Minor MIPS tree pruning

[Brooks Davis]

On Fri, Jan 05, 2018 at 03:59:09PM -0700, Warner Losh wrote:
> On Fri, Jan 5, 2018 at 3:51 PM, Brooks Davis <brooks at freebsd.org> wrote:
> 
> > On Sat, Dec 30, 2017 at 11:44:20AM -0500, Alexander Kabaev wrote:
> > > On Sat, 30 Dec 2017 01:10:11 -0700
> > > Warner Losh <imp at bsdimp.com> wrote:
> > >
> > > > I'd like to propose that we eliminate support for the following
> > > > before the FreeBSD 12 branch.
> > > >
> > > > adm5120 (most boards don't have enough memory, very old)
> > > > alchemy (the au1xxxx port never really was finished, and boards lack
> > > > memory, very old)
> > > > idt (only a few boards worked, most are long obsolete)
> > > > rt305x (raylink kit is now out dated, at least I think so)
> > > > sibyte (long obsolete, hard to get hardware)
> > > >
> > > > I thought I'd post a heads up here before I proposed this list to
> > > > arch at .
> > > >
> > > > We have enough exemplars these days we don't need to keep these older
> > > > ports around as examples anymore, and I have my doubts if we even
> > > > work on these boards anymore.
> > > >
> > > > If I'm wrong about these being old, or that FreeBSD is no longer
> > > > running on them, please let me know. Thanks!
> > >
> > > RMI is another one that should get on chopping block, IMHO. They are
> > > impossible to track down in the wild and files were not touched more or
> > > less ever since being committed. They also re-implement too much of the
> > > code in MI and chances of FreeBSD-current working on the hardware are
> > > very, very slim.
> >
> > Deleting that would clean up a fair number of ifdefs in MIPS MD code.
> 
> 
> I went ahead and deleted the platform, but was holding off doing ifdef
> cleanups from the removed platforms until a suitable period of time had
> passed to ensure that I didn't delete one that turns out to be in wide use
> leading to a hue and cry for its return.

Sounds good.

-- Brooks
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