[U-Boot] [PATCH] DaVinci: Improve DaVinci SPI speed.

[Paulraj, Sandeep]

> 
> I have updated this patch based on the comments [1] by Wolfgang Denk and
> removed unused variables.
> [1][http://lists.denx.de/pipermail/u-boot/2010-May/071728.html]
> 
> Reduce the number of reads per byte transferred on the BUF register from 2
> to 1 and
> take advantage of the TX buffer in the SPI module. On LogicPD OMAP-L138
> EVM,
> SPI read throughput goes up from ~0.8Mbyte/s to ~1.3Mbyte/s. Tested with a
> 2Mbyte image file.
> Remove unused variables in the spi_xfer() function.
> 
> Signed-off-by: Delio Brignoli <dbrignoli at audioscience.com>
> Tested-by: Ben Gardiner <bengardiner at nanometrics.ca>
> ---


Checkpatch returned 4 errors.

Please fix and resubmit

Thanks,
Sandeep