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Add a common linker script with the memory map for the complete project

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Use the correct physical addresses in the memory map, and instead translate the addresses during postprocessing with objcopy
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henryk@ploetzli.ch 2009-08-27 16:07:35 +00:00
parent fb6e5aa863
commit 2bfed17db2
5 changed files with 50 additions and 28 deletions
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common/ldscript.common Normal file
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/* AT91SAM7S256 has 256k Flash and 64k RAM */
MEMORY
{
/* Important note: this memory map has the correct origins for all the flash sections.
However, this will confuse the currently deployed flash code which expects logical and and not
physical addresses and performs no sanity checks at all. If confronted with physical addresses,
it will happily erase everything and brick the device. So for the time being translate these addresses
down in the objcopy call while updating all the flash code with proper sanity checks, then come
back later and fix the addresses. -- Henryk Plötz <henryk@ploetzli.ch> 2009-08-27 */
bootphase1 : ORIGIN = 0x00100000, LENGTH = 0x200 /* Phase 1 bootloader: Copies real bootloader to RAM */
bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */
fpgaimage : ORIGIN = 0x00102000, LENGTH = 64k - 0x2000 /* Place where the FPGA image will end up */
osimage : ORIGIN = 0x00110000, LENGTH = 256K - 64k /* Place where the main OS will end up */
ram : ORIGIN = 0x00200000, LENGTH = 64K
}