ata: ahci: refactor init functions ...

Fold ahci_host_init and __ahci_host_init into ahci_add_host

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ata: ahci: implement init callback ...

Now that we have framework support for delayed probing of
ata devices implement it in the ahci driver to actually make use
of it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ata: ahci: fix wrong link check ...

The following commit accidently bailed out if the link is up, not
when it's down as stated in the commit message.

| commit a3f74d9
| Author: Rob Herring <rob.herring@calxeda.com>
| Date:   Mon Feb 11 18:02:00 2013 +0100
|
|     ahci: handle COMINIT received during spin-up
|
|     Some Intel SSDs can send a COMINIT after the initial COMRESET. This causes
|     the link to go down and we need to re-initialize the link.
|
|     Signed-off-by: Rob Herring <rob.herring@calxeda.com>
|     Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
|     Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

ahci-generic: add oftree support ...

calxeda use the generic driver but have it's own compatible cf Linux kernel
Documentation

Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ahci: handle COMINIT received during spin-up ...

Some Intel SSDs can send a COMINIT after the initial COMRESET. This causes
the link to go down and we need to re-initialize the link.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Use new device_platform_driver() macro for drivers ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ata: Add ahci support ...

This adds ahci controller support based on U-Boot ahci support. Unlike
U-Boot we do not push the SCSI layer in between, but use the ata interface
directly. Tested on a Freescale i.MX53.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>