vme_pcc.c revision 1.19
1 /* $NetBSD: vme_pcc.c,v 1.19 2004/02/13 11:36:15 wiz 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/cdefs.h> 48 __KERNEL_RCSID(0, "$NetBSD: vme_pcc.c,v 1.19 2004/02/13 11:36:15 wiz Exp $"); 49 50 #include <sys/param.h> 51 #include <sys/kernel.h> 52 #include <sys/systm.h> 53 #include <sys/device.h> 54 #include <sys/malloc.h> 55 #include <sys/kcore.h> 56 57 #include <machine/cpu.h> 58 #include <machine/bus.h> 59 60 #include <dev/vme/vmereg.h> 61 #include <dev/vme/vmevar.h> 62 63 #include <mvme68k/dev/pccreg.h> 64 #include <mvme68k/dev/pccvar.h> 65 66 #include <dev/mvme/mvmebus.h> 67 #include <mvme68k/dev/vme_pccreg.h> 68 #include <mvme68k/dev/vme_pccvar.h> 69 70 71 int vme_pcc_match(struct device *, struct cfdata *, void *); 72 void vme_pcc_attach(struct device *, struct device *, void *); 73 74 CFATTACH_DECL(vmepcc, sizeof(struct vme_pcc_softc), 75 vme_pcc_match, vme_pcc_attach, NULL, NULL); 76 77 extern struct cfdriver vmepcc_cd; 78 79 extern phys_ram_seg_t mem_clusters[]; 80 static int vme_pcc_attached; 81 82 void vme_pcc_intr_establish(void *, int, int, int, int, 83 int (*)(void *), void *, struct evcnt *); 84 void vme_pcc_intr_disestablish(void *, int, int, int, struct evcnt *); 85 86 87 static struct mvmebus_range vme_pcc_masters[] = { 88 {VME_AM_A24 | 89 MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG | 90 MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER, 91 VME_D32 | VME_D16 | VME_D8, 92 VME1_A24D32_LOC_START, 93 VME1_A24_MASK, 94 VME1_A24D32_START, 95 VME1_A24D32_END}, 96 97 {VME_AM_A32 | 98 MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG | 99 MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER, 100 VME_D32 | VME_D16 | VME_D8, 101 VME1_A32D32_LOC_START, 102 VME1_A32_MASK, 103 VME1_A32D32_START, 104 VME1_A32D32_END}, 105 106 {VME_AM_A24 | 107 MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG | 108 MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER, 109 VME_D16 | VME_D8, 110 VME1_A24D16_LOC_START, 111 VME1_A24_MASK, 112 VME1_A24D16_START, 113 VME1_A24D16_END}, 114 115 {VME_AM_A32 | 116 MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG | 117 MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER, 118 VME_D16 | VME_D8, 119 VME1_A32D16_LOC_START, 120 VME1_A32_MASK, 121 VME1_A32D16_START, 122 VME1_A32D16_END}, 123 124 {VME_AM_A16 | 125 MVMEBUS_AM_CAP_DATA | 126 MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER, 127 VME_D16 | VME_D8, 128 VME1_A16D16_LOC_START, 129 VME1_A16_MASK, 130 VME1_A16D16_START, 131 VME1_A16D16_END} 132 }; 133 #define VME1_NMASTERS (sizeof(vme_pcc_masters)/sizeof(struct mvmebus_range)) 134 135 136 /* ARGSUSED */ 137 int 138 vme_pcc_match(parent, cf, aux) 139 struct device *parent; 140 struct cfdata *cf; 141 void *aux; 142 { 143 struct pcc_attach_args *pa; 144 145 pa = aux; 146 147 /* Only one VME chip, please. */ 148 if (vme_pcc_attached) 149 return (0); 150 151 if (strcmp(pa->pa_name, vmepcc_cd.cd_name)) 152 return (0); 153 154 return (1); 155 } 156 157 void 158 vme_pcc_attach(parent, self, aux) 159 struct device *parent; 160 struct device *self; 161 void *aux; 162 { 163 struct pcc_attach_args *pa; 164 struct vme_pcc_softc *sc; 165 vme_am_t am; 166 u_int8_t reg; 167 168 sc = (struct vme_pcc_softc *) self; 169 pa = aux; 170 171 /* Map the VMEchip's registers */ 172 bus_space_map(pa->pa_bust, pa->pa_offset, VME1REG_SIZE, 0, 173 &sc->sc_bush); 174 175 /* Initialise stuff used by the mvme68k common VMEbus front-end */ 176 sc->sc_mvmebus.sc_bust = pa->pa_bust; 177 sc->sc_mvmebus.sc_dmat = pa->pa_dmat; 178 sc->sc_mvmebus.sc_chip = sc; 179 sc->sc_mvmebus.sc_nmasters = VME1_NMASTERS; 180 sc->sc_mvmebus.sc_masters = &vme_pcc_masters[0]; 181 sc->sc_mvmebus.sc_nslaves = VME1_NSLAVES; 182 sc->sc_mvmebus.sc_slaves = &sc->sc_slave[0]; 183 sc->sc_mvmebus.sc_intr_establish = vme_pcc_intr_establish; 184 sc->sc_mvmebus.sc_intr_disestablish = vme_pcc_intr_disestablish; 185 186 /* Initialize the chip. */ 187 reg = vme1_reg_read(sc, VME1REG_SCON) & ~VME1_SCON_SYSFAIL; 188 vme1_reg_write(sc, VME1REG_SCON, reg); 189 190 printf(": Type 1 VMEchip, scon jumper %s\n", 191 (reg & VME1_SCON_SWITCH) ? "enabled" : "disabled"); 192 193 /* 194 * Adjust the start address of the first range in vme_pcc_masters[] 195 * according to how much onboard memory exists. Disable the first 196 * range if onboard memory >= 16Mb, and adjust the start of the 197 * second range (A32D32). 