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freebsd-skq/sys/dev/mii/brgphy.c
Marius Strobl 87a303dc63 - Even after masking the media with IFM_GMASK the result may have bits 
besides the duplex ones set so just comparing it with IFM_FDX may lead
  to false negatives.
- Simplify ciphy_service() to only set the manual configuration bits
  once after we have figured them all out. This also means we no longer
  unnecessarily update the hardware along the road.

MFC after:	1 week
2011-01-14 19:29:53 +00:00

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/*-
* Copyright (c) 2000
* Bill Paul <wpaul@ee.columbia.edu>. 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 Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
* 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 Broadcom BCM54xx/57xx 1000baseTX PHY.
*/
#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/ethernet.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include "miidevs.h"
#include <dev/mii/brgphyreg.h>
#include <net/if_arp.h>
#include <machine/bus.h>
#include <dev/bge/if_bgereg.h>
#include <dev/bce/if_bcereg.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include "miibus_if.h"
static int brgphy_probe(device_t);
static int brgphy_attach(device_t);
struct brgphy_softc {
struct mii_softc mii_sc;
int mii_oui;
int mii_model;
int mii_rev;
int serdes_flags; /* Keeps track of the serdes type used */
#define BRGPHY_5706S 0x0001
#define BRGPHY_5708S 0x0002
#define BRGPHY_NOANWAIT 0x0004
#define BRGPHY_5709S 0x0008
int bce_phy_flags; /* PHY flags transferred from the MAC driver */
};
static device_method_t brgphy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, brgphy_probe),
DEVMETHOD(device_attach, brgphy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
{ 0, 0 }
};
static devclass_t brgphy_devclass;
static driver_t brgphy_driver = {
"brgphy",
brgphy_methods,
sizeof(struct brgphy_softc)
};
DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
static int brgphy_service(struct mii_softc *, struct mii_data *, int);
static void brgphy_setmedia(struct mii_softc *, int);
static void brgphy_status(struct mii_softc *);
static void brgphy_mii_phy_auto(struct mii_softc *, int);
static void brgphy_reset(struct mii_softc *);
static void brgphy_enable_loopback(struct mii_softc *);
static void bcm5401_load_dspcode(struct mii_softc *);
static void bcm5411_load_dspcode(struct mii_softc *);
static void bcm54k2_load_dspcode(struct mii_softc *);
static void brgphy_fixup_5704_a0_bug(struct mii_softc *);
static void brgphy_fixup_adc_bug(struct mii_softc *);
static void brgphy_fixup_adjust_trim(struct mii_softc *);
static void brgphy_fixup_ber_bug(struct mii_softc *);
static void brgphy_fixup_crc_bug(struct mii_softc *);
static void brgphy_fixup_jitter_bug(struct mii_softc *);
static void brgphy_ethernet_wirespeed(struct mii_softc *);
static void brgphy_jumbo_settings(struct mii_softc *, u_long);
static const struct mii_phydesc brgphys[] = {
MII_PHY_DESC(xxBROADCOM, BCM5400),
MII_PHY_DESC(xxBROADCOM, BCM5401),
MII_PHY_DESC(xxBROADCOM, BCM5411),
MII_PHY_DESC(xxBROADCOM, BCM54K2),
MII_PHY_DESC(xxBROADCOM, BCM5701),
MII_PHY_DESC(xxBROADCOM, BCM5703),
MII_PHY_DESC(xxBROADCOM, BCM5704),
MII_PHY_DESC(xxBROADCOM, BCM5705),
MII_PHY_DESC(xxBROADCOM, BCM5706),
MII_PHY_DESC(xxBROADCOM, BCM5714),
MII_PHY_DESC(xxBROADCOM, BCM5750),
MII_PHY_DESC(xxBROADCOM, BCM5752),
MII_PHY_DESC(xxBROADCOM, BCM5754),
MII_PHY_DESC(xxBROADCOM, BCM5780),
MII_PHY_DESC(xxBROADCOM, BCM5708C),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5482S),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5755),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5787),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5708S),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5709CAX),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5722),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5784),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5709C),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5761),
MII_PHY_DESC(xxBROADCOM_ALT1, BCM5709S),
MII_PHY_DESC(xxBROADCOM_ALT2, BCM5717C),
MII_PHY_DESC(BROADCOM2, BCM5906),
MII_PHY_END
};
