391 lines
9.9 KiB
C
391 lines
9.9 KiB
C
/* $FreeBSD$ */
|
|
/*
|
|
* Principal Author: Parag Patel
|
|
* Copyright (c) 2001
|
|
* 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 unmodified, 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 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 AUTHOR 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.
|
|
*
|
|
* Additonal Copyright (c) 2001 by Traakan Software under same licence.
|
|
* Secondary Author: Matthew Jacob
|
|
*/
|
|
|
|
/*
|
|
* driver for the Marvell 88E1000 series external 1000/100/10-BT PHY.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <machine/clock.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/e1000phyreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
static int e1000phy_probe(device_t);
|
|
static int e1000phy_attach(device_t);
|
|
|
|
static device_method_t e1000phy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, e1000phy_probe),
|
|
DEVMETHOD(device_attach, e1000phy_attach),
|
|
DEVMETHOD(device_detach, mii_phy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t e1000phy_devclass;
|
|
static driver_t e1000phy_driver = {
|
|
"e1000phy", e1000phy_methods, sizeof (struct mii_softc)
|
|
};
|
|
DRIVER_MODULE(e1000phy, miibus, e1000phy_driver, e1000phy_devclass, 0, 0);
|
|
|
|
static int e1000phy_service(struct mii_softc *, struct mii_data *, int);
|
|
static void e1000phy_status(struct mii_softc *);
|
|
static void e1000phy_reset(struct mii_softc *);
|
|
static int e1000phy_mii_phy_auto(struct mii_softc *);
|
|
|
|
static int e1000phy_debug = 0;
|
|
|
|
static int
|
|
e1000phy_probe(device_t dev)
|
|
{
|
|
struct mii_attach_args *ma;
|
|
u_int32_t id;
|
|
|
|
ma = device_get_ivars(dev);
|
|
id = ((ma->mii_id1 << 16) | ma->mii_id2) & E1000_ID_MASK;
|
|
|
|
if (id != E1000_ID_88E1000 && id != E1000_ID_88E1000S) {
|
|
return ENXIO;
|
|
}
|
|
|
|
device_set_desc(dev, MII_STR_MARVELL_E1000);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
e1000phy_attach(device_t dev)
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_attach_args *ma;
|
|
struct mii_data *mii;
|
|
|
|
getenv_int("e1000phy_debug", &e1000phy_debug);
|
|
|
|
sc = device_get_softc(dev);
|
|
ma = device_get_ivars(dev);
|
|
sc->mii_dev = device_get_parent(dev);
|
|
mii = device_get_softc(sc->mii_dev);
|
|
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_service = e1000phy_service;
|
|
sc->mii_pdata = mii;
|
|
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
mii->mii_instance++;
|
|
e1000phy_reset(sc);
|
|
|
|
device_printf(dev, " ");
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
/*
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
|
|
E1000_CR_ISOLATE);
|
|
*/
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst),
|
|
E1000_CR_SPEED_10);
|
|
printf("10baseT, ");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst),
|
|
E1000_CR_SPEED_10 | E1000_CR_FULL_DUPLEX);
|
|
printf("10baseT-FDX, ");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst),
|
|
E1000_CR_SPEED_100);
|
|
printf("100baseTX, ");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst),
|
|
E1000_CR_SPEED_100 | E1000_CR_FULL_DUPLEX);
|
|
printf("100baseTX-FDX, ");
|
|
/*
|
|
* 1000BT-simplex not supported; driver must ignore this entry,
|
|
* but it must be present in order to manually set full-duplex.
