arch/m68knommu/kernel/vmlinux.lds.S

   1 /*
   2  *      vmlinux.lds.S -- master linker script for m68knommu arch
   3  *
   4  *      (C) Copyright 2002-2004, Greg Ungerer <gerg@snapgear.com>
   5  *
   6  *      This ends up looking compilcated, because of the number of
   7  *      address variations for ram and rom/flash layouts. The real
   8  *      work of the linker script is all at the end, and reasonably
   9  *      strait forward.
  10  */
  11
  12 #include <linux/config.h>
  13 #include <asm-generic/vmlinux.lds.h>
  14
  15 /*
  16  *      Original Palm pilot (same for Xcopilot).
  17  *      There is really only a rom target for this.
  18  */
  19 #ifdef CONFIG_PILOT3
  20 #define ROMVEC_START    0x10c00000
  21 #define ROMVEC_LENGTH   0x10400
  22 #define ROM_START       0x10c10400
  23 #define ROM_LENGTH      0xfec00
  24 #define ROM_END         0x10d00000
  25 #define RAMVEC_START    0x00000000
  26 #define RAMVEC_LENGTH   0x400
  27 #define RAM_START       0x10000400
  28 #define RAM_LENGTH      0xffc00
  29 #define RAM_END         0x10100000
  30 #define _ramend _ram_end_notused
  31 #define DATA_ADDR       RAM_START
  32 #endif
  33
  34 /*
  35  *      Same setup on both the uCsimm and uCdimm.
  36  */
  37 #if defined(CONFIG_UCSIMM) || defined(CONFIG_UCDIMM)
  38 #ifdef CONFIG_RAMKERNEL
  39 #define ROMVEC_START    0x10c10000
  40 #define ROMVEC_LENGTH   0x400
  41 #define ROM_START       0x10c10400
  42 #define ROM_LENGTH      0x1efc00
  43 #define ROM_END         0x10e00000
  44 #define RAMVEC_START    0x00000000
  45 #define RAMVEC_LENGTH   0x400
  46 #define RAM_START       0x00020400
  47 #define RAM_LENGTH      0x7dfc00
  48 #define RAM_END         0x00800000
  49 #endif
  50 #ifdef CONFIG_ROMKERNEL
  51 #define ROMVEC_START    0x10c10000
  52 #define ROMVEC_LENGTH   0x400
  53 #define ROM_START       0x10c10400
  54 #define ROM_LENGTH      0x1efc00
  55 #define ROM_END         0x10e00000
  56 #define RAMVEC_START    0x00000000
  57 #define RAMVEC_LENGTH   0x400
  58 #define RAM_START       0x00020000
  59 #define RAM_LENGTH      0x600000
  60 #define RAM_END         0x00800000
  61 #endif
  62 #ifdef CONFIG_HIMEMKERNEL
  63 #define ROMVEC_START    0x00600000
  64 #define ROMVEC_LENGTH   0x400
  65 #define ROM_START       0x00600400
  66 #define ROM_LENGTH      0x1efc00
  67 #define ROM_END         0x007f0000
  68 #define RAMVEC_START    0x00000000
  69 #define RAMVEC_LENGTH   0x400
  70 #define RAM_START       0x00020000
  71 #define RAM_LENGTH      0x5e0000
  72 #define RAM_END         0x00600000
  73 #endif
  74 #endif
  75
  76 #ifdef CONFIG_DRAGEN2
  77 #define RAM_START       0x10000
  78 #define RAM_LENGTH      0x7f0000
  79 #endif
  80
  81 #ifdef CONFIG_UCQUICC
  82 #define ROMVEC_START    0x00000000
  83 #define ROMVEC_LENGTH   0x404
  84 #define ROM_START       0x00000404
  85 #define ROM_LENGTH      0x1ff6fc
  86 #define ROM_END         0x00200000
  87 #define RAMVEC_START    0x00200000
  88 #define RAMVEC_LENGTH   0x404
  89 #define RAM_START       0x00200404
  90 #define RAM_LENGTH      0x1ff6fc
  91 #define RAM_END         0x00400000
  92 #endif
  93
  94 /*
  95  *      The standard Arnewsh 5206 board only has 1MiB of ram. Not normally
  96  *      enough to be useful. Assume the user has fitted something larger,
  97  *      at least 4MiB in size. No point in not letting the kernel completely
  98  *      link, it will be obvious if it is too big when they go to load it.
  99  */
 100 #if defined(CONFIG_ARN5206)
 101 #define RAM_START       0x10000
 102 #define RAM_LENGTH      0x3f0000
 103 #endif
 104
 105 /*
 106  *      The Motorola 5206eLITE board only has 1MiB of static RAM.
 107  */
 108 #if defined(CONFIG_ELITE)
 109 #define RAM_START       0x30020000
 110 #define RAM_LENGTH      0xe0000
 111 #endif
 112
 113 /*
 114  *      All the Motorola eval boards have the same basic arrangement.
