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diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
new file mode 100644
index 000000000000..7521963719ff
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -0,0 +1,302 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for J721S2 SoC Family MCU/WAKEUP Domain peripherals
+ *
+ * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&cbass_mcu_wakeup {
+ sms: system-controller@44083000 {
+ compatible = "ti,k2g-sci";
+ ti,host-id = <12>;
+
+ mbox-names = "rx", "tx";
+
+ mboxes= <&secure_proxy_main 11>,
+ <&secure_proxy_main 13>;
+
+ reg-names = "debug_messages";
+ reg = <0x00 0x44083000 0x00 0x1000>;
+
+ k3_pds: power-controller {
+ compatible = "ti,sci-pm-domain";
+ #power-domain-cells = <2>;
+ };
+
+ k3_clks: clock-controller {
+ compatible = "ti,k2g-sci-clk";
+ #clock-cells = <2>;
+ };
+
+ k3_reset: reset-controller {
+ compatible = "ti,sci-reset";
+ #reset-cells = <2>;
+ };
+ };
+
+ chipid@43000014 {
+ compatible = "ti,am654-chipid";
+ reg = <0x00 0x43000014 0x00 0x4>;
+ };
+
+ mcu_ram: sram@41c00000 {
+ compatible = "mmio-sram";
+ reg = <0x00 0x41c00000 0x00 0x100000>;
+ ranges = <0x00 0x00 0x41c00000 0x100000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+
+ wkup_pmx0: pinctrl@4301c000 {
+ compatible = "pinctrl-single";
+ /* Proxy 0 addressing */
+ reg = <0x00 0x4301c000 0x00 0x178>;
+ #pinctrl-cells = <1>;
+ pinctrl-single,register-width = <32>;
+ pinctrl-single,function-mask = <0xffffffff>;
+ };
+
+ wkup_gpio_intr: interrupt-controller@42200000 {
+ compatible = "ti,sci-intr";
+ reg = <0x00 0x42200000 0x00 0x400>;
+ ti,intr-trigger-type = <1>;
+ interrupt-controller;
+ interrupt-parent = <&gic500>;
+ #interrupt-cells = <1>;
+ ti,sci = <&sms>;
+ ti,sci-dev-id = <125>;
+ ti,interrupt-ranges = <16 928 16>;
+ };
+
+ mcu_conf: syscon@40f00000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x0 0x40f00000 0x0 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x40f00000 0x20000>;
+
+ phy_gmii_sel: phy@4040 {
+ compatible = "ti,am654-phy-gmii-sel";
+ reg = <0x4040 0x4>;
+ #phy-cells = <1>;
+ };
+
+ };
+
+ wkup_uart0: serial@42300000 {
+ compatible = "ti,j721e-uart", "ti,am654-uart";
+ reg = <0x00 0x42300000 0x00 0x200>;
+ interrupts = <GIC_SPI 897 IRQ_TYPE_LEVEL_HIGH>;
+ current-speed = <115200>;
+ clocks = <&k3_clks 359 3>;
+ clock-names = "fclk";
+ power-domains = <&k3_pds 359 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ mcu_uart0: serial@40a00000 {
+ compatible = "ti,j721e-uart", "ti,am654-uart";
+ reg = <0x00 0x40a00000 0x00 0x200>;
+ interrupts = <GIC_SPI 846 IRQ_TYPE_LEVEL_HIGH>;
+ current-speed = <115200>;
+ clocks = <&k3_clks 149 3>;
+ clock-names = "fclk";
+ power-domains = <&k3_pds 149 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ wkup_gpio0: gpio@42110000 {
+ compatible = "ti,j721e-gpio", "ti,keystone-gpio";
+ reg = <0x00 0x42110000 0x00 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-parent = <&main_gpio_intr>;
+ interrupts = <103>, <104>, <105>, <106>, <107>, <108>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ ti,ngpio = <89>;
+ ti,davinci-gpio-unbanked = <0>;
+ power-domains = <&k3_pds 115 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 115 0>;
+ clock-names = "gpio";
+ };
+
+ wkup_gpio1: gpio@42100000 {
+ compatible = "ti,j721e-gpio", "ti,keystone-gpio";
+ reg = <0x00 0x42100000 0x00 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-parent = <&main_gpio_intr>;
+ interrupts = <112>, <113>, <114>, <115>, <116>, <117>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ ti,ngpio = <89>;
+ ti,davinci-gpio-unbanked = <0>;
+ power-domains = <&k3_pds 116 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 116 0>;
+ clock-names = "gpio";
+ };
+
+ wkup_i2c0: i2c@42120000 {
+ compatible = "ti,j721e-i2c", "ti,omap4-i2c";
+ reg = <0x00 0x42120000 0x00 0x100>;
+ interrupts = <GIC_SPI 896 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&k3_clks 223 1>;
+ clock-names = "fck";
+ power-domains = <&k3_pds 223 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ mcu_i2c0: i2c@40b00000 {
+ compatible = "ti,j721e-i2c", "ti,omap4-i2c";
+ reg = <0x00 0x40b00000 0x00 0x100>;
