obs266_machdep.c revision 1.21
1 /* $NetBSD: obs266_machdep.c,v 1.21 2018/07/15 05:16:42 maxv 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 1.21 2018/07/15 05:16:42 maxv Exp $"); 72 73 #include "opt_compat_netbsd.h" 74 #include "opt_ddb.h" 75 76 #include <sys/param.h> 77 #include <sys/kernel.h> 78 #include <sys/ksyms.h> 79 #include <sys/mount.h> 80 #include <sys/reboot.h> 81 #include <sys/systm.h> 82 #include <sys/device.h> 83 #include <sys/module.h> 84 #include <sys/bus.h> 85 #include <sys/cpu.h> 86 87 #include <uvm/uvm_extern.h> 88 89 #include <machine/obs266.h> 90 91 #include <powerpc/ibm4xx/dcr4xx.h> 92 #include <powerpc/ibm4xx/cpu.h> 93 #include <powerpc/ibm4xx/ibm405gp.h> 94 #include <powerpc/ibm4xx/pci_machdep.h> 95 #include <powerpc/ibm4xx/openbios.h> 96 #include <powerpc/ibm4xx/dev/comopbvar.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 164 165 /* 166 * Look for the ibm4xx modules in the right place. 167 */ 168 module_machine = module_machine_ibm4xx; 169 } 170 171 void 172 consinit(void) 173 { 174 175 #if (NCOM > 0) 176 com_opb_cnattach(OBS266_COM_FREQ, CONADDR, CONSPEED, CONMODE); 177 #endif 178 } 179 180 /* 181 * Machine dependent startup code. 182 */ 183 void 184 cpu_startup(void) 185 { 186 187 /* 188 * cpu common startup 189 */ 190 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 191 192 /* 193 * Set up the board properties database. 194 */ 195 openbios_board_info_set(); 196 197 /* 198 * Now that we have VM, malloc()s are OK in bus_space. 199 */ 200 bus_space_mallocok(); 201 202 /* 203 * no fake mapiodev 204 */ 205 fake_mapiodev = 0; 206 } 207 208 /* 209 * Halt or reboot the machine after syncing/dumping according to howto. 210 */ 211 void 212 cpu_reboot(int howto, char *what) 213 { 214 static int syncing; 215 static char str[256]; 216 char *ap = str, *ap1 = ap; 217 218 boothowto = howto; 219 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 220 syncing = 1; 221 vfs_shutdown(); /* sync */ 222 resettodr(); /* set wall clock */ 223 } 224 225 splhigh(); 226 227 if (!cold && (howto & RB_DUMP)) 228 ibm4xx_dumpsys(); 229 230 doshutdownhooks(); 231 232 pmf_system_shutdown(boothowto); 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 ibm4xx_pci_bus_maxdevs(void *v, int busno) 291 { 292 293 /* 294 * Bus number is irrelevant. Configuration Mechanism 1 is in 295 * use, can have devices 0-32 (i.e. the `normal' range). 296 */ 297 return 31; 298 } 299 300 int 301 ibm4xx_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) 302 { 303 /* 304 * We need to map the interrupt pin to the interrupt bit 305 * in the UIC associated with it. 306 * 307 * This platform has 4 PCI devices. 308 * 309 # External IRQ Mappings: 310 * dev 1 (Ext IRQ3): PCI Connector 311 * dev 2 (Ext IRQ4): PCI Connector 312 * dev 3 (Ext IRQ5): HPT IDE Controller 313 * dev 4 (Ext IRQ6): Davicom Ethernet 314 */ 315 static const int irqmap[4/*device*/][4/*pin*/] = { 316 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 317 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 318 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 319 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 320 }; 321 322 int pin, dev, irq; 323 324 pin = pa->pa_intrpin; 325 dev = pa->pa_device; 326 *ihp = -1; 327 328 /* if interrupt pin not used... */ 329 if (pin == 0) 330 return 1; 331 332 if (pin > 4) { 333 printf("pci_intr_map: bad interrupt pin %d\n", pin); 334 return 1; 335 } 336 337 if ((dev < 1) || (dev > 4)) { 338 printf("pci_intr_map: bad device %d\n", dev); 339 return 1; 340 } 341 342 343 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 344 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 345 dev, pin); 346 return 1; 347 } 348 349 *ihp = irq + 25; 350 return 0; 351 } 352 353 void 354 ibm4xx_pci_conf_interrupt(void *v, int bus, int dev, int pin, int swiz, 355 int *iline) 356 { 357 358 static const int ilinemap[4/*device*/] = { 359 28, 29, 30, 31 360 }; 361 362 if ((dev < 1) || (dev > 4)) { 363 printf("%s: bad device %d\n", __func__, dev); 364 *iline = 0; 365 return; 366 } 367 *iline = ilinemap[dev - 1]; 368 } 369
Indexes created Sun Oct 19 02:09:48 GMT 2025