#define HS21_PRODUCT_ID "IBM eServer BladeCenter HS21"
#define HS21_BCM_CHIPID 0x57081021
static int
detect_hs21(struct bce_softc *bce_sc)
{
char *sysenv;
int found;
found = 0;
if (bce_sc->bce_chipid == HS21_BCM_CHIPID) {
sysenv = getenv("smbios.system.product");
if (sysenv != NULL) {
if (strncmp(sysenv, HS21_PRODUCT_ID,
strlen(HS21_PRODUCT_ID)) == 0)
found = 1;
freeenv(sysenv);
}
}
return (found);
}
/* Search for our PHY in the list of known PHYs */
static int
brgphy_probe(device_t dev)
{
return (mii_phy_dev_probe(dev, brgphys, BUS_PROBE_DEFAULT));
}
/* Attach the PHY to the MII bus */
static int
brgphy_attach(device_t dev)
{
struct brgphy_softc *bsc;
struct bge_softc *bge_sc = NULL;
struct bce_softc *bce_sc = NULL;
struct mii_softc *sc;
struct mii_attach_args *ma;
struct mii_data *mii;
struct ifnet *ifp;
bsc = device_get_softc(dev);
sc = &bsc->mii_sc;
ma = device_get_ivars(dev);
sc->mii_dev = device_get_parent(dev);
mii = ma->mii_data;
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
/* Initialize mii_softc structure */
sc->mii_flags = miibus_get_flags(dev);
sc->mii_inst = mii->mii_instance++;
sc->mii_phy = ma->mii_phyno;
sc->mii_service = brgphy_service;
sc->mii_pdata = mii;
/*
* At least some variants wedge when isolating, at least some also
* don't support loopback.
*/
sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP | MIIF_NOMANPAUSE;
/* Initialize brgphy_softc structure */
bsc->mii_oui = MII_OUI(ma->mii_id1, ma->mii_id2);
bsc->mii_model = MII_MODEL(ma->mii_id2);
bsc->mii_rev = MII_REV(ma->mii_id2);
bsc->serdes_flags = 0;
if (bootverbose)
device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
bsc->mii_oui, bsc->mii_model, bsc->mii_rev);
/* Handle any special cases based on the PHY ID */
switch (bsc->mii_oui) {
case MII_OUI_BROADCOM:
case MII_OUI_BROADCOM2:
break;
case MII_OUI_xxBROADCOM:
switch (bsc->mii_model) {
case MII_MODEL_xxBROADCOM_BCM5706:
case MII_MODEL_xxBROADCOM_BCM5714:
/*
* The 5464 PHY used in the 5706 supports both copper
* and fiber interfaces over GMII. Need to check the
* shadow registers to see which mode is actually
* in effect, and therefore whether we have 5706C or
* 5706S.
*/
PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
BRGPHY_SHADOW_1C_MODE_CTRL);
if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
BRGPHY_SHADOW_1C_ENA_1000X) {
bsc->serdes_flags |= BRGPHY_5706S;
sc->mii_flags |= MIIF_HAVEFIBER;
}
break;
} break;
case MII_OUI_xxBROADCOM_ALT1:
switch (bsc->mii_model) {
case MII_MODEL_xxBROADCOM_ALT1_BCM5708S:
bsc->serdes_flags |= BRGPHY_5708S;
sc->mii_flags |= MIIF_HAVEFIBER;
break;
case MII_MODEL_xxBROADCOM_ALT1_BCM5709S:
bsc->serdes_flags |= BRGPHY_5709S;
sc->mii_flags |= MIIF_HAVEFIBER;
break;
}
break;
case MII_OUI_xxBROADCOM_ALT2:
/* No special handling yet. */
break;
default:
device_printf(dev, "Unrecognized OUI for PHY!\n");
}
ifp = sc->mii_pdata->mii_ifp;
/* Find the MAC driver associated with this PHY. */
if (strcmp(ifp->if_dname, "bge") == 0) {
bge_sc = ifp->if_softc;
} else if (strcmp(ifp->if_dname, "bce") == 0) {
bce_sc = ifp->if_softc;
}
brgphy_reset(sc);
/* Read the PHY's capabilities. */
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);
device_printf(dev, " ");
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
/* Add the supported media types */
if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
mii_phy_add_media(sc);
printf("\n");
} else {
sc->mii_anegticks = MII_ANEGTICKS_GIGE;
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
BRGPHY_S1000 | BRGPHY_BMCR_FDX);
printf("1000baseSX-FDX, ");
/* 2.5G support is a software enabled feature on the 5708S and 5709S. */
if (bce_sc && (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)) {
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX, sc->mii_inst), 0);
printf("2500baseSX-FDX, ");
} else if ((bsc->serdes_flags & BRGPHY_5708S) && bce_sc &&
(detect_hs21(bce_sc) != 0)) {
/*
* There appears to be certain silicon revision
* in IBM HS21 blades that is having issues with
* this driver wating for the auto-negotiation to
* complete. This happens with a specific chip id
* only and when the 1000baseSX-FDX is the only
* mode. Workaround this issue since it's unlikely
* to be ever addressed.
