diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index ccf1ba57fa87..7acce22434a8 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -9,6 +9,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-g12a-sei510.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12a-u200.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12a-x96-max.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-a311d-khadas-vim3.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-g12b-bananapi-cm4-cm4io.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gsking-x.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking-pro.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking.dtb
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-bananapi-cm4-cm4io.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-bananapi-cm4-cm4io.dts
new file mode 100644
index 000000000000..1b0c3881c6a1
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-bananapi-cm4-cm4io.dts
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Neil Armstrong <neil.armstrong@linaro.org>
+ */
+
+/dts-v1/;
+
+#include "meson-g12b-bananapi-cm4.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
+
+/ {
+	compatible = "bananapi,bpi-cm4io", "bananapi,bpi-cm4", "amlogic,a311d", "amlogic,g12b";
+	model = "BananaPi BPI-CM4IO Baseboard with BPI-CM4 Module";
+
+	aliases {
+		ethernet0 = &ethmac;
+		i2c0 = &i2c1;
+		i2c1 = &i2c3;
+	};
+
+	adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 2>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1710000>;
+
+		button-function {
+			label = "Function";
+			linux,code = <KEY_FN>;
+			press-threshold-microvolt = <10000>;
+		};
+	};
+
+	hdmi_connector: hdmi-connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_tmds_out>;
+			};
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-blue {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		led-green {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	sound {
+		compatible = "amlogic,axg-sound-card";
+		model = "BPI-CM4IO";
+		audio-aux-devs = <&tdmout_b>;
+		audio-routing =	"TDMOUT_B IN 0", "FRDDR_A OUT 1",
+				"TDMOUT_B IN 1", "FRDDR_B OUT 1",
+				"TDMOUT_B IN 2", "FRDDR_C OUT 1",
+				"TDM_B Playback", "TDMOUT_B OUT";
+
+		assigned-clocks = <&clkc CLKID_MPLL2>,
+				  <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+
+		dai-link-0 {
+			sound-dai = <&frddr_a>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&frddr_b>;
+		};
+
+		dai-link-2 {
+			sound-dai = <&frddr_c>;
+		};
+
+		/* 8ch hdmi interface */
+		dai-link-3 {
+			sound-dai = <&tdmif_b>;
+			dai-format = "i2s";
+			dai-tdm-slot-tx-mask-0 = <1 1>;
+			dai-tdm-slot-tx-mask-1 = <1 1>;
+			dai-tdm-slot-tx-mask-2 = <1 1>;
+			dai-tdm-slot-tx-mask-3 = <1 1>;
+			mclk-fs = <256>;
+
+			codec {
+				sound-dai = <&tohdmitx TOHDMITX_I2S_IN_B>;
+			};
+		};
+
+		/* hdmi glue */
+		dai-link-4 {
+			sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>;
+
+			codec {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&cecb_AO {
+	status = "okay";
+};
+
+&ethmac {
+	status = "okay";
+};
+
+&hdmi_tx {
+	status = "okay";
+};
+
+&hdmi_tx_tmds_port {
+	hdmi_tx_tmds_out: endpoint {
+		remote-endpoint = <&hdmi_connector_in>;
+	};
+};
+
+/* CSI port */
+&i2c1 {
+	status = "okay";
+};
+
+/* DSI port for touchscreen */
+&i2c3 {
+	status = "okay";
+};
+
+/* miniPCIe port with USB + SIM slot */
+&pcie {
+	status = "okay";
+};
+
+&sd_emmc_b {
+	status = "okay";
+};
+
+&tohdmitx {
+	status = "okay";
+};
+
+/* Peripheral Only USB-C port */
+&usb {
+	dr_mode = "peripheral";
+
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-bananapi-cm4.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-bananapi-cm4.dtsi
new file mode 100644
index 000000000000..97e522921b06
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-bananapi-cm4.dtsi
@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Neil Armstrong <neil.armstrong@linaro.org>
+ */
+
+#include "meson-g12b-a311d.dtsi"
+#include <dt-bindings/gpio/meson-g12a-gpio.h>
+
+/ {
+	aliases {
+		serial0 = &uart_AO;
+		rtc1 = &vrtc;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	emmc_pwrseq: emmc-pwrseq {
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x40000000>;
+	};
+
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpio GPIOAO_6 GPIO_ACTIVE_LOW>;
+		clocks = <&wifi32k>;
+		clock-names = "ext_clock";
+	};
+
+	emmc_1v8: regulator-emmc-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "EMMC_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vddao_3v3>;
+		regulator-always-on;
+	};
+
+	dc_in: regulator-dc-in {
+		compatible = "regulator-fixed";
+		regulator-name = "DC_IN";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
+	vddio_c: regulator-vddio-c {
+		compatible = "regulator-gpio";
+		regulator-name = "VDDIO_C";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		enable-gpio = <&gpio_ao GPIOAO_3 GPIO_OPEN_DRAIN>;
+		enable-active-high;
+		regulator-always-on;
+
+		gpios = <&gpio_ao GPIOAO_9 GPIO_OPEN_DRAIN>;
+		gpios-states = <1>;
+
+		states = <1800000 0>,
+			 <3300000 1>;
+	};
+
+	vddao_1v8: regulator-vddao-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "VDDAO_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vddao_3v3>;
+		regulator-always-on;
+	};
+
+	vddao_3v3: regulator-vddao-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "VDDAO_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&dc_in>;
+		regulator-always-on;
+	};
+
+	vddcpu_a: regulator-vddcpu-a {
+		/*
+		 * MP8756GD DC/DC Regulator.
