mvebu: sort patches
[openwrt/openwrt.git] / target / linux / mvebu / patches-5.4 / 317-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch
diff --git a/target/linux/mvebu/patches-5.4/317-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch b/target/linux/mvebu/patches-5.4/317-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch
new file mode 100644 (file)
index 0000000..2240d0b
--- /dev/null
@@ -0,0 +1,34 @@
+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>
+
+--- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
++++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
+@@ -162,7 +162,7 @@
+ };
+ &eth0 {
+-      phy-mode = "sgmii";
++      phy-mode = "2500base-x";
+       status = "okay";
+       managed = "in-band-status";
+       phys = <&comphy1 0>;
+@@ -170,7 +170,7 @@
+ };
+ &eth1 {
+-      phy-mode = "sgmii";
++      phy-mode = "2500base-x";
+       status = "okay";
+       managed = "in-band-status";
+       phys = <&comphy0 1>;