arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry

Add the DT entry for a watchdog based on RTI1. On SR1.0 silicon, it requires additional firmware on the MCU R5F cores to handle the expiry, e.g. https://github.com/siemens/k3-rti-wdt. As this firmware will also lock the power domain to protect it against premature shutdown, mark it shared. Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Nishanth Menon <[email protected]> Acked-by: Praneeth Bajjuri <[email protected]> Link: https://lore.kernel.org/r/[email protected]
tadfisher · Mar 11, 2021 · 6674a90 · 6674a90
1 parent 4c842af
commit 6674a90
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -308,4 +308,13 @@
 			ti,loczrama = <1>;
 		};
 	};
+
+	mcu_rti1: watchdog@40610000 {
+		compatible = "ti,j7-rti-wdt";
+		reg = <0x0 0x40610000 0x0 0x100>;
+		clocks = <&k3_clks 135 0>;
+		power-domains = <&k3_pds 135 TI_SCI_PD_SHARED>;
+		assigned-clocks = <&k3_clks 135 0>;
+		assigned-clock-parents = <&k3_clks 135 4>;
+	};
 };