obs266_machdep.c revision 1.10.2.2
1 /* $NetBSD: obs266_machdep.c,v 1.10.2.2 2010/08/11 14:02:45 uebayasi 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 1.10.2.2 2010/08/11 14:02:45 uebayasi Exp $"); 72 73 #include "opt_compat_netbsd.h" 74 #include "opt_ddb.h" 75 #include "opt_ipkdb.h" 76 #include "opt_modular.h" 77 #include "opt_xip.h" 78 79 #include <sys/param.h> 80 #include <sys/kernel.h> 81 #include <sys/ksyms.h> 82 #include <sys/mount.h> 83 #include <sys/reboot.h> 84 #include <sys/systm.h> 85 #include <sys/device.h> 86 87 #include <uvm/uvm.h> 88 #include <uvm/uvm_extern.h> 89 90 #include <machine/bus.h> 91 #include <machine/cpu.h> 92 #include <machine/obs266.h> 93 #include <powerpc/spr.h> 94 #include <powerpc/ibm4xx/dcr4xx.h> 95 #include <powerpc/ibm4xx/dev/comopbvar.h> 96 #include <powerpc/ibm4xx/ibm405gp.h> 97 #include <powerpc/ibm4xx/openbios.h> 98 #include <powerpc/ibm4xx/spr.h> 99 100 #include <dev/ic/comreg.h> 101 #include <dev/pci/pcivar.h> 102 #include <dev/pci/pciconf.h> 103 104 #include "ksyms.h" 105 106 #include "com.h" 107 #if (NCOM > 0) 108 #include <sys/termios.h> 109 110 #ifndef CONADDR 111 #define CONADDR IBM405GP_UART0_BASE 112 #endif 113 #ifndef CONSPEED 114 #define CONSPEED B9600 115 #endif 116 #ifndef CONMODE 117 /* 8N1 */ 118 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) 119 #endif 120 #endif /* NCOM */ 121 122 #define TLB_PG_SIZE (16*1024*1024) 123 124 /* 125 * Global variables used here and there 126 */ 127 char bootpath[256]; 128 129 extern paddr_t msgbuf_paddr; 130 131 #if NKSYMS || defined(DDB) || defined(MODULAR) 132 void *startsym, *endsym; 133 #endif 134 135 void initppc(u_int, u_int, char *, void *); 136 int lcsplx(int); 137 138 139 void 140 initppc(u_int startkernel, u_int endkernel, char *args, void *info_block) 141 { 142 vaddr_t va; 143 u_int memsize; 144 145 /* Setup board from OpenBIOS */ 146 openbios_board_init(info_block, startkernel); 147 memsize = openbios_board_memsize_get(); 148 149 /* Linear map kernel memory */ 150 for (va = 0; va < endkernel; va += TLB_PG_SIZE) 151 ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); 152 153 #ifdef XIP 154 /* Map NOR FlashROM as managed. */ 155 ppc4xx_tlb_reserve(0xff000000, 0xff000000, TLB_PG_SIZE, TLB_I); 156 #endif 157 158 /* Map console after RAM (see pmap_tlbmiss()) */ 159 ppc4xx_tlb_reserve(CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE, 160 TLB_I | TLB_G); 161 162 /* Initialize IBM405GPr CPU */ 163 ibm40x_memsize_init(memsize, startkernel); 164 ibm4xx_init((void (*)(void))ext_intr); 165 166 /* 167 * Set the page size. 168 */ 169 uvm_setpagesize(); 170 171 /* 172 * Initialize pmap module. 173 */ 174 pmap_bootstrap(startkernel, endkernel); 175 176 #ifdef DEBUG 177 openbios_board_print(); 178 #endif 179 180 #if NKSYMS || defined(DDB) || defined(MODULAR) 181 ksyms_addsyms_elf((int)((u_int)endsym - (u_int)startsym), startsym, endsym); 182 #endif 183 #ifdef DDB 184 if (boothowto & RB_KDB) 185 Debugger(); 186 #endif 187 #ifdef IPKDB 188 /* 189 * Now trap to IPKDB 190 */ 191 ipkdb_init(); 192 if (boothowto & RB_KDB) 193 ipkdb_connect(0); 194 #endif 195 } 196 197 void 198 consinit(void) 199 { 200 201 #if (NCOM > 0) 202 com_opb_cnattach(OBS266_COM_FREQ, CONADDR, CONSPEED, CONMODE); 203 #endif 204 } 205 206 int 207 lcsplx(int ipl) 208 { 209 210 return spllower(ipl); /* XXX */ 211 } 212 213 214 /* 215 * Machine dependent startup code. 216 */ 217 void 218 cpu_startup(void) 219 { 220 221 /* 222 * cpu common startup 223 */ 224 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 225 226 /* 227 * Set up the board properties database. 228 */ 229 openbios_board_info_set(); 230 231 /* 232 * Now that we have VM, malloc()s are OK in bus_space. 