diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 2dd7865f7654..361aa6b24b22 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -463,7 +463,6 @@ mailbox0_cluster0: mailbox@31f80000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster1: mailbox@31f81000 {
@@ -473,7 +472,6 @@ mailbox0_cluster1: mailbox@31f81000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster2: mailbox@31f82000 {
@@ -483,7 +481,6 @@ mailbox0_cluster2: mailbox@31f82000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster3: mailbox@31f83000 {
@@ -493,7 +490,6 @@ mailbox0_cluster3: mailbox@31f83000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster4: mailbox@31f84000 {
@@ -503,7 +499,6 @@ mailbox0_cluster4: mailbox@31f84000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster5: mailbox@31f85000 {
@@ -513,7 +508,6 @@ mailbox0_cluster5: mailbox@31f85000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster6: mailbox@31f86000 {
@@ -523,7 +517,6 @@ mailbox0_cluster6: mailbox@31f86000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster7: mailbox@31f87000 {
@@ -533,7 +526,6 @@ mailbox0_cluster7: mailbox@31f87000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster8: mailbox@31f88000 {
@@ -543,7 +535,6 @@ mailbox0_cluster8: mailbox@31f88000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster9: mailbox@31f89000 {
@@ -553,7 +544,6 @@ mailbox0_cluster9: mailbox@31f89000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster10: mailbox@31f8a000 {
@@ -563,7 +553,6 @@ mailbox0_cluster10: mailbox@31f8a000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox0_cluster11: mailbox@31f8b000 {
@@ -573,7 +562,6 @@ mailbox0_cluster11: mailbox@31f8b000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster0: mailbox@31f90000 {
@@ -583,7 +571,6 @@ mailbox1_cluster0: mailbox@31f90000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster1: mailbox@31f91000 {
@@ -593,7 +580,6 @@ mailbox1_cluster1: mailbox@31f91000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster2: mailbox@31f92000 {
@@ -603,7 +589,6 @@ mailbox1_cluster2: mailbox@31f92000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster3: mailbox@31f93000 {
@@ -613,7 +598,6 @@ mailbox1_cluster3: mailbox@31f93000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster4: mailbox@31f94000 {
@@ -623,7 +607,6 @@ mailbox1_cluster4: mailbox@31f94000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster5: mailbox@31f95000 {
@@ -633,7 +616,6 @@ mailbox1_cluster5: mailbox@31f95000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster6: mailbox@31f96000 {
@@ -643,7 +625,6 @@ mailbox1_cluster6: mailbox@31f96000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster7: mailbox@31f97000 {
@@ -653,7 +634,6 @@ mailbox1_cluster7: mailbox@31f97000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster8: mailbox@31f98000 {
@@ -663,7 +643,6 @@ mailbox1_cluster8: mailbox@31f98000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster9: mailbox@31f99000 {
@@ -673,7 +652,6 @@ mailbox1_cluster9: mailbox@31f99000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster10: mailbox@31f9a000 {
@@ -683,7 +661,6 @@ mailbox1_cluster10: mailbox@31f9a000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		mailbox1_cluster11: mailbox@31f9b000 {
