On 24/09/2021 04:32, Troy Lee wrote:
> Hi Graeme,
>
> We'd like to ask you to dump SCU registers (0x1e6e2000 ~ 0x1e6e2fff) with your current image, then we could check the mac clock delay is correctly set.
> You could use UART debug controller (datasheet section 11) if devmem is not available.
>
> Thanks,
> Troy Lee

Hi Troy,

If I got my devmem magic correct then this is the dump of that memory 
region attached.

Thanks

Graeme


>> -----Original Message-----
>> From: Graeme Gregory <quic_ggregory@quicinc.com>
>> Sent: Friday, September 24, 2021 5:23 AM
>> To: Troy Lee <troy_lee@aspeedtech.com>; OpenBMC Maillist
>> <openbmc@lists.ozlabs.org>
>> Subject: Re: AST2600 EVB eth0 (MAC1) Issue
>>
>> On 23/09/2021 10:09, Troy Lee wrote:
>>> Hi Gaeme,
>>>
>>> Which soc revision and evb board revision are you using?
>>> Can you try to use phy-mode = "rgmii-rxid" for eth0/1 in your dts?
>>>
>>> Thanks,
>>> Troy Lee
>> Hi Troy,
>>
>> Soc Rev:-
>>
>> U-Boot 2019.04-00083-ge5902174d9-dirty (Sep 22 2021 - 15:10:03 +0000)
>>
>> SOC: AST2600-A1
>>
>>
>> EVB Rev:-
>>
>> AST2600-DDR4 EVB V1.4
>>
>>
>> phy-mode = "rgmii-rxid" instead of "rgmii" improves the issue and I now get
>> DHCP on that interface, but packet loss is still hight compared to
>> eth1 (MAC2).
>>
>> eth0
>> ping -f 192.168.222.119
>> PING 192.168.222.119 (192.168.222.119) 56(84) bytes of data.
>> ................................................................................................................
>> ................................................................................................................
>> .............................................................................................^C
>> --- 192.168.222.119 ping statistics ---
>> 597 packets transmitted, 330 received, 44.7236% packet loss, time 6775ms
>> rtt min/avg/max/mdev = 0.078/809.845/3266.263/1099.208 ms, pipe 205,
>> ipg/ewma 11.367/30.024 ms
>>
>> eth1
>> ping -f 192.168.222.30
>> [sudo] password for ggregory:
>> PING 192.168.222.30 (192.168.222.30) 56(84) bytes of data.
>> .^C
>> --- 192.168.222.30 ping statistics ---
>> 50591 packets transmitted, 50590 received, 0.00197664% packet loss, time
>> 5550ms rtt min/avg/max/mdev = 0.083/0.105/0.816/0.004 ms, ipg/ewma
>> 0.109/0.104 ms
>>
>> Thanks
>>
>> Graeme
>>
>>>> -----Original Message-----
>>>> From: openbmc <openbmc-
>>>> bounces+troy_lee=aspeedtech.com@lists.ozlabs.org> On Behalf Of
>> Graeme
>>>> Gregory
>>>> Sent: Wednesday, September 22, 2021 11:49 PM
>>>> To: OpenBMC Maillist <openbmc@lists.ozlabs.org>
>>>> Subject: AST2600 EVB eth0 (MAC1) Issue
>>>>
>>>> Hi,
>>>>
>>>> I know A0 versions of the AST2600 had an issue where eth0 was not
>>>> working, but the errata indicates this is fixed in later revisions.
>>>>
>>>> I am seeing an issue on the EVB board though where eth0 (MAC1) is not
>>>> functional. The other three ports all function as expected.
>>>>
>>>> On my DHCP host machine I can see DHCP requests from the AST2600,
>> and
>>>> replies are sent. Looking at /proc/interrupts it looks very much like
>>>> no IRQs are ever generated for incoming packets.
>>>>
>>>> Thanks
>>>>
>>>> Graeme
>>>>