*/
printf("auto-neg workaround, ");
bsc->serdes_flags |= BRGPHY_NOANWAIT;
}
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 int
brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int val;
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
/* If the interface is not up, don't do anything. */
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
break;
/* Todo: Why is this here? Is it really needed? */
brgphy_reset(sc); /* XXX hardware bug work-around */
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_AUTO:
brgphy_mii_phy_auto(sc, ife->ifm_media);
break;
case IFM_2500_SX:
case IFM_1000_SX:
case IFM_1000_T:
case IFM_100_TX:
case IFM_10_T:
brgphy_setmedia(sc, ife->ifm_media);
break;
default:
return (EINVAL);
}
break;
case MII_TICK:
/* Bail if the interface isn't up. */
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
return (0);
/* Bail if autoneg isn't in process. */
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
sc->mii_ticks = 0;
break;
}
/*
* Check to see if we have link. If we do, we don't
* need to restart the autonegotiation process.
*/
val = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
if (val & BMSR_LINK) {
sc->mii_ticks = 0; /* Reset autoneg timer. */
break;
}
/* Announce link loss right after it happens. */
if (sc->mii_ticks++ == 0)
break;
/* Only retry autonegotiation every mii_anegticks seconds. */
if (sc->mii_ticks <= sc->mii_anegticks)
break;
/* Retry autonegotiation */
sc->mii_ticks = 0;
brgphy_mii_phy_auto(sc, ife->ifm_media);
break;
}
/* Update the media status. */
brgphy_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) {
switch (bsc->mii_oui) {
case MII_OUI_BROADCOM:
break;
case MII_OUI_xxBROADCOM:
switch (bsc->mii_model) {
case MII_MODEL_xxBROADCOM_BCM5400:
bcm5401_load_dspcode(sc);
break;
case MII_MODEL_xxBROADCOM_BCM5401:
if (bsc->mii_rev == 1 || bsc->mii_rev == 3)
bcm5401_load_dspcode(sc);
break;
case MII_MODEL_xxBROADCOM_BCM5411:
bcm5411_load_dspcode(sc);
break;
case MII_MODEL_xxBROADCOM_BCM54K2:
bcm54k2_load_dspcode(sc);
break;
}
break;
case MII_OUI_xxBROADCOM_ALT1:
break;
}
}
mii_phy_update(sc, cmd);
return (0);
}
/****************************************************************************/
/* Sets the PHY link speed. */
/* */
/* Returns: */
/* None */
/****************************************************************************/
static void
brgphy_setmedia(struct mii_softc *sc, int media)
{
int bmcr = 0, gig;
switch (IFM_SUBTYPE(media)) {
case IFM_2500_SX:
break;
case IFM_1000_SX:
case IFM_1000_T:
bmcr = BRGPHY_S1000;
break;
case IFM_100_TX:
bmcr = BRGPHY_S100;
break;
case IFM_10_T:
default:
bmcr = BRGPHY_S10;
break;
}
if ((media & IFM_FDX) != 0) {
bmcr |= BRGPHY_BMCR_FDX;
gig = BRGPHY_1000CTL_AFD;
} else {
gig = BRGPHY_1000CTL_AHD;
}
/* Force loopback to disconnect PHY from Ethernet medium. */
brgphy_enable_loopback(sc);
PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0);
PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
if (IFM_SUBTYPE(media) != IFM_1000_T &&
IFM_SUBTYPE(media) != IFM_1000_SX) {
PHY_WRITE(sc, BRGPHY_MII_BMCR, bmcr);
return;
}
if (IFM_SUBTYPE(media) == IFM_1000_T) {
gig |= BRGPHY_1000CTL_MSE;
if ((media & IFM_ETH_MASTER) != 0)
gig |= BRGPHY_1000CTL_MSC;
}
PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig);
PHY_WRITE(sc, BRGPHY_MII_BMCR,
bmcr | BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
}
/****************************************************************************/
/* Set the media status based on the PHY settings. */
/* */
/* Returns: */
/* None */
/****************************************************************************/
static void
brgphy_status(struct mii_softc *sc)
{
struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
struct mii_data *mii = sc->mii_pdata;
int aux, bmcr, bmsr, val, xstat;
u_int flowstat;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
bmsr = PHY_READ(sc, BRGPHY_MII_BMSR) | PHY_READ(sc, BRGPHY_MII_BMSR);
bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
if (bmcr & BRGPHY_BMCR_LOOP) {
mii->mii_media_active |= IFM_LOOP;
}
if ((bmcr & BRGPHY_BMCR_AUTOEN) &&
(bmsr & BRGPHY_BMSR_ACOMP) == 0 &&
(bsc->serdes_flags & BRGPHY_NOANWAIT) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
return;
}
if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
/*
* NB: reading the ANAR, ANLPAR or 1000STS after the AUXSTS
* wedges at least the PHY of BCM5704 (but not others).
