Merge tag 'tags/bcm2835-dt-next-2021-10-06' into devicetree/next

Stefan Wahren adds devicetree support for the Raspbery Pi Compute Module
4 and its IO board

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

16 files changed, 342 insertions, 137 deletions

diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
index 230b80d9d6cf..5dc48241efb3 100644
--- a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
@@ -19,6 +19,7 @@ properties:
         items:
           - enum:
               - raspberrypi,400
+              - raspberrypi,4-compute-module
               - raspberrypi,4-model-b
           - const: brcm,bcm2711
 
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml
index 32608578a352..c8b2459d64f6 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml
@@ -47,6 +47,9 @@ properties:
   interrupts:
     maxItems: 1
 
+  power-domains:
+    maxItems: 1
+
 required:
   - "#clock-cells"
   - compatible
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
index 031e35e76db2..48c8cad0d96d 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
@@ -51,6 +51,9 @@ properties:
   dma-names:
     const: audio-rx
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml
index 8a73780f573d..c55a8217de25 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml
@@ -24,6 +24,9 @@ properties:
   interrupts:
     maxItems: 1
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml
index 9b24081a0dbd..5d921e30394e 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml
@@ -24,6 +24,9 @@ properties:
   interrupts:
     maxItems: 1
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 2093b9d5cc71..921f481af454 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -92,6 +92,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
 	bcm2837-rpi-cm3-io3.dtb \
 	bcm2711-rpi-400.dtb \
 	bcm2711-rpi-4-b.dtb \
+	bcm2711-rpi-cm4-io.dtb \
 	bcm2835-rpi-zero.dtb \
 	bcm2835-rpi-zero-w.dtb
 dtb-$(CONFIG_ARCH_BCM_5301X) += \
diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index f24bdd0870a5..f94cac76713a 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -3,6 +3,7 @@
 #include "bcm2711.dtsi"
 #include "bcm2711-rpi.dtsi"
 #include "bcm283x-rpi-usb-peripheral.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
@@ -26,11 +27,6 @@
 		};
 	};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
-	};
-
 	sd_io_1v8_reg: sd_io_1v8_reg {
 		compatible = "regulator-gpio";
 		regulator-name = "vdd-sd-io";
@@ -56,6 +52,10 @@
 	};
 };
 
+&bt {
+	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
+};
+
 &ddc0 {
 	status = "okay";
 };
@@ -178,23 +178,6 @@
 	status = "okay";
 };
 
-/* SDHCI is used to control the SDIO for wireless */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	bus-width = <4>;
-	non-removable;
-	mmc-pwrseq = <&wifi_pwrseq>;
-	status = "okay";
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* EMMC2 is used to drive the SD card */
 &emmc2 {
 	vqmmc-supply = <&sd_io_1v8_reg>;
@@ -236,13 +219,6 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
 	uart-has-rtscts;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 /* uart1 is mapped to the pin header */
@@ -259,3 +235,7 @@
 &vec {
 	status = "disabled";
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm/boot/dts/bcm2711-rpi-cm4-io.dts b/arch/arm/boot/dts/bcm2711-rpi-cm4-io.dts
new file mode 100644
index 000000000000..19600b629be5
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2711-rpi-cm4-io.dts
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+#include "bcm2711-rpi-cm4.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
+
+/ {
+	model = "Raspberry Pi Compute Module 4 IO Board";
+
+	leds {
+		led-act {
+			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-pwr {
+			label = "PWR";
+			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+			default-state = "keep";
+			linux,default-trigger = "default-on";
+		};
+	};
+};
+
+&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";
+};
+
+&pixelvalve0 {
+	status = "okay";
+};
+
+&pixelvalve1 {
+	status = "okay";
+};
+
+&pixelvalve2 {
+	status = "okay";
+};
+
+&pixelvalve4 {
+	status = "okay";
+};
+
+&vc4 {
+	status = "okay";
+};
+
+&vec {
+	status = "disabled";
+};
diff --git a/arch/arm/boot/dts/bcm2711-rpi-cm4.dtsi b/arch/arm/boot/dts/bcm2711-rpi-cm4.dtsi
new file mode 100644
index 000000000000..a2954d466a73
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dtsi
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+#include "bcm2711.dtsi"
+#include "bcm2711-rpi.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
+
+/ {
+	compatible = "raspberrypi,4-compute-module", "brcm,bcm2711";
+
+	chosen {
+		/* 8250 auxiliary UART instead of pl011 */
+		stdout-path = "serial1:115200n8";
+	};
+
+	sd_io_1v8_reg: sd_io_1v8_reg {
+		compatible = "regulator-gpio";
+		regulator-name = "vdd-sd-io";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-settling-time-us = <5000>;
+		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
+		states = <1800000 0x1>,
+			 <3300000 0x0>;
+		status = "okay";
+	};
+
+	sd_vcc_reg: sd_vcc_reg {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		enable-active-high;
+		gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&bt {
+	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
+};
+
+/* EMMC2 is used to drive the eMMC */
+&emmc2 {
+	bus-width = <8>;
+	vqmmc-supply = <&sd_io_1v8_reg>;
+	vmmc-supply = <&sd_vcc_reg>;
+	broken-cd;
+	/* Even the IP block is limited to 100 MHz
+	 * this provides a throughput gain
+	 */
+	mmc-hs200-1_8v;
+	status = "okay";
+};
+
+&expgpio {
+	gpio-line-names = "BT_ON",
+			  "WL_ON",
+			  "PWR_LED_OFF",
+			  "ANT1",
+			  "VDD_SD_IO_SEL",
+			  "CAM_GPIO",
+			  "SD_PWR_ON",
+			  "ANT2";
+
+	ant1: ant1-hog {
+		gpio-hog;
+		gpios = <3 GPIO_ACTIVE_HIGH>;
+		/* internal antenna enabled */
+		output-high;
+		line-name = "ant1";
+	};
+
+	ant2: ant2-hog {
+		gpio-hog;
+		gpios = <7 GPIO_ACTIVE_HIGH>;
+		/* external antenna disabled */
+		output-low;
+		line-name = "ant2";
+	};
+};
+
+&genet {
+	phy-handle = <&phy1>;
+	phy-mode = "rgmii-rxid";
+	status = "okay";
+};
+
+&genet_mdio {
+	phy1: ethernet-phy@0 {
+		/* No PHY interrupt */
+		reg = <0x0>;
+	};
+};
+
+/* uart0 communicates with the BT module */
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
+	uart-has-rtscts;
+};
+
+/* uart1 is mapped to the pin header */
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_gpio14>;
+	status = "okay";
+};
+
+&wifi_pwrseq {
+	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
index 33b2b77aa47d..243236bc1e00 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
@@ -7,6 +7,7 @@
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
 #include "bcm283x-rpi-usb-otg.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
@@ -27,11 +28,10 @@
 			gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
 		};
 	};
+};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
-	};
+&bt {
+	shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
 };
 
