[PATCH v2 2/5] arm64: dts: ti: k3-j721e-mcu: Add the MCU domain watchdog instances

Neha Malcom Francis n-francis at ti.com
Thu Apr 11 21:25:34 PDT 2024


There are 2 watchdog instances in the MCU domain. These instances are
coupled with the MCU domain R55 instances. Reserve them as they are not
used by A72.

Signed-off-by: Neha Malcom Francis <n-francis at ti.com>
Reviewed-by: Udit Kumar <u-kumar1 at ti.com>
---
 .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
index 3044e08f6858..0dc84c9f8c4a 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
@@ -695,4 +695,30 @@ wkup_esm: esm at 42080000 {
 		reg = <0x00 0x42080000 0x00 0x1000>;
 		status = "disabled";
 	};
+
+	/*
+	 * 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 at 40600000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x40600000 0x00 0x100>;
+		clocks = <&k3_clks 262 1>;
+		power-domains = <&k3_pds 262 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 262 1>;
+		assigned-clock-parents = <&k3_clks 262 5>;
+		/* reserved for MCU_R5F0_0 */
+		status = "reserved";
+	};
+
+	mcu_watchdog1: watchdog at 40610000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x40610000 0x00 0x100>;
+		clocks = <&k3_clks 263 1>;
+		power-domains = <&k3_pds 263 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 263 1>;
+		assigned-clock-parents = <&k3_clks 263 5>;
+		/* reserved for MCU_R5F0_1 */
+		status = "reserved";
+	};
 };
-- 
2.34.1




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