From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
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@bp.renesas.com>
---
.../dts/renesas/r9a09g056n48-rzv2n-evk.dts | 36 +++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
index 55aa2bdce132..795d9f6b9651 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
@@ -82,6 +82,11 @@ &audio_extal_clk {
clock-frequency = <22579200>;
};
+&ehci0 {
+ dr_mode = "otg";
+ status = "okay";
+};
+
ð0 {
pinctrl-0 = <ð0_pins>;
pinctrl-names = "default";
@@ -103,6 +108,11 @@ &gpu {
mali-supply = <®_0p8v>;
};
+&hsusb {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&i2c0 {
pinctrl-0 = <&i2c0_pins>;
pinctrl-names = "default";
@@ -190,6 +200,11 @@ phy1: ethernet-phy@1 {
};
};
+&ohci0 {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&ostm0 {
status = "okay";
};
@@ -302,6 +317,16 @@ sd1-dat-cmd {
slew-rate = <0>;
};
};
+
+ usb20_pins: usb20 {
+ ovc {
+ pinmux = <RZV2N_PORT_PINMUX(9, 6, 14)>; /* OVC */
+ };
+
+ vbus {
+ pinmux = <RZV2N_PORT_PINMUX(9, 5, 14)>; /* VBUS */
+ };
+ };
};
&qextal_clk {
@@ -330,6 +355,17 @@ &sdhi1 {
status = "okay";
};
+&usb20phyrst {
+ status = "okay";
+};
+
+&usb2_phy0 {
+ pinctrl-0 = <&usb20_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
&wdt1 {
status = "okay";
};
--
2.49.0Hi Prabhakar,
On Wed, 28 May 2025 at 16:05, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> 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@bp.renesas.com>
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?
> + };
> +
> + vbus {
> + pinmux = <RZV2N_PORT_PINMUX(9, 5, 14)>; /* VBUS */
> + };
> + };
> };
>
> &qextal_clk {
The rest LGTM, so
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v6.17 when the above is sorted out.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@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
Hi Geert,
Thank you for the review.
On Thu, Jun 12, 2025 at 1:49 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Wed, 28 May 2025 at 16:05, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > 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@bp.renesas.com>
>
> 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
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
:-)).
[ 2.672424] usb usb3-port1: over-current condition
[ 2.792424] usb usb4-port1: over-current condition
Cheers,
Prabhakar
Hi Prabhakar,
On Thu, 12 Jun 2025 at 15:25, Lad, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> On Thu, Jun 12, 2025 at 1:49 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Wed, 28 May 2025 at 16:05, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > >
> > > 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@bp.renesas.com>
> >
> > 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@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
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