198 */ 199 vme_pcc_masters[0].vr_vmestart = (vme_addr_t) mem_clusters[0].size; 200 if (mem_clusters[0].size >= 0x01000000) { 201 vme_pcc_masters[0].vr_am = MVMEBUS_AM_DISABLED; 202 vme_pcc_masters[1].vr_vmestart += 203 (vme_addr_t) (mem_clusters[0].size - 0x01000000); 204 } 205 206 am = 0; 207 reg = vme1_reg_read(sc, VME1REG_SLADDRMOD); 208 if ((reg & VME1_SLMOD_DATA) != 0) 209 am |= MVMEBUS_AM_CAP_DATA; 210 if ((reg & VME1_SLMOD_PRGRM) != 0) 211 am |= MVMEBUS_AM_CAP_PROG; 212 if ((reg & VME1_SLMOD_SUPER) != 0) 213 am |= MVMEBUS_AM_CAP_SUPER; 214 if ((reg & VME1_SLMOD_USER) != 0) 215 am |= MVMEBUS_AM_CAP_USER; 216 if ((reg & VME1_SLMOD_BLOCK) != 0) 217 am |= MVMEBUS_AM_CAP_BLK; 218 219 #ifdef notyet 220 if ((reg & VME1_SLMOD_SHORT) != 0) { 221 sc->sc_slave[VME1_SLAVE_A16].vr_am = am | VME_AM_A16; 222 sc->sc_slave[VME1_SLAVE_A16].vr_mask = 0xffffu; 223 } else 224 #endif 225 sc->sc_slave[VME1_SLAVE_A16].vr_am = MVMEBUS_AM_DISABLED; 226 227 if (pcc_slave_base_addr < 0x01000000u && (reg & VME1_SLMOD_STND) != 0) { 228 sc->sc_slave[VME1_SLAVE_A24].vr_am = am | VME_AM_A24; 229 sc->sc_slave[VME1_SLAVE_A24].vr_datasize = VME_D32 | 230 VME_D16 | VME_D8; 231 sc->sc_slave[VME1_SLAVE_A24].vr_mask = 0xffffffu; 232 sc->sc_slave[VME1_SLAVE_A24].vr_locstart = 0; 233 sc->sc_slave[VME1_SLAVE_A24].vr_vmestart = pcc_slave_base_addr; 234 sc->sc_slave[VME1_SLAVE_A24].vr_vmeend = (pcc_slave_base_addr + 235 mem_clusters[0].size - 1) & 0x00ffffffu; 236 } else 237 sc->sc_slave[VME1_SLAVE_A24].vr_am = MVMEBUS_AM_DISABLED; 238 239 if ((reg & VME1_SLMOD_EXTED) != 0) { 240 sc->sc_slave[VME1_SLAVE_A32].vr_am = am | VME_AM_A32; 241 sc->sc_slave[VME1_SLAVE_A32].vr_datasize = VME_D32 | 242 VME_D16 | VME_D8; 243 sc->sc_slave[VME1_SLAVE_A32].vr_mask = 0xffffffffu; 244 sc->sc_slave[VME1_SLAVE_A32].vr_locstart = 0; 245 sc->sc_slave[VME1_SLAVE_A32].vr_vmestart = pcc_slave_base_addr; 246 sc->sc_slave[VME1_SLAVE_A32].vr_vmeend = 247 pcc_slave_base_addr + mem_clusters[0].size - 1; 248 } else 249 sc->sc_slave[VME1_SLAVE_A32].vr_am = MVMEBUS_AM_DISABLED; 250 251 vme_pcc_attached = 1; 252 253 mvmebus_attach(&sc->sc_mvmebus); 254 } 255 256 void 257 vme_pcc_intr_establish(csc, prior, level, vector, first, func, arg, evcnt) 258 void *csc; 259 int prior, level, vector, first; 260 int (*func)(void *); 261 void *arg; 262 struct evcnt *evcnt; 263 { 264 struct vme_pcc_softc *sc = csc; 265 266 if (prior != level) 267 panic("vme_pcc_intr_establish: CPU priority != VMEbus irq level"); 268 269 isrlink_vectored(func, arg, prior, vector, evcnt); 270 271 if (first) { 272 evcnt_attach_dynamic(evcnt, EVCNT_TYPE_INTR, 273 isrlink_evcnt(prior), sc->sc_mvmebus.sc_dev.dv_xname, 274 mvmebus_irq_name[level]); 275 276 /* 277 * There had better not be another VMEbus master responding 278 * to this interrupt level... 279 */ 280 vme1_reg_write(sc, VME1REG_IRQEN, 281 vme1_reg_read(sc, VME1REG_IRQEN) | VME1_IRQ_VME(level)); 282 } 283 } 284 285 void 286 vme_pcc_intr_disestablish(csc, level, vector, last, evcnt) 287 void *csc; 288 int level, vector, last; 289 struct evcnt *evcnt; 290 { 291 struct vme_pcc_softc *sc = csc; 292 293 isrunlink_vectored(vector); 294 295 if (last) { 296 vme1_reg_write(sc, VME1REG_IRQEN, 297 vme1_reg_read(sc, VME1REG_IRQEN) & ~VME1_IRQ_VME(level)); 298 evcnt_detach(evcnt); 299 } 300 } 301
Indexes created Sun Oct 19 02:09:48 GMT 2025