main.c revision 235094
1/*- 2 * Copyright (c) 2000 Benno Rice <benno@jeamland.net> 3 * Copyright (c) 2000 Stephane Potvin <sepotvin@videotron.ca> 4 * Copyright (c) 2007-2008 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 235094 2012-05-06 16:01:58Z kientzle $"); 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 49extern unsigned char _etext[]; 50extern unsigned char _edata[]; 51extern unsigned char __bss_start[]; 52extern unsigned char __sbss_start[]; 53extern unsigned char __sbss_end[]; 54extern unsigned char _end[]; 55 56#ifdef LOADER_FDT_SUPPORT 57extern int command_fdt_internal(int argc, char *argv[]); 58#endif 59 60static void 61dump_sig(struct api_signature *sig) 62{ 63#ifdef DEBUG 64 printf("signature:\n"); 65 printf(" version\t= %d\n", sig->version); 66 printf(" checksum\t= 0x%08x\n", sig->checksum); 67 printf(" sc entry\t= 0x%08x\n", sig->syscall); 68#endif 69} 70 71static void 72dump_addr_info(void) 73{ 74#ifdef DEBUG 75 printf("\naddresses info:\n"); 76 printf(" _etext (sdata) = 0x%08x\n", (uint32_t)_etext); 77 printf(" _edata = 0x%08x\n", (uint32_t)_edata); 78 printf(" __sbss_start = 0x%08x\n", (uint32_t)__sbss_start); 79 printf(" __sbss_end = 0x%08x\n", (uint32_t)__sbss_end); 80 printf(" __sbss_start = 0x%08x\n", (uint32_t)__bss_start); 81 printf(" _end = 0x%08x\n", (uint32_t)_end); 82 printf(" syscall entry = 0x%08x\n", (uint32_t)syscall_ptr); 83#endif 84} 85 86static uint64_t 87memsize(struct sys_info *si, int flags) 88{ 89 uint64_t size; 90 int i; 91 92 size = 0; 93 for (i = 0; i < si->mr_no; i++) 94 if (si->mr[i].flags == flags && si->mr[i].size) 95 size += (si->mr[i].size); 96 97 return (size); 98} 99 100static void 101meminfo(void) 102{ 103 uint64_t size; 104 struct sys_info *si; 105 int t[3] = { MR_ATTR_DRAM, MR_ATTR_FLASH, MR_ATTR_SRAM }; 106 int i; 107 108 if ((si = ub_get_sys_info()) == NULL) 109 panic("could not retrieve system info"); 110 111 for (i = 0; i < 3; i++) { 112 size = memsize(si, t[i]); 113 if (size > 0) 114 printf("%s:\t %lldMB\n", ub_mem_type(t[i]), 115 size / 1024 / 1024); 116 } 117} 118 119static uint64_t 120uboot_loadaddr(u_int type, void *data, uint64_t addr) 121{ 122 printf("uboot_loadaddr: type=%d data=0x%x addr=0x%x\n", 123 type, data, addr); 124 if (type == 1) 125 return 0x40000000; 126 return (addr); 127} 128 129int 130main(void) 131{ 132 struct api_signature *sig = NULL; 133 int i; 134 struct open_file f; 135 136 if (!api_search_sig(&sig)) 137 return (-1); 138 139 syscall_ptr = sig->syscall; 140 if (syscall_ptr == NULL) 141 return (-2); 142 143 if (sig->version > API_SIG_VERSION) 144 return (-3); 145 146 /* Clear BSS sections */ 147 bzero(__sbss_start, __sbss_end - __sbss_start); 148 bzero(__bss_start, _end - __bss_start); 149 150 /* 151 * Set up console. 152 */ 153 cons_probe(); 154 155 printf("Compatible API signature found @%x\n", (uint32_t)sig); 156 157 dump_sig(sig); 158 dump_addr_info(); 159 160 /* 161 * Initialise the heap as early as possible. Once this is done, 162 * alloc() is usable. The stack is buried inside us, so this is 163 * safe. 164 */ 165 setheap((void *)end, (void *)(end + 512 * 1024)); 166 167 /* 168 * Enumerate U-Boot devices 169 */ 170 if ((devs_no = ub_dev_enum()) == 0) 171 panic("no U-Boot devices found"); 172 printf("Number of U-Boot devices: %d\n", devs_no); 173 174 printf("\n"); 175 printf("%s, Revision %s\n", bootprog_name, bootprog_rev); 176 printf("(%s, %s)\n", bootprog_maker, bootprog_date); 177 meminfo(); 178 179 /* 180 * March through the device switch probing for things. 