[gentoo-user] AMD lappy

[gentoo-user] AMD lappy

[james]

Hello One and All,

It's time for the old man to get a new portable. Ideally,
It be great if it were similar to other laptops, used by gentoo folks,
so getting the drivers all happy would be consistent. (sure a bit
idealized but not a bad idea?)

So here is what I like  (ALL AMD/Radeon)

Arm processor,
High end video card (what you can get now in a laptop or by Jan 1, 2019.
DDR 4
1 T SSD (dual drives would be keen for dual boot (doz_10)
USB 3.1+
17" screen or larger.

Please post any and all ideas, including (4) embedded arm boards
taped to the back of a 4K high res monitor.

Absolutely no Nvidia or Intel!
Any idea when all of this is going to be on 7nm?


Anxiously awaiting ideas,
James

[gentoo-user] Re: AMD lappy

[Grant Edwards]

On 2018-11-17, james <garftd@verizon.net> wrote:

> It's time for the old man to get a new portable.

> Arm processor,

That's going to be tough.  The only ones I've ever heard of are
Chromebooks.

-- 
Grant

Re: [gentoo-user] Re: AMD lappy

[james]

On 11/17/18 12:17 PM, Grant Edwards wrote:
> On 2018-11-17, james <garftd@verizon.net> wrote:
> 
>> It's time for the old man to get a new portable.
> 
>> Arm processor,
> 
> That's going to be tough.  The only ones I've ever heard of are
> Chromebooks.
> 


Dell is on the move, but what I found (looking for old link now)
had a mechanical HD with no SSD upgrade option; everthing else was fine.

https://www.dell.com/en-us/shop/enabling-today-inspiring-tomorrow/ab/enabling-today-inspiring-tomorrow


https://www.dell.com/en-us/shop/dell-laptops/inspiron-17-5000/spd/inspiron-17-5775-laptop/dncwlgamd7005h


Purported to have linux options of buntu or redhat  (coreOS version?)
I guess IBM is really challenged with old RHEL and CoreOS.....

[gentoo-user] Re: AMD lappy

[Grant Edwards]

On 2018-11-17, james <garftd@verizon.net> wrote:
> On 11/17/18 12:17 PM, Grant Edwards wrote:
>> On 2018-11-17, james <garftd@verizon.net> wrote:
>> 
>>> It's time for the old man to get a new portable.
>> 
>>> Arm processor,
>> 
>> That's going to be tough.  The only ones I've ever heard of are
>> Chromebooks.
>
> Dell is on the move, but what I found (looking for old link now)
> had a mechanical HD with no SSD upgrade option; everthing else was fine.
>
> https://www.dell.com/en-us/shop/enabling-today-inspiring-tomorrow/ab/enabling-today-inspiring-tomorrow

>
> https://www.dell.com/en-us/shop/dell-laptops/inspiron-17-5000/spd/inspiron-17-5775-laptop/dncwlgamd7005h

Not an Arm processor.

Or do you mean AMD?

-- 
Grant

Re: [gentoo-user] Re: AMD lappy

[james]

On 11/17/18 4:03 PM, Grant Edwards wrote:
> On 2018-11-17, james <garftd@verizon.net> wrote:
>> On 11/17/18 12:17 PM, Grant Edwards wrote:
>>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>>
>>>> It's time for the old man to get a new portable.
>>>
>>>> Arm processor,
>>>
>>> That's going to be tough.  The only ones I've ever heard of are
>>> Chromebooks.
>>
>> Dell is on the move, but what I found (looking for old link now)
>> had a mechanical HD with no SSD upgrade option; everthing else was fine.
>>
>> https://www.dell.com/en-us/shop/enabling-today-inspiring-tomorrow/ab/enabling-today-inspiring-tomorrow
> 
>>
>> https://www.dell.com/en-us/shop/dell-laptops/inspiron-17-5000/spd/inspiron-17-5775-laptop/dncwlgamd7005h
> 
> Not an Arm processor.
> 
> Or do you mean AMD?
> 


Actually and AMD Arm (64bit)  Ryzen or newer.

After some time on the phone with dell, I found a linux sales guy that
has the list and is researching "when" what I want will be available.

