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Re: EDB7312 - Linux booting


On Mon, 2003-02-10 at 22:53, Jonathan Larmour wrote:

> Ah I see, and otherwise Linux can't use that bottom of memory because 
> CYGMEM_REGION_ram will be relative to that 0x2900 extra bit. Gotcha.
> 
> In that case it's definitely better to let the platform just override. Too 
> may weird conditions to worry about!

It's also very useful for platforms like the combination of an SA1110
and SDRAM chips which results into the following physical memory space:

  2MB mem - 2MB hole - 2MB mem ... 2MB mem - 112MB hole - 2MB mem - ...

or more generally when virt(physaddr) != physaddr + good_offset
 
-- 
rnf



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