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

Paulraj, Sandeep s-paulraj at ti.com
Mon Jun 7 23:17:45 CEST 2010


> >
> > 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

I fixed them myself.

Pushed to u-boot-ti




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