linux-kernel - Re: [PATCH 03/15] ARM: rework ARM11 CPU selection logic

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Message-Id: <7ff7afbe-938f-4eb3-b970-331a177c7348@app.fastmail.com>
Date: Wed, 04 Dec 2024 21:26:50 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Linus Walleij" <linus.walleij@...aro.org>,
 "Arnd Bergmann" <arnd@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 "Aaro Koskinen" <aaro.koskinen@....fi>, "Andrew Lunn" <andrew@...n.ch>,
 "Ard Biesheuvel" <ardb@...nel.org>, "Daniel Mack" <daniel@...que.org>,
 "Gregory Clement" <gregory.clement@...tlin.com>,
 "Haojian Zhuang" <haojian.zhuang@...il.com>,
 "Jeremy J. Peper" <jeremy@...emypeper.com>,
 "Kristoffer Ericson" <kristoffer.ericson@...il.com>,
 "Krzysztof Kozlowski" <krzk@...nel.org>, "Mark Brown" <broonie@...nel.org>,
 "Ralph Siemsen" <ralph.siemsen@...aro.org>,
 "Robert Jarzmik" <robert.jarzmik@...e.fr>,
 "Russell King" <linux@...linux.org.uk>,
 "Sebastian Hesselbarth" <sebastian.hesselbarth@...il.com>,
 "Tony Lindgren" <tony@...mide.com>
Subject: Re: [PATCH 03/15] ARM: rework ARM11 CPU selection logic

On Wed, Dec 4, 2024, at 15:02, Linus Walleij wrote:
> On Wed, Dec 4, 2024 at 11:29 AM Arnd Bergmann <arnd@...nel.org> wrote:
>>
>>  - Eukrea CPUIMX35 reference platform
>>  - Freescale/NXP i.MX35 Product Development Kit
>>  - ARM Integrator/CP/IM-LT3 with ARM1136J Core Tile
>
> I can't test that, I doubt anyone can. I think this support can
> be simply deleted unless there is some QEMU support or
> so.
>
>>  - ARM Realview/EB with ARM1136J Core Tile
>
> I will check if I have this one, otherwise this can probably go
> as well.

To clarify, these two do not add any maintenance burden.
Yes, we can probably remove them, but we can also just
keep them around for as long as i.MX35 is supported. Once
we drop i.MX35 it makes sense to leave only the ARM1176
CPUs supported in ARMv6K and reduce the possible feature
set.

       Arnd