*/
flowstat = mii_phy_flowstatus(sc);
xstat = PHY_READ(sc, BRGPHY_MII_1000STS);
aux = PHY_READ(sc, BRGPHY_MII_AUXSTS);
/* If copper link is up, get the negotiated speed/duplex. */
if (aux & BRGPHY_AUXSTS_LINK) {
mii->mii_media_status |= IFM_ACTIVE;
switch (aux & BRGPHY_AUXSTS_AN_RES) {
case BRGPHY_RES_1000FD:
mii->mii_media_active |= IFM_1000_T | IFM_FDX; break;
case BRGPHY_RES_1000HD:
mii->mii_media_active |= IFM_1000_T | IFM_HDX; 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 | IFM_HDX; 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 | IFM_HDX; break;
default:
mii->mii_media_active |= IFM_NONE; break;
}
if ((mii->mii_media_active & IFM_FDX) != 0)
mii->mii_media_active |= flowstat;
if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T &&
(xstat & BRGPHY_1000STS_MSR) != 0)
mii->mii_media_active |= IFM_ETH_MASTER;
}
} else {
/* Todo: Add support for flow control. */
/* If serdes link is up, get the negotiated speed/duplex. */
if (bmsr & BRGPHY_BMSR_LINK) {
mii->mii_media_status |= IFM_ACTIVE;
}
/* Check the link speed/duplex based on the PHY type. */
if (bsc->serdes_flags & BRGPHY_5706S) {
mii->mii_media_active |= IFM_1000_SX;
/* If autoneg enabled, read negotiated duplex settings */
if (bmcr & BRGPHY_BMCR_AUTOEN) {
val = PHY_READ(sc, BRGPHY_SERDES_ANAR) & PHY_READ(sc, BRGPHY_SERDES_ANLPAR);
if (val & BRGPHY_SERDES_ANAR_FDX)
mii->mii_media_active |= IFM_FDX;
else
mii->mii_media_active |= IFM_HDX;
}
} else if (bsc->serdes_flags & BRGPHY_5708S) {
PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
xstat = PHY_READ(sc, BRGPHY_5708S_PG0_1000X_STAT1);
/* Check for MRBE auto-negotiated speed results. */
switch (xstat & BRGPHY_5708S_PG0_1000X_STAT1_SPEED_MASK) {
case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_10:
mii->mii_media_active |= IFM_10_FL; break;
case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_100:
mii->mii_media_active |= IFM_100_FX; break;
case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_1G:
mii->mii_media_active |= IFM_1000_SX; break;
case BRGPHY_5708S_PG0_1000X_STAT1_SPEED_25G:
mii->mii_media_active |= IFM_2500_SX; break;
}
/* Check for MRBE auto-negotiated duplex results. */
if (xstat & BRGPHY_5708S_PG0_1000X_STAT1_FDX)
mii->mii_media_active |= IFM_FDX;
else
mii->mii_media_active |= IFM_HDX;
} else if (bsc->serdes_flags & BRGPHY_5709S) {
/* Select GP Status Block of the AN MMD, get autoneg results. */
PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_GP_STATUS);
xstat = PHY_READ(sc, BRGPHY_GP_STATUS_TOP_ANEG_STATUS);
/* Restore IEEE0 block (assumed in all brgphy(4) code). */
PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
/* Check for MRBE auto-negotiated speed results. */
switch (xstat & BRGPHY_GP_STATUS_TOP_ANEG_SPEED_MASK) {
case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_10:
mii->mii_media_active |= IFM_10_FL; break;
case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_100:
mii->mii_media_active |= IFM_100_FX; break;
case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_1G:
mii->mii_media_active |= IFM_1000_SX; break;
case BRGPHY_GP_STATUS_TOP_ANEG_SPEED_25G:
mii->mii_media_active |= IFM_2500_SX; break;
}
/* Check for MRBE auto-negotiated duplex results. */
if (xstat & BRGPHY_GP_STATUS_TOP_ANEG_FDX)
mii->mii_media_active |= IFM_FDX;
else
mii->mii_media_active |= IFM_HDX;
}
}
