[PATCH 5/8] arm64: dts: s32g2: Add the Software Timer Watchdog (SWT) description
Daniel Lezcano
daniel.lezcano at linaro.org
Wed Jul 30 12:50:18 PDT 2025
Referred in the documentation as the Software Timer Watchdog (SWT),
the s32g2 has 7 watchdogs. The number of watchdogs is designed to
allow dedicating one watchdog per Cortex-M7/A53 present on the SoC.
Describe them in the device tree.
Signed-off-by: Daniel Lezcano <daniel.lezcano at linaro.org>
---
arch/arm64/boot/dts/freescale/s32g2.dtsi | 56 ++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/s32g2.dtsi b/arch/arm64/boot/dts/freescale/s32g2.dtsi
index 3e775d030e37..12ce02525ae1 100644
--- a/arch/arm64/boot/dts/freescale/s32g2.dtsi
+++ b/arch/arm64/boot/dts/freescale/s32g2.dtsi
@@ -566,5 +566,61 @@ stm6: timer at 40224000 {
interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
+
+ swt0: watchdog at 40100000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40100000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>, <&clks 0x3b>;
+ clock-names = "counter", "module", "register";
+ status = "disabled";
+ };
+
+ swt1: watchdog at 40104000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40104000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>, <&clks 0x3b>;
+ clock-names = "counter", "module", "register";
+ status = "disabled";
+ };
+
+ swt2: watchdog at 40108000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40108000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>, <&clks 0x3b>;
+ clock-names = "counter", "module", "register";
+ status = "disabled";
+ };
+
+ swt3: watchdog at 4010c000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x4010c000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>, <&clks 0x3b>;
+ clock-names = "counter", "module", "register";
+ status = "disabled";
+ };
+
+ swt4: watchdog at 40200000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40200000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>, <&clks 0x3b>;
+ clock-names = "counter", "module", "register";
+ status = "disabled";
+ };
+
+ swt5: watchdog at 40204000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40204000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>, <&clks 0x3b>;
+ clock-names = "counter", "module", "register";
+ status = "disabled";
+ };
+
+ swt6: watchdog at 40208000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40208000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>, <&clks 0x3b>;
+ clock-names = "counter", "module", "register";
+ status = "disabled";
+ };
};
};
--
2.43.0
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