wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2001 William L. Pitts |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms are freely |
| 6 | * permitted provided that the above copyright notice and this |
| 7 | * paragraph and the following disclaimer are duplicated in all |
| 8 | * such forms. |
| 9 | * |
| 10 | * This software is provided "AS IS" and without any express or |
| 11 | * implied warranties, including, without limitation, the implied |
| 12 | * warranties of merchantability and fitness for a particular |
| 13 | * purpose. |
| 14 | */ |
| 15 | |
| 16 | #include <common.h> |
| 17 | #include <command.h> |
| 18 | #include <linux/ctype.h> |
| 19 | #include <net.h> |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 20 | #include <elf.h> |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 21 | #include <vxworks.h> |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 22 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 23 | #if defined(CONFIG_WALNUT) || defined(CONFIG_SYS_VXWORKS_MAC_PTR) |
Wolfgang Denk | d87080b | 2006-03-31 18:32:53 +0200 | [diff] [blame] | 24 | DECLARE_GLOBAL_DATA_PTR; |
| 25 | #endif |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 26 | |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 27 | static unsigned long load_elf_image_phdr(unsigned long addr); |
| 28 | static unsigned long load_elf_image_shdr(unsigned long addr); |
Mike Frysinger | 017e9b7 | 2008-04-13 19:42:18 -0400 | [diff] [blame] | 29 | |
| 30 | /* Allow ports to override the default behavior */ |
Jeroen Hofstee | 553d8c3 | 2014-10-08 22:57:31 +0200 | [diff] [blame] | 31 | static unsigned long do_bootelf_exec(ulong (*entry)(int, char * const[]), |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 32 | int argc, char * const argv[]) |
Mike Frysinger | 1f1d88d | 2008-01-29 18:21:05 -0500 | [diff] [blame] | 33 | { |
Mike Frysinger | 017e9b7 | 2008-04-13 19:42:18 -0400 | [diff] [blame] | 34 | unsigned long ret; |
| 35 | |
Mike Frysinger | 1f1d88d | 2008-01-29 18:21:05 -0500 | [diff] [blame] | 36 | /* |
| 37 | * QNX images require the data cache is disabled. |
| 38 | * Data cache is already flushed, so just turn it off. |
| 39 | */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 40 | int dcache = dcache_status(); |
Mike Frysinger | 017e9b7 | 2008-04-13 19:42:18 -0400 | [diff] [blame] | 41 | if (dcache) |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 42 | dcache_disable(); |
Mike Frysinger | 1f1d88d | 2008-01-29 18:21:05 -0500 | [diff] [blame] | 43 | |
Mike Frysinger | 017e9b7 | 2008-04-13 19:42:18 -0400 | [diff] [blame] | 44 | /* |
| 45 | * pass address parameter as argv[0] (aka command name), |
| 46 | * and all remaining args |
| 47 | */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 48 | ret = entry(argc, argv); |
Mike Frysinger | 1f1d88d | 2008-01-29 18:21:05 -0500 | [diff] [blame] | 49 | |
Mike Frysinger | 017e9b7 | 2008-04-13 19:42:18 -0400 | [diff] [blame] | 50 | if (dcache) |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 51 | dcache_enable(); |
Mike Frysinger | 017e9b7 | 2008-04-13 19:42:18 -0400 | [diff] [blame] | 52 | |
| 53 | return ret; |
| 54 | } |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 55 | |
| 56 | /* ====================================================================== |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 57 | * Determine if a valid ELF image exists at the given memory location. |
| 58 | * First looks at the ELF header magic field, the makes sure that it is |
| 59 | * executable and makes sure that it is for a PowerPC. |
| 60 | * ====================================================================== */ |
| 61 | int valid_elf_image(unsigned long addr) |
| 62 | { |
| 63 | Elf32_Ehdr *ehdr; /* Elf header structure pointer */ |
| 64 | |
| 65 | /* -------------------------------------------------- */ |
| 66 | |
| 67 | ehdr = (Elf32_Ehdr *) addr; |
| 68 | |
| 69 | if (!IS_ELF(*ehdr)) { |
| 70 | printf("## No elf image at address 0x%08lx\n", addr); |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | if (ehdr->e_type != ET_EXEC) { |
| 75 | printf("## Not a 32-bit elf image at address 0x%08lx\n", addr); |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | #if 0 |
