vme_pcc.c revision 1.10
1 /* $NetBSD: vme_pcc.c,v 1.10 2000/08/13 17:00:52 scw Exp $ */ 2 3 /*- 4 * Copyright (c) 1996-2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe and Steve C. Woodford. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * VME support specific to the Type 1 VMEchip found on the 41 * MVME-147. 42 * 43 * For a manual on the MVME-147, call: 408.991.8634. (Yes, this 44 * is the Sunnyvale sales office.) 45 */ 46 47 #include <sys/param.h> 48 #include <sys/kernel.h> 49 #include <sys/systm.h> 50 #include <sys/device.h> 51 #include <sys/malloc.h> 52 #include <sys/kcore.h> 53 54 #include <machine/cpu.h> 55 #include <machine/bus.h> 56 57 #include <dev/vme/vmereg.h> 58 #include <dev/vme/vmevar.h> 59 60 #include <mvme68k/mvme68k/isr.h> 61 62 #include <mvme68k/dev/pccreg.h> 63 #include <mvme68k/dev/pccvar.h> 64 #include <mvme68k/dev/mvmebus.h> 65 #include <mvme68k/dev/vme_pccreg.h> 66 #include <mvme68k/dev/vme_pccvar.h> 67 68 69 int vme_pcc_match(struct device *, struct cfdata *, void *); 70 void vme_pcc_attach(struct device *, struct device *, void *); 71 72 struct cfattach vmepcc_ca = { 73 sizeof(struct vme_pcc_softc), vme_pcc_match, vme_pcc_attach 74 }; 75 76 extern struct cfdriver vmepcc_cd; 77 78 extern phys_ram_seg_t mem_clusters[]; 79 static int vme_pcc_attached; 80 81 void vme_pcc_intr_establish(void *, int, int, int, int (*)(void *), void *); 82 void vme_pcc_intr_disestablish(void *, int, int, int); 83 84 85 static struct mvmebus_range vme_pcc_masters[] = { 86 {VME_AM_MBO | VME_AM_A24 | VME_AM_DATA | VME_AM_SUPER, 87 VME_D32 | VME_D16, 88 VME1_A24D32_LOC_START, 89 VME1_A24_MASK, 90 VME1_A24D32_START, 91 VME1_A24D32_END}, 92 93 {VME_AM_MBO | VME_AM_A32 | VME_AM_DATA | VME_AM_SUPER, 94 VME_D32 | VME_D16, 95 VME1_A32D32_LOC_START, 96 VME1_A32_MASK, 97 VME1_A32D32_START, 98 VME1_A32D32_END}, 99 100 {VME_AM_MBO | VME_AM_A24 | VME_AM_DATA | VME_AM_SUPER, 101 VME_D16, 102 VME1_A24D16_LOC_START, 103 VME1_A24_MASK, 104 VME1_A24D16_START, 105 VME1_A24D16_END}, 106 107 {VME_AM_MBO | VME_AM_A32 | VME_AM_DATA | VME_AM_SUPER, 108 VME_D16 | VME_D8, 109 VME1_A32D16_LOC_START, 110 VME1_A32_MASK, 111 VME1_A32D16_START, 112 VME1_A32D16_END}, 113 114 {VME_AM_MBO | VME_AM_A16 | VME_AM_DATA | VME_AM_SUPER, 115 VME_D16 | VME_D8, 116 VME1_A16D16_LOC_START, 117 VME1_A16_MASK, 118 VME1_A16D16_START, 119 VME1_A16D16_END} 120 }; 121 #define VME1_NMASTERS (sizeof(vme_pcc_masters)/sizeof(struct mvmebus_range)) 122 123 124 /* ARGSUSED */ 125 int 126 vme_pcc_match(parent, cf, aux) 127 struct device *parent; 128 struct cfdata *cf; 129 void *aux; 130 { 131 struct pcc_attach_args *pa; 132 133 pa = aux; 134 135 /* Only one VME chip, please. */ 136 if (vme_pcc_attached) 