147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/* $NetBSD: uba_cmi.c,v 1.1 1999/06/21 16:23:00 ragge Exp $ */
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/*
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* Copyright (c) 1996 Jonathan Stone.
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* Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden.
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* Copyright (c) 1982, 1986 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)uba.c 7.10 (Berkeley) 12/16/90
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* @(#)autoconf.c 7.20 (Berkeley) 5/9/91
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*/
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#define _VAX_BUS_DMA_PRIVATE
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#include <machine/bus.h>
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#include <machine/mtpr.h>
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#include <machine/nexus.h>
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#include <machine/cpu.h>
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#include <machine/sgmap.h>
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#include <dev/qbus/ubavar.h>
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#include <arch/vax/uba/uba_common.h>
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/* Some CMI-specific defines */
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#define UBASIZE (UBAPAGES * VAX_NBPG)
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#define UMEM750(i) (0xfc0000-(i)*0x40000)
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#define UIOPAGE(x) (UMEM750(x) + ((UBAPAGES + UBAIOPAGES) * VAX_NBPG))
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/*
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* The DW780 and DW750 are quite similar to their function from
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* a programmers point of view. Differencies are number of BDP's
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* and bus status/command registers, the latter are (partly) IPR's
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* on 750.
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*/
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static int dw750_match __P((struct device *, struct cfdata *, void *));
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static void dw750_attach __P((struct device *, struct device *, void *));
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static void dw750_init __P((struct uba_softc*));
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#ifdef notyet
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static void dw750_purge __P((struct uba_softc *, int));
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#endif
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struct cfattach uba_cmi_ca = {
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sizeof(struct uba_vsoftc), dw750_match, dw750_attach
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};
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extern struct vax_bus_space vax_mem_bus_space;
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int
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dw750_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct sbi_attach_args *sa = (struct sbi_attach_args *)aux;
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if ((cf->cf_loc[0] != sa->nexnum) && (cf->cf_loc[0] > -1 ))
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return 0;
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/*
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* The uba type is actually only telling where the uba
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* space is in nexus space.
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*/
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if ((sa->type & ~3) != NEX_UBA0)
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return 0;
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return 1;
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}
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void
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dw750_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct uba_vsoftc *sc = (void *)self;
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struct sbi_attach_args *sa = aux;
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struct uba_regs *uh_uba = (void *)sa->nexaddr;
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int ubaddr = sa->nexinfo & 1;
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printf(": DW750\n");
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/*
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* Fill in bus specific data.
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*/
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sc->uv_sc.uh_ubainit = dw750_init;
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#ifdef notyet
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sc->uv_sc.uh_ubapurge = dw750_purge;
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#endif
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sc->uv_sc.uh_iot = &vax_mem_bus_space;
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sc->uv_sc.uh_dmat = &sc->uv_dmat;
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/*
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* Fill in variables used by the sgmap system.
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*/
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sc->uv_size = UBASIZE; /* Size in bytes of Qbus space */
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sc->uv_addr = (paddr_t)uh_uba->uba_map; /* Map regs physical address */
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uba_dma_init(sc);
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uba_attach(&sc->uv_sc, UIOPAGE(ubaddr));
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}
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void
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dw750_init(sc)
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struct uba_softc *sc;
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{
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mtpr(0, PR_IUR);
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DELAY(500000);
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}
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#ifdef notyet
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void
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dw750_purge(sc, bdp)
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struct uba_softc *sc;
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int bdp;
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{
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sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE;
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}
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#endif
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