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/* $OpenBSD: uba_cmi.c,v 1.3 2003/06/02 23:27:58 millert Exp $ */
/* $NetBSD: uba_cmi.c,v 1.2 1999/08/14 11:31:48 ragge Exp $ */
/*
* Copyright (c) 1996 Jonathan Stone.
* Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden.
* 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
*/
#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 <arch/vax/qbus/ubavar.h>
#include <arch/vax/uba/uba_common.h>
/* Some CMI-specific defines */
#define UBASIZE ((UBAPAGES + UBAIOPAGES) * VAX_NBPG)
#define UMEM750(i) (0xfc0000 - (i) * UBASIZE)
#define UIOPAGE(x) (UMEM750(x) + (UBAPAGES * VAX_NBPG))
/*
* The DW780 and DW750 are quite similar to their function from
* a programmers point of view. Differencies are number of BDP's
* and bus status/command registers, the latter are (partly) IPR's
* on 750.
*/
static int dw750_match(struct device *, struct cfdata *, void *);
static void dw750_attach(struct device *, struct device *, void *);
static void dw750_init(struct uba_softc*);
#ifdef notyet
static void dw750_purge(struct uba_softc *, int);
#endif
struct cfattach uba_cmi_ca = {
sizeof(struct uba_vsoftc), dw750_match, dw750_attach
};
extern struct vax_bus_space vax_mem_bus_space;
int
dw750_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct sbi_attach_args *sa = (struct sbi_attach_args *)aux;
if ((cf->cf_loc[0] != sa->nexnum) && (cf->cf_loc[0] > -1 ))
return 0;
/*
* The uba type is actually only telling where the uba
* space is in nexus space.
*/
if ((sa->type & ~3) != NEX_UBA0)
return 0;
return 1;
}
void
dw750_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct uba_vsoftc *sc = (void *)self;
struct sbi_attach_args *sa = aux;
struct uba_regs *uh_uba = (void *)sa->nexaddr;
int ubaddr = sa->nexinfo & 1;
printf(": DW750\n");
/*
* Fill in bus specific data.
*/
sc->uv_sc.uh_ubainit = dw750_init;
#ifdef notyet
sc->uv_sc.uh_ubapurge = dw750_purge;
#endif
sc->uv_sc.uh_iot = &vax_mem_bus_space;
sc->uv_sc.uh_dmat = &sc->uv_dmat;
/*
* Fill in variables used by the sgmap system.
*/
sc->uv_size = UBASIZE; /* Size in bytes of Qbus space */
sc->uv_addr = (paddr_t)uh_uba->uba_map; /* Map regs physical address */
uba_dma_init(sc);
uba_attach(&sc->uv_sc, UIOPAGE(ubaddr));
}
void
dw750_init(sc)
struct uba_softc *sc;
{
mtpr(0, PR_IUR);
DELAY(500000);
}
#ifdef notyet
void
dw750_purge(sc, bdp)
struct uba_softc *sc;
int bdp;
{
sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE;
}
#endif
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