1/* $NetBSD: uba_cmi.c,v 1.16 2017/05/22 17:15:45 ragge 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 * 47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * SUCH DAMAGE. 58 * 59 * @(#)uba.c 7.10 (Berkeley) 12/16/90 60 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91 61 */ 62 63#include <sys/cdefs.h> 64__KERNEL_RCSID(0, "$NetBSD: uba_cmi.c,v 1.16 2017/05/22 17:15:45 ragge Exp $"); 65 66#define _VAX_BUS_DMA_PRIVATE 67 68#include <sys/param.h> 69#include <sys/systm.h> 70#include <sys/cpu.h> 71#include <sys/device.h> 72#include <sys/bus.h> 73 74#include <machine/nexus.h> 75#include <machine/sgmap.h> 76 77#include <dev/qbus/ubavar.h> 78 79#include <vax/uba/uba_common.h> 80 81#include "locators.h" 82 83/* Some CMI-specific defines */ 84#define UBASIZE ((UBAPAGES + UBAIOPAGES) * VAX_NBPG) 85#define UMEM750(i) (0xfc0000 - (i) * UBASIZE) 86#define UIOPAGE(x) (UMEM750(x) + (UBAPAGES * VAX_NBPG)) 87 88/* 89 * The DW780 and DW750 are quite similar to their function from 90 * a programmers point of view. Differencies are number of BDP's 91 * and bus status/command registers, the latter are (partly) IPR's 92 * on 750. 93 */ 94static int dw750_match(device_t, cfdata_t, void *); 95static void dw750_attach(device_t, device_t, void *); 96static void dw750_init(struct uba_softc *); 97#ifdef notyet 98static void dw750_purge(struct uba_softc *, int); 99#endif 100 101CFATTACH_DECL_NEW(uba_cmi, sizeof(struct uba_vsoftc), 102 dw750_match, dw750_attach, NULL, NULL); 103 104int 105dw750_match(device_t parent, cfdata_t cf, void *aux) 106{ 107 struct sbi_attach_args * const sa = aux; 108 109 if (cf->cf_loc[CMICF_TR] != sa->sa_nexnum && 110 cf->cf_loc[CMICF_TR] != CMICF_TR_DEFAULT) 111 return 0; 112 /* 113 * The uba type is actually only telling where the uba 114 * space is in nexus space. 115 */ 116 if ((sa->sa_type & ~3) != NEX_UBA0) 117 return 0; 118 119 return 1; 120} 121 122void 123dw750_attach(device_t parent, device_t self, void *aux) 124{ 125 struct uba_vsoftc * const sc = device_private(self); 126 struct sbi_attach_args * const sa = aux; 127 128 aprint_normal(": DW750\n"); 129 130 sc->uv_sc.uh_dev = self; 131 132 /* 133 * Fill in bus specific data. 134 */ 135 sc->uv_sc.uh_ubainit = dw750_init; 136#ifdef notyet 137 sc->uv_sc.uh_ubapurge = dw750_purge; 138#endif 139 sc->uv_sc.uh_iot = sa->sa_iot; 140 sc->uv_sc.uh_dmat = &sc->uv_dmat; 141 sc->uv_sc.uh_type = UBA_UBA; 142 sc->uv_sc.uh_nr = sa->sa_type == NEX_UBA1; 143 144 /* 145 * Fill in variables used by the sgmap system. 146 */ 147 sc->uv_size = UBAPAGES * VAX_NBPG; 148 sc->uv_uba = (void *)sa->sa_ioh; /* Map registers is in adaptor */ 149 150 uba_dma_init(sc); 151 uba_attach(&sc->uv_sc, UIOPAGE(sa->sa_type == NEX_UBA1)); 152} 153 154void 155dw750_init(struct uba_softc *sc) 156{ 157 mtpr(0, PR_IUR); 158 DELAY(500000); 159} 160 161#ifdef notyet 162void 163dw750_purge(struct uba_softc sc, int bdp) 164{ 165 sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE; 166} 167#endif 168