Re: Old platforms: bring out your dead

On Mon, Jan 11, 2021 at 8:58 PM Thomas Petazzoni
[off-list ref] wrote:

quoted

On Fri, 8 Jan 2021 23:55:06 +0100 Arnd Bergmann [off-list ref] wrote:

So overall, I'd say that yes we could probably drop arch/arm/mach-dove/.

Russell mentioned that he still uses a cubox with an out-of-tree
board file for dove.

quoted

* spear -- added in 2010, no notable changes since 2015

Well, I did quite a few improvements in spear DTs in 2017, some
improvements to the NAND FSMC driver for Spear, and my colleague Miquèl
Raynal fixed an issue in the Spear NOR driver in 2019.

We have one customer running a 4.14 upstream kernel on a Spear600
product, and this was a fairly "recent" port, in the sense that the
product was originally running WinCE, and we ported Linux to it many
years later after the product was first shipped.

Ok, thanks for the list, very helpful. Sorry I missed your DT changes
when I went through the logs there.
Viresh already pointed out Schneider Electric as a user of multiple
SPEAr SoCs.

quoted

* lpc32xx -- added in 2010, multiplatform 2019, hardware is EOL

As late as early 2020, we were finishing the migration of one of our
customer LPC32xx platform to a recent mainline kernel.

So in fact for us at Bootlin, it happens pretty regularly to see users
of "legacy" platforms having a need for an updated kernel. From the
above, you can see that even legacy SoCs such as Spear600 and LPC32xx
are still used in products were kernel are being updated.

I had put the lpc32xx in the list of code that is still updated and
should not get removed unless the maintainers think it is near
its end of useful life (which I did not really expect in this case).

        Arnd

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