1 /* $NetBSD: plumiobus.c,v 1.5 2002/01/29 18:53:11 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 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 struct cfattach plumiobus_ca = { 89 sizeof(struct plumiobus_softc), plumiobus_match, plumiobus_attach 90 }; 91 92 bus_space_tag_t __plumiobus_subregion(bus_space_tag_t, bus_addr_t, 93 bus_size_t); 94 #ifdef PLUMIOBUSDEBUG 95 void plumiobus_dump(struct plumiobus_softc *); 96 #endif 97 98 int 99 plumiobus_match(struct device *parent, struct cfdata *cf, void *aux) 100 { 101 102 return (1); 103 } 104 105 void 106 plumiobus_attach(struct device *parent, struct device *self, void *aux) 107 { 108 struct plum_attach_args *pa = aux; 109 struct plumiobus_softc *sc = (void*)self; 110 struct plumisa_resource *pr; 111 112 sc->sc_pc = pa->pa_pc; 113 sc->sc_regt = pa->pa_regt; 114 sc->sc_iot = pa->pa_iot; 115 116 if (bus_space_map(sc->sc_regt, PLUM_IOBUS_REGBASE, 117 PLUM_IOBUS_REGSIZE, 0, &sc->sc_regh)) { 118 printf(": register map failed.\n"); 119 return; 120 } 121 printf("\n"); 122 plum_power_establish(sc->sc_pc, PLUM_PWR_IO5); 123 124 /* Address space <-> IRQ mapping */ 125 pr = &sc->sc_isa[IO5CS0]; 126 pr->pr_irq = PLUM_INT_EXT5IO0; 127 pr->pr_iot = __plumiobus_subregion( 128 sc->sc_iot, 129 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS0BASE, 130 PLUM_IOBUS_IO5SIZE); 131 132 pr = &sc->sc_isa[IO5CS1]; 133 pr->pr_irq = PLUM_INT_EXT5IO1; 134 pr->pr_iot = __plumiobus_subregion( 135 sc->sc_iot, 136 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS1BASE, 137 PLUM_IOBUS_IO5SIZE); 138 139 pr = &sc->sc_isa[IO5CS2]; 140 pr->pr_irq = PLUM_INT_EXT5IO2; 141 pr->pr_iot = __plumiobus_subregion( 142 sc->sc_iot, 143 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS2BASE, 144 PLUM_IOBUS_IO5SIZE); 145 146 pr = &sc->sc_isa[IO5CS3]; 147 pr->pr_irq = PLUM_INT_EXT5IO3; 148 pr->pr_iot = __plumiobus_subregion( 149 sc->sc_iot, 150 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS3BASE, 151 PLUM_IOBUS_IO5SIZE); 152 153 pr = &sc->sc_isa[IO5CS4]; 154 pr->pr_irq = PLUM_INT_EXT3IO0; /* XXX */ 155 pr->pr_iot = __plumiobus_subregion( 156 sc->sc_iot, 157 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS4BASE, 158 PLUM_IOBUS_IO5SIZE); 159 160 161 pr = &sc->sc_isa[IO5NCS]; 162 pr->pr_irq = PLUM_INT_EXT3IO1; 163 pr->pr_iot = __plumiobus_subregion( 164 sc->sc_iot, 165 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS5BASE, 166 PLUM_IOBUS_IO5SIZE); 167 168 #ifdef PLUMIOBUSDEBUG 169 plumiobus_dump(sc); 170 #endif 171 172 config_search(plumiobus_search, self, plumiobus_print); 173 } 174 175 /* XXX something kludge */ 176 bus_space_tag_t 177 __plumiobus_subregion(bus_space_tag_t t, bus_addr_t ofs, bus_size_t size) 178 { 179 struct hpcmips_bus_space *hbs; 180 181 if (!(hbs = malloc(sizeof(struct hpcmips_bus_space), 182 M_DEVBUF, M_NOWAIT))) { 183 panic ("__plumiobus_subregion: no memory."); 184 } 185 *hbs = *t; 186 hbs->t_base += ofs; 187 hbs->t_size = size; 188 189 return (hbs); 190 } 191 192 int 193 plumiobus_search(struct device *parent, struct cfdata *cf, void *aux) 194 { 195 struct plumiobus_softc *sc = (void*)parent; 196 struct plumiobus_attach_args pba; 197 int slot; 198 199 /* Disallow wildcarded IO5CS slot */ 200 if (cf->cf_loc[PLUMIOBUSIFCF_SLOT] == PLUMIOBUSIFCF_SLOT_DEFAULT) { 201 printf("plumiobus_search: wildcarded slot, skipping\n"); 202 return (0); 203 } 204 slot = pba.pba_slot = cf->cf_loc[PLUMIOBUSIFCF_SLOT]; 205 206 pba.pba_pc = sc->sc_pc; 207 pba.pba_iot = sc->sc_isa[slot].pr_iot; 208 pba.pba_irq = sc->sc_isa[slot].pr_irq; 209 pba.pba_busname = "plumisab"; 210 211 if (!(sc->sc_isa[slot].pr_enabled) && /* not attached slot */ 212 (*cf->cf_attach->ca_match)(parent, cf, &pba)) { 213 config_attach(parent, cf, &pba, plumiobus_print); 214 sc->sc_isa[slot].pr_enabled = 1; 215 } 216 217 return (0); 218 } 219 220 int 221 plumiobus_print(void *aux, const char *pnp) 222 { 223 224 return (pnp ? QUIET : UNCONF); 225 } 226 227 #ifdef PLUMIOBUSDEBUG 228 void 229 plumiobus_dump(struct plumiobus_softc *sc) 230 { 231 bus_space_tag_t regt = sc->sc_regt; 232 bus_space_handle_t regh = sc->sc_regh; 233 plumreg_t reg; 234 int i, wait; 235 236 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXBSZ_REG); 237 printf("8bit port:"); 238 for (i = 0; i < 6; i++) { 239 if (reg & (1 << i)) { 240 printf(" IO5CS%d", i); 241 } 242 } 243 printf("\n"); 244 245 reg = PLUM_IOBUS_IOXCCNT_MASK & 246 plum_conf_read(regt, regh, PLUM_IOBUS_IOXCCNT_REG); 247 printf(" # of wait to become from the access begining: %d clock\n", 248 reg + 1); 249 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXACNT_REG); 250 printf(" # of wait in access clock: "); 251 for (i = 0; i < 5; i++) { 252 wait = (reg >> (i * PLUM_IOBUS_IOXACNT_SHIFT)) 253 & PLUM_IOBUS_IOXACNT_MASK; 254 printf("[CS%d:%d] ", i, wait + 1); 255 } 256 printf("\n"); 257 258 reg = PLUM_IOBUS_IOXSCNT_MASK & 259 plum_conf_read(regt, regh, PLUM_IOBUS_IOXSCNT_REG); 260 printf(" # of wait during access by I/O bus : %d clock\n", reg + 1); 261 262 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IDEMODE_REG); 263 if (reg & PLUM_IOBUS_IDEMODE) { 264 printf("IO5CS3,4 IDE mode\n"); 265 } 266 } 267 #endif /* PLUMIOBUSDEBUG */ 268