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ata: add AMD Seattle platform driver

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AMD Seattle SATA controller mostly conforms to AHCI interface with some
special register to control SGPIO interface. In the case of an AHCI
controller, the SGPIO feature is ideally implemented using the
"Enclosure Management" register of the AHCI controller, but those
registeres are not implemented in the Seattle SoC. Instead SoC
(Rev B0 onwards) provides a 32-bit SGPIO control register which should
be programmed to control the activity, locate and fault LEDs.

The driver is based on ahci_platform driver.

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
CC: tj@kernel.org
CC: linux-ide@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Brijesh Singh
2016-01-14 10:31:11 -06:00
committed by Tejun Heo
parent bb4add2ce9
commit 535dac4ab5
3 changed files with 219 additions and 0 deletions
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drivers/ata/Kconfig
+8
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@@ -202,6 +202,14 @@ config SATA_FSL
If unsure, say N.
config SATA_AHCI_SEATTLE
tristate "AMD Seattle 6.0Gbps AHCI SATA host controller support"
depends on ARCH_SEATTLE
help
This option enables support for AMD Seattle SATA host controller.
If unsure, say N
config SATA_INIC162X
tristate "Initio 162x SATA support (Very Experimental)"
depends on PCI