|
|
*/
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0, sc->mii_inst),
|
|
E1000_CR_SPEED_1000);
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX, sc->mii_inst),
|
|
E1000_CR_SPEED_1000 | E1000_CR_FULL_DUPLEX);
|
|
printf("1000baseTX-FDX, ");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
|
|
printf("auto\n");
|
|
#undef ADD
|
|
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
return(0);
|
|
}
|
|
|
|
static void
|
|
e1000phy_reset(struct mii_softc *sc)
|
|
{
|
|
u_int32_t reg;
|
|
int i;
|
|
|
|
/* initialize custom E1000 registers to magic values */
|
|
reg = PHY_READ(sc, E1000_SCR);
|
|
reg &= ~E1000_SCR_AUTO_X_MODE;
|
|
PHY_WRITE(sc, E1000_SCR, reg);
|
|
|
|
/* normal PHY reset */
|
|
/*mii_phy_reset(sc);*/
|
|
reg = PHY_READ(sc, E1000_CR);
|
|
reg |= E1000_CR_RESET;
|
|
PHY_WRITE(sc, E1000_CR, reg);
|
|
|
|
for (i = 0; i < 500; i++) {
|
|
DELAY(1);
|
|
reg = PHY_READ(sc, E1000_CR);
|
|
if (!(reg & E1000_CR_RESET))
|
|
break;
|
|
}
|
|
|
|
/* set more custom E1000 registers to magic values */
|
|
reg = PHY_READ(sc, E1000_SCR);
|
|
reg |= E1000_SCR_ASSERT_CRS_ON_TX;
|
|
PHY_WRITE(sc, E1000_SCR, reg);
|
|
|
|
reg = PHY_READ(sc, E1000_ESCR);
|
|
reg |= E1000_ESCR_TX_CLK_25;
|
|
PHY_WRITE(sc, E1000_ESCR, reg);
|
|
|
|
/* even more magic to reset DSP? */
|
|
PHY_WRITE(sc, 29, 0x1d);
|
|
PHY_WRITE(sc, 30, 0xc1);
|
|
PHY_WRITE(sc, 30, 0x00);
|
|
}
|
|
|
|
static int
|
|
e1000phy_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, E1000_CR);
|
|
PHY_WRITE(sc, E1000_CR, reg | E1000_CR_ISOLATE);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* If the interface is not up, don't do anything.
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0) {
|
|
break;
|
|
}
|
|
|
|
switch (IFM_SUBTYPE(ife->ifm_media)) {
|
|
case IFM_AUTO:
|
|
e1000phy_reset(sc);
|
|
(void)e1000phy_mii_phy_auto(sc);
|
|
break;
|
|
|
|
case IFM_1000_T:
|
|
e1000phy_reset(sc);
|
|
|
|
/* TODO - any other way to force 1000BT? */
|
|
(void)e1000phy_mii_phy_auto(sc);
|
|
break;
|
|
|
|
case IFM_100_TX:
|
|
e1000phy_reset(sc);
|
|
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
|
|
PHY_WRITE(sc, E1000_CR,
|
|
E1000_CR_FULL_DUPLEX | E1000_CR_SPEED_100);
|
|
PHY_WRITE(sc, E1000_AR, E1000_AR_100TX_FD);
|
|
} else {
|
|
PHY_WRITE(sc, E1000_CR, E1000_CR_SPEED_100);
|
|
PHY_WRITE(sc, E1000_AR, E1000_AR_100TX);
|
|
}
|
|
break;
|
|
|
|
case IFM_10_T:
|
|
e1000phy_reset(sc);
|
|
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
|
|
PHY_WRITE(sc, E1000_CR,
|
|
E1000_CR_FULL_DUPLEX | E1000_CR_SPEED_10);
|
|
PHY_WRITE(sc, E1000_AR, E1000_AR_10T_FD);
|
|
} else {
|
|
PHY_WRITE(sc, E1000_CR, E1000_CR_SPEED_10);
|
|
PHY_WRITE(sc, E1000_AR, E1000_AR_10T);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* If we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Is the interface even up?
