Question on ARM Cortex R4 support in Linux

[armando.visconti@st.com (Armando Visconti)]

Ciao Catalin,

Thx for the answer.

On 02/20/2012 11:01 AM, Catalin Marinas wrote:
> On Mon, Feb 20, 2012 at 09:52:55AM +0000, Armando Visconti wrote:
>>>>>> Has anybody used it on Cortex R4 based platform ?
>>>>>
>>>>> In theory Linux support for R4 should just work (once CONFIG_MMU is
>>>>> disabled). I used to test it in the past regularly but not recently.
>>>>
>>>> Great. I was planning to use linux-3.2, I hope the support is there ?
>>>
>>> It's been there for years, but some bit-rotting may have occurred.
>>
>> I'm assuming you have tried it on a FPGA solution, is that correct?
>
> It may have been a real silicon (core tile for a RealView EB board), I
> don't remember the details.
>

OK, I see.


>> We are planning to buy a Cortex-R4 board from ARM.
>> Lionel Belnet suggested to buy Versatile + a CoreTile with Cortex-R4F
>> r1p2 Test Chip on it.
>>
>> Is there any Linux/ucLinux support already offered for this solution?
>
> On www.arm.com/linux there is a uClinux tab with images for download,
> though the kernel is 2.6.35. Anyway, you can always get a newer kernel
> and just disable CONFIG_MMU for a RealView/EB board with ARMv6
> processor.
>

So, you are suggesting that we can got for a RealView + CoreTile with
Cortex-R4F testchip instead of versatile?

Why ARMv6?
Maybe you meant ARMv7?

Thx,
Arm


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