Currently we only support oldschool IDE SFF devices. This is done
by registering a register layout struct and everything else is done
by the generic IDE SFF driver. Since modern ATA devices still use
ATA, but not the SFF interface anymore, split out the IDE SFF support
to a separate file to allow for other types of ata interfaces.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Straight forward driver, we only have to configure some additional
bits and then use the generic ide support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>