obs266_machdep.c revision 1.12
1 /* $NetBSD: obs266_machdep.c,v 1.12 2010/03/18 13:47:04 kiyohara Exp $ */ 2 /* Original: md_machdep.c,v 1.3 2005/01/24 18:47:37 shige Exp $ */ 3 4 /* 5 * Copyright 2001, 2002 Wasabi Systems, Inc. 6 * All rights reserved. 7 * 8 * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. 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 for the NetBSD Project by 21 * Wasabi Systems, Inc. 22 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 23 * or promote products derived from this software without specific prior 24 * written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 27 * 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 WASABI SYSTEMS, INC 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 /* 40 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 41 * Copyright (C) 1995, 1996 TooLs GmbH. 42 * All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by TooLs GmbH. 55 * 4. The name of TooLs GmbH may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 62 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 63 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 64 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 65 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 66 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 67 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: obs266_machdep.c,v 1.12 2010/03/18 13:47:04 kiyohara Exp $"); 72 73 #include "opt_compat_netbsd.h" 74 #include "opt_ddb.h" 75 #include "opt_ipkdb.h" 76 #include "opt_modular.h" 77 78 #include <sys/param.h> 79 #include <sys/kernel.h> 80 #include <sys/ksyms.h> 81 #include <sys/mount.h> 82 #include <sys/reboot.h> 83 #include <sys/systm.h> 84 #include <sys/device.h> 85 86 #include <uvm/uvm.h> 87 #include <uvm/uvm_extern.h> 88 89 #include <machine/bus.h> 90 #include <machine/cpu.h> 91 #include <machine/obs266.h> 92 #include <powerpc/spr.h> 93 #include <powerpc/ibm4xx/dcr4xx.h> 94 #include <powerpc/ibm4xx/dev/comopbvar.h> 95 #include <powerpc/ibm4xx/ibm405gp.h> 96 #include <powerpc/ibm4xx/openbios.h> 97 #include <powerpc/ibm4xx/spr.h> 98 99 #include <dev/pci/pcivar.h> 100 #include <dev/pci/pciconf.h> 101 102 #include "ksyms.h" 103 104 105 #define TLB_PG_SIZE (16*1024*1024) 106 107 /* 108 * Global variables used here and there 109 */ 110 char bootpath[256]; 111 112 extern paddr_t msgbuf_paddr; 113 114 #if NKSYMS || defined(DDB) || defined(MODULAR) 115 void *startsym, *endsym; 116 #endif 117 118 void initppc(u_int, u_int, char *, void *); 119 int lcsplx(int); 120 121 122 void 123 initppc(u_int startkernel, u_int endkernel, char *args, void *info_block) 124 { 125 vaddr_t va; 126 u_int memsize; 127 128 /* Setup board from OpenBIOS */ 129 openbios_board_init(info_block, startkernel); 130 memsize = openbios_board_memsize_get(); 131 132 /* Linear map kernel memory */ 133 for (va = 0; va < endkernel; va += TLB_PG_SIZE) 134 ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); 135 136 /* Map console after RAM (see pmap_tlbmiss()) */ 137 ppc4xx_tlb_reserve(OBS405_CONADDR, roundup(memsize, TLB_PG_SIZE), 138 TLB_PG_SIZE, TLB_I | TLB_G); 139 140 /* Initialize IBM405GPr CPU */ 141 ibm40x_memsize_init(memsize, startkernel); 142 ibm4xx_init((void (*)(void))ext_intr); 143 144 /* 145 * Set the page size. 146 */ 147 uvm_setpagesize(); 148 149 /* 150 * Initialize pmap module. 151 */ 152 pmap_bootstrap(startkernel, endkernel); 153 154 #ifdef DEBUG 155 openbios_board_print(); 156 #endif 157 158 #if NKSYMS || defined(DDB) || defined(MODULAR) 159 ksyms_addsyms_elf((int)((u_int)endsym - (u_int)startsym), startsym, endsym); 160 #endif 161 #ifdef DDB 162 if (boothowto & RB_KDB) 163 Debugger(); 164 #endif 165 #ifdef IPKDB 166 /* 167 * Now trap to IPKDB 168 */ 169 ipkdb_init(); 170 if (boothowto & RB_KDB) 171 ipkdb_connect(0); 172 #endif 173 } 174 175 void 176 consinit(void) 177 { 178 179 obs405_consinit(OBS266_COM_FREQ); 180 } 181 182 int 183 lcsplx(int ipl) 184 { 185 186 return spllower(ipl); /* XXX */ 187 } 188 189 190 /* 191 * Machine dependent startup code. 192 */ 193 void 194 cpu_startup(void) 195 { 196 197 /* 198 * cpu common startup 199 */ 200 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 201 202 /* 203 * Set up the board properties database. 