Thread (8 messages) 8 messages, 2 authors, 2025-09-01
STALE329d REVIEWED: 1 (0M)

[PATCH net-next v8 5/5] riscv: dts: spacemit: Add Ethernet support for Jupiter

From: Vivian Wang <hidden>
Date: 2025-08-28 08:48:18
Also in: linux-riscv, lkml, netdev, spacemit
Subsystem: risc-v architecture, risc-v spacemit soc support, the rest · Maintainers: Paul Walmsley, Palmer Dabbelt, Albert Ou, Yixun Lan, Linus Torvalds

Milk-V Jupiter uses an RGMII PHY for each port and uses GPIO for PHY
reset.

Signed-off-by: Vivian Wang <redacted>
Reviewed-by: Yixun Lan <redacted>
---
 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@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>;
+		};
+	};
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_2_cfg>;
-- 
2.50.1
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