[gentoo-user] Re: AMD lappy

[Grant Edwards]

On 2018-11-17, james <garftd@verizon.net> wrote:
> On 11/17/18 4:03 PM, Grant Edwards wrote:
>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>> On 11/17/18 12:17 PM, Grant Edwards wrote:
>>>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>>>
>>>>> It's time for the old man to get a new portable.
>>>>
>>>>> Arm processor,
>>>>
>>>> That's going to be tough.  The only ones I've ever heard of are
>>>> Chromebooks.
>>>
>>> Dell is on the move, but what I found (looking for old link now)
>>> had a mechanical HD with no SSD upgrade option; everthing else was fine.
>>>
>>> https://www.dell.com/en-us/shop/enabling-today-inspiring-tomorrow/ab/enabling-today-inspiring-tomorrow
>> 
>>>
>>> https://www.dell.com/en-us/shop/dell-laptops/inspiron-17-5000/spd/inspiron-17-5775-laptop/dncwlgamd7005h
>> 
>> Not an Arm processor.
>> 
>> Or do you mean AMD?
>
> Actually and AMD Arm (64bit) Ryzen or newer.

No, Ryzen is not an Arm processor.

The Ryzen's architecture is AMD64 (AKA x64, or x86-64).  It's the
old Intel IA32 architecture (which dates back to the 80386) extended to
be 64-bits wide.

Read the section on "Instruction set":

   https://en.wikipedia.org/wiki/Ryzen

If you want an Arm laptop, you pretty much have to by a Chromebook.

AMD did have the "Opteron A" processor which included an Arm
Cortex-A57 core, but that was aimed at the blade-server market, and I
think it was discontinued...

-- 
Grant

Re: [gentoo-user] Re: AMD lappy

[Mick]

[-- Attachment #1: Type: text/plain, Size: 1790 bytes --]

On Saturday, 17 November 2018 23:00:22 GMT Grant Edwards wrote:
> On 2018-11-17, james <garftd@verizon.net> wrote:
> > On 11/17/18 4:03 PM, Grant Edwards wrote:
> >> On 2018-11-17, james <garftd@verizon.net> wrote:
> >>> On 11/17/18 12:17 PM, Grant Edwards wrote:
> >>>> On 2018-11-17, james <garftd@verizon.net> wrote:
> >>>>> It's time for the old man to get a new portable.
> >>>>> 
> >>>>> Arm processor,
> >>>> 
> >>>> That's going to be tough.  The only ones I've ever heard of are
> >>>> Chromebooks.
> >>> 
> >>> Dell is on the move, but what I found (looking for old link now)
> >>> had a mechanical HD with no SSD upgrade option; everthing else was fine.
> >>> 
> >>> https://www.dell.com/en-us/shop/enabling-today-inspiring-tomorrow/ab/ena
> >>> bling-today-inspiring-tomorrow
> >>> 
> >>> 
> >>> https://www.dell.com/en-us/shop/dell-laptops/inspiron-17-5000/spd/inspir
> >>> on-17-5775-laptop/dncwlgamd7005h>> 
> >> Not an Arm processor.
> >> 
> >> Or do you mean AMD?
> > 
> > Actually and AMD Arm (64bit) Ryzen or newer.
> 
> No, Ryzen is not an Arm processor.
> 
> The Ryzen's architecture is AMD64 (AKA x64, or x86-64).  It's the
> old Intel IA32 architecture (which dates back to the 80386) extended to
> be 64-bits wide.
> 
> Read the section on "Instruction set":
> 
>    https://en.wikipedia.org/wiki/Ryzen
> 
> If you want an Arm laptop, you pretty much have to by a Chromebook.
> 
> AMD did have the "Opteron A" processor which included an Arm
> Cortex-A57 core, but that was aimed at the blade-server market, and I
> think it was discontinued...


Well, ... the PSP spy-in-the-die is an ARM core running within the main AMD 
x86 CPU and you can't switch it off, or remove it.  However, I'm sure this is 
not the kind of ARM James' been looking for.

-- 
Regards,
Mick

[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

[gentoo-user] Re: AMD lappy

[Grant Edwards]

On 2018-11-17, Mick <michaelkintzios@gmail.com> wrote:
> On Saturday, 17 November 2018 23:00:22 GMT Grant Edwards wrote:
>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>
>> > Actually and AMD Arm (64bit) Ryzen or newer.
>> 
>> No, Ryzen is not an Arm processor.

