[PATCH net-next v3 09/10] arm64: dts: allwinner: t527: avaota-a1: enable second Ethernet port
From: Chen-Yu Tsai <wens@kernel.org>
Date: 2025-09-06 04:13:44
Also in:
linux-arm-kernel, linux-devicetree, linux-sunxi, lkml
Subsystem:
arm/allwinner sunxi soc support, the rest · Maintainers:
Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Linus Torvalds
From: Chen-Yu Tsai <redacted> On the Avaota A1 board, the second Ethernet controller, aka the GMAC200, is connected to a second external RTL8211F-CG 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. Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Chen-Yu Tsai <redacted> --- Changes since v1: - Switch to generic (tx|rx)-internal-delay-ps properties --- .../dts/allwinner/sun55i-t527-avaota-a1.dts | 26 +++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
index e7713678208d..f540965ffaa4 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts@@ -13,6 +13,7 @@ / { aliases { ethernet0 = &gmac0; + ethernet1 = &gmac1; serial0 = &uart0; };
@@ -67,7 +68,7 @@ &ehci1 { &gmac0 { phy-mode = "rgmii-id"; - phy-handle = <&ext_rgmii_phy>; + phy-handle = <&ext_rgmii0_phy>; phy-supply = <®_dcdc4>; allwinner,tx-delay-ps = <100>;
@@ -76,13 +77,24 @@ &gmac0 { status = "okay"; }; +&gmac1 { + phy-mode = "rgmii-id"; + phy-handle = <&ext_rgmii1_phy>; + phy-supply = <®_dcdc4>; + + tx-internal-delay-ps = <100>; + rx-internal-delay-ps = <100>; + + status = "okay"; +}; + &gpu { mali-supply = <®_dcdc2>; 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 */
@@ -91,6 +103,16 @@ 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 = <®_cldo3>; cd-gpios = <&pio 5 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PF6 */
--
2.39.5