[PATCH v3 6/6] arm64: dts: renesas: rzg3l-smarc-som: Enable eth1 (GBETH1) interface
From: Biju
Date: Thu Apr 30 2026 - 08:54:54 EST
From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Enable the Gigabit Ethernet Interface (GBETH1) populated on the RZ/G3L
SMARC EVK.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
v2->v3:
* Dropped ethernet-phy-ieee802.3-c22 from mdio1 device node.
* Fixed typo txdv-skew-psec -> txen-skew-psec.
* Added hotplug support.
v1->v2:
* No change.
---
.../boot/dts/renesas/rzg3l-smarc-som.dtsi | 61 +++++++++++++++++++
1 file changed, 61 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi
index d0516d7db8ba..da6f02287944 100644
--- a/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi
@@ -10,6 +10,7 @@ / {
aliases {
ethernet0 = ð0;
+ ethernet1 = ð1;
};
memory@48000000 {
@@ -32,6 +33,19 @@ ð0_rxc_rx_clk {
clock-frequency = <125000000>;
};
+ð1 {
+ phy-handle = <&phy1>;
+ phy-mode = "rgmii-id";
+
+ pinctrl-0 = <ð1_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+ð1_rxc_rx_clk {
+ clock-frequency = <125000000>;
+};
+
&extal_clk {
clock-frequency = <24000000>;
};
@@ -56,6 +70,26 @@ phy0: ethernet-phy@7 {
};
};
+&mdio1 {
+ phy1: ethernet-phy@7 {
+ compatible = "ethernet-phy-id0022.1640";
+ reg = <7>;
+ interrupts-extended = <&icu 16 IRQ_TYPE_LEVEL_LOW>;
+ rxc-skew-psec = <1400>;
+ txc-skew-psec = <1400>;
+ rxdv-skew-psec = <0>;
+ txen-skew-psec = <0>;
+ rxd0-skew-psec = <0>;
+ rxd1-skew-psec = <0>;
+ rxd2-skew-psec = <0>;
+ rxd3-skew-psec = <0>;
+ txd0-skew-psec = <0>;
+ txd1-skew-psec = <0>;
+ txd2-skew-psec = <0>;
+ txd3-skew-psec = <0>;
+ };
+};
+
&pinctrl {
eth0_pins: eth0 {
txc {
@@ -83,4 +117,31 @@ ctrl {
power-source = <1800>;
};
};
+
+ eth1_pins: eth1 {
+ txc {
+ pinmux = <RZG3L_PORT_PINMUX(E, 1, 1)>; /* ETH1_TXC_REF_CLK */
+ power-source = <1800>;
+ output-enable;
+ drive-strength-microamp = <5200>;
+ };
+
+ ctrl {
+ pinmux = <RZG3L_PORT_PINMUX(D, 1, 1)>, /* MDC */
+ <RZG3L_PORT_PINMUX(D, 0, 1)>, /* MDIO */
+ <RZG3L_PORT_PINMUX(F, 2, 15)>, /* PHY_INTR */
+ <RZG3L_PORT_PINMUX(F, 1, 1)>, /* RXD3 */
+ <RZG3L_PORT_PINMUX(F, 0, 1)>, /* RXD2 */
+ <RZG3L_PORT_PINMUX(E, 7, 1)>, /* RXD1 */
+ <RZG3L_PORT_PINMUX(E, 6, 1)>, /* RXD0 */
+ <RZG3L_PORT_PINMUX(E, 0, 1)>, /* RXC */
+ <RZG3L_PORT_PINMUX(D, 2, 1)>, /* RX_CTL */
+ <RZG3L_PORT_PINMUX(E, 5, 1)>, /* TXD3 */
+ <RZG3L_PORT_PINMUX(E, 4, 1)>, /* TXD2 */
+ <RZG3L_PORT_PINMUX(E, 3, 1)>, /* TXD1 */
+ <RZG3L_PORT_PINMUX(E, 2, 1)>, /* TXD0 */
+ <RZG3L_PORT_PINMUX(D, 3, 1)>; /* TX_CTL */
+ power-source = <1800>;
+ };
+ };
};
--
2.43.0