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: [PATCH 2/9] arm64: dts: renesas: falcon: mark SWDT as reserved
Date: Mon, 6 Oct 2025 10:25:20 +0200 [thread overview]
Message-ID: <20251006082520.10570-13-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20251006082520.10570-11-wsa+renesas@sang-engineering.com>
This watchdog can't be used with Linux because the firmware needs it on
V3U Falcon 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/r8a779a0-falcon-cpu.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
index 0916fd57d1f1..5432c7d6919d 100644
--- a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
@@ -357,3 +357,8 @@ &scif0 {
&scif_clk {
clock-frequency = <24000000>;
};
+
+/* Firmware should reserve it but sadly doesn't */
+&swdt {
+ status = "reserved";
+};
--
2.47.2
next prev parent reply other threads:[~2025-10-06 8:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-06 8:25 [PATCH 0/9] arm64: dts: renesas: gen4: handle SWDT Wolfram Sang
2025-10-06 8:25 ` [PATCH 1/9] arm64: dts: renesas: r8a779a0: add SWDT node Wolfram Sang
2025-10-06 15:33 ` Geert Uytterhoeven
2025-10-06 8:25 ` Wolfram Sang [this message]
2025-10-06 15:33 ` [PATCH 2/9] arm64: dts: renesas: falcon: mark SWDT as reserved Geert Uytterhoeven
2025-10-06 8:25 ` [PATCH 3/9] arm64: dts: renesas: r8a779f0: add SWDT node Wolfram Sang
2025-10-06 15:34 ` Geert Uytterhoeven
2025-10-06 8:25 ` [PATCH 4/9] arm64: dts: renesas: s4: mark SWDT as reserved Wolfram Sang
2025-10-06 15:34 ` Geert Uytterhoeven
2025-10-06 8:25 ` [PATCH 5/9] arm64: dts: renesas: r8a779g0: add SWDT node Wolfram Sang
2025-10-06 15:35 ` Geert Uytterhoeven
2025-10-06 8:25 ` [PATCH 6/9] arm64: dts: renesas: white-hawk: Enable RWDT watchdog timer Wolfram Sang
2025-10-06 15:21 ` Geert Uytterhoeven
2025-10-06 8:25 ` [PATCH 7/9] arm64: dts: renesas: v4h: mark SWDT as reserved Wolfram Sang
2025-10-06 15:39 ` Geert Uytterhoeven
2025-10-06 8:25 ` [PATCH 8/9] arm64: dts: renesas: r8a779h0: add SWDT node Wolfram Sang
2025-10-06 15:40 ` Geert Uytterhoeven
2025-10-06 8:25 ` [PATCH 9/9] arm64: dts: renesas: gray-hawk: mark SWDT as reserved Wolfram Sang
2025-10-06 15:40 ` Geert Uytterhoeven
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