linux-kernel - [PATCH 5.5 056/120] arm64: dts: uDPU: fix broken ethernet

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Date:   Thu, 13 Feb 2020 07:20:52 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Russell King <rmk+kernel@...linux.org.uk>,
        Gregory CLEMENT <gregory.clement@...tlin.com>
Subject: [PATCH 5.5 056/120] arm64: dts: uDPU: fix broken ethernet

From: Russell King <rmk+kernel@...linux.org.uk>

commit 1eebac0240580b531954b02c05068051df41142a upstream.

The uDPU uses both ethernet controllers, which ties up COMPHY 0 for
eth1 and COMPHY 1 for eth0, with no USB3 comphy.  The addition of
COMPHY support made the kernel override the setup by the boot loader
breaking this platform by assuming that COMPHY 0 was always used for
USB3.  Delete the USB3 COMPHY definition at platform level, and add
phy specifications for the ethernet channels.

Fixes: bd3d25b07342 ("arm64: dts: marvell: armada-37xx: link USB hosts with their PHYs")
Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts |    4 ++++
 1 file changed, 4 insertions(+)

--- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
@@ -143,6 +143,7 @@
 	phy-mode = "sgmii";
 	status = "okay";
 	managed = "in-band-status";
+	phys = <&comphy1 0>;
 	sfp = <&sfp_eth0>;
 };
 
@@ -150,11 +151,14 @@
 	phy-mode = "sgmii";
 	status = "okay";
 	managed = "in-band-status";
+	phys = <&comphy0 1>;
 	sfp = <&sfp_eth1>;
 };
 
 &usb3 {
 	status = "okay";
+	phys = <&usb2_utmi_otg_phy>;
+	phy-names = "usb2-utmi-otg-phy";
 };
 
 &uart0 {