On Wed, Apr 11, 2001 at 01:12:28AM +0200, Klaus Borchers wrote:
> Unless this changed from Kernel 2.2 to 2,4, I think the main problem is that
> /dev/mem only maps physical *RAM* (0xc0000000 + xMb, possibly with holes in it
> if you use several banks on an SA1110).
No. You can map any physical address using /dev/mem. Pass the physical
address as the offset in your mmap() call. In order for it not to be cached
or buffered, open /dev/mem with the O_SYNC flag.
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