mediatek: add support for Ubiquiti UniFi 6 LR v3

Some recent models of the Ubiquiti Networks UniFi 6 LR access point
come with a RealTek RTL8211FS 1000M/100M/10M PHY instead of the
Aquantia AQR112 2500M/1000M/100M/10M PHY used in both v1 and v2. Add
build for this variant so we can support Ethernet with the PHY.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit a0f4eadf6a25fb54c189bde91425673e11125d35)

1 files changed, 50 insertions, 0 deletions

diff --git a/target/linux/mediatek/dts/mt7622-ubnt-unifi-6-lr-v3.dtsi b/target/linux/mediatek/dts/mt7622-ubnt-unifi-6-lr-v3.dtsi
new file mode 100644
index 0000000000..c581bd7d90
--- /dev/null
+++ b/target/linux/mediatek/dts/mt7622-ubnt-unifi-6-lr-v3.dtsi
@@ -0,0 +1,50 @@
+#include "mt7622-ubnt-unifi-6-lr.dtsi"
+
+/ {
+	aliases {
+		led-boot = &led_white;
+		led-failsafe = &led_white;
+		led-running = &led_blue;
+		led-upgrade = &led_blue;
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led_white: dome_white {
+			label = "white:dome";
+			gpios = <&pio 0x43 GPIO_ACTIVE_LOW>;
+		};
+
+		led_blue: dome_blue {
+			label = "blue:dome";
+			gpios = <&pio 0x44 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&eth {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth_pins>;
+
+	gmac0: mac@0 {
+		compatible = "mediatek,eth-mac";
+		reg = <0>;
+
+		phy-mode = "sgmii";
+		phy-handle = <&phy0>;
+		phy-connection-type = "sgmii";
+		managed = "in-band-status";
+	};
+
+	mdio: mdio-bus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0x0>;
+		};
+	};
+};