obs266_machdep.c revision 1.4
1 /* $NetBSD: obs266_machdep.c,v 1.4 2006/03/29 17:50:33 shige 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 1.4 2006/03/29 17:50:33 shige 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 84 #include <uvm/uvm.h> 85 #include <uvm/uvm_extern.h> 86 87 #include <machine/bus.h> 88 #include <machine/cpu.h> 89 #include <machine/obs266.h> 90 #include <powerpc/spr.h> 91 92 #include <dev/pci/pcivar.h> 93 #include <dev/pci/pciconf.h> 94 95 #include <powerpc/ibm4xx/dcr405gp.h> 96 #include <powerpc/ibm4xx/openbios.h> 97 98 #include "ksyms.h" 99 100 /* 101 * Global variables used here and there 102 */ 103 char bootpath[256]; 104 105 extern paddr_t msgbuf_paddr; 106 107 #if NKSYMS || defined(DDB) || defined(LKM) 108 void *startsym, *endsym; 109 #endif 110 111 void initppc(u_int, u_int, char *, void *); 112 int lcsplx(int); 113 114 115 void 116 initppc(u_int startkernel, u_int endkernel, char *args, void *info_block) 117 { 118 u_int memsize; 119 120 /* Disable all external interrupts */ 121 mtdcr(DCR_UIC0_ER, 0); 122 123 /* Setup board from OpenBIOS */ 124 openbios_board_init(info_block, startkernel); 125 memsize = openbios_board_memsize_get(); 126 127 /* Initialize IBM405GPr CPU */ 128 ibm40x_memsize_init(memsize, startkernel); 129 ibm4xx_init((void (*)(void))ext_intr); 130 131 /* 132 * Initialize console. 133 */ 134 consinit(); 135 136 /* 137 * Set the page size. 138 */ 139 uvm_setpagesize(); 140 141 /* 142 * Initialize pmap module. 143 */ 144 pmap_bootstrap(startkernel, endkernel); 145 146 #ifdef DEBUG 147 openbios_board_print(); 148 #endif 149 150 #if NKSYMS || defined(DDB) || defined(LKM) 151 ksyms_init((int)((u_int)endsym - (u_int)startsym), startsym, endsym); 152 #endif 153 #ifdef DDB 154 if (boothowto & RB_KDB) 155 Debugger(); 156 #endif 157 #ifdef IPKDB 158 /* 159 * Now trap to IPKDB 160 */ 161 ipkdb_init(); 162 if (boothowto & RB_KDB) 163 ipkdb_connect(0); 164 #endif 165 } 166 167 void 168 consinit(void) 169 { 170 171 obs405_consinit(OBS266_COM_FREQ); 172 } 173 174 int 175 lcsplx(int ipl) 176 { 177 178 return spllower(ipl); /* XXX */ 179 } 180 181 182 /* 183 * Machine dependent startup code. 184 */ 185 void 186 cpu_startup(void) 187 { 188 189 /* 190 * cpu common startup 191 */ 192 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 193 194 /* 195 * Set up the board properties database. 196 */ 197 openbios_board_info_set(); 198 199 /* 200 * Now that we have VM, malloc()s are OK in bus_space. 201 */ 202 bus_space_mallocok(); 203 204 /* 205 * no fake mapiodev 206 */ 207 fake_mapiodev = 0; 208 } 209 210 /* 211 * Halt or reboot the machine after syncing/dumping according to howto. 212 */ 213 void 214 cpu_reboot(int howto, char *what) 215 { 216 static int syncing; 217 static char str[256]; 218 char *ap = str, *ap1 = ap; 219 220 boothowto = howto; 221 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 222 syncing = 1; 223 vfs_shutdown(); /* sync */ 224 resettodr(); /* set wall clock */ 225 } 226 227 splhigh(); 228 229 if (!cold && (howto & RB_DUMP)) 230 ibm4xx_dumpsys(); 231 232 doshutdownhooks(); 233 234 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 235 /* Power off here if we know how...*/ 236 } 237 238 if (howto & RB_HALT) { 239 printf("halted\n\n"); 240 241 #if 0 242 goto reboot; /* XXX for now... */ 243 #endif 244 245 #ifdef DDB 246 printf("dropping to debugger\n"); 247 while(1) 248 Debugger(); 249 #endif 250 } 251 252 printf("rebooting\n\n"); 253 if (what && *what) { 254 if (strlen(what) > sizeof str - 5) 255 printf("boot string too large, ignored\n"); 256 else { 257 strcpy(str, what); 258 ap1 = ap = str + strlen(str); 259 *ap++ = ' '; 260 } 261 } 262 *ap++ = '-'; 263 if (howto & RB_SINGLE) 264 *ap++ = 's'; 265 if (howto & RB_KDB) 266 *ap++ = 'd'; 267 *ap++ = 0; 268 if (ap[-2] == '-') 269 *ap1 = 0; 270 271 /* flush cache for msgbuf */ 272 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 273 274 #if 0 275 reboot: 276 #endif 277 ppc4xx_reset(); 278 279 printf("ppc4xx_reset() failed!\n"); 280 #ifdef DDB 281 while(1) 282 Debugger(); 283 #else 284 while (1) 285 /* nothing */; 286 #endif 287 } 288 289 int 290 pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 291 { 292 /* 293 * We need to map the interrupt pin to the interrupt bit 294 * in the UIC associated with it. 295 * 296 * This platform has 4 PCI devices. 297 * 298 # External IRQ Mappings: 299 * dev 1 (Ext IRQ3): PCI Connector 300 * dev 2 (Ext IRQ4): PCI Connector 301 * dev 3 (Ext IRQ5): HPT IDE Controller 302 * dev 4 (Ext IRQ6): Davicom Ethernet 303 */ 304 static const int irqmap[4/*device*/][4/*pin*/] = { 305 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 306 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 307 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 308 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 309 }; 310 311 int pin, dev, irq; 312 313 pin = pa->pa_intrpin; 314 dev = pa->pa_device; 315 *ihp = -1; 316 317 /* if interrupt pin not used... */ 318 if (pin == 0) 319 return 1; 320 321 if (pin > 4) { 322 printf("pci_intr_map: bad interrupt pin %d\n", pin); 323 return 1; 324 } 325 326 if ((dev < 1) || (dev > 4)) { 327 printf("pci_intr_map: bad device %d\n", dev); 328 return 1; 329 } 330 331 332 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 333 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 334 dev, pin); 335 return 1; 336 } 337 338 *ihp = irq + 25; 339 return 0; 340 } 341 342 void 343 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 344 int swiz, int *iline) 345 { 346 347 static const int ilinemap[4/*device*/] = { 348 3, 4, 5 ,6 349 }; 350 351 if ((dev < 1) || (dev > 4)) { 352 printf("pci_intr_map: bad device %d\n", dev); 353 *iline = 0; 354 return; 355 } 356 *iline = ilinemap[dev - 1] + 25; 357 } 358
Indexes created Tue Sep 30 07:10:03 GMT 2025