tree 2ded84b8cf87fb1a3497d66e8f651fe7abdd4c57
parent 089ebe09fb6ff765ba28be06ed11ee2323fdfaf5
author Anatolij Gustschin <agust@denx.de> 1295477192 +0000
committer Albert Aribaud <albert.aribaud@free.fr> 1296604483 +0100

SPI: mxc_spi: add SPI clock calculation and setup to the driver

The MXC SPI driver didn't calculate the SPI clock up to
now and just used highest possible divider 512 for DATA
RATE in the control register. This results in very low
transfer rates.

The patch adds code to calculate and setup the SPI clock
frequency for transfers.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Stefano Babic <sbabic@denx.de>