137 return (0); 138 139 if (strcmp(pa->pa_name, vmepcc_cd.cd_name)) 140 return (0); 141 142 return (1); 143 } 144 145 void 146 vme_pcc_attach(parent, self, aux) 147 struct device *parent; 148 struct device *self; 149 void *aux; 150 { 151 struct pcc_attach_args *pa; 152 struct vme_pcc_softc *sc; 153 u_int8_t reg; 154 155 sc = (struct vme_pcc_softc *) self; 156 pa = aux; 157 158 sc->sc_bust = pa->pa_bust; 159 160 /* Map the VMEchip's registers */ 161 bus_space_map(sc->sc_bust, pa->pa_offset, VME1REG_SIZE, 0, 162 &sc->sc_bush); 163 164 /* Initialize the chip. */ 165 reg = vme1_reg_read(sc, VME1REG_SCON) & ~VME1_SCON_SYSFAIL; 166 vme1_reg_write(sc, VME1REG_SCON, reg); 167 168 printf(": Type 1 VMEchip, scon jumper %s\n", 169 (reg & VME1_SCON_SWITCH) ? "enabled" : "disabled"); 170 171 /* 172 * Adjust the start address of the first range in vme_pcc_masters[] 173 * according to how much onboard memory exists. Disable the first 174 * range if onboard memory >= 16Mb, and adjust the start of the 175 * second range (A32D32). 176 */ 177 vme_pcc_masters[0].vr_vmestart = (vme_addr_t) mem_clusters[0].size; 178 if (mem_clusters[0].size >= 0x01000000) { 179 vme_pcc_masters[0].vr_am = MVMEBUS_AM_DISABLED; 180 vme_pcc_masters[1].vr_vmestart += 181 (vme_addr_t) (mem_clusters[0].size - 0x01000000); 182 } 183 184 vme_pcc_attached = 1; 185 186 /* Attach to the mvme68k common VMEbus front-end */ 187 sc->sc_mvmebus.sc_dmat = pa->pa_dmat; 188 sc->sc_mvmebus.sc_chip = sc; 189 sc->sc_mvmebus.sc_nmasters = VME1_NMASTERS; 190 sc->sc_mvmebus.sc_masters = &vme_pcc_masters[0]; 191 sc->sc_mvmebus.sc_nslaves = 0; 192 sc->sc_mvmebus.sc_slaves = NULL; 193 sc->sc_mvmebus.sc_intr_establish = vme_pcc_intr_establish; 194 sc->sc_mvmebus.sc_intr_disestablish = vme_pcc_intr_disestablish; 195 196 mvmebus_attach(&sc->sc_mvmebus); 197 } 198 199 void 200 vme_pcc_intr_establish(csc, level, vector, first, func, arg) 201 void *csc; 202 int level, vector, first; 203 int (*func)(void *); 204 void *arg; 205 { 206 struct vme_pcc_softc *sc = csc; 207 208 isrlink_vectored(func, arg, level, vector); 209 210 if (first) { 211 /* 212 * There had better not be another VMEbus master responding 213 * to this interrupt level... 214 */ 215 vme1_reg_write(sc, VME1REG_IRQEN, 216 vme1_reg_read(sc, VME1REG_IRQEN) | VME1_IRQ_VME(level)); 217 } 218 } 219 220 void 221 vme_pcc_intr_disestablish(csc, level, vector, last) 222 void *csc; 223 int level, vector, last; 224 { 225 struct vme_pcc_softc *sc = csc; 226 227 isrunlink_vectored(vector); 228 229 if (last) { 230 vme1_reg_write(sc, VME1REG_IRQEN, 231 vme1_reg_read(sc, VME1REG_IRQEN) & ~VME1_IRQ_VME(level)); 232 } 233 } 234
Indexes created Mon Oct 20 16:09:52 GMT 2025