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[U-Boot,4/9] arm64: zynqmp: Add reset-on-timeout for all boards and modify default timeout value

Message ID cd040369a119a2ae48ff32dbe26e6c90ca518728.1550073256.git.michal.simek@xilinx.com
State Accepted
Commit 3c8ee337eb786f62d17b334a18427787f8b226bb
Delegated to: Michal Simek
Headers show
Series xilinx: dts: Update various DT files | expand

Commit Message

Michal Simek Feb. 13, 2019, 3:54 p.m. UTC 
From: Mounika Grace Akula <mounika.grace.akula@xilinx.com>

This patch adds reset-on-timeout to FPD WDT which will trigger an
interrupt to PMU when watchdog expiry happens and PMU takes the
necessary action. If this property is not enabled, reason will not be
known when watchdog expiry happens.
This patch also modifies the default timeout to 60 seconds. Reason is
that if u-boot enables WDT, it will set the timeout to 10 seconds and
this is not enough to boot till Linux and start the WDT application in
Linux. 60 seconds is the maximum safest value to boot till Linux and
start the WDT application.

Users need to change this timeout value to fit their needs.

Signed-off-by: Mounika Grace Akula <mounika.grace.akula@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

 arch/arm/dts/zynqmp-zcu100-revC.dts | 1 -
 arch/arm/dts/zynqmp.dtsi            | 3 ++-
 2 files changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/arm/dts/zynqmp-zcu100-revC.dts b/arch/arm/dts/zynqmp-zcu100-revC.dts
index 05491e9bbc0c..0d9ad86029aa 100644
--- a/arch/arm/dts/zynqmp-zcu100-revC.dts
+++ b/arch/arm/dts/zynqmp-zcu100-revC.dts
@@ -332,7 +332,6 @@ 
 
 &watchdog0 {
 	status = "okay";
-	reset-on-timeout;
 };
 
 &xilinx_ams {
diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi
index 831d6e1ecc4d..b28e75732f1e 100644
--- a/arch/arm/dts/zynqmp.dtsi
+++ b/arch/arm/dts/zynqmp.dtsi
@@ -884,7 +884,8 @@ 
 			interrupt-parent = <&gic>;
 			interrupts = <0 113 1>;
 			reg = <0x0 0xfd4d0000 0x0 0x1000>;
-			timeout-sec = <10>;
+			timeout-sec = <60>;
+			reset-on-timeout;
 		};
 
 		xilinx_ams: ams@ffa50000 {