1 /* $NetBSD: obs266_machdep.c,v 1.27 2021/08/03 09:25:44 rin 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 1.27 2021/08/03 09:25:44 rin Exp $"); 72 73 #include "opt_ddb.h" 74 75 #include <sys/param.h> 76 #include <sys/bus.h> 77 #include <sys/device.h> 78 #include <sys/kernel.h> 79 #include <sys/module.h> 80 #include <sys/reboot.h> 81 #include <sys/systm.h> 82 83 #include <machine/obs266.h> 84 85 #include <powerpc/spr.h> 86 #include <powerpc/ibm4xx/spr.h> 87 88 #include <powerpc/ibm4xx/cpu.h> 89 #include <powerpc/ibm4xx/dcr4xx.h> 90 #include <powerpc/ibm4xx/ibm405gp.h> 91 #include <powerpc/ibm4xx/openbios.h> 92 #include <powerpc/ibm4xx/tlb.h> 93 94 #include <powerpc/ibm4xx/pci_machdep.h> 95 #include <dev/pci/pciconf.h> 96 #include <dev/pci/pcivar.h> 97 98 #include "com.h" 99 #if (NCOM > 0) 100 #include <sys/termios.h> 101 #include <powerpc/ibm4xx/dev/comopbvar.h> 102 #include <dev/ic/comreg.h> 103 104 #ifndef CONADDR 105 #define CONADDR IBM405GP_UART0_BASE 106 #endif 107 #ifndef CONSPEED 108 #define CONSPEED B9600 109 #endif 110 #ifndef CONMODE 111 /* 8N1 */ 112 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) 113 #endif 114 #endif /* NCOM */ 115 116 #define TLB_PG_SIZE (16*1024*1024) 117 118 void initppc(vaddr_t, vaddr_t, char *, void *); 119 120 void 121 initppc(vaddr_t startkernel, vaddr_t endkernel, char *args, void *info_block) 122 { 123 vaddr_t va; 124 u_int memsize; 125 126 /* Setup board from OpenBIOS */ 127 openbios_board_init(info_block); 128 memsize = openbios_board_memsize_get(); 129 130 /* Linear map kernel memory */ 131 for (va = 0; va < endkernel; va += TLB_PG_SIZE) 132 ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); 133 134 /* Map console after RAM (see pmap_tlbmiss()) */ 135 ppc4xx_tlb_reserve(CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE, 136 TLB_I | TLB_G); 137 138 /* Initialize IBM405GPr CPU */ 139 ibm40x_memsize_init(memsize, startkernel); 140 ibm4xx_init(startkernel, endkernel, pic_ext_intr); 141 142 #ifdef DEBUG 143 openbios_board_print(); 144 #endif 145 146 #ifdef DDB 147 if (boothowto & RB_KDB) 148 Debugger(); 149 #endif 150 } 151 152 void 153 consinit(void) 154 { 155 156 #if (NCOM > 0) 157 com_opb_cnattach(OBS266_COM_FREQ, CONADDR, CONSPEED, CONMODE); 158 #endif 159 } 160 161 /* 162 * Machine dependent startup code. 163 */ 164 void 165 cpu_startup(void) 166 { 167 168 /* 169 * cpu common startup 170 */ 171 ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); 172 173 /* 174 * Set up the board properties database. 175 */ 176 openbios_board_info_set(); 177 178 /* 179 * Now that we have VM, malloc()s are OK in bus_space. 180 */ 181 bus_space_mallocok(); 182 183 /* 184 * no fake mapiodev 185 */ 186 fake_mapiodev = 0; 187 } 188 189 int 190 ibm4xx_pci_bus_maxdevs(void *v, int busno) 191 { 192 193 /* 194 * Bus number is irrelevant. Configuration Mechanism 1 is in 195 * use, can have devices 0-32 (i.e. the `normal' range). 196 */ 197 return 31; 198 } 199 200 int 201 ibm4xx_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) 202 { 203 /* 204 * We need to map the interrupt pin to the interrupt bit 205 * in the UIC associated with it. 206 * 207 * This platform has 4 PCI devices. 208 * 209 # External IRQ Mappings: 210 * dev 1 (Ext IRQ3): PCI Connector 211 * dev 2 (Ext IRQ4): PCI Connector 212 * dev 3 (Ext IRQ5): HPT IDE Controller 213 * dev 4 (Ext IRQ6): Davicom Ethernet 214 */ 215 static const int irqmap[4/*device*/][4/*pin*/] = { 216 { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ 217 { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ 218 { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ 219 { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ 220 }; 221 222 int pin, dev, irq; 223 224 pin = pa->pa_intrpin; 225 dev = pa->pa_device; 226 *ihp = -1; 227 228 /* if interrupt pin not used... */ 229 if (pin == 0) 230 return 1; 231 232 if (pin > 4) { 233 printf("pci_intr_map: bad interrupt pin %d\n", pin); 234 return 1; 235 } 236 237 if ((dev < 1) || (dev > 4)) { 238 printf("pci_intr_map: bad device %d\n", dev); 239 return 1; 240 } 241 242 243 if ((irq = irqmap[dev - 1][pin - 1]) == -1) { 244 printf("pci_intr_map: no IRQ routing for device %d pin %d\n", 245 dev, pin); 246 return 1; 247 } 248 249 *ihp = irq + 25; 250 return 0; 251 } 252 253 void 254 ibm4xx_pci_conf_interrupt(void *v, int bus, int dev, int pin, int swiz, 255 int *iline) 256 { 257 258 static const int ilinemap[4/*device*/] = { 259 28, 29, 30, 31 260 }; 261 262 if ((dev < 1) || (dev > 4)) { 263 printf("%s: bad device %d\n", __func__, dev); 264 *iline = 0; 265 return; 266 } 267 *iline = ilinemap[dev - 1]; 268 } 269
Indexes created Thu Sep 25 15:09:46 GMT 2025