linux-kernel - [PATCH RFT net-next 07/10] arm64: dts: allwinner: a527: cubie-a5e: Enable second Ethernet port

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Message-Id: <20250701165756.258356-8-wens@kernel.org>
Date: Wed,  2 Jul 2025 00:57:53 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej@...nel.org>,
	Samuel Holland <samuel@...lland.org>
Cc: netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Andre Przywara <andre.przywara@....com>
Subject: [PATCH RFT net-next 07/10] arm64: dts: allwinner: a527: cubie-a5e: Enable second Ethernet port

From: Chen-Yu Tsai <wens@...e.org>

On the Radxa Cubie A5E board, the second Ethernet controller, aka the
GMAC200, is connected to a second external Maxio MAE0621A PHY. The PHY
uses an external 25MHz crystal, and has the SoC's PJ16 pin connected to
its reset pin.

Enable the second Ethernet port. Also fix up the label for the existing
external PHY connected to the first Ethernet port.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 .../dts/allwinner/sun55i-a527-cubie-a5e.dts   | 26 +++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
index c57ecc420aed..4b510a460123 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
@@ -13,6 +13,7 @@ / {
 
 	aliases {
 		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
 		serial0 = &uart0;
 	};
 
@@ -57,7 +58,7 @@ &ehci1 {
 
 &gmac0 {
 	phy-mode = "rgmii-id";
-	phy-handle = <&ext_rgmii_phy>;
+	phy-handle = <&ext_rgmii0_phy>;
 	phy-supply = <&reg_cldo3>;
 
 	allwinner,tx-delay-ps = <300>;
@@ -66,8 +67,19 @@ &gmac0 {
 	status = "okay";
 };
 
+&gmac1 {
+	phy-mode = "rgmii-id";
+	phy-handle = <&ext_rgmii1_phy>;
+	phy-supply = <&reg_cldo4>;
+
+	allwinner,tx-delay-ps = <300>;
+	allwinner,rx-delay-ps = <400>;
+
+	status = "okay";
+};
+
 &mdio0 {
-	ext_rgmii_phy: ethernet-phy@1 {
+	ext_rgmii0_phy: ethernet-phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
 		reg = <1>;
 		reset-gpios = <&pio 7 8 GPIO_ACTIVE_LOW>; /* PH8 */
@@ -76,6 +88,16 @@ ext_rgmii_phy: ethernet-phy@1 {
 	};
 };
 
+&mdio1 {
+	ext_rgmii1_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <1>;
+		reset-gpios = <&pio 9 16 GPIO_ACTIVE_LOW>; /* PJ16 */
+		reset-assert-us = <10000>;
+		reset-deassert-us = <150000>;
+	};
+};
+
 &mmc0 {
 	vmmc-supply = <&reg_cldo3>;
 	cd-gpios = <&pio 5 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PF6 */
-- 
2.39.5