| 80 | if (ehdr->e_machine != EM_PPC) { |
| 81 | printf("## Not a PowerPC elf image at address 0x%08lx\n", addr); |
| 82 | return 0; |
| 83 | } |
| 84 | #endif |
| 85 | |
| 86 | return 1; |
| 87 | } |
| 88 | |
| 89 | /* ====================================================================== |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 90 | * Interpreter command to boot an arbitrary ELF image from memory. |
| 91 | * ====================================================================== */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 92 | int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 93 | { |
| 94 | unsigned long addr; /* Address of the ELF image */ |
| 95 | unsigned long rc; /* Return value from user code */ |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 96 | char *sload, *saddr; |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 97 | |
| 98 | /* -------------------------------------------------- */ |
| 99 | int rcode = 0; |
| 100 | |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 101 | sload = saddr = NULL; |
| 102 | if (argc == 3) { |
| 103 | sload = argv[1]; |
| 104 | saddr = argv[2]; |
| 105 | } else if (argc == 2) { |
| 106 | if (argv[1][0] == '-') |
| 107 | sload = argv[1]; |
| 108 | else |
| 109 | saddr = argv[1]; |
| 110 | } |
| 111 | |
| 112 | if (saddr) |
| 113 | addr = simple_strtoul(saddr, NULL, 16); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 114 | else |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 115 | addr = load_addr; |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 116 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 117 | if (!valid_elf_image(addr)) |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 118 | return 1; |
| 119 | |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 120 | if (sload && sload[1] == 'p') |
| 121 | addr = load_elf_image_phdr(addr); |
| 122 | else |
| 123 | addr = load_elf_image_shdr(addr); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 124 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 125 | printf("## Starting application at 0x%08lx ...\n", addr); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 126 | |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 127 | /* |
| 128 | * pass address parameter as argv[0] (aka command name), |
| 129 | * and all remaining args |
| 130 | */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 131 | rc = do_bootelf_exec((void *)addr, argc - 1, argv + 1); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 132 | if (rc != 0) |
| 133 | rcode = 1; |
| 134 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 135 | printf("## Application terminated, rc = 0x%lx\n", rc); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 136 | return rcode; |
| 137 | } |
| 138 | |
| 139 | /* ====================================================================== |
| 140 | * Interpreter command to boot VxWorks from a memory image. The image can |
| 141 | * be either an ELF image or a raw binary. Will attempt to setup the |
| 142 | * bootline and other parameters correctly. |
| 143 | * ====================================================================== */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 144 | int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 145 | { |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 146 | unsigned long addr; /* Address of image */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 147 | unsigned long bootaddr; /* Address to put the bootline */ |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 148 | char *bootline; /* Text of the bootline */ |
| 149 | char *tmp; /* Temporary char pointer */ |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 150 | char build_buf[128]; /* Buffer for building the bootline */ |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 151 | |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 152 | /* --------------------------------------------------- |
| 153 | * |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 154 | * Check the loadaddr variable. |
| 155 | * If we don't know where the image is then we're done. |
| 156 | */ |
| 157 | |
Stany MARCEL | 07a1a0c | 2013-11-27 14:48:43 +0100 | [diff] [blame] | 158 | if (argc < 2) |
