This patch updates include/asm-m32r/pgtable.h to add pgprot_noncached().
It is required to fix a problem of an userspace application, which mmaps
io registers.

This patch also modifies drivers/video/fbmem.c to support noncachable
framebuffer access for m32r.
In this routine, pgprot_writecombine() is used hopefully, even though
the current m32r never does write-combining or write-coalescing...

Please apply this.

	* include/asm-m32r/pgtable.h
	  (pgprot_noncached, pgprot_writecombine): Newly added.

	* drivers/video/fbmem.c (fb_mmap): Add m32r support.
Signed-off-by: Mamoru Sakugawa <sakugawa@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>