+ interrupts = <GIC_SPI 852 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&k3_clks 221 1>;
+ clock-names = "fck";
+ power-domains = <&k3_pds 221 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ mcu_i2c1: i2c@40b10000 {
+ compatible = "ti,j721e-i2c", "ti,omap4-i2c";
+ reg = <0x00 0x40b10000 0x00 0x100>;
+ interrupts = <GIC_SPI 853 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&k3_clks 222 1>;
+ clock-names = "fck";
+ power-domains = <&k3_pds 222 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ mcu_mcan0: can@40528000 {
+ compatible = "bosch,m_can";
+ reg = <0x00 0x40528000 0x00 0x200>,
+ <0x00 0x40500000 0x00 0x8000>;
+ reg-names = "m_can", "message_ram";
+ power-domains = <&k3_pds 207 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 207 0>, <&k3_clks 207 1>;
+ clock-names = "hclk", "cclk";
+ interrupts = <GIC_SPI 832 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 833 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "int0", "int1";
+ bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+ };
+
+ mcu_mcan1: can@40568000 {
+ compatible = "bosch,m_can";
+ reg = <0x00 0x40568000 0x00 0x200>,
+ <0x00 0x40540000 0x00 0x8000>;
+ reg-names = "m_can", "message_ram";
+ power-domains = <&k3_pds 208 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 208 0>, <&k3_clks 208 1>;
+ clock-names = "hclk", "cclk";
+ interrupts = <GIC_SPI 835 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 836 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "int0", "int1";
+ bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+ };
+
+ mcu_navss: bus@28380000{
+ compatible = "simple-mfd";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x00 0x28380000 0x00 0x28380000 0x00 0x03880000>;
+ dma-coherent;
+ dma-ranges;
+
+ ti,sci-dev-id = <267>;
+
+ mcu_ringacc: ringacc@2b800000 {
+ compatible = "ti,am654-navss-ringacc";
+ reg = <0x0 0x2b800000 0x0 0x400000>,
+ <0x0 0x2b000000 0x0 0x400000>,
+ <0x0 0x28590000 0x0 0x100>,
+ <0x0 0x2a500000 0x0 0x40000>;
+ reg-names = "rt", "fifos", "proxy_gcfg", "proxy_target";
+ ti,num-rings = <286>;
+ ti,sci-rm-range-gp-rings = <0x1>;
+ ti,sci = <&sms>;
+ ti,sci-dev-id = <272>;
+ msi-parent = <&main_udmass_inta>;
+ };
+
+ mcu_udmap: dma-controller@285c0000 {
+ compatible = "ti,j721e-navss-mcu-udmap";
+ reg = <0x0 0x285c0000 0x0 0x100>,
+ <0x0 0x2a800000 0x0 0x40000>,
+ <0x0 0x2aa00000 0x0 0x40000>;
+ reg-names = "gcfg", "rchanrt", "tchanrt";
+ msi-parent = <&main_udmass_inta>;
+ #dma-cells = <1>;
+
+ ti,sci = <&sms>;
+ ti,sci-dev-id = <273>;
+ ti,ringacc = <&mcu_ringacc>;
+ ti,sci-rm-range-tchan = <0x0d>, /* TX_CHAN */
+ <0x0f>; /* TX_HCHAN */
+ ti,sci-rm-range-rchan = <0x0a>, /* RX_CHAN */
+ <0x0b>; /* RX_HCHAN */
+ ti,sci-rm-range-rflow = <0x00>; /* GP RFLOW */
+ };
+ };
+
+ mcu_cpsw: ethernet@46000000 {
+ compatible = "ti,j721e-cpsw-nuss";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ reg = <0x0 0x46000000 0x0 0x200000>;
+ reg-names = "cpsw_nuss";
+ ranges = <0x0 0x0 0x0 0x46000000 0x0 0x200000>;
+ dma-coherent;
+ clocks = <&k3_clks 29 28>;
+ clock-names = "fck";
+ power-domains = <&k3_pds 29 TI_SCI_PD_EXCLUSIVE>;
+
+ dmas = <&mcu_udmap 0xf000>,
+ <&mcu_udmap 0xf001>,
+ <&mcu_udmap 0xf002>,
+ <&mcu_udmap 0xf003>,
+ <&mcu_udmap 0xf004>,
+ <&mcu_udmap 0xf005>,
+ <&mcu_udmap 0xf006>,
+ <&mcu_udmap 0xf007>,
+ <&mcu_udmap 0x7000>;
+ dma-names = "tx0", "tx1", "tx2", "tx3",
+ "tx4", "tx5", "tx6", "tx7",
+ "rx";
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpsw_port1: port@1 {
+ reg = <1>;
+ ti,mac-only;
+ label = "port1";
+ ti,syscon-efuse = <&mcu_conf 0x200>;
+ phys = <&phy_gmii_sel 1>;
+ };
+ };
+
+ davinci_mdio: mdio@f00 {
+ compatible = "ti,cpsw-mdio","ti,davinci_mdio";
+ reg = <0x0 0xf00 0x0 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&k3_clks 29 28>;
+ clock-names = "fck";
+ bus_freq = <1000000>;
+ };
+
+ cpts@3d000 {
+ compatible = "ti,am65-cpts";
+ reg = <0x0 0x3d000 0x0 0x400>;
+ clocks = <&k3_clks 29 3>;
+ clock-names = "cpts";
+ interrupts-extended = <&gic500 GIC_SPI 858 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "cpts";
+ ti,cpts-ext-ts-inputs = <4>;
+ ti,cpts-periodic-outputs = <2>;
+ };
+ };
+};