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arm64: dts: allwinner: t527: orangepi-4a: Enable Ethernet port

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On the Orangepi 4A board, the second Ethernet controller, aka the GMAC200,
is connected to an external Motorcomm YT8531 PHY. The PHY uses an external
25MHz crystal, has the SoC's PI15 pin connected to its reset pin, and
the PI16 pin for its interrupt pin.

Enable it.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250923140247.2622602-7-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
This commit is contained in:
Chen-Yu Tsai
2025-09-23 22:02:46 +08:00
parent 2e5d147ba9
commit a3606e8a78
1 changed files with 23 additions and 0 deletions
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23
arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
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@@ -15,6 +15,7 @@
compatible = "xunlong,orangepi-4a", "allwinner,sun55i-t527";
aliases {
ethernet0 = &gmac1;
serial0 = &uart0;
};
@@ -102,11 +103,33 @@
status = "okay";
};
&gmac1 {
phy-mode = "rgmii-id";
phy-handle = <&ext_rgmii_phy>;
phy-supply = <&reg_cldo4>;
tx-internal-delay-ps = <0>;
rx-internal-delay-ps = <300>;
status = "okay";
};
&gpu {
mali-supply = <&reg_dcdc2>;
status = "okay";
};
&mdio1 {
ext_rgmii_phy: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <1>;
interrupts-extended = <&pio 8 16 IRQ_TYPE_LEVEL_LOW>; /* PI16 */
reset-gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /* PI15 */
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 */