MX28: Split out the PIO and DMA transfer functions

Move DMA and PIO data transfer parts into separate functions.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <festevam@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
1 file changed