ARM: dts: ls1021a: add PCIe dts node

LS1021a contains two PCIe controllers. The patch adds their node to
dts file.
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/ls1021a.dtsi

@@ -560,5 +560,49 @@ usb3@3100000 {
 			dr_mode = "host";
 			snps,quirk-frame-length-adjustment = <0x20>;
 		};
+
+		pcie@3400000 {
+			compatible = "fsl,ls1021a-pcie", "snps,dw-pcie";
+			reg = <0x00 0x03400000 0x0 0x00010000   /* controller registers */
+			       0x40 0x00000000 0x0 0x00002000>; /* configuration space */
+			reg-names = "regs", "config";
+			interrupts = <GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */
+			fsl,pcie-scfg = <&scfg 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			num-lanes = <4>;
+			bus-range = <0x0 0xff>;
+			ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000   /* downstream I/O */
+				  0x82000000 0x0 0x40000000 0x40 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0000 0 0 1 &gic GIC_SPI 91  IRQ_TYPE_LEVEL_HIGH>,
+					<0000 0 0 2 &gic GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>,
+					<0000 0 0 3 &gic GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>,
+					<0000 0 0 4 &gic GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		pcie@3500000 {
+			compatible = "fsl,ls1021a-pcie", "snps,dw-pcie";
+			reg = <0x00 0x03500000 0x0 0x00010000   /* controller registers */
+			       0x48 0x00000000 0x0 0x00002000>; /* configuration space */
+			reg-names = "regs", "config";
+			interrupts = <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>;
+			fsl,pcie-scfg = <&scfg 1>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			num-lanes = <4>;
+			bus-range = <0x0 0xff>;
+			ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000   /* downstream I/O */
+				  0x82000000 0x0 0x40000000 0x48 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0000 0 0 1 &gic GIC_SPI 92  IRQ_TYPE_LEVEL_HIGH>,
+					<0000 0 0 2 &gic GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>,
+					<0000 0 0 3 &gic GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>,
+					<0000 0 0 4 &gic GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>;
+		};
 	};
 };