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Last change
on this file since 281 was
276,
checked in by bouyer, 13 years ago
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A boot loader to be stored in ROM of a TSAR platform.
Based on Cesar FUGUET's work.
Platform-specific files are in a subdirectory, e.g. platform_fpga_de2-115,
so the same code can be targetted to different platforms.
The platform is selected with the PLATFORM_DIR environnement variable.
The supported variant are soclib and fpga, the later being the default
and the former selected by defining the SOCLIB environnement variable.
The boot loader embeds a binary device tree describing the platform,
to be used by the loaded software.
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File size:
781 bytes
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| Line | |
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| 1 | /********************************************************** |
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| 2 | File : ldscript |
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| 3 | Author : Cesar Fuguet |
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| 4 | Date : June 2011 |
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| 5 | **********************************************************/ |
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| 6 | |
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| 7 | /* definition of the base address for all segments |
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| 8 | The peripherals base addresses are referenced by the |
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| 9 | software drivers and must be defined, even if the |
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| 10 | peripherals are not present in the architecture */ |
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| 11 | |
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| 12 | seg_stack_base = 0x04000000; |
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| 13 | seg_reset_heap_base = 0x04400000; |
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| 14 | |
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| 15 | seg_reset_code_base = 0xBFC00000; /* le code de boot */ |
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| 16 | |
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| 17 | /* Grouping sections into segments */ |
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| 18 | |
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| 19 | ENTRY(boot) |
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| 20 | SECTIONS |
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| 21 | { |
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| 22 | . = seg_reset_code_base; |
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| 23 | .text : { |
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| 24 | *(.boot) |
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| 25 | *(.reset) |
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| 26 | } |
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| 27 | |
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| 28 | .data ALIGN(0x4) : { |
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| 29 | *(.reset_data) |
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| 30 | . = ALIGN(0x4); |
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| 31 | dtb_addr = .; |
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| 32 | INCLUDE "objs/platform.ld"; |
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| 33 | } |
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| 34 | } |
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