linux-kernel - [PATCH] riscv: dts: sophgo: sophgo-srd3-10: reserve uart0 device

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Message-ID: <20250703004024.85221-1-inochiama@gmail.com>
Date: Thu,  3 Jul 2025 08:40:23 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Longbin Li <looong.bin@...il.com>
Cc: devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Yixun Lan <dlan@...too.org>
Subject: [PATCH] riscv: dts: sophgo: sophgo-srd3-10: reserve uart0 device

As the uart0 is already occupied by the firmware, reserve it
to avoid this port is used by mistake.

Signed-off-by: Inochi Amaoto <inochiama@...il.com>
---
 arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts b/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts
index 96ccb6120114..1b506972d465 100644
--- a/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts
+++ b/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts
@@ -113,6 +113,11 @@ &sd {
 	status = "okay";
 };
 
+&uart0 {
+	/* for firmware */
+	status = "reserved";
+};
+
 &uart1 {
 	status = "okay";
 };
-- 
2.50.0