Hi Alex-

The XU4 uses a part from Samsung, so I would not expect it to work without 
major effort. The N2 uses a related Amlogic SoC, so the peripherals are 
probably similar.  However it has asymmetric  processor cores. It might be 
possible to get things bootstrapped, but I don’t think illumos is able to shift 
between cores based on the load. The N2 probably has an external ethernet PHY 
so that would probably need some work as well.

My (highly) personal view is that it would be better to get eMMC, USB and frame 
buffer support for the C2 as well as the bits that are not currently being 
built, like dtrace and some other things (like clock tick decoupling). That 
effort would probably not be a waste of time as vendors typically use 
peripherals from one part to the next. A bigger problem would be getting decent 
data sheet info from Amlogic. It doesn’t look like the *BSDs support these SoCs 
yet, so the road would need to be cut out of the jungle.

I’d be happy to have a chat if anyone is interested in pursuing the ARM path 
further. 

Best,

Bill

> On May 25, 2020, at 7:31 PM, Alex Smith (K4RNT) <[email protected]> 
> wrote:
> 
> Thanks for the quick reply. I have a C2 and an XU4, and the C2 is currently 
> running.
> 
> So I'll basically need a UART serial adapter for these boards. Will get one.
> 
> Is there any possibility of the XU4 or N2 being targeted, along with the C4?
> 
> " 'With the first link, the chain is forged. The first speech censured, the 
> first thought forbidden, the first freedom denied, chains us all 
> irrevocably.' Those words were uttered by Judge Aaron Satie as wisdom and 
> warning... The first time any man's freedom is trodden on, we’re all 
> damaged." - Jean-Luc Picard, quoting Judge Aaron Satie, Star Trek: TNG 
> episode "The Drumhead"
> - Alex Smith
> - Kent, Washington (metropolitan Seattle area)
> 
> 
> On Mon, May 25, 2020 at 1:48 PM H William Welliver <[email protected] 
> <mailto:[email protected]>> wrote:
> Hi Alex,
> 
> I’m not sure there’s a formal group working on the ARM stuff; you’re probably 
> best addressing the group for the best shot at answers. Hayashi Naoyuki 
> created the port; I’m not sure if he has been in touch with you, but he does 
> monitor this group. I was able to get things up and running in my 
> environment; I’ve added a few things to the build required to get pkgsrc 
> bootstrapped and will be sharing those changes as soon as I get some free 
> time. I’m also going to try to prepare an image for folks that would like to 
> play around but don’t want to bother with a logic level serial adapter (there 
> is currently no USB or frame buffer support, so serial console only).
> 
> It’s probably worth noting that the ODroid-C2 is reaching end of life; I sort 
> of expect it will become unavailable some time around the end of the year. 
> Its replacement, the C4 is similar and I suspect the peripherals will be the 
> same, but I expect that there will be effort required to get illumos up and 
> running on it. 
> 
> Bill
> 
>> On May 25, 2020, at 3:14 PM, Alex Smith (K4RNT) <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> Hey guys and gals,
>> 
>> I'm trying to get in touch with the group that is working on ARM 
>> architecture.
>> 
>> Could the people working on ARM with the ODROID SBCs please get in touch 
>> with me?
>> 
>> Thanks much!
>> 
>> " 'With the first link, the chain is forged. The first speech censured, the 
>> first thought forbidden, the first freedom denied, chains us all 
>> irrevocably.' Those words were uttered by Judge Aaron Satie as wisdom and 
>> warning... The first time any man's freedom is trodden on, we’re all 
>> damaged." - Jean-Luc Picard, quoting Judge Aaron Satie, Star Trek: TNG 
>> episode "The Drumhead"
>> - Alex Smith
>> - Kent, Washington (metropolitan Seattle area)
>> 
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