
break;
case BRGPHY_RES_10HD:
mii->mii_media_active |= IFM_10_T;
break;
default:
mii->mii_media_active |= IFM_NONE;
mii->mii_media_status = 0;
}
if (mii->mii_media_active & IFM_FDX)
mii->mii_media_active |= mii_phy_flowstatus(sc);
} else
mii->mii_media_active = ife->ifm_media;
}
static void
brgphy_5401_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
bcm5401_load_dspcode(sc);
}
static void
brgphy_5411_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
bcm5411_load_dspcode(sc);
}
static void
brgphy_5703_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
bcm5703_load_dspcode(sc);
}
static void
brgphy_5704_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
bcm5704_load_dspcode(sc);
}
/*
* Hardware bug workaround. Do nothing since after
* reset the 5705 PHY would get stuck in 10/100 MII mode.
*/
static void
brgphy_5705_reset(struct mii_softc *sc)
{
}
static void
brgphy_5750_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
bcm5750_load_dspcode(sc);
}
/* Turn off tap power management on 5401. */
static void
bcm5401_load_dspcode(struct mii_softc *sc)
{
static const struct {
int reg;
uint16_t val;
} dspcode[] = {
{ BRGPHY_MII_AUXCTL, 0x0c20 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x0012 },
{ BRGPHY_MII_DSP_RW_PORT, 0x1804 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x0013 },
{ BRGPHY_MII_DSP_RW_PORT, 0x1204 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x8006 },
{ BRGPHY_MII_DSP_RW_PORT, 0x0132 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x8006 },
{ BRGPHY_MII_DSP_RW_PORT, 0x0232 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x201f },
{ BRGPHY_MII_DSP_RW_PORT, 0x0a20 },
{ 0, 0 },
};
int i;
for (i = 0; dspcode[i].reg != 0; i++)
PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
delay(40);
}
static void
bcm5411_load_dspcode(struct mii_softc *sc)
{
static const struct {
int reg;
uint16_t val;
} dspcode[] = {
{ 0x1c, 0x8c23 },
{ 0x1c, 0x8ca3 },
{ 0x1c, 0x8c23 },
{ 0, 0 },
};
int i;
for (i = 0; dspcode[i].reg != 0; i++)
PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
}
static void
bcm5703_load_dspcode(struct mii_softc *sc)
{
static const struct {
int reg;
uint16_t val;
} dspcode[] = {
{ BRGPHY_MII_AUXCTL, 0x0c00 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x201f },
{ BRGPHY_MII_DSP_RW_PORT, 0x2aaa },
{ 0, 0 },
};
int i;
for (i = 0; dspcode[i].reg != 0; i++)
PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
}
static void
bcm5704_load_dspcode(struct mii_softc *sc)
{
static const struct {
int reg;
uint16_t val;
} dspcode[] = {
{ 0x1c, 0x8d68 },
{ 0x1c, 0x8d68 },
{ 0, 0 },
};
int i;
for (i = 0; dspcode[i].reg != 0; i++)
PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
}
static void
bcm5750_load_dspcode(struct mii_softc *sc)
{
static const struct {
int reg;
uint16_t val;
} dspcode[] = {
{ BRGPHY_MII_AUXCTL, 0x0c00 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x000a },
{ BRGPHY_MII_DSP_RW_PORT, 0x310b },
{ BRGPHY_MII_DSP_ADDR_REG, 0x201f },
{ BRGPHY_MII_DSP_RW_PORT, 0x9506 },
{ BRGPHY_MII_DSP_ADDR_REG, 0x401f },
{ BRGPHY_MII_DSP_RW_PORT, 0x14e2 },
{ BRGPHY_MII_AUXCTL, 0x0400 },
{ 0, 0 },
};
int i;
for (i = 0; dspcode[i].reg != 0; i++)
PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
}