}
static void
brgphy_mii_phy_auto(struct mii_softc *sc, int media)
{
struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
int anar, ktcr = 0;
brgphy_reset(sc);
if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
if ((media & IFM_FLOW) != 0 ||
(sc->mii_flags & MIIF_FORCEPAUSE) != 0)
anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP;
PHY_WRITE(sc, BRGPHY_MII_ANAR, anar);
} else {
anar = BRGPHY_SERDES_ANAR_FDX | BRGPHY_SERDES_ANAR_HDX;
if ((media & IFM_FLOW) != 0 ||
(sc->mii_flags & MIIF_FORCEPAUSE) != 0)
anar |= BRGPHY_SERDES_ANAR_BOTH_PAUSE;
PHY_WRITE(sc, BRGPHY_SERDES_ANAR, anar);
}
ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
if (bsc->mii_model == MII_MODEL_xxBROADCOM_BCM5701)
ktcr |= BRGPHY_1000CTL_MSE | BRGPHY_1000CTL_MSC;
PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr);
ktcr = PHY_READ(sc, BRGPHY_MII_1000CTL);
PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN |
BRGPHY_BMCR_STARTNEG);
PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
}
/* Enable loopback to force the link down. */
static void
brgphy_enable_loopback(struct mii_softc *sc)
{
int i;
PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP);
for (i = 0; i < 15000; i++) {
if (!(PHY_READ(sc, BRGPHY_MII_BMSR) & BRGPHY_BMSR_LINK))
break;
DELAY(10);
}
}
/* 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);
}
void
bcm54k2_load_dspcode(struct mii_softc *sc)
{
static const struct {
int reg;
uint16_t val;
} dspcode[] = {
{ 4, 0x01e1 },
{ 9, 0x0300 },
{ 0, 0 },
};
int i;
for (i = 0; dspcode[i].reg != 0; i++)
PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
}
static void
brgphy_fixup_5704_a0_bug(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
brgphy_fixup_adc_bug(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
brgphy_fixup_adjust_trim(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, 0x110b },
{ BRGPHY_MII_TEST1, 0x0014 },
{ 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);
}
static void
brgphy_fixup_ber_bug(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);
}
static void
brgphy_fixup_crc_bug(struct mii_softc *sc)
{
static const struct {
int reg;
uint16_t val;
} dspcode[] = {
{ BRGPHY_MII_DSP_RW_PORT, 0x0a75 },
{ 0x1c, 0x8c68 },
{ 0x1c, 0x8d68 },
{ 0x1c, 0x8c68 },
{ 0, 0 },
};
int i;
for (i = 0; dspcode[i].reg != 0; i++)
PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val);
}
static void
brgphy_fixup_jitter_bug(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, 0x010b },
{ 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);
}
static void
brgphy_fixup_disable_early_dac(struct mii_softc *sc)
{
uint32_t val;
PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x0f08);
val = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT);
val &= ~(1 << 8);
PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, val);
}
static void
brgphy_ethernet_wirespeed(struct mii_softc *sc)
{
uint32_t val;
/* Enable Ethernet@WireSpeed. */
PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007);
val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4));
}
static void
brgphy_jumbo_settings(struct mii_softc *sc, u_long mtu)
{
struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
uint32_t val;
/* Set or clear jumbo frame settings in the PHY. */
if (mtu > ETHER_MAX_LEN) {
if (bsc->mii_model == MII_MODEL_xxBROADCOM_BCM5401) {
