[PATCH v2 2/3] arm64: dts: qcom: hamoa: Add the APSS watchdog
From: Abel Vesa
Date: Fri Dec 19 2025 - 05:00:49 EST
The watchdog support in EL1 is SBSA compliant, handled by Gunyah
hypervisor, but in EL2. the watchdog is an instance of the APSS WDT HW
block, same as older platforms. So describe the APSS WDT node and mark
it as reserved, as it will only be enabled in EL2 overlay.
Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/hamoa.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
index a17900eacb20..b65dfad71c2f 100644
--- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
@@ -8302,6 +8302,14 @@ gic_its: msi-controller@17040000 {
};
};
+ apss_watchdog: watchdog@17410000 {
+ compatible = "qcom,apss-wdt-x1e80100", "qcom,kpss-wdt";
+ reg = <0x0 0x17410000 0x0 0x1000>;
+ clocks = <&sleep_clk>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_EDGE_RISING>;
+ status = "reserved"; /* Accessible in EL2 only */
+ };
+
cpucp_mbox: mailbox@17430000 {
compatible = "qcom,x1e80100-cpucp-mbox";
reg = <0 0x17430000 0 0x10000>, <0 0x18830000 0 0x10000>;
--
2.48.1