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ARM: sun8i: h3: Enable EMAC with external PHY on Orange Pi Plus 2E

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The Orange Pi Plus 2E, unlike the Orange Pi PC and PC Plus which its
schematics are based on, uses an external Realtek RTL8211E PHY in
RGMII mode, with a GPIO enabling the regulator for I/O signalling
power supplies. The PHY's main power supply is enabled by the main
5V power supply.

Add the regulator and PHY nodes, and override the PHY phandle under
the EMAC node, so that the EMAC works properly on this board.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Chen-Yu Tsai 2017-06-09 23:34:36 +08:00 • committed by Maxime Ripard
parent 252006cf0d
commit 7a78ef92cd
1 changed files with 26 additions and 0 deletions
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26
arch/arm/boot/dts/sun8i-h3-orangepi-plus2e.dts
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@ -50,4 +50,30 @@
/ { / {
model = "Xunlong Orange Pi Plus 2E"; model = "Xunlong Orange Pi Plus 2E";
compatible = "xunlong,orangepi-plus2e", "allwinner,sun8i-h3"; compatible = "xunlong,orangepi-plus2e", "allwinner,sun8i-h3";
reg_gmac_3v3: gmac-3v3 {
compatible = "regulator-fixed";
regulator-name = "gmac-3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
startup-delay-us = <100000>;
enable-active-high;
gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
};
};
&emac {
pinctrl-names = "default";
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_gmac_3v3>;
phy-handle = <&ext_rgmii_phy>;
phy-mode = "rgmii";
status = "okay";
};
&mdio {
ext_rgmii_phy: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <1>;
};
}; };