204 */ 205 openbios_board_info_set(); 206 207 /* 208 * Now that we have VM, malloc()s are OK in bus_space. 209 */ 210 bus_space_mallocok(); 211 212 /* 213 * no fake mapiodev 214 */ 215 fake_mapiodev = 0; 216 } 217 218 /* 219 * Halt or reboot the machine after syncing/dumping according to howto. 220 */ 221 void 222 cpu_reboot(int howto, char *what) 223 { 224 static int syncing; 225 static char str[256]; 226 char *ap = str, *ap1 = ap; 227 228 boothowto = howto; 229 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 230 syncing = 1; 231 vfs_shutdown(); /* sync */ 232 resettodr(); /* set wall clock */ 233 } 234 235 splhigh(); 236 237 if (!cold && (howto & RB_DUMP)) 238 ibm4xx_dumpsys(); 239 240 doshutdownhooks(); 241 242 pmf_system_shutdown(boothowto); 243 244 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 245 /* Power off here if we know how...*/ 246 } 247 248 if (howto & RB_HALT) { 249 printf("halted\n\n"); 250 251 #if 0 252 goto reboot; /* XXX for now... */ 253 #endif 254 255 #ifdef DDB 256 printf("dropping to debugger\n"); 257 while(1) 258 Debugger(); 259 #endif 260 } 261 262 printf("rebooting\n\n"); 263 if (what && *what) { 264 if (strlen(what) > sizeof str - 5) 265 printf("boot string too large, ignored\n"); 266 else { 267 strcpy(str, what); 268 ap1 = ap = str + strlen(str); 269 *ap++ = ' '; 270 } 271 } 272 *ap++ = '-'; 273 if (howto & RB_SINGLE) 274 *ap++ = 's'; 275 if (howto & RB_KDB) 276 *ap++ = 'd'; 277 *ap++ = 0; 278 if (ap[-2] == '-') 279 *ap1 = 0; 280 281 /* flush cache for msgbuf */ 282 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 283 284 #if 0 285 reboot: 286 #endif 287 ppc4xx_reset(); 288 289 printf("ppc4xx_reset() failed!\n"); 290 #ifdef DDB 291 while(1) 292 Debugger(); 293 #else 294 while (1) 295 /* nothing */; 296 #endif 297 } 298 299 int 300 pci_bus_maxdevs(pci_chipset_tag_t pc, int busno) 301 { 302 303 /* 304 * Bus number is irrelevant. Configuration Mechanism 1 is in 305 * use, can have devices 0-32 (i.e. the `normal' range). 306 */ 307 return 31; 308 } 309 310 int 311 pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 312 { 313 /* 314 * We need to map the interrupt pin to the interrupt bit 315 * in the UIC associated with it. 316 * 317 * This platform has 4 PCI devices. 318 * 319 # External IRQ Mappings: 320 * dev 1 (Ext IRQ3): PCI Connector 321 * dev 2 (Ext IRQ4): PCI Connector 322 * dev 3 (Ext IRQ5): HPT IDE Controller 323 * dev 4 (Ext IRQ6): Davicom Ethernet 324 */ 325 static const int irqmap[4/*device*/][4/*pin*/] = { 326 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 327 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 328 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 329 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 330 }; 331 332 int pin, dev, irq; 333 334 pin = pa->pa_intrpin; 335 dev = pa->pa_device; 336 *ihp = -1; 337 338 /* if interrupt pin not used... */ 339 if (pin == 0) 340 return 1; 341 342 if (pin > 4) { 343 printf("pci_intr_map: bad interrupt pin %d\n", pin); 344 return 1; 345 } 346 347 if ((dev < 1) || (dev > 4)) { 348 printf("pci_intr_map: bad device %d\n", dev); 349 return 1; 350 } 351 352 353 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 354 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 355 dev, pin); 356 return 1; 357 } 358 359 *ihp = irq + 25; 360 return 0; 361 } 362 363 void 364 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 365 int swiz, int *iline) 366 { 367 368 static const int ilinemap[4/*device*/] = { 369 3, 4, 5 ,6 370 }; 371 372 if ((dev < 1) || (dev > 4)) { 373 printf("pci_intr_map: bad device %d\n", dev); 374 *iline = 0; 375 return; 376 } 377 *iline = ilinemap[dev - 1] + 25; 378 } 379
Indexes created Tue Sep 30 20:09:53 GMT 2025