> Well, ... the PSP spy-in-the-die is an ARM core running within the
> main AMD x86 CPU and you can't switch it off, or remove it.

Right.  Unless AMD has screwed up royally, the ARM
security-processor-thingy is pretty much invisible to the end-user.

> However, I'm sure this is not the kind of ARM James' been looking
> for.

I assumed not.

I'd love to have an Arm based laptop, but getting full-up Linux
running reliably on a Chromebook is just a bit over my hassle budget.
I also want it to have a 16" 4:3 150dpi display, an RJ45 Ethernet
connector, and a real DB9 serial port.  I'll pass on the built in POTS
modem...

-- 
Grant

Re: [gentoo-user] Re: AMD lappy

[james]

On 11/17/18 6:51 PM, Grant Edwards wrote:
> On 2018-11-17, Mick <michaelkintzios@gmail.com> wrote:
>> On Saturday, 17 November 2018 23:00:22 GMT Grant Edwards wrote:
>>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>>
>>>> Actually and AMD Arm (64bit) Ryzen or newer.
>>>
>>> No, Ryzen is not an Arm processor.
> 
>> Well, ... the PSP spy-in-the-die is an ARM core running within the
>> main AMD x86 CPU and you can't switch it off, or remove it.
> 
> Right.  Unless AMD has screwed up royally, the ARM
> security-processor-thingy is pretty much invisible to the end-user.
> 
>> However, I'm sure this is not the kind of ARM James' been looking
>> for.
> 
> I assumed not.
> 
> I'd love to have an Arm based laptop, but getting full-up Linux
> running reliably on a Chromebook is just a bit over my hassle budget.
> I also want it to have a 16" 4:3 150dpi display, an RJ45 Ethernet
> connector, and a real DB9 serial port.  I'll pass on the built in POTS
> modem...
> 


I had not realized that AMD has completely given up on Arm  Systems.
Been off_grid a bit too much and working way to hard, for an old
eclectic.....

I'm looking for an arm64 system, with enough native power to compile 64
bit arm codes, natively. Here is the best I've found::

SynQuacer Dev Box

[1]  https://www.96boards.org/product/developerbox/

Purports to run gentoo (embedded?).
"�SC2A11� is a multi-core chip with 24 cores of ARM� Cortex-A53"

Not quite available (alpha) and a bit pricey at $1200.00. Like Grant I'm
looking for an arm 64 system that is straightforward on installing
gentoo, and has enough resources to perform most compiles, natively. Or
somebody has distcc running on four of those 4G DDR-4 boards.

Perhaps a gentoo cluster running on the latest R. PI ?

Perhaps Vapier has a hidden howto to put native gentoo on Chromebooks?

Perhaps "TomH" has some suggestions. I got one of those "hikey Armv8a"
boards from 2015, but cannot find his gentoo image he crafted and
published. I do not have time for another gentoo adventure, just want to
use it and sync it now and again and install ebuilds and write a few
ebuilds for some 64 bit arm boards.

My thoughts are to consolidate my efforts into one (arm64) arch, both on
the development lappy and the arm64  SBCs I have to code to and
maintain. Perhaps All winner? (Allwinner H6)?USB 3.0 is great for SSD
and offgrid applications.

[gentoo-user] Re: AMD lappy

[Grant Edwards]

On 2018-11-18, james <garftd@verizon.net> wrote:
> On 11/17/18 6:51 PM, Grant Edwards wrote:
>> On 2018-11-17, Mick <michaelkintzios@gmail.com> wrote:
>>> On Saturday, 17 November 2018 23:00:22 GMT Grant Edwards wrote:
>>>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>>>
>>>>> Actually and AMD Arm (64bit) Ryzen or newer.
>>>>
>>>> No, Ryzen is not an Arm processor.
>> 
>>> Well, ... the PSP spy-in-the-die is an ARM core running within the
>>> main AMD x86 CPU and you can't switch it off, or remove it.
>> 
>> Right.  Unless AMD has screwed up royally, the ARM
>> security-processor-thingy is pretty much invisible to the end-user.
>> 
>>> However, I'm sure this is not the kind of ARM James' been looking
>>> for.
>> 
>> I assumed not.
>> 
>> I'd love to have an Arm based laptop, but getting full-up Linux
>> running reliably on a Chromebook is just a bit over my hassle budget.
>> I also want it to have a 16" 4:3 150dpi display, an RJ45 Ethernet
>> connector, and a real DB9 serial port.  I'll pass on the built in POTS
>> modem...
>
> I had not realized that AMD has completely given up on Arm Systems.

