obs266_machdep.c revision 1.13
1 /* $NetBSD: obs266_machdep.c,v 1.13 2010/03/18 14:15:38 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 1.13 2010/03/18 14:15:38 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/ic/comreg.h> 100 #include <dev/pci/pcivar.h> 101 #include <dev/pci/pciconf.h> 102 103 #include "ksyms.h" 104 105 #include "com.h" 106 #if (NCOM > 0) 107 #include <sys/termios.h> 108 109 #ifndef CONADDR 110 #define CONADDR IBM405GP_UART0_BASE 111 #endif 112 #ifndef CONSPEED 113 #define CONSPEED B9600 114 #endif 115 #ifndef CONMODE 116 /* 8N1 */ 117 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) 118 #endif 119 #endif /* NCOM */ 120 121 #define TLB_PG_SIZE (16*1024*1024) 122 123 /* 124 * Global variables used here and there 125 */ 126 char bootpath[256]; 127 128 extern paddr_t msgbuf_paddr; 129 130 #if NKSYMS || defined(DDB) || defined(MODULAR) 131 void *startsym, *endsym; 132 #endif 133 134 void initppc(u_int, u_int, char *, void *); 135 int lcsplx(int); 136 137 138 void 139 initppc(u_int startkernel, u_int endkernel, char *args, void *info_block) 140 { 141 vaddr_t va; 142 u_int memsize; 143 144 /* Setup board from OpenBIOS */ 145 openbios_board_init(info_block, startkernel); 146 memsize = openbios_board_memsize_get(); 147 148 /* Linear map kernel memory */ 149 for (va = 0; va < endkernel; va += TLB_PG_SIZE) 150 ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); 151 152 /* Map console after RAM (see pmap_tlbmiss()) */ 153 ppc4xx_tlb_reserve(CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE, 154 TLB_I | TLB_G); 155 156 /* Initialize IBM405GPr CPU */ 157 ibm40x_memsize_init(memsize, startkernel); 158 ibm4xx_init((void (*)(void))ext_intr); 159 160 /* 161 * Set the page size. 162 */ 163 uvm_setpagesize(); 164 165 /* 166 * Initialize pmap module. 167 */ 168 pmap_bootstrap(startkernel, endkernel); 169 170 #ifdef DEBUG 171 openbios_board_print(); 172 #endif 173 174 #if NKSYMS || defined(DDB) || defined(MODULAR) 175 ksyms_addsyms_elf((int)((u_int)endsym - (u_int)startsym), startsym, endsym); 176 #endif 177 #ifdef DDB 178 if (boothowto & RB_KDB) 179 Debugger(); 180 #endif 181 #ifdef IPKDB 182 /* 183 * Now trap to IPKDB 184 */ 185 ipkdb_init(); 186 if (boothowto & RB_KDB) 187 ipkdb_connect(0); 188 #endif 189 } 190 191 void 192 consinit(void) 193 { 194 195 #if (NCOM > 0) 196 com_opb_cnattach(OBS266_COM_FREQ, CONADDR, CONSPEED, CONMODE); 197 #endif 198 } 199 200 int 201 lcsplx(int ipl) 202 { 203 204 return spllower(ipl); /* XXX */ 205 } 206 207 208 /* 209 * Machine dependent startup code. 210 */ 211 void 212 cpu_startup(void) 213 { 214 215 /* 216 * cpu common startup 217 */ 218 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 219 220 /* 221 * Set up the board properties database. 222 */ 223 openbios_board_info_set(); 224 225 /* 226 * Now that we have VM, malloc()s are OK in bus_space. 227 */ 228 bus_space_mallocok(); 229 230 /* 231 * no fake mapiodev 232 */ 233 fake_mapiodev = 0; 234 } 235 236 /* 237 * Halt or reboot the machine after syncing/dumping according to howto. 