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Diffstat (limited to 'target/linux/mvebu/patches-5.10/314-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch')
-rw-r--r--target/linux/mvebu/patches-5.10/314-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-5.10/314-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch b/target/linux/mvebu/patches-5.10/314-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch
new file mode 100644
index 0000000000..2240d0b39e
--- /dev/null
+++ b/target/linux/mvebu/patches-5.10/314-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch
@@ -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>;