Marius Strobl db6bbcd2dc - Change some softc members to be unsigned where more appropriate.
- Add some missing const.
- Move the size of the window spun by the registers to the softc
  as neither using va_mem_size for this nor va_mem_base for the
  start of the bus addresses is appropriate.

MFC after:	1 week
2009-04-28 20:49:47 +00:00
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