diff --git a/arch/arm/dts/k3-am642-sk.dts b/arch/arm/dts/k3-am642-sk.dts
index df76c6e..d3aa290 100644
--- a/arch/arm/dts/k3-am642-sk.dts
+++ b/arch/arm/dts/k3-am642-sk.dts
@@ -5,6 +5,8 @@
 
 /dts-v1/;
 
+#include <dt-bindings/mux/ti-serdes.h>
+#include <dt-bindings/phy/phy.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/net/ti-dp83867.h>
 #include "k3-am642.dtsi"
@@ -35,6 +37,93 @@
 			alignment = <0x1000>;
 			no-map;
 		};
+
+		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a0000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa0000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa0100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa1000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa1100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa2000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa2100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa3000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa3100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		rtos_ipc_memory_region: ipc-memories@a5000000 {
+			reg = <0x00 0xa5000000 0x00 0x00800000>;
+			alignment = <0x1000>;
+			no-map;
+		};
+	};
+
+	vusb_main: fixed-regulator-vusb-main5v0 {
+		/* USB MAIN INPUT 5V DC */
+		compatible = "regulator-fixed";
+		regulator-name = "vusb_main5v0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vcc_3v3_sys: fixedregulator-vcc-3v3-sys {
+		/* output of LP8733xx */
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3_sys";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vusb_main>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vdd_mmc1: fixed-regulator-sd {
+		/* TPS2051BD */
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_mmc1";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		enable-active-high;
+		vin-supply = <&vcc_3v3_sys>;
+		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
 	};
 };
 
@@ -52,6 +141,12 @@
 		>;
 	};
 
+	main_usb0_pins_default: main-usb0-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */
+		>;
+	};
+
 	main_i2c1_pins_default: main-i2c1-pins-default {
 		pinctrl-single,pins = <
 			AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */
@@ -99,6 +194,30 @@
 			AM64X_IOPAD(0x0144, PIN_OUTPUT, 4) /* (Y11) PRG1_PRU1_GPO15.RGMII2_TX_CTL */
 		>;
 	};
+
+	ospi0_pins_default: ospi0-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0000, PIN_OUTPUT, 0) /* (N20) OSPI0_CLK */
+			AM64X_IOPAD(0x002c, PIN_OUTPUT, 0) /* (L19) OSPI0_CSn0 */
+			AM64X_IOPAD(0x000c, PIN_INPUT, 0) /* (M19) OSPI0_D0 */
+			AM64X_IOPAD(0x0010, PIN_INPUT, 0) /* (M18) OSPI0_D1 */
+			AM64X_IOPAD(0x0014, PIN_INPUT, 0) /* (M20) OSPI0_D2 */
+			AM64X_IOPAD(0x0018, PIN_INPUT, 0) /* (M21) OSPI0_D3 */
+			AM64X_IOPAD(0x001c, PIN_INPUT, 0) /* (P21) OSPI0_D4 */
+			AM64X_IOPAD(0x0020, PIN_INPUT, 0) /* (P20) OSPI0_D5 */
+			AM64X_IOPAD(0x0024, PIN_INPUT, 0) /* (N18) OSPI0_D6 */
+			AM64X_IOPAD(0x0028, PIN_INPUT, 0) /* (M17) OSPI0_D7 */
+			AM64X_IOPAD(0x0008, PIN_INPUT, 0) /* (N19) OSPI0_DQS */
+		>;
+	};
+};
+
+&mcu_uart0 {
+	status = "disabled";
+};
+
+&mcu_uart1 {
+	status = "disabled";
 };
 
 &main_uart1 {
@@ -126,8 +245,51 @@
 	status = "disabled";
 };
 
