1 /* $NetBSD: uba_cmi.c,v 1.2 1999/08/14 11:31:48 ragge Exp $ */ 2 /* 3 * Copyright (c) 1996 Jonathan Stone. 4 * Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden. 5 * Copyright (c) 1982, 1986 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)uba.c 7.10 (Berkeley) 12/16/90 37 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91 38 */ 39 40 #include <sys/param.h> 41 #include <sys/device.h> 42 #include <sys/systm.h> 43 44 #define _VAX_BUS_DMA_PRIVATE 45 #include <machine/bus.h> 46 #include <machine/mtpr.h> 47 #include <machine/nexus.h> 48 #include <machine/cpu.h> 49 #include <machine/sgmap.h> 50 51 #include <dev/qbus/ubavar.h> 52 53 #include <arch/vax/uba/uba_common.h> 54 55 /* Some CMI-specific defines */ 56 #define UBASIZE ((UBAPAGES + UBAIOPAGES) * VAX_NBPG) 57 #define UMEM750(i) (0xfc0000 - (i) * UBASIZE) 58 #define UIOPAGE(x) (UMEM750(x) + (UBAPAGES * VAX_NBPG)) 59 60 /* 61 * The DW780 and DW750 are quite similar to their function from 62 * a programmers point of view. Differencies are number of BDP's 63 * and bus status/command registers, the latter are (partly) IPR's 64 * on 750. 65 */ 66 static int dw750_match __P((struct device *, struct cfdata *, void *)); 67 static void dw750_attach __P((struct device *, struct device *, void *)); 68 static void dw750_init __P((struct uba_softc*)); 69 #ifdef notyet 70 static void dw750_purge __P((struct uba_softc *, int)); 71 #endif 72 73 struct cfattach uba_cmi_ca = { 74 sizeof(struct uba_vsoftc), dw750_match, dw750_attach 75 }; 76 77 extern struct vax_bus_space vax_mem_bus_space; 78 79 int 80 dw750_match(parent, cf, aux) 81 struct device *parent; 82 struct cfdata *cf; 83 void *aux; 84 { 85 struct sbi_attach_args *sa = (struct sbi_attach_args *)aux; 86 87 if ((cf->cf_loc[0] != sa->nexnum) && (cf->cf_loc[0] > -1 )) 88 return 0; 89 /* 90 * The uba type is actually only telling where the uba 91 * space is in nexus space. 92 */ 93 if ((sa->type & ~3) != NEX_UBA0) 94 return 0; 95 96 return 1; 97 } 98 99 void 100 dw750_attach(parent, self, aux) 101 struct device *parent, *self; 102 void *aux; 103 { 104 struct uba_vsoftc *sc = (void *)self; 105 struct sbi_attach_args *sa = aux; 106 struct uba_regs *uh_uba = (void *)sa->nexaddr; 107 int ubaddr = sa->nexinfo & 1; 108 109 printf(": DW750\n"); 110 /* 111 * Fill in bus specific data. 112 */ 113 sc->uv_sc.uh_ubainit = dw750_init; 114 #ifdef notyet 115 sc->uv_sc.uh_ubapurge = dw750_purge; 116 #endif 117 sc->uv_sc.uh_iot = &vax_mem_bus_space; 118 sc->uv_sc.uh_dmat = &sc->uv_dmat; 119 120 /* 121 * Fill in variables used by the sgmap system. 122 */ 123 sc->uv_size = UBASIZE; /* Size in bytes of Qbus space */ 124 sc->uv_addr = (paddr_t)uh_uba->uba_map; /* Map regs physical address */ 125 126 uba_dma_init(sc); 127 uba_attach(&sc->uv_sc, UIOPAGE(ubaddr)); 128 } 129 130 void 131 dw750_init(sc) 132 struct uba_softc *sc; 133 { 134 mtpr(0, PR_IUR); 135 DELAY(500000); 136 } 137 138 #ifdef notyet 139 void 140 dw750_purge(sc, bdp) 141 struct uba_softc *sc; 142 int bdp; 143 { 144 sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE; 145 } 146 #endif 147