Driver for Broadcom BCM5400-family Gig-E PHYs. Programming

information gleaned from FreeBSD.
This commit is contained in:
thorpej 2001-06-01 16:49:59 +00:00
parent 4ce7dc7d21
commit 33a6994da1
3 changed files with 492 additions and 1 deletions

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sys/dev/mii/brgphy.c Normal file
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/* $NetBSD: brgphy.c,v 1.1 2001/06/01 16:49:59 thorpej 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/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.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>
int brgphymatch __P((struct device *, struct cfdata *, void *));
void brgphyattach __P((struct device *, struct device *, void *));
struct cfattach brgphy_ca = {
sizeof(struct mii_softc), brgphymatch, brgphyattach,
mii_phy_detach, mii_phy_activate
};
int brgphy_service __P((struct mii_softc *, struct mii_data *, int));
void brgphy_status __P((struct mii_softc *));
const struct mii_phy_funcs brgphy_funcs = {
brgphy_service, brgphy_status, mii_phy_reset,
};
const struct brgdev {
u_int32_t oui;
u_int32_t model;
const char *name;
} brgdevs[] = {
{ 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 },
{ 0, 0,
NULL },
};
static const struct brgdev *
brgphy_lookup(const struct mii_attach_args *ma)
{
const struct brgdev *b;
for (b = brgdevs; b->name != NULL; b++) {
if (MII_OUI(ma->mii_id1, ma->mii_id2) == b->oui &&
MII_MODEL(ma->mii_id2) == b->model)
return (b);
}
return (NULL);
}
int
brgphymatch(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct mii_attach_args *ma = aux;
if (brgphy_lookup(ma) != NULL)
return (10);
return (0);
}
void
brgphyattach(parent, self, aux)
struct device *parent, *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 brgdev *b;
b = brgphy_lookup(ma);
if (b == NULL) {
printf("\n");
panic("brgphyattach: impossible");
}
printf(": %s, rev. %d\n", b->name, MII_REV(ma->mii_id2));
sc->mii_inst = mii->mii_instance;
sc->mii_phy = ma->mii_phyno;
sc->mii_funcs = &brgphy_funcs;
sc->mii_pdata = mii;
sc->mii_flags = mii->mii_flags;
sc->mii_anegticks = 5;
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);
printf("%s: ", sc->mii_dev.dv_xname);
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
(sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
printf("no media present");
else
mii_phy_add_media(sc);
printf("\n");
}
int
brgphy_service(sc, mii, cmd)
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;
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. */
mii_phy_update(sc, cmd);
return (0);
}
void
brgphy_status(sc)
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_TX|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_TX;
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;
}
} else
mii->mii_media_active = ife->ifm_media;
}

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sys/dev/mii/brgphyreg.h Normal file
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/* $NetBSD: brgphyreg.h,v 1.1 2001/06/01 16:50:00 thorpej Exp $ */
/*
* 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.
*
* FreeBSD: src/sys/dev/mii/brgphyreg.h,v 1.1 2000/04/22 01:58:17 wpaul Exp
*/
#ifndef _DEV_MII_BRGPHYREG_H_
#define _DEV_MII_BRGPHYREG_H_
/*
