ARM: dts: BCM53573: Fix Ethernet info for Luxul devices

From: Rafał Miłecki <[email protected]>

Both Luxul's XAP devices (XAP-810 and XAP-1440) are access points that use a non-default design. They don't include switch but have a single Ethernet port and BCM54210E PHY connected to the Ethernet controller's MDIO bus.

Support for those devices regressed due to two changes:

1. Describing MDIO bus with switch
After commit 9fb90ae6cae7 ("ARM: dts: BCM53573: Describe on-SoC BCM53125 rev 4 switch") Linux stopped probing for MDIO devices.

2. Dropping hardcoded BCM54210E delays
In commit fea7fda7f50a ("net: phy: broadcom: Fix RGMII delays configuration for BCM54210E") support for other PHY modes was added but that requires a proper "phy-mode" value in DT.

Both above changes are correct (they don't need to be reverted or anything) but they need this fix for DT data to be correct and for Linux to work properly.

---
 .../boot/dts/broadcom/bcm47189-luxul-xap-1440.dts   | 13 +++++++++++++
 .../boot/dts/broadcom/bcm47189-luxul-xap-810.dts    | 13 +++++++++++++
 2 files changed, 26 insertions(+)

index b9dd50844419..0f6d7fe30068 100644
@@ -45,3 +45,16 @@ button-restart {
 		};
 	};
 };
+
+&gmac0 {
+	phy-mode = "rgmii";
+	phy-handle = <&bcm54210e>;
+
+	mdio {
+		/delete-node/ switch@1e;
+
+		bcm54210e: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};

index cb22ae2a02e5..4e0ef0af726f 100644
@@ -81,3 +81,16 @@ pcie0_chipcommon: chipcommon@0 {
 		};
 	};
 };
+
+&gmac0 {
+	phy-mode = "rgmii";
+	phy-handle = <&bcm54210e>;
+
+	mdio {
+		/delete-node/ switch@1e;
+
+		bcm54210e: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};

2.35.3

From: Florian Fainelli <[email protected]>

Applied to https://github.com/Broadcom/stblinux/commits/devicetree/next, thanks! --
Florian