@@ -693,7 +670,6 @@ mailbox1_cluster11: mailbox@31f9b000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&main_navss_intr>;
-			status = "disabled";
 		};
 
 		main_ringacc: ringacc@3c000000 {
@@ -1102,4 +1078,108 @@ main_spi7: spi@2170000 {
 		clocks = <&k3_clks 346 1>;
 		status = "disabled";
 	};
+
+	main_r5fss0: r5fss@5c00000 {
+		compatible = "ti,j721s2-r5fss";
+		ti,cluster-mode = <1>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
+			 <0x5d00000 0x00 0x5d00000 0x20000>;
+		power-domains = <&k3_pds 277 TI_SCI_PD_EXCLUSIVE>;
+
+		main_r5fss0_core0: r5f@5c00000 {
+			compatible = "ti,j721s2-r5f";
+			reg = <0x5c00000 0x00010000>,
+			      <0x5c10000 0x00010000>;
+			reg-names = "atcm", "btcm";
+			ti,sci = <&sms>;
+			ti,sci-dev-id = <279>;
+			ti,sci-proc-ids = <0x06 0xff>;
+			resets = <&k3_reset 279 1>;
+			firmware-name = "j721s2-main-r5f0_0-fw";
+			ti,atcm-enable = <1>;
+			ti,btcm-enable = <1>;
+			ti,loczrama = <1>;
+		};
+
+		main_r5fss0_core1: r5f@5d00000 {
+			compatible = "ti,j721s2-r5f";
+			reg = <0x5d00000 0x00010000>,
+			      <0x5d10000 0x00010000>;
+			reg-names = "atcm", "btcm";
+			ti,sci = <&sms>;
+			ti,sci-dev-id = <280>;
+			ti,sci-proc-ids = <0x07 0xff>;
+			resets = <&k3_reset 280 1>;
+			firmware-name = "j721s2-main-r5f0_1-fw";
+			ti,atcm-enable = <1>;
+			ti,btcm-enable = <1>;
+			ti,loczrama = <1>;
+		};
+	};
+
+	main_r5fss1: r5fss@5e00000 {
+		compatible = "ti,j721s2-r5fss";
+		ti,cluster-mode = <1>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x5e00000 0x00 0x5e00000 0x20000>,
+			 <0x5f00000 0x00 0x5f00000 0x20000>;
+		power-domains = <&k3_pds 278 TI_SCI_PD_EXCLUSIVE>;
+
+		main_r5fss1_core0: r5f@5e00000 {
+			compatible = "ti,j721s2-r5f";
+			reg = <0x5e00000 0x00010000>,
+			      <0x5e10000 0x00010000>;
+			reg-names = "atcm", "btcm";
+			ti,sci = <&sms>;
+			ti,sci-dev-id = <281>;
+			ti,sci-proc-ids = <0x08 0xff>;
+			resets = <&k3_reset 281 1>;
+			firmware-name = "j721s2-main-r5f1_0-fw";
+			ti,atcm-enable = <1>;
+			ti,btcm-enable = <1>;
+			ti,loczrama = <1>;
+		};
+
+		main_r5fss1_core1: r5f@5f00000 {
+			compatible = "ti,j721s2-r5f";
+			reg = <0x5f00000 0x00010000>,
+			      <0x5f10000 0x00010000>;
+			reg-names = "atcm", "btcm";
+			ti,sci = <&sms>;
+			ti,sci-dev-id = <282>;
+			ti,sci-proc-ids = <0x09 0xff>;
+			resets = <&k3_reset 282 1>;
+			firmware-name = "j721s2-main-r5f1_1-fw";
+			ti,atcm-enable = <1>;
+			ti,btcm-enable = <1>;
+			ti,loczrama = <1>;
+		};
+	};
+
+	c71_0: dsp@64800000 {
+		compatible = "ti,j721s2-c71-dsp";
+		reg = <0x00 0x64800000 0x00 0x00080000>,
+		      <0x00 0x64e00000 0x00 0x0000c000>;
+		reg-names = "l2sram", "l1dram";
+		ti,sci = <&sms>;
+		ti,sci-dev-id = <8>;
+		ti,sci-proc-ids = <0x30 0xff>;
+		resets = <&k3_reset 8 1>;
+		firmware-name = "j721s2-c71_0-fw";
+	};
+
+	c71_1: dsp@65800000 {
+		compatible = "ti,j721s2-c71-dsp";
+		reg = <0x00 0x65800000 0x00 0x00080000>,
+		      <0x00 0x65e00000 0x00 0x0000c000>;
+		reg-names = "l2sram", "l1dram";
+		ti,sci = <&sms>;
+		ti,sci-dev-id = <11>;
+		ti,sci-proc-ids = <0x31 0xff>;
+		resets = <&k3_reset 11 1>;
+		firmware-name = "j721s2-c71_1-fw";
+	};
 };
