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

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@audioscience.com Tested-by: Ben Gardiner bengardiner@nanometrics.ca

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Checkpatch returned 4 errors.

Please fix and resubmit

Thanks, Sandeep