obs266_machdep.c revision 1.3
1 /* $NetBSD: obs266_machdep.c,v 1.3 2006/03/13 16:20:58 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 1.3 2006/03/13 16:20:58 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 <powerpc/ibm4xx/dcr405gp.h> 93 #include <powerpc/ibm4xx/openbios.h> 94 95 #include "ksyms.h" 96 97 /* 98 * Global variables used here and there 99 */ 100 char bootpath[256]; 101 102 extern paddr_t msgbuf_paddr; 103 104 #if NKSYMS || defined(DDB) || defined(LKM) 105 void *startsym, *endsym; 106 #endif 107 108 void initppc(u_int, u_int, char *, void *); 109 int lcsplx(int); 110 111 112 void 113 initppc(u_int startkernel, u_int endkernel, char *args, void *info_block) 114 { 115 u_int memsize; 116 117 /* Disable all external interrupts */ 118 mtdcr(DCR_UIC0_ER, 0); 119 120 /* Setup board from OpenBIOS */ 121 openbios_board_init(info_block, startkernel); 122 memsize = openbios_board_memsize_get(); 123 124 /* Initialize IBM405GPr CPU */ 125 ibm40x_memsize_init(memsize, startkernel); 126 ibm4xx_init((void (*)(void))ext_intr); 127 128 /* 129 * Initialize console. 130 */ 131 consinit(); 132 133 /* 134 * Set the page size. 135 */ 136 uvm_setpagesize(); 137 138 /* 139 * Initialize pmap module. 140 */ 141 pmap_bootstrap(startkernel, endkernel); 142 143 #ifdef DEBUG 144 openbios_board_print(); 145 #endif 146 147 #if NKSYMS || defined(DDB) || defined(LKM) 148 ksyms_init((int)((u_int)endsym - (u_int)startsym), startsym, endsym); 149 #endif 150 #ifdef DDB 151 if (boothowto & RB_KDB) 152 Debugger(); 153 #endif 154 #ifdef IPKDB 155 /* 156 * Now trap to IPKDB 157 */ 158 ipkdb_init(); 159 if (boothowto & RB_KDB) 160 ipkdb_connect(0); 161 #endif 162 } 163 164 void 165 consinit(void) 166 { 167 168 obs405_consinit(OBS266_COM_FREQ); 169 } 170 171 int 172 lcsplx(int ipl) 173 { 174 175 return spllower(ipl); /* XXX */ 176 } 177 178 179 /* 180 * Machine dependent startup code. 181 */ 182 void 183 cpu_startup(void) 184 { 185 186 /* 187 * cpu common startup 188 */ 189 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 190 191 /* 192 * Set up the board properties database. 193 */ 194 openbios_board_info_set(); 195 196 /* 197 * Now that we have VM, malloc()s are OK in bus_space. 198 */ 199 bus_space_mallocok(); 200 201 /* 202 * no fake mapiodev 203 */ 204 fake_mapiodev = 0; 205 } 206 207 /* 208 * Halt or reboot the machine after syncing/dumping according to howto. 209 */ 210 void 211 cpu_reboot(int howto, char *what) 212 { 213 static int syncing; 214 static char str[256]; 215 char *ap = str, *ap1 = ap; 216 217 boothowto = howto; 218 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 219 syncing = 1; 220 vfs_shutdown(); /* sync */ 221 resettodr(); /* set wall clock */ 222 } 223 224 splhigh(); 225 226 if (!cold && (howto & RB_DUMP)) 227 ibm4xx_dumpsys(); 228 229 doshutdownhooks(); 230 231 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 232 /* Power off here if we know how...*/ 233 } 234 235 if (howto & RB_HALT) { 236 printf("halted\n\n"); 237 238 #if 0 239 goto reboot; /* XXX for now... */ 240 #endif 241 242 #ifdef DDB 243 printf("dropping to debugger\n"); 244 while(1) 245 Debugger(); 246 #endif 247 } 248 249 printf("rebooting\n\n"); 250 if (what && *what) { 251 if (strlen(what) > sizeof str - 5) 252 printf("boot string too large, ignored\n"); 253 else { 254 strcpy(str, what); 255 ap1 = ap = str + strlen(str); 256 *ap++ = ' '; 257 } 258 } 259 *ap++ = '-'; 260 if (howto & RB_SINGLE) 261 *ap++ = 's'; 262 if (howto & RB_KDB) 263 *ap++ = 'd'; 264 *ap++ = 0; 265 if (ap[-2] == '-') 266 *ap1 = 0; 267 268 /* flush cache for msgbuf */ 269 __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); 270 271 #if 0 272 reboot: 273 #endif 274 ppc4xx_reset(); 275 276 printf("ppc4xx_reset() failed!\n"); 277 #ifdef DDB 278 while(1) 279 Debugger(); 280 #else 281 while (1) 282 /* nothing */; 283 #endif 284 } 285
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