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Only used for autonegotiation.
|
|
*/
|
|
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
|
|
break;
|
|
|
|
/*
|
|
* check for link.
|
|
* Read the status register twice; BMSR_LINK is latch-low.
|
|
*/
|
|
reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
|
|
if (reg & BMSR_LINK)
|
|
break;
|
|
|
|
/*
|
|
* Only retry autonegotiation every 5 seconds.
|
|
*/
|
|
if (++sc->mii_ticks != 5)
|
|
return (0);
|
|
|
|
sc->mii_ticks = 0;
|
|
e1000phy_reset(sc);
|
|
e1000phy_mii_phy_auto(sc);
|
|
return (0);
|
|
}
|
|
|
|
/* Update the media status. */
|
|
e1000phy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
mii_phy_update(sc, cmd);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
e1000phy_status(struct mii_softc *sc)
|
|
{
|
|
struct mii_data *mii = sc->mii_pdata;
|
|
int bmsr, bmcr, esr, ssr, isr, ar, lpar;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
bmsr = PHY_READ(sc, E1000_SR) | PHY_READ(sc, E1000_SR);
|
|
esr = PHY_READ(sc, E1000_ESR);
|
|
bmcr = PHY_READ(sc, E1000_CR);
|
|
ssr = PHY_READ(sc, E1000_SSR);
|
|
isr = PHY_READ(sc, E1000_ISR);
|
|
ar = PHY_READ(sc, E1000_AR);
|
|
lpar = PHY_READ(sc, E1000_LPAR);
|
|
|
|
if (bmsr & E1000_SR_LINK_STATUS)
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
|
|
if (bmcr & E1000_CR_LOOPBACK)
|
|
mii->mii_media_active |= IFM_LOOP;
|
|
|
|
if ((!(bmsr & E1000_SR_AUTO_NEG_COMPLETE) || !(ssr & E1000_SSR_LINK) ||
|
|
!(ssr & E1000_SSR_SPD_DPLX_RESOLVED))) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
if (ssr & E1000_SSR_1000MBS)
|
|
mii->mii_media_active |= IFM_1000_T;
|
|
else if (ssr & E1000_SSR_100MBS)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else
|
|
mii->mii_media_active |= IFM_10_T;
|
|
|
|
if (ssr & E1000_SSR_DUPLEX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
else
|
|
mii->mii_media_active |= IFM_HDX;
|
|
|
|
/* FLAG0==rx-flow-control FLAG1==tx-flow-control */
|
|
if ((ar & E1000_AR_PAUSE) && (lpar & E1000_LPAR_PAUSE)) {
|
|
mii->mii_media_active |= IFM_FLAG0 | IFM_FLAG1;
|
|
} else if (!(ar & E1000_AR_PAUSE) && (ar & E1000_AR_ASM_DIR) &&
|
|
(lpar & E1000_LPAR_PAUSE) && (lpar & E1000_LPAR_ASM_DIR)) {
|
|
mii->mii_media_active |= IFM_FLAG1;
|
|
} else if ((ar & E1000_AR_PAUSE) && (ar & E1000_AR_ASM_DIR) &&
|
|
!(lpar & E1000_LPAR_PAUSE) && (lpar & E1000_LPAR_ASM_DIR)) {
|
|
mii->mii_media_active |= IFM_FLAG0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
e1000phy_mii_phy_auto(struct mii_softc *mii)
|
|
{
|
|
|
|
PHY_WRITE(mii, E1000_AR, E1000_AR_10T | E1000_AR_10T_FD |
|
|
E1000_AR_100TX | E1000_AR_100TX_FD |
|
|
E1000_AR_PAUSE | E1000_AR_ASM_DIR);
|
|
PHY_WRITE(mii, E1000_1GCR, E1000_1GCR_1000T_FD);
|
|
PHY_WRITE(mii, E1000_CR,
|
|
E1000_CR_AUTO_NEG_ENABLE | E1000_CR_RESTART_AUTO_NEG);
|
|
|
|
return (EJUSTRETURN);
|
|
}
|