linux-kernel - RE: Old platforms: bring out your dead

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Date:   Fri, 15 Jan 2021 08:59:18 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'William Breathitt Gray' <vilhelm.gray@...il.com>,
        Bernd Petrovitsch <bernd@...rovitsch.priv.at>
CC:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Arnd Bergmann <arnd@...nel.org>, Willy Tarreau <w@....eu>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        Krzysztof Adamski <krzysztof.adamski@...ia.com>,
        Oleksij Rempel <o.rempel@...gutronix.de>,
        Baruch Siach <baruch@...s.co.il>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Daniel Tang <dt.tangr@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        "Jamie Iles" <jamie@...ieiles.com>,
        Barry Song <song.bao.hua@...ilicon.com>,
        "Viresh Kumar" <viresh.kumar@...aro.org>,
        Jonas Jensen <jonas.jensen@...il.com>,
        Marc Gonzalez <marc.w.gonzalez@...e.fr>,
        Hartley Sweeten <hsweeten@...ionengravers.com>,
        Lubomir Rintel <lkundrak@...sk>,
        "Neil Armstrong" <narmstrong@...libre.com>,
        Shawn Guo <shawnguo@...nel.org>,
        "Alex Elder" <elder@...aro.org>,
        Alexander Shiyan <shc_work@...l.ru>,
        "Koen Vandeputte" <koen.vandeputte@...ntric.com>,
        Hans Ulli Kroll <ulli.kroll@...glemail.com>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Wei Xu <xuwei5@...ilicon.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Yoshinori Sato <ysato@...rs.osdn.me>,
        Mark Salter <msalter@...hat.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        "Thomas Bogendoerfer" <tsbogend@...ha.franken.de>
Subject: RE: Old platforms: bring out your dead

From: William Breathitt Gray
> Sent: 15 January 2021 00:24
...
> That's part of the Bay Trail generation isn't it? Are those processors
> still manufactured? My worry is that although there are boards still in
> production, they might be simply using up an old stock of parts. The
> question becomes whether these will still be produced in the near
> future, or whether the companies are just using up the rest of their
> supply.

The 'stock of parts' might go back as far as etched wafers that
haven't been cut up....
Even then it may take a moderate demand to get them processed.

We're have to redesign a board to use a completely different
part because the one we were using has gone end-of-life.

Hopefully the replacement will be made for a while.
The datasheet for that part is 12 years old.

The designs for both are probably over 20 years old.
The TDM E1/T1 interface is about 50.
But it is still used.

	David

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