Hi Heiner


On Thu, 25 Mar 2021 at 18:49, Heiner Kallweit [off-list ref] wrote:

On 25.03.2021 13:42, Anand Moon wrote:

quoted

On most of the Amlogic SoC I observed that Ethernet would not get
initialize when try to deploy the mainline kernel, earlier I tried to
fix this issue with by setting ethernet reset but it did not resolve
the issue see below.
      resets = <&reset RESET_ETHERNET>;
      reset-names = "stmmaceth";

After checking what was the missing with Rockchip SoC dts
I tried to add this missing compatible string and then it
started to working on my setup.

Also I tried to fix the device tree binding to validate the changes.

Tested this on my Odroid-N2 and Odroid-C2 (64 bit) setup.
I do not have ready Odroid C1 (32 bit) setup so please somebody test.

When working on the Odroid-C2 I did not have such a problem.
And if you look at of_mdiobus_child_is_phy() and
of_mdiobus_register_phy() you'll see that your change shouldn't be
needed.

I will check this out, thanks for your inputs.

Could you please elaborate on:
- What is the exact problem you're facing? Best add a dmesg log.

   1> I am aware all the distro kernel I have tested ethernet will work file
   2> My issue is when I compile the mainline kernel with the default setting,
       Ethernet interface will not receive any DHCP IP address from the router
       Although the Ethernet interface comes up properly.
      This does not happen frequently but I observed this at my end.
  3> I tried to collect logs but I did not observe any kernel issue
like panic or warning.

- Which kernel version are you using?

     I am using the mainline kernel with default settings.

-Anand

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