It's hard to tell.  They still show the Opteron-A on their web site,
but Google couldn't find anything using it...

> I'm looking for an arm64 system, with enough native power to compile 64
> bit arm codes, natively. Here is the best I've found::
>
> SynQuacer Dev Box
>
> [1]  https://www.96boards.org/product/developerbox/
>
> Purports to run gentoo (embedded?).
> "�SC2A11� is a multi-core chip with 24 cores of ARM� Cortex-A53"
>
> Not quite available (alpha) and a bit pricey at $1200.00.

Ouch.

> Like Grant I'm looking for an arm 64 system that is straightforward
> on installing gentoo, and has enough resources to perform most
> compiles, natively. Or somebody has distcc running on four of those
> 4G DDR-4 boards.
>
> Perhaps a gentoo cluster running on the latest R. PI ?
>
> Perhaps Vapier has a hidden howto to put native gentoo on Chromebooks?

https://wiki.gentoo.org/wiki/Chromebook

It's definitly doable ( for certain models and some value of
"doable").  Everytime I look into it, the models for which "real"
Linux installations are documented are always out-of-production.

> Perhaps "TomH" has some suggestions. I got one of those "hikey Armv8a"
> boards from 2015, but cannot find his gentoo image he crafted and
> published. I do not have time for another gentoo adventure, just want to
> use it and sync it now and again and install ebuilds and write a few
> ebuilds for some 64 bit arm boards.

Cross development might be easier.  It's how a _lot_ of ARM Linux
targets are supported.  Even if the devlopment host and target are
both ARM64, unless they're _really_ identical (same kernel, distro,
and libraries), you still end up doing a good amount of "cross"
compiling.

> My thoughts are to consolidate my efforts into one (arm64) arch, both on
> the development lappy and the arm64  SBCs I have to code to and
> maintain. Perhaps All winner? (Allwinner H6)?USB 3.0 is great for SSD
> and offgrid applications.

-- 
Grant

Re: [gentoo-user] Re: AMD lappy

[james]

On 11/17/18 9:59 PM, Grant Edwards wrote:
> On 2018-11-18, james <garftd@verizon.net> wrote:
>> On 11/17/18 6:51 PM, Grant Edwards wrote:
>>> On 2018-11-17, Mick <michaelkintzios@gmail.com> wrote:
>>>> On Saturday, 17 November 2018 23:00:22 GMT Grant Edwards wrote:
>>>>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>>>>
>>>>>> Actually and AMD Arm (64bit) Ryzen or newer.
>>>>>
>>>>> No, Ryzen is not an Arm processor.
>>>
>>>> Well, ... the PSP spy-in-the-die is an ARM core running within the
>>>> main AMD x86 CPU and you can't switch it off, or remove it.
>>>
>>> Right.  Unless AMD has screwed up royally, the ARM
>>> security-processor-thingy is pretty much invisible to the end-user.
>>>
>>>> However, I'm sure this is not the kind of ARM James' been looking
>>>> for.
>>>
>>> I assumed not.
>>>
>>> I'd love to have an Arm based laptop, but getting full-up Linux
>>> running reliably on a Chromebook is just a bit over my hassle budget.
>>> I also want it to have a 16" 4:3 150dpi display, an RJ45 Ethernet
>>> connector, and a real DB9 serial port.  I'll pass on the built in POTS
>>> modem...
>>
>> I had not realized that AMD has completely given up on Arm Systems.
> 
> It's hard to tell.  They still show the Opteron-A on their web site,
> but Google couldn't find anything using it...
> 
>> I'm looking for an arm64 system, with enough native power to compile 64
>> bit arm codes, natively. Here is the best I've found::
>>
>> SynQuacer Dev Box
>>
>> [1]  https://www.96boards.org/product/developerbox/
>>
>> Purports to run gentoo (embedded?).
>> "�SC2A11� is a multi-core chip with 24 cores of ARM� Cortex-A53"
>>
>> Not quite available (alpha) and a bit pricey at $1200.00.
> 
> Ouch.
> 
>> Like Grant I'm looking for an arm 64 system that is straightforward
>> on installing gentoo, and has enough resources to perform most
>> compiles, natively. Or somebody has distcc running on four of those
>> 4G DDR-4 boards.
>>
>> Perhaps a gentoo cluster running on the latest R. PI ?
>>
>> Perhaps Vapier has a hidden howto to put native gentoo on Chromebooks?
> 
> https://wiki.gentoo.org/wiki/Chromebook
> 
> It's definitly doable ( for certain models and some value of
> "doable").  Everytime I look into it, the models for which "real"
> Linux installations are documented are always out-of-production.
> 
>> Perhaps "TomH" has some suggestions. I got one of those "hikey Armv8a"
>> boards from 2015, but cannot find his gentoo image he crafted and
>> published. I do not have time for another gentoo adventure, just want to
>> use it and sync it now and again and install ebuilds and write a few
>> ebuilds for some 64 bit arm boards.
> 
> Cross development might be easier.  It's how a _lot_ of ARM Linux
> targets are supported.  Even if the devlopment host and target are
> both ARM64, unless they're _really_ identical (same kernel, distro,
> and libraries), you still end up doing a good amount of "cross"
> compiling.
> 
>> My thoughts are to consolidate my efforts into one (arm64) arch, both on
>> the development lappy and the arm64  SBCs I have to code to and
>> maintain. Perhaps All winner? (Allwinner H6)?USB 3.0 is great for SSD
>> and offgrid applications.
> 


