[PATCH net-next v3 5/5] riscv: dts: spacemit: Add Ethernet support for Jupiter

[Junhui Liu]

Hi Vivian,
Thanks for you work!

On 2025/7/2 14:01, Vivian Wang wrote:
> Milk-V Jupiter uses an RGMII PHY for each port and uses GPIO for PHY
> reset.
>
> Signed-off-by: Vivian Wang <wangruikang at iscas.ac.cn>

Successfully tested with iperf3 on Milk-V Jupiter.

TCP Rx: 941 Mbits/sec
TCP Tx: 943 Mbits/sec
UDP Rx: 956 Mbits/sec
UDP Tx: 956 Mbits/sec

Tested-by: Junhui Liu <junhui.liu at pigmoral.tech>

> ---
>   arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts | 46 +++++++++++++++++++++++
>   1 file changed, 46 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
> index 4483192141049caa201c093fb206b6134a064f42..c5933555c06b66f40e61fe2b9c159ba0770c2fa1 100644
> --- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
> +++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
> @@ -20,6 +20,52 @@ chosen {
>   	};
>   };
>   
> +&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 at 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 at 1 {
> +			reg = <0x1>;
> +		};
> +	};
> +};
> +
>   &uart0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&uart0_2_cfg>;
>
-- 
Best regards,
Junhui Liu