memory on ARM

[Russell King - ARM Linux]

On Fri, Jan 28, 2011 at 10:05:57PM -0800, hong zhang wrote:
> > That's because you've told it that there's 1024M + 128M,
> > and it's claimed
> > 50MB from that for VRAM.
> 
> But kernel says ignoring 128M at 0xC0000000. That means kernel knows
> physical memory 128M at 0xC0000000 is not presented and ignores it.

No.  The kernel ignores it because it can't use it in the configuration
you've given.  It has precisely *nothing* to do with whether memory
is actually present or not.