ath79: move 8/32 boards to tiny subtarget

[Sven Roederer]

Am Samstag, 3. Oktober 2020, 19:16:51 CEST schrieb Paul Oranje:
> > Op 21 sep. 2020, om 20:42 heeft Sven Roederer <devel-sven at geroedel.de> het
> > volgende geschreven:
> > 
> > Fernando,
> > 
> > I'm only talking on the boards having 32MB RAM. This includes 4MB / 8MB
> > flash boards.
> > I'm not having the 8/64 boards in mind. They are fine and should work for
> > some furture releases
> 
> Would it be conceivable to differentiate TINY, or better LOW_MEM and
> SMALL_FLASH independently (TINY being a build subtarget), per release ?
> 
> Ratio being that the demands on storage and memory grow with each release.
> So some device might in release 19.07 fall in the generic subtarget, but in
> 20.xx in TINY (and in 22.xx in SOURCE-ONLY).
> 

Paul,

that sound very similar to my idea, right (support --> source-only --> drop)?
>From the RAM-restriction side, 4/32 and 8/32 are the same and should probably 
not be treated very different. Even 8/32 gives the option to install more 
packages I experienced a lot of OOM events running them in background. 

In the mean time I tested moving the 8/32 to tiny and tweak the default- 
kernel config to strip it down. This massively improved the stability of a 
Ubiquity NSM5 already. It was sitting on my bench ideling and restarted at 
least once a day, now it's up and running since some days.

Regarding differentiating low_ram and small_flash: Probably the profiles can 
be used for this. But that's behind my knowledge.

Best Sven

> Regards,
> Paul
> 
> > Sven
> > 
> > Am Montag, 21. September 2020, 00:24:00 CEST schrieb Fernando Frediani:
> >> I have some concern to call tiny the 8/32 boards.
> >> While I understand the 4MB flash devices as phased out the 8/32 are
> >> still very popular and probably most of the devices still running in
> >> many and many places and they are not really tiny as of today. Some
> >> newer low priced are coming with 8/64, but the point is that OpenWrt has
> >> been the responsible for many devices to keep going for years with
> >> stability and this no doubt will happen with 8/32 for a while.
> >> Calling tiny means only 8MB flash or both 8MB flash and 32MB ram ? I may
> >> see a point to call the 8MB devices maybe, but not 32MB ram ones.
> >> 
> >> Fernando
> > 
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