obs266_machdep.c revision 1.6
1 /* $NetBSD: obs266_machdep.c,v 1.6 2006/11/29 19:56:47 freza 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 1.6 2006/11/29 19:56:47 freza 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 kernel memory */ 132 for (va = 0; va < endkernel; va += TLB_PG_SIZE) 133 ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); 134 135 /* Map console after RAM (see pmap_tlbmiss()) */ 136 ppc4xx_tlb_reserve(OBS405_CONADDR, roundup(memsize, TLB_PG_SIZE), 137 TLB_PG_SIZE, TLB_I | TLB_G); 138 139 /* Initialize IBM405GPr CPU */ 140 ibm40x_memsize_init(memsize, startkernel); 141 ibm4xx_init((void (*)(void))ext_intr); 142 143 /* 144 * Set the page size. 145 */ 146 uvm_setpagesize(); 147 148 /* 149 * Initialize pmap module. 150 */ 151 pmap_bootstrap(startkernel, endkernel); 152 153 #ifdef DEBUG 154 openbios_board_print(); 155 #endif 156 157 #if NKSYMS || defined(DDB) || defined(LKM) 158 ksyms_init((int)((u_int)endsym - (u_int)startsym), startsym, endsym); 159 #endif 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 void 175 consinit(void) 176 { 177 178 obs405_consinit(OBS266_COM_FREQ); 179 } 180 181 int 182 lcsplx(int ipl) 183 { 184 185 return spllower(ipl); /* XXX */ 186 } 187 188 189 /* 190 * Machine dependent startup code. 191 */ 192 void 193 cpu_startup(void) 194 { 195 196 /* 197 * cpu common startup 198 */ 199 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 200 201 /* 202 * Set up the board properties database. 203 */ 204 openbios_board_info_set(); 205 206 /* 207 * Now that we have VM, malloc()s are OK in bus_space. 208 */ 209 bus_space_mallocok(); 210 211 /* 212 * no fake mapiodev 213 */ 214 fake_mapiodev = 0; 215 } 216 217 /* 218 * Halt or reboot the machine after syncing/dumping according to howto. 219 */ 220 void 221 cpu_reboot(int howto, char *what) 222 { 223 static int syncing; 224 static char str[256]; 225 char *ap = str, *ap1 = ap; 226 227 boothowto = howto; 228 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 229 syncing = 1; 230 vfs_shutdown(); /* sync */ 231 resettodr(); /* set wall clock */ 232 } 233 234 splhigh(); 235 236 if (!cold && (howto & RB_DUMP)) 237 ibm4xx_dumpsys(); 238 239 doshutdownhooks(); 240 241 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 242 /* Power off here if we know how...*/ 243 } 244 245 if (howto & RB_HALT) { 246 printf("halted\n\n"); 247 248 #if 0 249 goto reboot; /* XXX for now... */ 250 #endif 251 252 #ifdef DDB 253 printf("dropping to debugger\n"); 254 while(1) 255 Debugger(); 256 #endif 257 } 258 259 printf("rebooting\n\n"); 260 if (what && *what) { 261 if (strlen(what) > sizeof str - 5) 262 printf("boot string too large, ignored\n"); 263 else { 264 strcpy(str, what); 265 ap1 = ap = str + strlen(str); 266 *ap++ = ' '; 267 } 268 } 269 *ap++ = '-'; 270 if (howto & RB_SINGLE) 271 *ap++ = 's'; 272 if (howto & RB_KDB) 273 *ap++ = 'd'; 274 *ap++ = 0; 275 if (ap[-2] == '-') 276 *ap1 = 0; 277 278 /* flush cache for msgbuf */ 279 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 280 281 #if 0 282 reboot: 283 #endif 284 ppc4xx_reset(); 285 286 printf("ppc4xx_reset() failed!\n"); 287 #ifdef DDB 288 while(1) 289 Debugger(); 290 #else 291 while (1) 292 /* nothing */; 293 #endif 294 } 295 296 int 297 pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 298 { 299 /* 300 * We need to map the interrupt pin to the interrupt bit 301 * in the UIC associated with it. 302 * 303 * This platform has 4 PCI devices. 304 * 305 # External IRQ Mappings: 306 * dev 1 (Ext IRQ3): PCI Connector 307 * dev 2 (Ext IRQ4): PCI Connector 308 * dev 3 (Ext IRQ5): HPT IDE Controller 309 * dev 4 (Ext IRQ6): Davicom Ethernet 310 */ 311 static const int irqmap[4/*device*/][4/*pin*/] = { 312 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 313 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 314 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 315 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 316 }; 317 318 int pin, dev, irq; 319 320 pin = pa->pa_intrpin; 321 dev = pa->pa_device; 322 *ihp = -1; 323 324 /* if interrupt pin not used... */ 325 if (pin == 0) 326 return 1; 327 328 if (pin > 4) { 329 printf("pci_intr_map: bad interrupt pin %d\n", pin); 330 return 1; 331 } 332 333 if ((dev < 1) || (dev > 4)) { 334 printf("pci_intr_map: bad device %d\n", dev); 335 return 1; 336 } 337 338 339 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 340 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 341 dev, pin); 342 return 1; 343 } 344 345 *ihp = irq + 25; 346 return 0; 347 } 348 349 void 350 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 351 int swiz, int *iline) 352 { 353 354 static const int ilinemap[4/*device*/] = { 355 3, 4, 5 ,6 356 }; 357 358 if ((dev < 1) || (dev > 4)) { 359 printf("pci_intr_map: bad device %d\n", dev); 360 *iline = 0; 361 return; 362 } 363 *iline = ilinemap[dev - 1] + 25; 364 } 365
Indexes created Tue Sep 30 07:10:03 GMT 2025