Rock64 dwc interface issues

[Charles]

Hi,


Short update.

I tried the patch from gonzo and the "IP truncated-ip - 16384 bytes 
missing" messages from tcpdump disappeard.
But the packet lost did still exists until I changed the value:

hw.usb.dwc_otg.phy_type to 4 (UTMI+).

Before it was set to 1

(DWC OTG PHY TYPE - 0/1/2/3 - ULPI/HSIC/INTERNAL/UTMI+)

I tried all types, only the UTMI+ type seems to work stable with my 
rock64 board.

Is that expected for this board with FreeBSD?

I did not compared linux right now.
Maybe linux use also the UTMI+ type for OTG.


Best,
C.


Am 24.06.20 um 14:52 schrieb Emmanuel Vadot:
> On Mon, 22 Jun 2020 12:10:15 -0700
> Oleksandr Tymoshenko <gonzo at bluezbox.com> wrote:
> 
>> Charles (charlesr at scd-systems.net) wrote:
>>> Hi gonzo,
>>>
>>>
>>> In 100Mbit mode the interface does not respond to any arp who-is
>>> requests (tcpdump). So no icmp request are send nor received the rock64.
>>> Then I tried to connect the laptop directly to the rock64 (Interface to
>>> interface connection 1GBit) --> Same packet lost issue as before.
>>>
>>> The tcpdump on dwc0 interface reports:
>>>
>>> IP truncated-ip - 16384 bytes missing
>>>
>>>
>>> I also tried to replace the /boot/dtb/rockchip/rk3328-rock64.dtb against
>>> the Linux version (75kb size instead 54kb size FreeBSD Version) without
>>> success.
>>
>> Could you try this patch?
>>
>> https://people.freebsd.org/~gonzo/arm/patches/dwc-rk-delays.diff
>>
>> -- 
>> gonzo
> 
>   Hi gonzo,
> 
>   Just tested this patch on rockpro64 and rock64 and this works for me.
>   Whatever leads me to commit
> https://svnweb.freebsd.org/base?view=revision&revision=335445 seems
> fixed now ?
>   In rk3399_set_delays you print rk3328 btw. And both printfs that shows
> the delay should be under bootverbose.
>   With that you can commit with Reviewed by: manu :)
> 
>   I don't think that it will help Charles but the code make sense and
> matches the TRM.
> 
>   Thanks,
>