Hi Rob,
On Tue, Feb 4, 2020 at 10:12 AM Rob Landley <rob@xxxxxxxxxxx> wrote:
> On 2/4/20 2:01 AM, Geert Uytterhoeven wrote:
> > On Tue, Feb 4, 2020 at 7:52 AM Peter Ujfalusi <peter.ujfalusi@xxxxxx> wrote:
> >> On 03/02/2020 22.34, Geert Uytterhoeven wrote:
> >>> On Mon, Feb 3, 2020 at 9:21 PM John Paul Adrian Glaubitz
> >>> <glaubitz@xxxxxxxxxxxxxxxxxxx> wrote:
> >>>> On 2/3/20 2:32 PM, Geert Uytterhoeven wrote:
> >>>>> Both rspi and sh-msiof have users on legacy SH (i.e. without DT):
> >>>>
> >>>> FWIW, there is a patch set by Yoshinori Sato to add device tree support
> >>>> for classical SuperH hardware. It was never merged, unfortunately :(.
> >>>
> >>> True.
> >>>
> >>>>> Anyone who cares for DMA on SuperH?
> >>>>
> >>>> What is DMA used for on SuperH? Wouldn't dropping it cut support for
> >>>> essential hardware features?
> >>>
> >>> It may make a few things slower.
>
> The j-core stuff has DMA but we haven't hooked it up to dmaengine yet. (It's on
> the todo list but pretty far down.)
And would use DT. Hence the issue is not applicable to j-core.
> The turtle boards need it USB, ethernet, and sdcard, but Rich Felker hasn't
> finished the j32 port yet (we just got him the updated docs last month) and the
> existing implementation is nommu so the things that are using it are reaching
> around behind the OS's back...
Is j32 the (rebranded) j4?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
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
