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Message-ID: <20250317025922.1526937-3-jacky_chou@aspeedtech.com>
Date: Mon, 17 Mar 2025 10:59:20 +0800
From: Jacky Chou <jacky_chou@...eedtech.com>
To: <andrew+netdev@...n.ch>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<kuba@...nel.org>, <pabeni@...hat.com>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <joel@....id.au>,
	<andrew@...econstruct.com.au>, <ratbert@...aday-tech.com>,
	<netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-aspeed@...ts.ozlabs.org>
CC: <BMC-SW@...eedtech.com>
Subject: [net-next 2/4] ARM: dts: ast2600-evb: add default RGMII delay

Use tx-internal-delay-ps and rx-internal-delay-ps to
configure the RGMII delay on MAC.
And add default value for AST2600 MAC in dts.
Refer to faraday,ftgmac100yaml to know how to configure
the RGMII delay.

Signed-off-by: Jacky Chou <jacky_chou@...eedtech.com>
---
 arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts b/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
index de83c0eb1d6e..1db1f2a02d91 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
@@ -126,6 +126,9 @@ &mac0 {
 	phy-mode = "rgmii-rxid";
 	phy-handle = <&ethphy0>;
 
+	tx-internal-delay-ps = <16>;
+	rx-internal-delay-ps = <10>;
+
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii1_default>;
 };
@@ -137,6 +140,9 @@ &mac1 {
 	phy-mode = "rgmii-rxid";
 	phy-handle = <&ethphy1>;
 
+	tx-internal-delay-ps = <16>;
+	rx-internal-delay-ps = <10>;
+
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii2_default>;
 };
@@ -147,6 +153,9 @@ &mac2 {
 	phy-mode = "rgmii";
 	phy-handle = <&ethphy2>;
 
+	tx-internal-delay-ps = <8>;
+	rx-internal-delay-ps = <4>;
+
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii3_default>;
 };
@@ -157,6 +166,9 @@ &mac3 {
 	phy-mode = "rgmii";
 	phy-handle = <&ethphy3>;
 
+	tx-internal-delay-ps = <8>;
+	rx-internal-delay-ps = <4>;
+
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii4_default>;
 };
-- 
2.34.1


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