arm64: dts: rockchip: add mdio subnode to gmac on rk3368

This is needed to actually describe the per-board phys connected
to the gmac when needed.

Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Link: https://patch.msgid.link/20251020100757.3669681-3-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index 4c391e2341c539c561e503647ab577385b12f110..f9e24b25274b89147b708a0b1cd77a428d5e84f9 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -501,6 +501,12 @@
                resets = <&cru SRST_MAC>;
                reset-names = "stmmaceth";
                status = "disabled";
+
+               mdio: mdio {
+                       compatible = "snps,dwmac-mdio";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+               };
        };
 
        usb_host0_ehci: usb@ff500000 {