317 lines
8.6 KiB
C
317 lines
8.6 KiB
C
/* $NetBSD: if_ie_mvme.c,v 1.17 2010/11/13 13:52:04 uebayasi Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Steve C. Woodford.
|
|
*
|
|
* 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_ie_mvme.c,v 1.17 2010/11/13 13:52:04 uebayasi Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/device.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_dl.h>
|
|
#include <net/if_types.h>
|
|
#include <net/if_ether.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <sys/cpu.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <dev/ic/i82586reg.h>
|
|
#include <dev/ic/i82586var.h>
|
|
|
|
#include <dev/mvme/if_iereg.h>
|
|
#include <dev/mvme/pcctwovar.h>
|
|
#include <dev/mvme/pcctworeg.h>
|
|
|
|
|
|
int ie_pcctwo_match(device_t, cfdata_t, void *);
|
|
void ie_pcctwo_attach(device_t, device_t, void *);
|
|
|
|
struct ie_pcctwo_softc {
|
|
struct ie_softc ps_ie;
|
|
bus_space_tag_t ps_bust;
|
|
bus_space_handle_t ps_bush;
|
|
struct evcnt ps_evcnt;
|
|
};
|
|
|
|
CFATTACH_DECL(ie_pcctwo, sizeof(struct ie_pcctwo_softc),
|
|
ie_pcctwo_match, ie_pcctwo_attach, NULL, NULL);
|
|
|
|
extern struct cfdriver ie_cd;
|
|
|
|
|
|
/* Functions required by the i82586 MI driver */
|
|
static void ie_reset(struct ie_softc *, int);
|
|
static int ie_intrhook(struct ie_softc *, int);
|
|
static void ie_hwinit(struct ie_softc *);
|
|
static void ie_atten(struct ie_softc *, int);
|
|
|
|
static void ie_copyin(struct ie_softc *, void *, int, size_t);
|
|
static void ie_copyout(struct ie_softc *, const void *, int, size_t);
|
|
|
|
static u_int16_t ie_read_16(struct ie_softc *, int);
|
|
static void ie_write_16(struct ie_softc *, int, u_int16_t);
|
|
static void ie_write_24(struct ie_softc *, int, int);
|
|
|
|
/*
|
|
* i82596 Support Routines for MVME1[67][27] and MVME187 Boards
|
|
*/
|
|
static void
|
|
ie_reset(struct ie_softc *sc, int why)
|
|
{
|
|
struct ie_pcctwo_softc *ps;
|
|
u_int32_t scp_addr;
|
|
|
|
ps = (struct ie_pcctwo_softc *) sc;
|
|
|
|
switch (why) {
|
|
case CHIP_PROBE:
|
|
case CARD_RESET:
|
|
bus_space_write_2(ps->ps_bust, ps->ps_bush, IE_MPUREG_UPPER,
|
|
IE_PORT_RESET);
|
|
bus_space_write_2(ps->ps_bust, ps->ps_bush, IE_MPUREG_LOWER, 0);
|
|
delay(1000);
|
|
|
|
/*
|
|
* Set the BUSY and BUS_USE bytes here, since the MI code
|
|
* incorrectly assumes it can use byte addressing to set it.
