The PATA support patch for sata_promise appears, from
code inspection, to break the PATA-only 20619 chip.
The patch removes the SATA flag from the TX2plus SATA+PATA
boards' common flags, with the intention of adding it back
via the _port_flags[] entries for those boards' SATA ports.
However, it unconditionally marks ports 0 and 1 as SATA
for all boards. This causes the 20619 (TX4000) to announce
its first two PATA ports as SATA | ATA_FLAG_SLAVE_POSS.
I don't have a TX4000 so I don't know what the actual
consequences of this bug are, but surely this isn't Ok.
Fixed by moving the port 0 and 1 settings as SATA into
the TX4 and TX2plus specific initialisation code.
Signed-off-by: Mikael Pettersson <mikpe@xxxxxxxx>