plumiobus.c revision 1.8
1 /* $NetBSD: plumiobus.c,v 1.8 2002/10/02 05:26:46 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 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 #define PLUMIOBUSDEBUG 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 #include <sys/malloc.h> 45 46 #include <machine/bus.h> 47 #include <machine/intr.h> 48 49 #include <hpcmips/tx/tx39var.h> 50 #include <hpcmips/dev/plumvar.h> 51 #include <hpcmips/dev/plumicuvar.h> 52 #include <hpcmips/dev/plumpowervar.h> 53 #include <hpcmips/dev/plumiobusreg.h> 54 #include <hpcmips/dev/plumiobusvar.h> 55 56 #include "locators.h" 57 58 #ifdef PLUMIOBUSDEBUG 59 int plumiobus_debug = 0; 60 #define DPRINTF(arg) if (plumiobus_debug) printf arg; 61 #define DPRINTFN(n, arg) if (plumiobus_debug > (n)) printf arg; 62 #else 63 #define DPRINTF(arg) 64 #define DPRINTFN(n, arg) 65 #endif 66 67 int plumiobus_match(struct device *, struct cfdata *, void *); 68 void plumiobus_attach(struct device *, struct device *, void *); 69 int plumiobus_print(void *, const char *); 70 int plumiobus_search(struct device *, struct cfdata *, void *); 71 72 struct plumisa_resource { 73 int pr_irq; 74 bus_space_tag_t pr_iot; 75 int pr_enabled; 76 }; 77 78 struct plumiobus_softc { 79 struct device sc_dev; 80 plum_chipset_tag_t sc_pc; 81 bus_space_tag_t sc_regt; 82 bus_space_handle_t sc_regh; 83 bus_space_tag_t sc_iot; 84 bus_space_handle_t sc_ioh; 85 struct plumisa_resource sc_isa[PLUM_IOBUS_IO5CSMAX]; 86 }; 87 88 CFATTACH_DECL(plumiobus, sizeof(struct plumiobus_softc), 89 plumiobus_match, plumiobus_attach, NULL, NULL); 90 91 bus_space_tag_t __plumiobus_subregion(bus_space_tag_t, bus_addr_t, 92 bus_size_t); 93 #ifdef PLUMIOBUSDEBUG 94 void plumiobus_dump(struct plumiobus_softc *); 95 #endif 96 97 int 98 plumiobus_match(struct device *parent, struct cfdata *cf, void *aux) 99 { 100 101 return (1); 102 } 103 104 void 105 plumiobus_attach(struct device *parent, struct device *self, void *aux) 106 { 107 struct plum_attach_args *pa = aux; 108 struct plumiobus_softc *sc = (void*)self; 109 struct plumisa_resource *pr; 110 111 sc->sc_pc = pa->pa_pc; 112 sc->sc_regt = pa->pa_regt; 113 sc->sc_iot = pa->pa_iot; 114 115 if (bus_space_map(sc->sc_regt, PLUM_IOBUS_REGBASE, 116 PLUM_IOBUS_REGSIZE, 0, &sc->sc_regh)) { 117 printf(": register map failed.\n"); 118 return; 119 } 120 printf("\n"); 121 plum_power_establish(sc->sc_pc, PLUM_PWR_IO5); 122 123 /* Address space <-> IRQ mapping */ 124 pr = &sc->sc_isa[IO5CS0]; 125 pr->pr_irq = PLUM_INT_EXT5IO0; 126 pr->pr_iot = __plumiobus_subregion( 127 sc->sc_iot, 128 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS0BASE, 129 PLUM_IOBUS_IO5SIZE); 130 131 pr = &sc->sc_isa[IO5CS1]; 132 pr->pr_irq = PLUM_INT_EXT5IO1; 133 pr->pr_iot = __plumiobus_subregion( 134 sc->sc_iot, 135 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS1BASE, 136 PLUM_IOBUS_IO5SIZE); 137 138 pr = &sc->sc_isa[IO5CS2]; 139 pr->pr_irq = PLUM_INT_EXT5IO2; 140 pr->pr_iot = __plumiobus_subregion( 141 sc->sc_iot, 142 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS2BASE, 143 PLUM_IOBUS_IO5SIZE); 144 145 pr = &sc->sc_isa[IO5CS3]; 146 pr->pr_irq = PLUM_INT_EXT5IO3; 147 pr->pr_iot = __plumiobus_subregion( 148 sc->sc_iot, 149 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS3BASE, 