238 */ 239 void 240 cpu_reboot(int howto, char *what) 241 { 242 static int syncing; 243 static char str[256]; 244 char *ap = str, *ap1 = ap; 245 246 boothowto = howto; 247 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 248 syncing = 1; 249 vfs_shutdown(); /* sync */ 250 resettodr(); /* set wall clock */ 251 } 252 253 splhigh(); 254 255 if (!cold && (howto & RB_DUMP)) 256 ibm4xx_dumpsys(); 257 258 doshutdownhooks(); 259 260 pmf_system_shutdown(boothowto); 261 262 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 263 /* Power off here if we know how...*/ 264 } 265 266 if (howto & RB_HALT) { 267 printf("halted\n\n"); 268 269 #if 0 270 goto reboot; /* XXX for now... */ 271 #endif 272 273 #ifdef DDB 274 printf("dropping to debugger\n"); 275 while(1) 276 Debugger(); 277 #endif 278 } 279 280 printf("rebooting\n\n"); 281 if (what && *what) { 282 if (strlen(what) > sizeof str - 5) 283 printf("boot string too large, ignored\n"); 284 else { 285 strcpy(str, what); 286 ap1 = ap = str + strlen(str); 287 *ap++ = ' '; 288 } 289 } 290 *ap++ = '-'; 291 if (howto & RB_SINGLE) 292 *ap++ = 's'; 293 if (howto & RB_KDB) 294 *ap++ = 'd'; 295 *ap++ = 0; 296 if (ap[-2] == '-') 297 *ap1 = 0; 298 299 /* flush cache for msgbuf */ 300 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 301 302 #if 0 303 reboot: 304 #endif 305 ppc4xx_reset(); 306 307 printf("ppc4xx_reset() failed!\n"); 308 #ifdef DDB 309 while(1) 310 Debugger(); 311 #else 312 while (1) 313 /* nothing */; 314 #endif 315 } 316 317 int 318 pci_bus_maxdevs(pci_chipset_tag_t pc, int busno) 319 { 320 321 /* 322 * Bus number is irrelevant. Configuration Mechanism 1 is in 323 * use, can have devices 0-32 (i.e. the `normal' range). 324 */ 325 return 31; 326 } 327 328 int 329 pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 330 { 331 /* 332 * We need to map the interrupt pin to the interrupt bit 333 * in the UIC associated with it. 334 * 335 * This platform has 4 PCI devices. 336 * 337 # External IRQ Mappings: 338 * dev 1 (Ext IRQ3): PCI Connector 339 * dev 2 (Ext IRQ4): PCI Connector 340 * dev 3 (Ext IRQ5): HPT IDE Controller 341 * dev 4 (Ext IRQ6): Davicom Ethernet 342 */ 343 static const int irqmap[4/*device*/][4/*pin*/] = { 344 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 345 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 346 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 347 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 348 }; 349 350 int pin, dev, irq; 351 352 pin = pa->pa_intrpin; 353 dev = pa->pa_device; 354 *ihp = -1; 355 356 /* if interrupt pin not used... */ 357 if (pin == 0) 358 return 1; 359 360 if (pin > 4) { 361 printf("pci_intr_map: bad interrupt pin %d\n", pin); 362 return 1; 363 } 364 365 if ((dev < 1) || (dev > 4)) { 366 printf("pci_intr_map: bad device %d\n", dev); 367 return 1; 368 } 369 370 371 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 372 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 373 dev, pin); 374 return 1; 375 } 376 377 *ihp = irq + 25; 378 return 0; 379 } 380 381 void 382 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 383 int swiz, int *iline) 384 { 385 386 static const int ilinemap[4/*device*/] = { 387 3, 4, 5 ,6 388 }; 389 390 if ((dev < 1) || (dev > 4)) { 391 printf("pci_intr_map: bad device %d\n", dev); 392 *iline = 0; 393 return; 394 } 395 *iline = ilinemap[dev - 1] + 25; 396 } 397
Indexes created Tue Sep 30 20:09:53 GMT 2025