uba_cmi.c revision 1.12
1/* $NetBSD: uba_cmi.c,v 1.12 2003/08/07 16:30:14 agc Exp $ */ 2/* 3 * Copyright (c) 1982, 1986 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)uba.c 7.10 (Berkeley) 12/16/90 31 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91 32 */ 33 34/* 35 * Copyright (c) 1996 Jonathan Stone. 36 * Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by the University of 49 * California, Berkeley and its contributors. 50 * 4. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)uba.c 7.10 (Berkeley) 12/16/90 67 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91 68 */ 69 70#include <sys/cdefs.h> 71__KERNEL_RCSID(0, "$NetBSD: uba_cmi.c,v 1.12 2003/08/07 16:30:14 agc Exp $"); 72 73#include <sys/param.h> 74#include <sys/device.h> 75#include <sys/systm.h> 76 77#define _VAX_BUS_DMA_PRIVATE 78#include <machine/bus.h> 79#include <machine/mtpr.h> 80#include <machine/nexus.h> 81#include <machine/cpu.h> 82#include <machine/sgmap.h> 83 84#include <dev/qbus/ubavar.h> 85 86#include <vax/uba/uba_common.h> 87 88#include "locators.h" 89 90/* Some CMI-specific defines */ 91#define UBASIZE ((UBAPAGES + UBAIOPAGES) * VAX_NBPG) 92#define UMEM750(i) (0xfc0000 - (i) * UBASIZE) 93#define UIOPAGE(x) (UMEM750(x) + (UBAPAGES * VAX_NBPG)) 94 95/* 96 * The DW780 and DW750 are quite similar to their function from 97 * a programmers point of view. Differencies are number of BDP's 98 * and bus status/command registers, the latter are (partly) IPR's 99 * on 750. 100 */ 101static int dw750_match(struct device *, struct cfdata *, void *); 102static void dw750_attach(struct device *, struct device *, void *); 103static void dw750_init(struct uba_softc*); 104#ifdef notyet 105static void dw750_purge(struct uba_softc *, int); 106#endif 107 108CFATTACH_DECL(uba_cmi, sizeof(struct uba_vsoftc), 109 dw750_match, dw750_attach, NULL, NULL); 110 111extern struct vax_bus_space vax_mem_bus_space; 112 113int 114dw750_match(struct device *parent, struct cfdata *cf, void *aux) 115{ 116 struct sbi_attach_args *sa = (struct sbi_attach_args *)aux; 117 118 if (cf->cf_loc[CMICF_TR] != sa->sa_nexnum && 119 cf->cf_loc[CMICF_TR] != CMICF_TR_DEFAULT) 120 return 0; 121 /* 122 * The uba type is actually only telling where the uba 123 * space is in nexus space. 124 */ 125 if ((sa->sa_type & ~3) != NEX_UBA0) 126 return 0; 127 128 return 1; 129} 130 131void 132dw750_attach(struct device *parent, struct device *self, void *aux) 133{ 134 struct uba_vsoftc *sc = (void *)self; 135 struct sbi_attach_args *sa = aux; 136 137 printf(": DW750\n"); 138 /* 139 * Fill in bus specific data. 140 */ 141 sc->uv_sc.uh_ubainit = dw750_init; 142#ifdef notyet 143 sc->uv_sc.uh_ubapurge = dw750_purge; 144#endif 145 sc->uv_sc.uh_iot = &vax_mem_bus_space; 146 sc->uv_sc.uh_dmat = &sc->uv_dmat; 147 sc->uv_sc.uh_type = UBA_UBA; 148 sc->uv_sc.uh_nr = sa->sa_type == NEX_UBA1; 149 150 /* 151 * Fill in variables used by the sgmap system. 152 */ 153 sc->uv_size = UBAPAGES * VAX_NBPG; 154 sc->uv_uba = (void *)sa->sa_ioh; /* Map registers is in adaptor */ 155 156 uba_dma_init(sc); 157 uba_attach(&sc->uv_sc, UIOPAGE(sa->sa_type == NEX_UBA1)); 158} 159 160void 161dw750_init(struct uba_softc *sc) 162{ 163 mtpr(0, PR_IUR); 164 DELAY(500000); 165} 166 167#ifdef notyet 168void 169dw750_purge(struct uba_softc sc, int bdp) 170{ 171 sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE; 172} 173#endif 174