Re: Any good alternative to Raspberry for Arm64?

On 2021-Mar-28, at 12:48, Klaus Küchemann via freebsd-arm <freebsd-arm at freebsd.org> wrote:
> 
>> Am 28.03.2021 um 21:35 schrieb Søren Schmidt <[email protected]>:
>> 
>> On 28 Mar 2021, at 21.23, Daniel Engberg <[email protected]> wrote:
>> 
>>> ESD can kill any type of hardware, there are multiple reasons why you shouldn't play around with live hardware and powered off for that matter without any protection regarding ESD. Pretty much all hardware comes with clear instructions and warnings about it. Without getting too technical I say that I have a 3A PSU the runs fine at least for me however quality of PSUs is a different story. It's a RockPro64 paired with a dual port PCIe NIC however I would recommend higher rated one if you plan to attach non external powered USB devices.
>>> 
>>> We only support mainline u-boot, if you're using forks and/or patched versions you're kinda "on your own" and there's no (to my knowledge) support (yet) upstream for booting off NVME or SATA/AHCI.
>> 
>> Well, at least u-boot2021.01 has all the needed support to boot a rockpro64 or pinebookpro from nvme/sata/usb/sd/mmc/net.
>> If you put u-boot into the SPI-flash it will boot from any of the above media.
>> 
>> --
>> Søren Schmidt
>> [email protected] / [email protected]
>> "So much code to hack, so little time“
>> 
> 
> yes, I used 2021.04-rcXX( master, self-compiled)… the strange thing on Rock960-board was that it needed some reboots 
> until nvme was scanned correctly in u-boot-prompt.
> Thean it boots FreeBSD straight up and then hangs on mountroot> ( because there’s no /dev/nda0 or /dev/nvmeXX).
> I presume an electrical issue since it was once(only once) detected by adding nvme_load=„YES“& nvd_load=„YES“ in rc.conf. 
> The u-boot patch related to nvme on that board also was based on a voltage-change .
> … I`ll post some debug-output the next hours… (`guess pcie has mem alloc issue from dmesg)…
> 
> Anyone successfully booting from nvme on any aarch64-board ??

As reported on the list earlier, I plugged a Optane 480 GiByte
into a MACCHIATObin Double Shot's PCIe in a system that's microsd
card had the EDK2-variant build from:

https://unrelentingtech.s3.dualstack.eu-west-1.amazonaws.com/flash-image-2020-07-01-mainline-tfa.bin

and the system just worked (/dev/nda0). I updated the FreeBSD in
this configuration and that booted too.

(The Optane was originally initialized while in a amd64 system
and so was boot-ready when first plugged into an aarch64.)

This is not the MACCHIATObin's normal configuration and things
were put back to normal after the experiment.

The MACCHIATObin Double Shot has 4 Cortex-A72 cores.

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)

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