NetBSD-5.0.2/sys/arch/newsmips/apbus/if_tlp_ap.c
/* $NetBSD: if_tlp_ap.c,v 1.10 2008/04/28 20:23:30 martin Exp $ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Atsushi Onoe.
*
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_tlp_ap.c,v 1.10 2008/04/28 20:23:30 martin Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <mips/cache.h>
#include <dev/mii/miivar.h>
#include <dev/mii/mii_bitbang.h>
#include <dev/ic/tulipreg.h>
#include <dev/ic/tulipvar.h>
#include <newsmips/apbus/apbusvar.h>
#define TLP_AP_ROM 0x00000000 /* AProm entry address */
#define TLP_AP_CFG 0x00040000 /* PCI configuration registers */
#define TLP_AP_CFG_CFID 0x00 /* Identification */
#define TLP_AP_CFG_CFCS 0x04 /* Command and status */
#define TLP_AP_CFG_CFRV 0x08 /* Revision */
#define TLP_AP_CFG_CFLT 0x0c /* Latency timer */
#define TLP_AP_CFG_CBIO 0x10 /* Base I/O address */
#define TLP_AP_CFG_CBMA 0x14 /* Base memory address */
#define TLP_AP_CFG_CFIT 0x3c /* Interrupt */
#define TLP_AP_CSR 0x00080000 /* CSR base address */
#define TLP_AP_RST 0x00100000 /* Board Reset */
struct tulip_ap_softc {
struct tulip_softc sc_tulip; /* real Tulip softc */
bus_space_tag_t sc_cfst;
bus_space_handle_t sc_cfsh;
};
static int tlp_ap_match(struct device *, struct cfdata *, void *);
static void tlp_ap_attach(struct device *, struct device *, void *);
CFATTACH_DECL(tlp_ap, sizeof(struct tulip_ap_softc),
tlp_ap_match, tlp_ap_attach, NULL, NULL);
static void tlp_ap_preinit(struct tulip_softc *);
static void tlp_ap_tmsw_init(struct tulip_softc *);
static void tlp_ap_getmedia(struct tulip_softc *, struct ifmediareq *);
static int tlp_ap_setmedia(struct tulip_softc *);
const struct tulip_mediasw tlp_ap_mediasw = {
tlp_ap_tmsw_init, tlp_ap_getmedia, tlp_ap_setmedia
};
static int
tlp_ap_match(struct device *parent, struct cfdata *cf, void *aux)
{
struct apbus_attach_args *apa = aux;
if (strcmp(apa->apa_name, "cbasetx") != 0)
return 0;
return 1;
}
/*
* Install interface into kernel networking data structures
*/
static void
tlp_ap_attach(struct device *parent, struct device *self, void *aux)
{
struct tulip_ap_softc *psc = (void *) self;
struct tulip_softc *sc = &psc->sc_tulip;
struct apbus_attach_args *apa = aux;
uint8_t enaddr[ETHER_ADDR_LEN];
u_int intrmask;
int i;
printf(" slot%d addr 0x%lx", apa->apa_slotno, apa->apa_hwbase);
/* PCI configuration register */
psc->sc_cfst = 0;
psc->sc_cfsh = apa->apa_hwbase + TLP_AP_CFG;
sc->sc_devno = apa->apa_slotno;
sc->sc_rev = bus_space_read_4(psc->sc_cfst, psc->sc_cfsh,
TLP_AP_CFG_CFRV);
switch (bus_space_read_4(psc->sc_cfst, psc->sc_cfsh, TLP_AP_CFG_CFID)) {
case 0x00091011:
if (sc->sc_rev >= 0x20)
sc->sc_chip = TULIP_CHIP_21140A;
else
sc->sc_chip = TULIP_CHIP_21140;
break;
default:
printf(": unable to handle your board\n");
return;
}
printf(": %s Ethernet, pass %d.%d\n",
tlp_chip_names[sc->sc_chip],
(sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf);
/* CSR */
sc->sc_st = 0;
sc->sc_sh = apa->apa_hwbase + TLP_AP_CSR;
sc->sc_dmat = apbus_dmatag_init(apa);
if (sc->sc_dmat == NULL) {
printf("%s: cannot allocate memory\n", sc->sc_dev.dv_xname);
return;
}
/*
* Initialize bus specific parameters.
*/
if (mips_sdcache_line_size > 0)
sc->sc_cacheline = mips_sdcache_line_size / 4;
else if (mips_pdcache_line_size > 0)
sc->sc_cacheline = mips_pdcache_line_size / 4;
else
sc->sc_cacheline = 4;
sc->sc_maxburst = sc->sc_cacheline; /* XXX */
sc->sc_regshift = 3;
sc->sc_flags |= TULIPF_DBO | TULIPF_BLE; /* Big Endian BUS */
sc->sc_flags |= TULIPF_ENABLED; /* No Power Mgmt */
/*
* Reset hardware.
