From: Michael Opdenacker <michael.opdenacker@rootcommit.com>
Date: Wed, 22 Oct 2025 20:18:38 +0000 (+0000)
Subject: riscv: dts: spacemit: add Ethernet and PDMA to OrangePi RV2
X-Git-Tag: v6.19-rc1~100^2~27^2~7
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9813395078352fed03c88742bd39b9c4a0e40c15;p=thirdparty%2Fkernel%2Flinux.git

riscv: dts: spacemit: add Ethernet and PDMA to OrangePi RV2

The OrangePi RV2 board ships two RGMII ethernet ports.
Each has an external Motorcomm YT8531C PHY attached, the PHY uses GPIO
for reset pin control.

Enable PDMA for the SpacemiT K1-based SoC in the OrangePi RV2 board.

Signed-off-by: Michael Opdenacker <michael.opdenacker@rootcommit.com>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Link: https://lore.kernel.org/r/20251022201807.1474789-2-michael.opdenacker@rootcommit.com
Signed-off-by: Yixun Lan <dlan@gentoo.org>
---

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
index 337240ebb7b79..41dc8e35e6ebe 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
@@ -15,6 +15,8 @@
 
 	aliases {
 		serial0 = &uart0;
+		ethernet0 = &eth0;
+		ethernet1 = &eth1;
 	};
 
 	chosen {
@@ -33,6 +35,56 @@
 	};
 };
 
+&eth0 {
+	phy-handle = <&rgmii0>;
+	phy-mode = "rgmii-id";
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac0_cfg>;
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
+	status = "okay";
+
+	mdio-bus {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		reset-gpios = <&gpio K1_GPIO(110) GPIO_ACTIVE_LOW>;
+		reset-delay-us = <10000>;
+		reset-post-delay-us = <100000>;
+
+		rgmii0: phy@1 {
+			reg = <0x1>;
+		};
+	};
+};
+
+&eth1 {
+	phy-handle = <&rgmii1>;
+	phy-mode = "rgmii-id";
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac1_cfg>;
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <250>;
+	status = "okay";
+
+	mdio-bus {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		reset-gpios = <&gpio K1_GPIO(115) GPIO_ACTIVE_LOW>;
+		reset-delay-us = <10000>;
+		reset-post-delay-us = <100000>;
+
+		rgmii1: phy@1 {
+			reg = <0x1>;
+		};
+	};
+};
+
+&pdma {
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_2_cfg>;