I am not a big fan of IBM but I have to say that because they defined the PC
bios and interrupt structure,
we all owe them a debt of gratitude for the continued degree of compatibility
on the X86 machines.
I thought that there was already a stable rt-preempt kernel for 4.9 LTS and
4.14 LTS and they were approaching stable on the 4.19 LTS rt-preempt kernel.
However, I now realize that I was looking at the GitHub for rt-preempt generic.
It looks like there maybe something approaching stable for 4.9 LTS for Pine64.
I am not sure of the relationship between the Pine64 and RockPro64. Pine64+
uses an Allwinner cpu, while the RockPro64 uses RK3399 which is Armv8.
I have built kernels in the past but am not an expert.
Alan
> Message: 4
> Date: Fri, 8 Mar 2019 08:56:46 -0800 (PST)
> From: "Peter C. Wallace"
> To: EMC developers
> Subject: Re: [Emc-developers] Arm with PCIe -- mesa 6i25
> Message-ID:
> Content-Type: TEXT/PLAIN; charset=X-UNKNOWN; format=flowed
>
> On Fri, 8 Mar 2019, Alan Condit wrote:
>
>> Date: Fri, 8 Mar 2019 08:34:39 -0800
>> From: Alan Condit
>> Reply-To: EMC developers
>> To: emc-developers
>> Subject: [Emc-developers] Arm with PCIe -- mesa 6i25
>>
>> I am looking at processors for my next controller. I saw yesterday that the
>> RockPro64 has a PCIe 4x connector. It has a six core RK3399 - dual core A72
>> - quad core Arm53. At the moment that doesn??t mean much to me.
>
>> Anyway my question is would it be feasible to use the RockPro64 with a 6i25
>> board and if, yes, what would be required to use a 6i25 with that processor,
>> i.e., is it just recompiling some ??C?? code or is there a bunch of assembly
>> code that would have to be rewritten.
>>
>> Thanks,
>> Alan
>
>
> I suspect any changes (if needed) would be pretty minor, but a bigger
> question
> is can you get or build a reliable real time kernel for the RockPro. One
> issue
> with the ARM boards is that each one is different enough that its often an
> 'adventure' to do things that are trivial on x86 because of per ARM board
> idiosyncrasies.
>
> Peter Wallace
> Mesa Electronics
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