Stefan Roese | 1bdd468 | 2006-11-29 12:53:15 +0100 | [diff] [blame] | 159 | addr = load_addr; |
| 160 | else |
Stany MARCEL | 07a1a0c | 2013-11-27 14:48:43 +0100 | [diff] [blame] | 161 | addr = simple_strtoul(argv[1], NULL, 16); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 162 | |
Jon Loeliger | baa26db | 2007-07-08 17:51:39 -0500 | [diff] [blame] | 163 | #if defined(CONFIG_CMD_NET) |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 164 | /* |
| 165 | * Check to see if we need to tftp the image ourselves before starting |
| 166 | */ |
Stany MARCEL | 07a1a0c | 2013-11-27 14:48:43 +0100 | [diff] [blame] | 167 | if ((argc == 2) && (strcmp(argv[1], "tftp") == 0)) { |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 168 | if (NetLoop(TFTPGET) <= 0) |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 169 | return 1; |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 170 | printf("Automatic boot of VxWorks image at address 0x%08lx ...\n", |
| 171 | addr); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 172 | } |
| 173 | #endif |
| 174 | |
| 175 | /* This should equate |
| 176 | * to NV_RAM_ADRS + NV_BOOT_OFFSET + NV_ENET_OFFSET |
| 177 | * from the VxWorks BSP header files. |
| 178 | * This will vary from board to board |
| 179 | */ |
| 180 | |
Stefan Roese | c157d8e | 2005-08-01 16:41:48 +0200 | [diff] [blame] | 181 | #if defined(CONFIG_WALNUT) |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 182 | tmp = (char *) CONFIG_SYS_NVRAM_BASE_ADDR + 0x500; |
Heiko Schocher | 76756e4 | 2009-03-26 07:33:59 +0100 | [diff] [blame] | 183 | eth_getenv_enetaddr("ethaddr", (uchar *)build_buf); |
Mike Frysinger | 62c93d9 | 2009-02-11 18:51:43 -0500 | [diff] [blame] | 184 | memcpy(tmp, &build_buf[3], 3); |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 185 | #elif defined(CONFIG_SYS_VXWORKS_MAC_PTR) |
| 186 | tmp = (char *) CONFIG_SYS_VXWORKS_MAC_PTR; |
Heiko Schocher | 76756e4 | 2009-03-26 07:33:59 +0100 | [diff] [blame] | 187 | eth_getenv_enetaddr("ethaddr", (uchar *)build_buf); |
Mike Frysinger | 62c93d9 | 2009-02-11 18:51:43 -0500 | [diff] [blame] | 188 | memcpy(tmp, build_buf, 6); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 189 | #else |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 190 | puts("## Ethernet MAC address not copied to NV RAM\n"); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 191 | #endif |
| 192 | |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 193 | /* |
| 194 | * Use bootaddr to find the location in memory that VxWorks |
| 195 | * will look for the bootline string. The default value for |
| 196 | * PowerPC is LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET which |
| 197 | * defaults to 0x4200 |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 198 | */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 199 | tmp = getenv("bootaddr"); |
Reinhard Arlt | 1b3e0b1 | 2013-02-04 09:37:11 +0000 | [diff] [blame] | 200 | if (!tmp) |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 201 | bootaddr = CONFIG_SYS_VXWORKS_BOOT_ADDR; |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 202 | else |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 203 | bootaddr = simple_strtoul(tmp, NULL, 16); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 204 | |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 205 | /* |
| 206 | * Check to see if the bootline is defined in the 'bootargs' |
| 207 | * parameter. If it is not defined, we may be able to |
| 208 | * construct the info |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 209 | */ |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 210 | bootline = getenv("bootargs"); |
| 211 | if (bootline) { |
| 212 | memcpy((void *) bootaddr, bootline, |
| 213 | max(strlen(bootline), 255)); |
| 214 | flush_cache(bootaddr, max(strlen(bootline), 255)); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 215 | } else { |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 216 | sprintf(build_buf, CONFIG_SYS_VXWORKS_BOOT_DEVICE); |
| 217 | tmp = getenv("bootfile"); |
| 218 | if (tmp) |
| 219 | sprintf(&build_buf[strlen(build_buf)], |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 220 | "%s:%s ", CONFIG_SYS_VXWORKS_SERVERNAME, tmp); |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 221 | else |
