LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Arnd Bergmann <arnd@kernel.org>
To: Daniel Palmer <daniel@0x0f.com>
Cc: "Linux ARM" <linux-arm-kernel@lists.infradead.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Krzysztof Adamski" <krzysztof.adamski@nokia.com>,
	"Oleksij Rempel" <o.rempel@pengutronix.de>,
	"Baruch Siach" <baruch@tkos.co.il>,
	"Russell King - ARM Linux" <linux@armlinux.org.uk>,
	"Daniel Tang" <dt.tangr@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Jamie Iles" <jamie@jamieiles.com>,
	"Barry Song" <song.bao.hua@hisilicon.com>,
	"Viresh Kumar" <viresh.kumar@linaro.org>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Jonas Jensen" <jonas.jensen@gmail.com>,
	"Marc Gonzalez" <marc.w.gonzalez@free.fr>,
	"Hartley Sweeten" <hsweeten@visionengravers.com>,
	"Lubomir Rintel" <lkundrak@v3.sk>,
	"Neil Armstrong" <narmstrong@baylibre.com>,
	"Shawn Guo" <shawnguo@kernel.org>,
	"Alex Elder" <elder@linaro.org>,
	"Alexander Shiyan" <shc_work@mail.ru>,
	"Koen Vandeputte" <koen.vandeputte@ncentric.com>,
	"Hans Ulli Kroll" <ulli.kroll@googlemail.com>,
	"Vladimir Zapolskiy" <vz@mleia.com>,
	"Wei Xu" <xuwei5@hisilicon.com>,
	"Steven Rostedt" <rostedt@goodmis.org>,
	"Yoshinori Sato" <ysato@users.sourceforge.jp>,
	"Mark Salter" <msalter@redhat.com>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Geert Uytterhoeven" <geert+renesas@glider.be>,
	"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>
Subject: Re: Old platforms: bring out your dead
Date: Mon, 11 Jan 2021 11:13:53 +0100
Message-ID: <CAK8P3a1N5dEWQfH+bKKPPag0Buyj2FUN4oGd_u=iQAGWg-6XxA@mail.gmail.com> (raw)
In-Reply-To: <CAFr9PX=BV1YFcO_GQWsW3XEo8nndjUwArzW5Fg1fnWzt8fiwGw@mail.gmail.com>

On Mon, Jan 11, 2021 at 2:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
>
> Hi Arnd,
>
> On Sat, 9 Jan 2021 at 07:56, Arnd Bergmann <arnd@kernel.org> wrote:
> > * 68000/68328 (Dragonball): these are less capable than the
> >   68020+ or the Coldfire MCF5xxx line and similar to the 68360
> >   that was removed in 2016.
>
> I have some patches for the DragonBall series to enable SPI etc there,
> some patches to support the SuperVZ variant, some tools to upload
> Linux via the integrated serial bootloader.

Ah, good to know. Note that I recently did some cleanups for dragonball,
which were Greg merged into 5.10, but I don't think that he or anyone
else tested them on real hardware.

> The DragonBall is probably what anyone that wants to build a 68K retro
> computer should use as the DRAM controller is integrated and it can
> access 32MB of SDRAM.

I generally wouldn't recommend MMU-less hardware for new projects
any more, when your primary goal is to run the latest Linux kernel.

As recently as 2017, there was a lot of work going into a bunch of
platforms (J2, STM32, SAMV7, pre-v4e Coldfire, ...) in both user space
and kernel, but that seems have significantly slowed down in the
past years (K210 being the notable exception). The fewer users there
are on other NOMMU targets, the harder I expect it to get for the
remaining ones to keep it from breaking.

Of course, for a retro computer, that may not be relevant. If you
just want to run Vintage operating systems (including older
Linux kernels) and you just do it for fun, then this sounds like a
good choice.

> I haven't tested it recently but it should still work and I have
> hardware and I'm willing to look after it if no one else wants to.

For the purpose of documenting the current state, it would be
great if you could just do a minimal test on linux-5.10 to see if
anything broke since you last ran it.

