Re: [RESEND in plain-test] Re: [PATCH v5 0/9] Add initial support for the i.MXRTxxxx SoC family starting from i.IMXRT1050 SoC.

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On Fri, Dec 17, 2021 at 10:54 AM Giulio Benetti
<giulio.benetti@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> On 16/12/21 22:13, Arnd Bergmann wrote:
>
> > Vladimir has put some work into making Cortex-R work in the kernel, and
> > he may have some other thoughts on this question.
>
> I'm curious if he has something specific to Cortex-R to tell.
>
> I've found that Cortex-R82 has a MMU:
> https://www.arm.com/products/silicon-ip-cpu/cortex-r/cortex-r82
> but I can't find any SoC that uses it. Also, I don't know how many
> people could use it honestly.

R82 is fairly new, but I expect that we will see support in Linux in the
future. Aside from having an MMU, it also 64-bit-only, so we'd treat
it like a normal ARMv8-A core in arch/arm64.

        Arnd



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