[PATCH 4/5] arm64: dts: allwinner: a527: add EMAC0 to Radxa A5E board
Yixun Lan
dlan at gentoo.org
Wed Apr 23 07:03:25 PDT 2025
On Radxa A5E board, the EMAC0 connect to an external YT8531C PHY,
which features a 25MHz crystal, and using PH8 pin as PHY reset.
Tested on A5E board with schematic V1.20.
Signed-off-by: Yixun Lan <dlan at gentoo.org>
---
arch/arm64/boot/dts/allwinner/sun55i-a527-radxa-a5e.dts | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a527-radxa-a5e.dts b/arch/arm64/boot/dts/allwinner/sun55i-a527-radxa-a5e.dts
index 912e1bda974ce5f64c425e371357b1a78b7c13dd..b3399a28badb5172801e47b8a45d5b753fc56ef1 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a527-radxa-a5e.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a527-radxa-a5e.dts
@@ -54,6 +54,23 @@ &ehci1 {
status = "okay";
};
+&emac0 {
+ phy-mode = "rgmii";
+ phy-handle = <&ext_rgmii_phy>;
+
+ allwinner,tx-delay-ps = <300>;
+ allwinner,rx-delay-ps = <400>;
+
+ 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
More information about the linux-arm-kernel
mailing list