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Commit | Line | Data |
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2bfed17d | 1 | /* AT91SAM7S256 has 256k Flash and 64k RAM */ |
2 | MEMORY | |
3 | { | |
4 | /* Important note: this memory map has the correct origins for all the flash sections. | |
5 | However, this will confuse the currently deployed flash code which expects logical and and not | |
6 | physical addresses and performs no sanity checks at all. If confronted with physical addresses, | |
7 | it will happily erase everything and brick the device. So for the time being translate these addresses | |
8 | down in the objcopy call while updating all the flash code with proper sanity checks, then come | |
9 | back later and fix the addresses. -- Henryk Plötz <henryk@ploetzli.ch> 2009-08-27 */ | |
10 | bootphase1 : ORIGIN = 0x00100000, LENGTH = 0x200 /* Phase 1 bootloader: Copies real bootloader to RAM */ | |
11 | bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */ | |
12 | fpgaimage : ORIGIN = 0x00102000, LENGTH = 64k - 0x2000 /* Place where the FPGA image will end up */ | |
13 | osimage : ORIGIN = 0x00110000, LENGTH = 256K - 64k /* Place where the main OS will end up */ | |
8fcbf652 | 14 | ram : ORIGIN = 0x00200000, LENGTH = 64K - 0x20 /* RAM, minus small common area */ |
15 | commonarea : ORIGIN = 0x00200000 + 64K - 0x20, LENGTH = 0x20 /* Communication between bootloader and main OS */ | |
2bfed17d | 16 | } |
17 | ||
4271e82d | 18 | /* Export some information that can be used from within the firmware */ |
19 | _bootphase1_version_pointer = ORIGIN(bootphase1) + LENGTH(bootphase1) - 0x4; | |
e3ae0257 | 20 | _osimage_entry = ORIGIN(osimage); |
8fcbf652 | 21 | _bootrom_start = ORIGIN(bootphase1); |
22 | _bootrom_end = ORIGIN(bootphase2) + LENGTH(bootphase2); | |
4271e82d | 23 | _flash_start = ORIGIN(bootphase1); |
e3ae0257 | 24 | _flash_end = ORIGIN(osimage) + LENGTH(osimage); |
25 | _stack_end = ORIGIN(ram) + LENGTH(ram) - 8; |