plumiobus.c revision 1.4
1 /* $NetBSD: plumiobus.c,v 1.4 2001/09/15 12:47:06 uch 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 #include "opt_tx39_debug.h" 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/malloc.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 50 #include <hpcmips/tx/tx39var.h> 51 #include <hpcmips/dev/plumvar.h> 52 #include <hpcmips/dev/plumicuvar.h> 53 #include <hpcmips/dev/plumpowervar.h> 54 #include <hpcmips/dev/plumiobusreg.h> 55 #include <hpcmips/dev/plumiobusvar.h> 56 57 #include "locators.h" 58 59 #ifdef PLUMIOBUSDEBUG 60 int plumiobus_debug = 0; 61 #define DPRINTF(arg) if (plumiobus_debug) printf arg; 62 #define DPRINTFN(n, arg) if (plumiobus_debug > (n)) printf arg; 63 #else 64 #define DPRINTF(arg) 65 #define DPRINTFN(n, arg) 66 #endif 67 68 int plumiobus_match(struct device *, struct cfdata *, void *); 69 void plumiobus_attach(struct device *, struct device *, void *); 70 int plumiobus_print(void *, const char *); 71 int plumiobus_search(struct device *, struct cfdata *, void *); 72 73 struct plumisa_resource { 74 int pr_irq; 75 bus_space_tag_t pr_iot; 76 int pr_enabled; 77 }; 78 79 struct plumiobus_softc { 80 struct device sc_dev; 81 plum_chipset_tag_t sc_pc; 82 bus_space_tag_t sc_regt; 83 bus_space_handle_t sc_regh; 84 bus_space_tag_t sc_iot; 85 bus_space_handle_t sc_ioh; 86 struct plumisa_resource sc_isa[PLUM_IOBUS_IO5CSMAX]; 87 }; 88 89 struct cfattach plumiobus_ca = { 90 sizeof(struct plumiobus_softc), plumiobus_match, plumiobus_attach 91 }; 92 93 bus_space_tag_t __plumiobus_subregion(bus_space_tag_t, bus_addr_t, 94 bus_size_t); 95 #ifdef PLUMIOBUSDEBUG 96 void plumiobus_dump(struct plumiobus_softc *); 97 #endif 98 99 int 100 plumiobus_match(struct device *parent, struct cfdata *cf, void *aux) 101 { 102 103 return (1); 104 } 105 106 void 107 plumiobus_attach(struct device *parent, struct device *self, void *aux) 108 { 109 struct plum_attach_args *pa = aux; 110 struct plumiobus_softc *sc = (void*)self; 111 struct plumisa_resource *pr; 112 113 sc->sc_pc = pa->pa_pc; 114 sc->sc_regt = pa->pa_regt; 115 sc->sc_iot = pa->pa_iot; 116 117 if (bus_space_map(sc->sc_regt, PLUM_IOBUS_REGBASE, 118 PLUM_IOBUS_REGSIZE, 0, &sc->sc_regh)) { 119 printf(": register map failed.\n"); 120 return; 121 } 122 printf("\n"); 123 plum_power_establish(sc->sc_pc, PLUM_PWR_IO5); 124 125 /* Address space <-> IRQ mapping */ 126 pr = &sc->sc_isa[IO5CS0]; 127 pr->pr_irq = PLUM_INT_EXT5IO0; 128 pr->pr_iot = __plumiobus_subregion( 129 sc->sc_iot, 130 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS0BASE, 131 PLUM_IOBUS_IO5SIZE); 132 133 pr = &sc->sc_isa[IO5CS1]; 134 pr->pr_irq = PLUM_INT_EXT5IO1; 135 pr->pr_iot = __plumiobus_subregion( 136 sc->sc_iot, 137 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS1BASE, 138 PLUM_IOBUS_IO5SIZE); 139 140 pr = &sc->sc_isa[IO5CS2]; 141 pr->pr_irq = PLUM_INT_EXT5IO2; 142 pr->pr_iot = __plumiobus_subregion( 143 sc->sc_iot, 144 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS2BASE, 145 PLUM_IOBUS_IO5SIZE); 146 147 pr = &sc->sc_isa[IO5CS3]; 148 pr->pr_irq = PLUM_INT_EXT5IO3; 149 pr->pr_iot = __plumiobus_subregion( 150 sc->sc_iot, 151 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS3BASE, 152 PLUM_IOBUS_IO5SIZE); 153 