Re: [PATCH 00/10] Remove support for TX49xx

2021-01-07 Thread Geert Uytterhoeven
Hi Nemoto-san,

On Thu, Jan 7, 2021 at 2:18 AM Atsushi Nemoto  wrote:
> On Wed, 6 Jan 2021 21:41:24 +0100, Geert Uytterhoeven  
> wrote:
> >> > Is that sufficient to keep it?
> >>
> >> for me it is. But now we probaly need some reverts then...
> >
> > Indeed. Fortunately not all of it, as some removals were TX4938-only.
>
> These patches should not break RBTX4927:
>
>   net: tc35815: Drop support for TX49XX boards
>   spi: txx9: Remove driver
>   mtd: Remove drivers used by TX49xx
>   char: hw_random: Remove tx4939 driver
>   rtc: tx4939: Remove driver
>   ide: tx4938ide: Remove driver

Indeed.

> And these patches just break audio-support only.
>
>   dma: tx49 removal
>   ASoC: txx9: Remove driver
>
> I think dma and ASoC drivers are hard to maintain now, and can be
> dropped for basic support for RBTX4927.
> (TX39 boards does not have audio-support, so dma txx9 driver can be
> dropped too)

Agreed, I don't test audio anyway, but I know it used to work (I had
intended to use the board as an MPD media server, but never got beyond
the prototyping phase).

Gr{oetje,eeting}s,

Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds


Re: [PATCH 00/10] Remove support for TX49xx

2021-01-06 Thread Atsushi Nemoto
On Wed, 6 Jan 2021 21:41:24 +0100, Geert Uytterhoeven  
wrote:
>> > Is that sufficient to keep it?
>>
>> for me it is. But now we probaly need some reverts then...
> 
> Indeed. Fortunately not all of it, as some removals were TX4938-only.

These patches should not break RBTX4927:

  net: tc35815: Drop support for TX49XX boards
  spi: txx9: Remove driver
  mtd: Remove drivers used by TX49xx
  char: hw_random: Remove tx4939 driver
  rtc: tx4939: Remove driver
  ide: tx4938ide: Remove driver

And these patches just break audio-support only.

  dma: tx49 removal
  ASoC: txx9: Remove driver

I think dma and ASoC drivers are hard to maintain now, and can be
dropped for basic support for RBTX4927.
(TX39 boards does not have audio-support, so dma txx9 driver can be
dropped too)

---
Atsushi Nemoto


Re: [PATCH 00/10] Remove support for TX49xx

2021-01-06 Thread Geert Uytterhoeven
Hi Thomas,

On Wed, Jan 6, 2021 at 7:49 PM Thomas Bogendoerfer
 wrote:
> On Wed, Jan 06, 2021 at 09:37:11AM +0100, Geert Uytterhoeven wrote:
> > On Tue, Jan 5, 2021 at 3:03 PM Thomas Bogendoerfer
> >  wrote:
> > > I couldn't find any buyable product other than reference boards using
> > > TX49xx CPUs. And since nobody showed interest in keeping support for
> > > it, it's time to remove it.
> >
> > I have an RBTX4927 development board in my board farm, boot-test every
> > bi-weekly renesas-drivers release on it, and fix kernel issues when they
> > appear.
> >
> > Is that sufficient to keep it?
>
> for me it is. But now we probaly need some reverts then...

Indeed. Fortunately not all of it, as some removals were TX4938-only.

> I wonder whether you have seen my mail about the removal
>
> https://lore.kernel.org/linux-mips/20201207105627.ga15...@alpha.franken.de
>
> and my call for people owning MIPS machines
>
> https://lore.kernel.org/linux-mips/20200227144910.ga25...@alpha.franken.de/

Sorry, I'm not following the linux-mips list that closely, so I hadn't
seen them.  It's always a good idea to CC linux-kernel, and perhaps the
few people who last touched the affected files.

> Still "unclaimed" machines are
>
> IMG Pistachio SoC based boards (MACH_PISTACHIO(
> Toshiba TX39 series based machines (MACH_TX39XX)
> NEC VR4100 series based machines (MACH_VR41XX)
> Netlogic XLR/XLS based systems (NLM_XLR_BOARD)
> Netlogic XLP based systems (NLM_XLP_BOARD)
> Sibyte BCM91120C-CRhine (SIBYTE_CRHINE)
> Sibyte BCM91120x-Carmel (SIBYTE_CARMEL)
> Sibyte BCM91125C-CRhone (SIBYTE_CRHONE)
> Sibyte BCM91125E-Rhone (SIBYTE_RHONE)
> Sibyte BCM91250C2-LittleSur (SIBYTE_LITTLESUR)
> Sibyte BCM91250E-Sentosa (SIBYTE_SENTOSA)
>
> Is there something on this list you also regulary use ?