*/
bus_space_write_4(0, apa->apa_hwbase + TLP_AP_RST, 0, 1);
delay(100);
/*
* Initialize PCI configuration register
*/
bus_space_write_4(psc->sc_cfst, psc->sc_cfsh,
TLP_AP_CFG_CFCS, 0x00000005); /* Master, IO */
bus_space_write_4(psc->sc_cfst, psc->sc_cfsh,
TLP_AP_CFG_CFLT, 0x00000100);
bus_space_write_4(psc->sc_cfst, psc->sc_cfsh,
TLP_AP_CFG_CBIO, MIPS_KSEG1_TO_PHYS(sc->sc_sh));
bus_space_write_4(psc->sc_cfst, psc->sc_cfsh,
TLP_AP_CFG_CFIT, 0x00000101);
/*
* Initialize general purpose port register.
*/
TULIP_WRITE(sc, CSR_GPP, GPP_GPC | 0xc0); /* read */
TULIP_WRITE(sc, CSR_GPP, 0x40); /* dipsw port on */
i = TULIP_READ(sc, CSR_GPP) & GPP_MD; /* dipsw contents */
TULIP_WRITE(sc, CSR_GPP, 0xc0); /* dipsw port off */
TULIP_WRITE(sc, CSR_GPP, GPP_GPC | 0xcf); /* read write */
if (sc->sc_maxburst == 16) {
TULIP_WRITE(sc, CSR_GPP, 0x8f); /* 16word burst */
TULIP_WRITE(sc, CSR_GPP, 0xcf);
} else {
TULIP_WRITE(sc, CSR_GPP, 0x8e); /* 8word burst */
TULIP_WRITE(sc, CSR_GPP, 0xce);
}
TULIP_WRITE(sc, CSR_GPP, GPP_GPC | 0xcf); /* read write */
TULIP_WRITE(sc, CSR_GPP, 0xc3); /* mask abort/DMA err */
TULIP_WRITE(sc, CSR_GPP, 0xcf); /* mask abort/DMA err */
if (tlp_read_srom(sc) == 0) {
printf("%s: srom read failed\n", sc->sc_dev.dv_xname);
free(sc->sc_dmat, M_DEVBUF);
return;
}
for (i = 0; i < ETHER_ADDR_LEN; i++)
enaddr[i] = sc->sc_srom[0x11 + i * 2];
sc->sc_mediasw = &tlp_ap_mediasw;
/*
* Finish off the attach.
*/
tlp_attach(sc, enaddr);
intrmask = SLOTTOMASK(apa->apa_slotno);
apbus_intr_establish(0, /* interrupt level (0 or 1) */
intrmask,
0, /* priority */
tlp_intr, sc, apa->apa_name, apa->apa_ctlnum);
}
static void
tlp_ap_preinit(struct tulip_softc *sc)
{
sc->sc_opmode |= OPMODE_MBO | OPMODE_SCR | OPMODE_PCS | OPMODE_HBD |
OPMODE_PS;
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
}
static void
tlp_ap_tmsw_init(struct tulip_softc *sc)
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
sc->sc_preinit = tlp_ap_preinit;
sc->sc_mii.mii_ifp = ifp;
sc->sc_mii.mii_readreg = NULL;
sc->sc_mii.mii_writereg = NULL;
sc->sc_mii.mii_statchg = sc->sc_statchg;
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_100_TX, 0, NULL);
ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_100_TX|IFM_FDX, 0,
NULL);
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_100_TX);
}
static void
tlp_ap_getmedia(struct tulip_softc *sc, struct ifmediareq *ifmr)
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
ifmr->ifm_status = IFM_AVALID;
if (ifp->if_flags & IFF_RUNNING)
ifmr->ifm_status |= IFM_ACTIVE;
ifmr->ifm_active = sc->sc_mii.mii_media_active;
}
static int
tlp_ap_setmedia(struct tulip_softc *sc)
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
sc->sc_mii.mii_media_active = sc->sc_mii.mii_media.ifm_cur->ifm_media;
if (ifp->if_flags & IFF_UP)
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
if (sc->sc_mii.mii_media_active & IFM_FDX)
sc->sc_opmode |= OPMODE_FD;
else
sc->sc_opmode &= ~OPMODE_FD;
if (ifp->if_flags & IFF_UP)
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
return 0;
}