 115  *      The end of RAM will vary depending on how much ram is fitted,
 116  *      but this isn't important here, we assume at least 4MiB.
 117  */
 118 #if defined(CONFIG_M5206eC3) || defined(CONFIG_M5249C3) || \
 119     defined(CONFIG_M5272C3) || defined(CONFIG_M5307C3) || \
 120     defined(CONFIG_ARN5307) || defined(CONFIG_M5407C3) || \
 121     defined(CONFIG_M5271EVB) || defined(CONFIG_M5275EVB) || \
 122     defined(CONFIG_M5235EVB)
 123 #define RAM_START       0x20000
 124 #define RAM_LENGTH      0x3e0000
 125 #endif
 126
 127 /*
 128  *      The Freescale 5208EVB board has 32MB of RAM.
 129  */
 130 #if defined(CONFIG_M5208EVB)
 131 #define RAM_START       0x40020000
 132 #define RAM_LENGTH      0x01fe0000
 133 #endif
 134
 135 /*
 136  *      The senTec COBRA5272 board has nearly the same memory layout as
 137  *      the M5272C3. We assume 16MiB ram.
 138  */
 139 #if defined(CONFIG_COBRA5272)
 140 #define RAM_START   0x20000
 141 #define RAM_LENGTH  0xfe0000
 142 #endif
 143
 144 #if defined(CONFIG_M5282EVB)
 145 #define RAM_START       0x10000
 146 #define RAM_LENGTH      0x3f0000
 147 #endif
 148
 149 /*
 150  *      The senTec COBRA5282 board has the same memory layout as the M5282EVB.
 151  */
 152 #if defined(CONFIG_COBRA5282)
 153 #define  RAM_START   0x10000
 154 #define  RAM_LENGTH  0x3f0000
 155 #endif
 156
 157
 158 /*
 159  *      The EMAC SoM-5282EM module.
 160  */
 161 #if defined(CONFIG_SOM5282EM)
 162 #define  RAM_START   0x10000
 163 #define  RAM_LENGTH  0xff0000
 164 #endif
 165
 166
 167 /*
 168  *      These flash boot boards use all of ram for operation. Again the
 169  *      actual memory size is not important here, assume at least 4MiB.
 170  *      They currently have no support for running in flash.
 171  */
 172 #if defined(CONFIG_NETtel) || defined(CONFIG_eLIA) || \
 173     defined(CONFIG_DISKtel) || defined(CONFIG_SECUREEDGEMP3) || \
 174     defined(CONFIG_HW_FEITH)
 175 #define RAM_START       0x400
 176 #define RAM_LENGTH      0x3ffc00
 177 #endif
 178
 179 /*
 180  *      Sneha Boards mimimun memory
 181  *      The end of RAM will vary depending on how much ram is fitted,
 182  *      but this isn't important here, we assume at least 4MiB.
 183  */
 184 #if defined(CONFIG_CPU16B)
 185 #define RAM_START       0x20000
 186 #define RAM_LENGTH      0x3e0000
 187 #endif
 188
 189 #if defined(CONFIG_MOD5272)
 190 #define RAM_START       0x02000000
 191 #define RAM_LENGTH      0x00800000
 192 #define RAMVEC_START    0x20000000
 193 #define RAMVEC_LENGTH   0x00000400
 194 #endif
 195
 196 #if defined(CONFIG_RAMKERNEL)
 197 #define TEXT            ram
 198 #define DATA            ram
 199 #define INIT            ram
 200 #define BSS             ram
 201 #endif
 202 #if defined(CONFIG_ROMKERNEL) || defined(CONFIG_HIMEMKERNEL)
 203 #define TEXT            rom
 204 #define DATA            ram
 205 #define INIT            ram
 206 #define BSS             ram
 207 #endif
 208
 209 #ifndef DATA_ADDR
 210 #define DATA_ADDR
 211 #endif
 212
 213
 214 OUTPUT_ARCH(m68k)
 215 ENTRY(_start)
 216
 217 MEMORY {
 218 #ifdef RAMVEC_START
 219         ramvec  : ORIGIN = RAMVEC_START, LENGTH = RAMVEC_LENGTH
 220 #endif
 221         ram     : ORIGIN = RAM_START, LENGTH = RAM_LENGTH
 222 #ifdef RAM_END
 223         eram    : ORIGIN = RAM_END, LENGTH = 0
 224 #endif
 225 #ifdef ROM_START
 226         romvec  : ORIGIN = ROMVEC_START, LENGTH = ROMVEC_LENGTH
 227         rom     : ORIGIN = ROM_START, LENGTH = ROM_LENGTH
 228         erom    : ORIGIN = ROM_END, LENGTH = 0
 229 #endif
 230 }
 231
 232 jiffies = jiffies_64 + 4;
 233
 234 SECTIONS {
 235
 236 #ifdef ROMVEC_START
 237         . = ROMVEC_START ;
 238         .romvec : {
 239                 __rom_start = . ;
 240                 _romvec = .;
 241                 *(.data.initvect)
 242         } > romvec
 243 #endif
 244
 245         .text : {
 246                 _stext = . ;
 247                 *(.text)
 248                 SCHED_TEXT
 249                 *(.text.lock)
 250
 251                 . = ALIGN(16);          /* Exception table              */
 252                 __start___ex_table = .;
 253                 *(__ex_table)
 254                 __stop___ex_table = .;
 255
 256                 *(.rodata) *(.rodata.*)