       Arnd

  parent reply index

Thread overview: 121+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-08 22:55 Arnd Bergmann
2021-01-08 23:32 ` Steven Rostedt
2021-01-09 22:04   ` Arnd Bergmann
2021-01-08 23:44 ` Thomas Bogendoerfer
2021-01-09  0:16 ` Linus Walleij
2021-01-09 17:32   ` Florian Fainelli
2021-01-09 21:59   ` Arnd Bergmann
2021-01-09  5:56 ` Willy Tarreau
2021-01-09 21:52   ` Arnd Bergmann
2021-01-10  6:21     ` Willy Tarreau
2021-01-10 10:44       ` Russell King - ARM Linux admin
2021-01-11  9:50     ` David Laight
2021-01-13 10:27       ` Andy Shevchenko
2021-01-13 12:02         ` Linus Walleij
2021-01-13 12:17           ` Andy Shevchenko
2021-01-13 12:21             ` Andy Shevchenko
2021-01-15  0:03               ` Bernd Petrovitsch
2021-01-15  0:24                 ` William Breathitt Gray
2021-01-15  8:59                   ` David Laight
2021-01-13 12:30           ` William Breathitt Gray
2021-01-13 12:56             ` William Breathitt Gray
2021-01-13 13:44           ` Arnd Bergmann
2021-02-04 21:01         ` Pavel Machek
2021-02-05  9:13           ` David Laight
2021-02-05  9:29             ` Pavel Machek
2021-01-09 17:34 ` Florian Fainelli
2021-01-09 21:18   ` Arnd Bergmann
2021-01-09 17:43 ` Russell King - ARM Linux admin
2021-01-09 21:34   ` Arnd Bergmann
2021-01-11 20:09     ` Russell King - ARM Linux admin
2021-01-09 20:19 ` Baruch Siach
2021-01-09 21:19   ` Arnd Bergmann
     [not found] ` <67171E13-6786-4B44-A8C2-3302963B055F@gmail.com>
2021-01-09 22:20   ` Arnd Bergmann
2021-01-10 18:12     ` Fabian Vogt
2021-01-10 19:20       ` Arnd Bergmann
2021-01-10 21:33       ` Linus Walleij
2021-01-11  0:33         ` Russell King - ARM Linux admin
2021-01-11 12:32           ` Arnd Bergmann
2021-01-11 12:36             ` Russell King - ARM Linux admin
2021-01-09 23:12 ` Andrew Lunn
2021-01-10  8:45   ` Arnd Bergmann
2021-01-10 16:46     ` Andrew Lunn
2021-01-10 17:27       ` Arnd Bergmann
2021-01-10 19:51         ` Andrew Lunn
2021-01-10 15:51 ` Neil Armstrong
2021-01-10 15:56   ` Arnd Bergmann
2021-01-10 17:35 ` John Paul Adrian Glaubitz
2021-01-10 21:46   ` Sam Ravnborg
2021-01-11  8:05     ` John Paul Adrian Glaubitz
2021-01-11 14:55       ` chase rayfield
2021-01-12  0:26         ` Rob Landley
2021-01-12  0:50           ` chase rayfield
2021-01-12 14:37         ` John Paul Adrian Glaubitz
2021-01-11 18:09     ` Rob Landley
2021-01-11 15:04   ` Gerhard Pircher
2021-01-12 14:44     ` John Paul Adrian Glaubitz
2021-01-12 22:46       ` Linus Walleij
2021-01-13  8:09         ` Rob Landley
2021-01-13  8:21           ` Geert Uytterhoeven
2021-01-13 13:25             ` Rob Landley
2021-01-13 12:02           ` Andy Shevchenko
2021-01-13  8:15         ` Geert Uytterhoeven
2021-01-13 10:39         ` Arnd Bergmann
2021-01-14  3:54           ` New platforms: bring out your dead, was " Finn Thain
2021-01-14  9:41         ` John Paul Adrian Glaubitz
2021-01-14  9:48           ` Geert Uytterhoeven
2021-01-14 21:21           ` Arnd Bergmann
2021-01-14 22:54             ` Undesirable code, was Re: Old platforms etc Finn Thain
2021-01-14 23:09             ` Old platforms: bring out your dead Max Filippov
2021-01-15  8:31               ` Arnd Bergmann
2021-01-13  0:12       ` Old platforms never die, was " Finn Thain
2021-01-16  6:54         ` Rob Landley
2021-01-16 23:22           ` Finn Thain
2021-01-13 11:47       ` Andy Shevchenko
2021-01-11  1:39 ` Daniel Palmer
2021-01-11  9:15   ` John Paul Adrian Glaubitz
2021-01-11  9:20     ` Geert Uytterhoeven
2021-01-11  9:26       ` John Paul Adrian Glaubitz
2021-01-11  9:36         ` Geert Uytterhoeven
2021-01-11  9:50           ` Greg Ungerer
2021-01-11  9:42     ` Daniel Palmer
2021-01-11 10:13   ` Arnd Bergmann [this message]
2021-01-11  8:19 ` Geert Uytterhoeven
2021-01-11  8:59   ` Arnd Bergmann
2021-01-11  9:16     ` Geert Uytterhoeven
2021-01-11 10:28       ` Geert Uytterhoeven
2021-01-11 10:37         ` Arnd Bergmann
2021-01-11  9:40     ` Thomas Bogendoerfer
2021-01-11 10:34       ` Arnd Bergmann
2021-01-11  8:40 ` efm32 is dead [Was: Old platforms: bring out your dead] Uwe Kleine-König
2021-01-11 11:10 ` Old platforms: bring out your dead Viresh Kumar
2021-01-11 19:59   ` Arnd Bergmann
2021-01-11 21:15     ` Mattias Wallin
2021-01-11 21:47       ` Arnd Bergmann
2021-01-11 13:13 ` Marc Gonzalez
2021-01-11 17:29   ` Måns Rullgård
2021-01-11 21:50     ` Arnd Bergmann
2021-01-12  8:23       ` Marc Gonzalez
2021-01-11 14:22 ` Mark Salter
2021-01-11 15:00   ` Arnd Bergmann
2021-01-11 14:44 ` Alexander Shiyan
2021-01-11 14:58   ` Arnd Bergmann
2021-01-11 16:23 ` Sylvain Lemieux
2021-01-11 22:17   ` Alexandre Belloni
2021-01-11 19:58 ` Thomas Petazzoni
2021-01-11 20:10   ` Arnd Bergmann
2021-01-11 20:25 ` Song Bao Hua (Barry Song)
2021-01-12  8:41   ` Marc Gonzalez
2021-01-13 10:30 ` Andy Shevchenko
2021-01-13 11:02   ` Arnd Bergmann
2021-01-13 16:14 ` [v2] " Arnd Bergmann
2021-01-13 19:00   ` Krzysztof Hałasa
2021-01-14  8:51     ` Arnd Bergmann
2021-01-15  7:08   ` Wei Xu
2021-01-15  9:26     ` Arnd Bergmann
2021-01-15 11:09       ` Leizhen (ThunderTown)
2021-01-15 12:04         ` Arnd Bergmann
2021-01-18 10:46           ` Wei Xu
2021-01-13 22:27 ` Richard Z
2021-02-05 13:37 ` Alexander Lobakin
2021-01-12  2:05 tedheadster

