e0bf376068
The only thing that's different between all these chips is the flash size, which can easily be passed as a linker flag instead. This removes a bunch of duplicate code in an uncommon language (linker script). I've also fixed a few boards with incorrect flash sizes: * nano-rp2040 has 16MB instead of 2MB * macropad-rp2040 has 8MB instead of 2MB * gopher-badge has 8MB instead of 1MB
36 строки
1,1 КиБ
Text
36 строки
1,1 КиБ
Text
MEMORY
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{
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/* Reserve exactly 256 bytes at start of flash for second stage bootloader */
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BOOT2_TEXT (rx) : ORIGIN = 0x10000000, LENGTH = 256
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FLASH_TEXT (rx) : ORIGIN = 0x10000000 + 256, LENGTH = __flash_size - 256
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RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 256k
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}
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_stack_size = 2K;
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SECTIONS
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{
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/* Second stage bootloader is prepended to the image. It must be 256 bytes
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and checksummed. The gap to the checksum is zero-padded.
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*/
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.boot2 : {
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__boot2_start__ = .;
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KEEP (*(.boot2));
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/* Explicitly allocate space for CRC32 checksum at end of second stage
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bootloader
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*/
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. = __boot2_start__ + 256 - 4;
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LONG(0)
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} > BOOT2_TEXT = 0x0
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/* The second stage will always enter the image at the start of .text.
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The debugger will use the ELF entry point, which is the _entry_point
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symbol if present, otherwise defaults to start of .text.
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This can be used to transfer control back to the bootrom on debugger
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launches only, to perform proper flash setup.
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*/
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}
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INCLUDE "targets/arm.ld"
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