+		 */
+		compatible = "pwm-regulator";
+
+		regulator-name = "VDDCPU_A";
+		regulator-min-microvolt = <680000>;
+		regulator-max-microvolt = <1040000>;
+
+		pwm-supply = <&dc_in>;
+
+		pwms = <&pwm_ab 0 1250 0>;
+		pwm-dutycycle-range = <100 0>;
+
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	vddcpu_b: regulator-vddcpu-b {
+		/*
+		 * SY8120B1ABC DC/DC Regulator.
+		 */
+		compatible = "pwm-regulator";
+
+		regulator-name = "VDDCPU_B";
+		regulator-min-microvolt = <680000>;
+		regulator-max-microvolt = <1040000>;
+
+		pwm-supply = <&dc_in>;
+
+		pwms = <&pwm_AO_cd 1 1250 0>;
+		pwm-dutycycle-range = <100 0>;
+
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	wifi32k: wifi32k {
+		compatible = "pwm-clock";
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+		pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
+	};
+};
+
+&arb {
+	status = "okay";
+};
+
+&clkc_audio {
+	status = "okay";
+};
+
+&cec_AO {
+	pinctrl-0 = <&cec_ao_a_h_pins>;
+	pinctrl-names = "default";
+	hdmi-phandle = <&hdmi_tx>;
+};
+
+&cecb_AO {
+	pinctrl-0 = <&cec_ao_b_h_pins>;
+	pinctrl-names = "default";
+	hdmi-phandle = <&hdmi_tx>;
+};
+
+&cpu0 {
+	cpu-supply = <&vddcpu_b>;
+	operating-points-v2 = <&cpu_opp_table_0>;
+	clocks = <&clkc CLKID_CPU_CLK>;
+	clock-latency = <50000>;
+};
+
+&cpu1 {
+	cpu-supply = <&vddcpu_b>;
+	operating-points-v2 = <&cpu_opp_table_0>;
+	clocks = <&clkc CLKID_CPU_CLK>;
+	clock-latency = <50000>;
+};
+
+&cpu100 {
+	cpu-supply = <&vddcpu_a>;
+	operating-points-v2 = <&cpub_opp_table_1>;
+	clocks = <&clkc CLKID_CPUB_CLK>;
+	clock-latency = <50000>;
+};
+
+&cpu101 {
+	cpu-supply = <&vddcpu_a>;
+	operating-points-v2 = <&cpub_opp_table_1>;
+	clocks = <&clkc CLKID_CPUB_CLK>;
+	clock-latency = <50000>;
+};
+
+&cpu102 {
+	cpu-supply = <&vddcpu_a>;
+	operating-points-v2 = <&cpub_opp_table_1>;
+	clocks = <&clkc CLKID_CPUB_CLK>;
+	clock-latency = <50000>;
+};
+
+&cpu103 {
+	cpu-supply = <&vddcpu_a>;
+	operating-points-v2 = <&cpub_opp_table_1>;
+	clocks = <&clkc CLKID_CPUB_CLK>;
+	clock-latency = <50000>;
+};
+
+&ext_mdio {
+	external_phy: ethernet-phy@0 {
+		/* Realtek RTL8211F (0x001cc916) */
+		reg = <0>;
+		max-speed = <1000>;
+
+		interrupt-parent = <&gpio_intc>;
+		/* MAC_INTR on GPIOZ_14 */
+		interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
+/* Ethernet to be enabled in baseboard DT */
+&ethmac {
+	pinctrl-0 = <&eth_pins>, <&eth_rgmii_pins>;
+	pinctrl-names = "default";
+	phy-mode = "rgmii-txid";
+	phy-handle = <&external_phy>;
+};
+
+&frddr_a {
+	status = "okay";
+};
+
+&frddr_b {
+	status = "okay";
+};
+
+&frddr_c {
+	status = "okay";
+};
+
+/* HDMI to be enabled in baseboard DT */
+&hdmi_tx {
+	pinctrl-0 = <&hdmitx_hpd_pins>, <&hdmitx_ddc_pins>;
+	pinctrl-names = "default";