233 */ 234 bus_space_mallocok(); 235 236 /* 237 * no fake mapiodev 238 */ 239 fake_mapiodev = 0; 240 } 241 242 /* 243 * Halt or reboot the machine after syncing/dumping according to howto. 244 */ 245 void 246 cpu_reboot(int howto, char *what) 247 { 248 static int syncing; 249 static char str[256]; 250 char *ap = str, *ap1 = ap; 251 252 boothowto = howto; 253 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 254 syncing = 1; 255 vfs_shutdown(); /* sync */ 256 resettodr(); /* set wall clock */ 257 } 258 259 splhigh(); 260 261 if (!cold && (howto & RB_DUMP)) 262 ibm4xx_dumpsys(); 263 264 doshutdownhooks(); 265 266 pmf_system_shutdown(boothowto); 267 268 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 269 /* Power off here if we know how...*/ 270 } 271 272 if (howto & RB_HALT) { 273 printf("halted\n\n"); 274 275 #if 0 276 goto reboot; /* XXX for now... */ 277 #endif 278 279 #ifdef DDB 280 printf("dropping to debugger\n"); 281 while(1) 282 Debugger(); 283 #endif 284 } 285 286 printf("rebooting\n\n"); 287 if (what && *what) { 288 if (strlen(what) > sizeof str - 5) 289 printf("boot string too large, ignored\n"); 290 else { 291 strcpy(str, what); 292 ap1 = ap = str + strlen(str); 293 *ap++ = ' '; 294 } 295 } 296 *ap++ = '-'; 297 if (howto & RB_SINGLE) 298 *ap++ = 's'; 299 if (howto & RB_KDB) 300 *ap++ = 'd'; 301 *ap++ = 0; 302 if (ap[-2] == '-') 303 *ap1 = 0; 304 305 /* flush cache for msgbuf */ 306 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 307 308 #if 0 309 reboot: 310 #endif 311 ppc4xx_reset(); 312 313 printf("ppc4xx_reset() failed!\n"); 314 #ifdef DDB 315 while(1) 316 Debugger(); 317 #else 318 while (1) 319 /* nothing */; 320 #endif 321 } 322 323 int 324 pci_bus_maxdevs(pci_chipset_tag_t pc, int busno) 325 { 326 327 /* 328 * Bus number is irrelevant. Configuration Mechanism 1 is in 329 * use, can have devices 0-32 (i.e. the `normal' range). 330 */ 331 return 31; 332 } 333 334 int 335 pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 336 { 337 /* 338 * We need to map the interrupt pin to the interrupt bit 339 * in the UIC associated with it. 340 * 341 * This platform has 4 PCI devices. 342 * 343 # External IRQ Mappings: 344 * dev 1 (Ext IRQ3): PCI Connector 345 * dev 2 (Ext IRQ4): PCI Connector 346 * dev 3 (Ext IRQ5): HPT IDE Controller 347 * dev 4 (Ext IRQ6): Davicom Ethernet 348 */ 349 static const int irqmap[4/*device*/][4/*pin*/] = { 350 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 351 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 352 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 353 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 354 }; 355 356 int pin, dev, irq; 357 358 pin = pa->pa_intrpin; 359 dev = pa->pa_device; 360 *ihp = -1; 361 362 /* if interrupt pin not used... */ 363 if (pin == 0) 364 return 1; 365 366 if (pin > 4) { 367 printf("pci_intr_map: bad interrupt pin %d\n", pin); 368 return 1; 369 } 370 371 if ((dev < 1) || (dev > 4)) { 372 printf("pci_intr_map: bad device %d\n", dev); 373 return 1; 374 } 375 376 377 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 378 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 379 dev, pin); 380 return 1; 381 } 382 383 *ihp = irq + 25; 384 return 0; 385 } 386 387 void 388 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 389 int swiz, int *iline) 390 { 391 392 static const int ilinemap[4/*device*/] = { 393 3, 4, 5 ,6 394 }; 395 396 if ((dev < 1) || (dev > 4)) { 397 printf("pci_intr_map: bad device %d\n", dev); 398 *iline = 0; 399 return; 400 } 401 *iline = ilinemap[dev - 1] + 25; 402 } 403
Indexes created Mon Oct 20 10:10:01 GMT 2025