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Date:      Sun, 21 Jun 2020 11:38:38 +0200
From:      =?utf-8?Q?S=C3=B8ren_Schmidt?= <soren.schmidt@gmail.com>
To:        Emmanuel Vadot <manu@bidouilliste.com>
Cc:        charlesr@scd-systems.net, freebsd-arm@freebsd.org
Subject:   Re: Rock64 dwc interface issues
Message-ID:  <48C101F9-9C1F-46EB-A092-EE903D5070D1@gmail.com>
In-Reply-To: <20200619194222.73bc7dd705f6d80e63757796@bidouilliste.com>
References:  <877d6e2d-6cd8-30f3-08c3-60a2bacb5873@scd-systems.net> <7B4746AD-A8B7-43F0-B5EC-F3812A91F344@gmail.com> <20200619194222.73bc7dd705f6d80e63757796@bidouilliste.com>

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On 19 Jun 2020, at 19.42, Emmanuel Vadot <manu@bidouilliste.com> wrote:

>=20
> I've just took the last image for rock64 and rockpro64 to test on my
> boards (I usually netboot but testing the image give a common =
reference
> between everyone).
> As a reference the image I've burned on the sd are :
> FreeBSD-13.0-CURRENT-arm64-aarch64-ROCK64-20200618-r362292.img.xz
> FreeBSD-13.0-CURRENT-arm64-aarch64-ROCKPRO64-20200618-r362292.img.xz
>=20
> On Rock64 v2.0 (2017-0713) I see no issues, I got an IP from my dhcp
> server and could install packages properly.
> Using iperf3 I have ~275Mbits/sec which isn't great but we're aware of
> the bad perf of the dwc(4) driver.

I checked my build env, and the error was that I didn=E2=80=99t change =
the u-boot used (got the pinebookpro version mixed in).
Using the correct u-boot makes the dwc net work.
However, I did use the correct DTB for the kernel to use (static build =
in to be sure), so it should have configured things correctly =
shouldn=E2=80=99t it ? I guess we inherit lots of things from u-boot =
that does not get initialised by the kernel even if the correct DTB is =
in place.
Funny thing is that it appeared to work, led=E2=80=99s and all, but no =
traffic was coming through.

> On RockPro64 v2.1 I also see no issues, iperf3 give the same speed
> result for tx but rx is worse (~100Mbits/sec).

It the 2.1 version I=E2=80=99ve got btw.

> S=C3=B8ren, what are your hack for R40 (which do not have support for =
in
> term of clock so I'm not surprise that you need "something" for it).=20=


I have implemented the clks etc that=E2=80=99s missing from our support, =
but instead of mutilating the dwc driver, I=E2=80=99ve hacked up an =
older version (before syscon etc went in) and made it work with the R40 =
way of things as a new driver.
All this is done on a 12-stable tree though, but I guess it could be =
moved to -current rather easily. It does make the Bananapi M2 Berry work =
quite nicely (except video which I have no use for.

-S=C3=B8ren=



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