Jump to content

2x identical Cubieboard 2 boards with different LAN behavior


Mischa

Recommended Posts

This is a really weird struggle: I have 2x cubieboard that are exactly identical (same HW, same board revision) including the LAN chip (realtek RTL8201CP). Both boards work fine with an earlier version of Armbian. I learned that there is an (unsupported) Armbian 21.08.1 Bullseye with Linux 5.15.25-sunxi which I installed on both. Behavior however differs with the LAN (eth0) interface. The one board works straight from install with DHCP (default), the 2nd won't work at all.

 

dmesg | grep eth (partially) outputs:

sun7i-dwmac 1c50000.ethernet eth0: no phy at addr -1

sun7i-dwmac 1c50000.ethernet eth0: stmmac_open: Cannot attach to PHY (error: -19)

 

nmcli outputs:

eth0: disconnected

            "eth0"

            1 connection available

            ethernet (sun7i-dwmac), 02:50:08:01:72:49, hw, mtu 1500

 

I am certain that a proper connection is available, putting in a different sdcard with alternative (old) version of armbian runs fine with LAN. Bullseye is desired because of proper SUNXI audio codec implementation (capture side / line in). 

 

There is no background I can figure for the differences, I will be very happy to receive suggestions what I could do to handle this. 

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

Terms of Use - Privacy Policy - Guidelines