On Wed, Dec 4, 2024, at 19:55, Andy Shevchenko wrote:
> +Cc: Ferry
>
> On Wed, Dec 4, 2024 at 12:31 PM Arnd Bergmann <arnd@xxxxxxxxxx> wrote:
>>
>> From: Arnd Bergmann <arnd@xxxxxxxx>
>>
>> The X86_INTEL_MID code was originally introduced for the
>> 32-bit Moorestown/Medfield/Clovertrail platform, later the 64-bit
>> Merrifield/Moorefield variant got added, but the final
>
> variant got --> variants were
Fixed
>> Morganfield/Broxton 14nm chips were canceled before they hit
>> the market.
>
> Inaccurate. "Broxton for Mobile", and not "Broxton" in general.
Changed to "but the final Morganfield 14nm platform was canceled
before it hit the market"
>> To help users understand what the option actually refers to,
>> update the help text, and make it a hard dependency on 64-bit
>> kernels. While they could theoretically run a 32-bit kernel,
>> the devices originally shipped with 64-bit one in 2015, so that
>> was proabably never tested.
>
> probably
Fixed.
> It's all other way around (from SW point of view). For unknown reasons
> Intel decided to release only 32-bit SW and it became the only thing
> that was heavily tested (despite misunderstanding by some developers
> that pointed finger to the HW without researching the issue that
> appears to be purely software in a few cases) _that_ time. Starting
> ca. 2017 I enabled 64-bit for Merrifield and from then it's being used
> by both 32- and 64-bit builds.
>
> I'm totally fine to drop 32-bit defaults for Merrifield/Moorefield,
> but let's hear Ferry who might/may still have a use case for that.
Ok. I tried to find the oldest Android image and saw it used a 64-bit
kernel, but that must have been after your work then.
>
>> - Moorestown MID devices
>
> FTR, a year or so ago it was a (weak) interest to revive Medfield, but
> I think it would require too much work even for the person who is
> quite familiar with HW, U-Boot, and Linux kernel, so it is most
> unlikely to happen.
Ok.
>> +
>> + The only supported devices are the 22nm Merrified (Z34xx) and
>> + Moorefield (Z35xx) SoC used in Android devices such as the
>> + Asus Zenfone 2, Asus FonePad 8 and Dell Venue 7.
>
> The list is missing the Intel Edison DIY platform which is probably
> the main user of Intel MID kernels nowadays.
Ah, that explains a lot ;-)
Changed now to
The only supported devices are the 22nm Merrified (Z34xx) and
Moorefield (Z35xx) SoC used in the Intel Edison board and
a small number of Android devices such as the Asus Zenfone 2,
Asus FonePad 8 and Dell Venue 7.
> ...
>
>> - Intel MID platforms are based on an Intel processor and chipset which
>> - consume less power than most of the x86 derivatives.
>
> Why remove this? AFAIK it states the truth.
It seemed irrelevant for users that configure the kernel. I've
put it back now.
Thanks for the review!
Arnd