 &gpio {
@@ -110,19 +110,7 @@
 };
 
 &sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
-	bus-width = <4>;
-	mmc-pwrseq = <&wifi_pwrseq>;
-	non-removable;
-	status = "okay";
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
 };
 
 &sdhost {
@@ -135,13 +123,6 @@
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 &uart1 {
@@ -149,3 +130,7 @@
 	pinctrl-0 = <&uart1_gpio14>;
 	status = "okay";
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
index 77099a7871b0..d73daf5bff1d 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
@@ -3,6 +3,7 @@
 #include "bcm2837.dtsi"
 #include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,3-model-a-plus", "brcm,bcm2837";
@@ -130,28 +131,6 @@
 	status = "okay";
 };
 
-/*
- * SDHCI is used to control the SDIO for wireless
- *
- * WL_REG_ON and BT_REG_ON of the CYW43455 Wifi/BT module are driven
- * by a single GPIO. We can't give GPIO control to one of the drivers,
- * otherwise the other part would get unexpectedly disturbed.
- */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	status = "okay";
-	bus-width = <4>;
-	non-removable;
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* SDHOST is used to drive the SD card */
 &sdhost {
 	pinctrl-names = "default";
@@ -160,16 +139,15 @@
 	bus-width = <4>;
 };
 
-/* uart0 communicates with the BT module */
+/* uart0 communicates with the BT module
+ *
+ * WL_REG_ON and BT_REG_ON of the CYW43455 Wifi/BT module are driven
+ * by a single GPIO. We can't give GPIO control to one of the drivers,
+ * otherwise the other part would get unexpectedly disturbed.
+ */
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-	};
 };
 
 /* uart1 is mapped to the pin header */
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index 61010266ca9a..e12938baaf12 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -4,6 +4,7 @@
 #include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-lan7515.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
@@ -31,11 +32,10 @@
 			linux,default-trigger = "default-on";
 		};
 	};
+};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
-	};
+&bt {
+	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
 };
 
 &firmware {
@@ -137,23 +137,6 @@
 	status = "okay";
 };
 
-/* SDHCI is used to control the SDIO for wireless */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	status = "okay";
-	bus-width = <4>;
-	non-removable;
-	mmc-pwrseq = <&wifi_pwrseq>;
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* SDHOST is used to drive the SD card */
 &sdhost {
 	pinctrl-names = "default";
@@ -166,13 +149,6 @@
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 /* uart1 is mapped to the pin header */
@@ -181,3 +157,7 @@
 	pinctrl-0 = <&uart1_gpio14>;
 	status = "okay";
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index dd4a48604097..42b5383b55d8 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -4,6 +4,7 @@
 #include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-smsc9514.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
@@ -24,11 +25,10 @@
 			gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
 		};
 	};
+};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
-	};
+&bt {
+	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
 };
 
 &firmware {
@@ -134,13 +134,6 @@
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 /* uart1 is mapped to the pin header */
@@ -150,23 +143,6 @@
 	status = "okay";
 };
 
-/* SDHCI is used to control the SDIO for wireless */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	status = "okay";
-	bus-width = <4>;
-	non-removable;
-	mmc-pwrseq = <&wifi_pwrseq>;
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* SDHOST is used to drive the SD card */
 &sdhost {
 	pinctrl-names = "default";
@@ -174,3 +150,7 @@
 	status = "okay";
 	bus-width = <4>;
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm/boot/dts/bcm283x-rpi-wifi-bt.dtsi b/arch/arm/boot/dts/bcm283x-rpi-wifi-bt.dtsi
new file mode 100644
index 000000000000..0b64cc19941f
--- /dev/null
+++ b/arch/arm/boot/dts/bcm283x-rpi-wifi-bt.dtsi
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	wifi_pwrseq: wifi-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+	};
+};
+
+/* SDHCI is used to control the SDIO for wireless */
+&sdhci {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_gpio34>;
+	bus-width = <4>;
+	non-removable;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+	};
+};
+
+/* uart0 communicates with the BT module */
+&uart0 {
+	status = "okay";
+
+	bt: bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		max-speed = <2000000>;
+	};
+};
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index 11eae3e3a944..c6882032a428 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
 			      bcm2711-rpi-4-b.dtb \
+			      bcm2711-rpi-cm4-io.dtb \
 			      bcm2837-rpi-3-a-plus.dtb \
 			      bcm2837-rpi-3-b.dtb \
 			      bcm2837-rpi-3-b-plus.dtb \
diff --git a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
new file mode 100644
index 000000000000..e36d395e3951
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "arm/bcm2711-rpi-cm4-io.dts"