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https://github.com/Proxmark/proxmark3.git
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8fcbf652da
+ Add common area at end of RAM to communicate between main os and bootrom + Lower stack end to make room for common area + Implement CMD_DEVICE_INFO in both OS and bootrom to give information about the current state and supported features + Allow hands-free firmware update: When CMD_START_FLASH is received over USB in OS mode, the device will reset and enter the bootrom Pressing the button in hands-free update mode takes precedence: releasing the button will immediately abort firmware update and perform a reset. Do not press the button. + Require each flash sequence to be preceded by a CMD_START_FLASH to set up the boundaries for the following flash sequence Not compatible with linux flasher before SVN revision 200 Currently no compatible flasher for Windows. WINDOWS USERS: DO NOT UPDATE YOUR BOOTROM YET + Protect bootrom flash area unless magic unlock sequence is given in CMD_START_FLASH
26 lines
1.7 KiB
Plaintext
26 lines
1.7 KiB
Plaintext
/* AT91SAM7S256 has 256k Flash and 64k RAM */
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MEMORY
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{
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/* Important note: this memory map has the correct origins for all the flash sections.
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However, this will confuse the currently deployed flash code which expects logical and and not
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physical addresses and performs no sanity checks at all. If confronted with physical addresses,
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it will happily erase everything and brick the device. So for the time being translate these addresses
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down in the objcopy call while updating all the flash code with proper sanity checks, then come
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back later and fix the addresses. -- Henryk Plötz <henryk@ploetzli.ch> 2009-08-27 */
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bootphase1 : ORIGIN = 0x00100000, LENGTH = 0x200 /* Phase 1 bootloader: Copies real bootloader to RAM */
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bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */
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fpgaimage : ORIGIN = 0x00102000, LENGTH = 64k - 0x2000 /* Place where the FPGA image will end up */
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osimage : ORIGIN = 0x00110000, LENGTH = 256K - 64k /* Place where the main OS will end up */
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ram : ORIGIN = 0x00200000, LENGTH = 64K - 0x20 /* RAM, minus small common area */
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commonarea : ORIGIN = 0x00200000 + 64K - 0x20, LENGTH = 0x20 /* Communication between bootloader and main OS */
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}
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/* Export some information that can be used from within the firmware */
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_bootphase1_version_pointer = ORIGIN(bootphase1) + LENGTH(bootphase1) - 0x4;
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_osimage_entry = ORIGIN(osimage);
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_bootrom_start = ORIGIN(bootphase1);
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_bootrom_end = ORIGIN(bootphase2) + LENGTH(bootphase2);
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_flash_start = ORIGIN(bootphase1);
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_flash_end = ORIGIN(osimage) + LENGTH(osimage);
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_stack_end = ORIGIN(ram) + LENGTH(ram) - 8;
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