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

From: Mark Millard <marklmi_at_yahoo.com>
Date: Sun, 20 Aug 2023 15:15:30 UTC
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 .

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.

> 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.


===
Mark Millard
marklmi at yahoo.com