* Broadcom BCM5400 registers
*/
#define BRGPHY_MII_PHY_EXTCTL 0x10 /* PHY extended control */
#define BRGPHY_PHY_EXTCTL_MAC_PHY 0x8000 /* 10BIT/GMI-interface */
#define BRGPHY_PHY_EXTCTL_DIS_CROSS 0x4000 /* Disable MDI crossover */
#define BRGPHY_PHY_EXTCTL_TX_DIS 0x2000 /* Tx output disable d*/
#define BRGPHY_PHY_EXTCTL_INT_DIS 0x1000 /* Interrupts disabled */
#define BRGPHY_PHY_EXTCTL_F_INT 0x0800 /* Force interrupt */
#define BRGPHY_PHY_EXTCTL_BY_45 0x0400 /* Bypass 4B5B-Decoder */
#define BRGPHY_PHY_EXTCTL_BY_SCR 0x0200 /* Bypass scrambler */
#define BRGPHY_PHY_EXTCTL_BY_MLT3 0x0100 /* Bypass MLT3 encoder */
#define BRGPHY_PHY_EXTCTL_BY_RXA 0x0080 /* Bypass RX alignment */
#define BRGPHY_PHY_EXTCTL_RES_SCR 0x0040 /* Reset scrambler */
#define BRGPHY_PHY_EXTCTL_EN_LTR 0x0020 /* Enable LED traffic mode */
#define BRGPHY_PHY_EXTCTL_LED_ON 0x0010 /* Force LEDs on */
#define BRGPHY_PHY_EXTCTL_LED_OFF 0x0008 /* Force LEDs off */
#define BRGPHY_PHY_EXTCTL_EX_IPG 0x0004 /* Extended TX IPG mode */
#define BRGPHY_PHY_EXTCTL_3_LED 0x0002 /* Three link LED mode */
#define BRGPHY_PHY_EXTCTL_HIGH_LA 0x0001 /* GMII Fifo Elasticy (?) */
#define BRGPHY_MII_PHY_EXTSTS 0x11 /* PHY extended status */
#define BRGPHY_PHY_EXTSTS_CROSS_STAT 0x2000 /* MDI crossover status */
#define BRGPHY_PHY_EXTSTS_INT_STAT 0x1000 /* Interrupt status */
#define BRGPHY_PHY_EXTSTS_RRS 0x0800 /* Remote receiver status */
#define BRGPHY_PHY_EXTSTS_LRS 0x0400 /* Local receiver status */
#define BRGPHY_PHY_EXTSTS_LOCKED 0x0200 /* Locked */
#define BRGPHY_PHY_EXTSTS_LS 0x0100 /* Link status */
#define BRGPHY_PHY_EXTSTS_RF 0x0080 /* Remove fault */
#define BRGPHY_PHY_EXTSTS_CE_ER 0x0040 /* Carrier ext error */
#define BRGPHY_PHY_EXTSTS_BAD_SSD 0x0020 /* Bad SSD */
#define BRGPHY_PHY_EXTSTS_BAD_ESD 0x0010 /* Bad ESS */
#define BRGPHY_PHY_EXTSTS_RX_ER 0x0008 /* RX error */
#define BRGPHY_PHY_EXTSTS_TX_ER 0x0004 /* TX error */
#define BRGPHY_PHY_EXTSTS_LOCK_ER 0x0002 /* Lock error */
#define BRGPHY_PHY_EXTSTS_MLT3_ER 0x0001 /* MLT3 code error */
#define BRGPHY_MII_RXERRCNT 0x12 /* RX error counter */
#define BRGPHY_MII_FCERRCNT 0x13 /* false carrier sense counter */
#define BGRPHY_FCERRCNT 0x00FF /* False carrier counter */
#define BRGPHY_MII_RXNOCNT 0x14 /* RX not OK counter */
#define BRGPHY_RXNOCNT_LOCAL 0xFF00 /* Local RX not OK counter */
#define BRGPHY_RXNOCNT_REMOTE 0x00FF /* Local RX not OK counter */
#define BRGPHY_MII_AUXCTL 0x18 /* AUX control */
#define BRGPHY_AUXCTL_LOW_SQ 0x8000 /* Low squelch */
#define BRGPHY_AUXCTL_LONG_PKT 0x4000 /* RX long packets */
#define BRGPHY_AUXCTL_ER_CTL 0x3000 /* Edgerate control */
#define BRGPHY_AUXCTL_TX_TST 0x0400 /* TX test, always 1 */
#define BRGPHY_AUXCTL_DIS_PRF 0x0080 /* dis part resp filter */
#define BRGPHY_AUXCTL_DIAG_MODE 0x0004 /* Diagnostic mode */
#define BRGPHY_MII_AUXSTS 0x19 /* AUX status */
#define BRGPHY_AUXSTS_ACOMP 0x8000 /* autoneg complete */
#define BRGPHY_AUXSTS_AN_ACK 0x4000 /* autoneg complete ack */
#define BRGPHY_AUXSTS_AN_ACK_D 0x2000 /* autoneg complete ack detect */
#define BRGPHY_AUXSTS_AN_NPW 0x1000 /* autoneg next page wait */
#define BRGPHY_AUXSTS_AN_RES 0x0700 /* AN HDC */
#define BRGPHY_AUXSTS_PDF 0x0080 /* Parallel detect. fault */
