181 lines
6.0 KiB
C
181 lines
6.0 KiB
C
/* $NetBSD: uba_ibus.c,v 1.9 2003/08/07 16:30:15 agc Exp $ */
|
|
/*
|
|
* Copyright (c) 1982, 1986 The Regents of the University of California.
|
|
* 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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)uba.c 7.10 (Berkeley) 12/16/90
|
|
* @(#)autoconf.c 7.20 (Berkeley) 5/9/91
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1996 Jonathan Stone.
|
|
* Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden.
|
|
*
|
|
* 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 University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)uba.c 7.10 (Berkeley) 12/16/90
|
|
* @(#)autoconf.c 7.20 (Berkeley) 5/9/91
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: uba_ibus.c,v 1.9 2003/08/07 16:30:15 agc Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/device.h>
|
|
#include <sys/systm.h>
|
|
|
|
#define _VAX_BUS_DMA_PRIVATE
|
|
#include <machine/bus.h>
|
|
#include <machine/mtpr.h>
|
|
#include <machine/nexus.h>
|
|
#include <machine/cpu.h>
|
|
#include <machine/sgmap.h>
|
|
#include <machine/sid.h>
|
|
|
|
#include <dev/qbus/ubavar.h>
|
|
|
|
#include <arch/vax/uba/uba_common.h>
|
|
|
|
#include "opt_cputype.h"
|
|
|
|
/* Some Qbus-specific defines */
|
|
#define QBASIZE (8192 * VAX_NBPG)
|
|
#define QBAMAP 0x20088000
|
|
#define QIOPAGE 0x20000000
|
|
|
|
/*
|
|
* The Q22 bus is the main IO bus on MicroVAX II/MicroVAX III systems.
|
|
* It has an address space of 4MB (22 address bits), therefore the name,
|
|
* and is hardware compatible with all 16 and 18 bits Q-bus devices.
|
|
*/
|
|
static int qba_match __P((struct device *, struct cfdata *, void *));
|
|
static void qba_attach __P((struct device *, struct device *, void *));
|
|
static void qba_beforescan __P((struct uba_softc*));
|
|
static void qba_init __P((struct uba_softc*));
|
|
|
|
CFATTACH_DECL(uba_ibus, sizeof(struct uba_vsoftc),
|
|
qba_match, qba_attach, NULL, NULL);
|
|
|
|
extern struct vax_bus_space vax_mem_bus_space;
|
|
extern struct vax_bus_dma_tag vax_bus_dma_tag;
|
|
|
|
int
|
|
qba_match(parent, vcf, aux)
|
|
struct device *parent;
|
|
struct cfdata *vcf;
|
|
void *aux;
|
|
{
|
|
struct bp_conf *bp = aux;
|
|
|
|
if (strcmp(bp->type, "uba"))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
qba_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct uba_vsoftc *sc = (void *)self;
|
|
|
|
printf(": Q22\n");
|
|
/*
|
|
* Fill in bus specific data.
|
|
*/
|
|
sc->uv_sc.uh_beforescan = qba_beforescan;
|
|
sc->uv_sc.uh_ubainit = qba_init;
|
|
sc->uv_sc.uh_iot = &vax_mem_bus_space;
|
|
sc->uv_sc.uh_dmat = &sc->uv_dmat;
|
|
sc->uv_sc.uh_type = UBA_QBUS;
|
|
|
|
/*
|
|
* Fill in variables used by the sgmap system.
|
|
*/
|
|
sc->uv_size = QBASIZE; /* Size in bytes of Qbus space */
|
|
sc->uv_addr = QBAMAP; /* Physical address of map registers */
|
|
|
|
#if VAX610 || VAXANY
|
|
if (vax_boardtype == VAX_BTYP_610) {
|
|
sc->uv_sc.uh_dmat = &vax_bus_dma_tag;
|
|
sc->uv_sc.uh_beforescan = NULL;
|
|
sc->uv_sc.uh_type = UBA_MVI;
|
|
} else
|
|
#endif
|
|
uba_dma_init(sc);
|
|
uba_attach(&sc->uv_sc, QIOPAGE);
|
|
}
|
|
|
|
/*
|
|
* Called when the QBA is set up; to enable DMA access from
|
|
* QBA devices to main memory.
|
|
*/
|
|
void
|
|
qba_beforescan(sc)
|
|
struct uba_softc *sc;
|
|
{
|
|
#define QIPCR 0x1f40
|
|
#define Q_LMEAE 0x20
|
|
bus_space_write_2(sc->uh_tag, sc->uh_ioh, QIPCR, Q_LMEAE);
|
|
}
|
|
|
|
void
|
|
qba_init(sc)
|
|
struct uba_softc *sc;
|
|
{
|
|
mtpr(0, PR_IUR);
|
|
DELAY(500000);
|
|
qba_beforescan(sc);
|
|
}
|