On Mon, 2016-10-31 at 11:25 +0100, André Roth wrote:

Hi all,
 

quoted

on my device this results in:
[0xc9410018] = 0x2000000
[0xc9410030] = 0x0
[0xc941003c] = 0x0
[0xc9411000] = 0x1100802
[0xc9411018] = 0x2202006
[0xc9411028] = 0x0

maybe someone else could try the command from above on his device
(running the original Amlogic kernel).

those registers have the same value on an original image from
hardkernel: 

Linux odroid64 3.14.65-65 #1 SMP PREEMPT Sat May 28
02:50:51 BRT 2016 aarch64 aarch64 aarch64 GNU/Linux

quoted

please also state if ethernet is working properly on the original
kernel (and preferably which device/board this is).

yes, the ethernet works flawless in 100 and 1000 Mbit/s on the 3.14
kernel.

Andre, the 3.14 kernel you are talking, is it this one ? : 
https://github.com/hardkernel/linux/tree/odroidc2-3.14.y

Because in drivers/net/phy/realtek.c, they disable EEE, but
also 1000Base-T Full Duplex advertisement ?

+	/* disable 1000m adv*/
+	val = phy_read(phydev, 0x9);
+	phy_write(phydev, 0x9, val&(~(1<<9)));

If this is the kernel you are running, you should not be able to have
ethernet at 1000MB/s ? Or is it in half duplex mode ?

I can now confirm that both 100 and 1000 Mbit/s do not work properly
on the 4.8/integ branch. the network connection is interrupted after
some outbound traffic. it can be recovered by running a ifdown/ifup
which restarts dhclient, which I think is able to somehow reset the
interface. 

Anything I can help to debug the issue further ?

Regards,

 André
 


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