#define BRGPHY_AUXSTS_RF 0x0040 /* remote fault */
#define BRGPHY_AUXSTS_ANP_R 0x0020 /* AN page received */
#define BRGPHY_AUXSTS_LP_ANAB 0x0010 /* LP AN ability */
#define BRGPHY_AUXSTS_LP_NPAB 0x0008 /* LP Next page ability */
#define BRGPHY_AUXSTS_LINK 0x0004 /* Link status */
#define BRGPHY_AUXSTS_PRR 0x0002 /* Pause resolution-RX */
#define BRGPHY_AUXSTS_PRT 0x0001 /* Pause resolution-TX */
#define BRGPHY_RES_1000FD 0x0700 /* 1000baseT full duplex */
#define BRGPHY_RES_1000HD 0x0600 /* 1000baseT half duplex */
#define BRGPHY_RES_100FD 0x0500 /* 100baseT full duplex */
#define BRGPHY_RES_100T4 0x0400 /* 100baseT4 */
#define BRGPHY_RES_100HD 0x0300 /* 100baseT half duplex */
#define BRGPHY_RES_10FD 0x0200 /* 10baseT full duplex */
#define BRGPHY_RES_10HD 0x0100 /* 10baseT half duplex */
#define BRGPHY_MII_ISR 0x1A /* interrupt status */
#define BRGPHY_ISR_PSERR 0x4000 /* Pair swap error */
#define BRGPHY_ISR_MDXI_SC 0x2000 /* MDIX Status Change */
#define BRGPHY_ISR_HCT 0x1000 /* counter above 32K */
#define BRGPHY_ISR_LCT 0x0800 /* all counter below 128 */
#define BRGPHY_ISR_AN_PR 0x0400 /* Autoneg page received */
#define BRGPHY_ISR_NO_HDCL 0x0200 /* No HCD Link */
#define BRGPHY_ISR_NO_HDC 0x0100 /* No HCD */
#define BRGPHY_ISR_USHDC 0x0080 /* Negotiated Unsupported HCD */
#define BRGPHY_ISR_SCR_S_ERR 0x0040 /* Scrambler sync error */
#define BRGPHY_ISR_RRS_CHG 0x0020 /* Remote RX status change */
#define BRGPHY_ISR_LRS_CHG 0x0010 /* Local RX status change */
#define BRGPHY_ISR_DUP_CHG 0x0008 /* Duplex mode change */
#define BRGPHY_ISR_LSP_CHG 0x0004 /* Link speed changed */
#define BRGPHY_ISR_LNK_CHG 0x0002 /* Link status change */
#define BRGPHY_ISR_CRCERR 0x0001 /* CEC error */
#define BRGPHY_MII_IMR 0x1B /* interrupt mask */
#define BRGPHY_IMR_PSERR 0x4000 /* Pair swap error */
#define BRGPHY_IMR_MDXI_SC 0x2000 /* MDIX Status Change */
#define BRGPHY_IMR_HCT 0x1000 /* counter above 32K */
#define BRGPHY_IMR_LCT 0x0800 /* all counter below 128 */
#define BRGPHY_IMR_AN_PR 0x0400 /* Autoneg page received */
#define BRGPHY_IMR_NO_HDCL 0x0200 /* No HCD Link */
#define BRGPHY_IMR_NO_HDC 0x0100 /* No HCD */
#define BRGPHY_IMR_USHDC 0x0080 /* Negotiated Unsupported HCD */
#define BRGPHY_IMR_SCR_S_ERR 0x0040 /* Scrambler sync error */
#define BRGPHY_IMR_RRS_CHG 0x0020 /* Remote RX status change */
#define BRGPHY_IMR_LRS_CHG 0x0010 /* Local RX status change */
#define BRGPHY_IMR_DUP_CHG 0x0008 /* Duplex mode change */
#define BRGPHY_IMR_LSP_CHG 0x0004 /* Link speed changed */
#define BRGPHY_IMR_LNK_CHG 0x0002 /* Link status change */
#define BRGPHY_IMR_CRCERR 0x0001 /* CEC error */
#define BRGPHY_INTRS \
~(BRGPHY_IMR_LNK_CHG|BRGPHY_IMR_LSP_CHG|BRGPHY_IMR_DUP_CHG)
#endif /* _DEV_BRGPHY_MIIREG_H_ */

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@ -1,4 +1,4 @@
# $NetBSD: files.mii,v 1.20 2001/05/31 16:06:58 thorpej Exp $
# $NetBSD: files.mii,v 1.21 2001/06/01 16:50:00 thorpej Exp $
file dev/mii/mii.c mii
@ -10,6 +10,10 @@ file dev/mii/mii_physubr.c mii_phy
define ukphy_subr
file dev/mii/ukphy_subr.c ukphy_subr
device brgphy: mii_phy
attach brgphy at mii
file dev/mii/brgphy.c brgphy
device tlphy: mii_phy
attach tlphy at mii
file dev/mii/tlphy.c tlphy