From 22f85d63cf47450604c0256b332942e845b1079f Mon Sep 17 00:00:00 2001
From: Sander Vanheule <sander@svanheule.net>
Date: Thu, 25 Nov 2021 06:41:59 +0100
Subject: [PATCH] realtek: netgear-gigabit: Add gpio-restart node
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The Netgear GS110TPP v1 switch cannot reliably perform cold reboots
using the system's internal reset controller.
On this device, and the other supported Netgear switches, internal GPIO
line 13 is connected to the system's hard reset logic. Expose this GPIO
on all systems to ensure restarts work properly.
Cc: Raylynn Knight <rayknight@me.com>
Cc: Michael Mohr <akihana@gmail.com>
Cc: Stijn Segers <foss@volatilesystems.org>
Cc: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Bjørn Mork <bjorn@mork.no>
---
target/linux/realtek/dts-5.10/rtl8380_netgear_gigabit.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/target/linux/realtek/dts-5.10/rtl8380_netgear_gigabit.dtsi b/target/linux/realtek/dts-5.10/rtl8380_netgear_gigabit.dtsi
index 6eb316231b4..72956359d18 100644
--- a/target/linux/realtek/dts-5.10/rtl8380_netgear_gigabit.dtsi
+++ b/target/linux/realtek/dts-5.10/rtl8380_netgear_gigabit.dtsi
@@ -22,6 +22,12 @@
linux,code = <KEY_RESTART>;
};
};
+
+ gpio-restart {
+ compatible = "gpio-restart";
+ gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+ open-source;
+ };
};
&gpio0 {
--
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