arch: arm: dts: k3-j721s2-r5: Introduce k3-j721s2-r5.dtsi

Create an SoC R5 dtsi file that could be used at board level R5 files. This
would help in keeping the SoC level changes in sync across board files.

Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
diff --git a/arch/arm/dts/k3-j721s2-r5.dtsi b/arch/arm/dts/k3-j721s2-r5.dtsi
new file mode 100644
index 0000000..eb0df42
--- /dev/null
+++ b/arch/arm/dts/k3-j721s2-r5.dtsi
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021-2024 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/ {
+	chosen {
+		tick-timer = &mcu_timer0;
+	};
+
+	aliases {
+		remoteproc0 = &sysctrler;
+		remoteproc1 = &a72_0;
+	};
+
+	a72_0: a72@0 {
+		compatible = "ti,am654-rproc";
+		reg = <0x0 0x00a90000 0x0 0x10>;
+		power-domains = <&k3_pds 61 TI_SCI_PD_EXCLUSIVE>,
+				<&k3_pds 202 TI_SCI_PD_EXCLUSIVE>,
+				<&k3_pds 4 TI_SCI_PD_EXCLUSIVE>;
+		resets = <&k3_reset 202 0>;
+		clocks = <&k3_clks 61 1>;
+		assigned-clocks = <&k3_clks 61 1>, <&k3_clks 202 0>;
+		assigned-clock-parents = <&k3_clks 61 2>;
+		assigned-clock-rates = <200000000>, <2000000000>;
+		ti,sci = <&sms>;
+		ti,sci-proc-id = <32>;
+		ti,sci-host-id = <10>;
+		bootph-pre-ram;
+	};
+
+	dm_tifs: dm-tifs {
+		compatible = "ti,j721e-dm-sci";
+		ti,host-id = <3>;
+		ti,secure-host;
+		mbox-names = "rx", "tx";
+		mboxes= <&secure_proxy_mcu 21>,
+			<&secure_proxy_mcu 23>;
+		bootph-pre-ram;
+	};
+};
+
+&mcu_timer0 {
+	clock-frequency = <250000000>;
+	bootph-pre-ram;
+};
+
+&secure_proxy_sa3 {
+	bootph-pre-ram;
+	status = "okay";
+};
+
+&secure_proxy_mcu {
+	bootph-pre-ram;
+	status = "okay";
+};
+
+&cbass_mcu_wakeup {
+	sysctrler: sysctrler {
+		compatible = "ti,am654-system-controller";
+		mboxes= <&secure_proxy_mcu 4>, <&secure_proxy_mcu 5>, <&secure_proxy_sa3 5>;
+		mbox-names = "tx", "rx", "boot_notify";
+		bootph-pre-ram;
+	};
+};
+
+&sms {
+	mboxes= <&secure_proxy_mcu 8>, <&secure_proxy_mcu 6>, <&secure_proxy_mcu 5>;
+	mbox-names = "tx", "rx", "notify";
+	ti,host-id = <4>;
+	ti,secure-host;
+};
+
+&mcu_ringacc {
+	ti,sci = <&dm_tifs>;
+};
+
+&mcu_udmap {
+	ti,sci = <&dm_tifs>;
+};