From b1cfbff0a7d386a7b3d3aa19b9971e0ea6d1db65 Mon Sep 17 00:00:00 2001
From: Jakov Petrina <jakov.petrina@sartura.hr>
Date: Fri, 24 Apr 2020 14:38:58 +0200
Subject: mvebu: uDPU: switch default kernel and U-Boot PHY mode

Certain SFP modules (most notably Nokia GPON ones) first check
connectivity on 1000base-x, and switch to 2500base-x afterwards. This
is considered a quirk so the phylink switches the interface to
2500base-x as well.

However, after power-cycling the uDPU device, network interface/SFP module
will not work correctly until the module is re-seated. This patch
resolves this issue by forcing the interface to be brought up in
2500base-x mode by default.

Signed-off-by: Jakov Petrina <jakov.petrina@sartura.hr>
Signed-off-by: Vladimir Vid <vladimir.vid@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>
---
 ...DPU-switch-default-PHY-speed-to-3.125Gbit.patch | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 package/boot/uboot-mvebu/patches/220-arm-dts-uDPU-switch-default-PHY-speed-to-3.125Gbit.patch

(limited to 'package/boot/uboot-mvebu')

diff --git a/package/boot/uboot-mvebu/patches/220-arm-dts-uDPU-switch-default-PHY-speed-to-3.125Gbit.patch b/package/boot/uboot-mvebu/patches/220-arm-dts-uDPU-switch-default-PHY-speed-to-3.125Gbit.patch
new file mode 100644
index 0000000000..0e10b2c767
--- /dev/null
+++ b/package/boot/uboot-mvebu/patches/220-arm-dts-uDPU-switch-default-PHY-speed-to-3.125Gbit.patch
@@ -0,0 +1,43 @@
+--- a/arch/arm/dts/armada-3720-uDPU.dts
++++ b/arch/arm/dts/armada-3720-uDPU.dts
+@@ -109,11 +109,11 @@
+ &comphy {
+ 	phy0 {
+ 		phy-type = <PHY_TYPE_SGMII1>;
+-		phy-speed = <PHY_SPEED_1_25G>;
++		phy-speed = <PHY_SPEED_3_125G>;
+ 	};
+         phy1 {
+                 phy-type = <PHY_TYPE_SGMII0>;
+-                phy-speed = <PHY_SPEED_1_25G>;
++                phy-speed = <PHY_SPEED_3_125G>;
+         };
+ 
+         phy2 {
+@@ -125,22 +125,16 @@
+ &eth0 {
+ 	pinctrl-0 = <&pcie_pins>;
+ 	status = "okay";
+-	phy-mode = "sgmii";
++	phy-mode = "sgmii-2500";
++	managed = "in-band-status";
+ 	phy = <&ethphy0>;
+-	fixed-link {
+-		speed = <1000>;
+-		full-duplex;
+-	};
+ };
+ 
+ &eth1 {
+ 	status = "okay";
+-	phy-mode = "sgmii";
++	phy-mode = "sgmii-2500";
++	managed = "in-band-status";
+ 	phy = <&ethphy1>;
+-	fixed-link {
+-		speed = <1000>;
+-		full-duplex;
+-	};
+ };
+ 
+ &i2c0 {
-- 
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