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 337240ebb7b794cd1e7694126e6cd60e6c361fe5..41dc8e35e6ebe4c00bdfa69b8a62f0e1d23d319a 100644 (file)
--- 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>;