[PATCH] arm64: dts: marvell: add generic-ahci compatibles for CP110 ahci

[Russell King]

Testing with an Armada 8040 board shows that adding the generic-ahci
compatible to the CP110 AHCI nodes gets us working AHCI on the board.
A previous patch series posted by Thomas Petazzoni was retracted when
it was realised that the IP was supposed to be, and is, compatible
with the standard register layout.

Add this compatible.

Signed-off-by: Russell King <rmk+kernel at armlinux.org.uk>
---
 arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi | 3 ++-
 arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
index 464b491c7291..65ad781d7910 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
@@ -128,7 +128,8 @@
 			};
 
 			cpm_sata0: sata at 540000 {
-				compatible = "marvell,armada-8k-ahci";
+				compatible = "marvell,armada-8k-ahci",
+					     "generic-ahci";
 				reg = <0x540000 0x30000>;
 				interrupts = <ICU_GRP_NSR 107 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&cpm_syscon0 1 15>;
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
index b10f4781d8fb..168d667d50a3 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
@@ -128,7 +128,8 @@
 			};
 
 			cps_sata0: sata at 540000 {
-				compatible = "marvell,armada-8k-ahci";
+				compatible = "marvell,armada-8k-ahci",
+					     "generic-ahci";
 				reg = <0x540000 0x30000>;
 				interrupts = <ICU_GRP_NSR 107 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&cps_syscon0 1 15>;
-- 
2.7.4