2 -----------------------------------------------------------------------------
3 This code is licensed to you under the ter
4 ms of the GNU GPL, version 2 or,
5 at your option, any later version. See the LICENSE.txt file for the text of
7 -----------------------------------------------------------------------------
9 -----------------------------------------------------------------------------
12 stacksize = DEFINED(stacksize) ? stacksize : 8488;
13 commonareasize = 0x20;
15 /* AT91SAM7S256 has 256k Flash and 64k RAM */
16 /* AT91SAM7S512 has 512k Flash and 64k RAM */
17 /* boot space = 8192bytes (0x2000) */
18 /* osimage space = (512k - 0x2000 == 524288 - 8192 == 516096bytes == 0x7E000 ) */
21 bootphase1 : ORIGIN = 0x00100000, LENGTH = 0x200 /* Phase 1 bootloader: Copies real bootloader to RAM */
22 bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */
23 osimage : ORIGIN = 0x00102000, LENGTH = 512K - 0x2000 /* Place where the main OS will end up */
24 ram : ORIGIN = 0x00200000, LENGTH = 64K - commonareasize /* RAM, minus small common area */
25 stack : ORIGIN = 0x00200000 + 64K - stacksize - commonareasize, LENGTH = stacksize /* Stack */
26 commonarea : ORIGIN = 0x00200000 + 64K - commonareasize, LENGTH = commonareasize /* Communication between bootloader and main OS */
29 /* Export some information that can be used from within the firmware */
30 _bootphase1_version_pointer = ORIGIN(bootphase1) + LENGTH(bootphase1) - 0x4;
31 _osimage_entry = ORIGIN(osimage);
32 _bootrom_start = ORIGIN(bootphase1);
33 _bootrom_end = ORIGIN(bootphase2) + LENGTH(bootphase2);
34 _flash_start = ORIGIN(bootphase1);
35 _flash_end = ORIGIN(osimage) + LENGTH(osimage);
36 _stack_start = ORIGIN(stack);
37 _stack_end = ORIGIN(ram) + LENGTH(ram) - 8;