ralink: fix pcie reset

some old mt7620a uboots dont reset the pcie core properly. work around this
issue in the kernel driver.

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 43292

target/linux/ramips/dts/mt7620a.dtsi

@@ -302,8 +302,8 @@
 		};
 		i2c_pins: i2c {
 			i2c {
-				lantiq,group = "i2c";
-				lantiq,function = "i2c";
+				ralink,group = "i2c";
+				ralink,function = "i2c";
 			};
 		};
 		uartlite_pins: uartlite {
@@ -342,6 +342,12 @@
 				ralink,function = "rgmii2";
 			};
 		};
+		pcie_pins: pcie {
+			pcie {
+				ralink,group = "pcie";
+				ralink,function = "pcie rst";
+			};
+		};
 	};
 
 	rstctrl: rstctrl {
@@ -443,6 +449,9 @@
 		interrupt-parent = <&cpuintc>;
 		interrupts = <4>;
 
+		pinctrl-names = "default";
+		pinctrl-0 = <&pcie_pins>;
+
 		device_type = "pci";
 
 		bus-range = <0 255>;