| 222 | sprintf(&build_buf[strlen(build_buf)], |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 223 | "%s:file ", CONFIG_SYS_VXWORKS_SERVERNAME); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 224 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 225 | tmp = getenv("ipaddr"); |
| 226 | if (tmp) |
| 227 | sprintf(&build_buf[strlen(build_buf)], "e=%s ", tmp); |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 228 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 229 | tmp = getenv("serverip"); |
| 230 | if (tmp) |
| 231 | sprintf(&build_buf[strlen(build_buf)], "h=%s ", tmp); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 232 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 233 | tmp = getenv("hostname"); |
| 234 | if (tmp) |
| 235 | sprintf(&build_buf[strlen(build_buf)], "tn=%s ", tmp); |
| 236 | |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 237 | #ifdef CONFIG_SYS_VXWORKS_ADD_PARAMS |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 238 | sprintf(&build_buf[strlen(build_buf)], |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 239 | CONFIG_SYS_VXWORKS_ADD_PARAMS); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 240 | #endif |
Niklaus Giger | 29a4c24 | 2008-11-03 22:15:34 +0100 | [diff] [blame] | 241 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 242 | memcpy((void *) bootaddr, build_buf, |
| 243 | max(strlen(build_buf), 255)); |
| 244 | flush_cache(bootaddr, max(strlen(build_buf), 255)); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 245 | } |
| 246 | |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 247 | /* |
| 248 | * If the data at the load address is an elf image, then |
| 249 | * treat it like an elf image. Otherwise, assume that it is a |
| 250 | * binary image |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 251 | */ |
| 252 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 253 | if (valid_elf_image(addr)) { |
| 254 | addr = load_elf_image_shdr(addr); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 255 | } else { |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 256 | puts("## Not an ELF image, assuming binary\n"); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 257 | /* leave addr as load_addr */ |
| 258 | } |
| 259 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 260 | printf("## Using bootline (@ 0x%lx): %s\n", bootaddr, |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 261 | (char *) bootaddr); |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 262 | printf("## Starting vxWorks at 0x%08lx ...\n", addr); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 263 | |
Reinhard Arlt | 6eee21d | 2011-11-18 09:06:52 +0000 | [diff] [blame] | 264 | dcache_disable(); |
| 265 | ((void (*)(int)) addr) (0); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 266 | |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 267 | puts("## vxWorks terminated\n"); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 268 | return 1; |
| 269 | } |
| 270 | |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 271 | /* ====================================================================== |
| 272 | * A very simple elf loader, assumes the image is valid, returns the |
| 273 | * entry point address. |
| 274 | * ====================================================================== */ |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 275 | static unsigned long load_elf_image_phdr(unsigned long addr) |
| 276 | { |
| 277 | Elf32_Ehdr *ehdr; /* Elf header structure pointer */ |
| 278 | Elf32_Phdr *phdr; /* Program header structure pointer */ |
| 279 | int i; |
| 280 | |
| 281 | ehdr = (Elf32_Ehdr *) addr; |
| 282 | phdr = (Elf32_Phdr *) (addr + ehdr->e_phoff); |
| 283 | |
| 284 | /* Load each program header */ |
| 285 | for (i = 0; i < ehdr->e_phnum; ++i) { |
Daniel Schwierzeck | b0d60a9 | 2012-09-16 06:55:06 +0000 | [diff] [blame] | 286 | void *dst = (void *)(uintptr_t) phdr->p_paddr; |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 287 | void *src = (void *) addr + phdr->p_offset; |
| 288 | debug("Loading phdr %i to 0x%p (%i bytes)\n", |
