arm: kirkwood: convert QNAP TS219 to use DT for the PCIe interface

Now that the PCIe mvebu driver is usable on Kirkwood, use it instead
of the legacy PCIe code, since it allows to describe the PCIe
interfaces in the Device Tree.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-ts219-6281.dts

@@ -1,7 +1,8 @@
 /dts-v1/;
 
-/include/ "kirkwood-ts219.dtsi"
+/include/ "kirkwood.dtsi"
 /include/ "kirkwood-6281.dtsi"
+/include/ "kirkwood-ts219.dtsi"
 
 / {
 	ocp@f1000000 {

arch/arm/boot/dts/kirkwood-ts219-6282.dts

@@ -1,7 +1,8 @@
 /dts-v1/;
 
-/include/ "kirkwood-ts219.dtsi"
+/include/ "kirkwood.dtsi"
 /include/ "kirkwood-6282.dtsi"
+/include/ "kirkwood-ts219.dtsi"
 
 / {
 	ocp@f1000000 {

arch/arm/boot/dts/kirkwood-ts219.dtsi

@@ -1,5 +1,3 @@
-/include/ "kirkwood.dtsi"
-
 / {
 	model = "QNAP TS219 family";
 	compatible = "qnap,ts219", "marvell,kirkwood";
@@ -74,5 +72,12 @@
 			status = "okay";
 			nr-ports = <2>;
 		};
+		pcie-controller {
+			status = "okay";
+
+			pcie@1,0 {
+				status = "okay";
+			};
+		};
 	};
 };

arch/arm/mach-kirkwood/board-ts219.c

@@ -41,13 +41,3 @@ void __init qnap_dt_ts219_init(void)
 
 	pm_power_off = qnap_tsx1x_power_off;
 }
-
-/* FIXME: Will not work with DT. Maybe use MPP40_GPIO? */
-static int __init ts219_pci_init(void)
-{
-	if (machine_is_ts219())
-		kirkwood_pcie_init(KW_PCIE0);
-
-	return 0;
-}
-subsys_initcall(ts219_pci_init);