obs266_machdep.c revision 1.15.2.1
1 /* $NetBSD: obs266_machdep.c,v 1.15.2.1 2011/06/23 14:19:09 cherry 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 1.15.2.1 2011/06/23 14:19:09 cherry Exp $"); 72 73 #include "opt_compat_netbsd.h" 74 #include "opt_ddb.h" 75 #include "opt_ipkdb.h" 76 77 #include <sys/param.h> 78 #include <sys/kernel.h> 79 #include <sys/ksyms.h> 80 #include <sys/mount.h> 81 #include <sys/reboot.h> 82 #include <sys/systm.h> 83 #include <sys/device.h> 84 #include <sys/module.h> 85 #include <sys/bus.h> 86 #include <sys/cpu.h> 87 88 #include <uvm/uvm_extern.h> 89 90 #include <machine/obs266.h> 91 92 #include <powerpc/ibm4xx/dcr4xx.h> 93 #include <powerpc/ibm4xx/cpu.h> 94 #include <powerpc/ibm4xx/dev/comopbvar.h> 95 #include <powerpc/ibm4xx/ibm405gp.h> 96 #include <powerpc/ibm4xx/openbios.h> 97 98 #include <powerpc/spr.h> 99 #include <powerpc/ibm4xx/spr.h> 100 101 #include <dev/ic/comreg.h> 102 #include <dev/pci/pcivar.h> 103 #include <dev/pci/pciconf.h> 104 105 #include "ksyms.h" 106 107 #include "com.h" 108 #if (NCOM > 0) 109 #include <sys/termios.h> 110 111 #ifndef CONADDR 112 #define CONADDR IBM405GP_UART0_BASE 113 #endif 114 #ifndef CONSPEED 115 #define CONSPEED B9600 116 #endif 117 #ifndef CONMODE 118 /* 8N1 */ 119 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) 120 #endif 121 #endif /* NCOM */ 122 123 #define TLB_PG_SIZE (16*1024*1024) 124 125 /* 126 * Global variables used here and there 127 */ 128 char bootpath[256]; 129 130 extern paddr_t msgbuf_paddr; 131 132 void initppc(vaddr_t, vaddr_t, char *, void *); 133 134 void 135 initppc(vaddr_t startkernel, vaddr_t endkernel, char *args, void *info_block) 136 { 137 vaddr_t va; 138 u_int memsize; 139 140 /* Setup board from OpenBIOS */ 141 openbios_board_init(info_block, startkernel); 142 memsize = openbios_board_memsize_get(); 143 144 /* Linear map kernel memory */ 145 for (va = 0; va < endkernel; va += TLB_PG_SIZE) 146 ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); 147 148 /* Map console after RAM (see pmap_tlbmiss()) */ 149 ppc4xx_tlb_reserve(CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE, 150 TLB_I | TLB_G); 151 152 /* Initialize IBM405GPr CPU */ 153 ibm40x_memsize_init(memsize, startkernel); 154 ibm4xx_init(startkernel, endkernel, pic_ext_intr); 155 156 #ifdef DEBUG 157 openbios_board_print(); 158 #endif 159 160 #ifdef DDB 161 if (boothowto & RB_KDB) 162 Debugger(); 163 #endif 164 #ifdef IPKDB 165 /* 166 * Now trap to IPKDB 167 */ 168 ipkdb_init(); 169 if (boothowto & RB_KDB) 170 ipkdb_connect(0); 171 #endif 172 173 /* 174 * Look for the ibm4xx modules in the right place. 175 */ 176 module_machine = module_machine_ibm4xx; 177 } 178 179 void 180 consinit(void) 181 { 182 183 #if (NCOM > 0) 184 com_opb_cnattach(OBS266_COM_FREQ, CONADDR, CONSPEED, CONMODE); 185 #endif 186 } 187 188 /* 189 * Machine dependent startup code. 190 */ 191 void 192 cpu_startup(void) 193 { 194 195 /* 196 * cpu common startup 197 */ 198 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 199 200 /* 201 * Set up the board properties database. 202 */ 203 openbios_board_info_set(); 204 205 /* 206 * Now that we have VM, malloc()s are OK in bus_space. 207 */ 208 bus_space_mallocok(); 209 210 /* 211 * no fake mapiodev 212 */ 213 fake_mapiodev = 0; 214 } 215 216 /* 217 * Halt or reboot the machine after syncing/dumping according to howto. 