Hi Wolfram,
On Fri, May 17, 2024 at 5:27 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> On Fri, May 17, 2024 at 5:18 PM Wolfram Sang
> <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
> > > The CAN-FD module on R-Car V4M is very similar to the one on R-Car V4H,
> > > but differ in some hardware parameters, as reflected by the Parameter
> > > Status Information part of the Global IP Version Register. However,
> > > none of this parameterization should have any impact on the driver, as
> > > the driver does not access any register that is impacted by the
> > > parameterization (except for the number of channels).
> >
> > Does the BSP work?
>
> I haven't tried the BSP in-se (it does not support Gray Hawk Single),
> but a forward port of rcar_canfd from the BSP exhibits the same behavior.
I just booted the BSP's kernel and its Gray Hawk DTS on Gray Hawk
Single, and I no longer get an error message when bringing up the CAN
devices. However, that does not make CAN work, as v5.10 (and the BSP
rcar-canfd driver) lack CAN transceiver support. Backporting that
didn't help, but now I have something more to investigate next week ;-)
Thanks!
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
