[PATCH] arm64: dts: mt8195: change watchdog reset boot flow

Hsin-Te Yuan yuanhsinte at chromium.org
Mon Aug 7 01:58:12 PDT 2023


The external output reset signal was originally disabled and sent from
firmware. However, an unfixed bug in the firmware prevents the signal
from being sent, causing the device to fail to boot. To fix this, enable
external output reset signal to allow the device to reboot normally.

Signed-off-by: Hsin-Te Yuan <yuanhsinte at google.com>
---

 arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 37a3e9de90ff7..5dc4214e1840b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -1147,6 +1147,10 @@ &uart0 {
 	status = "okay";
 };
 
+&watchdog {
+	/delete-property/ mediatek,disable-extrst;
+};
+
 &xhci0 {
 	status = "okay";
 
-- 
2.41.0.585.gd2178a4bd4-goog




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