linux-kernel - [PATCH 2/3] arm64: dts: ti: k3-am62a: Add watchdog nodes

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Message-ID: <20230418012717.1230882-3-nm@ti.com>
Date:   Mon, 17 Apr 2023 20:27:16 -0500
From:   Nishanth Menon <nm@...com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Tero Kristo <kristo@...nel.org>, Nishanth Menon <nm@...com>,
        Bryan Brattlof <bb@...com>
Subject: [PATCH 2/3] arm64: dts: ti: k3-am62a: Add watchdog nodes

Add nodes for watchdogs:
- 5 in main domain
- 1 in MCU domain
- 1 in wakeup domain

Signed-off-by: Nishanth Menon <nm@...com>
---
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi   | 45 +++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi    | 11 +++++
 arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi | 11 +++++
 3 files changed, 67 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index 59d1199e43c9..e43e64451bc1 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -697,6 +697,51 @@ main_mcan0: can@...01000 {
 		status = "disabled";
 	};
 
+	main_rti0: watchdog@...0000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x0e000000 0x00 0x100>;
+		clocks = <&k3_clks 125 0>;
+		power-domains = <&k3_pds 125 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 125 0>;
+		assigned-clock-parents = <&k3_clks 125 2>;
+	};
+
+	main_rti1: watchdog@...0000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x0e010000 0x00 0x100>;
+		clocks = <&k3_clks 126 0>;
+		power-domains = <&k3_pds 126 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 126 0>;
+		assigned-clock-parents = <&k3_clks 126 2>;
+	};
+
+	main_rti2: watchdog@...0000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x0e020000 0x00 0x100>;
+		clocks = <&k3_clks 127 0>;
+		power-domains = <&k3_pds 127 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 127 0>;
+		assigned-clock-parents = <&k3_clks 127 2>;
+	};
+
+	main_rti3: watchdog@...0000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x0e030000 0x00 0x100>;
+		clocks = <&k3_clks 128 0>;
+		power-domains = <&k3_pds 128 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 128 0>;
+		assigned-clock-parents = <&k3_clks 128 2>;
+	};
+
+	main_rti4: watchdog@...0000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x0e040000 0x00 0x100>;
+		clocks = <&k3_clks 205 0>;
+		power-domains = <&k3_pds 205 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 205 0>;
+		assigned-clock-parents = <&k3_clks 205 2>;
+	};
+
 	epwm0: pwm@...00000 {
 		compatible = "ti,am64-epwm", "ti,am3352-ehrpwm";
 		#pwm-cells = <3>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
index 50c94a55fe85..04599762c2b7 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
@@ -132,4 +132,15 @@ mcu_gpio0: gpio@...1000 {
 		clock-names = "gpio";
 		status = "disabled";
 	};
+
+	mcu_rti0: watchdog@...0000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x04880000 0x00 0x100>;
+		clocks = <&k3_clks 131 0>;
+		power-domains = <&k3_pds 131 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 131 0>;
+		assigned-clock-parents = <&k3_clks 131 2>;
+		/* Tightly coupled to M4F */
+		status = "reserved";
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
index 81d984414fd4..d848eb24b552 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
@@ -51,4 +51,15 @@ wkup_rtc0: rtc@...f0000 {
 		wakeup-source;
 		status = "disabled";
 	};
+
+	wkup_rti0: watchdog@...00000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x00 0x2b000000 0x00 0x100>;
+		clocks = <&k3_clks 132 0>;
+		power-domains = <&k3_pds 132 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 132 0>;
+		assigned-clock-parents = <&k3_clks 132 2>;
+		/* Used by DM firmware */
+		status = "reserved";
+	};
 };
-- 
2.40.0