150 PLUM_IOBUS_IO5SIZE); 151 152 pr = &sc->sc_isa[IO5CS4]; 153 pr->pr_irq = PLUM_INT_EXT3IO0; /* XXX */ 154 pr->pr_iot = __plumiobus_subregion( 155 sc->sc_iot, 156 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS4BASE, 157 PLUM_IOBUS_IO5SIZE); 158 159 160 pr = &sc->sc_isa[IO5NCS]; 161 pr->pr_irq = PLUM_INT_EXT3IO1; 162 pr->pr_iot = __plumiobus_subregion( 163 sc->sc_iot, 164 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS5BASE, 165 PLUM_IOBUS_IO5SIZE); 166 167 #ifdef PLUMIOBUSDEBUG 168 plumiobus_dump(sc); 169 #endif 170 171 config_search(plumiobus_search, self, plumiobus_print); 172 } 173 174 /* XXX something kludge */ 175 bus_space_tag_t 176 __plumiobus_subregion(bus_space_tag_t t, bus_addr_t ofs, bus_size_t size) 177 { 178 struct hpcmips_bus_space *hbs; 179 180 if (!(hbs = malloc(sizeof(struct hpcmips_bus_space), 181 M_DEVBUF, M_NOWAIT))) { 182 panic ("__plumiobus_subregion: no memory."); 183 } 184 *hbs = *t; 185 hbs->t_base += ofs; 186 hbs->t_size = size; 187 188 return (hbs); 189 } 190 191 int 192 plumiobus_search(struct device *parent, struct cfdata *cf, void *aux) 193 { 194 struct plumiobus_softc *sc = (void*)parent; 195 struct plumiobus_attach_args pba; 196 int slot; 197 198 /* Disallow wildcarded IO5CS slot */ 199 if (cf->cf_loc[PLUMIOBUSIFCF_SLOT] == PLUMIOBUSIFCF_SLOT_DEFAULT) { 200 printf("plumiobus_search: wildcarded slot, skipping\n"); 201 return (0); 202 } 203 slot = pba.pba_slot = cf->cf_loc[PLUMIOBUSIFCF_SLOT]; 204 205 pba.pba_pc = sc->sc_pc; 206 pba.pba_iot = sc->sc_isa[slot].pr_iot; 207 pba.pba_irq = sc->sc_isa[slot].pr_irq; 208 pba.pba_busname = "plumisab"; 209 210 if (!(sc->sc_isa[slot].pr_enabled) && /* not attached slot */ 211 config_match(parent, cf, &pba)) { 212 config_attach(parent, cf, &pba, plumiobus_print); 213 sc->sc_isa[slot].pr_enabled = 1; 214 } 215 216 return (0); 217 } 218 219 int 220 plumiobus_print(void *aux, const char *pnp) 221 { 222 223 return (pnp ? QUIET : UNCONF); 224 } 225 226 #ifdef PLUMIOBUSDEBUG 227 void 228 plumiobus_dump(struct plumiobus_softc *sc) 229 { 230 bus_space_tag_t regt = sc->sc_regt; 231 bus_space_handle_t regh = sc->sc_regh; 232 plumreg_t reg; 233 int i, wait; 234 235 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXBSZ_REG); 236 printf("8bit port:"); 237 for (i = 0; i < 6; i++) { 238 if (reg & (1 << i)) { 239 printf(" IO5CS%d", i); 240 } 241 } 242 printf("\n"); 243 244 reg = PLUM_IOBUS_IOXCCNT_MASK & 245 plum_conf_read(regt, regh, PLUM_IOBUS_IOXCCNT_REG); 246 printf(" # of wait to become from the access begining: %d clock\n", 247 reg + 1); 248 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXACNT_REG); 249 printf(" # of wait in access clock: "); 250 for (i = 0; i < 5; i++) { 251 wait = (reg >> (i * PLUM_IOBUS_IOXACNT_SHIFT)) 252 & PLUM_IOBUS_IOXACNT_MASK; 253 printf("[CS%d:%d] ", i, wait + 1); 254 } 255 printf("\n"); 256 257 reg = PLUM_IOBUS_IOXSCNT_MASK & 258 plum_conf_read(regt, regh, PLUM_IOBUS_IOXSCNT_REG); 259 printf(" # of wait during access by I/O bus : %d clock\n", reg + 1); 260 261 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IDEMODE_REG); 262 if (reg & PLUM_IOBUS_IDEMODE) { 263 printf("IO5CS3,4 IDE mode\n"); 264 } 265 } 266 #endif /* PLUMIOBUSDEBUG */ 267
Indexes created Thu Oct 02 01:09:59 GMT 2025