ahci: added support for Freescale AHCI sata

Freescale introduced QorIQ series SOCs, like ls1021 ls2085, with AHCI
sata support. It complies with the serial ATA 3.0 specification
and the AHCI 1.3 specification.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Yuantian Tang <Yuantian.Tang@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index c2340ee..a232181 100644 (file)
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -16,6 +16,8 @@ Required properties:
   - "snps,dwc-ahci"
   - "snps,exynos5440-ahci"
   - "snps,spear-ahci"
+  - "fsl,qoriq-ahci" : for qoriq series socs which include ls1021, ls2085, etc.
+  - "fsl,<chip>-ahci" : chip could be ls1021, ls2085 etc.
   - "generic-ahci"
 - interrupts        : <interrupt mapping for SATA IRQ>
 - reg               : <registers mapping>

diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 78d6ae0..614c78f 100644 (file)
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -74,6 +74,7 @@ static const struct of_device_id ahci_of_match[] = {
        { .compatible = "ibm,476gtr-ahci", },
        { .compatible = "snps,dwc-ahci", },
        { .compatible = "hisilicon,hisi-ahci", },
+       { .compatible = "fsl,qoriq-ahci", },
        {},
 };
 MODULE_DEVICE_TABLE(of, ahci_of_match);