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 c2340eeeb97ff072196dbcd49144897813b1573d..a2321819e7f5fb1613fa8c4ef3b092e87fe4e647 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 78d6ae0b90c400f807f18cdd6f4b6d214d175a32..614c78f510f049286f491d78ec9f3d395300a6f2 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);