Re: Rock64 vs. USB3 for 14.0-ALPHA2 's Rock64 snapshot vs. device tree update(?)

Reply: Mark Millard : "Re: Rock64 vs. USB3 for 14.0-ALPHA2 's Rock64 snapshot vs. device tree update(?)"
In reply to: Mark Millard : "Re: Rock64 vs. USB3 for 14.0-ALPHA2 's Rock64 snapshot vs. device tree update(?)"
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From: Guy Yur <guyyur_at_gmail.com>
Date: Sun, 20 Aug 2023 18:08:45 UTC
Hi,

On Sun, Aug 20, 2023 at 6:15 PM Mark Millard <marklmi@yahoo.com> wrote:

> On Aug 20, 2023, at 06:50, Guy Yur <guyyur@gmail.com> wrote:
>
>
> > On Sun, Aug 20, 2023 at 9:57 AM Mark Millard <marklmi@yahoo.com> wrote:
> > If I interpret my experiments correctly, 14.0-ALPHA2 no longer
> > supports the Rock64 USB3 port. This might be a side effect of
> > importing more modern device tree source files from Linux. (At
> > least one past import had such an issue for the Rock64, if I
> > remember correctly.)
> >
> > Hi,
> >
> > Does u-boot see the XHCI controller?
>
> U-Boot has never seen the XHCI controller in all the years that
> I've used it. The FreeBSD kernel was the first stage that saw the
> XHCI controller. Relative to booting the Rock64, the stages
> that I've used are:
>
> A) microsd card with U-Boot.
>
> B) an e.MMC with 2 file systems:
>
> B0) an msdosfs with a FreeBSD dtb/ copy and
>      EFI/BOOT/bootaa64.efi .
>
>
I boot from sdcard with msdosfs partition with EFI/BOOT/bootaa64.efi and
the dtb in rockchip/ dir in the partition.
I tested renaming the rockchip dir so the dtb won't be found and there was
still a device tree provided.
seen in devinfo and ofwdump.

B1) a UFS with a (recursive) copy of /boot
>      and an /etc/hostid . The /boot/loader.conf
>      has: vfs.root.mountfrom="ufs:/dev/gpt/Rock64root"
>      (I avoid copying /boot/entropy to the e.MMC .)
>
> C) /dev/gpt/Rock64root has the UFS file system for the
>     world (with the kernel materials too) and is on
>     the USB3 media that I use.
>
> (I have the media set up to also boot aarch64 RPi* .)
>
> 14.0-ALPHA2 loads and starts the kernel from the e.MMC
> just fine. But that kernel does not see what is in the
> USB3 port. It does see the same when instead in the
> other USB ports. Previously used to see the USB3 media
> in the USB3 port just fine and boot world from the USB3
> media.
>
> > I had to backport u-boot changes to sysutils/u-boot-rock64
> > (sysutils/u-boot-master) 2023.07.02 to get it working in
> > u-boot and 14.0-ALPHA1 for Rock64 and Orange Pi R1 Plus.
>
> I've never gone the route of changing U-Boot to handle
> the USB3 port.
>
> > I took the following (I don't know if all are needed):
> >
> https://source.denx.de/u-boot/u-boot/-/commit/caaeac88466f4152bd126e2342765a4b740955ae
> >
> https://source.denx.de/u-boot/u-boot/-/commit/b71f74eab42782199757e146483126aee5e3c271
> >
> https://source.denx.de/u-boot/u-boot/-/commit/559911ff2ed09812fc0a87513183a44d9ee100cf
> >
> https://source.denx.de/u-boot/u-boot/-/commit/185571b6ec301cd228cb059326e51fb51e76e816
> >
> https://source.denx.de/u-boot/u-boot/-/commit/5d334b70cce1d8299202d247011b609faeb8e583
> >
> https://source.denx.de/u-boot/u-boot/-/commit/9aa93d84038bb47bcd4e9ac4287ef63e1b022971
> >
> https://source.denx.de/u-boot/u-boot/-/commit/c0165258582078c206faca352b0f63ccdf535ce7
> >
> https://source.denx.de/u-boot/u-boot/-/commit/b6fd3c63f4c5ba8cad518fa34e6a3289a6976f2e
>
> Intersting. Thanks.
>

I did some more testing.
It seems that rock64 u-boot 2023.07.02 uses an embedded device tree and
passes it to the kernel.
The device-tree in the EFI partition is ignored.

The device tree is a merge of rk3328-rock64.dts
and rk3328-rock64-u-boot.dtsi
and since both rk3328-u-boot.dtsi and rk3328.dtsi have usb@ff600000,
the u-boot.dtsi version with compatible of "rockchip,rk3328-xhci" is used
instead
of "rockchip,rk3328-dwc3" which the FreeBSD kernel knows.

b71f74eab42782199757e146483126aee5e3c271
<https://source.denx.de/u-boot/u-boot/-/commit/b71f74eab42782199757e146483126aee5e3c271>
may
be enough for FreeBSD to see the controller.


>
> > For Orange Pi R1 Plus I also needed the patch adding it:
> >
> https://source.denx.de/u-boot/u-boot/-/commit/69e16c7b1cdd03907b86bb31abee24f5d4836400
> >
> > Unfortunately, there is some issue with the XHCI controller, at list with
> > Realtek RTL8153 USB nic (built in on R1 Plus and tested external card
> > plugged into Rock64) so it might have issues for other USB devices too.
> > The nic doesn't work until the USB bus is reset and can get stuck again.
> > It didn't work on 13.x either.
>
> I've not historically had Rock64 Ethernet problems.
>
>
The problem I have is when connecting a USB ethernet card to Rock64 USB 3.0
port.
The internal ethernet works fine.


>
> ===
> Mark Millard
> marklmi at yahoo.com
>
>
===
Guy Yur