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Altera_Forum
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21 years ago

uClinux .data segment in SDRAM?

For a number of reasons, I'd like to run my kernel in SRAM but allocate data memory (i.e. socket buffers) in SDRAM. This seems possible with a NIOS 'Hello World' application, or the like...
Altera_Forum's avatar
Altera_Forum
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21 years ago

The function free_area_init assumes the starting address is PAGE_OFFSET. You need to change the definition of PAGE_OFFSET to 0 (the minimum of the starting addresses of all your memory devices) in file include/asm-niosnommu/page.h.

Tell me if you have problems