Re: [RFC} arm architecture board/feature deprecation timeline
- To: Arnd Bergmann <arnd@arndb.de>, linux-arm-kernel@lists.infradead.org
- Cc: linux-kernel@vger.kernel.org, Russell King <linux@armlinux.org.uk>, Linus Walleij <linus.walleij@linaro.org>, Richard Earnshaw <richard.earnshaw@arm.com>, Richard Sandiford <richard.sandiford@arm.com>, Ramana Radhakrishnan <ramanara@nvidia.com>, Nicolas Pitre <nico@fluxnic.net>, Mark Brown <broonie@kernel.org>, Kristoffer Ericson <kristoffer.ericson@gmail.com>, Robert Jarzmik <robert.jarzmik@free.fr>, Aaro Koskinen <aaro.koskinen@iki.fi>, Janusz Krzysztofik <jmkrzyszt@gmail.com>, Tony Lindgren <tony@atomide.com>, linux-omap@vger.kernel.org, Nikita Shubin <nikita.shubin@maquefel.me>, linux-samsung-soc@vger.kernel.org, Andrew Lunn <andrew@lunn.ch>, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>, Gregory Clement <gregory.clement@bootlin.com>, "Jeremy J. Peper" <jeremy@jeremypeper.com>, debian-arm@lists.debian.org, Dmitry Torokhov <dmitry.torokhov@gmail.com>, Alexandre Torgue <alexandre.torgue@foss.st.com>
- Subject: Re: [RFC} arm architecture board/feature deprecation timeline
- From: Krzysztof Kozlowski <krzk@kernel.org>
- Date: Thu, 1 Aug 2024 10:04:06 +0200
- Message-id: <[🔎] f5e8b8ca-33c7-4725-b751-fc9d76959423@kernel.org>
- In-reply-to: <2831c5a6-cfbf-4fe0-b51c-0396e5b0aeb7@app.fastmail.com>
- References: <2831c5a6-cfbf-4fe0-b51c-0396e5b0aeb7@app.fastmail.com>
On 31/07/2024 19:29, Arnd Bergmann wrote:
> We removed a lot of the unused board files at the beginning of
> 2023, and I'd like to plan ahead for other hardware and feature
> support that can be removed after the next stable kernel
> (linux-6.12).
>
> TL;DR: I think we can deprecate toolchain support for ARMv4
> (pre-thumb), iWMMXt, BE32 and OABI (-mabi=apcs-gnu) *if* that
> helps gcc-15, as we'll likely not need those any more after
> gcc-14 will be too old to build new kernels (ca. 2030).
>
> I hope we can keep reducing the number of non-DT board files a
> lot further, but I still expect this to take several more years
> before it is DT-only. Please reply here if you are using any
> of them so we can spare them once more.
All this (and what was below the quote) looks reasonable to me,
including Samsung S3C64xx and keeping support for RPi 1 (I was using it
till ~3 years ago).
Best regards,
Krzysztof
Reply to: