linux-kernel - [PATCH v8 7/7] arm64: dts: ti: k3-j712s2-mcu: Add the mcu domain watchdog instances

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Date:   Sun, 8 Oct 2023 10:16:57 +0530
From:   Keerthy <j-keerthy@...com>
To:     <robh+dt@...nel.org>, <nm@...com>, <vigneshr@...com>,
        <conor+dt@...nel.org>, <kristo@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>
CC:     <j-keerthy@...com>, <u-kumar1@...com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v8 7/7] arm64: dts: ti: k3-j712s2-mcu: Add the mcu domain watchdog instances

There are totally 2 instances of watchdog module in MCU domain.
These instances are coupled with the MCU domain R5F instances.
Reserving them as they are not used by A72.

Signed-off-by: Keerthy <j-keerthy@...com>
---
 .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi     | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index f94aa3a34e22..00a908a7d7ff 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -709,4 +709,30 @@
 		ti,esm-pins = <63>;
 		bootph-pre-ram;
 	};
+
+	/*
+	 * The 2 RTI instances are couple with MCU R5Fs so keeping them
+	 * reserved as these will be used by their respective firmware
+	 */
+	mcu_watchdog0: watchdog@...00000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x40600000 0x00 0x100>;
+		clocks = <&k3_clks 295 1>;
+		power-domains = <&k3_pds 295 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 295 1>;
+		assigned-clock-parents = <&k3_clks 295 5>;
+		/* reserved for MCU_R5F0_0 */
+		status = "reserved";
+	};
+
+	mcu_watchdog1: watchdog@...10000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x40610000 0x00 0x100>;
+		clocks = <&k3_clks 296 1>;
+		power-domains = <&k3_pds 296 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 296 1>;
+		assigned-clock-parents = <&k3_clks 296 5>;
+		/* reserved for MCU_R5F0_1 */
+		status = "reserved";
+	};
 };
-- 
2.17.1