uba_cmi.c revision 1.15
1/* $NetBSD: uba_cmi.c,v 1.15 2010/12/14 23:38:30 matt 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 1.15 2010/12/14 23:38:30 matt Exp $"); 72 73#define _VAX_BUS_DMA_PRIVATE 74 75#include <sys/param.h> 76#include <sys/systm.h> 77#include <sys/cpu.h> 78#include <sys/device.h> 79#include <sys/bus.h> 80 81#include <machine/nexus.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(device_t, cfdata_t, void *); 102static void dw750_attach(device_t, device_t, void *); 103static void dw750_init(struct uba_softc *); 104#ifdef notyet 105static void dw750_purge(struct uba_softc *, int); 106#endif 107 108CFATTACH_DECL_NEW(uba_cmi, sizeof(struct uba_vsoftc), 109 dw750_match, dw750_attach, NULL, NULL); 110 111int 112dw750_match(device_t parent, cfdata_t cf, void *aux) 113{ 114 struct sbi_attach_args * const sa = aux; 115 116 if (cf->cf_loc[CMICF_TR] != sa->sa_nexnum && 117 cf->cf_loc[CMICF_TR] != CMICF_TR_DEFAULT) 118 return 0; 119 /* 120 * The uba type is actually only telling where the uba 121 * space is in nexus space. 122 */ 123 if ((sa->sa_type & ~3) != NEX_UBA0) 124 return 0; 125 126 return 1; 127} 128 129void 130dw750_attach(device_t parent, device_t self, void *aux) 131{ 132 struct uba_vsoftc * const sc = device_private(self); 133 struct sbi_attach_args * const sa = aux; 134 135 aprint_normal(": DW750\n"); 136 137 sc->uv_sc.uh_dev = self; 138 139 /* 140 * Fill in bus specific data. 141 */ 142 sc->uv_sc.uh_ubainit = dw750_init; 143#ifdef notyet 144 sc->uv_sc.uh_ubapurge = dw750_purge; 145#endif 146 sc->uv_sc.uh_iot = sa->sa_iot; 147 sc->uv_sc.uh_dmat = &sc->uv_dmat; 148 sc->uv_sc.uh_type = UBA_UBA; 149 sc->uv_sc.uh_nr = sa->sa_type == NEX_UBA1; 150 151 /* 152 * Fill in variables used by the sgmap system. 153 */ 154 sc->uv_size = UBAPAGES * VAX_NBPG; 155 sc->uv_uba = (void *)sa->sa_ioh; /* Map registers is in adaptor */ 156 157 uba_dma_init(sc); 158 uba_attach(&sc->uv_sc, UIOPAGE(sa->sa_type == NEX_UBA1)); 159} 160 161void 162dw750_init(struct uba_softc *sc) 163{ 164 mtpr(0, PR_IUR); 165 DELAY(500000); 166} 167 168#ifdef notyet 169void 170dw750_purge(struct uba_softc sc, int bdp) 171{ 172 sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE; 173} 174#endif 175