Thread (5 messages) flat view 5 messages, 4 authors, 2021-03-11

Re: [PATCH] arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry

From: Bajjuri, Praneeth <hidden>
Date: 2021-03-11 01:37:14
Also in: linux-arm-kernel, lkml


On 2/20/2021 6:49 AM, Jan Kiszka wrote:
From: Jan Kiszka <jan.kiszka@siemens.com>

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 <jan.kiszka@siemens.com>
Acked-by: Praneeth Bajjuri <redacted>
quoted hunk ↗ jump to hunk
---
  arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 9 +++++++++
  1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index 7454c8cec0cc..903796bf7d64 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -308,4 +308,13 @@ mcu_r5fss0_core1: r5f@41400000 {
  			ti,loczrama = <1>;
  		};
  	};
+
+	mcu_rti1: rti@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>;
+	};
  };
--
2.26.2


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