tree 1d5fd7da4a7919596bd81e0136d96679196e1152
parent 71cebd700257a4f644066631bf02187d8f67817e
author Mika Westerberg <mika.westerberg@iki.fi> 1306663806 +0300
committer Grant Likely <grant.likely@secretlab.ca> 1307569572 -0600

spi/ep93xx: add DMA support

This patch adds DMA support for the EP93xx SPI driver. By default the DMA is
not enabled but it can be enabled by setting ep93xx_spi_info.use_dma to true
in board configuration file.

Note that the SPI driver still uses PIO for small transfers (<= 8 bytes) for
performance reasons.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>