linux-kernel - Re: [PATCH 1/1] riscv: dts: spacemit: Disable ETH PHY sleep mode for OrangePi

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Message-ID: <20260121005002-GKA61591@kernel.org>
Date: Wed, 21 Jan 2026 08:50:02 +0800
From: Yixun Lan <dlan@...nel.org>
To: Chukun Pan <amadeus@....edu.cn>
Cc: Rob Herring <robh@...nel.org>, Paul Walmsley <pjw@...nel.org>,
	Alexandre Ghiti <alex@...ti.fr>, Albert Ou <aou@...s.berkeley.edu>,
	Palmer Dabbelt <palmer@...belt.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, spacemit@...ts.linux.dev
Subject: Re: [PATCH 1/1] riscv: dts: spacemit: Disable ETH PHY sleep mode for
 OrangePi

Hi  Chukun,

On 18:00 Tue 20 Jan     , Chukun Pan wrote:
> On the SpacemiT K1 platform, the MAC can't read statistics when the PHY
> clock stops. Disable Link Down Power Saving Mode for the YT8531C PHY on
> OrangePi R2S and RV2 boards to avoid reading statistics timeout logs.
> 
> Signed-off-by: Chukun Pan <amadeus@....edu.cn>

Looks good to me

Reviewed-by: Yixun Lan <dlan@...nel.org>

> ---
>  arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts | 2 ++
>  arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts | 2 ++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
> index 58098c4a2aab..de75f6aac740 100644
> --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
> +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
> @@ -52,6 +52,7 @@ mdio-bus {
>  
>  		rgmii0: phy@1 {
>  			reg = <0x1>;
> +			motorcomm,auto-sleep-disabled;
>  		};
>  	};
>  };
> @@ -75,6 +76,7 @@ mdio-bus {
>  
>  		rgmii1: phy@1 {
>  			reg = <0x1>;
> +			motorcomm,auto-sleep-disabled;
>  		};
>  	};
>  };
> diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
> index 41dc8e35e6eb..7b7331cb3c72 100644
> --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
> +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
> @@ -54,6 +54,7 @@ mdio-bus {
>  
>  		rgmii0: phy@1 {
>  			reg = <0x1>;
> +			motorcomm,auto-sleep-disabled;
>  		};
>  	};
>  };
> @@ -77,6 +78,7 @@ mdio-bus {
>  
>  		rgmii1: phy@1 {
>  			reg = <0x1>;
> +			motorcomm,auto-sleep-disabled;
>  		};
>  	};
>  };
> -- 
> 2.25.1
> 

-- 
Yixun Lan (dlan)