No, I don't have anything from the list above.
The RBTX4927 is basically my last MIPS-based system I do boot
current kernels on.

In active use, not for development:
  - Ubiquiti EdgeRouter-X (Ralink-based).

Stored in my attic:
  - NetGear WNDR4300 (AtherOS-based),
  - MikroTik Routerboard 150 (ADMtek-based, no (longer?) supported upstream),
  - NEC DDB VRC-5476 (upstream support removed 15 years ago ;-)

Gr{oetje,eeting}s,

Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds


Re: [PATCH 00/10] Remove support for TX49xx

2021-01-06 Thread Thomas Bogendoerfer
On Wed, Jan 06, 2021 at 09:37:11AM +0100, Geert Uytterhoeven wrote:
> Hi Thomas,
> 
> CC Nemoto-san (de-facto TX49XX maintainer)
> 
> On Tue, Jan 5, 2021 at 3:03 PM Thomas Bogendoerfer
>  wrote:
> > I couldn't find any buyable product other than reference boards using
> > TX49xx CPUs. And since nobody showed interest in keeping support for
> > it, it's time to remove it.
> 
> I have an RBTX4927 development board in my board farm, boot-test every
> bi-weekly renesas-drivers release on it, and fix kernel issues when they
> appear.
> 
> Is that sufficient to keep it?

for me it is. But now we probaly need some reverts then...

I wonder whether you have seen my mail about the removal

https://lore.kernel.org/linux-mips/20201207105627.ga15...@alpha.franken.de

and my call for people owning MIPS machines

https://lore.kernel.org/linux-mips/20200227144910.ga25...@alpha.franken.de/

Still "unclaimed" machines are

IMG Pistachio SoC based boards (MACH_PISTACHIO(
Toshiba TX39 series based machines (MACH_TX39XX)
NEC VR4100 series based machines (MACH_VR41XX)
Netlogic XLR/XLS based systems (NLM_XLR_BOARD)
Netlogic XLP based systems (NLM_XLP_BOARD)
Sibyte BCM91120C-CRhine (SIBYTE_CRHINE)
Sibyte BCM91120x-Carmel (SIBYTE_CARMEL)
Sibyte BCM91125C-CRhone (SIBYTE_CRHONE)
Sibyte BCM91125E-Rhone (SIBYTE_RHONE)
Sibyte BCM91250C2-LittleSur (SIBYTE_LITTLESUR)
Sibyte BCM91250E-Sentosa (SIBYTE_SENTOSA)

Is there something on this list you also regulary use ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]


Re: [PATCH 00/10] Remove support for TX49xx

2021-01-06 Thread Atsushi Nemoto
Hi Geert!

On Wed, 6 Jan 2021 09:37:11 +0100, Geert Uytterhoeven  
wrote:
> Hi Thomas,
> 
> CC Nemoto-san (de-facto TX49XX maintainer)
> 
> On Tue, Jan 5, 2021 at 3:03 PM Thomas Bogendoerfer
>  wrote:
>> I couldn't find any buyable product other than reference boards using
>> TX49xx CPUs. And since nobody showed interest in keeping support for
>> it, it's time to remove it.
> 
> I have an RBTX4927 development board in my board farm, boot-test every
> bi-weekly renesas-drivers release on it, and fix kernel issues when they
> appear.
> 
> Is that sufficient to keep it?

It have been about 10 years since last time I see any TX49 board :-)

AFAIK Geert is the last user of TX49 SoC.
I'm OK with whole TX49xx (and TX39xx) removal if Geert (or any other
users) agreed.

---
Atsushi Nemoto


Re: [PATCH 00/10] Remove support for TX49xx

2021-01-06 Thread Geert Uytterhoeven
Hi Thomas,

CC Nemoto-san (de-facto TX49XX maintainer)

On Tue, Jan 5, 2021 at 3:03 PM Thomas Bogendoerfer
 wrote:
> I couldn't find any buyable product other than reference boards using
> TX49xx CPUs. And since nobody showed interest in keeping support for
> it, it's time to remove it.

I have an RBTX4927 development board in my board farm, boot-test every
bi-weekly renesas-drivers release on it, and fix kernel issues when they
appear.

Is that sufficient to keep it?

TX49xx SoCs were used in Sony LocationFree base stations, running
VxWorks. You can no longer buy them.
I'm not aware of anyone ever porting Linux to them.
https://en.wikipedia.org/wiki/LocationFree_Player

>   spi: txx9: Remove driver

I only noticed the planned removal when I saw the SPI patch was applied.
Doesn't matter for me, as SPI is only present on TX4938, not on TX4927 ;-)

Gr{oetje,eeting}s,

Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds