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

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Message-Id: <C7422FE9-1DAF-405C-99B1-1838F2ECE6C1@gmail.com>
Date: Fri, 4 Jul 2025 14:34:22 +0800
From: "Han Gao (Revy)" <rabenda.cn@...il.com>
To: Inochi Amaoto <inochiama@...il.com>
Cc: 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>,
 Longbin Li <looong.bin@...il.com>,
 devicetree@...r.kernel.org,
 linux-riscv@...ts.infradead.org,
 sophgo@...ts.linux.dev,
 linux-kernel@...r.kernel.org,
 Yixun Lan <dlan@...too.org>
Subject: Re: [PATCH] riscv: dts: sophgo: sophgo-srd3-10: reserve uart0 device


> On Jul 3, 2025, at 08:40, Inochi Amaoto <inochiama@...il.com> wrote:
> 
> 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>
Tested-by: Han Gao <rabenda.cn@...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
> 
> 
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv
>

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