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Troubleshooting: Network does not work on hi35xx

If network is not working on your hi35xx device after installing OpenIPC (no link), you may have to tune the MII (Media Independent Interface) settings.
For U-Boot, this is done by setting values for phyaddru, phyaddrd and mdio_intf. Possible values for phyaddru and phyaddrd are: 0-3, possible values for mdio_intf are: rmii, rgmii, gmii.
For the Linux kernel / OS, values can be set through the extras boot variables hieth.phyaddru, hieth.phyaddrd, hieth.mdioifu and hieth.mdioifd.

Often the correct values can be found in your stock firmware. Viewing the boot logs or running ipctool on your stock firmware may provide clues.

Below are some combinations you can try:

For ethernet in Linux:

In Linux console run this:

fw_setenv extras 'hieth.phyaddru=0 hieth.phyaddrd=1' && reboot

If the above settings did not work, try this instead:

fw_setenv extras 'hieth.phyaddru=1 hieth.phyaddrd=0' && reboot

Or:

fw_setenv extras 'hieth.mdioifu=0 hieth.mdioifd=0' && reboot

Or:

fw_setenv extras 'hieth.mdioifu=1 hieth.mdioifd=1' && reboot

Or:

fw_setenv extras hieth.mdioifu=0 hieth.mdioifd=0 hieth.phyaddru=1 hieth.phyaddrd=2 && reboot

Or:

fw_setenv extras hieth.phyaddru=3 hieth.mdioifu=0 && reboot

Note: if a certain combination causes your device to fail to boot, you can clear the variable(s) in the U-Boot prompt by calling setenv <variable>, i.e. set the variable using an empty argument, followed by saveenv.

For ethernet in U-boot:

Set phyaddru and phyaddrd variables from U-Boot console:

setenv phyaddru 0; setenv phyaddrd 1; saveenv; reset

If the above settings did not work, try this instead

setenv phyaddru 1; setenv phyaddrd 0; saveenv; reset

Or:

setenv phyaddru 0; setenv phyaddrd 0; saveenv; reset

Or:

setenv phyaddru 1; setenv phyaddrd 1; saveenv; reset

Note: to initialize and test network connectivity in U-Boot, the ping command can be used.

Some known combinations for specific boards:

XiongMai, HI3518EV100

For U-boot network:

    setenv phyaddru 1
    setenv phyaddrd 2
    setenv mdio_intf rmii
    saveenv

For Linux network:

    setenv extras 'hieth.phyaddru=1 hieth.phyaddrd=2'
    saveenv

XiongMai IPG-53H20AF, HI3516CV100

For Linux network:

   setenv hieth.mdioifu=0 hieth.mdioifd=0 hieth.phyaddru=1 hieth.phyaddrd=2
   saveenv

CamHi/HiChip/Xin, HI3518EV200

For U-boot network:

    setenv phyaddru 0
    setenv phyaddrd 1
    saveenv

HiWatch, HI3518CV100

For U-boot network:

    setenv phyaddru 3
    saveenv

For Linux network:

    setenv extras 'hieth.phyaddru=3 hieth.mdioifu=0'
    saveenv

Harex (5013A-CF/5020A-FF), HI3516CV100

For U-boot network:

    setenv extras 'hieth.phyaddru=1 hieth.mdioifu=0'
    saveenv

If nothing of the above worked for you, please ask in our Telegram channel.