154 pr = &sc->sc_isa[IO5CS4]; 155 pr->pr_irq = PLUM_INT_EXT3IO0; /* XXX */ 156 pr->pr_iot = __plumiobus_subregion( 157 sc->sc_iot, 158 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS4BASE, 159 PLUM_IOBUS_IO5SIZE); 160 161 162 pr = &sc->sc_isa[IO5NCS]; 163 pr->pr_irq = PLUM_INT_EXT3IO1; 164 pr->pr_iot = __plumiobus_subregion( 165 sc->sc_iot, 166 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS5BASE, 167 PLUM_IOBUS_IO5SIZE); 168 169 #ifdef PLUMIOBUSDEBUG 170 plumiobus_dump(sc); 171 #endif 172 173 config_search(plumiobus_search, self, plumiobus_print); 174 } 175 176 /* XXX something kludge */ 177 bus_space_tag_t 178 __plumiobus_subregion(bus_space_tag_t t, bus_addr_t ofs, bus_size_t size) 179 { 180 struct hpcmips_bus_space *hbs; 181 182 if (!(hbs = malloc(sizeof(struct hpcmips_bus_space), 183 M_DEVBUF, M_NOWAIT))) { 184 panic ("__plumiobus_subregion: no memory."); 185 } 186 *hbs = *t; 187 hbs->t_base += ofs; 188 hbs->t_size = size; 189 190 return (hbs); 191 } 192 193 int 194 plumiobus_search(struct device *parent, struct cfdata *cf, void *aux) 195 { 196 struct plumiobus_softc *sc = (void*)parent; 197 struct plumiobus_attach_args pba; 198 int slot; 199 200 /* Disallow wildcarded IO5CS slot */ 201 if (cf->cf_loc[PLUMIOBUSIFCF_SLOT] == PLUMIOBUSIFCF_SLOT_DEFAULT) { 202 printf("plumiobus_search: wildcarded slot, skipping\n"); 203 return (0); 204 } 205 slot = pba.pba_slot = cf->cf_loc[PLUMIOBUSIFCF_SLOT]; 206 207 pba.pba_pc = sc->sc_pc; 208 pba.pba_iot = sc->sc_isa[slot].pr_iot; 209 pba.pba_irq = sc->sc_isa[slot].pr_irq; 210 pba.pba_busname = "plumisab"; 211 212 if (!(sc->sc_isa[slot].pr_enabled) && /* not attached slot */ 213 (*cf->cf_attach->ca_match)(parent, cf, &pba)) { 214 config_attach(parent, cf, &pba, plumiobus_print); 215 sc->sc_isa[slot].pr_enabled = 1; 216 } 217 218 return (0); 219 } 220 221 int 222 plumiobus_print(void *aux, const char *pnp) 223 { 224 225 return (pnp ? QUIET : UNCONF); 226 } 227 228 #ifdef PLUMIOBUSDEBUG 229 void 230 plumiobus_dump(struct plumiobus_softc *sc) 231 { 232 bus_space_tag_t regt = sc->sc_regt; 233 bus_space_handle_t regh = sc->sc_regh; 234 plumreg_t reg; 235 int i, wait; 236 237 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXBSZ_REG); 238 printf("8bit port:"); 239 for (i = 0; i < 6; i++) { 240 if (reg & (1 << i)) { 241 printf(" IO5CS%d", i); 242 } 243 } 244 printf("\n"); 245 246 reg = PLUM_IOBUS_IOXCCNT_MASK & 247 plum_conf_read(regt, regh, PLUM_IOBUS_IOXCCNT_REG); 248 printf(" # of wait to become from the access begining: %d clock\n", 249 reg + 1); 250 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXACNT_REG); 251 printf(" # of wait in access clock: "); 252 for (i = 0; i < 5; i++) { 253 wait = (reg >> (i * PLUM_IOBUS_IOXACNT_SHIFT)) 254 & PLUM_IOBUS_IOXACNT_MASK; 255 printf("[CS%d:%d] ", i, wait + 1); 256 } 257 printf("\n"); 258 259 reg = PLUM_IOBUS_IOXSCNT_MASK & 260 plum_conf_read(regt, regh, PLUM_IOBUS_IOXSCNT_REG); 261 printf(" # of wait during access by I/O bus : %d clock\n", reg + 1); 262 263 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IDEMODE_REG); 264 if (reg & PLUM_IOBUS_IDEMODE) { 265 printf("IO5CS3,4 IDE mode\n"); 266 } 267 } 268 #endif /* PLUMIOBUSDEBUG */ 269
Indexes created Thu Oct 02 01:09:59 GMT 2025