181 */ 182 for (i = 0; devsw[i] != NULL; i++) { 183 184 if (devsw[i]->dv_init == NULL) 185 continue; 186 if ((devsw[i]->dv_init)() != 0) 187 continue; 188 189 printf("\nDevice: %s\n", devsw[i]->dv_name); 190 191 currdev.d_dev = devsw[i]; 192 currdev.d_type = currdev.d_dev->dv_type; 193 currdev.d_unit = 0; 194 195 if (strncmp(devsw[i]->dv_name, "disk", 196 strlen(devsw[i]->dv_name)) == 0) { 197 f.f_devdata = &currdev; 198 currdev.d_disk.pnum = 0; 199 if (devsw[i]->dv_open(&f,&currdev) == 0) 200 break; 201 } 202 203 if (strncmp(devsw[i]->dv_name, "net", 204 strlen(devsw[i]->dv_name)) == 0) 205 break; 206 } 207 208 if (devsw[i] == NULL) 209 panic("No boot device found!"); 210 211 env_setenv("currdev", EV_VOLATILE, uboot_fmtdev(&currdev), 212 uboot_setcurrdev, env_nounset); 213 env_setenv("loaddev", EV_VOLATILE, uboot_fmtdev(&currdev), 214 env_noset, env_nounset); 215 216 setenv("LINES", "24", 1); /* optional */ 217 setenv("prompt", "loader>", 1); 218 219 archsw.arch_getdev = uboot_getdev; 220 archsw.arch_copyin = uboot_copyin; 221 archsw.arch_copyout = uboot_copyout; 222 archsw.arch_readin = uboot_readin; 223 archsw.arch_autoload = uboot_autoload; 224 archsw.arch_loadaddr = uboot_loadaddr; 225 226 interact(); /* doesn't return */ 227 228 return (0); 229} 230 231 232COMMAND_SET(heap, "heap", "show heap usage", command_heap); 233static int 234command_heap(int argc, char *argv[]) 235{ 236 237 printf("heap base at %p, top at %p, used %d\n", end, sbrk(0), 238 sbrk(0) - end); 239 240 return (CMD_OK); 241} 242 243COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot); 244static int 245command_reboot(int argc, char *argv[]) 246{ 247 248 printf("Resetting...\n"); 249 ub_reset(); 250 251 printf("Reset failed!\n"); 252 while(1); 253} 254 255COMMAND_SET(devinfo, "devinfo", "show U-Boot devices", command_devinfo); 256static int 257command_devinfo(int argc, char *argv[]) 258{ 259 int i; 260 261 if ((devs_no = ub_dev_enum()) == 0) { 262 command_errmsg = "no U-Boot devices found!?"; 263 return (CMD_ERROR); 264 } 265 266 printf("U-Boot devices:\n"); 267 for (i = 0; i < devs_no; i++) { 268 ub_dump_di(i); 269 printf("\n"); 270 } 271 return (CMD_OK); 272} 273 274COMMAND_SET(sysinfo, "sysinfo", "show U-Boot system info", command_sysinfo); 275static int 276command_sysinfo(int argc, char *argv[]) 277{ 278 struct sys_info *si; 279 280 if ((si = ub_get_sys_info()) == NULL) { 281 command_errmsg = "could not retrieve U-Boot sys info!?"; 282 return (CMD_ERROR); 283 } 284 285 printf("U-Boot system info:\n"); 286 ub_dump_si(si); 287 return (CMD_OK); 288} 289 290#ifdef LOADER_FDT_SUPPORT 291/* 292 * Since proper fdt command handling function is defined in fdt_loader_cmd.c, 293 * and declaring it as extern is in contradiction with COMMAND_SET() macro 294 * (which uses static pointer), we're defining wrapper function, which 295 * calls the proper fdt handling routine. 296 */ 297static int 298command_fdt(int argc, char *argv[]) 299{ 300 301 return (command_fdt_internal(argc, argv)); 302} 303 304COMMAND_SET(fdt, "fdt", "flattened device tree handling", command_fdt); 305#endif 306