 257                 *(__vermagic)           /* Kernel version magic */
 258                 *(.rodata1)
 259                 *(.rodata.str1.1)
 260
 261                 /* Kernel symbol table: Normal symbols */
 262                 . = ALIGN(4);
 263                 __start___ksymtab = .;
 264                 *(__ksymtab)
 265                 __stop___ksymtab = .;
 266
 267                 /* Kernel symbol table: GPL-only symbols */
 268                 __start___ksymtab_gpl = .;
 269                 *(__ksymtab_gpl)
 270                 __stop___ksymtab_gpl = .;
 271
 272                 /* Kernel symbol table: GPL-future symbols */
 273                 __start___ksymtab_gpl_future = .;
 274                 *(__ksymtab_gpl_future)
 275                 __stop___ksymtab_gpl_future = .;
 276
 277                 /* Kernel symbol table: Normal symbols */
 278                 __start___kcrctab = .;
 279                 *(__kcrctab)
 280                 __stop___kcrctab = .;
 281
 282                 /* Kernel symbol table: GPL-only symbols */
 283                 __start___kcrctab_gpl = .;
 284                 *(__kcrctab_gpl)
 285                 __stop___kcrctab_gpl = .;
 286
 287                 /* Kernel symbol table: GPL-future symbols */
 288                 __start___kcrctab_gpl_future = .;
 289                 *(__kcrctab_gpl_future)
 290                 __stop___kcrctab_gpl_future = .;
 291
 292                 /* Kernel symbol table: strings */
 293                 *(__ksymtab_strings)
 294
 295                 /* Built-in module parameters */
 296                 . = ALIGN(4) ;
 297                 __start___param = .;
 298                 *(__param)
 299                 __stop___param = .;
 300
 301                 . = ALIGN(4) ;
 302                 _etext = . ;
 303         } > TEXT
 304
 305 #ifdef ROM_END
 306         . = ROM_END ;
 307         .erom : {
 308                 __rom_end = . ;
 309         } > erom
 310 #endif
 311 #ifdef RAMVEC_START
 312         . = RAMVEC_START ;
 313         .ramvec : {
 314                 __ramvec = .;
 315         } > ramvec
 316 #endif
 317
 318         .data DATA_ADDR : {
 319                 . = ALIGN(4);
 320                 _sdata = . ;
 321                 *(.data)
 322                 . = ALIGN(8192) ;
 323                 *(.data.init_task)
 324                 _edata = . ;
 325         } > DATA
 326
 327         .init : {
 328                 . = ALIGN(4096);
 329                 __init_begin = .;
 330                 _sinittext = .;
 331                 *(.init.text)
 332                 _einittext = .;
 333                 *(.init.data)
 334                 . = ALIGN(16);
 335                 __setup_start = .;
 336                 *(.init.setup)
 337                 __setup_end = .;
 338                 __initcall_start = .;
 339                 *(.initcall1.init)
 340                 *(.initcall2.init)
 341                 *(.initcall3.init)
 342                 *(.initcall4.init)
 343                 *(.initcall5.init)
 344                 *(.initcall6.init)
 345                 *(.initcall7.init)
 346                 __initcall_end = .;
 347                 __con_initcall_start = .;
 348                 *(.con_initcall.init)
 349                 __con_initcall_end = .;
 350                 __security_initcall_start = .;
 351                 *(.security_initcall.init)
 352                 __security_initcall_end = .;
 353                 . = ALIGN(4);
 354                 __initramfs_start = .;
 355                 *(.init.ramfs)
 356                 __initramfs_end = .;
 357                 . = ALIGN(4096);
 358                 __init_end = .;
 359         } > INIT
 360
 361         /DISCARD/ : {
 362                 *(.exit.text)
 363                 *(.exit.data)
 364                 *(.exitcall.exit)
 365         }
 366
 367         .bss : {
 368                 . = ALIGN(4);
 369                 _sbss = . ;
 370                 *(.bss)
 371                 *(COMMON)
 372                 . = ALIGN(4) ;
 373                 _ebss = . ;
 374         } > BSS
 375
 376 #ifdef RAM_END
 377         . = RAM_END ;
 378         .eram : {
 379                 __ramend = . ;
 380                 _ramend = . ;
 381         } > eram
 382 #endif
 383 }
 384