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From:   Arnd Bergmann <arnd@arndb.de>
Date:   Tue, 12 Oct 2021 16:39:56 +0200
Message-ID: <CAK8P3a1EcNuxT-w-8w-HDr2+idsP=vFZ3Cn27fX7o56GOuu_Cg@mail.gmail.com>
Subject: Re: linux-next: build warnings in Linus' tree
To:     Rob Herring <robh+dt@kernel.org>
Cc:     Stephen Rothwell <sfr@canb.auug.org.au>,
        Arnd Bergmann <arnd@arndb.de>,
        Michael Ellerman <mpe@ellerman.id.au>,
        PowerPC <linuxppc-dev@lists.ozlabs.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>,
        Anatolij Gustschin <agust@denx.de>
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On Mon, Oct 11, 2021 at 10:42 PM Rob Herring <robh+dt@kernel.org> wrote:
> On Sun, Oct 10, 2021 at 4:27 PM Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> FYI, u-boot removed mpc5xxx support in 2017, so maybe there's
> similarly not a need to keep them in the kernel? It does appear NXP
> will still sell you the parts though the last BSP was 2009.

Specifically, MPC5200B has a 15 year lifetime, which ends in
11 months from now. The original bplan/Genesi Efika 5K2 was
quite popular at the time it came out, and there are probably
still some of those hanging around, but they came with Open
Firmware rather than relying on the dts files that ship with the
kernel.

Grant Likely was the original maintainer for MPC52xx until 2011,
Anatolij Gustschin is still listed as maintainer since then but hasn't
been active in it for a while either. Anatolij can probably best judge
which of these boards are still in going to be used with future kernels,
but I suspect once you start removing bits from 52xx, the newer
but less common 512x platform can go away as well.

         Arnd