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From: Jacky Chou <jacky_chou@aspeedtech.com>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Po-Yu Chuang <ratbert@faraday-tech.com>,
	Joel Stanley <joel@jms.id.au>,
	Andrew Jeffery <andrew@codeconstruct.com.au>
Cc: <netdev@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-aspeed@lists.ozlabs.org>, <taoren@meta.com>,
	Jacky Chou <jacky_chou@aspeedtech.com>
Subject: [PATCH net-next v4 3/4] ARM: dts: aspeed: ast2600-evb: Configure RGMII delay for MAC
Date: Mon, 10 Nov 2025 19:09:27 +0800	[thread overview]
Message-ID: <20251110-rgmii_delay_2600-v4-3-5cad32c766f7@aspeedtech.com> (raw)
In-Reply-To: <20251110-rgmii_delay_2600-v4-0-5cad32c766f7@aspeedtech.com>

This change sets the rx-internal-delay-ps and tx-internal-delay-ps
properties to control the RGMII signal delay.
The phy-mode for MAC0–MAC3 is updated to "rgmii-id" to enable TX/RX
internal delay on the PHY and disable the corresponding delay
on the MAC.

Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
---
 arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts b/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
index de83c0eb1d6e..f8f0d5c98514 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
@@ -123,42 +123,54 @@ ethphy3: ethernet-phy@0 {
 &mac0 {
 	status = "okay";
 
-	phy-mode = "rgmii-rxid";
+	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy0>;
 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii1_default>;
+
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
 };
 
 
 &mac1 {
 	status = "okay";
 
-	phy-mode = "rgmii-rxid";
+	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy1>;
 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii2_default>;
+
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
 };
 
 &mac2 {
 	status = "okay";
 
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy2>;
 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii3_default>;
+
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
 };
 
 &mac3 {
 	status = "okay";
 
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy3>;
 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii4_default>;
+
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
 };
 
 &emmc_controller {

-- 
2.34.1


  parent reply	other threads:[~2025-11-10 11:10 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-10 11:09 [PATCH net-next v4 0/4] Add AST2600 RGMII delay into ftgmac100 Jacky Chou
2025-11-10 11:09 ` [PATCH net-next v4 1/4] dt-bindings: net: ftgmac100: Add delay properties for AST2600 Jacky Chou
2025-11-10 12:29   ` Rob Herring (Arm)
2025-11-10 15:21   ` Andrew Lunn
2025-11-11  3:09     ` Jacky Chou
2025-11-10 11:09 ` [PATCH net-next v4 2/4] ARM: dts: aspeed-g6: Add scu and rgmii delay value per step for MAC Jacky Chou
2025-11-10 11:09 ` Jacky Chou [this message]
2025-11-10 11:09 ` [PATCH net-next v4 4/4] net: ftgmac100: Add RGMII delay support for AST2600 Jacky Chou
2025-11-10 15:35   ` Andrew Lunn
2025-11-12  3:45     ` Jacky Chou
2025-11-12 13:19       ` Andrew Lunn
2025-11-13 10:40         ` Jacky Chou
2025-11-15 21:46           ` Andrew Lunn
2025-11-10 15:45   ` Andrew Lunn
2025-11-10 14:34 ` [PATCH net-next v4 0/4] Add AST2600 RGMII delay into ftgmac100 Rob Herring (Arm)

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