From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 12 Feb 2007 15:28:56 +0000 (+0100)
Subject: [AVR32] Make I/O access macros work with external devices
X-Git-Tag: v2.6.22-rc1~1131^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3e7d8d4ea37b8372ee417452d03171c5dc55125;p=pandora-kernel.git

[AVR32] Make I/O access macros work with external devices

Fix the I/O access macros so that they work with externally connected
devices accessed in little-endian mode over any bus width:

* Use a set of macros to define I/O port- and memory operations
  borrowed from MIPS.
* Allow subarchitecture to specify address- and data-mangling
* Implement at32ap-specific port mangling (with build-time
  configurable bus width. Only one bus width at a time supported
  for now.)
* Rewrite iowriteN and friends to use write[bwl] and friends
  (not the __raw counterparts.)

This has been tested using pata_pcmcia to access a CompactFlash card
connected to the EBI (16-bit bus width.)

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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