1 /* $NetBSD: plumiobus.c,v 1.13 2008/04/28 20:23:21 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: plumiobus.c,v 1.13 2008/04/28 20:23:21 martin Exp $"); 34 35 #define PLUMIOBUSDEBUG 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 42 #include <machine/bus.h> 43 #include <machine/intr.h> 44 45 #include <hpcmips/tx/tx39var.h> 46 #include <hpcmips/dev/plumvar.h> 47 #include <hpcmips/dev/plumicuvar.h> 48 #include <hpcmips/dev/plumpowervar.h> 49 #include <hpcmips/dev/plumiobusreg.h> 50 #include <hpcmips/dev/plumiobusvar.h> 51 52 #include "locators.h" 53 54 #ifdef PLUMIOBUSDEBUG 55 int plumiobus_debug = 0; 56 #define DPRINTF(arg) if (plumiobus_debug) printf arg; 57 #define DPRINTFN(n, arg) if (plumiobus_debug > (n)) printf arg; 58 #else 59 #define DPRINTF(arg) 60 #define DPRINTFN(n, arg) 61 #endif 62 63 int plumiobus_match(struct device *, struct cfdata *, void *); 64 void plumiobus_attach(struct device *, struct device *, void *); 65 int plumiobus_print(void *, const char *); 66 int plumiobus_search(struct device *, struct cfdata *, 67 const int *, void *); 68 69 struct plumisa_resource { 70 int pr_irq; 71 bus_space_tag_t pr_iot; 72 int pr_enabled; 73 }; 74 75 struct plumiobus_softc { 76 struct device sc_dev; 77 plum_chipset_tag_t sc_pc; 78 bus_space_tag_t sc_regt; 79 bus_space_handle_t sc_regh; 80 bus_space_tag_t sc_iot; 81 bus_space_handle_t sc_ioh; 82 struct plumisa_resource sc_isa[PLUM_IOBUS_IO5CSMAX]; 83 }; 84 85 CFATTACH_DECL(plumiobus, sizeof(struct plumiobus_softc), 86 plumiobus_match, plumiobus_attach, NULL, NULL); 87 88 bus_space_tag_t __plumiobus_subregion(bus_space_tag_t, bus_addr_t, 89 bus_size_t); 90 #ifdef PLUMIOBUSDEBUG 91 void plumiobus_dump(struct plumiobus_softc *); 92 #endif 93 94 int 95 plumiobus_match(struct device *parent, struct cfdata *cf, void *aux) 96 { 97 98 return (1); 99 } 100 101 void 102 plumiobus_attach(struct device *parent, struct device *self, void *aux) 103 { 104 struct plum_attach_args *pa = aux; 105 struct plumiobus_softc *sc = (void*)self; 106 struct plumisa_resource *pr; 107 108 sc->sc_pc = pa->pa_pc; 109 sc->sc_regt = pa->pa_regt; 110 sc->sc_iot = pa->pa_iot; 111 112 if (bus_space_map(sc->sc_regt, PLUM_IOBUS_REGBASE, 113 PLUM_IOBUS_REGSIZE, 0, &sc->sc_regh)) { 114 printf(": register map failed.\n"); 115 return; 116 } 117 printf("\n"); 118 plum_power_establish(sc->sc_pc, PLUM_PWR_IO5); 119 120 /* Address space <-> IRQ mapping */ 121 pr = &sc->sc_isa[IO5CS0]; 122 pr->pr_irq = PLUM_INT_EXT5IO0; 123 pr->pr_iot = __plumiobus_subregion( 124 sc->sc_iot, 125 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS0BASE, 126 PLUM_IOBUS_IO5SIZE); 127 128 pr = &sc->sc_isa[IO5CS1]; 129 pr->pr_irq = PLUM_INT_EXT5IO1; 130 pr->pr_iot = __plumiobus_subregion( 131 sc->sc_iot, 132 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS1BASE, 133 PLUM_IOBUS_IO5SIZE); 134 135 pr = &sc->sc_isa[IO5CS2]; 136 pr->pr_irq = PLUM_INT_EXT5IO2; 137 pr->pr_iot = __plumiobus_subregion( 138 sc->sc_iot, 139 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS2BASE, 140 PLUM_IOBUS_IO5SIZE); 141 142 pr = &sc->sc_isa[IO5CS3]; 143 pr->pr_irq = PLUM_INT_EXT5IO3; 144 pr->pr_iot = __plumiobus_subregion( 145 sc->sc_iot, 146 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS3BASE, 