diff --git a/src/arm/broadcom/bcm2711-rpi-cm4-io.dts b/src/arm/broadcom/bcm2711-rpi-cm4-io.dts
new file mode 100644
index 0000000..d7ba02f
--- /dev/null
+++ b/src/arm/broadcom/bcm2711-rpi-cm4-io.dts
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+#include "bcm2711-rpi-cm4.dtsi"
+#include "bcm283x-rpi-led-deprecated.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
+
+/ {
+	model = "Raspberry Pi Compute Module 4 IO Board";
+};
+
+&ddc0 {
+	status = "okay";
+};
+
+&ddc1 {
+	status = "okay";
+};
+
+&gpio {
+	/*
+	 * Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
+	 * the official GPU firmware DT blob.
+	 *
+	 * Legend:
+	 * "FOO" = GPIO line named "FOO" on the schematic
+	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
+	 */
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
+			  "SDA1",
+			  "SCL1",
+			  "GPIO_GCLK",
+			  "GPIO5",
+			  "GPIO6",
+			  "SPI_CE1_N",
+			  "SPI_CE0_N",
+			  "SPI_MISO",
+			  "SPI_MOSI",
+			  "SPI_SCLK",
+			  "GPIO12",
+			  "GPIO13",
+			  /* Serial port */
+			  "TXD1",
+			  "RXD1",
+			  "GPIO16",
+			  "GPIO17",
+			  "GPIO18",
+			  "GPIO19",
+			  "GPIO20",
+			  "GPIO21",
+			  "GPIO22",
+			  "GPIO23",
+			  "GPIO24",
+			  "GPIO25",
+			  "GPIO26",
+			  "GPIO27",
+			  "RGMII_MDIO",
+			  "RGMIO_MDC",
+			  /* Used by BT module */
+			  "CTS0",
+			  "RTS0",
+			  "TXD0",
+			  "RXD0",
+			  /* Used by Wifi */
+			  "SD1_CLK",
+			  "SD1_CMD",
+			  "SD1_DATA0",
+			  "SD1_DATA1",
+			  "SD1_DATA2",
+			  "SD1_DATA3",
+			  /* Shared with SPI flash */
+			  "PWM0_MISO",
+			  "PWM1_MOSI",
+			  "STATUS_LED_G_CLK",
+			  "SPIFLASH_CE_N",
+			  "SDA0",
+			  "SCL0",
+			  "RGMII_RXCLK",
+			  "RGMII_RXCTL",
+			  "RGMII_RXD0",
+			  "RGMII_RXD1",
+			  "RGMII_RXD2",
+			  "RGMII_RXD3",
+			  "RGMII_TXCLK",
+			  "RGMII_TXCTL",
+			  "RGMII_TXD0",
+			  "RGMII_TXD1",
+			  "RGMII_TXD2",
+			  "RGMII_TXD3";
+};
+
+&hdmi0 {
+	status = "okay";
+};
+
+&hdmi1 {
+	status = "okay";
+};
+
+&genet {
+	status = "okay";
+};
+
+&led_act {
+	gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+};
+
+&leds {
+	led-pwr {
+		label = "PWR";
+		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+		default-state = "keep";
+		linux,default-trigger = "default-on";
+	};
+};
+
+&pixelvalve0 {
+	status = "okay";
+};
+
+&pixelvalve1 {
+	status = "okay";
+};
+
+&pixelvalve2 {
+	status = "okay";
+};
+
+&pixelvalve4 {
+	status = "okay";
+};
+
+&vc4 {
+	status = "okay";
+};
+
+&vec {
+	status = "disabled";
+};