plumiobus.c revision 1.10
1/* $NetBSD: plumiobus.c,v 1.10 2005/06/30 17:03:53 drochner 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#include <sys/cdefs.h> 40__KERNEL_RCSID(0, "$NetBSD: plumiobus.c,v 1.10 2005/06/30 17:03:53 drochner Exp $"); 41 42#define PLUMIOBUSDEBUG 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/device.h> 47#include <sys/malloc.h> 48 49#include <machine/bus.h> 50#include <machine/intr.h> 51 52#include <hpcmips/tx/tx39var.h> 53#include <hpcmips/dev/plumvar.h> 54#include <hpcmips/dev/plumicuvar.h> 55#include <hpcmips/dev/plumpowervar.h> 56#include <hpcmips/dev/plumiobusreg.h> 57#include <hpcmips/dev/plumiobusvar.h> 58 59#include "locators.h" 60 61#ifdef PLUMIOBUSDEBUG 62int plumiobus_debug = 0; 63#define DPRINTF(arg) if (plumiobus_debug) printf arg; 64#define DPRINTFN(n, arg) if (plumiobus_debug > (n)) printf arg; 65#else 66#define DPRINTF(arg) 67#define DPRINTFN(n, arg) 68#endif 69 70int plumiobus_match(struct device *, struct cfdata *, void *); 71void plumiobus_attach(struct device *, struct device *, void *); 72int plumiobus_print(void *, const char *); 73int plumiobus_search(struct device *, struct cfdata *, 74 const locdesc_t *, void *); 75 76struct plumisa_resource { 77 int pr_irq; 78 bus_space_tag_t pr_iot; 79 int pr_enabled; 80}; 81 82struct plumiobus_softc { 83 struct device sc_dev; 84 plum_chipset_tag_t sc_pc; 85 bus_space_tag_t sc_regt; 86 bus_space_handle_t sc_regh; 87 bus_space_tag_t sc_iot; 88 bus_space_handle_t sc_ioh; 89 struct plumisa_resource sc_isa[PLUM_IOBUS_IO5CSMAX]; 90}; 91 92CFATTACH_DECL(plumiobus, sizeof(struct plumiobus_softc), 93 plumiobus_match, plumiobus_attach, NULL, NULL); 94 95bus_space_tag_t __plumiobus_subregion(bus_space_tag_t, bus_addr_t, 96 bus_size_t); 97#ifdef PLUMIOBUSDEBUG 98void plumiobus_dump(struct plumiobus_softc *); 99#endif 100 101int 102plumiobus_match(struct device *parent, struct cfdata *cf, void *aux) 103{ 104 105 return (1); 106} 107 108void 109plumiobus_attach(struct device *parent, struct device *self, void *aux) 110{ 111 struct plum_attach_args *pa = aux; 112 struct plumiobus_softc *sc = (void*)self; 113 struct plumisa_resource *pr; 114 115 sc->sc_pc = pa->pa_pc; 116 sc->sc_regt = pa->pa_regt; 117 sc->sc_iot = pa->pa_iot; 118 119 if (bus_space_map(sc->sc_regt, PLUM_IOBUS_REGBASE, 120 PLUM_IOBUS_REGSIZE, 0, &sc->sc_regh)) { 121 printf(": register map failed.\n"); 122 return; 123 } 124 printf("\n"); 125 plum_power_establish(sc->sc_pc, PLUM_PWR_IO5); 126 127 /* Address space <-> IRQ mapping */ 128 pr = &sc->sc_isa[IO5CS0]; 129 pr->pr_irq = PLUM_INT_EXT5IO0; 130 pr->pr_iot = __plumiobus_subregion( 131 sc->sc_iot, 132 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS0BASE, 133 PLUM_IOBUS_IO5SIZE); 134 135 pr = &sc->sc_isa[IO5CS1]; 136 pr->pr_irq = PLUM_INT_EXT5IO1; 137 pr->pr_iot = __plumiobus_subregion( 138 sc->sc_iot, 139 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS1BASE, 140 PLUM_IOBUS_IO5SIZE); 141 142 pr = &sc->sc_isa[IO5CS2]; 143 pr->pr_irq = PLUM_INT_EXT5IO2; 144 pr->pr_iot = __plumiobus_subregion( 145 sc->sc_iot, 146 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS2BASE, 147 PLUM_IOBUS_IO5SIZE); 148 149 pr = &sc->sc_isa[IO5CS3]; 150 pr->pr_irq = PLUM_INT_EXT5IO3; 151 pr->pr_iot = __plumiobus_subregion( 152 sc->sc_iot, 153 