|
|
* (due to wrong-endianess of the chip)
|
|
*/
|
|
ie_write_16(sc, IE_ISCP_BUSY(sc->iscp), 1);
|
|
ie_write_16(sc, IE_SCP_BUS_USE(sc->scp), IE_BUS_USE);
|
|
|
|
scp_addr = sc->scp + (u_int) sc->sc_iobase;
|
|
scp_addr |= IE_PORT_ALT_SCP;
|
|
|
|
bus_space_write_2(ps->ps_bust, ps->ps_bush, IE_MPUREG_UPPER,
|
|
scp_addr & 0xffff);
|
|
bus_space_write_2(ps->ps_bust, ps->ps_bush, IE_MPUREG_LOWER,
|
|
(scp_addr >> 16) & 0xffff);
|
|
delay(1000);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
ie_intrhook(struct ie_softc *sc, int when)
|
|
{
|
|
struct ie_pcctwo_softc *ps;
|
|
u_int8_t reg;
|
|
|
|
ps = (struct ie_pcctwo_softc *) sc;
|
|
|
|
if (when == INTR_EXIT) {
|
|
reg = pcc2_reg_read(sys_pcctwo, PCC2REG_ETH_ICSR);
|
|
reg |= PCCTWO_ICR_ICLR;
|
|
pcc2_reg_write(sys_pcctwo, PCC2REG_ETH_ICSR, reg);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
ie_hwinit(struct ie_softc *sc)
|
|
{
|
|
u_int8_t reg;
|
|
|
|
reg = pcc2_reg_read(sys_pcctwo, PCC2REG_ETH_ICSR);
|
|
reg |= PCCTWO_ICR_IEN | PCCTWO_ICR_ICLR;
|
|
pcc2_reg_write(sys_pcctwo, PCC2REG_ETH_ICSR, reg);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
ie_atten(struct ie_softc *sc, int reason)
|
|
{
|
|
struct ie_pcctwo_softc *ps;
|
|
|
|
ps = (struct ie_pcctwo_softc *) sc;
|
|
bus_space_write_4(ps->ps_bust, ps->ps_bush, IE_MPUREG_CA, 0);
|
|
}
|
|
|
|
static void
|
|
ie_copyin(struct ie_softc *sc, void *dst, int offset, size_t size)
|
|
{
|
|
if (size == 0) /* This *can* happen! */
|
|
return;
|
|
|
|
#if 0
|
|
bus_space_read_region_1(sc->bt, sc->bh, offset, dst, size);
|
|
#else
|
|
/* A minor optimisation ;-) */
|
|
memcpy(dst, (void *) ((u_long) sc->bh + (u_long) offset), size);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
ie_copyout(struct ie_softc *sc, const void *src, int offset, size_t size)
|
|
{
|
|
if (size == 0) /* This *can* happen! */
|
|
return;
|
|
|
|
#if 0
|
|
bus_space_write_region_1(sc->bt, sc->bh, offset, src, size);
|
|
#else
|
|
/* A minor optimisation ;-) */
|
|
memcpy((void *) ((u_long) sc->bh + (u_long) offset), src, size);
|
|
#endif
|
|
}
|
|
|
|
static u_int16_t
|
|
ie_read_16(struct ie_softc *sc, int offset)
|
|
{
|
|
|
|
return (bus_space_read_2(sc->bt, sc->bh, offset));
|
|
}
|
|
|
|
static void
|
|
ie_write_16(struct ie_softc *sc, int offset, u_int16_t value)
|
|
{
|
|
|
|
bus_space_write_2(sc->bt, sc->bh, offset, value);
|
|
}
|
|
|
|
static void
|
|
ie_write_24(struct ie_softc *sc, int offset, int addr)
|
|
{
|
|
|
|
addr += (int) sc->sc_iobase;
|
|
|
|
bus_space_write_2(sc->bt, sc->bh, offset, addr & 0xffff);
|
|
bus_space_write_2(sc->bt, sc->bh, offset + 2, (addr >> 16) & 0x00ff);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
int
|
|
ie_pcctwo_match(device_t parent, cfdata_t cf, void *args)
|
|
{
|
|
struct pcctwo_attach_args *pa;
|
|
|
|
pa = args;
|
|
|
|
if (strcmp(pa->pa_name, ie_cd.cd_name))
|
|
return (0);
|
|
|
|
pa->pa_ipl = cf->pcctwocf_ipl;