So, I'm going with a standard::


https://wiki.gentoo.org/wiki/Raspberry_Pi_3_64_bit_Install

I guess I'll try to cluster these guys, say four, into an old laptop
with a removed motherboard, and just cable the connections, to the
external sides of the old/large motherboard. It'll be interested to see
if I can get the 17.3 inch screen to work with this board. You'd think
that some  laptop case manufacturer would have already built a generic
laptop to house 4-8 of these R.pi.3B+ boards inside and prebuilt cables
to tether to glueable connectors on the outside of the case. I like the
Molex-screw-terminals myself, particularly for RS232 serial and A/D IO.
USB and HDMI out to be easy to extend.

And you thought those old (large) laptops were still useless....

Wish me luck. Drop a line if you find gentoo-clusterd  on these R.
Pi-3B+ SBC anywhere. Surely today's kids do that sort of thing between
classes?

It'd be great if we made this laptop to clusters (gentoo) Rpi a group
project... I might just look for a 'carrier-slot' hardware, where R.pi
can be inserted and removed kinda like the old pcmcia cards on lappies.

Thx Grant (&Mick),

James

Re: [gentoo-user] Re: AMD lappy

[james]

On 11/18/18 12:19 PM, james wrote:
> On 11/17/18 9:59 PM, Grant Edwards wrote:
>> On 2018-11-18, james <garftd@verizon.net> wrote:
>>> On 11/17/18 6:51 PM, Grant Edwards wrote:
>>>> On 2018-11-17, Mick <michaelkintzios@gmail.com> wrote:
>>>>> On Saturday, 17 November 2018 23:00:22 GMT Grant Edwards wrote:
>>>>>> On 2018-11-17, james <garftd@verizon.net> wrote:
>>>>>>
>>>>>>> Actually and AMD Arm (64bit) Ryzen or newer.
>>>>>>
>>>>>> No, Ryzen is not an Arm processor.
>>>>
>>>>> Well, ... the PSP spy-in-the-die is an ARM core running within the
>>>>> main AMD x86 CPU and you can't switch it off, or remove it.
>>>>
>>>> Right.  Unless AMD has screwed up royally, the ARM
>>>> security-processor-thingy is pretty much invisible to the end-user.
>>>>
>>>>> However, I'm sure this is not the kind of ARM James' been looking
>>>>> for.
>>>>
>>>> I assumed not.
>>>>
>>>> I'd love to have an Arm based laptop, but getting full-up Linux
>>>> running reliably on a Chromebook is just a bit over my hassle budget.
>>>> I also want it to have a 16" 4:3 150dpi display, an RJ45 Ethernet
>>>> connector, and a real DB9 serial port.  I'll pass on the built in POTS
>>>> modem...
>>>
>>> I had not realized that AMD has completely given up on Arm Systems.
>>
>> It's hard to tell.  They still show the Opteron-A on their web site,
>> but Google couldn't find anything using it...
>>
>>> I'm looking for an arm64 system, with enough native power to compile 64
>>> bit arm codes, natively. Here is the best I've found::
>>>
>>> SynQuacer Dev Box
>>>
>>> [1]  https://www.96boards.org/product/developerbox/
>>>
>>> Purports to run gentoo (embedded?).
>>> "�SC2A11� is a multi-core chip with 24 cores of ARM� Cortex-A53"
>>>
>>> Not quite available (alpha) and a bit pricey at $1200.00.
>>
>> Ouch.
>>
>>> Like Grant I'm looking for an arm 64 system that is straightforward
>>> on installing gentoo, and has enough resources to perform most
