Hi Prabhakar,
On Thu, 12 Jun 2025 at 15:25, Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote:
> On Thu, Jun 12, 2025 at 1:49 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> > On Wed, 28 May 2025 at 16:05, Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> > >
> > > Enable USB2.0 support on the RZ/V2N EVK board, CN2 connector on the EVK
> > > supports host/function operation.
> > >
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> >
> > Thanks for your patch!
> >
> > > --- a/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
> > > +++ b/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
> > > @@ -302,6 +317,16 @@ sd1-dat-cmd {
> > > slew-rate = <0>;
> > > };
> > > };
> > > +
> > > + usb20_pins: usb20 {
> > > + ovc {
> > > + pinmux = <RZV2N_PORT_PINMUX(9, 6, 14)>; /* OVC */
> >
> > Any specific reason why OVC needs "bias-pull-up" on RZ/V2H EVK, but
> > not on RZ/V2N EVK?
> >
> On the RZ/V2N EVK for the USB20_OVRCUR pin we have R13110K0603 pullup
> resistor, this was missing on the earlier version of the RZ/V2H EVK
> due to which we saw false OC condition (as seen below). Said that the
Thanks, I missed following one branch on the schematics :-(
> actual EVKs for RZ/V2H for which support is being added do have this
> pullup resistor. After testing I will post a patch to drop the
> `bias-pull-up` property from the RZ/V2H DTS (thanks for reminding me
> :-)).
Great, 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
