[PATCH 5/5] arm64: dts: allwinner: t527: add EMAC0 to Avaoto-A1 board
Yixun Lan
dlan at gentoo.org
Wed Apr 23 07:03:26 PDT 2025
On Avaoto A1 board, the EMAC0 connect to an external RTL8211F-CG PHY,
which features a 25MHz crystal, and using PH8 pin as PHY reset.
Signed-off-by: Yixun Lan <dlan at gentoo.org>
---
I don't own this board, only compose this patch according to the
schematics. Let me know if it works.
---
arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
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 85a546aecdbe149d6bad10327fca1fb7dafff6ad..23ab89c742c679fb274babbb0205f119eb2c9baa 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
@@ -64,6 +64,23 @@ &ehci1 {
status = "okay";
};
+&emac0 {
+ phy-mode = "rgmii";
+ phy-handle = <&ext_rgmii_phy>;
+
+ allwinner,tx-delay-ps = <100>;
+ allwinner,rx-delay-ps = <300>;
+
+ status = "okay";
+};
+
+&mdio0 {
+ ext_rgmii_phy: ethernet-phy at 1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+ };
+};
+
&mmc0 {
vmmc-supply = <®_cldo3>;
cd-gpios = <&pio 5 6 (GPIO_ACTIVE_LOW | GPIO_PULL_DOWN)>; /* PF6 */
--
2.49.0
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