/* BCM5401 PHY cannot read-modify-write. */
PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20);
} else {
PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
val | BRGPHY_AUXCTL_LONG_PKT);
}
val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
val | BRGPHY_PHY_EXTCTL_HIGH_LA);
} else {
PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7);
val = PHY_READ(sc, BRGPHY_MII_AUXCTL);
PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7));
val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL);
PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
val & ~BRGPHY_PHY_EXTCTL_HIGH_LA);
}
}
static void
brgphy_reset(struct mii_softc *sc)
{
struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
struct bge_softc *bge_sc = NULL;
struct bce_softc *bce_sc = NULL;
struct ifnet *ifp;
int val;
/* Perform a standard PHY reset. */
mii_phy_reset(sc);
/* Handle any PHY specific procedures following the reset. */
switch (bsc->mii_oui) {
case MII_OUI_BROADCOM:
break;
case MII_OUI_xxBROADCOM:
switch (bsc->mii_model) {
case MII_MODEL_xxBROADCOM_BCM5400:
bcm5401_load_dspcode(sc);
break;
case MII_MODEL_xxBROADCOM_BCM5401:
if (bsc->mii_rev == 1 || bsc->mii_rev == 3)
bcm5401_load_dspcode(sc);
break;
case MII_MODEL_xxBROADCOM_BCM5411:
bcm5411_load_dspcode(sc);
break;
case MII_MODEL_xxBROADCOM_BCM54K2:
bcm54k2_load_dspcode(sc);
break;
}
break;
case MII_OUI_xxBROADCOM_ALT1:
case MII_OUI_xxBROADCOM_ALT2:
break;
}
ifp = sc->mii_pdata->mii_ifp;
/* Find the driver associated with this PHY. */
if (strcmp(ifp->if_dname, "bge") == 0) {
bge_sc = ifp->if_softc;
} else if (strcmp(ifp->if_dname, "bce") == 0) {
bce_sc = ifp->if_softc;
}
if (bge_sc) {
/* Fix up various bugs */
if (bge_sc->bge_phy_flags & BGE_PHY_5704_A0_BUG)
brgphy_fixup_5704_a0_bug(sc);
if (bge_sc->bge_phy_flags & BGE_PHY_ADC_BUG)
brgphy_fixup_adc_bug(sc);
if (bge_sc->bge_phy_flags & BGE_PHY_ADJUST_TRIM)
brgphy_fixup_adjust_trim(sc);
if (bge_sc->bge_phy_flags & BGE_PHY_BER_BUG)
brgphy_fixup_ber_bug(sc);
if (bge_sc->bge_phy_flags & BGE_PHY_CRC_BUG)
brgphy_fixup_crc_bug(sc);
if (bge_sc->bge_phy_flags & BGE_PHY_JITTER_BUG)
brgphy_fixup_jitter_bug(sc);
brgphy_jumbo_settings(sc, ifp->if_mtu);
if (bge_sc->bge_phy_flags & BGE_PHY_WIRESPEED)
brgphy_ethernet_wirespeed(sc);
/* Enable Link LED on Dell boxes */
if (bge_sc->bge_phy_flags & BGE_PHY_NO_3LED) {
PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) &
~BRGPHY_PHY_EXTCTL_3_LED);
}
/* Adjust output voltage (From Linux driver) */
if (bge_sc->bge_asicrev == BGE_ASICREV_BCM5906)
PHY_WRITE(sc, BRGPHY_MII_EPHY_PTEST, 0x12);
} else if (bce_sc) {
if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5708 &&
(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
/* Store autoneg capabilities/results in digital block (Page 0) */
PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG3_PG2);
PHY_WRITE(sc, BRGPHY_5708S_PG2_DIGCTL_3_0,
BRGPHY_5708S_PG2_DIGCTL_3_0_USE_IEEE);
PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR, BRGPHY_5708S_DIG_PG0);
/* Enable fiber mode and autodetection */
PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL1,
PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL1) |
BRGPHY_5708S_PG0_1000X_CTL1_AUTODET_EN |
BRGPHY_5708S_PG0_1000X_CTL1_FIBER_MODE);
/* Enable parallel detection */
PHY_WRITE(sc, BRGPHY_5708S_PG0_1000X_CTL2,
PHY_READ(sc, BRGPHY_5708S_PG0_1000X_CTL2) |
