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

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Message-Id: <20260120100001.1285624-2-amadeus@jmu.edu.cn>
Date: Tue, 20 Jan 2026 18:00:01 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: Yixun Lan <dlan@...nel.org>
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,
	Chukun Pan <amadeus@....edu.cn>
Subject: [PATCH 1/1] riscv: dts: spacemit: Disable ETH PHY sleep mode for OrangePi

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>
---
 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