[PATCH 2/4] xilinx_spi: Switch to iomem functions and support little endian.

[Josh Boyer]

On Wed, Nov 11, 2009 at 03:38:34PM +0100, Richard Röjfors wrote:
>This patch changes the out_(be)(8|16|32) and in_(be)(8|16|32) calls to iowrite(8|16|32)
>and ioread(8|16|32). This to be able to build on platforms not supporting the in/out calls
>for instance x86.
>
>Support is also added for little endian writes. In some systems the registers should be
>accessed little endian rather than big endian.

I wonder if you should make the endianness a config option.  Right now you
have a conditional check for every read and write.  Does that impact
performance at all?

josh