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS3BASE, 154 PLUM_IOBUS_IO5SIZE); 155 156 pr = &sc->sc_isa[IO5CS4]; 157 pr->pr_irq = PLUM_INT_EXT3IO0; /* XXX */ 158 pr->pr_iot = __plumiobus_subregion( 159 sc->sc_iot, 160 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS4BASE, 161 PLUM_IOBUS_IO5SIZE); 162 163 164 pr = &sc->sc_isa[IO5NCS]; 165 pr->pr_irq = PLUM_INT_EXT3IO1; 166 pr->pr_iot = __plumiobus_subregion( 167 sc->sc_iot, 168 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS5BASE, 169 PLUM_IOBUS_IO5SIZE); 170 171#ifdef PLUMIOBUSDEBUG 172 plumiobus_dump(sc); 173#endif 174 175 config_search_ia(plumiobus_search, self, "plumiobusif", plumiobus_print); 176} 177 178/* XXX something kludge */ 179bus_space_tag_t 180__plumiobus_subregion(bus_space_tag_t t, bus_addr_t ofs, bus_size_t size) 181{ 182 struct hpcmips_bus_space *hbs; 183 184 if (!(hbs = malloc(sizeof(struct hpcmips_bus_space), 185 M_DEVBUF, M_NOWAIT))) { 186 panic ("__plumiobus_subregion: no memory."); 187 } 188 *hbs = *t; 189 hbs->t_base += ofs; 190 hbs->t_size = size; 191 192 return (hbs); 193} 194 195int 196plumiobus_search(struct device *parent, struct cfdata *cf, 197 const locdesc_t *ldesc, void *aux) 198{ 199 struct plumiobus_softc *sc = (void*)parent; 200 struct plumiobus_attach_args pba; 201 int slot; 202 203 /* Disallow wildcarded IO5CS slot */ 204 if (cf->cf_loc[PLUMIOBUSIFCF_SLOT] == PLUMIOBUSIFCF_SLOT_DEFAULT) { 205 printf("plumiobus_search: wildcarded slot, skipping\n"); 206 return (0); 207 } 208 slot = pba.pba_slot = cf->cf_loc[PLUMIOBUSIFCF_SLOT]; 209 210 pba.pba_pc = sc->sc_pc; 211 pba.pba_iot = sc->sc_isa[slot].pr_iot; 212 pba.pba_irq = sc->sc_isa[slot].pr_irq; 213 pba.pba_busname = "plumisab"; 214 215 if (!(sc->sc_isa[slot].pr_enabled) && /* not attached slot */ 216 config_match(parent, cf, &pba)) { 217 config_attach(parent, cf, &pba, plumiobus_print); 218 sc->sc_isa[slot].pr_enabled = 1; 219 } 220 221 return (0); 222} 223 224int 225plumiobus_print(void *aux, const char *pnp) 226{ 227 228 return (pnp ? QUIET : UNCONF); 229} 230 231#ifdef PLUMIOBUSDEBUG 232void 233plumiobus_dump(struct plumiobus_softc *sc) 234{ 235 bus_space_tag_t regt = sc->sc_regt; 236 bus_space_handle_t regh = sc->sc_regh; 237 plumreg_t reg; 238 int i, wait; 239 240 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXBSZ_REG); 241 printf("8bit port:"); 242 for (i = 0; i < 6; i++) { 243 if (reg & (1 << i)) { 244 printf(" IO5CS%d", i); 245 } 246 } 247 printf("\n"); 248 249 reg = PLUM_IOBUS_IOXCCNT_MASK & 250 plum_conf_read(regt, regh, PLUM_IOBUS_IOXCCNT_REG); 251 printf(" # of wait to become from the access begining: %d clock\n", 252 reg + 1); 253 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXACNT_REG); 254 printf(" # of wait in access clock: "); 255 for (i = 0; i < 5; i++) { 256 wait = (reg >> (i * PLUM_IOBUS_IOXACNT_SHIFT)) 257 & PLUM_IOBUS_IOXACNT_MASK; 258 printf("[CS%d:%d] ", i, wait + 1); 259 } 260 printf("\n"); 261 262 reg = PLUM_IOBUS_IOXSCNT_MASK & 263 plum_conf_read(regt, regh, PLUM_IOBUS_IOXSCNT_REG); 264 printf(" # of wait during access by I/O bus : %d clock\n", reg + 1); 265 266 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IDEMODE_REG); 267 if (reg & PLUM_IOBUS_IDEMODE) { 268 printf("IO5CS3,4 IDE mode\n"); 269 } 270} 271#endif /* PLUMIOBUSDEBUG */ 272