target/linux/mvebu/patches-5.10/315-arm64-dts-uDPU-switch-PHY-operation-mode-to-2500base.patch

   1 Certain SFP modules (most notably Nokia GPON ones) first check
   2 connectivity on 1000base-x, and switch to 2500base-x afterwards. This
   3 is considered a quirk so the phylink switches the interface to
   4 2500base-x as well.
   5
   6 However, after power-cycling the uDPU device, network interface/SFP module
   7 will not work correctly until the module is re-seated. This patch
   8 resolves this issue by forcing the interface to be brought up in
   9 2500base-x mode by default.
  10
  11 Signed-off-by: Jakov Petrina <jakov.petrina@sartura.hr>
  12 Signed-off-by: Vladimir Vid <vladimir.vid@sartura.hr>
  13 Cc: Luka Perkov <luka.perkov@sartura.hr>
  14
  15 --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  16 +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  17 @@ -162,7 +162,7 @@
  18  };
  19
  20  &eth0 {
  21 -       phy-mode = "sgmii";
  22 +       phy-mode = "2500base-x";
  23         status = "okay";
  24         managed = "in-band-status";
  25         phys = <&comphy1 0>;
  26 @@ -170,7 +170,7 @@
  27  };
  28
  29  &eth1 {
  30 -       phy-mode = "sgmii";
  31 +       phy-mode = "2500base-x";
  32         status = "okay";
  33         managed = "in-band-status";
  34         phys = <&comphy0 1>;