obs266_machdep.c revision 1.5
1 /* $NetBSD: obs266_machdep.c,v 1.5 2006/10/16 18:14:35 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 1.5 2006/10/16 18:14:35 kiyohara 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 #define TLB_PG_SIZE (16*1024*1024) 102 103 /* 104 * Global variables used here and there 105 */ 106 char bootpath[256]; 107 108 extern paddr_t msgbuf_paddr; 109 110 #if NKSYMS || defined(DDB) || defined(LKM) 111 void *startsym, *endsym; 112 #endif 113 114 void initppc(u_int, u_int, char *, void *); 115 int lcsplx(int); 116 117 118 void 119 initppc(u_int startkernel, u_int endkernel, char *args, void *info_block) 120 { 121 vaddr_t va; 122 u_int memsize; 123 124 /* Disable all external interrupts */ 125 mtdcr(DCR_UIC0_ER, 0); 126 127 /* Setup board from OpenBIOS */ 128 openbios_board_init(info_block, startkernel); 129 memsize = openbios_board_memsize_get(); 130 131 /* Linear map whole physmem */ 132 for (va = 0; va < memsize; va += TLB_PG_SIZE) 133 ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); 134 135 /* Map console just after RAM */ 136 ppc4xx_tlb_reserve(OBS405_CONADDR, va, TLB_PG_SIZE, TLB_I | TLB_G); 137 138 /* Initialize IBM405GPr CPU */ 139 ibm40x_memsize_init(memsize, startkernel); 140 ibm4xx_init((void (*)(void))ext_intr); 141 142 /* 143 * Set the page size. 144 */ 145 uvm_setpagesize(); 146 147 /* 148 * Initialize pmap module. 149 */ 150 pmap_bootstrap(startkernel, endkernel); 151 152 #ifdef DEBUG 153 openbios_board_print(); 154 #endif 155 156 #if NKSYMS || defined(DDB) || defined(LKM) 157 ksyms_init((int)((u_int)endsym - (u_int)startsym), startsym, endsym); 158 #endif 159 #ifdef DDB 160 if (boothowto & RB_KDB) 161 Debugger(); 162 #endif 163 #ifdef IPKDB 164 /* 165 * Now trap to IPKDB 166 */ 167 ipkdb_init(); 168 if (boothowto & RB_KDB) 169 ipkdb_connect(0); 170 #endif 171 } 172 173 void 174 consinit(void) 175 { 176 177 obs405_consinit(OBS266_COM_FREQ); 178 } 179 180 int 181 lcsplx(int ipl) 182 { 183 184 return spllower(ipl); /* XXX */ 185 } 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 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 241 /* Power off here if we know how...*/ 242 } 243 244 if (howto & RB_HALT) { 245 printf("halted\n\n"); 246 247 #if 0 248 goto reboot; /* XXX for now... */ 249 #endif 250 251 #ifdef DDB 252 printf("dropping to debugger\n"); 253 while(1) 254 Debugger(); 255 #endif 256 } 257 258 printf("rebooting\n\n"); 259 if (what && *what) { 260 if (strlen(what) > sizeof str - 5) 261 printf("boot string too large, ignored\n"); 262 else { 263 strcpy(str, what); 264 ap1 = ap = str + strlen(str); 265 *ap++ = ' '; 266 } 267 } 268 *ap++ = '-'; 269 if (howto & RB_SINGLE) 270 *ap++ = 's'; 271 if (howto & RB_KDB) 272 *ap++ = 'd'; 273 *ap++ = 0; 274 if (ap[-2] == '-') 275 *ap1 = 0; 276 277 /* flush cache for msgbuf */ 278 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 279 280 #if 0 281 reboot: 282 #endif 283 ppc4xx_reset(); 284 285 printf("ppc4xx_reset() failed!\n"); 286 #ifdef DDB 287 while(1) 288 Debugger(); 289 #else 290 while (1) 291 /* nothing */; 292 #endif 293 } 294 295 int 296 pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 297 { 298 /* 299 * We need to map the interrupt pin to the interrupt bit 300 * in the UIC associated with it. 301 * 302 * This platform has 4 PCI devices. 303 * 304 # External IRQ Mappings: 305 * dev 1 (Ext IRQ3): PCI Connector 306 * dev 2 (Ext IRQ4): PCI Connector 307 * dev 3 (Ext IRQ5): HPT IDE Controller 308 * dev 4 (Ext IRQ6): Davicom Ethernet 309 */ 310 static const int irqmap[4/*device*/][4/*pin*/] = { 311 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 312 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 313 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 314 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 315 }; 316 317 int pin, dev, irq; 318 319 pin = pa->pa_intrpin; 320 dev = pa->pa_device; 321 *ihp = -1; 322 323 /* if interrupt pin not used... */ 324 if (pin == 0) 325 return 1; 326 327 if (pin > 4) { 328 printf("pci_intr_map: bad interrupt pin %d\n", pin); 329 return 1; 330 } 331 332 if ((dev < 1) || (dev > 4)) { 333 printf("pci_intr_map: bad device %d\n", dev); 334 return 1; 335 } 336 337 338 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 339 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 340 dev, pin); 341 return 1; 342 } 343 344 *ihp = irq + 25; 345 return 0; 346 } 347 348 void 349 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 350 int swiz, int *iline) 351 { 352 353 static const int ilinemap[4/*device*/] = { 354 3, 4, 5 ,6 355 }; 356 357 if ((dev < 1) || (dev > 4)) { 358 printf("pci_intr_map: bad device %d\n", dev); 359 *iline = 0; 360 return; 361 } 362 *iline = ilinemap[dev - 1] + 25; 363 } 364
Indexes created Tue Sep 30 11:09:46 GMT 2025