147 PLUM_IOBUS_IO5SIZE); 148 149 pr = &sc->sc_isa[IO5CS4]; 150 pr->pr_irq = PLUM_INT_EXT3IO0; /* XXX */ 151 pr->pr_iot = __plumiobus_subregion( 152 sc->sc_iot, 153 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS4BASE, 154 PLUM_IOBUS_IO5SIZE); 155 156 157 pr = &sc->sc_isa[IO5NCS]; 158 pr->pr_irq = PLUM_INT_EXT3IO1; 159 pr->pr_iot = __plumiobus_subregion( 160 sc->sc_iot, 161 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS5BASE, 162 PLUM_IOBUS_IO5SIZE); 163 164 #ifdef PLUMIOBUSDEBUG 165 plumiobus_dump(sc); 166 #endif 167 168 config_search_ia(plumiobus_search, self, "plumiobusif", plumiobus_print); 169 } 170 171 /* XXX something kludge */ 172 bus_space_tag_t 173 __plumiobus_subregion(bus_space_tag_t t, bus_addr_t ofs, bus_size_t size) 174 { 175 struct hpcmips_bus_space *hbs; 176 177 if (!(hbs = malloc(sizeof(struct hpcmips_bus_space), 178 M_DEVBUF, M_NOWAIT))) { 179 panic ("__plumiobus_subregion: no memory."); 180 } 181 *hbs = *t; 182 hbs->t_base += ofs; 183 hbs->t_size = size; 184 185 return (hbs); 186 } 187 188 int 189 plumiobus_search(struct device *parent, struct cfdata *cf, 190 const int *ldesc, void *aux) 191 { 192 struct plumiobus_softc *sc = (void*)parent; 193 struct plumiobus_attach_args pba; 194 int slot; 195 196 /* Disallow wildcarded IO5CS slot */ 197 if (cf->cf_loc[PLUMIOBUSIFCF_SLOT] == PLUMIOBUSIFCF_SLOT_DEFAULT) { 198 printf("plumiobus_search: wildcarded slot, skipping\n"); 199 return (0); 200 } 201 slot = pba.pba_slot = cf->cf_loc[PLUMIOBUSIFCF_SLOT]; 202 203 pba.pba_pc = sc->sc_pc; 204 pba.pba_iot = sc->sc_isa[slot].pr_iot; 205 pba.pba_irq = sc->sc_isa[slot].pr_irq; 206 pba.pba_busname = "plumisab"; 207 208 if (!(sc->sc_isa[slot].pr_enabled) && /* not attached slot */ 209 config_match(parent, cf, &pba)) { 210 config_attach(parent, cf, &pba, plumiobus_print); 211 sc->sc_isa[slot].pr_enabled = 1; 212 } 213 214 return (0); 215 } 216 217 int 218 plumiobus_print(void *aux, const char *pnp) 219 { 220 221 return (pnp ? QUIET : UNCONF); 222 } 223 224 #ifdef PLUMIOBUSDEBUG 225 void 226 plumiobus_dump(struct plumiobus_softc *sc) 227 { 228 bus_space_tag_t regt = sc->sc_regt; 229 bus_space_handle_t regh = sc->sc_regh; 230 plumreg_t reg; 231 int i, wait; 232 233 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXBSZ_REG); 234 printf("8bit port:"); 235 for (i = 0; i < 6; i++) { 236 if (reg & (1 << i)) { 237 printf(" IO5CS%d", i); 238 } 239 } 240 printf("\n"); 241 242 reg = PLUM_IOBUS_IOXCCNT_MASK & 243 plum_conf_read(regt, regh, PLUM_IOBUS_IOXCCNT_REG); 244 printf(" # of wait to become from the access begining: %d clock\n", 245 reg + 1); 246 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXACNT_REG); 247 printf(" # of wait in access clock: "); 248 for (i = 0; i < 5; i++) { 249 wait = (reg >> (i * PLUM_IOBUS_IOXACNT_SHIFT)) 250 & PLUM_IOBUS_IOXACNT_MASK; 251 printf("[CS%d:%d] ", i, wait + 1); 252 } 253 printf("\n"); 254 255 reg = PLUM_IOBUS_IOXSCNT_MASK & 256 plum_conf_read(regt, regh, PLUM_IOBUS_IOXSCNT_REG); 257 printf(" # of wait during access by I/O bus : %d clock\n", reg + 1); 258 259 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IDEMODE_REG); 260 if (reg & PLUM_IOBUS_IDEMODE) { 261 printf("IO5CS3,4 IDE mode\n"); 262 } 263 } 264 #endif /* PLUMIOBUSDEBUG */ 265