diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt
new file mode 100644
index 0000000000000000000000000000000000000000..77ca635765e1323beeac680ea427efbd4252cef3
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt
@@ -0,0 +1,12 @@
+Altera SOCFPGA SDRAM Controller
+
+Required properties:
+- compatible : Should contain "altr,sdr-ctl" and "syscon".
+  syscon is required by the Altera SOCFPGA SDRAM EDAC.
+- reg : Should contain 1 register range (address and length)
+
+Example:
+	sdr: sdr@ffc25000 {
+		compatible = "altr,sdr-ctl", "syscon";
+		reg = <0xffc25000 0x1000>;
+	};
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 9b653edd003fbfb7dbfb5bc623b3cc44cf95e47d..80f924deed37457409fff03e7924894ead9e4601 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -36,6 +36,7 @@
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		enable-method = "altr,socfpga-smp";
 
 		cpu@0 {
 			compatible = "arm,cortex-a9";
diff --git a/arch/arm/boot/dts/socfpga_arria10.dtsi b/arch/arm/boot/dts/socfpga_arria10.dtsi
index abf97630c5928b0d88a67539a93a860da60abe3c..6ceb26e542ec11f2d3815ed907bf5d1ae2c71790 100644
--- a/arch/arm/boot/dts/socfpga_arria10.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10.dtsi
@@ -24,6 +24,7 @@
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		enable-method = "altr,socfpga-a10-smp";
 
 		cpu@0 {
 			compatible = "arm,cortex-a9";
@@ -567,6 +568,11 @@
 			reg = <0xffd05000 0x100>;
 		};
 
+		scu: snoop-control-unit@ffffc000 {
+			compatible = "arm,cortex-a9-scu";
+			reg = <0xffffc000 0x100>;
+		};
+
 		sysmgr: sysmgr@ffd06000 {
 			compatible = "altr,sys-mgr", "syscon";
 			reg = <0xffd06000 0x300>;
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts b/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts
index a1814b4574509e10026b2702125cd9b3c9edbb17..019dd2fea208c300baf698052d8c5e24a63b0298 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts
@@ -30,12 +30,23 @@
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */
 	};
+
+	leds: gpio-leds {
+	};
 };
 
 &gmac1 {
 	status = "okay";
 };
 
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
 &i2c0 {
 	status = "okay";
 
@@ -45,6 +56,26 @@
 	};
 };
 
+&leds {
+	compatible = "gpio-leds";
+
+	led@0 {
+		label = "led:green:heartbeat";
+		gpios = <&porta 28 1>;
+		linux,default-trigger = "heartbeat";
+	};
+
+	led@1 {
+		label = "led:green:D7";
+		gpios = <&portb 19 1>;
+	};
+
+	led@2 {
+		label = "led:green:D8";
+		gpios = <&portb 25 1>;
+	};
+};
+
 &mmc {
 	status = "okay";
 };