ata: add platform driver for Calxeda AHCI controller
authorMark Langsdorf <mark.langsdorf@calxeda.com>
Thu, 6 Sep 2012 21:03:30 +0000 (16:03 -0500)
committerJeff Garzik <jgarzik@redhat.com>
Thu, 13 Sep 2012 05:09:41 +0000 (01:09 -0400)
commit8996b89d6bc98ae2f6d6e6e624a42a3f89d06949
tree2084f726d4a4b4ecc4db807fadcb2c529b73f776
parent100f586bd0959fe0e52b8a0b8cb49a3df1c6b044
ata: add platform driver for Calxeda AHCI controller

Calxeda highbank SATA phy has intermittent problems bringing up a link
with Gen3 drives. Retrying the phy hard reset can work-around this issue,
but each reset also disables spread spectrum support. The reset function
also needs to reprogram the phy to enable spread spectrum support.

Create a new driver based on ahci_platform to support the Calxeda Highbank
SATA controller.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Documentation/devicetree/bindings/arm/calxeda/combophy.txt [new file with mode: 0644]
Documentation/devicetree/bindings/ata/ahci-platform.txt
arch/arm/boot/dts/highbank.dts
drivers/ata/Kconfig
drivers/ata/Makefile
drivers/ata/ahci_platform.c
drivers/ata/sata_highbank.c [new file with mode: 0644]