218 */ 219 void 220 cpu_reboot(int howto, char *what) 221 { 222 static int syncing; 223 static char str[256]; 224 char *ap = str, *ap1 = ap; 225 226 boothowto = howto; 227 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 228 syncing = 1; 229 vfs_shutdown(); /* sync */ 230 resettodr(); /* set wall clock */ 231 } 232 233 splhigh(); 234 235 if (!cold && (howto & RB_DUMP)) 236 ibm4xx_dumpsys(); 237 238 doshutdownhooks(); 239 240 pmf_system_shutdown(boothowto); 241 242 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 243 /* Power off here if we know how...*/ 244 } 245 246 if (howto & RB_HALT) { 247 printf("halted\n\n"); 248 249 #if 0 250 goto reboot; /* XXX for now... */ 251 #endif 252 253 #ifdef DDB 254 printf("dropping to debugger\n"); 255 while(1) 256 Debugger(); 257 #endif 258 } 259 260 printf("rebooting\n\n"); 261 if (what && *what) { 262 if (strlen(what) > sizeof str - 5) 263 printf("boot string too large, ignored\n"); 264 else { 265 strcpy(str, what); 266 ap1 = ap = str + strlen(str); 267 *ap++ = ' '; 268 } 269 } 270 *ap++ = '-'; 271 if (howto & RB_SINGLE) 272 *ap++ = 's'; 273 if (howto & RB_KDB) 274 *ap++ = 'd'; 275 *ap++ = 0; 276 if (ap[-2] == '-') 277 *ap1 = 0; 278 279 /* flush cache for msgbuf */ 280 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 281 282 #if 0 283 reboot: 284 #endif 285 ppc4xx_reset(); 286 287 printf("ppc4xx_reset() failed!\n"); 288 #ifdef DDB 289 while(1) 290 Debugger(); 291 #else 292 while (1) 293 /* nothing */; 294 #endif 295 } 296 297 int 298 pci_bus_maxdevs(pci_chipset_tag_t pc, int busno) 299 { 300 301 /* 302 * Bus number is irrelevant. Configuration Mechanism 1 is in 303 * use, can have devices 0-32 (i.e. the `normal' range). 304 */ 305 return 31; 306 } 307 308 int 309 pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) 310 { 311 /* 312 * We need to map the interrupt pin to the interrupt bit 313 * in the UIC associated with it. 314 * 315 * This platform has 4 PCI devices. 316 * 317 # External IRQ Mappings: 318 * dev 1 (Ext IRQ3): PCI Connector 319 * dev 2 (Ext IRQ4): PCI Connector 320 * dev 3 (Ext IRQ5): HPT IDE Controller 321 * dev 4 (Ext IRQ6): Davicom Ethernet 322 */ 323 static const int irqmap[4/*device*/][4/*pin*/] = { 324 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 325 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 326 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 327 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 328 }; 329 330 int pin, dev, irq; 331 332 pin = pa->pa_intrpin; 333 dev = pa->pa_device; 334 *ihp = -1; 335 336 /* if interrupt pin not used... */ 337 if (pin == 0) 338 return 1; 339 340 if (pin > 4) { 341 printf("pci_intr_map: bad interrupt pin %d\n", pin); 342 return 1; 343 } 344 345 if ((dev < 1) || (dev > 4)) { 346 printf("pci_intr_map: bad device %d\n", dev); 347 return 1; 348 } 349 350 351 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 352 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 353 dev, pin); 354 return 1; 355 } 356 357 *ihp = irq + 25; 358 return 0; 359 } 360 361 void 362 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 363 int swiz, int *iline) 364 { 365 366 static const int ilinemap[4/*device*/] = { 367 3, 4, 5 ,6 368 }; 369 370 if ((dev < 1) || (dev > 4)) { 371 printf("pci_intr_map: bad device %d\n", dev); 372 *iline = 0; 373 return; 374 } 375 *iline = ilinemap[dev - 1] + 25; 376 } 377
Indexes created Sun Oct 19 02:09:48 GMT 2025