+	hdmi-supply = <&dc_in>;
+};
+
+/* "Camera" I2C bus */
+&i2c1 {
+	pinctrl-0 = <&i2c1_sda_h6_pins>, <&i2c1_sck_h7_pins>;
+	pinctrl-names = "default";
+};
+
+/* Main I2C bus */
+&i2c2 {
+	pinctrl-0 = <&i2c2_sda_x_pins>, <&i2c2_sck_x_pins>;
+	pinctrl-names = "default";
+};
+
+/* "ID" I2C bus */
+&i2c3 {
+	pinctrl-0 = <&i2c3_sda_a_pins>, <&i2c3_sck_a_pins>;
+	pinctrl-names = "default";
+};
+
+&pcie {
+	reset-gpios = <&gpio GPIOA_8 GPIO_ACTIVE_LOW>;
+};
+
+&pwm_ab {
+	pinctrl-0 = <&pwm_a_e_pins>;
+	pinctrl-names = "default";
+	clocks = <&xtal>;
+	clock-names = "clkin0";
+
+	status = "okay";
+};
+
+&pwm_ef {
+	pinctrl-0 = <&pwm_e_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&pwm_AO_cd {
+	pinctrl-0 = <&pwm_ao_d_e_pins>;
+	pinctrl-names = "default";
+	clocks = <&xtal>;
+	clock-names = "clkin1";
+
+	status = "okay";
+};
+
+&saradc {
+	vref-supply = <&vddao_1v8>;
+
+	status = "okay";
+};
+
+/* on-module SDIO WiFi */
+&sd_emmc_a {
+	pinctrl-0 = <&sdio_pins>;
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	bus-width = <4>;
+	sd-uhs-sdr104;
+	max-frequency = <50000000>;
+
+	non-removable;
+	disable-wp;
+
+	/* WiFi firmware requires power in suspend */
+	keep-power-in-suspend;
+
+	mmc-pwrseq = <&sdio_pwrseq>;
+
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddao_3v3>;
+
+	status = "okay";
+
+	rtl8822cs: wifi@1 {
+		reg = <1>;
+	};
+};
+
+/* SD card to be enabled in baseboard DT */
+&sd_emmc_b {
+	pinctrl-0 = <&sdcard_c_pins>;
+	pinctrl-1 = <&sdcard_clk_gate_c_pins>;
+	pinctrl-names = "default", "clk-gate";
+
+	bus-width = <4>;
+	cap-sd-highspeed;
+	max-frequency = <50000000>;
+	disable-wp;
+
+	cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddio_c>;
+};
+
+/* on-module eMMC */
+&sd_emmc_c {
+	pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_8b_pins>, <&emmc_ds_pins>;
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	mmc-ddr-1_8v;
+	mmc-hs200-1_8v;
+	max-frequency = <200000000>;
+	disable-wp;
+
+	mmc-pwrseq = <&emmc_pwrseq>;
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddao_1v8>;
+
+	status = "okay";
+};
+
+&tdmif_b {
+	status = "okay";
+};
+
+&tdmout_b {
+	status = "okay";
+};
+
+/* on-module UART BT */
+&uart_A {
+	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
+	pinctrl-names = "default";
+	uart-has-rtscts;
+
+	status = "okay";
+
+	bluetooth {
+		compatible = "realtek,rtl8822cs-bt";
+		enable-gpios  = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
+		host-wake-gpios = <&gpio GPIOX_19 GPIO_ACTIVE_HIGH>;
+		device-wake-gpios = <&gpio GPIOX_18 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&uart_AO {
+	pinctrl-0 = <&uart_ao_a_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&usb {
+	phys = <&usb2_phy0>, <&usb2_phy1>;
+	phy-names = "usb2-phy0", "usb2-phy1";
+};