|
|
|
|
return (1);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
ie_pcctwo_attach(device_t parent, device_t self, void *args)
|
|
{
|
|
struct pcctwo_attach_args *pa;
|
|
struct ie_pcctwo_softc *ps;
|
|
struct ie_softc *sc;
|
|
bus_dma_segment_t seg;
|
|
int rseg;
|
|
|
|
pa = (struct pcctwo_attach_args *) args;
|
|
ps = device_private(self);
|
|
sc = device_private(self);
|
|
|
|
/* Map the MPU controller registers in PCCTWO space */
|
|
ps->ps_bust = pa->pa_bust;
|
|
bus_space_map(pa->pa_bust, pa->pa_offset, IE_MPUREG_SIZE,
|
|
0, &ps->ps_bush);
|
|
|
|
/* Get contiguous DMA-able memory for the IE chip */
|
|
if (bus_dmamem_alloc(pa->pa_dmat, ether_data_buff_size, PAGE_SIZE, 0,
|
|
&seg, 1, &rseg,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ONBOARD_RAM | BUS_DMA_24BIT) != 0) {
|
|
aprint_error_dev(self, "Failed to allocate ether buffer\n");
|
|
return;
|
|
}
|
|
if (bus_dmamem_map(pa->pa_dmat, &seg, rseg, ether_data_buff_size,
|
|
(void **) & sc->sc_maddr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) {
|
|
aprint_error_dev(self, "Failed to map ether buffer\n");
|
|
bus_dmamem_free(pa->pa_dmat, &seg, rseg);
|
|
return;
|
|
}
|
|
sc->bt = pa->pa_bust;
|
|
sc->bh = (bus_space_handle_t) sc->sc_maddr; /* XXXSCW Better way? */
|
|
sc->sc_iobase = (void *) seg.ds_addr;
|
|
sc->sc_msize = ether_data_buff_size;
|
|
memset(sc->sc_maddr, 0, ether_data_buff_size);
|
|
|
|
sc->hwreset = ie_reset;
|
|
sc->hwinit = ie_hwinit;
|
|
sc->chan_attn = ie_atten;
|
|
sc->intrhook = ie_intrhook;
|
|
sc->memcopyin = ie_copyin;
|
|
sc->memcopyout = ie_copyout;
|
|
sc->ie_bus_barrier = NULL;
|
|
sc->ie_bus_read16 = ie_read_16;
|
|
sc->ie_bus_write16 = ie_write_16;
|
|
sc->ie_bus_write24 = ie_write_24;
|
|
sc->sc_mediachange = NULL;
|
|
sc->sc_mediastatus = NULL;
|
|
|
|
sc->scp = 0;
|
|
sc->iscp = sc->scp + ((IE_SCP_SZ + 15) & ~15);
|
|
sc->scb = sc->iscp + IE_ISCP_SZ;
|
|
sc->buf_area = sc->scb + IE_SCB_SZ;
|
|
sc->buf_area_sz = sc->sc_msize - (sc->buf_area - sc->scp);
|
|
|
|
/*
|
|
* BUS_USE -> Interrupt Active High (edge-triggered),
|
|
* Lock function enabled,
|
|
* Internal bus throttle timer triggering,
|
|
* 82586 operating mode.
|
|
*/
|
|
ie_write_16(sc, IE_SCP_BUS_USE(sc->scp), IE_BUS_USE);
|
|
ie_write_24(sc, IE_SCP_ISCP(sc->scp), sc->iscp);
|
|
ie_write_16(sc, IE_ISCP_SCB(sc->iscp), sc->scb);
|
|
ie_write_24(sc, IE_ISCP_BASE(sc->iscp), sc->scp);
|
|
|
|
/* This has the side-effect of resetting the chip */
|
|
i82586_proberam(sc);
|
|
|
|
/* Attach the MI back-end */
|
|
i82586_attach(sc, "onboard", mvme_ea, NULL, 0, 0);
|
|
|
|
/* Register the event counter */
|
|
evcnt_attach_dynamic(&ps->ps_evcnt, EVCNT_TYPE_INTR,
|
|
pcctwointr_evcnt(pa->pa_ipl), "ether", device_xname(&sc->sc_dev));
|
|
|
|
/* Finally, hook the hardware interrupt */
|
|
pcctwointr_establish(PCCTWOV_LANC_IRQ, i82586_intr, pa->pa_ipl, sc,
|
|
&ps->ps_evcnt);
|
|
}
|