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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-renesas-soc@vger.kernel.org
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	devicetree@vger.kernel.org
Subject: [RFC PATCH 6/6] arm64: dts: renesas: ulcb: mark SWDT as reserved
Date: Sat, 20 Sep 2025 08:44:33 +0200	[thread overview]
Message-ID: <20250920064428.5544-14-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20250920064428.5544-8-wsa+renesas@sang-engineering.com>

This watchdog can't be used with Linux because the firmware needs it on
ULCB boards. Sadly, it doesn't mark the node as reserved, so this is
added manually here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 arch/arm64/boot/dts/renesas/ulcb.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index 8a30908992ab..a9e53b36f1d9 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -495,6 +495,11 @@ &ssi1 {
 	shared-pin;
 };
 
+/* Firmware should reserve it but sadly doesn't */
+&swdt {
+	status = "reserved";
+};
+
 &usb2_phy1 {
 	pinctrl-0 = <&usb1_pins>;
 	pinctrl-names = "default";
-- 
2.47.2


  parent reply	other threads:[~2025-09-20  6:44 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-20  6:44 [RFC PATCH 0/6] arm64: dts: renesas: add SWDT Wolfram Sang
2025-09-20  6:44 ` [RFC PATCH 1/6] arm64: dts: renesas: r8a77951: add SWDT node Wolfram Sang
2025-09-20  6:44 ` [RFC PATCH 2/6] arm64: dts: renesas: r8a77960: " Wolfram Sang
2025-09-20  6:44 ` [RFC PATCH 3/6] arm64: dts: renesas: r8a77961: " Wolfram Sang
2025-09-20  6:44 ` [RFC PATCH 4/6] arm64: dts: renesas: r8a77965: " Wolfram Sang
2025-09-20  6:44 ` [RFC PATCH 5/6] arm64: dts: renesas: salvator-common: mark SWDT as reserved Wolfram Sang
2025-09-20  6:44 ` Wolfram Sang [this message]
2025-09-22 12:46 ` [RFC PATCH 0/6] arm64: dts: renesas: add SWDT Geert Uytterhoeven

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