Patch "ARM: dts: BCM53573: Fix Ethernet info for Luxul devices" has been added to the 5.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

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

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm-dts-bcm53573-fix-ethernet-info-for-luxul-devices.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 1724a8c0644482e5fd7be90259004ac87ca9a503
Author: Rafał Miłecki <rafal@xxxxxxxxxx>
Date:   Thu Jul 13 13:11:45 2023 +0200

    ARM: dts: BCM53573: Fix Ethernet info for Luxul devices
    
    [ Upstream commit 44ad8207806973f4e4f7d870fff36cc01f494250 ]
    
    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.
    
    Fixes: 9fb90ae6cae7 ("ARM: dts: BCM53573: Describe on-SoC BCM53125 rev 4 switch")
    Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230713111145.14864-1-zajec5@xxxxxxxxx
    Signed-off-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts b/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
index 02957850c88a8..5901160919dcd 100644
--- a/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
+++ b/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
@@ -45,3 +45,16 @@ restart {
 		};
 	};
 };
+
+&gmac0 {
+	phy-mode = "rgmii";
+	phy-handle = <&bcm54210e>;
+
+	mdio {
+		/delete-node/ switch@1e;
+
+		bcm54210e: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts b/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
index d68e9dbebf26b..8e7483272d47d 100644
--- a/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
+++ b/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
@@ -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>;
+		};
+	};
+};