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* asm-generic: fix inX/outX functions for architectures that have PCIGuanXuetao2011-03-171-14/+19
| | | | | | | | | | The definitions for the PC-style PIO functions in asm-generic/io.h were meant as dummies so you could compile code on architectures without ISA and PCI buses. However, unicore32 actually wants to use them with a real PCI bus, so they need to be defined to actually address the register window holding the I/O ports. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* asm-generic/io.h: add reads[bwl]/writes[bwl] helpersMike Frysinger2011-01-101-0/+30
| | | | | | | | | A bunch of arches define reads[bwl]/writes[bwl] helpers for accessing memory mapped registers. Since the Blackfin ones aren't specific to Blackfin code, move them to the common asm-generic/io.h for people. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* asm-generic/io.h: allow people to override individual funcsMike Frysinger2010-10-181-0/+26
| | | | | | | | | | For the Blackfin port, we can use much of the asm-generic/io.h header, but we still need to declare some of our own versions of functions. Like the __raw_read* and in/out "string" helpers. So let people do this easily for many of these funcs. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* asm-generic/io.h: add big endian versions of io{read,write}{16,32}Mike Frysinger2010-08-101-0/+4
| | | | | | | | | | The asm-generic/iomap.h provides these functions already, but the non-generic fallback defines do not. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* asm-generic: add generic atomic.h and io.hArnd Bergmann2009-06-111-0/+300
atomic.h and io.h are based on the mn10300 architecture, which is already pretty generic and can be used by other architectures that do not have hardware support for atomic operations or out-of-order I/O access. Signed-off-by: Arnd Bergmann <arnd@arndb.de>