mxs/spi: Decrement the DMA/PIO border

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This driver checks the length of transfer to be made and based
on this information, either chooses to transfer data via DMA or
PIO. Decrement this border further to gain better performace eg.
during SPI flash writes.

Empiric measurement shows that this gives extra 3kB/s write speed
with a M25P80 flash clocked at 40MHz.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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Marek Vasut 2012-09-04 04:40:17 +02:00 • committed by Mark Brown

parent 204e706fa2

commit 727c10e3e5

1 changed files with 1 additions and 1 deletions

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drivers/spi/spi-mxs.c

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