ARM: dts: Keystone: add ECC error handler support

Add emif node for keystone2 devices, which is used for ECC support.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
[t-kristo@ti.com: made emif enabled by default for all keystone2 devices]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/keystone-k2g.dtsi

@@ -603,5 +603,11 @@ wdt: wdt@02250000 {
 			power-domains = <&k2g_pds 0x22>;
 			clocks = <&k2g_clks 0x22 0>;
 		};
+
+		emif: emif@21010000 {
+			compatible = "ti,emif-keystone";
+			reg = <0x21010000 0x200>;
+			interrupts = <GIC_SPI 123 IRQ_TYPE_EDGE_RISING>;
+		};
 	};
 };

arch/arm/boot/dts/keystone.dtsi

@@ -343,5 +343,12 @@ pcie_intc0: legacy-interrupt-controller {
 					<GIC_SPI 29 IRQ_TYPE_EDGE_RISING>;
 			};
 		};
+
+		emif: emif@21010000 {
+			compatible = "ti,emif-keystone";
+			reg = <0x21010000 0x200>;
+			interrupts = <GIC_SPI 448 IRQ_TYPE_EDGE_RISING>;
+			interrupt-parent = <&gic>;
+		};
 	};
 };