main.c revision 177152
1/*- 2 * Copyright (c) 2000 Benno Rice <benno@jeamland.net> 3 * Copyright (c) 2000 Stephane Potvin <sepotvin@videotron.ca> 4 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD: head/sys/boot/uboot/common/main.c 177152 2008-03-13 17:54:21Z obrien $"); 31 32#include <stand.h> 33 34#include "api_public.h" 35#include "bootstrap.h" 36#include "glue.h" 37#include "libuboot.h" 38 39struct uboot_devdesc currdev; 40struct arch_switch archsw; /* MI/MD interface boundary */ 41int devs_no; 42 43extern char end[]; 44extern char bootprog_name[]; 45extern char bootprog_rev[]; 46extern char bootprog_date[]; 47extern char bootprog_maker[]; 48 49static char bootargs[128]; 50 51extern unsigned char _etext[]; 52extern unsigned char _edata[]; 53extern unsigned char __bss_start[]; 54extern unsigned char __sbss_start[]; 55extern unsigned char __sbss_end[]; 56extern unsigned char _end[]; 57 58void dump_si(struct sys_info *si) 59{ 60#ifdef DEBUG 61 printf("sys info:\n"); 62 printf(" clkbus\t= 0x%08x\n", si->clk_bus); 63 printf(" clkcpu\t= 0x%08x\n", si->clk_cpu); 64 printf(" bar\t\t= 0x%08x\n", si->bar); 65#endif 66} 67 68static void dump_sig(struct api_signature *sig) 69{ 70#ifdef DEBUG 71 printf("signature:\n"); 72 printf(" version\t= %d\n", sig->version); 73 printf(" checksum\t= 0x%08x\n", sig->checksum); 74 printf(" sc entry\t= 0x%08x\n", sig->syscall); 75#endif 76} 77static void 78dump_addr_info(void) 79{ 80#ifdef DEBUG 81 printf("\naddresses info:\n"); 82 printf(" _etext (sdata) = 0x%08x\n", (u_int32_t)_etext); 83 printf(" _edata = 0x%08x\n", (u_int32_t)_edata); 84 printf(" __sbss_start = 0x%08x\n", (u_int32_t)__sbss_start); 85 printf(" __sbss_end = 0x%08x\n", (u_int32_t)__sbss_end); 86 printf(" __sbss_start = 0x%08x\n", (u_int32_t)__bss_start); 87 printf(" _end = 0x%08x\n", (u_int32_t)_end); 88 printf(" syscall entry = 0x%08x\n", (u_int32_t)syscall_ptr); 89#endif 90} 91 92static uint64_t 93memsize(int flags) 94{ 95 int i; 96 struct sys_info *si; 97 uint64_t size; 98 99 if ((si = ub_get_sys_info()) == NULL) 100 return 0; 101 102 size = 0; 103 for (i = 0; i < si->mr_no; i++) 104 if (si->mr[i].flags == flags && si->mr[i].size) 105 size += (si->mr[i].size); 106 107 return (size); 108} 109 110int 111main(void) 112{ 113 char **bargv; 114 char *ch; 115 int bargc, i; 116 struct api_signature *sig = NULL; 117 118 if (!api_search_sig(&sig)) 119 return -1; 120 121 syscall_ptr = sig->syscall; 122 if (syscall_ptr == NULL) 123 return -2; 124 125 if (sig->version > API_SIG_VERSION) 126 return -3; 127 128 /* Clear BSS sections */ 129 bzero(__sbss_start, __sbss_end - __sbss_start); 130 bzero(__bss_start, _end - __bss_start); 131 132 /* 133 * Set up console. 134 */ 135 cons_probe(); 136 137 printf("Compatible API signature found @%x\n", sig); 138 139 dump_sig(sig); 140 dump_addr_info(); 141 142 /* 143 * Initialise the heap as early as possible. Once this is done, 144 * alloc() is usable. The stack is buried inside us, so this is 145 * safe. 146 */ 147 setheap((void *)end, (void *)(end + 512 * 1024)); 148 149 /* 150 * Enumerate U-Boot devices 151 */ 152 if ((devs_no = ub_dev_enum()) == 0) 153 panic("no devices found"); 154 printf("Number of U-Boot devices found %d\n", devs_no); 155 156 /* XXX all our dv_init()s currently don't do anything... */ 157 /* 158 * March through the device switch probing for things. 159 */ 160 for (i = 0; devsw[i] != NULL; i++) 161 if (devsw[i]->dv_init != NULL) 162 (devsw[i]->dv_init)(); 163 164 printf("\n"); 165 printf("%s, Revision %s\n", bootprog_name, bootprog_rev); 166 printf("(%s, %s)\n", bootprog_maker, bootprog_date); 167 printf("Memory: %lldMB\n", memsize(MR_ATTR_DRAM) / 1024 / 1024); 168 printf("FLASH: %lldMB\n", memsize(MR_ATTR_FLASH) / 1024 / 1024); 169// printf("SRAM: %lldMB\n", memsize(MR_ATTR_SRAM) / 1024 / 1024); 170 171 /* XXX only support netbooting for now */ 172 for (i = 0; devsw[i] != NULL; i++) 173 if (strncmp(devsw[i]->dv_name, "net", 174 strlen(devsw[i]->dv_name)) == 0) 175 break; 176 177 if (devsw[i] == NULL) 178 panic("no network devices?!"); 179 180 currdev.d_dev = devsw[i]; 181 currdev.d_type = currdev.d_dev->dv_type; 182 currdev.d_unit = 0; 183 184 env_setenv("currdev", EV_VOLATILE, uboot_fmtdev(&currdev), 185 uboot_setcurrdev, env_nounset); 186 env_setenv("loaddev", EV_VOLATILE, uboot_fmtdev(&currdev), 187 env_noset, env_nounset); 188 189 setenv("LINES", "24", 1); /* optional */ 190 setenv("prompt", "loader>", 1); 191 192 archsw.arch_getdev = uboot_getdev; 193 archsw.arch_copyin = uboot_copyin; 194 archsw.arch_copyout = uboot_copyout; 195 archsw.arch_readin = uboot_readin; 196 archsw.arch_autoload = uboot_autoload; 197 198 interact(); /* doesn't return */ 199 200 return 0; 201} 202 203 204COMMAND_SET(heap, "heap", "show heap usage", command_heap); 205static int 206command_heap(int argc, char *argv[]) 207{ 208 printf("heap base at %p, top at %p, used %ld\n", end, sbrk(0), 209 sbrk(0) - end); 210 211 return(CMD_OK); 212} 213 214COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot); 215static int 216command_reboot(int argc, char *argv[]) 217{ 218 printf("Resetting...\n"); 219 ub_reset(); 220 221 printf("Reset failed!\n"); 222 while(1); 223} 224