1 /*- 2 * Copyright (c) 2000 Benno Rice <benno@jeamland.net> 3 * Copyright (c) 2000 Stephane Potvin <sepotvin@videotron.ca> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <stand.h> 32 #include "openfirm.h" 33 #include "libofw.h" 34 #include "bootstrap.h" 35 36 struct arch_switch archsw; /* MI/MD interface boundary */ 37 38 extern char end[]; 39 extern char bootprog_name[]; 40 extern char bootprog_rev[]; 41 extern char bootprog_date[]; 42 extern char bootprog_maker[]; 43 44 u_int32_t acells, scells; 45 46 static char bootargs[128]; 47 48 #define HEAP_SIZE 0x100000 49 50 #define OF_puts(fd, text) OF_write(fd, text, strlen(text)) 51 52 void 53 init_heap(void) 54 { 55 void *base; 56 ihandle_t stdout; 57 58 if ((base = ofw_alloc_heap(HEAP_SIZE)) == (void *)0xffffffff) { 59 OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)); 60 OF_puts(stdout, "Heap memory claim failed!\n"); 61 OF_enter(); 62 } 63 64 setheap(base, (void *)((int)base + HEAP_SIZE)); 65 } 66 67 uint64_t 68 memsize(void) 69 { 70 phandle_t memoryp; 71 cell_t reg[24]; 72 int i, sz; 73 u_int64_t memsz; 74 75 memsz = 0; 76 memoryp = OF_instance_to_package(memory); 77 78 sz = OF_getprop(memoryp, "reg", ®, sizeof(reg)); 79 sz /= sizeof(reg[0]); 80 81 for (i = 0; i < sz; i += (acells + scells)) { 82 if (scells > 1) 83 memsz += (uint64_t)reg[i + acells] << 32; 84 memsz += reg[i + acells + scells - 1]; 85 } 86 87 return (memsz); 88 } 89 90 int 91 main(int (*openfirm)(void *)) 92 { 93 phandle_t root; 94 int i; 95 char bootpath[64]; 96 char *ch; 97 int bargc; 98 char **bargv; 99 100 /* 101 * Initalise the Open Firmware routines by giving them the entry point. 102 */ 103 OF_init(openfirm); 104 105 root = OF_finddevice("/"); 106 107 scells = acells = 1; 108 OF_getprop(root, "#address-cells", &acells, sizeof(acells)); 109 OF_getprop(root, "#size-cells", &scells, sizeof(scells)); 110 111 /* 112 * Initialise the heap as early as possible. Once this is done, 113 * alloc() is usable. The stack is buried inside us, so this is 114 * safe. 115 */ 116 init_heap(); 117 118 /* 119 * Set up console. 120 */ 121 cons_probe(); 122 123 /* 124 * March through the device switch probing for things. 125 */ 126 for (i = 0; devsw[i] != NULL; i++) 127 if (devsw[i]->dv_init != NULL) 128 (devsw[i]->dv_init)(); 129 130 printf("\n"); 131 printf("%s, Revision %s\n", bootprog_name, bootprog_rev); 132 printf("(%s, %s)\n", bootprog_maker, bootprog_date); 133 printf("Memory: %lldKB\n", memsize() / 1024); 134 135 OF_getprop(chosen, "bootpath", bootpath, 64); 136 ch = strchr(bootpath, ':'); 137 *ch = '\0'; 138 printf("Booted from: %s\n", bootpath); 139 140 printf("\n"); 141 142 /* 143 * Only parse the first bootarg if present. It should 144 * be simple to handle extra arguments 145 */ 146 OF_getprop(chosen, "bootargs", bootargs, sizeof(bootargs)); 147 bargc = 0; 148 parse(&bargc, &bargv, bootargs); 149 if (bargc == 1) 150 env_setenv("currdev", EV_VOLATILE, bargv[0], ofw_setcurrdev, 151 env_nounset); 152 else 153 env_setenv("currdev", EV_VOLATILE, bootpath, 154 ofw_setcurrdev, env_nounset); 155 env_setenv("loaddev", EV_VOLATILE, bootpath, env_noset, 156 env_nounset); 157 setenv("LINES", "24", 1); /* optional */ 158 159 archsw.arch_getdev = ofw_getdev; 160 archsw.arch_copyin = ofw_copyin; 161 archsw.arch_copyout = ofw_copyout; 162 archsw.arch_readin = ofw_readin; 163 archsw.arch_autoload = ofw_autoload; 164 165 interact(NULL); /* doesn't return */ 166 167 OF_exit(); 168 169 return 0; 170 } 171 172 COMMAND_SET(halt, "halt", "halt the system", command_halt); 173 174 static int 175 command_halt(int argc, char *argv[]) 176 { 177 178 OF_exit(); 179 return (CMD_OK); 180 } 181 182 COMMAND_SET(memmap, "memmap", "print memory map", command_memmap); 183 184 int 185 command_memmap(int argc, char **argv) 186 { 187 188 ofw_memmap(acells); 189 return (CMD_OK); 190 } 191