Re: [PATCH 1/2] arm64: dts: renesas: r8a77965: Add CAN controller nodes

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Hi Marek,

On Wed, Nov 21, 2018 at 12:33 AM Marek Vasut <marek.vasut@xxxxxxxxx> wrote:
> On 11/19/2018 10:00 AM, Geert Uytterhoeven wrote:
> > On Mon, Nov 19, 2018 at 12:46 AM Marek Vasut <marek.vasut@xxxxxxxxx> wrote:
> >> On 11/19/2018 12:02 AM, Wolfram Sang wrote:
> >>> On Sun, Nov 18, 2018 at 06:33:26PM +0100, Marek Vasut wrote:
> >>>> From: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
> >>>>
> >>>> This patch adds CAN{0,1} controller nodes for the R8A77965 SoC.
> >>>>
> >>>> Based on several similar patches of the R8A7795 device tree
> >>>> by Ramesh Shanmugasundaram <ramesh.shanmugasundaram@xxxxxxxxxxxxxx>
> >>>> and Geert Uytterhoeven <geert+renesas@xxxxxxxxx>.
> >>>>
> >>>> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
> >>>> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> >>>> Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> >>>> Cc: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
> >>>> Cc: Rob Herring <robh@xxxxxxxxxx>
> >>>> Cc: Simon Horman <horms+renesas@xxxxxxxxxxxx>
> >>>> Cc: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
> >>>> Cc: linux-renesas-soc@xxxxxxxxxxxxxxx
> >>>> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> >>>
> >>> Were you able to do some testing using EXIO connectors? Would be nice to
> >>> know what was tested.
> >>
> >> Not on the M3N, since I don't see it broken out on the EXIO ; is it
> >> really there ? It'd be easy to test on M3NSK with KF, but I don't have
> >> either KF or M3NSK.
> >
> > Please have a look at EXIO Connector D, pins 13/14/15.
>
> That's LBSC WE1n/WE0n/CS0n on S-XS . Is there something I obviously
> don't see ?

Unless you connect an expansion card to the Ex Memory Connector,
these signals are free to use, and can be pinmuxed to a CAN function.

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



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