| 289 | i, dst, phdr->p_filesz); |
| 290 | if (phdr->p_filesz) |
| 291 | memcpy(dst, src, phdr->p_filesz); |
| 292 | if (phdr->p_filesz != phdr->p_memsz) |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 293 | memset(dst + phdr->p_filesz, 0x00, |
| 294 | phdr->p_memsz - phdr->p_filesz); |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 295 | flush_cache((unsigned long)dst, phdr->p_filesz); |
| 296 | ++phdr; |
| 297 | } |
| 298 | |
| 299 | return ehdr->e_entry; |
| 300 | } |
| 301 | |
| 302 | static unsigned long load_elf_image_shdr(unsigned long addr) |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 303 | { |
| 304 | Elf32_Ehdr *ehdr; /* Elf header structure pointer */ |
| 305 | Elf32_Shdr *shdr; /* Section header structure pointer */ |
| 306 | unsigned char *strtab = 0; /* String table pointer */ |
| 307 | unsigned char *image; /* Binary image pointer */ |
| 308 | int i; /* Loop counter */ |
| 309 | |
| 310 | /* -------------------------------------------------- */ |
| 311 | |
| 312 | ehdr = (Elf32_Ehdr *) addr; |
| 313 | |
| 314 | /* Find the section header string table for output info */ |
| 315 | shdr = (Elf32_Shdr *) (addr + ehdr->e_shoff + |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 316 | (ehdr->e_shstrndx * sizeof(Elf32_Shdr))); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 317 | |
| 318 | if (shdr->sh_type == SHT_STRTAB) |
| 319 | strtab = (unsigned char *) (addr + shdr->sh_offset); |
| 320 | |
| 321 | /* Load each appropriate section */ |
| 322 | for (i = 0; i < ehdr->e_shnum; ++i) { |
| 323 | shdr = (Elf32_Shdr *) (addr + ehdr->e_shoff + |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 324 | (i * sizeof(Elf32_Shdr))); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 325 | |
| 326 | if (!(shdr->sh_flags & SHF_ALLOC) |
| 327 | || shdr->sh_addr == 0 || shdr->sh_size == 0) { |
| 328 | continue; |
| 329 | } |
| 330 | |
| 331 | if (strtab) { |
Niklaus Giger | 3c97284 | 2009-07-23 23:31:58 +0200 | [diff] [blame] | 332 | debug("%sing %s @ 0x%08lx (%ld bytes)\n", |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 333 | (shdr->sh_type == SHT_NOBITS) ? |
| 334 | "Clear" : "Load", |
| 335 | &strtab[shdr->sh_name], |
| 336 | (unsigned long) shdr->sh_addr, |
| 337 | (long) shdr->sh_size); |
| 338 | } |
| 339 | |
| 340 | if (shdr->sh_type == SHT_NOBITS) { |
Daniel Schwierzeck | b0d60a9 | 2012-09-16 06:55:06 +0000 | [diff] [blame] | 341 | memset((void *)(uintptr_t) shdr->sh_addr, 0, |
| 342 | shdr->sh_size); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 343 | } else { |
| 344 | image = (unsigned char *) addr + shdr->sh_offset; |
Daniel Schwierzeck | b0d60a9 | 2012-09-16 06:55:06 +0000 | [diff] [blame] | 345 | memcpy((void *)(uintptr_t) shdr->sh_addr, |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 346 | (const void *) image, |
| 347 | shdr->sh_size); |
| 348 | } |
Daniel Schwierzeck | 62e03d3 | 2012-09-16 06:55:05 +0000 | [diff] [blame] | 349 | flush_cache(shdr->sh_addr, shdr->sh_size); |
wdenk | 458ded3 | 2002-09-20 10:59:08 +0000 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | return ehdr->e_entry; |
| 353 | } |
| 354 | |
| 355 | /* ====================================================================== */ |
wdenk | 0d49839 | 2003-07-01 21:06:45 +0000 | [diff] [blame] | 356 | U_BOOT_CMD( |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 357 | bootelf, 3, 0, do_bootelf, |
Peter Tyser | 2fb2604 | 2009-01-27 18:03:12 -0600 | [diff] [blame] | 358 | "Boot from an ELF image in memory", |
Mike Frysinger | f44a928 | 2010-10-02 15:44:53 -0400 | [diff] [blame] | 359 | "[-p|-s] [address]\n" |
| 360 | "\t- load ELF image at [address] via program headers (-p)\n" |
| 361 | "\t or via section headers (-s)" |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 362 | ); |
| 363 | |
wdenk | 0d49839 | 2003-07-01 21:06:45 +0000 | [diff] [blame] | 364 | U_BOOT_CMD( |
| 365 | bootvx, 2, 0, do_bootvx, |
Peter Tyser | 2fb2604 | 2009-01-27 18:03:12 -0600 | [diff] [blame] | 366 | "Boot vxWorks from an ELF image", |
Wolfgang Denk | a89c33d | 2009-05-24 17:06:54 +0200 | [diff] [blame] | 367 | " [address] - load address of vxWorks ELF image." |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 368 | ); |