BRGPHY_5708S_PG0_1000X_CTL2_PAR_DET_EN);
/* Advertise 2.5G support through next page during autoneg */
if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
PHY_WRITE(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1,
PHY_READ(sc, BRGPHY_5708S_ANEG_NXT_PG_XMIT1) |
BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G);
/* Increase TX signal amplitude */
if ((BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_A0) ||
(BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B0) ||
(BCE_CHIP_ID(bce_sc) == BCE_CHIP_ID_5708_B1)) {
PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
BRGPHY_5708S_TX_MISC_PG5);
PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL1,
PHY_READ(sc, BRGPHY_5708S_PG5_TXACTL1) & ~0x30);
PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
BRGPHY_5708S_DIG_PG0);
}
/* Backplanes use special driver/pre-driver/pre-emphasis values. */
if ((bce_sc->bce_shared_hw_cfg & BCE_SHARED_HW_CFG_PHY_BACKPLANE) &&
(bce_sc->bce_port_hw_cfg & BCE_PORT_HW_CFG_CFG_TXCTL3_MASK)) {
PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
BRGPHY_5708S_TX_MISC_PG5);
PHY_WRITE(sc, BRGPHY_5708S_PG5_TXACTL3,
bce_sc->bce_port_hw_cfg &
BCE_PORT_HW_CFG_CFG_TXCTL3_MASK);
PHY_WRITE(sc, BRGPHY_5708S_BLOCK_ADDR,
BRGPHY_5708S_DIG_PG0);
}
} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709 &&
(bce_sc->bce_phy_flags & BCE_PHY_SERDES_FLAG)) {
/* Select the SerDes Digital block of the AN MMD. */
PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_SERDES_DIG);
val = PHY_READ(sc, BRGPHY_SERDES_DIG_1000X_CTL1);
val &= ~BRGPHY_SD_DIG_1000X_CTL1_AUTODET;
val |= BRGPHY_SD_DIG_1000X_CTL1_FIBER;
PHY_WRITE(sc, BRGPHY_SERDES_DIG_1000X_CTL1, val);
/* Select the Over 1G block of the AN MMD. */
PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_OVER_1G);
/* Enable autoneg "Next Page" to advertise 2.5G support. */
val = PHY_READ(sc, BRGPHY_OVER_1G_UNFORMAT_PG1);
if (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
val |= BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
else
val &= ~BRGPHY_5708S_ANEG_NXT_PG_XMIT1_25G;
PHY_WRITE(sc, BRGPHY_OVER_1G_UNFORMAT_PG1, val);
/* Select the Multi-Rate Backplane Ethernet block of the AN MMD. */
PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_MRBE);
/* Enable MRBE speed autoneg. */
val = PHY_READ(sc, BRGPHY_MRBE_MSG_PG5_NP);
val |= BRGPHY_MRBE_MSG_PG5_NP_MBRE |
BRGPHY_MRBE_MSG_PG5_NP_T2;
PHY_WRITE(sc, BRGPHY_MRBE_MSG_PG5_NP, val);
/* Select the Clause 73 User B0 block of the AN MMD. */
PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_CL73_USER_B0);
/* Enable MRBE speed autoneg. */
PHY_WRITE(sc, BRGPHY_CL73_USER_B0_MBRE_CTL1,
BRGPHY_CL73_USER_B0_MBRE_CTL1_NP_AFT_BP |
BRGPHY_CL73_USER_B0_MBRE_CTL1_STA_MGR |
BRGPHY_CL73_USER_B0_MBRE_CTL1_ANEG);
/* Restore IEEE0 block (assumed in all brgphy(4) code). */
PHY_WRITE(sc, BRGPHY_BLOCK_ADDR, BRGPHY_BLOCK_ADDR_COMBO_IEEE0);
} else if (BCE_CHIP_NUM(bce_sc) == BCE_CHIP_NUM_5709) {
if ((BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Ax) ||
(BCE_CHIP_REV(bce_sc) == BCE_CHIP_REV_Bx))
brgphy_fixup_disable_early_dac(sc);
brgphy_jumbo_settings(sc, ifp->if_mtu);
brgphy_ethernet_wirespeed(sc);
} else {
brgphy_fixup_ber_bug(sc);
brgphy_jumbo_settings(sc, ifp->if_mtu);
brgphy_ethernet_wirespeed(sc);
}
}
}
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