arm64: dts: marvell: eDPU: add support for version with external switch

New revision of eDPU uses an Marvell MV88E6361 switch to connect the SFP
cage and G.hn IC instead of connecting them directly to the ethernet
controllers.

U-Boot will enable the switch node and disable the unused ethernet
controller.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
index 57fc698e55d0c3125b36dad9a6e946c107bc69d6..d6d37a1f6f3800fefe071a092aa2dd598894245d 100644 (file)
--- a/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
@@ -12,3 +12,50 @@
 &eth0 {
        phy-mode = "2500base-x";
 };
+
+/*
+ * External MV88E6361 switch is only available on v2 of the board.
+ * U-Boot will enable the MDIO bus and switch nodes.
+ */
+&mdio {
+       status = "disabled";
+       pinctrl-names = "default";
+       pinctrl-0 = <&smi_pins>;
+
+       /* Actual device is MV88E6361 */
+       switch: switch@0 {
+               compatible = "marvell,mv88e6190";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0>;
+               status = "disabled";
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               label = "cpu";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               ethernet = <&eth0>;
+                       };
+
+                       port@9 {
+                               reg = <9>;
+                               label = "downlink";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                       };
+
+                       port@a {
+                               reg = <10>;
+                               label = "uplink";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               sfp = <&sfp_eth1>;
+                       };
+               };
+       };
+};