+&mcu_i2c0 {
+	status = "disabled";
+};
+
+&mcu_i2c1 {
+	status = "disabled";
+};
+
+&main_i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_i2c1_pins_default>;
+	clock-frequency = <400000>;
+
+	exp1: gpio@70 {
+		compatible = "nxp,pca9538";
+		reg = <0x70>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",
+				  "PRU_DETECT", "MMC1_SD_EN",
+				  "VPP_LDO_EN", "RPI_PS_3V3_En",
+				  "RPI_PS_5V0_En", "RPI_HAT_DETECT";
+	};
+};
+
+&main_i2c3 {
+	status = "disabled";
+};
+
+&mcu_spi0 {
+	status = "disabled";
+};
+
+&mcu_spi1 {
+	status = "disabled";
+};
+
+/* mcu_gpio0 is reserved for mcu firmware usage */
+&mcu_gpio0 {
+	status = "reserved";
+};
+
 &sdhci1 {
 	/* SD/MMC */
+	vmmc-supply = <&vdd_mmc1>;
 	pinctrl-names = "default";
 	bus-width = <4>;
 	pinctrl-0 = <&main_mmc1_pins_default>;
@@ -135,6 +297,33 @@
 	disable-wp;
 };
 
+&serdes_ln_ctrl {
+	idle-states = <AM64_SERDES0_LANE0_USB>;
+};
+
+&serdes0 {
+	serdes0_usb_link: phy@0 {
+		reg = <0>;
+		cdns,num-lanes = <1>;
+		#phy-cells = <0>;
+		cdns,phy-type = <PHY_TYPE_USB3>;
+		resets = <&serdes_wiz0 1>;
+	};
+};
+
+&usbss0 {
+	ti,vbus-divider;
+};
+
+&usb0 {
+	dr_mode = "host";
+	maximum-speed = "super-speed";
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_usb0_pins_default>;
+	phys = <&serdes0_usb_link>;
+	phy-names = "cdns3,usb3-phy";
+};
+
 &cpsw3g {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mdio1_pins_default
@@ -147,10 +336,120 @@
 	phy-handle = <&cpsw3g_phy0>;
 };
 
+&cpsw_port2 {
+	phy-mode = "rgmii-rxid";
+	phy-handle = <&cpsw3g_phy1>;
+};
+
 &cpsw3g_mdio {
 	cpsw3g_phy0: ethernet-phy@0 {
 		reg = <0>;
 		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
 		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
 	};
+
+	cpsw3g_phy1: ethernet-phy@1 {
+		reg = <1>;
+		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+	};
+};
+
+&tscadc0 {
+	status = "disabled";
+};
+
+&ospi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ospi0_pins_default>;
+
+	flash@0{
+		compatible = "jedec,spi-nor";
+		reg = <0x0>;
+		spi-tx-bus-width = <8>;
+		spi-rx-bus-width = <8>;
+		spi-max-frequency = <25000000>;
+		cdns,tshsl-ns = <60>;
+		cdns,tsd2d-ns = <60>;
+		cdns,tchsh-ns = <60>;
+		cdns,tslch-ns = <60>;
+		cdns,read-delay = <4>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+	};
+};
+
+&mailbox0_cluster2 {
+	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+
+	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
+		ti,mbox-rx = <2 0 2>;
+		ti,mbox-tx = <3 0 2>;
+	};
+};
+
+&mailbox0_cluster3 {
+	status = "disabled";
+};
+
+&mailbox0_cluster4 {
+	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+
+	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
+		ti,mbox-rx = <2 0 2>;
+		ti,mbox-tx = <3 0 2>;
+	};
+};
+
+&mailbox0_cluster5 {
+	status = "disabled";
+};
+
+&mailbox0_cluster6 {
+	mbox_m4_0: mbox-m4-0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+};
+
+&mailbox0_cluster7 {
+	status = "disabled";
+};
+
+&main_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+};
+
+&main_r5fss0_core1 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
+	memory-region = <&main_r5fss0_core1_dma_memory_region>,
+			<&main_r5fss0_core1_memory_region>;
+};
+
+&main_r5fss1_core0 {
+	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
+	memory-region = <&main_r5fss1_core0_dma_memory_region>,
+			<&main_r5fss1_core0_memory_region>;
+};
+
+&main_r5fss1_core1 {
+	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
+	memory-region = <&main_r5fss1_core1_dma_memory_region>,
+			<&main_r5fss1_core1_memory_region>;
+};
+
+&pcie0_rc {
+	status = "disabled";
+};
+
+&pcie0_ep {
+	status = "disabled";
 };