>>> compiles, natively. Or somebody has distcc running on four of those
>>> 4G DDR-4 boards.
>>>
>>> Perhaps a gentoo cluster running on the latest R. PI ?
>>>
>>> Perhaps Vapier has a hidden howto to put native gentoo on Chromebooks?
>>
>> https://wiki.gentoo.org/wiki/Chromebook
>>
>> It's definitly doable ( for certain models and some value of
>> "doable").  Everytime I look into it, the models for which "real"
>> Linux installations are documented are always out-of-production.
>>
>>> Perhaps "TomH" has some suggestions. I got one of those "hikey Armv8a"
>>> boards from 2015, but cannot find his gentoo image he crafted and
>>> published. I do not have time for another gentoo adventure, just want to
>>> use it and sync it now and again and install ebuilds and write a few
>>> ebuilds for some 64 bit arm boards.
>>
>> Cross development might be easier.  It's how a _lot_ of ARM Linux
>> targets are supported.  Even if the devlopment host and target are
>> both ARM64, unless they're _really_ identical (same kernel, distro,
>> and libraries), you still end up doing a good amount of "cross"
>> compiling.
>>
>>> My thoughts are to consolidate my efforts into one (arm64) arch, both on
>>> the development lappy and the arm64  SBCs I have to code to and
>>> maintain. Perhaps All winner? (Allwinner H6)?USB 3.0 is great for SSD
>>> and offgrid applications.
>>
> 
> 
> So, I'm going with a standard::
> 
> 
> https://wiki.gentoo.org/wiki/Raspberry_Pi_3_64_bit_Install
> 
> I guess I'll try to cluster these guys, say four, into an old laptop
> with a removed motherboard, and just cable the connections, to the
> external sides of the old/large motherboard. It'll be interested to see
> if I can get the 17.3 inch screen to work with this board. You'd think
> that some  laptop case manufacturer would have already built a generic
> laptop to house 4-8 of these R.pi.3B+ boards inside and prebuilt cables
> to tether to glueable connectors on the outside of the case. I like the
> Molex-screw-terminals myself, particularly for RS232 serial and A/D IO.
> USB and HDMI out to be easy to extend.
> 
> And you thought those old (large) laptops were still useless....
> 
> Wish me luck. Drop a line if you find gentoo-clusterd  on these R.
> Pi-3B+ SBC anywhere. Surely today's kids do that sort of thing between
> classes?
> 
> It'd be great if we made this laptop to clusters (gentoo) Rpi a group
> project... I might just look for a 'carrier-slot' hardware, where R.pi
> can be inserted and removed kinda like the old pcmcia cards on lappies.
> 
> Thx Grant (&Mick),
> 
> James

Found a RPiB3+ lappy kit::


https://www.techrepublic.com/article/pi-top-review-a-raspberry-pi-laptop-for-tinkering-on-the-go/

Now just add a carrier board for (4-8) RPiB3+ and cluster them together.
Several web sites indicate that distcc can be use to compile native code
for these Broadcom based arm64 systems::

from ::
https://wiki.gentoo.org/wiki/Raspberry_Pi#WiFi

"The project's GitHub page additionally contains instructions for
setting up crossdev and distcc to build for the 64-bit RPi3. "