Squashed 'dts/upstream/' content from commit aaba2d45dc2a

git-subtree-dir: dts/upstream
git-subtree-split: aaba2d45dc2a1b3bbb710f2a3808ee1c9f340abe
diff --git a/src/arm/intel/ixp/intel-ixp42x.dtsi b/src/arm/intel/ixp/intel-ixp42x.dtsi
new file mode 100644
index 0000000..84cee8e
--- /dev/null
+++ b/src/arm/intel/ixp/intel-ixp42x.dtsi
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for Intel XScale Network Processors
+ * in the IXP 42x series. This series has 32 interrupts.
+ */
+#include "intel-ixp4xx.dtsi"
+
+/ {
+	soc {
+		bus@c4000000 {
+			compatible = "intel,ixp42x-expansion-bus-controller", "syscon";
+			reg = <0xc4000000 0x30>;
+		};
+
+		pci@c0000000 {
+			compatible = "intel,ixp42x-pci";
+		};
+
+		interrupt-controller@c8003000 {
+			compatible = "intel,ixp42x-interrupt";
+		};
+
+		/*
+		 * This is the USB Device Mode (UDC) controller, which is used
+		 * to present the IXP4xx as a device on a USB bus.
+		 */
+		usb@c800b000 {
+			compatible = "intel,ixp4xx-udc";
+			reg = <0xc800b000 0x1000>;
+			interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+	};
+};