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAK8P3a1N5dEWQfH+bKKPPag0Buyj2FUN4oGd_u=iQAGWg-6XxA@mail.gmail.com' \
    --to=arnd@kernel.org \
    --cc=baruch@tkos.co.il \
    --cc=daniel@0x0f.com \
    --cc=dt.tangr@gmail.com \
    --cc=elder@linaro.org \
    --cc=geert+renesas@glider.be \
    --cc=hsweeten@visionengravers.com \
    --cc=jamie@jamieiles.com \
    --cc=jonas.jensen@gmail.com \
    --cc=koen.vandeputte@ncentric.com \
    --cc=krzysztof.adamski@nokia.com \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@armlinux.org.uk \
    --cc=lkundrak@v3.sk \
    --cc=marc.w.gonzalez@free.fr \
    --cc=mpe@ellerman.id.au \
    --cc=msalter@redhat.com \
    --cc=narmstrong@baylibre.com \
    --cc=o.rempel@pengutronix.de \
    --cc=rostedt@goodmis.org \
    --cc=shawnguo@kernel.org \
    --cc=shc_work@mail.ru \
    --cc=song.bao.hua@hisilicon.com \
    --cc=tsbogend@alpha.franken.de \
    --cc=u.kleine-koenig@pengutronix.de \
    --cc=ulli.kroll@googlemail.com \
    --cc=viresh.kumar@linaro.org \
    --cc=vz@mleia.com \
    --cc=xuwei5@hisilicon.com \
    --cc=ysato@users.sourceforge.jp \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git
	git clone --mirror https://lore.kernel.org/lkml/10 lkml/git/10.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git